CN114535387A

CN114535387A - Arc-shaped plate extrusion forming device for plate manufacturing

Info

Publication number: CN114535387A
Application number: CN202210417568.8A
Authority: CN
Inventors: 徐滕州; 李兴; 曹铃林; 叶信立
Original assignee: Nantong Weipu New Material Co ltd
Current assignee: Nantong Weipu New Material Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-05-27
Anticipated expiration: 2042-04-21
Also published as: CN114535387B

Abstract

The invention relates to an extrusion forming device, in particular to an arc-shaped plate extrusion forming device for manufacturing plates. The invention provides the arc-shaped plate extrusion forming device for manufacturing the plate, which is simple and convenient in operation method and high in extrusion efficiency. The invention provides an arc-shaped plate extrusion forming device for manufacturing plates, which comprises an installation platform, a bottom plate, an installation plate, a baffle plate and the like, wherein the installation plate and the bottom plate are respectively connected between the left inner wall and the right inner wall of the upper side and the lower side of the installation platform, and the baffle plate is connected to the top in the installation platform. Place panel on the workbin, start the cylinder, push away panel to the arc mould through the stripper plate on, through panel on the arc clamp plate extrusion arc mould to this operation of accomplishing arc extrusion shaping, can release by the arc fast through the work or material rest, makes operating method simple and convenient with this, and extruded is efficient.

Description

Arc-shaped plate extrusion forming device for plate manufacturing

Technical Field

The invention relates to an extrusion forming device, in particular to an arc-shaped plate extrusion forming device for manufacturing plates.

Background

The panel is a material panel with standard size, and its types are various, and the common panels in daily life are wooden panel, plastic panel and metal panel, among the above panels, because the metal panel has the characteristics of weldability, bending, etc., the material panel of this type is called "universal steel" in the building industry. In the preparation sheet metal, can be according to the shape of needs with sheet metal stamping process into appointed shape usually, prior art when will processing the arc steel sheet, at first need place ordinary steel sheet on the arc grinding apparatus, then start stamping device again and carry out extrusion to it, later with the arc board of extrudeing well unloading, this kind of operation method is comparatively loaded down with trivial details, at the bottom of the work efficiency.

According to patent grant publication No. CN214556437U curved punching equipment of arc steel sheet, concretely relates to steel sheet punching press technical field, including the base, the base top is provided with first bracing piece, first bracing piece one side is provided with first pneumatic cylinder, first pneumatic cylinder top is provided with the second bracing piece, first spout has been seted up to the upper surface that just is located the base between first bracing piece and the second bracing piece, first spout top is provided with forming mechanism. This crooked stamping equipment of arc steel sheet is when carrying out arc extrusion, the roof removes the card and is being placed one side of board and third module, fix a position panel with this, stretch out through starting the second hydraulic stem, the arc piece extrudees with the second arc angle mutually, can extrude panel into the arc with this, this method though can accomplish the operation of arc extrusion, but all need the operating personnel to take out the arc after having extruded at every turn, then place the top at the second module with the panel of taking the punching press, this operation method is comparatively loaded down with trivial details, and at the bottom of the work efficiency.

According to the defects in the prior art, the arc-shaped plate extrusion forming device for manufacturing the plate is designed, which can overcome the defects in the prior art, is simple and convenient to operate and high in extrusion efficiency.

Disclosure of Invention

In order to overcome the defects of complicated operation method and low working efficiency of the prior art, the invention provides the arc-shaped plate extrusion forming device for manufacturing the plate, which is simple and convenient in operation method and high in extrusion efficiency.

In order to solve the technical problem, the invention provides an arc-shaped plate extrusion forming device for manufacturing plates, which comprises an installation platform, a bottom plate, an installation plate, a baffle, an extrusion mechanism and a discharging mechanism, wherein the installation plate and the bottom plate are respectively connected between the left inner wall and the right inner wall of the upper side and the lower side of the installation platform, the baffle is connected to the top in the installation platform, the installation platform is provided with the blanking mechanism and the extrusion mechanism, and the extrusion mechanism is provided with the discharging mechanism.

Preferably, extrusion mechanism is including cylinder, arc clamp plate and arc mould, and mount table upper portion inboard is connected with the arc mould, and the arc mould is located the baffle dead astern, and the cylinder is installed to mount table upper portion rear side, is connected with the arc clamp plate on the cylinder extensible member, and the shape of arc clamp plate can agree with the shape of arc mould.

