Limiting mechanism and gluing machine thereof

Abstract

The utility model provides a limiting mechanism and a gluing machine thereof, and relates to the technical field of gluing machines, the limiting mechanism comprises a glue channel width limiting structure, the glue channel width limiting structure comprises a rectangular box body, a feed hopper, a piston plate, an electric gate valve, a valve plate and a pneumatic telescopic mechanism; according to the device, glue discharged from a dispensing machine is temporarily stored through the glue channel width limiting structure, the glue is stored in the rectangular box body, and piston plates on the front side and the rear side are driven by the front pneumatic telescopic mechanism and the rear pneumatic telescopic mechanism to move synchronously to change the width of a glue channel contained in the rectangular box body; quickly opening a valve plate on the electric gate valve to discharge the primarily shaped strip-shaped glue solution; according to the gluing mode, the glue solution is temporarily stored in the rectangular box body and then is coated, the flowability of the glue solution is reduced, meanwhile, the glue solution discharged through plasticity of the rectangular box body is in a rectangular strip shape, the flowing direction of the glue solution is more regular, the width of the finally formed glue channel can be judged according to the flowability of the glue solution, and the width of the glue channel is controllable.

Description

Technical Field

[0001] The utility model relates to the technical field of glue coating machines, in particular to a limiting mechanism and a glue coating machine thereof. Background Art

[0002] Glue coating machine is also called coating machine, glue scraper, automatic glue sprayer, etc. It is a mechanical device mainly used to apply liquid glue on the surface of textiles, paper boxes or leather. The coating machine sprays liquids such as glue or paint onto the required products through air pressure. The equipment adopts three-axis linkage and automatic operation, and is equipped with computer programming to control the path spraying.

[0003] Although traditional glue coating machines use a truss to drive the glue dispensing head to move continuously to complete high-speed glue coating, and although the glue dispensing machine can control the glue output speed and the glue head movement speed, the glue itself has a certain fluidity and the glue flow direction is irregular, which makes it difficult to control the width of the glue channel, and there is still a certain inconvenience in actual use. Utility Model Content

[0004] The utility model aims to provide a limiting mechanism and a glue coating machine thereof, which temporarily stores glue discharged from a glue dispensing machine through a glue path width limiting structure, and can change the width of the contained glue path by its own width, and finally discharge strip-shaped glue after preliminary shaping; in this glue coating method, the glue is temporarily stored in a rectangular box before coating, and the fluidity of the glue is reduced. At the same time, the glue discharged through the plasticity of the rectangular box is in the shape of rectangular strips, and the flow direction of the glue is more regular. The width of the glue path finally formed can be determined according to the fluidity of the glue, so that the width of the glue path is controllable.

[0005] The utility model provides a limiting mechanism and a glue coating machine thereof, comprising:

[0006] The glue path width limiting structure comprises:

[0007] A rectangular box body is arranged horizontally, and the front and rear side walls and the bottom surface of the rectangular box body are all open;

[0008] A feed hopper, the smaller end of which is fixedly connected to the middle portion of the upper surface of the rectangular box;

[0009] The front and rear side wall openings of the rectangular box are both slidably plugged with piston plates;

[0010] An electric gate valve is fixedly mounted at the lower end of the rectangular box, and the electric gate valve includes a valve plate, and the valve plate is shielded at the bottom opening of the rectangular box;

[0011] Pneumatic telescopic mechanisms are fixedly mounted on the left and right edges of the front and rear side walls of the rectangular box, and the telescopic ends of the pneumatic telescopic mechanisms on the same side of the front and rear are glued and fixed to the outer wall of the piston plate on the same side;

[0012] The pneumatic telescopic mechanism drives the front and rear piston plates to move synchronously to change the width of the rubber path contained in the rectangular box.

