An elastic band stacking machine

Abstract

The present invention provides an elastic band stacking machine. The elastic band stacking machine includes: a material receiving device, a sorting device, and a bundling device. The material receiving device is used to receive the elastic bands pushed out after being sewn by an elastic band machine, and suspend the elastic bands on the material receiving device. The sorting device is composed of a stacking device, a pressing device, and a sizing device. The single elastic bands conveyed by the material receiving device are sent to the stacking device, and are flattened by the wind force of the pressing device and sorted on both sides by the sizing device, so that the elastic bands continuously conveyed by the material receiving device are stacked neatly. The bundling device bundles the neatly stacked elastic bands. The above-mentioned elastic band stacking machine realizes the automated process of elastic band stacking, completing the entire process from the production to the sorting and storage of elastic bands in one step, without manual sorting. The seam positions of the stacked elastic bands are aligned, and if there are differences in length, they can be clearly distinguished, which brings convenience to the next step of elastic band assembly, improves production efficiency, and reduces labor costs.

Description

Technical Field

[0001] The present invention belongs to the field of elastic bands, and more specifically, it is an elastic band stacking machine for packaging elastic bands. Background Art

[0002] As a kind of clothing accessory, elastic bands are widely used in clothing products such as cuffs, hems, waists, and trouser waists of clothes. There are already relatively mature automatic elastic band splicing machines, which can cut according to the length of the required products and then sew the two ends of the elastic bands to form a circular elastic band. Currently, the sewn elastic bands directly fall onto the receiving rod under the automatic elastic band splicing machine to thread the elastic bands into a string, which is tied up manually with a rope, or falls into plastic bags or cartons for mixed packaging. If not sold or used for a long time, the elastic bands are prone to creasing and deformation, and it is very difficult to distinguish elastic bands of different sizes and brands stacked together, and the stacking space is also large, which will bring great difficulties to warehousing. When elastic bands of different lengths are mixed together, each one needs to be checked item by item during assembly and then used on trousers. It is easy to make mistakes in size when it is busy, which will bring a series of problems such as unnecessary rework and returns when inspected by customers. For some trousers, the sewing position of the elastic band is required to be at a specified position. Since the thread color of the sewing position is the same as the color of the elastic band, it often takes several rounds to find it, resulting in a longer assembly time. To avoid these problems, some manufacturers can only hire workers to collect and organize the elastic bands and bundle them into a certain number of units, which is rather troublesome and has low work efficiency. With the increasing labor cost year by year, the production cost of elastic bands also increases synchronously. Summary of the Invention

[0003] In view of the defects existing in the current packaging of elastic bands, the technical problem to be solved by the present invention is to provide an elastic band stacking machine dedicated to the collection and organization of elastic bands.

[0004] To achieve the above object, according to one aspect of the present invention, the present invention is implemented by the following technical measures: An elastic band stacking machine includes:

[0005] A receiving device for receiving the elastic bands pushed out after being sewn by the elastic band machine and suspending the elastic bands on the receiving device;

[0006] A sorting device composed of a stacking device, a pressing device, and a shaping device. The single elastic band conveyed by the receiving device is sent to the stacking device, and is blown and flattened by the pressing device and sorted on both sides by the shaping device, so that the elastic bands continuously conveyed by the receiving device are stacked neatly;

[0007] A bundling device for bundling the neatly stacked elastic bands.

[0008] This elastic band stacking machine enables the elastic bands conveyed by the elastic band machine for producing elastic bands to be packaged in bundles through the cooperation of a material receiving device, a sorting device, and a bundling device.

[0009] Further, the material receiving device is composed of a material receiving cylinder, a telescopic rod, an acceleration cylinder, and a stepping track. The telescopic rod is inserted into the material receiving cylinder, and the material receiving cylinder drives the telescopic rod to reciprocate. The material receiving cylinder is installed on the acceleration cylinder and is driven by the acceleration cylinder to move back and forth. The acceleration cylinder is installed on the track, and the stepping motor on the track drives the acceleration cylinder to move on the track. At the same time, the acceleration cylinder and the stepping motor are started simultaneously.

[0010] Further, the stepping track is replaced by a cylinder track.

