Gluing mechanism in a leather pull-tab packaging machine

Abstract

The present invention provides a gluing mechanism in a leather pull-tab packaging machine, which belongs to the field of mechanical technology and improves the gluing effect of leather pull-tabs. The gluing mechanism in the leather pull-tab packaging machine includes a frame, which is characterized in that the gluing mechanism includes a gluing roller group, and the gluing roller group includes an inner roller and an outer roller, the inner roller is rotatably arranged in the outer roller, and a gluing cavity is formed between the inner roller and the outer roller, the top of the outer roller is provided with a pull-tab inlet connected to the gluing cavity, the bottom of the outer roller is provided with a pull-tab outlet connected to the gluing cavity, a pull-tab box is fixed on the top of the outer roller, the pull-tab outlet is connected to the input end of the vibrating feed plate through a transition track, the inner cavity of the inner roller is a glue storage cavity, and the roller surface of the inner roller is provided with densely and evenly distributed overflow holes connecting the inner and outer cavities of the inner roller, and the inner wall of the inner roller is bonded with a gauze layer along its circumference. The present invention has the advantages of uniform gluing, etc.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology and relates to a leather pull-tab packaging machine, in particular to a glue coating mechanism in the leather pull-tab packaging machine. Background Art

[0002] A zipper is a connector that connects or separates items by means of continuously arranged chain teeth. It is now widely used in clothing, bags, tents, etc. Although the structure of a zipper is simple, its technical content is not low at all. There is a saying in the industry that "airplanes are made in the sky, and zippers are made on the ground", which shows its high technical content. The pull tab is one of the accessories in the zipper, which is connected to the zipper pull head. The user pinches the pull tab with his fingers and pulls the pull head to make the two chain teeth mesh or separate with each other. The materials of the pull tab are commonly metal and leather. The metal pull tab has a hole at one end, and the slider has a buckle. The metal pull tab is connected to the buckle on the slider through the hole, so that the metal pull tab is connected to the slider. The leather pull tab is made of leather and cannot be directly fixed to the slider. It needs a pull ring to connect with the buckle of the slider. One end of the pull ring usually has a square hole and the other end has a round hole. The leather pull tab is connected to the pull ring through the square hole, and the pull ring is connected to the buckle on the slider through the round hole, so that the leather pull tab is connected to the slider. The leather pull tab is in the shape of a long strip. The method of connecting with the pull ring is to first apply glue to the rough surface of the leather pull tab, then pass one end of the leather pull tab through the square hole of the pull ring, and then fold the leather pull tab in half so that the two ends of the leather pull tab are aligned with each other, and then fit the rough surface coated with glue after folding, so that the leather pull tab is glued and fixed after folding, and connected with the pull ring.

[0003] At present, the gluing method of leather pull tabs is usually to use a glue roller for gluing, that is, the glue roller is adhered with glue, and the leather pull tab passes through the glue roller and is adhered with glue to achieve the purpose of gluing. The defects of this method are poor uniformity of gluing and difficulty in controlling the amount of glue applied. Sometimes too little glue is applied, which affects the reliability of gluing. If too much glue is applied, the leather pull tab will overflow from the gap after being folded and pasted, dirtying the leather pull tab, affecting the aesthetics, and is not conducive to the drying speed of the glue after the leather pull tab is pasted, affecting productivity, and the gluing effect is not good. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems in the prior art and to propose a gluing mechanism in a leather pull tab packaging machine to solve the problems in the background technology and improve the gluing effect of the leather pull tab.

[0005] The purpose of the present invention can be achieved through the following technical solutions: a gluing mechanism in a leather pull-tab packaging machine, the leather pull-tab packaging machine includes a frame, a linear vibrating feeder for conveying leather pull-tabs is arranged on the frame, the linear vibrating feeder includes a vibrating feeding plate horizontally placed on the frame, the gluing mechanism glues the leather pull-tabs and conveys them to the input end of the vibrating feeding plate, characterized in that the gluing mechanism includes a gluing roller group, the gluing roller group includes an inner roller and an outer roller, the outer roller is fixed to the frame, the inner roller is rotatably arranged in the outer roller, the inner roller is connected to a rotating mechanism that can make it rotate, a gluing cavity is formed between the inner roller and the outer roller, and the top of the outer roller is opened There is a pull-tab inlet connected to the glue coating cavity, a pull-tab outlet connected to the glue coating cavity is opened at the bottom of the outer roller, a pull-tab box is fixed on the top of the outer roller, the bottom plate of the pull-tab box is inclined, a pull-tab outlet is opened at the bottom end of the bottom plate, the pull-tab outlet is connected to the pull-tab inlet, the pull-tab outlet is connected to the input end of the vibrating feed plate through a transition track, one end of the transition track is tangentially connected to the roller surface of the outer roller at the pull-tab outlet, and the other end is connected to the input end of the vibrating feed plate, the inner cavity of the inner roller is a glue storage cavity, the roller surface of the inner roller is provided with densely and evenly distributed glue overflow holes connecting the inner and outer cavities of the inner roller, and the inner wall of the inner roller is fitted with a gauze layer along its circumference.