[0013] As a further optimization solution, in order to quickly pull out the valve plate for discharging when discharging is required, the electric gate valve includes:

[0014] A rectangular shell, the rear end and the left and right side walls of which are open, the inner cavity length of the rectangular shell is greater than the valve plate length, and the upper end of the rear wall of the rectangular shell is fixedly connected to the lower edge of the front wall of the rectangular box body by bolts;

[0015] An electric push rod is vertically fixedly assembled on the front wall of the rectangular housing, a telescopic rod of the electric push rod penetrates the front wall of the rectangular housing, and a terminal end of the telescopic rod of the electric push rod is fixedly connected to the front end of the valve plate through a flange;

[0016] The extension amount of the electric push rod is greater than the length of the valve plate, and the valve plate enters the inner cavity of the rectangular shell after moving forward.

[0017] As a further optimization scheme, in order to facilitate synchronous adjustment of the displacement of the front and rear piston plates, the pneumatic telescopic mechanism includes:

[0018] The L-shaped plate, the transverse portion of which is fixedly assembled to the edge of the upper surface of the rectangular box by bolts;

[0019] The cylinder is vertically fixedly assembled on the outer side of the L-shaped plate, the telescopic rod of the cylinder penetrates the longitudinal part of the L-shaped plate, and the telescopic rod of the cylinder is fixedly attached to the outer wall of the piston plate on the same side.

[0020] As a further optimization solution, in order to introduce glue cleaning solution to clean up residual glue after the device is used and facilitate the next use, the upper surface of the rectangular box is fixedly connected to a glue cleaning solution feed pipe.

[0021] As a further optimization solution, in order to evenly distribute the glue inside the rectangular box through vibration and to assist in vibration feeding during feeding, the outer sides of the front and rear piston plates are evenly fixed with vibration motors, and the vibration motors on the same side are connected in parallel to an external power supply.

[0022] As a further optimization solution, in order to vibrate the glue inside the rectangular box more evenly, the vibration motors are distributed at equal intervals along the length direction of the outer wall of the piston plate.

[0023] As a further optimization solution, in order to facilitate observation of the glue liquid inside the rectangular box, the piston plate is a transparent plate, which serves as an observation window for the glue liquid inside the rectangular box.

[0024] A glue coating machine uses the above-mentioned limiting mechanism to facilitate the adjustment of the position of the glue path width limiting structure, and to apply glue of limited width to different positions of the glued object.

[0025] include:

[0026] Base platform;

[0027] a truss, which is mounted on the base platform;

[0028] The glue coating head is detachably fixedly connected to the truss, and the truss drives the glue coating head to move up and down, forward and backward, and left and right;

[0029] The glue coating head is detachably and fixedly connected with one end of a connecting rod, the other end of the connecting rod is fixedly connected to the upper end of the glue path width limiting structure, and the feed hopper is located directly below the discharging end of the glue coating head;

[0030] A controller is electrically connected to the truss and the rubber track width limiting structure.

[0031] As a further optimization scheme, in order to position the object to be glued to the middle of the upper surface of the base platform to avoid displacement during gluing, a glued object positioning mechanism is longitudinally attached and fixed to the left and right sides of the upper surface of the base platform. The glued object positioning mechanism includes:

[0032] There are two vertical plates arranged in parallel in front and back, and the lower ends of the two vertical plates are respectively glued and fixed to the front and rear edges of the upper surface of the base platform;

[0033] A double-headed screw, both ends of which are rotatably connected to the middle of the opposite surfaces of the two vertical plates;

[0034] The front and rear ends of the outer wall of the double-headed screw are both screwed with clamping plates, and the lower end of the clamping plate is slidably fitted with the upper surface of the bottom platform, and the front and rear clamping plates are symmetrically distributed based on the middle part of the double-headed screw;

[0035] The crank passes through the vertical plate and is fixedly connected to the end of the double-headed screw.

[0036] As a further optimization solution, in order to facilitate stable gripping of the gripping end of the crank and to prevent slipping, an anti-slip rubber sleeve is sleeved on the outer wall of the gripping end of the crank.