[0011] The stacking device in the sorting device is composed of a material sorting tank, a front stacking rake, a front stacking rake horizontal cylinder, a front stacking rake vertical cylinder, a feeding cylinder, a rear stacking rake, a rear stacking rake horizontal cylinder, a rear stacking rake vertical cylinder, a stacking top plate, and a stacking top rod. The material sorting tank is U-shaped and is provided with an adjusting belt at the end. Both the front stacking rake and the rear stacking rake are L-shaped plates. The vertical part of the front stacking rake is fixed to the front stacking rake vertical cylinder, and the vertical part of the rear stacking rake is fixed to the rear stacking rake vertical cylinder, so that the front stacking rake vertical cylinder can drive the front stacking rake to move up and down, and the rear stacking rake vertical cylinder can drive the rear stacking rake to move up and down. The front stacking rake vertical cylinder is fixed to the front stacking rake horizontal cylinder, and the front stacking rake horizontal cylinder can drive the front stacking rake vertical cylinder to move left and right. The rear stacking rake vertical cylinder is fixed to the rear stacking rake horizontal cylinder, and the rear stacking rake horizontal cylinder can drive the rear stacking rake vertical cylinder to move left and right. The front stacking rake and the rear stacking rake are arranged oppositely. Under the control of the front stacking rake horizontal cylinder, the front stacking rake vertical cylinder, the rear stacking rake horizontal cylinder, and the rear stacking rake vertical cylinder, the horizontal parts of the front stacking rake and the rear stacking rake can be engaged with each other. The front stacking rake horizontal cylinder is fixed to the feeding cylinder, and the feeding cylinder drives the front stacking rake horizontal cylinder to move up and down. The stacking top rod is located below the center of the stacking top plate, and the two are in a T shape. The lower half of the stacking top rod is a spring structure, and the stacking top rod is fixed to the bottom of the equipment.

[0012] Further, the material pressing device in the sorting device is composed of a wind pressure cylinder and an air groove. The air groove is hollow inside, and there is an air inlet at each end of the top. The air inlets are connected with air pipes, and there are several air outlets at the bottom of the air inlets. The center of the top of the air groove is connected to the wind pressure cylinder, and the wind pressure cylinder drives the air groove to move up and down.

[0013] Further, the material arranging device in the arranging device consists of a material arranging brush and a material arranging air cylinder. The material arranging brush is fixed on the material arranging air cylinder, and the material arranging air cylinder drives the material arranging brush to move back and forth. There are two such material arranging devices, which are respectively arranged on both sides under the workbench of the material pressing device and are opposite to the horizontal openings of the U-shaped material arranging groove. The material arranging device is used to control the position of the elastic band in the length direction.

[0014] Further, the bundling device consists of a coil, a coil seat, a winding wheel, a shearer, a discharging rod, a discharging air cylinder, a front shaping plate, a front shaping plate air cylinder, a rear shaping plate and a base. The coil is movably fixed on the coil seat and can rotate around the coil seat. There is a rotatable disc in the middle of the winding wheel. The center of the disc is connected to the disc shaft. An inclined upward winding tube is provided on the disc surface. The winding tube communicates with the disc shaft. Both the winding tube and the disc shaft are hollow, and a protective cover is provided outside the disc. The shearer is provided with two hook knives, and the shearer can control the movement of the two hook knives respectively. At the same time, the wire provided on the coil passes through the disc shaft and the winding tube and is clamped by the two hook knives. The front shaping plate air cylinder is connected to the front shaping plate to control the up and down movement of the front shaping plate. The rear shaping plate is movably fixed on the base and can be adjusted and fixed in the front and back according to the width of the belt. The front shaping plate and the rear shaping plate are both located on both sides of the stacking ejector rod and are used to control the position of the elastic band in the width direction. A fixed shaft is provided on the base, and the fixed shaft passes through the discharging rod with a clearance fit. The lower end of the discharging rod is connected to the discharging air cylinder, and the discharging rod can rotate around the fixed shaft under the drive of the discharging air cylinder.

[0015] Compared with the prior art, the advantages of the present invention are as follows: It realizes the automated process of elastic band stacking, completing the entire process from the production to the arrangement and storage of the elastic band in one step, without manual arrangement. The seam positions of the stacked elastic bands are aligned, and the lengths can be clearly distinguished, which brings convenience to the next step of elastic band assembly, improves production efficiency, and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 It is an exploded view of the parts of an elastic band stacking machine according to the present invention.