[0006] A glue inlet nozzle connected to the inner cavity of the inner roller is fixed on one side, and a glue outlet nozzle connected to the inner cavity of the inner roller is fixed on the other side. The glue inlet nozzle and the glue outlet nozzle are connected to a glue supply circulation mechanism. The glue supply circulation mechanism includes a glue storage barrel, a circulation pump and a pressure gauge. The glue storage barrel, the circulation pump, the pressure gauge and the glue inlet nozzle are connected in sequence through a glue delivery pipe, and the glue outlet nozzle of the inner roller is connected to the glue storage barrel through the glue delivery pipe.

[0007] The side wall of the outer roller is provided with a glue drying device, which includes a hot air blower and an air guide hood connected to the air outlet of the hot air blower. The body of the hot air blower is fixed to the side wall of the outer roller through a bracket, and the air outlet of the air guide hood faces the transition track.

[0008] The gauze layer is fixed to the inner wall of the roller surface of the inner roller along its circumferential direction through an elastic clamp ring, and the elastic clamp ring is in an open ring shape, and has mesh holes penetrating the inner ring surface and the outer ring surface.

[0009] A pull-tab lead-out plate is arranged at the pull-tab outlet, one end of the pull-tab lead-out plate is fixed to the inner wall of the outer roller, and the other end thereof is in contact with the outer wall of the inner roller.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] 1. The gluing mechanism of the present invention has a relatively closed structure, which reduces the volatilization of the odor of the glue, improves the working environment, and reduces the impact on the health of workers.

[0012] 2. In the present invention, after the leather pull tab is glued by the glue coating mechanism, the glue coated on the leather pull tab is semi-dried by the drying device, which is beneficial to the speed of gluing the leather pull tab after folding, improves the efficiency, prevents the glue from overflowing from the gap after gluing, and also improves the gluing strength.

[0013] 3. The glue supply circulation mechanism of the present invention accurately controls the glue output from the glue overflow hole of the inner roller through its circulation pump, pressure gauge and gauze layer, and has the advantages of controllable glue coating amount and uniform glue coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall layout structure of the pull-tab packaging machine of the present invention.

[0015] Figure 2 It is a schematic structural diagram of a vibrating feeding plate in a pull-tab packaging machine of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the clamping and pulling mechanism in the pull-tab packaging machine of the present invention.

[0017] Figure 4 It is a structural schematic diagram of a vibration plate in a pull-tab packaging machine of the present invention.

[0018] Figure 5 It is a structural schematic diagram of the arrangement of pull rings on a linear feeding track in the pull-tab packaging machine of the present invention.

[0019] Figure 6 The present invention is a schematic structural diagram of a pull ring guide rod and a pull ring guide plate in a pull-tab packaging machine.

[0020] Figure 7 It is a schematic diagram of the structure of the inner roller in the gluing mechanism of the present invention.

[0021] Figure 8 It is a schematic cross-sectional structural diagram of the inner roller in the gluing mechanism of the present invention.

[0022] Fig. 9 It is a structural schematic diagram of the elastic clamp ring in the glue coating mechanism of the present invention.

[0023] Fig.10 It is a structural schematic diagram of a material guide hopper in a pull-tab packaging machine of the present invention.

[0024] Fig.11 It is a schematic diagram of the leather pull tab and pull ring package.

