Unreeling device, short tail material receiving mechanism and short tail material receiving method
Technical Field
The invention relates to a short tail material receiving mechanism, in particular to a material receiving mechanism for unreeled materials.
Background
When the roll material (film, paper, self-adhesive, etc.) is automatically or manually lapped, more excess materials are connected outside the joint (such as the joint of the adhesive tape) of the old material, and the excess materials are several meters long when less than one meter. The adverse effect brought by the method is light, the printing ink of the printing machine is dipped by the residual materials and then is brought onto the printing plate or the transition roller, which is called a dirty plate phenomenon, or the residual materials drift in the oven and collide with the heating pipe to be burnt by the heating pipe, so that the printing plate is seriously damaged.
Thus, the shorter the remainder, the better, and such a very short remainder is often referred to as a "short tail". In the past, short tail automatic material receiving is highly expected by the market, but is not solved later.
Through patent search, chinese patent document CN 105459574B discloses a control method for cutting short tails, which has the disadvantages that a great amount of calculation and measurement are needed to calculate, detect and control the length of the processed residual materials in the internal instruction, but a scheme for solving the length of the residual materials at one time from the equipment mechanism is not provided, and the short tail length cannot be stabilized and controlled, and cannot reach a shorter value of the residual length.
In the field of full-automatic unreeling of a reel material without stopping, there are two unreeling modes generally, one is full-automatic pre-speed material receiving (pre-speed of a preparation material is synchronous with the linear speed of a host machine), and the other is full-automatic zero-speed material receiving (the moment of material receiving is relatively static speed, and the material receiving is matched with an upper material storage rack to achieve the unreeling and feeding function without stopping).
Disclosure of Invention
In view of the technical problems existing in the background art, the technical problems solved by the invention are to provide unreeling equipment which is convenient to operate and firm in lamination, and a short tail material receiving mechanism and a short tail material receiving method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme: short tail receiving mechanism of unreeling equipment, including cut-off knife device and pad sword device, its characterized in that: the cutter cushioning device comprises a first cushion plate and a second cushion plate, wherein the first cushion plate is arranged on a first bracket, the first cushion plate performs ejection and retraction actions on the first bracket, the second cushion plate is arranged on a second bracket, the second cushion plate performs ejection and retraction actions on the second bracket, the first cushion plate and the second cushion plate are matched and close to each other to be clamped at a lap joint position, clamping matching surfaces of the first cushion plate and the second cushion plate face to face at the lap joint position, and the clamping position during the close clamping is adjusted through the ejection and retraction actions of the first cushion plate and the ejection and retraction actions of the second cushion plate;
the knife-cushioning device comprises a material fixing device which is easy to pull and drop materials or a fixing and releasing device which is used for fixing and releasing the materials, and when the materials are fixed, the fixing and releasing device or the material fixing device respectively keeps the materials at the clamping matching surfaces of the first backing plate and the second backing plate;
the cutter device comprises a cutter, the cutter is arranged on one feeding side of the lap joint station, the cutter moves back and forth towards the lap joint station, the two sides of the cutter are provided with guide cutter separating devices, and the first base plate and the second base plate are respectively provided with a cutter cushioning part matched with the cutter.
The knife pad part is provided with a knife slot which is matched with the cutting knife.
The material guiding and separating device comprises a baffle plate or a partition strip or a guide roller or a guide rod which are arranged on the left side and the right side of the cutter, and the material guiding and separating device is arranged on the feeding side of the lap joint station.
The fixing and releasing device comprises an air hole connected with a negative pressure source; the clamping matching surfaces of the first backing plate and the second backing plate are respectively provided with the fixing device.
The material fixing device comprises an air hole connected with a negative pressure source, a self-suction rubber piece or a clamp used for clamping the edge of the stub bar; the material fixing devices are respectively arranged on the clamping matching surfaces of the first backing plate and the second backing plate.
The first support and the second support are respectively arranged on the frame in a reciprocating manner, and the first base plate and the second base plate are respectively driven by the first support and the second support to move between the lap joint station and the preparation station.