[0018] Figure 2 It is a schematic structural diagram of the material receiving device according to the present invention.

[0019] Figure 3 It is a schematic structural diagram of the stacking device and the material arranging device according to the present invention.

[0020] Figure 4 It is a schematic structural diagram of the material pressing device according to the present invention.

[0021] Figure 5 This is a schematic structural diagram of the bundling device of the present invention.

[0022] Explanation of reference numerals: 1, material receiving device; 2, material stacking device; 3, material pressing device; 4, material aligning device; 5, bundling device; 6, stepping track; 7, speed increasing cylinder; 8, material receiving cylinder; 9, telescopic rod; 10, adjusting belt; 11, feeding cylinder; 12, material aligning groove; 13, front stacking rake horizontal cylinder; 14, rear stacking rake; 15, front stacking rake vertical cylinder; 16, front stacking rake; 17, stacking top plate; 18, stacking top rod; 19, rear stacking rake horizontal cylinder; 20, rear stacking rake vertical cylinder; 21, material aligning brush; 22, material aligning cylinder; 23, air pressure cylinder; 24, air groove; 25, air inlet hole; 26, base; 27, disc shaft; 28, shearer; 29, discharge rod; 30, rear shaping plate; 31, hook knife; 32, disc; 33, coil; 34, coil seat; 35, wire winding tube; 36, discharge cylinder; 37, front shaping plate; 38, front shaping plate cylinder; 39, fixed shaft; 40, protective cover. Detailed implementation manners

[0023] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0025] Embodiment 1

[0026] Please refer to Figure 1 , a stretch belt stacking machine provided in this embodiment is composed of a material receiving device 1, a material pressing device 3, a material stacking device 2, a material aligning device 4 and a bundling device 5. The material receiving device 1 and the material stacking device 2 are on the same horizontal plane. The material pressing device 3 is arranged above the material stacking device 2. The material aligning device 4 is arranged on the front and rear sides of the material stacking device 2. The bundling device 5 is located below the material stacking device 2.

[0027] Please refer to Figure 2, the above-mentioned material receiving device 1 is composed of a material receiving cylinder 8, a telescopic rod 9, a speed increasing cylinder 7, and a stepping track 6. The telescopic rod 9 is inserted into the material receiving cylinder 8, and the material receiving cylinder 8 can drive the telescopic rod 9 to stretch back and forth. The material receiving cylinder 8 is installed on the speed increasing cylinder 7, and the speed increasing cylinder 7 can drive the material receiving cylinder 8 to move left and right. The speed increasing cylinder 7 is installed on the stepping track 6, and the stepping motor on the stepping track 6 can drive the speed increasing cylinder 7 to move on the track. Of course, the above-mentioned stepping track 6 can also be replaced by a cylinder track.