[0025] In the figure, 1, frame; 2, vibrating feeding plate; 3, limit strip; 4, pull ring seat hole; 5a, left clamping plate; 5b, right clamping plate; 6, baffle; 7, finger cylinder one; 8, telescopic cylinder one; 9, finger cylinder two; 10, telescopic cylinder two; 11, rotating block; 12, rotating cylinder; 13, guide hopper; 13a, extension plate; 13b, guide plate; 14, vibrating plate; 14a, storage plate; 14b, spiral feeding track; 15, linear feeding track; 16, pull ring guide rod; 16a, guide end; 17, pull ring guide plate; 18, correction track one; 19, correction track two; 20, inner roller; 20a, glue storage cavity; 20b, overflow hole; 21, outer roller Cylinder; 22, glue coating chamber; 23, pull-tab inlet; 24, pull-tab outlet; 25, pull-tab box; 26, transition track; 27, mesh layer; 28, glue inlet nozzle; 29, glue storage barrel; 30, circulation pump; 31, pressure gauge; 32, hot air blower; 33, air guide hood; 34, guide track one; 35, guide track two; 36, pressure roller one; 37, pressure roller two; 38, dovetail slide; 39, locking screw; 40, push cylinder; 41, ejector pin; 42, compression spring one; 43, compression spring two; 44, elastic clamp ring; 44a, mesh; 45, pull-tab lead-out plate; 46, clamp finger cylinder one; 47, clamp finger cylinder two; 48, driven pulley; 49, rotary joint. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a gluing mechanism in a leather pull-tab packaging machine, the leather pull-tab packaging machine includes a frame 1, a linear vibrating feeder for conveying leather pull-tabs is arranged on the frame 1, the linear vibrating feeder includes a vibrating feeding plate 2 horizontally placed on the frame 1, a limit strip 3 is arranged on the top surface of the vibrating feeding plate 2, a pull ring seat hole 4 penetrating the top and bottom of the vibrating feeding plate 2 is opened in the middle of the vibrating feeding plate 2, a clamping plate is arranged in the pull ring seat hole 4, a vertical clamping channel is formed between the clamping plates, a baffle 6 is horizontally arranged below the clamping plate, the baffle 6 is connected to a driving mechanism 1 that can make it move back and forth laterally, a clamping and pulling mechanism is arranged below the baffle 6, and the clamping and pulling mechanism includes a finger cylinder 1 7, a telescopic cylinder 1 8, a finger cylinder 2 9 and a telescopic cylinder Cylinder 2 10, the piston rod of telescopic cylinder 18 is fixedly connected to the cylinder body of finger cylinder 17, the cylinder body of telescopic cylinder 2 10 is connected to the cylinder body of finger cylinder 2 9, telescopic cylinder 18 and telescopic cylinder 2 10 are symmetrically fixed on a rotating block 11, the rotating block 11 is connected to a rotating cylinder 12 that can rotate it, a guide hopper 13 is arranged above the pull ring seat hole 4, the top of the guide hopper 13 is connected to a pull ring feeding mechanism that can arrange the pull rings one by one and transport them into the guide hopper 13, and a pushing mechanism for pushing the pull rings in the guide hopper 13 into the clamping channel of the clamping plate is arranged above the guide hopper 13, and the input end of the vibrating feed plate 2 is connected to a gluing mechanism that glues the leather pull piece and transports it to the vibrating feed plate 2.

[0028] Here’s how it works: Fig.11The schematic diagram of the package of the leather pull tab 51 and the pull ring 50 is illustrated. The pull ring 50 is square and has a square hole 50a and a round hole 50b. In actual applications, the square hole is not limited to a square hole, but can also be a slender olive-shaped hole. As long as the leather pull tab can pass through the hole, it is suitable for the application of the present invention. Similarly, the round hole is not limited to a perfect circle hole, but can also be an elliptical hole. As long as it can be connected to the buckle of the slider through the hole, it is suitable for the application of the present invention. The pull ring feeding mechanism arranges the pull rings and conveys them into the guide hopper 13, and the pushing mechanism above the guide hopper 13 pushes the pull rings in the guide hopper 13 into the clamping channel of the clamping plate, and the bottom end of the pull ring in the clamping channel abuts against the baffle 6 below the clamping channel, so that the pull ring stays in the clamping channel, so that the square hole part of the pull ring is exposed to the top surface of the vibrating feeding plate 2, and the glue coating mechanism applies glue to the rough surface of the leather pull piece, with the smooth surface facing down and the rough surface facing up to the input end of the vibrating feeding plate 2. The linear vibrating feeder also includes a linear vibration motor arranged at the bottom of the vibrating feeding plate 2, and the leather pull piece on the vibrating feeding plate 2 is conveyed toward the pull ring seat hole 4. When passing above the pull ring seat hole 4, one end of the leather pull piece passes through the square hole of the pull ring until it conflicts with the limit strip 3 arranged on the top surface of the vibrating feeding plate 2, and the leather pull piece stops moving forward. At this time, the driving mechanism will The baffle 6 is pulled away from the bottom of the pull ring. The driving mechanism includes a cylinder, and the piston rod of the cylinder is connected to the baffle 6. Because the leather pull tab is inserted into the square hole of the pull ring, the pull ring is suspended by the leather pull tab and does not fall. The telescopic cylinder 8 in the clamping and pulling mechanism extends out, and the bottom end of the pull ring is clamped by the finger cylinder 7. The telescopic cylinder 8 contracts, the pull ring is pulled downward, and the leather pull tab is pulled downward from the clamping channel. Under the squeezing effect of the clamping plate, the leather pull tab is folded in half and glued together, and then the cylinder 12 is rotated to rotate the rotating block 11 180 degrees. The finger cylinder 7 releases the pull ring that has been packaged with the leather pull tab, and the pull ring falls into the collection bucket placed at the bottom of the frame 1 for collection. At this time, the finger cylinder 2 9 and the telescopic cylinder 2 10 are in the upper position of the rotating block 11, and perform the same actions as the finger cylinder 7 and the telescopic cylinder 8 to package the next leather pull tab.