The cutter moves up and down, the first support and the second support are arranged on the left side and the right side of the cutter, the first support and the second support respectively conduct reciprocating overturning on the outer side of the material guiding cutter separating device, and the first base plate and the second base plate are respectively driven by the first support and the second support to move between the lap joint station and the preparation station.
The feeding side of overlap joint station is equipped with first guider and second guider, and the ejection of compact side of overlap joint station is equipped with third guider, and first guider includes first guide roller, and second guider includes the second guide roller, and first guide roller and second guide roller set up respectively in cut-off knife device both sides, and third guider includes the third guide roller.
Unreeling equipment comprises a first unreeling mechanism, a second unreeling mechanism, a short tail receiving mechanism and a storage rack, wherein the first unreeling mechanism comprises a first unreeling shaft, and the second unreeling mechanism comprises a second unreeling shaft, and is characterized in that: the first unreeling mechanism and the second unreeling mechanism are respectively connected with the short-tail material receiving mechanism, the short-tail material receiving mechanism is connected with the material storage rack, and the short-tail material receiving mechanism adopts the short-tail material receiving mechanism.
A short tail material receiving method of unreeling equipment is characterized in that when receiving materials, old materials at the receiving position stop being pulled, one side of a material head of new materials is fixed on a backing plate at the outer side of the new materials, double-sided adhesives are attached to the other side of the material head of the new materials, the new materials and the old materials are located at two sides of a cutting knife and enter a lap joint station, the backing plate at the outer side of the old materials and the backing plate at the outer side of the new materials are matched and clamped at the lap joint station in a closing mode, the new materials and the old materials are attached together through the double-sided adhesives, a cutting knife at the feeding side at the lap joint station advances and matched with the backing plate at the outer side of the old materials to cut off the old materials, the new materials and the old materials are attached together, the two backing plates are separated from each other, and the new materials fixed on the backing plates are pulled forwards after the new materials and the old materials are attached together.
The invention has the beneficial effects that the unreeling device receives materials in the two unreeling mechanisms through the short-tail receiving mechanism, and the short-tail receiving mechanism is convenient to operate and control, firm in fit, high in mechanization degree and free from complex detection and calculation. The short tail material receiving method is simple to operate and free of complex detection and calculation. The short tail material receiving mechanism and the short tail material receiving method can enable the short tail to be shorter through the change of the clamping position of the material when the two base plates are close to each other for clamping. Thus, the present invention has outstanding substantial features and significant advances over the prior art.
Drawings
The details and working principles of the embodiments and examples of the present invention are described below with reference to the drawings.
Fig. 1 is a schematic structural view of the unreeling device of the present invention.
Fig. 2 is a schematic structural view of a short tail stock receiving mechanism according to an embodiment, in which a new stock head is disposed on a second backing plate.
Fig. 3 is a schematic view showing a structure of another state of the short-tail stock receiving mechanism according to an embodiment, in which the first pad and the second pad are at the stock receiving station ready for starting stock receiving.
Fig. 4 is a schematic structural view showing another state of the short tail stock mechanism according to an embodiment, in which the first pad and the second pad are matched and clamped together.
Fig. 5 is a schematic view showing another state of the short tail stock mechanism according to an embodiment, in which a cutter advances to cut a material.
Fig. 6 is a schematic structural diagram showing another state of the short-tail stock receiving mechanism according to an embodiment, in which the stock receiving is completed, the first pad is separated from the second pad, and the first pad can be ready for new stock placement.