Preferably, the discharging mechanism comprises a first guide rod, a first return spring, a material pushing frame and an extrusion frame, the rear side of the middle part of the air cylinder is connected with the first guide rod, the material pushing frame in contact with the arc-shaped mold is sleeved on the first guide rod in a sliding mode, the first return spring is connected between the material pushing frame and the first guide rod, the first return spring is arranged on the outer side of the first guide rod in a winding mode, and the extrusion frame in contact with the material pushing frame is sleeved on the air cylinder telescopic piece.

Preferably, the blanking mechanism comprises a blanking box, an L-shaped plate, a first guide block and a second return spring, the connecting rod, the stripper plate, third reset spring and push pedal, the workbin has been placed to the mount table upside, the workbin is located the mounting panel top, mount table upper portion bilateral symmetry formula is equipped with the guide bar, two guide bars are located the left and right sides of mounting panel respectively, the sliding sleeve is equipped with the stripper plate on the guide bar, the side is higher than the mounting panel side on the stripper plate, be connected with third reset spring between stripper plate and the guide bar, third reset spring is around establishing in the guide bar outside, two anterior downside symmetry formulas of stripper plate are equipped with the connecting rod, mount table rear portion left and right sides symmetry formula is equipped with first guide block, first guide block upside slidingtype is equipped with the L template with homonymy connecting rod contact, be connected with second reset spring between L template and the first guide block of homonymy, stripper frame lower part front side bilateral symmetry formula is equipped with the push pedal with L template contact.

Preferably, the automatic feeding device further comprises an adjusting mechanism, the adjusting mechanism comprises a second guide rod, a second guide block, a screw rod and a nut, the left side and the right side of the upper portion of the mounting table are respectively connected with the second guide rod and the screw rod, the screw rod is rotatably arranged on the mounting table, the screw rod is provided with the nut connected with the blanking box in a threaded sleeve mode, and the second guide rod is provided with the second guide block connected with the blanking box in a sliding sleeve mode.

Preferably, the collecting device further comprises a collecting mechanism, the collecting mechanism comprises a handle, a storage rack, a magnetic rack, a third guide rod and a connecting spring, the third guide rod is connected to the lower side of the rear portion of the mounting table, the magnetic rack is slidably sleeved on the third guide rod, the connecting spring is connected between the magnetic rack and the third guide rod, the connecting spring is wound on the outer side, the storage rack is magnetically adsorbed on the bottom in the magnetic rack, and the handle is connected to the front side of the storage rack.

Preferably, the alarm device further comprises a reminding mechanism, the reminding mechanism comprises a rotating rod, a torsional spring, a knocking rod and a bell, the bell and the rotating rod are sequentially arranged on the left inner side wall and the right inner side wall of the lower portion of the mounting platform from front to back, the rotating rod is rotatably arranged on the mounting platform, the torsional spring is connected between the rotating rod and the mounting platform and wound on the outer side of the rotating rod, and the knocking rod capable of contacting with the bell is connected to the rotating rod.

Preferably, the material of mount table is high carbon steel.

On the basis of overcoming the defects of the prior art, the invention can also achieve the following beneficial effects:

1. place panel on the workbin, start the cylinder, push away panel to the arc mould through the stripper plate on, through panel on the arc clamp plate extrusion arc mould to this operation of accomplishing arc extrusion shaping, can release by the arc fast through the work or material rest, makes operating method simple and convenient with this, and extruded is efficient.

2. The distance between the blanking box and the mounting plate is adjusted by rotating the screw rod, so that the device is suitable for plates with different heights and has more superiority.

3. After the arc extrusion, can push away the arc to the storage rack through pushing away the work or material rest on, can collect the processing to the arc through the storage rack to this can make things convenient for the collection of arc.

4. After the arc plates on the storage rack are fully placed, the magnetic rack can knock the small bell through the knocking rod, so that an operator can be reminded of collecting the arc plates in time, and the arc plates are prevented from being stacked too much.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the adjusting mechanism of the present invention.

Fig. 3 is a schematic perspective view of the blanking mechanism of the present invention.

Fig. 4 is a three-dimensional structural section view of the blanking mechanism of the present invention.