[0029] The pull ring feeding mechanism includes a vibration plate 14, the vibration plate 14 includes a storage plate 14a and a spiral feeding track 14b, the top of the spiral feeding track 14b is connected to a linear feeding track 15, the pull ring feeding mechanism also includes an inclined pull ring guide rod 16 and a pull ring guide plate 17 inclined below the pull ring guide rod 16, the top of the pull ring guide rod 16 has a vertically arranged guide end 16a, and the guide end 16a is connected to the pull ring guide rod 16 in a smooth transition arc, such as Fig.10As shown, an extension plate 13a is vertically fixed upward on one side of the top opening of the guide hopper 13, and a guide plate 13b is obliquely fixedly connected to the other side of the top opening of the guide hopper 13. The bottom end of the pull ring guide rod 16 is close to the extension plate 13a, and the top end of the pull ring guide rod 16 is close to directly below the end of the linear feed track 15. The bottom end of the pull ring guide plate 17 is connected to the guide plate 13b, and a correction track 18 and a correction track 2 19 are fixed on the top surface of the pull ring guide plate 17. The bottom sections of the correction track 18 and the correction track 2 19 are straight line sections parallel to each other, and the top ends are arc ends separated from each other in a flared shape, and a pull ring correction channel is formed between the correction track 18 and the correction track 2 19. The pull rings stacked in the storage tray 14a of the vibrating tray 14 are transported to the linear feed track 15 via the spiral feed track 14b under the vibrating feeding action of the vibrating tray 14, as shown in FIG. Figure 5 As shown, during the vibration feeding process, the pull ring may be in the four positions A, B, C, and D listed in the figure, or in any intermediate position between A and B, between B and C, between C and D, or between D and A. When it is transported to the end of the linear feeding track 15 and begins to tilt down, as shown in E in the figure, the square hole of the pull ring will be inserted into the guide end 16a at the top of the pull ring guide rod 16, and slide down along the arc smooth connection between the guide end 16a and the pull ring guide rod 16. Because the position of the square hole of the pull ring deviates from the center of the pull ring, the weight of the end of the pull ring with the round hole is heavier than the other end. Therefore, during the sliding process of the pull ring at the smooth arc transition, under the action of gravity, the end with the round hole will face downward. As it continues to slide down, the lower end of the pull ring collides with the pull ring guide plate 17. The first collision may be a certain end angle of the lower end of the pull ring, making the pull ring in a tilted state, as shown in FIG. Figure 6The end foot a of the pull ring in the middle of the pull ring contacts the pull ring guide plate 17, and the end foot b is suspended. At this time, the lower end of the pull ring is in the bell mouth of the arc end of the correction track 18 and the correction track 2 19. As the pull ring continues to slide down, the pull ring further approaches the pull ring guide plate 13b, so that the suspended end foot b of the pull ring gradually approaches the top surface of the pull ring guide plate 13b. At the same time, under the action of the contraction trajectory of the bell mouth of the arc end of the correction track 18 and the correction track 2 19, the correction track 18 and the correction track 2 19 play a guiding role. The action causes the pull ring to gradually straighten left and right, so that the suspended end foot b contacts the top surface of the pull ring guide plate 13b. At this time, both the end foot a and the end foot b contact the top surface of the pull ring guide plate 17. As the pull ring continues to slide down to the straight section of the pull ring guide rod 16, the lower end of the pull ring is restricted between the straight sections of the correction track 18 and the correction track 2 19. Multiple pull rings are arranged one by one, and the frontmost pull ring enters the guide hopper 13 first, and the subsequent pull rings enter the guide hopper 13 one by one when the front pull ring falls from the guide hopper 13. In this embodiment, the fixing method of the pull ring guide rod 16 adopts a method in which the finger clamping cylinder 1 46 and the finger clamping cylinder 2 47 alternately clamp and fix the pull ring guide rod 16. The finger clamping cylinder 1 46 and the finger clamping cylinder 2 47 are both connected to a cylinder, and the cylinder body of the cylinder is fixed to the frame 1 through a bracket. The cylinder causes the finger clamping cylinder 1 46 to descend, and the clamping fingers of the finger clamping cylinder 1 46 clamp the pull ring guide rod 16 to clamp and fix it. At this time, the pull rings inserted into the pull ring guide rod 16 are gathered together and clamped by the finger clamping cylinder 1 4 6 is blocked, and then the finger-clamping cylinder 2 47 is moved downward by the action of the cylinder connected to it, clamping the pull-ring guide rod 16 to fix it, and then the finger-clamping cylinder 1 46 releases the pull-ring guide rod 16 and rises, and the pull-ring blocked by it continues to slide down along the pull-ring guide rod 16, and the finger-clamping cylinder 1 46 and the finger-clamping cylinder 2 47 repeat this action, and the pull-ring continuously passes through the pull-ring guide rod 16. In order to improve the stability of clamping, the clamping surfaces of the finger-clamping cylinder 1 46 and the finger-clamping cylinder 2 47 are affixed with anti-slip rubber pads.

