AB glue dispensing device

Abstract

The invention belongs to the technical field of dispensing, and particularly relates to an AB glue dispensing device which comprises a connecting body, a connector, a mixing pipe, a first glue injection mechanism, a second glue injection mechanism, a rotating motor, a rotating shaft and a traction rod. A first runner and a second runner are arranged in the connecting main body, and a mounting counter bore is formed in the bottom of the connecting main body; the upper end of the connector is arranged in the connecting counter bore, a glue hole and a mounting through hole are formed in the connector, and the glue hole is communicated with the second runner; an extrusion needle tube is arranged in the mounting through hole, and an extrusion hole is formed in the extrusion needle tube; a glue outlet is formed in one side of the lower end of the extrusion needle tube; the lower end of the extrusion needle tube is further sleeved with a rubber sleeve, and the rubber sleeve covers the rubber outlet. A sleeve is arranged at the upper end of the mixing tube, the connector is sleeved with the sleeve, and the extrusion needle tube extends into the mixing tube; the first glue injection mechanism is communicated with the first runner, and the second glue injection mechanism is communicated with the second runner; a connecting hole is formed in the connecting body, the rotating shaft is rotationally connected with the connecting hole, the traction rod is transversely connected to the bottom end of the rotating shaft, and the rotating motor is connected to the upper end of the rotating shaft.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of dispensing, in particular to an AB glue dispensing device. BACKGROUND

[0002] The glue filling machine is also called glue coating machine, glue dripping machine, glue hitting machine, glue filling machine, etc., which is specially used for controlling fluid. And the automatic machine can realize three-dimensional and four-dimensional path glue filling, accurate positioning, precise glue control, no glue pulling, no glue leakage and no glue dripping. The glue filling machine is mainly used for accurately dispensing, injecting, coating and dripping glue, paint and other liquids to the precise position of each product in the product process, and can be used to realize dotting, line drawing, circle or arc.

[0003] The AB glue of the prior art is a two-liquid mixed hardening glue, one liquid is the glue, and the other liquid is the hardening agent. The two liquids can be mixed to harden. The existing glue is sent by two pipes with a fixed amount, and the two liquids are mixed together before glue filling. The traditional method generally uses a screw pump or a gear pump to complete glue feeding. However, through this way, the mixing glue, A glue and B glue have long flow channels, which can cause the pressure in the two pipe glue to be inconsistent, and the AB glue with large concentration difference can easily cause glue mixing during the mixing process, thereby affecting the subsequent glue mixing process.

[0004] To overcome the above technical defects, the Chinese patent document CN111468366A discloses a glue filling machine, which comprises a mounting plate, a first glue injection mechanism, a second glue injection mechanism and a glue mixing mechanism. The first glue injection mechanism and the second glue injection mechanism are connected to the mounting plate. The glue mixing mechanism comprises a converging member, a first control valve, a second control valve and an extrusion pipe. The bottom side of the converging member is provided with a connecting portion connected to the extrusion pipe. The converging member is provided with a first flow channel and a second flow channel. One end of each of the first flow channel and the second flow channel penetrates the connecting portion. The first control valve and the second control valve are arranged on the converging member. One passage of the first control valve is connected to the first glue injection mechanism, and the other passage is connected to the first flow channel. One passage of the second control valve is connected to the second glue injection mechanism, and the other passage is connected to the second flow channel. The first glue injection mechanism and the second glue injection mechanism each comprise a plunger pump, a driving mechanism, a guide rail and a sliding block. One end of the mounting plate is provided with a fixed plate for fixing the plunger cylinder of the first glue injection mechanism and the second glue injection mechanism. The guide rail and the driving mechanism are arranged on the mounting plate. The sliding block is slidingly connected to the guide rail. The piston rod of the plunger pump is connected to the sliding block. The pump outlet of the plunger pump of the first glue injection mechanism is in contact with the first control valve, and the pump outlet is connected to the passage of the first control valve. The pump outlet of the plunger pump of the second glue injection mechanism is in contact with the second control valve, and the pump outlet is connected to the passage of the second control valve. The driving mechanism drives the sliding block to move on the guide rail. The driving mechanism is any one of a linear module, a pneumatic cylinder, a hydraulic cylinder and an electric cylinder. The first control valve and the second control valve each comprise a reversing head, a valve body and a driving member. The valve body is connected to the plunger cylinder of the corresponding plunger pump and the converging member. One end of the reversing head extends into the valve body. The reversing head is provided with a first flow guide hole, a second flow guide hole and a third flow guide hole that are in communication. The valve body is provided with a glue inlet hole, a transition hole and an extrusion hole. The driving member is connected to the reversing head and is used to drive the reversing head to rotate in the valve body. The glue inlet hole is connected to the plunger pump through the first flow guide hole and the second flow guide hole, and is continuously switched between being connected to the plunger pump through the second flow guide hole and the third flow guide hole and being connected to the flow channel in the converging member. The driving member is any one of a rotary pneumatic cylinder, a motor and a rotary hydraulic cylinder. The first glue injection mechanism and the second glue injection mechanism are symmetrically arranged on the mounting plate, and the same end of the first glue injection mechanism and the second glue injection mechanism is connected to the converging member on the outer side of the mounting plate. When the glue filling machine is working, A glue enters the first glue injection mechanism through the first control valve, and B glue enters the second glue injection mechanism through the second control valve. After the glue injection is completed, the first glue injection mechanism generates pressure to transport A glue to the first flow channel of the converging member, and the second glue injection mechanism generates pressure to transport B glue to the second flow channel of the converging member. A glue and B glue enter the extrusion pipe through the first flow channel and the second flow channel, respectively, to realize the glue filling of the glue filling machine. In this way, the first glue injection mechanism, the second glue injection mechanism, the converging member, the first control valve and the second control valve can shorten the transportation distance of A glue and B glue, reduce the pressure of extrusion, and the converging member is a solid member with certain pressure resistance. In this way, the situation of glue mixing during the glue mixing process is avoided.