[0028] Please refer to Figure 3 , the above-mentioned stacking device 2 is composed of a material sorting tank 12, a front stacking rake 16, a front stacking rake horizontal cylinder 13, a front stacking rake vertical cylinder 15, a feeding cylinder 11, a rear stacking rake 14, a rear stacking rake horizontal cylinder 19, a rear stacking rake vertical cylinder 20, a stacking top plate 17, and a stacking top rod 18. The above-mentioned material sorting tank 12 is a U-shaped part, and an adjustment belt 10 is fixed at the inner end. The above-mentioned front stacking rake 16 and rear stacking rake 14 are both L-shaped plates. The horizontal part of the L-shaped plate is a rake structure. The vertical part of the front stacking rake 16 is fixed to the front stacking rake vertical cylinder 15, and the vertical part of the rear stacking rake 14 is fixed to the rear stacking rake vertical cylinder 20, so that the front stacking rake vertical cylinder 15 can drive the front stacking rake 16 to move up and down, and the rear stacking rake vertical cylinder 20 can drive the rear stacking rake 14 to move up and down. The above-mentioned front stacking rake vertical cylinder 15 is fixed on the front stacking rake horizontal cylinder 13, and the front stacking rake horizontal cylinder 13 can drive the front stacking rake vertical cylinder 15 to move left and right. The rear stacking rake vertical cylinder 20 is fixed on the rear stacking rake horizontal cylinder 19, and the rear stacking rake horizontal cylinder 19 can drive the rear stacking rake vertical cylinder 20 to move left and right. The above-mentioned front stacking rake 16 and rear stacking rake 14 are arranged opposite to each other. Under the control of the front stacking rake horizontal cylinder 13, the front stacking rake vertical cylinder 15, the rear stacking rake horizontal cylinder 19, and the rear stacking rake vertical cylinder 20, the front stacking rake 16 and the rear stacking rake 14 can bite each other. The above-mentioned front stacking rake horizontal cylinder 13 is fixed on the feeding cylinder 11, and the feeding cylinder 11 can drive the front stacking rake horizontal cylinder 13 to move up and down. The above-mentioned stacking top rod 18 is located below the center of the stacking top plate 17, and the two are fixed in a T shape. The lower half of the stacking top rod 18 is a spring structure, and the stacking top rod 18 is fixed at the bottom of the equipment. The above-mentioned material sorting device 4 is composed of a material sorting brush 21 and a material sorting cylinder 22. The material sorting brush 21 is fixed on the material sorting cylinder 22, and the material sorting cylinder 22 can drive the material sorting brush 21 to move back and forth. There are two material sorting devices 4, which are respectively arranged on the front and rear sides below the material sorting tank 12. The material sorting device 4 controls the position of the elastic belt in the length direction.

[0029] Please refer to Figure 4, the above-mentioned blank holder device 3 is composed of a pneumatic cylinder 23 and an air groove 24. The inside of the air groove 24 is hollow. At both ends of the top of the air groove 24, an air inlet hole 25 is fixed respectively. The air inlet hole 25 is connected with a trachea. A number of air outlet holes are provided at the bottom of the air inlet hole 25. The center of the top of the air groove 24 is connected with the pneumatic cylinder 23, and the pneumatic cylinder 23 can drive the air groove 24 to move up and down.

[0030] Please refer to Figure 5 , the above-mentioned bundling device 5 is composed of a coil 33, a coil seat 34, a winding wheel 32, a shearer 28, a discharge rod 29, a discharge cylinder 36, a front shaping plate 37, a front shaping plate cylinder 38, a rear shaping plate 30 and a base 26. The above-mentioned coil 33 is movably fixed on the coil seat 34, and the coil 33 can rotate around the coil seat 34. A rotatable disc 32 is fixed in the middle of the winding wheel 32. The center of the disc 32 is connected with a disc shaft 27. An inclined upward winding tube 35 is fixed on the disc 32. The winding tube 35 is communicated with the disc shaft 27. Both the winding tube 35 and the disc shaft 27 are hollow, and a protective cover 40 is provided outside the disc 32. The above-mentioned shearer 28 is provided with two hook knives 31. The shearer 28 can control the independent movement of the two hook knives 31 respectively. The wire on the coil 33 passes through the disc shaft 27 and the winding tube 35 and is clamped by the two hook knives 31. The above-mentioned front shaping plate cylinder 38 is connected with the front shaping plate 37, and the front shaping plate cylinder 38 can control the up and down movement of the front shaping plate 37. The rear shaping plate 30 is fixed on the base 26 and can adjust the fixed position back and forth according to the width of the belt. The above-mentioned front shaping plate 37 and the rear shaping plate 30 are both located on the front and rear sides of the stacking ejector rod 18 and can control the position in the width direction of the elastic band. A fixed shaft 39 is provided on the above-mentioned base 26. The fixed shaft 39 passes through the discharge rod 29 with clearance fit. The lower end of the discharge rod 29 is connected with the discharge cylinder 36. Driven by the discharge cylinder 36, the discharge rod 29 can rotate a certain angle around the fixed shaft 39.