[0030] like Figure 7 and Figure 8As shown, the gluing mechanism includes a gluing roller group, which includes an inner roller 20 and an outer roller 21. The outer roller 21 is fixed to the frame 1, and the inner roller 20 is rotatably arranged in the outer roller 21. The inner roller 20 is connected to a rotating mechanism that can rotate it. A gluing cavity 22 is formed between the inner roller 20 and the outer roller 21. A pull-tab inlet 23 connected to the gluing cavity 22 is opened on the top of the outer roller 21, and a pull-tab outlet 24 connected to the gluing cavity 22 is opened on the bottom of the outer roller 21. A pull-tab box 25 is fixed on the top of the outer roller 21, and the bottom plate of the pull-tab box 25 is inclined. The bottom end of the bottom plate is provided with a pull-tab outlet, the pull-tab outlet is connected with the pull-tab inlet 23, the pull-tab outlet 24 is connected with the input end of the vibrating feed plate 2 through a transition track 26, one end of the transition track 26 is tangentially connected to the roller surface of the outer roller 21 at the pull-tab outlet 24, and the other end is connected to the input end of the vibrating feed plate 2, the inner cavity of the inner roller 20 is a glue storage cavity 20a, the roller surface of the inner roller 20 is provided with densely and evenly distributed glue overflow holes 20b connecting the inner and outer cavities of the inner roller 20, and the inner wall of the inner roller 20 is adhered with a mesh layer 27 along its circumference. The leather pull tabs to be coated with glue are stacked in the pull tab box 25, with the rough glue-coated surface of the leather pull tab facing downward and the smooth surface facing upward. The lower end of the leather pull tab on the bottom layer extends into the pull tab inlet 23 and contacts with the inner roller 20. The glue in the glue storage cavity 20a of the inner roller 20 overflows to the outer cylindrical surface of the inner roller 20 through the overflow hole 20b. The inner wall of the inner roller 20 is attached with a gauze layer 27, and the amount of glue overflowing from the overflow hole 20b can be adjusted by setting the number of layers of the gauze layer 27. In this embodiment, the gauze layer 27 is formed by stacking gauze, and can also be formed by stacking plastic mesh. The inner roller 20 rotates counterclockwise under the action of the rotating mechanism, and the leather pull tab at the pull tab inlet 23 is dragged into the glue coating cavity 22, and then comes out from the pull tab outlet 24, and is transported to the vibrating feed plate 2 via the transition track 26.

