JP3222295U - Bar feeder lifting mechanism - Google Patents

Abstract

A lifting mechanism for a bar feeder is provided. A lifting mechanism 20 of a bar feeder includes a fixed seat 30, a horizontal moving plate 40, and a lifting seat 50. The horizontal moving plate is disposed on the fixed seat and has an inclined groove 42. The elevating seat is disposed on the fixed seat and has a transmission portion. The transmission part 52 is fitted into the inclined groove of the horizontal movement plate. When the lifting / lowering seat is lifted by the driving force of the horizontal moving plate, the lifting / lowering seat pushes out the bar to be processed by the plate-like push portion, falls from the material rack to the material supply base, and advances the subsequent processing. When the force pushing the lifting seat is released by the horizontal moving plate, the lifting seat is pulled downward by the holding member and restored to the initial position. [Selection] Figure 2

Description

  The present invention relates to a bar feeder, and more particularly to a lifting mechanism of a bar feeder.

  In order to correspond to the automatic processing operation of the mother machine (for example, CNC lathe), the rod material to be processed is placed on the material rack arranged in the bar feeder, lifted by the lifting mechanism, and rolled from the material rack to the material supply stand. It is fed into the mother machine by the push rod and processed.

  Although the prior art generally employs a pneumatic cylinder as a lifting mechanism, the reaction time of the pneumatic cylinder is often not long enough to extend the working time. On the other hand, the service life of the pneumatic cylinder is not long. When a failure occurs, maintenance becomes complicated, and the cost of maintenance is high because the entire pneumatic cylinder is often replaced.

  The main object of the present invention is to provide a lifting mechanism of a bar feeder which is simple in structure and quick in reaction speed as well as easy in maintenance.

  In order to solve the problems described above, the lifting mechanism of the bar feeder includes a fixed seat, a horizontal movement plate, a lift seat, and a holding member. The fixed seat is located below the material rack. The horizontal movement plate is disposed to be horizontally movable in the fixed seat and has an inclined groove. The lift seat is arranged to be movable up and down on the fixed seat, and has a transmission portion and a plate-like push portion. Since the transmission part is slipped in and fitted to the inclined groove of the horizontal movement plate, the lift seat can be moved from the initial position to the raised position by the driving force of the horizontal movement plate. When the lift seat is set at the initial position, the plate-like push portion of the lift seat is not exposed on the top surface of the material rack, and the rod material to be processed is allowed to rest on the material rack. When the elevating seat is placed in the raised position, the plate-like push portion of the elevating seat protrudes on the top surface of the material rack, thrusts the rod to be processed and falls from the material rack to the material supply table. Subsequently, the rod to be processed is fed into the mother machine by the push rod and processed. The holding member is disposed at the elevator seat, and holds the elevator seat in the initial position before being moved by the driving force of the horizontal moving plate.

  In summary of the structural features described above, the lifting mechanism of the bar feeder according to the present invention is simple in structure and quick in reaction speed as compared to the prior art employing a pneumatic cylinder, and in the event of breakage, part replacement Or easy to maintain.

  In the case of relative preference, the fixed seat has a bottom plate and a bore formed in the bottom plate. The holding member has a lifting rod and a weight. The lifting rod is inserted into the bore of the fixed seat, the tip is connected to the receiving plate of the lift seat and the end is connected to the weight. The above-described structural feature allows the horizontal moving plate to be pulled, overcome the external force of the lift seat received from the holding member, and raise the lift seat to the raised position. When the pulling force of the horizontal movement plate is released, the lift seat is lowered to the initial position by the weight.

  The detailed structure, features, assembly or use of the lifting mechanism of the bar feeder according to the present invention will be clarified through the detailed description of the following embodiments. In addition, the following detailed description and the embodiments presented by the present invention are merely examples for explaining the present invention, and it is not possible to limit the claims of the present invention if there is common sense in the field related to the present invention. It should be understandable.

FIG. 5 is a perspective view of a bar feeder employing a lifting mechanism according to an embodiment of the present invention. FIG. 5 is a perspective view showing the lift seat in an initial position in the lifting mechanism according to an embodiment of the present invention; FIG. 5 is a plan view showing the lift seat in an initial position in the lifting mechanism according to an embodiment of the present invention; FIG. 5 is a perspective view showing the lift seat in the raised position in the lifting mechanism according to the embodiment of the present invention; FIG. 6 is a plan view showing the lift seat maintained in the raised position in the lifting mechanism according to the embodiment of the present invention; FIG. 5 is a perspective view showing a bar feeder positioned on a material rack in a bar feeder adopting a lifting mechanism according to an embodiment of the present invention. FIG. 5 is a perspective view of a bar feeder employing a lifting mechanism according to an embodiment of the present invention in which a bar is positioned on a material supply stand.