Fig. 5 is a perspective sectional view of the extruding mechanism and the discharging mechanism of the present invention.

Fig. 6 is an enlarged view of the invention at a.

Fig. 7 is a cross-sectional view of a first partial body construction of a collection mechanism of the present invention.

Fig. 8 is a cross-sectional view of a second partial body construction of a collection mechanism of the present invention.

The labels in the figures are: 1-mounting table, 2-bottom plate, 21-mounting plate, 22-baffle plate, 3-extruding mechanism, 31-air cylinder, 32-arc-shaped pressing plate, 33-arc-shaped mould, 4-unloading mechanism, 41-first guide rod, 42-first return spring, 43-material pushing frame, 44-extruding frame, 5-material discharging mechanism, 51-material discharging box, 52-L-shaped plate, 53-first guide block, 54-second return spring, 55-connecting rod, 56-extruding plate, 57-third return spring, 58-pushing plate, 6-adjusting mechanism, 61-second guide rod, 62-second guide block, 63-screw rod, 64-nut, 7-collecting mechanism, 71-handle, 72-storage frame, 73-magnetic frame, 74-a third guide rod, 75-a connecting spring, 8-a reminding mechanism, 81-a rotating rod, 82-a torsion spring, 83-a knocking rod and 84-a bell.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

The utility model provides an arc extrusion device for panel preparation, as shown in fig. 1, fig. 3, fig. 4 and fig. 5, including mount table 1, bottom plate 2, mounting panel 21, baffle 22, extrusion mechanism 3 and shedding mechanism 4, mounting panel 21 and bottom plate 2 have been bolted respectively between the two inner walls about the mount table 1 upper and lower both sides, the material of mount table 1 is high carbon steel, the quality is stronger, top welding baffle 22 in the mount table 1, be provided with unloading mechanism 5 and extrusion mechanism 3 on the mount table 1, be provided with shedding mechanism 4 on the extrusion mechanism 3.

As shown in fig. 5, the extruding mechanism 3 includes an air cylinder 31, an arc-shaped pressing plate 32 and an arc-shaped mold 33, the arc-shaped mold 33 is bolted on the inner side of the upper portion of the mounting table 1, the arc-shaped mold 33 is located right behind the baffle 22, the air cylinder 31 is installed on the rear side of the upper portion of the mounting table 1 in a screw connection mode, the arc-shaped pressing plate 32 is bolted on the telescopic piece of the air cylinder 31, and the shape of the arc-shaped pressing plate 32 can be matched with the shape of the arc-shaped mold 33.

As shown in fig. 5, the discharging mechanism 4 includes a first guide rod 41, a first return spring 42, a material pushing frame 43 and an extruding frame 44, the first guide rod 41 is bolted to the rear side of the middle portion of the cylinder 31, the material pushing frame 43 contacting with the arc-shaped mold 33 is slidably sleeved on the first guide rod 41, the first return spring 42 is connected between the material pushing frame 43 and the first guide rod 41, the first return spring 42 is wound around the outer side of the first guide rod 41, and the extruding frame 44 contacting with the material pushing frame 43 is sleeved on the telescopic part of the cylinder 31.

As shown in fig. 3 and 4, the blanking mechanism 5 comprises a blanking box 51, an L-shaped plate 52, a first guide block 53, a second return spring 54, a connecting rod 55, an extrusion plate 56, a third return spring 57 and a push plate 58, the blanking box 51 is placed on the upper side of the mounting table 1, the blanking box 51 is positioned above the mounting plate 21, guide rods are welded on the upper portion of the mounting table 1 in a bilateral symmetry manner, the two guide rods are respectively positioned on the left side and the right side of the mounting plate 21, the extrusion plate 56 is slidably sleeved on the guide rods, the upper side of the extrusion plate 56 is higher than the upper side of the mounting plate 21, the third return spring 57 is connected between the extrusion plate 56 and the guide rods, the third return spring 57 is wound on the outer sides of the guide rods, the connecting rods 55 are symmetrically bolted on the lower sides of the front portions of the two extrusion plates 56, the first guide blocks 53 are symmetrically bolted on the left side and the right side of the rear portion of the mounting table 1, the L-shaped plate 52 in contact with the connecting rod 55 in a sliding manner on the upper side of the first guide block 53, a second return spring 54 is connected between the L-shaped plate 52 and the first guide block 53 on the same side, and push plates 58 which are contacted with the L-shaped plate 52 are symmetrically arranged on the left and right sides of the lower part of the extrusion frame 44.