[0005] However, for large proportion AB glue mixing, for example, 10 parts of A glue and 1 part of B glue, the first glue injection mechanism injects 10 parts of A glue, and the second glue injection mechanism injects 1 part of B glue, so that when A glue is injected, A glue with large flow and pressure will enter the second glue injection mechanism, thereby causing the proportion of A glue and B glue to be out of balance. SUMMARY

[0006] The present application aims to provide an AB glue dispensing device, which aims to solve the problem that the AB glue dispensing device in the prior art will cause the proportion of mixed glue to be out of balance.

[0007] To achieve the above-mentioned purpose, the AB glue dispensing device provided by the embodiments of the present application comprises a connecting body, a connecting head, a mixing pipe, a first glue injection mechanism, a second glue injection mechanism, a rotary motor, a rotating shaft and a traction rod. The connecting body is provided with a first flow channel and a second flow channel, the bottom of the connecting body is provided with a mounting counterbore, and the first flow channel and the second flow channel penetrate into the connecting counterbore. The upper end of the connecting head is arranged in the connecting counterbore, the connecting head is provided with a glue hole and a mounting through hole, the glue hole is in communication with the second flow channel, and the mounting through hole is provided with an extrusion needle tube. The lower end of the extrusion needle tube extends out of the mounting through hole, the extrusion needle tube is provided with an extrusion hole, the extrusion hole is in communication with the first flow channel, one side of the lower end of the extrusion needle tube is provided with a glue outlet, the glue outlet is in communication with the extrusion hole, and the lower end of the extrusion needle tube is further provided with a glue sleeve tube. The glue sleeve tube covers the glue outlet and forms a one-way valve structure. The upper end of the mixing pipe is provided with a sleeve tube, the sleeve tube is sleeved on the connecting head, and the extrusion needle tube extends into the mixing pipe. The first glue injection mechanism and the second glue injection mechanism are arranged on one side of the connecting body. The first glue injection mechanism is in communication with the first flow channel and is used for injecting glue into the first flow channel. The second glue injection mechanism is in communication with the second flow channel and is used for injecting glue into the second flow channel. The connecting body is provided with a connecting hole, the rotating shaft is rotationally connected with the connecting hole, the bottom end of the rotating shaft extends into the mixing pipe, the traction rod is transversely arranged and connected to the bottom end of the rotating shaft, and the rotary motor is connected to the upper end of the rotating shaft and is used for driving the rotating shaft to rotate, so that the traction rod alternately passes through the bottom end of the glue outlet and the bottom end of the glue hole.

[0008] Further, the connecting hole is further provided with a guide sleeve, the lower end of the connecting hole is provided with a limiting step for limiting the guide sleeve, and the rotating shaft rotationally penetrates through the guide sleeve.

[0009] Further, the upper end of the connecting hole is also provided with a threaded hole, a stud is connected to the threaded hole, an inner hole is arranged in the stud, a plurality of first O-rings are arranged in the inner hole in sequence, and the rotating shaft passes through the first O-rings.

[0010] Further, the connecting hole extends to the lower end of the connecting head, the limiting step is arranged in the connecting head, a plurality of rubber sleeves are arranged on the limiting step in sequence, the rubber sleeve is provided with a recess, a second O-ring is arranged in the recess, the lower end of the rotating shaft passes through the second O-ring, the hardness of the rubber sleeve is greater than the hardness of the second O-ring, and the rubber sleeve at the upper end supports the guide sleeve.

[0011] Further, the bottom end of the connecting head is also provided with a limiting hole, a sealing sleeve is arranged in the limiting hole, the sealing sleeve comprises an outer ring and an inner ring, a top ring connecting the upper ends of the outer ring and the inner ring, and an annular groove formed between the inner ring and the outer ring is deformed; the bottom of the connecting head is also provided with a limiting plate for limiting the sealing sleeve in the limiting hole; and the lower end of the rotating shaft passes through the inner ring.