[0037] The utility model provides a limit mechanism and a glue coating machine through improvement, which has the following improvements and advantages compared with the prior art:

[0038] Firstly, the device temporarily stores the glue discharged from the glue dispensing machine through the glue path width limiting structure, stores the glue in a rectangular box, drives the front and rear piston plates to move synchronously through the front and rear pneumatic telescopic mechanisms to change the width of the glue path contained in the rectangular box, and quickly opens the valve plate on the electric plug valve to discharge the strip-shaped glue that has been initially formed; in this gluing method, the glue is temporarily stored in the rectangular box before being coated, and the fluidity of the glue is reduced. At the same time, the glue discharged through the plasticity of the rectangular box is in the form of rectangular strips, and the flow direction of the glue is more regular. The width of the glue path finally formed can be determined based on the fluidity of the glue, so that the width of the glue path can be controlled.

[0039] Secondly, the glue coating machine in the device uses a designed limiting mechanism to facilitate the adjustment of the position of the glue path width limiting structure, so that glue with a limited width can be applied to different positions of the glued object. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 It is a schematic diagram of the structure of the utility model;

[0042] Figure 2 It is a structural schematic diagram of the glue path width limiting structure of the utility model;

[0043] Figure 3 It is a schematic cross-sectional view of the structure of the glue path width limiting structure of the utility model;

[0044] Figure 4 It is a structural schematic diagram of the glue-coated article positioning mechanism of the utility model.

[0045] Description of reference numerals:

[0046] 1- glue channel width limiting structure, 11- rectangular box, 12- feed hopper, 13- piston plate, 14- electric plug valve, 141- rectangular shell, 142- electric push rod, 143- valve plate, 15- pneumatic telescopic mechanism, 151- cylinder, 152- L-shaped plate, 2- glue cleaning solution feed pipe, 3- vibration motor, 4- bottom platform, 5- glue coating head, 7- connecting rod, 8- controller, 9- glue coating object positioning mechanism, 91- vertical plate, 92- double-headed screw, 93- crank, 94- clamp. DETAILED DESCRIPTION

[0047] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0049] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0050] See also Figure 1-4 The utility model provides a technical solution: a limiting mechanism, comprising:

[0051] The glue path width limiting structure 1 includes:

[0052] A rectangular box 11 is disposed horizontally, and the front and rear side walls and the bottom surface of the rectangular box 11 are all open;

[0053] A feed hopper 12, the smaller end of which is fixedly connected to the middle of the upper surface of the rectangular box 11;

[0054] The openings of the front and rear side walls of the rectangular box 11 are both slidably connected with piston plates 13;

[0055] The lower end of the rectangular box 11 is fixedly equipped with an electric gate valve 14, which includes a valve plate 143, and the valve plate 143 is blocked at the bottom opening of the rectangular box 11;

[0056] Pneumatic telescopic mechanisms 15 are fixedly mounted on the left and right edges of the front and rear side walls of the rectangular box 11, and the telescopic ends of the pneumatic telescopic mechanisms 15 on the same side of the front and rear sides are glued and fixed to the outer wall of the piston plate 13 on the same side;

[0057] The pneumatic telescopic mechanism 15 drives the front and rear piston plates 13 to move synchronously to change the width of the rubber path contained in the rectangular box 11 .

[0058] The glue liquid discharged from the glue coating head 5 is guided into the rectangular box 11 through the feed hopper 12. The rectangular box 11 contains less than half of its volume of glue liquid. The front, rear and bottom openings of the rectangular box 11 are blocked. The glue liquid is temporarily stored in the rectangular box 11. The front and rear pneumatic telescopic mechanisms 15 drive the front and rear piston plates 13 to move synchronously to change the width of the glue path contained in the rectangular box 11. The valve plate 143 on the electric plug valve 14 is quickly opened to discharge the initially shaped strip glue liquid.