[0031] A glue inlet nozzle 28 connected to its inner cavity is fixed on one side of the inner roller 20, and a glue outlet nozzle connected to its inner cavity is fixed on the other side. The glue inlet nozzle 28 and the glue outlet nozzle are connected to a glue supply circulation mechanism. The glue supply circulation mechanism includes a glue storage barrel 29, a circulation pump 30 and a pressure gauge 31. The glue storage barrel 29, the circulation pump 30, the pressure gauge 31 and the glue inlet nozzle 28 are connected in sequence through a glue delivery pipe, and the glue outlet nozzle of the inner roller 20 is connected to the glue storage barrel 29 through a glue delivery pipe. Glue is stored in the glue storage barrel 29. The circulation pump 30 replenishes the glue in the glue storage barrel 29 into the glue storage cavity 20a of the inner roller 20, and then returns to the glue storage barrel 29 to form a glue circulation. The pressure gauge 31 measures the glue pressure applied by the circulation pump 30 to control the amount of glue overflowing from the glue overflow hole 20b. When the amount of glue applied to the leather pull tab coming out of the pull tab outlet 24 is too much, the glue pressure applied by the circulation pump 30 is reduced to reduce the amount of glue overflowing from the glue overflow hole 20b. Conversely, the glue pressure applied by the circulation pump 30 is increased to increase the amount of glue overflowing from the glue overflow hole 20b. In this embodiment, the glue inlet nozzle 28 and the glue outlet nozzle are made of pipe fittings. The glue inlet nozzle 28 and the glue outlet nozzle pass through the two side walls of the outer roller 21 and are fixed by bearings. The rotating mechanism includes a driving motor (not shown in the figure). The glue inlet nozzle 28 extending out of the outer roller 21 is sleeved and fixed with a driven pulley 48. The driving motor is fixed on the frame 1. A driving pulley is fixed on the output shaft of the driving motor. The driving motor rotates the inner roller 20 through a transmission belt. The glue inlet nozzle 28 is connected to a rotary joint 49, and the rotary joint 49 is connected to the pressure gauge 31 through a rubber delivery hose to prevent the rubber delivery hose from being entangled when the glue inlet nozzle 28 rotates.

[0032] The side wall of the outer roller 21 is provided with a glue coating and drying device, which includes a hot air blower 32 and an air guide hood 33 connected to the air outlet of the hot air blower 32. The body of the hot air blower 32 is fixed to the side wall of the outer roller 21 through a bracket, and the air outlet of the air guide hood 33 faces the transition track 26. The glue coated on the leather pull tab is semi-dried by the drying device, which is beneficial to the speed of gluing the leather pull tab after folding, improving efficiency, and preventing the glue from overflowing from the gap after gluing, and also improving the gluing strength.

[0033] The top surface of the vibrating feed plate 2 is fixed with a guide track 1 34 and a guide track 2 35 which are parallel to each other along the length direction, a guide channel is formed between the guide track 1 34 and the guide track 2 35, the input ends of the guide track 1 34 and the guide track 2 35 (the end connected to the transition track 26) are in a trumpet shape separated from each other, and a pressure roller 1 36 and a pressure roller 2 37 are arranged above the vibrating feed plate 2, the pressure roller 1 36 is connected to a driving mechanism 1 which can make it abut against or away from the top surface of the vibrating feed plate 2, and the pressure roller 2 37 is connected to a driving mechanism 2 which can make it abut against or away from the top surface of the vibrating feed plate 2, when the pressure roller 1 36 abuts against the vibrating feed plate 2 When the pressure roller 1 36 is close to one side of the pull ring seat hole 4 and is located between the guide track 1 34 and the guide track 2 35, when the pressure roller 2 37 is in contact with the vibrating feed plate 2, the pressure roller 2 37 is close to the other side of the pull ring seat hole 4 and is located between the guide track 1 34 and the guide track 2 35, the limit strip 3 is slidable along the length direction of the vibrating feed plate 2 and can be positioned on the top surface of the vibrating feed plate 2, the top surface of the vibrating feed plate 2 is provided with a dovetail groove 38 along its length direction, a dovetail slider is fixed to the bottom of the limit strip 3, the dovetail slider is embedded in the dovetail groove 38, the top surface of the limit strip 3 is provided with a screw hole passing through its bottom surface, and a locking screw 39 is screwed into the screw hole. The leather pull tab on the transition track 26 enters the vibrating feeding plate 2, and enters the guide channel along the trumpet mouth of the guide track 1 34 and the guide track 2 35. One end passes through the square hole of the pull ring and contacts with the limit strip 3. Then the driving mechanism 1 drives the pressure roller 1 36 to contact with the top surface of the leather pull tab, and the driving mechanism 2 drives the pressure roller 2 37 to contact with the top surface of the leather pull tab. When the clamping mechanism pulls the pull tab in the clamping channel downward, the leather pull tab is limited by the guide track 1 34 and the guide track 2 35 on the one hand, so that the left and right sides of the leather pull tab can be aligned after being folded in half. On the other hand, it is pressed by the pressure roller 1 36 and the pressure roller 2 37 to prevent the end of the leather pull tab from tilting and leaving the guide channel. The limit strip 3 can adjust its position according to the length of the leather pull tab so that the two ends of the leather pull tab can be aligned after being folded in half. In this embodiment, drive mechanism 1 includes cylinder 1, and drive mechanism 2 includes cylinder 2 (both are shown in the figure). Cylinder 1 and cylinder 2 are fixed to frame 1, and pressure roller 1 36 and pressure roller 2 37 are lifted up and down through the extension and retraction of cylinder 1 and cylinder 2.