[0031] During use, after the upstream automatic elastic band sewing machine sews the elastic band, the feeding cylinder 8 drives the telescopic rod 9 to extend and hook the elastic band. The stepping motor starts and the speed increasing cylinder 7 starts at the same time, driving the elastic band to move forward at an accelerated speed. After reaching above the front stacking rake 16 at the opening of the sorting trough 12, it stops moving. The air outlet at the bottom of the air trough 24 blows air to generate wind pressure, causing the elastic band to lie flat on the front stacking rake 16. Then the telescopic rod 9 retracts, and the stepping motor and the speed increasing cylinder 7 start and return to the initial position. The setting of the adjusting belt 10 can adjust the hanging position of the elastic band according to the width of the elastic band, so that it is always suspended at the end of the telescopic rod 9, ensuring that the elastic band can accurately fall directly above the front stacking rake 16. The pressing device 3 descends, and the air trough 24 descends synchronously, and there is a gap between the air trough 24 and the elastic band to provide adjustment space for the elastic band. The sorting device 4 starts, and the sorting brushes 21 on both sides move closer to the middle, pushing the elastic band to the predetermined horizontal position, and then the sorting device 4 resets. The front stacking rake 16 is driven by the front stacking rake vertical cylinder 15 to press down on the rear stacking rake 14. The rear stacking rake 14 moves from below the front stacking rake 16 to above the front stacking rake 16 and presses down under the action of the rear stacking rake horizontal cylinder 19 and the rear stacking rake vertical cylinder 20. The front stacking rake 16 and the rear stacking rake 14 clamp the elastic band and at the same time fit with the lower stacking top plate 17. Then the front stacking rake 16 returns to the initial position under the action of the front stacking rake horizontal cylinder 13 and the front stacking rake vertical cylinder 15. At this time, the rear stacking rake 14 and the stacking top plate 17 clamp the elastic band. Of course, the actions of the front stacking rake 16 and the rear stacking rake 14 can be interchanged, that is, after the feeding device places the elastic band on the rear stacking rake 14, the subsequent actions start. The feeding device 1 and the stacking device 2 take the same time to complete one action. Repeating such movements, the elastic bands can be neatly stacked on the stacking top plate. Since the sewing position of the upstream automatic elastic band sewing machine and the feeding position of the feeding device 1 are fixed, the seam positions of the stacked elastic bands are also aligned. When the elastic bands are stacked to the set quantity, the rear stacking rake 14 withdraws, the feeding cylinder 11 starts, the front stacking rake 16 and the stacking ejector rod 18 move down to the lower bundling device 5. The winding wheel 32 rotates, and the wire is pulled out from the wire tube 35 and winds around both ends of the stacked elastic bands. After the winding is completed, the two hook knives 31 cut the wire and clamp the wire ends, waiting for the next winding action. After the bundling is completed, the front shaping plate cylinder 38 starts to drive the front shaping plate 37 to move down, and the discharging cylinder 36 starts to drive the discharging rod 29 to rotate. At this time, the bundled elastic bands are pushed out of the stacking machine, and then the front shaping plate cylinder 38 and the discharging cylinder 36 drive the front shaping plate 37 and the discharging rod 29 to reset.