[0059] In some embodiments, in order to quickly withdraw the valve plate 143 for discharging when discharging is required, the electric gate valve 14 includes:

[0060] The rectangular shell 141 has an opening design at its rear end and left and right side walls. The inner cavity length of the rectangular shell 141 is greater than the length of the valve plate 143. The upper end of the rear wall of the rectangular shell 141 is fixedly connected to the lower edge of the front wall of the rectangular box body 11 by bolts.

[0061] The electric push rod 142 is vertically fixedly assembled on the front wall of the rectangular housing 141. The telescopic rod of the electric push rod 142 penetrates the front wall of the rectangular housing 141, and the end of the telescopic rod of the electric push rod 142 is fixedly connected to the front end of the valve plate 143 through a flange;

[0062] The extension and retraction amount of the electric push rod 142 is greater than the length of the valve plate 143, and the valve plate 143 moves forward and enters the inner cavity of the rectangular shell 141; the electric push rod 142 is connected to an external power supply and is controlled by the controller 8. When the valve plate 143 needs to be opened, the electric push rod 142 works to pull the valve plate 143 back to the inner cavity of the rectangular shell 141, thereby removing the obstruction to the opening at the lower end of the rectangular box body 11. The inner cavity of the rectangular shell 141 is cleaned with a glue cleaning solution after use.

[0063] In some embodiments, in order to facilitate synchronous adjustment of the displacement of the front and rear piston plates 13, the pneumatic telescopic mechanism 15 includes:

[0064] The L-shaped plate 152, whose transverse portion is fixedly assembled to the edge of the upper surface of the rectangular box body 11 by bolts;

[0065] The cylinder 151 is vertically fixedly assembled on the outer side of the L-shaped plate 152. The telescopic rod of the cylinder 151 penetrates the longitudinal part of the L-shaped plate 152, and the telescopic rod of the cylinder 151 is glued and fixed to the outer wall of the piston plate 13 on the same side.

[0066] In some embodiments, in order to pass a glue cleaning solution to clean up residual glue after the device is used and facilitate the next use, the upper surface of the rectangular box 11 is fixedly connected to a glue cleaning solution feed pipe 2; the cylinder 151 is connected to an external air supply system, and the piston plate 13 is driven to move synchronously through the synchronous extension and contraction of the front and rear cylinders 151, and the outer wall of the piston plate 13 fits tightly with the openings of the front and rear side walls of the rectangular box 11 to avoid leakage.

[0067] In some embodiments, in order to evenly distribute the glue inside the rectangular box 11 through vibration and assist in vibration feeding during feeding, the outer sides of the front and rear piston plates 13 are evenly fixed with vibration motors 3, and the vibration motors 3 on the same side are connected in parallel to an external power supply.

[0068] In some embodiments, in order to more evenly vibrate the glue inside the rectangular box 11 , the vibration motors 3 are evenly spaced along the length direction of the outer wall of the piston plate 13 .

[0069] In some embodiments, in order to facilitate observation of the glue liquid inside the rectangular box 11, the liquid level of the glue liquid is adjusted by the displacement of the piston plates 13 on both sides. While changing the width of the glue path, the thickness of the glue path can also be changed. The initial amount of glue liquid is added according to the required glue path thickness. The required glue path thickness should be less than the inner cavity height of the rectangular box 11. The piston plate 13 is a transparent plate, which serves as an observation window for the glue liquid condition inside the rectangular box 11.

[0070] A glue coating machine uses the above-mentioned limiting mechanism to conveniently adjust the position of the glue path width limiting structure 1, and applies glue of limited width to different positions of the glued object, including:

[0071] Base 4;

[0072] A truss 5 mounted on the base 4;

[0073] The glue coating head 6 is detachably fixedly connected to the truss 5, and the truss 5 drives the glue coating head 6 to move up and down, forward and backward, and left and right. The truss 5 is a direct application of the existing device;

[0074] One end of the connecting rod 7 is detachably fixedly connected to the glue coating head 6, and the other end of the connecting rod 7 is fixedly connected to the upper end of the glue path width limiting structure 1, and the feed hopper 12 is located directly below the discharging end of the glue coating head 6;

[0075] The controller 8 is electrically connected to the truss 5 and the glue track width limiting structure 1 .