[0034] The pushing mechanism includes a pushing cylinder 40 and a push pin 41. The cylinder body of the pushing cylinder 40 is fixed to the frame 1, and the push pin 41 is vertically fixed to the piston rod of the pushing cylinder 40. The pushing cylinder 40 pushes the push pin 41 to move downward, and the push pin 41 pushes the pull ring in the guide hopper 13 into the clamping channel of the clamping plate.

[0035] The clamping plate includes a left clamping plate 5a and a right clamping plate 5b, a clamping channel is formed between the left clamping plate 5a and the right clamping plate 5b, the top ends of the left clamping plate 5a and the right clamping plate 5b are bent in opposite directions to each other, so that the top opening of the clamping channel is trumpet-shaped, the left clamping plate 5a is connected to the inner wall of one side of the pull ring seat hole 4 through a compression spring 1 42, and the right clamping plate 5b is connected to the inner wall of the other side of the pull ring seat hole 4 through a compression spring 2 43. When the clamping and pulling mechanism pulls the pull ring downward, the leather pull tab is glued by the clamping action of the left clamping plate 5a and the right clamping plate 5b, and the role of setting the compression spring 1 42 and the compression spring 2 43 is to enable the left clamping plate 5a and the right clamping plate 5b to fit the leather pull tab and maintain a certain degree of concession, so that the leather pull tab can pass smoothly through the clamping channel.

[0036] like Fig. 9 As shown, the mesh layer 27 is fixed to the inner wall of the roller surface of the inner roller 20 along its circumferential direction through an elastic collar 44. The elastic collar 44 is in an open ring shape and has mesh holes 44a that pass through the inner and outer ring surfaces.

[0037] A pull-tab lead-out plate 45 is provided at the pull-tab outlet 24 , one end of which is fixed to the inner wall of the outer roller 21 , and the other end of which contacts the outer wall of the inner roller 20 , so as to make the leather pull-tab after glue coating be separated from the pull-tab outlet 24 .