  Hereinafter, the lifting mechanism of the bar feeder according to the present invention will be described based on the drawings. In the specification, directional terms are expressed based on the directions shown in the drawings. The same reference numerals in the drawings indicate structural features of the same or similar parts.

  As shown in FIGS. 1 to 6, the bar feeder 10 has a material rack 11 and a material supply stand 13. The material rack 11 is disposed on the front side of the bar feeder 10 to place the bar 15 to be processed. The material supply stand 13 is disposed beside the material rack 11. As shown in FIG. 7, the rod 15 to be processed is lifted by the lifting mechanism 20 according to an embodiment of the present invention, and rolled from the material rack 11 to the material supply stand 13. The bar feeder 10 is not the focus of the present invention, but is a prior art, so the details and the operation principle will not be described.

(One embodiment)
As shown in FIGS. 2 and 4, a lifting mechanism 20 according to an embodiment of the present invention includes a fixed seat 30, a horizontal movement plate 40, a lift seat 50 and a holding member 60.

  As shown in FIG. 6, the fixed seat 30 is disposed below the material rack 11. The fixed seat 30 has a bottom plate 31, perforations 32, a front side plate 33, a back side plate 34, an end hole 35 and a side plate 36. The perforations 32 penetrate the top and bottom surfaces of the bottom plate 31. The front side plate 33 and the rear side plate 34 are separately connected to two short sides of the bottom plate 31. The end holes 35 are formed in the back side plate 34. The side plate 36 is connected to the long side of the bottom plate 31 and at the same time connected to the front side plate 33 and the rear side plate 34.

  The horizontal moving plate 40 has two guide portions 41 and two guide wheels 44. The two guide portions 41 are juxtaposed left and right, and each have an inclined groove 42. The two inclined grooves 42 obliquely extend from the upper left to the lower right of the guide portion 41, respectively. The right guide portion 41 further has an expansion portion 43. The extension portion 43 is formed to project outward from the guide portion 41 on the right side. The extension portion 43 penetrates the end hole 35 of the rear side plate 34 of the fixed seat 30 and is connected to an external power source, for example, a servomotor (not shown in the drawing). Can move from the fixed seat 30 to the right. The two guide rings 44 are disposed in the guide portion 41 so as to contact the bottom plate 31 of the fixed seat 30 in order to suppress the occurrence of wear between the two guide portions 41 and the bottom plate 31 of the fixed seat 30.

  The elevating seat 50 has a longitudinal plate 51, two transmission portions 52, a receiving plate 53, a plurality of support plates 54, and a plurality of plate-like push portions 55. The vertical plate 51 is located between the side plate 36 of the fixed seat 30 and the two guide portions 41 of the horizontal movement plate 40. Each of the two transmission parts 52 is composed of a roller positioned on the side surface facing the horizontal moving plate 40 on the vertical plate 51, and is slipped in and fitted to the inclined groove 42 of the guide part 41 of the horizontal moving plate 40. The receiving plate 53 has its left end connected to the vertical plate 51 by one supporting plate 54, the right end connected to the vertical plate 51 by two supporting plates 54, and the horizontal moving plate 40 housed between the vertical plate 51 and the same. There is a gap that can be made. The plurality of plate-like push parts 55 are connected to the top surface of the receiving plate 53 at a distance from each other. As shown in FIGS. 6 and 7, a plurality of plate-like push parts 55 are inserted into the opening grooves 12 of the material rack 11 one by one. In the present embodiment, the number of the plate-like push parts 55 is six, but it is not limited thereto.

  The holding member 60 has a lifting rod 61 and a weight 62. The lifting rod 61 is inserted into the bore 32 of the fixed seat 30, the tip end is connected to the receiving plate 53 of the lift seat 50, and the end is connected to the weight 62. The holding member 60 generates a force to lower the lift seat 50 by the weight 62.

  As shown in FIG. 3, before the horizontal movement plate 40 receives the driving force of the power source, the lift seat 50 is pulled downward by the holding member 60 and is maintained at the initial position P1. The transmission portion 52 of the lift seat 50 is located at the bottom of the inclined groove 42 of the horizontal movement plate 40. At this time, the plate-like push portion 55 of the lift seat 50 is not exposed to the top surface of the material rack 11 as shown in FIG.