Firstly, an operator starts the air cylinder 31 to shorten, the telescopic part of the air cylinder 31 drives the arc-shaped pressing plate 32 and the extrusion frame 44 to move downwards, the push plate 58 at the moment is abutted against the L-shaped plate 52, the second return spring 54 is in an extension state, the extrusion frame 44 moves downwards to drive the push plate 58 to move downwards to release the L-shaped plate 52, the second return spring 54 resets, the L-shaped plate 52 at the moment is extruding the connecting rod 55, the third return spring 57 is in an extension state, the L-shaped plate 52 moves downwards to release the connecting rod 55 under the action of the reset of the second return spring 54, the third return spring 57 resets, the connecting rod 55 drives the extrusion plate 56 to move forwards to penetrate between the blanking box 51 and the mounting plate 21 under the action of the reset of the third return spring 57, then the operator closes the air cylinder 31 to place the plate on the blanking box 51, the plate on the blanking box 51 falls onto the mounting plate 21, and the distance between the blanking box 51 and the mounting plate 21 can place a next plate, the operator starts the cylinder 31 again to extend, the telescopic part of the cylinder 31 drives the extrusion frame 44 to move upwards, the extrusion frame 44 moves upwards to drive the push plate 58 to push the L-shaped plate 52 upwards, the second return spring 54 is stretched, the L-shaped plate 52 moves upwards to drive the connecting rod 55 to drive the extrusion plate 56 to move backwards, the third return spring 57 is stretched, the extrusion plate 56 moves backwards to penetrate between the blanking box 51 and the mounting plate 21 again and push the plate on the mounting plate 21 backwards, the plate is forced to move backwards and fall onto the arc-shaped die 33, the baffle plate 22 can prevent the plate from inclining, the operator then closes the cylinder 31, thereby completing the feeding operation, the operator starts the cylinder 31 again to shorten, the telescopic part of the cylinder 31 can simultaneously drive the extrusion frame 44 and the arc-shaped press plate 32 to move downwards, the extrusion frame 44 moves downwards to drive the push rod 43 to move backwards to separate from the arc-shaped die rack 33, the first return spring 42 is compressed, the arc-shaped pressing plate 32 moves downwards to extrude the plate to be in contact with the arc-shaped die 33, the plate is extruded into an arc shape, the operation of arc-shaped plate extrusion forming can be completed, then an operator starts the cylinder 31 to extend, the cylinder 31 telescopic part can simultaneously drive the extrusion frame 44 and the arc-shaped pressing plate 32 to move upwards, the arc-shaped plate can be loosened by the upward movement of the arc-shaped pressing plate 32, the extrusion frame 44 moves upwards to loosen the material pushing frame 43, the first return spring 42 resets, the material pushing frame 43 can push the arc-shaped plate forwards under the reset effect of the first return spring 42, the arc-shaped plate is separated from the arc-shaped die 33, the discharging operation can be completed, the operator closes the cylinder 31 afterwards, and the operation of arc-shaped plate extrusion forming can be continuously performed by operating the cylinder 31 in a reciprocating mode.

Example 2

On the basis of embodiment 1, as shown in fig. 1 and fig. 2, the device further includes an adjusting mechanism 6, the adjusting mechanism 6 includes a second guide rod 61, a second guide block 62, a screw 63 and a nut 64, the left and right sides of the upper portion of the mounting table 1 are respectively connected with the second guide rod 61 and the screw 63, the screw 63 is rotatably disposed on the mounting table 1, the nut 64 welded to the blanking box 51 is threadedly sleeved on the screw 63, and the second guide block 62 welded to the blanking box 51 is slidably sleeved on the second guide rod 61.

An operator rotates the screw 63 clockwise, the screw 63 drives the blanking box 51 to move upwards through the nut 64, the distance between the blanking box 51 and the mounting plate 21 is increased accordingly, the operator rotates the screw 63 anticlockwise, the screw 63 drives the blanking box 51 to move downwards through the nut 64, the distance between the blanking box 51 and the mounting plate 21 is reduced accordingly, and therefore the distance between the blanking box 51 and the mounting plate 21 can be adjusted and adapted according to the height of the plates.