[0038] In this embodiment, the actuators involved are connected to a controller. For example, the cylinder in the driving mechanism that moves the baffle 6 back and forth laterally, the telescopic cylinder, finger cylinder and rotating cylinder 12 in the clamping and pulling mechanism, and the pushing cylinder 40 in the pushing mechanism are all connected to the controller through lines. The controller can be set on the frame 1. During the entire working process, the execution timing of each actuator is debugged through the controller so that the packaging of the leather pull tab from gluing to the pull ring can be carried out smoothly. In this embodiment, because the frame 1 is a prior art structure and the components can be connected to the frame 1 by means of a bracket, etc., the structure of the frame 1 is not fully shown in the figure, nor are the connection diagrams of some components and the frame 1 fully shown. For example, the glue storage barrel 29 in the glue supply circulation mechanism and the pushing cylinder 40 in the pushing mechanism are fixed to the frame 1 by a bracket.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0040] Although this article uses more 1, frame; 2, vibrating feeding plate; 3, limit strip; 4, pull ring seat hole; 5a, left clamp; 5b, right clamp; 6, baffle; 7, finger cylinder one; 8, telescopic cylinder one; 9, finger cylinder two; 10, telescopic cylinder two; 11, rotating block; 12, rotating cylinder; 13, guide hopper; 13a, extension plate; 13b, guide plate; 14, vibrating plate; 14a, storage plate; 14b, spiral feeding track; 15, linear feeding track; 16, pull ring guide rod; 16a, guide end; 17, pull ring guide plate; 18, correction track one; 19, correction track two; 20, inner roller; 20a, glue storage cavity; 20b, overflow hole; 21, outer roller; 22, coating The following terms are used: glue chamber; 23, pull-tab inlet; 24, pull-tab outlet; 25, pull-tab box; 26, transition track; 27, mesh layer; 28, glue inlet; 29, glue storage barrel; 30, circulation pump; 31, pressure gauge; 32, hot air blower; 33, air guide cover; 34, guide track 1; 35, guide track 2; 36, pressure roller 1; 37, pressure roller 2; 38, dovetail slide; 39, locking screw; 40, push cylinder; 41, ejector pin; 42, compression spring 1; 43, compression spring 2; 44, elastic clamp; 44a, mesh; 45, pull-tab lead-out plate; 46, clamping finger cylinder 1; 47, clamping finger cylinder 2; 48, driven pulley; 49, rotary joint, etc., but the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A gluing mechanism in a leather pull tab packaging machine, the leather pull tab packaging machine comprising a frame (1), a linear vibration feeder for conveying leather pull tabs being arranged on the frame (1), the linear vibration feeder comprising a vibration feeder plate (2) horizontally arranged on the frame (1), the gluing mechanism gluing the leather pull tabs and conveying them to the input end of the vibration feeder plate (2), characterized in that: The gluing mechanism comprises a gluing roller group, which comprises an inner roller (20) and an outer roller (21), wherein the outer roller (21) is fixed to the frame (1), the inner roller (20) is rotatably arranged in the outer roller (21), the inner roller (20) is connected to a rotating mechanism capable of rotating the inner roller (20), a gluing cavity (22) is formed between the inner roller (20) and the outer roller (21), a pull-tab inlet (23) connected to the gluing cavity (22) is provided at the top of the outer roller (21), a pull-tab outlet (24) connected to the gluing cavity (22) is provided at the bottom of the outer roller (21), a pull-tab box (25) is fixed to the top of the outer roller (21), and the bottom plate of the pull-tab box (25) The bottom plate is arranged at an angle, a pull-tab outlet is provided at the bottom end thereof, the pull-tab outlet is connected to the pull-tab inlet (23), the pull-tab outlet (24) is connected to the input end of the vibrating feed plate (2) via a transition track (26), one end of the transition track (26) is tangentially connected to the roller surface of the outer roller (21) at the pull-tab outlet (24), and the other end is connected to the input end of the vibrating feed plate (2), the inner cavity of the inner roller (20) is a glue storage cavity (20a), the roller surface of the inner roller (20) is provided with densely and evenly distributed glue overflow holes (20b) connecting the inner and outer cavities of the inner roller (20), and the inner wall of the inner roller (20) is laminated with a gauze layer (27) along its circumference; A glue inlet nozzle (28) communicating with the inner cavity of the inner roller (20) is fixed on one side thereof, and a glue outlet nozzle communicating with the inner cavity of the inner roller (20) is fixed on the other side thereof. The glue inlet nozzle (28) and the glue outlet nozzle are connected to a glue supply circulation mechanism. The glue supply circulation mechanism comprises a glue storage barrel (29), a circulation pump (30) and a pressure gauge (31). The glue storage barrel (29), the circulation pump (30), the pressure gauge (31) and the glue inlet nozzle (28) are connected in sequence via a glue delivery pipe. The glue outlet nozzle of the inner roller (20) is connected to the glue storage barrel (29) via the glue delivery pipe. The glue inlet nozzle (28) is connected to a rotary joint (49), and the rotary joint (49) is connected to the pressure gauge (31) via the glue delivery pipe. The side wall of the outer roller (21) is provided with a glue drying device, which includes a hot air blower (32) and an air guide cover (33) connected to the air outlet of the hot air blower (32), the body of the hot air blower (32) is fixed to the side wall of the outer roller (21) through a bracket, and the air outlet of the air guide cover (33) faces the transition track (26); The gauze layer (27) is fixedly attached to the inner wall of the roller surface of the inner roller (20) along its circumferential direction via an elastic clamping ring (44); the elastic clamping ring (44) is in the shape of an open ring and has mesh holes (4a) penetrating the inner ring surface and the outer ring surface.

2. The gluing mechanism in the leather pull-tab packaging machine according to claim 1, characterized in that: A pull-tab lead-out plate (45) is provided at the pull-tab outlet (24), one end of the pull-tab lead-out plate (45) is fixed to the inner wall of the outer roller (21), and the other end thereof abuts against the outer wall of the inner roller (20).

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