Detailed Description
Referring to the drawings, an unreeling device in this embodiment includes a first unreeling mechanism 31, a second unreeling mechanism 32, a short tail receiving mechanism 33 and a storage rack 34. The first unreeling mechanism 31 comprises a first unreeling shaft 35, the second unreeling mechanism 32 comprises a second unreeling shaft 35, the first unreeling mechanism 31 and the second unreeling mechanism 32 are respectively connected with the short-tail material receiving mechanism 33, the short-tail material receiving mechanism 33 is connected with the material storage frame 34, and the short-tail material receiving mechanism adopts the following short-tail material receiving mechanism. The first unreeling shaft and the second unreeling shaft are respectively provided with old materials and new materials, the first unreeling shaft and the second unreeling shaft are used for unreeling the coiled materials, when the old materials are unreeled, the new materials and the old materials are received through the short-tail receiving mechanism 33, continuous feeding is kept, the storage rack 34 is used for feeding forward in the receiving process, the materials behind the storage rack 34 are not pulled (the materials can be fixed through the clamping device, the old materials at the receiving position are stopped to be pulled during receiving), after receiving is completed, the new materials can be replaced on the first unreeling shaft, and when the materials on the second unreeling shaft are used up soon, the old materials and the new materials are received through the short-tail receiving mechanism again. The material receiving mode of the short tail material receiving mechanism is lap joint, and the new material and the old material have overlapping lap joint parts. The material storage rack is provided with a fixed roller group and a movable roller group, and is not described in detail in the prior art.
Wherein, the short tail receiving mechanism 33 of the unreeling device comprises a cutter device 1 and a cutter cushion device 2. The cutter cushioning device 2 comprises a first cushion plate 3 and a second cushion plate 4; the first base plate 3 is arranged on the first bracket 5, and the first base plate 3 and the first bracket 5 are in ejection and retraction, in this embodiment, a first cylinder is directly arranged between the first base plate 3 and the first bracket 5, the ejection and retraction of the first base plate are driven by the first cylinder, and a first motor and a first transmission device can be arranged between the first base plate and the first bracket to cooperatively drive the ejection and retraction of the first base plate; the second base plate 4 is arranged on the second bracket 6, and the second base plate 4 performs ejection and retraction actions on the second bracket 6, in this embodiment, a second cylinder is directly arranged between the second base plate and the second bracket, the ejection and retraction actions of the second base plate are driven by the second cylinder, and a second motor and a second driving device can also be arranged between the second base plate and the second bracket to cooperatively drive the ejection and retraction actions of the second base plate. The lap joint of new material and old material is carried out at the lap joint station, the first backing plate 3 and the second backing plate 4 are matched and close to be clamped at the lap joint station, the respective ejection and retraction of the first backing plate 3 and the second backing plate 4 are used for carrying out matched actions, the clamping matching surface 8 of the first backing plate and the clamping matching surface 9 of the second backing plate face to face at the lap joint station, and the new material and the old material between the first backing plate and the second backing plate can be close to be pressed (namely clamped) for carrying out lap joint of the new material and the old material. The clamping position when the two base plates are close to each other is adjusted through the ejection and retraction actions of the first base plate 3 and the ejection and retraction actions of the second base plate 4, and the position of the overlap surface of the new material and the old material can be adjusted by adjusting the clamping position so as to be matched with the cutter for cutting the short tail. The knife-cushioning device 2 further comprises a material fixing device which is easy to be pulled to remove materials or a fixing device which fixes and releases the materials, and when the materials are fixed, the fixing device or the material fixing device respectively keeps the materials at the clamping matching surfaces of the first cushion plate and the second cushion plate, so that when the materials are received, new materials are fixed at the clamping matching surfaces of the first cushion plate or the second cushion plate through the fixing device or the material fixing device, and the materials wait to be matched and close to and clamped with another cushion plate (namely the second cushion plate or the first cushion plate) on one side of the old materials, and the old materials between the first cushion plate and the second cushion plate at the lapping station are lapped with the new materials (double-sided tape is adopted for pasting in the embodiment). In this embodiment, the cutter device 1 includes a cutter 10, where the cutter 10 is disposed on a feeding side of the lapping station, the cutter 10 moves back and forth towards the lapping station, and the cutter is configured with a power source (such as an air cylinder or a motor) to drive the cutter to