[0076] In some embodiments, in order to position the object to be glued to the middle of the upper surface of the base 4 to avoid displacement during glue coating, a glued object positioning mechanism 9 is longitudinally attached and fixed to the left and right sides of the upper surface of the base 4. The glued object positioning mechanism 9 includes:

[0077] There are two vertical plates 91 arranged parallel to each other at the front and rear sides, and the lower ends of the two vertical plates 91 are respectively glued and fixed to the front and rear edges of the upper surface of the base 4;

[0078] The double-headed screw 92 has two ends rotatably connected to the middle of the opposite surfaces of the two vertical plates 91;

[0079] The front and rear ends of the outer wall of the double-headed screw 92 are both screwed with clamping plates 94, and the lower end of the clamping plate 94 is slidably fitted with the upper surface of the base 4. The front and rear clamping plates 94 are symmetrically distributed based on the middle of the double-headed screw 92. The height of the front and rear clamping plates 94 can be designed according to the thickness of the object to be glued. The glued object positioning mechanism 9 can be disassembled and replaced, so that the object to be glued can pass under the double-headed screw 92.

[0080] The crank handle 93 passes through the vertical plate 91 and is fixedly connected to the end of the double-headed screw rod 92.

[0081] The crank handle 93 is rotated clockwise to drive the double-headed screw 92 to rotate, and the double-headed screw 92 is used to drive the front and rear clamping plates 94 to move inward synchronously. The distance between the front and rear clamping plates 94 is adjusted to be the same as the width of the object to be glued, so that the object to be glued located between the front and rear clamping plates 94 can be positioned.

[0082] In some embodiments, in order to facilitate stable gripping of the gripping end of the crank 93 and to prevent slipping, the outer wall of the gripping end of the crank 93 is sleeved with a non-slip rubber sleeve.

[0083] Working principle:

[0084] The glue liquid discharged from the glue coating head 5 is directed into the rectangular box 11 through the feed hopper 12. The rectangular box 11 contains a glue liquid volume less than half of its volume. The front and rear openings and the bottom openings of the rectangular box 11 are blocked. The glue liquid is temporarily stored in the rectangular box 11. The front and rear pneumatic telescopic mechanisms 15 drive the piston plates 13 on the front and rear sides to move synchronously to change the width of the glue path contained in the rectangular box 11. The valve plate 143 on the electric gate valve 14 is quickly opened to discharge the strip glue liquid after preliminary shaping.

[0085] The glue coating machine can conveniently adjust the position of the glue path width limiting structure 1 through the truss 5, so as to apply glue of limited width to different positions of the object to be glued.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A limiting mechanism, characterized in that: include: A glue path width limiting structure (1), the glue path width limiting structure (1) comprising: A rectangular box (11) is arranged horizontally, and the front and rear side walls and the bottom surface of the rectangular box (11) are all designed to be open; A feed hopper (12), the smaller end of which is fixedly connected to the middle portion of the upper surface of the rectangular box (11); The openings of the front and rear side walls of the rectangular box (11) are both slidably connected with piston plates (13); An electric gate valve (14) is fixedly mounted at the lower end of the rectangular box (11), wherein the electric gate valve (14) comprises a valve plate (143), and the valve plate (143) is shielded at the bottom opening of the rectangular box (11); Pneumatic telescopic mechanisms (15) are fixedly mounted on the left and right edges of the front and rear side walls of the rectangular box (11), and the telescopic ends of the pneumatic telescopic mechanisms (15) on the same side of the front and rear are glued and fixed to the outer wall of the piston plate (13) on the same side; The pneumatic telescopic mechanism (15) drives the front and rear piston plates (13) to move synchronously to change the width of the rubber path contained inside the rectangular box (11).