Example 3

In addition to embodiment 2, as shown in fig. 1, 7 and 8, the device further includes a collecting mechanism 7, the collecting mechanism 7 includes a handle 71, a storage rack 72, a magnetic rack 73, a third guide rod 74 and a connecting spring 75, the third guide rod 74 is bolted to the lower side of the rear portion of the mounting table 1, the magnetic rack 73 is slidably sleeved on the third guide rod 74, the connecting spring 75 is connected between the magnetic rack 73 and the third guide rod 74, the connecting spring 75 is wound on the outer side, the storage rack 72 is magnetically attracted to the bottom in the magnetic rack 73, and the handle 71 is welded to the front side of the storage rack 72.

As shown in FIGS. 1 and 6, the alarm device further comprises an alarm mechanism 8, wherein the alarm mechanism 8 comprises a rotating rod 81, a torsion spring 82, a knocking rod 83 and a bell 84, the bell 84 and the rotating rod 81 are sequentially arranged on the left inner side wall and the right inner side wall of the lower portion of the mounting platform 1 from front to back, the rotating rod 81 is rotatably arranged on the mounting platform 1, the torsion spring 82 is connected between the rotating rod 81 and the mounting platform 1, the torsion spring 82 is wound on the outer side of the rotating rod 81, and the knocking rod 83 capable of contacting with the bell 84 is bolted to the rotating rod 81.

When the pushing frame 43 pushes the arc plate to be separated from the arc mold 33, the arc plate falls onto the storage rack 72, the storage rack 72 gradually presses the magnetic rack 73 to move downwards while the arc plate is continuously increased, the connecting spring 75 is compressed, when the arc plate on the storage rack 72 is fully placed, the magnetic rack 73 moves downwards to a limit position and presses the rotating rod 81 to rotate, the torsion spring 82 deforms, the rotating rod 81 drives the striking rod 83 to rotate, the striking rod 83 rotates to strike the bell 84, so that the bell 84 can make a sound to prompt an operator to collect the arc plate on the storage rack 72, the operator can take out the storage rack 72 from the magnetic rack 73 through the handle 71, the connecting spring 75 resets, the magnetic rack 73 moves upwards under the action of the reset of the connecting spring 75 to loosen the rotating rod 81, the torsion spring 82 resets, the rotating rod 81 drives the striking rod 83 to reversely rotate under the action of the reset of the torsion spring 82 to loosen the bell 84, the operator can collect the arc plates on the storage rack 72 at this time, then put the storage rack 72 back on the magnetic rack 73, and the magnetic rack 73 adsorbs the storage rack 72, so that the storage rack 72 can be continuously used for collecting the arc plates.

The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. The utility model provides an arc extrusion device for panel preparation, including mount table (1), bottom plate (2), mounting panel (21) and baffle (22), a serial communication port, still including extrusion mechanism (3) and shedding mechanism (4), be connected with mounting panel (21) and bottom plate (2) that are used for placing panel respectively between the two inner walls of the left and right sides about mount table (1), the top is connected with baffle (22) in mount table (1), be provided with unloading mechanism (5) and extrusion mechanism (3) on mount table (1), be provided with shedding mechanism (4) on extrusion mechanism (3).

2. The arc-shaped plate extrusion forming device for manufacturing the plates according to claim 1, wherein the extrusion mechanism (3) comprises an air cylinder (31), an arc-shaped pressing plate (32) and an arc-shaped die (33), the inner side of the upper portion of the mounting table (1) is connected with the arc-shaped die (33) for forming the plates, the arc-shaped die (33) is located right behind the baffle (22), the air cylinder (31) for power output is installed on the rear side of the upper portion of the mounting table (1), the arc-shaped pressing plate (32) for extruding the plates is connected to the telescopic piece of the air cylinder (31), and the shape of the arc-shaped pressing plate (32) can be matched with the shape of the arc-shaped die (33).