  When moving the horizontal moving plate 40 to the right by the driving force of the power source, the horizontal moving plate 40 moves the transmission unit 52 of the lift seat 50 upward by the wall surface of the inclined groove 42 while moving to the right. The transmission part 52 of 50 operates along the inclined groove 42 of the horizontal moving plate 40 to raise the lift seat 50. As shown in FIG. 5, when the transmission portion 52 of the lift seat 50 reaches the top of the inclined groove 42 of the horizontal movement plate 40 to move the lift seat 50 to the raised position P2, as shown in FIG. Since the push portion 55 protrudes from the opening groove 12 of the material rack 11 to the material rack 11, the bar 15 is pushed away by the plate-like push portion 55 of the lift seat 50, and rolled from the material rack 11 to the material supply stand 13, Thereafter, it is fed to a mother machine (for example, a CNC lathe) by the push rod 14 and processed.

  After the work of supplying the single rod 15 is completed, the lift source 50 pulls down the lift seat 50 downward by the holding member 60 to release the force for driving the horizontal moving plate 40. That is, the elevator seat 50 restored to the original position pushes down the wall surface of the inclined groove 42 of the horizontal moving plate 40 by the transmission unit 52, and moves the horizontal moving plate 40 to the left. At this time, the transmission portion 52 of the lift seat 50 descends along the inclined groove 42 of the horizontal movement plate 40. As shown in FIG. 3, when the transmission part 52 of the lift seat 50 reaches the end of the inclined groove 42 of the horizontal movement plate 40 and the lift seat 50 is lowered to the initial position P1, the horizontal movement plate 40 is restored to the original position. . At this time, since the plate-like push portion 55 of the lift seat 50 enters the material rack 11, the new single rod 15 rolls along the inclined surface of the material rack 11, and the plate-like push portion 55 of the lift seat 50 Located above and proceed with the next material supply operation.

  In summary of the above-mentioned structural features, the lifting mechanism 20 of the bar feeder according to the present invention is simple in structure and quick in reaction speed as compared with the prior art employing a pneumatic cylinder, and in the event of breakage, Easy to replace or maintain.

10: Bar feeder,
11: Material rack,
12: Opening groove 13: Material supply stand 14: Push rod,
15: Bar,
20: Lifting mechanism 30: Fixed seat,
31: Bottom plate,
32: Perforation,
33: front plate,
34: back side plate,
35: end hole,
36: Side plate,
40: Horizontal moving plate,
41: Guide section,
42: Inclined groove,
43: Extension,
44: Guide wheel,
50: Lift seat,
51: Vertical plate,
52: Transmission unit,
53: Receiving plate,
54: support plate,
55: Plate-like push part,
60: Holding member,
61: hanging rod,
62: Weight,
P1: Initial position,
P2: Ascending position

Claims (6)

Used for a bar feeder with a material rack, equipped with a fixed seat, a horizontal movement plate, a lift seat and a holding member,
The fixed seat is disposed below the material rack,
The horizontal moving plate is disposed to be horizontally movable in the fixed seat, and has an inclined groove,
The elevating seat is disposed so as to be vertically movable to the fixed seat and has a transmission portion and a plate-like push portion, and the transmission portion is slipped and fitted in the inclined groove of the horizontal movement plate The lift seat can be moved from the initial position to the raised position by the driving force of the horizontal moving plate.
When the lift seat is set to the initial position, the plate-like push portion of the lift seat is not exposed on the top surface of the material rack, and when the lift seat is set to the raised position, the lift seat The plate-like push part protrudes on the top surface of the material rack,
The lifting mechanism of a bar feeder, wherein the holding member is disposed at the elevating seat and can hold the elevating seat at the initial position. The lift seat further comprises a longitudinal plate, a receiving plate and two supporting plates, the plate-like push part is disposed on the top surface of the receiving plate, and the receiving plate has the two longitudinal ends by the two supporting plates. Connected to the board,
The horizontal moving plate is disposed between the vertical plate and the receiving plate,
The bar feeder lifting mechanism according to claim 1, wherein the holding member is connected to the receiving plate. The fixed seat has a bottom plate and a perforation formed in the bottom plate,
The holding member has a hanging rod and a weight, and the hanging rod is inserted into the bore of the fixed seat, a tip is connected to the receiving plate of the lift seat, and a tip is connected to the weight The lifting mechanism of the bar feeder according to claim 2,   The bar feeder lifting mechanism according to claim 3, wherein the horizontal moving plate further has a guide ring at the bottom, and the guide ring contacts the bottom plate of the fixed seat while rolling. The fixed seat further has an end hole,
The horizontal moving plate further includes an expanding portion, and the expanding portion penetrates the end hole of the fixed seat, and a portion thereof protrudes to the fixed seat. Lifting mechanism of the bar feeder described in one. When the lift seat is set to the initial position, the transmission portion of the lift seat is located at an end of the inclined groove of the horizontal moving plate;
The lifting mechanism of the bar feeder according to claim 1, wherein the transmission portion of the lifting seat is positioned at the tip of the inclined groove of the horizontal moving plate when the lifting seat is placed in the raised position. .

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