2. A limiting mechanism according to claim 1, characterized in that: The electric gate valve (14) comprises: A rectangular shell (141) whose rear end and left and right side walls are both open, the inner cavity length of the rectangular shell (141) is greater than the length of the valve plate (143), and the upper end of the rear wall of the rectangular shell (141) is fixedly connected to the lower edge of the front wall of the rectangular box body (11) by bolts; An electric push rod (142) is vertically fixedly mounted on the front wall of the rectangular housing (141), a telescopic rod of the electric push rod (142) penetrates the front wall of the rectangular housing (141), and a distal end of the telescopic rod of the electric push rod (142) is fixedly connected to a front end of a valve plate (143) via a flange; The extension and contraction amount of the electric push rod (142) is greater than the length of the valve plate (143), and the valve plate (143) enters the inner cavity of the rectangular shell (141) after moving forward.

3. A limiting mechanism according to claim 1, characterized in that: The pneumatic telescopic mechanism (15) comprises: An L-shaped plate (152), the transverse portion of which is fixedly assembled at the edge of the upper surface of the rectangular box (11) by bolts; The cylinder (151) is vertically fixedly mounted on the outer side of the L-shaped plate (152). The telescopic rod of the cylinder (151) penetrates the longitudinal part of the L-shaped plate (152), and the telescopic rod of the cylinder (151) is glued and fixed to the outer wall of the piston plate (13) on the same side.

4. A limiting mechanism according to claim 1, characterized in that: The upper surface of the rectangular box (11) is fixedly connected to a glue cleaning solution feed pipe (2).

5. A limiting mechanism according to claim 1, characterized in that: The outer side surfaces of the front and rear piston plates (13) are evenly fixed with vibration motors (3), and the vibration motors (3) on the same side are connected in parallel and then connected to an external power source.

6. A limiting mechanism according to claim 5, characterized in that: The vibration motors (3) are distributed at equal intervals along the length direction of the outer wall of the piston plate (13).

7. A limiting mechanism according to claim 1, characterized in that: The piston plate (13) is a transparent plate and serves as an observation window for the glue liquid inside the rectangular box (11).

8. A glue coating machine, using the limiting mechanism according to any one of claims 1 to 7, characterized in that: include: Base (4); A truss (5) mounted on the base (4); A glue coating head (6) is detachably fixedly connected to the truss (5), and the truss (5) drives the glue coating head (6) to move up and down, forward and backward, and left and right; One end of a connecting rod (7) is detachably and fixedly connected to the glue coating head (6), and the other end of the connecting rod (7) is fixedly connected to the upper end of the glue path width limiting structure (1), and the feed hopper (12) is located directly below the discharge end of the glue coating head (6); A controller (8) is electrically connected to the truss (5) and the glue track width limiting structure (1).

9. A glue coating machine according to claim 8, characterized in that: The upper surface of the base (4) is longitudinally fixed with a glue-coated article positioning mechanism (9) on both left and right sides thereof. The glue-coated article positioning mechanism (9) comprises: Two vertical plates (91) are arranged parallel to each other at the front and rear sides, and the lower ends of the two vertical plates (91) are respectively glued and fixed to the front and rear edges of the upper surface of the base (4); A double-headed screw (92), the two ends of which are rotatably connected to the middle parts of the opposite surfaces of the two vertical plates (91); The front and rear ends of the outer wall of the double-headed screw (92) are both screwed with clamping plates (94), and the lower end of the clamping plate (94) is slidably fitted with the upper surface of the base (4), and the front and rear clamping plates (94) are symmetrically distributed based on the middle part of the double-headed screw (92); A crank (93) passes through the vertical plate (91) and is fixedly connected to the end of the double-headed screw (92).

10. A glue coating machine according to claim 9, characterized in that: The outer wall of the gripping end of the crank (93) is sleeved with a non-slip rubber sleeve.

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