3. The arc-shaped plate extrusion forming device for manufacturing plates according to claim 2, wherein the discharging mechanism (4) comprises a first guide rod (41), a first return spring (42), a material pushing frame (43) and an extrusion frame (44), the first guide rod (41) for guiding is connected to the rear side of the middle of the air cylinder (31), the material pushing frame (43) which is in contact with the arc-shaped die (33) and used for pushing the arc-shaped plate out is slidably sleeved on the first guide rod (41), the first return spring (42) is connected between the material pushing frame (43) and the first guide rod (41), the first return spring (42) is wound on the outer side of the first guide rod (41), and the extrusion frame (44) in contact with the material pushing frame (43) is sleeved on an expansion part of the air cylinder (31).

4. The arc-shaped plate extrusion forming device for manufacturing the plates according to claim 3, wherein the blanking mechanism (5) comprises a blanking box (51), an L-shaped plate (52), a first guide block (53), a second return spring (54), a connecting rod (55), an extrusion plate (56), a third return spring (57) and a push plate (58), the blanking box (51) for placing the plates is placed on the upper side of the mounting table (1), the blanking box (51) is positioned above the mounting plate (21), guide rods are symmetrically arranged on the left and right sides of the upper portion of the mounting table (1), the two guide rods are respectively positioned on the left and right sides of the mounting plate (21), the extrusion plate (56) for pushing the plates is slidably sleeved on the guide rods, the upper side surface of the extrusion plate (56) is higher than the upper side surface of the mounting plate (21), and the third return spring (57) for returning the extrusion plate (56) is connected between the extrusion plate (56) and the guide rods, third reset spring (57) is around establishing in the guide bar outside, two anterior downside symmetries of stripper plate (56) are equipped with connecting rod (55), the left and right sides symmetry at mount table (1) rear portion is equipped with first guide block (53), first guide block (53) upside slidingtype is equipped with L template (52) with homonymy connecting rod (55) contact, be connected with second reset spring (54) between L template (52) and homonymy first guide block (53), stripper frame (44) lower part front side bilateral symmetry is equipped with push pedal (58) with L template (52) contact.

5. The arc-shaped plate extrusion forming device for manufacturing the plates as claimed in claim 4, further comprising an adjusting mechanism (6) for adjusting the height of the blanking box (51), wherein the adjusting mechanism (6) comprises a second guide rod (61), a second guide block (62), a screw rod (63) and a nut (64), the left side and the right side of the upper portion of the mounting table (1) are respectively connected with the second guide rod (61) and the screw rod (63) used for transmission, the screw rod (63) is rotatably arranged on the mounting table (1), the nut (64) connected with the blanking box (51) is sleeved on the screw rod (63) in a threaded manner, and the second guide block (62) connected with the blanking box (51) is slidably sleeved on the second guide rod (61).

6. The arc-shaped plate extrusion forming device for manufacturing the plates according to claim 5, further comprising a collecting mechanism (7) for collecting the arc-shaped plates, wherein the collecting mechanism (7) comprises a handle (71), a storage rack (72), a magnetic rack (73), a third guide rod (74) and a connecting spring (75), the lower side of the rear portion of the mounting table (1) is connected with the third guide rod (74), the magnetic rack (73) is slidably sleeved on the third guide rod (74), the connecting spring (75) is connected between the magnetic rack (73) and the third guide rod (74), the connecting spring (75) is wound on the outer side, the storage rack (72) for placing the arc-shaped plates is magnetically adsorbed at the inner bottom of the magnetic rack (73), and the handle (71) for pulling the storage rack (72) is connected to the front side of the storage rack (72).

7. The arc-shaped plate extrusion forming device for manufacturing the plate as claimed in claim 6, further comprising a reminding mechanism (8) for reminding an operator, wherein the reminding mechanism (8) comprises a rotating rod (81), a torsion spring (82), a knocking rod (83) and a bell (84), the bell (84) and the rotating rod (81) for giving out a warning sound are sequentially arranged on the left inner side wall and the right inner side wall of the lower portion of the mounting table (1) from front to back, the rotating rod (81) is rotatably arranged on the mounting table (1), the torsion spring (82) used for resetting the rotating rod (81) is connected between the rotating rod (81) and the mounting table (1), the torsion spring (82) is wound on the outer side of the rotating rod (81), and the knocking rod (83) capable of contacting with the bell (84) is connected to the rotating rod (81).

8. The arc plate extrusion molding device for manufacturing the plate material as claimed in claim 7, wherein the material of the mounting table (1) is high carbon steel.