[0032] The above elastic band stacking machine realizes the automated process of elastic band stacking, completing the entire process of elastic band from seam to finishing and storage in one step, without manual sorting. The seam positions of the stacked elastic bands are aligned, and the lengths can be clearly distinguished, eliminating the need to repeatedly search for the seam positions. This brings convenience to the next step of elastic band assembly, improves production efficiency, reduces labor costs, and the stacked elastic bands are also easier to store and stack, saving storage space.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An elastic band overlapping machine, characterized in that, Including: A material receiving device, which is used to receive the elastic band pushed out after sewing by the elastic band sewing machine, so that the elastic band is suspended on the material receiving device; A sorting device, which is composed of a stacking device, a material pressing device and a material aligning device. The single elastic band conveyed by the material receiving device is sent to the stacking device, and is blown and flattened by the material pressing device and sorted on both sides by the material aligning device, so that the elastic bands continuously conveyed by the material receiving device are stacked neatly. The stacking device is composed of a material aligning groove, a front stacking rake, a front stacking rake horizontal cylinder, a front stacking rake vertical cylinder, a feeding cylinder, a rear stacking rake, a rear stacking rake horizontal cylinder, a rear stacking rake vertical cylinder, a stacking top plate and a stacking top rod. The front stacking rake and the rear stacking rake are arranged oppositely. Under the control of the front stacking rake horizontal cylinder, the front stacking rake vertical cylinder, the rear stacking rake horizontal cylinder and the rear stacking rake vertical cylinder, the horizontal parts of the front stacking rake and the rear stacking rake can be engaged with each other. The front stacking rake horizontal cylinder is fixed on the feeding cylinder, and the feeding cylinder drives the front stacking rake horizontal cylinder to move up and down. The stacking top rod is located below the center of the stacking top plate, and the two are in a T shape. The lower half of the stacking top rod is a spring structure, and the stacking top rod is fixed at the bottom of the equipment; A bundling device, which bundles the neatly stacked elastic bands. The bundling device is composed of a coil, a coil seat, a winding wheel, a shearer, a discharging rod, a discharging cylinder, a front shaping plate, a front shaping plate cylinder, a rear shaping plate and a base. The coil is movably fixed on the coil seat and can rotate around the coil seat. There is a rotatable disc in the middle of the winding wheel. The center of the disc is connected to the disc shaft. An inclined upward winding tube is arranged on the disc surface, and the winding tube is communicated with the disc shaft. Both the winding tube and the disc shaft are hollow, and a protective cover is arranged outside the disc. There are two hook knives on the shearer, and the shearer can control the movement of the hook knives respectively. At the same time, the wire arranged on the coil passes through the disc shaft and the winding tube and is clamped by the two hook knives. The front shaping plate cylinder is connected to the front shaping plate to control the up and down movement of the front shaping plate. The rear shaping plate is movably fixed on the base and can be adjusted and fixed in the front and back according to the width of the belt. The front shaping plate and the rear shaping plate are both located on both sides of the stacking top rod to control the position of the elastic band in the width direction. A fixed shaft is arranged on the base, and the fixed shaft passes through the discharging rod with clearance fit. The lower end of the discharging rod is connected to the discharging cylinder, and the discharging rod can rotate around the fixed shaft under the drive of the discharging cylinder.

2. The elastic band stacking machine according to claim 1, characterized in that: The material receiving device is composed of a material receiving cylinder, a telescopic rod, a speed increasing cylinder and a stepping track. The telescopic rod is inserted into the material receiving cylinder, and the material receiving cylinder drives the telescopic rod to stretch back and forth. The material receiving cylinder is installed on the speed increasing cylinder and is driven by the speed increasing cylinder to move back and forth. The speed increasing cylinder is installed on the track, and the stepping motor on the track drives the speed increasing cylinder to move on the track. At the same time, the speed increasing cylinder and the stepping motor are started simultaneously.

3. The elastic tape stacking machine according to claim 2, characterized in that: The stepping track is replaced by a cylinder track.

4. The elastic band stacking machine according to claim 1, characterized in that: The whole material tank is U-shaped and is provided with an adjustment belt at the end. Both the front stacking rake and the rear stacking rake are L-shaped plates. The vertical part of the front stacking rake is fixed to the front stacking rake vertical cylinder, and the vertical part of the rear stacking rake is fixed to the rear stacking rake vertical cylinder, so that the front stacking rake vertical cylinder can drive the front stacking rake to move up and down, and the rear stacking rake vertical cylinder can drive the rear stacking rake to move up and down. The front stacking rake vertical cylinder is fixed on the front stacking rake horizontal cylinder, and the front stacking rake horizontal cylinder can drive the front stacking rake vertical cylinder to move left and right. The rear stacking rake vertical cylinder is fixed on the rear stacking rake horizontal cylinder, and the rear stacking rake horizontal cylinder can drive the rear stacking rake vertical cylinder to move left and right.

5. The elastic band overlapping machine according to claim 4, wherein: The pressing device in the sorting device consists of a wind pressure cylinder and an air groove. The inside of the air groove is hollow, and there is also an air inlet hole at each of the two ends of the top. The air inlet hole is connected with a trachea. There are several air outlet holes at the bottom of the air groove. The center of the top of the air groove is connected to the wind pressure cylinder, and the wind pressure cylinder drives the air groove to move up and down.

6. The elastic tape stacking machine according to claim 5, wherein: The sorting device in the sorting device consists of a sorting brush and a sorting cylinder. The sorting brush is fixed on the sorting cylinder, and the sorting cylinder drives the sorting brush to move back and forth. There are two sorting devices, which are respectively arranged on both sides below the material guiding groove of the pressing device and are opposite to the horizontal opening of the U-shaped material guiding groove. The sorting device is used to control the position of the elastic band in the length direction.

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