move back and forth, that is, the cutter moves forward and backward back and forth. The two sides of the cutter 10 are provided with a material guiding cutter separating device 11, and the material guiding cutter separating device 11 can be respectively matched with the first base plate 3 and the second base plate 4 to guide materials, so that old materials are transversely (or obliquely transversely) arranged on the advancing path of the cutter; if the new material is on the first base plate, the second base plate can guide the old material by matching with the material guiding and separating device when the old material is pressed and conveyed towards the first base plate, and the old material is transversely (or obliquely transversely) arranged on the advancing path of the cutting knife; if new materials are on the second base plate, the first base plate can guide the old materials by matching with the material guiding and separating device when the first base plate can press the old materials towards the second base plate, the old materials are transversely (or obliquely transversely) arranged on the advancing path of the cutting knife, and the material guiding and separating device is arranged on two sides of the cutting knife and can avoid the contact between the materials and the cutting knife edge before the cutting knife advances. The first pad 3 and the second pad 4 are respectively provided with a cutter portion 12 and a cutter portion 13 which are matched with the cutter 10, if a new material is on the first pad, the cutter 10 advances to be matched with the cutter portion 13 of the second pad (the clamping position is adjusted to one side of the cutter), if a new material is on the second pad, the cutter 10 advances to be matched with the cutter portion 12 of the first pad (the clamping position is adjusted to the other side of the cutter), and the clamping positions are adjusted to both sides of the cutter cutting position, so that the shorter the tailings (the residual materials) of the old material cut by keeping the clamping positions approximately close to the cutting position, the shorter the tailings can be in the range of a few centimeters (unit order) between the clamping positions and the cutting positions, and the shorter the tailings can be. The cutter grooves 12a and 13a are formed in the cutter pad parts, the cutter grooves are matched with the cutters, the cutters can enter the cutter grooves of the corresponding cutter pad parts to cut materials when advancing, the cutting effect is better, and the contact life of the cutters and other parts is longer.
The unreeling device receives materials (new materials and old materials) in the two unreeling mechanisms through the short-tail material receiving mechanism, and the short-tail material receiving mechanism is convenient to operate and control, firm in fit, high in mechanization degree and free of complex detection and calculation. The short tail can be shorter through the change of the clamping position of the materials when the first base plate and the second base plate are close to each other for clamping, the clamping position is adjusted back and forth at two sides of the cutter under the condition that the cutter is matched with the cutter pad part for cutting, the closer the clamping position is to the back and forth advancing position of the middle cutter (the advancing position is the cutting position), the shorter the short tail is, the shorter the material guiding cutter separating device is approximately close to the lap joint station, and the shorter the short tail is.
The material guiding and separating device 11 comprises a baffle plate or a partition strip or a guide roller or a guide rod which are arranged on the left side and the right side of the cutter, and the material guiding and separating device is positioned on the feeding side of the lap joint station. The partition boards are arranged on two sides of the cutter respectively, the cutter is protected on two sides of the cutter, the cutter moves forwards and backwards in the middle of the partition boards on two sides to reciprocate back and forth, the material guiding and separating device can guide materials in a matched mode, the cutter can be protected inside, and materials or operators are prevented from contacting the cutter edge during operation.
In this embodiment, fixing devices for fixing and releasing materials are arranged on the clamping matching surfaces 8 and 9 of the first backing plate 3 and the second backing plate 4, or material fixing devices which are easy to pull and release materials are arranged on the clamping matching surfaces 8 and 9 of the first backing plate 3 and the second backing plate 4. If the fixing and releasing device is adopted, in this embodiment, the fixing and releasing device includes an air hole connected with a negative pressure source, the air hole can suck and fix materials when the air hole can inhale, and the air hole can release materials when the air hole stops inhaling. If a material fixing device is used, in this embodiment, the material fixing device includes an air hole connected with a negative pressure source, or a self-priming rubber piece or a clip for clamping the edge of the stub bar; the material is fixed when the air holes suck air, and can overcome the air holes suck air and be pulled to be separated when the material is pulled; the self-suction rubber piece can suck materials, and when the materials are pulled, the materials can overcome the suction force to be pulled and separated; the clip grips the edge of the stub bar and can be pulled off the shelf against the gripping force as the material is pulled.
The first support 5 and the second support 6 are respectively arranged on the frame in a reciprocating manner, and the first base plate and the second base plate are respectively driven by the first support and the second support to move between the lap joint station and the preparation station, so that the preparation station is provided with two corresponding first base plates and second base plates respectively. The first and second brackets are also respectively connected with a holding device (such as a pneumatic ejector rod) for holding the first and second brackets at the lap joint station.
For example, the first bracket and the second bracket move linearly and reciprocally on the frame, and the lap joint station and the preparation station are also in a straight line. The linear reciprocating movement of the first bracket and the second bracket can be driven by an actuator (such as a cylinder or a motor, etc.), and also can be driven manually. And arranging the stub bars of the new material on the corresponding cutter cushioning devices at the preparation stations.
Referring to the drawings, in the drawings, the first support and the second support do not do linear reciprocating movement on a straight line, but do reciprocating overturning around corresponding rotating shafts respectively, specifically, the cutter is lifted and moved back and forth, the first support and the second support are arranged on the left side and the right side of the cutter, the first support and the second support do reciprocating overturning on the outer side of the material guiding cutter separating device, the first base plate and the second base plate are driven by the first support and the second support to move between the lap joint station and the preparation station respectively, the first support moves between the lap joint station and the preparation station on one side, and the second support moves between the lap joint station and the preparation station on the other side. The reciprocating overturning movement of the first bracket and the second bracket can be driven by an actuator (such as a cylinder or a motor, etc.), and also can be driven manually. And arranging the stub bars of the new material on the corresponding cutter cushioning devices at the preparation stations.
The feeding side of overlap joint station is equipped with first guider 14 and second guider 15, and the ejection of compact side of overlap joint station is equipped with third guider 16, and first guider includes first guide roller, and second guider includes the second guide roller, and first guide roller and second guide roller set up respectively in cut-off knife device both sides, and third guider includes the third guide roller. So that new and old materials can be arranged. As shown in the figure, if the first bracket and the second bracket adopt overturning, the first material guiding roller and the second material guiding roller can be directly used as corresponding rotating shafts of the first bracket 5 and the second bracket 6.
According to the short tail material receiving method of the unreeling device, when receiving materials, old materials at the material receiving position are stopped to be pulled, one side of a material head of new materials is fixed on a backing plate at the outer side of the new materials, double-sided adhesives 20 are attached to the other side of the material head of the new materials, the new materials and the old materials are located at two sides of a cutting knife and enter a lap joint station, the backing plate at the outer side of the old materials and the backing plate at the outer side of the new materials are matched and clamped at the lap joint station in a close mode, the new materials and the old materials are attached together through the double-sided adhesives, the cutting knife at the feeding side at the lap joint station advances to be matched with the backing plate at the outer side of the old materials to cut off the old materials, the new materials and the old materials are attached together, the two backing plates are separated from each other, and the new materials fixed on the backing plate are pulled forwards after the new materials and the old materials are attached together.
Referring to the attached drawings, the working principle of the unreeling device and the short tail material receiving mechanism and the material receiving method thereof is that old materials are arranged on a first unreeling shaft and pass through the left side of a cutter and enter a lap joint station, and finally enter a material storage frame, new materials are placed on the second unreeling shaft, a second support where a second base plate is located is turned down, one side of a material head of the new materials is fixed on a second base plate on the right side, double-sided adhesive tape is attached to the other side of the material head, when the old materials are about to run out, the old materials at the material receiving position are stopped to be pulled when the old materials are about to run out, the old materials at the material receiving side of the lap joint station can be fixed, materials in a material storage frame are fed out for use by a host machine connected with the unreeling device, the second support is turned upwards, the second base plate is located at the lap joint station, the second base plate is matched and clamped with the first base plate already located at the lap joint station, the old materials and the new materials are overlapped with the second base plate through the double-sided adhesive tape, the first base plate and the second base plate are matched with the second base plate to enable the clamping position of the second base plate to be located at the left side of the cutter, the cutter is cut, and the old materials are separated from the second base plate after the first base plate and the new materials are pulled forward from the base plate and fed into the material storage frame; after receiving, the first unreeling shaft is replaced by new material, and the new material head is fixed on the first backing plate with the first bracket turned downwards and waits for receiving next time.