[0012] Further, a tapered pipe is connected between the sleeve pipe and the mixing pipe, and the traction shaft is located below the tapered pipe; the glue outlet and the glue hole are located above the tapered pipe.

[0013] Further, the first glue injection mechanism comprises a cylinder pipe and a screw extrusion assembly, one end of the first flow channel is provided with a pipe joint, the cylinder pipe is connected to the pipe joint, the cylinder pipe is provided with a first glue inlet, and the screw extrusion assembly is arranged in the cylinder pipe.

[0014] Further, the second glue injection mechanism comprises a glue injection head, an air cylinder and a movable rod, one side of the connecting body is provided with a connecting position, the connecting position is provided with a glue injection hole, the glue injection hole is in communication with the second flow channel, the glue injection head is arranged on one side of the connecting position, an inner hole is arranged in the glue injection head, one end of the inner hole close to the glue injection hole is provided with a through hole, the through hole is in communication with the glue injection hole, one side of the glue injection head is also provided with a second glue inlet connected with the inner hole, the inner hole is also provided with a supporting sleeve, a first end of the movable rod passes through the supporting sleeve and extends into the glue injection hole, a second end of the movable rod is connected with the air cylinder, a sealing plug is arranged on the first end of the movable rod, a sealing sleeve is arranged on the movable rod, and one side of the sealing sleeve is provided with a second compression spring.

[0015] Further, the air cylinder comprises a cylinder body, a piston rod and a compression spring, the cylinder body is arranged at one side of the glue injection head, the piston rod is arranged in the cylinder body, the piston rod is provided with a piston, and the piston is provided with the compression spring closer to one side of the through hole; and the movable rod is connected with the piston rod.

[0016] Further, the mixed pipe is further sleeved with a protective sleeve pipe, the protective sleeve pipe and the mixed pipe are transparent pipes, and the protective sleeve pipe is provided with a sensor for detecting whether the traction rod rotates.

[0017] The AB glue dispensing device provided by the embodiment of the present application has at least the following technical effects:

[0018] When injecting glue, the first glue injection mechanism injects the first glue into the first flow channel, the glue water enters the extrusion hole of the extrusion needle pipe from the first flow channel, and the glue sleeve pipe is extruded open under the action of glue water pressure, and the glue is extruded from the glue outlet into the mixed pipe; at the same time, the second glue injection mechanism injects another kind of glue water into the second flow channel, the glue water enters the glue hole from the second flow channel, and then enters the mixed pipe from the glue hole. In addition, the second glue injection mechanism will flow to the extrusion needle pipe due to the pressure of glue injection, and better mix with the glue water extruded by the first glue injection mechanism. The rotating motor drives the rotating shaft to rotate, thereby driving the traction rod to rotate, and the rotating traction rod extrudes the first glue into another glue and mixes uniformly. Since the proportion of the first glue is small, after injecting it into the mixed pipe, another glue is still being injected, and the glue sleeve is sleeved on the extrusion needle pipe, which seals the glue outlet, thereby avoiding the backflow of glue water into the extrusion needle pipe, so that the two kinds of glue can fully enter the mixed pipe, and the mixing proportion of the two kinds of glue water is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The structural diagram of the AB glue dispensing device provided by the embodiment of the present application.

[0021] Figure 2 The sectional view of the AB glue dispensing device provided by the embodiment of the present application along the first glue injection mechanism.

[0022] Figure 3 The sectional view of the AB glue dispensing device provided by the embodiment of the present application along the second glue injection mechanism.

[0023] Figure 4A cross-sectional view of the AB glue dispensing device along the glue injection needle tube is provided for the embodiment of the present application.

[0024] Figure 5 A cross-sectional view of the connecting main body part of the AB glue dispensing device is provided for the embodiment of the present application.

[0025] Figure 6 A partial enlarged view of Figure 5

[0026] Figure 7 A cross-sectional view of the first glue injection mechanism of the AB glue dispensing device is provided for the embodiment of the present application.

[0027] Figure 8 A cross-sectional view of the second glue injection mechanism of the AB glue dispensing device is provided for the embodiment of the present application. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein the same or similar elements are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below are exemplary and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0030] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically limited.

[0031] ​In the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mounting", "connection", "linking", "fixing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0032] In an embodiment of the AB glue dispensing device of the present application, please refer to Figures 1 to 8 The AB glue dispensing device of the present embodiment comprises a connecting body 100, a connecting head 200, a mixing pipe 300, a first glue injection mechanism 400, a second glue injection mechanism 500, a rotating motor 600, a rotating shaft 700 and a traction rod 800.

[0033] The connecting body 100 is provided with a first flow channel 101 and a second flow channel 102, and the bottom of the connecting body 100 is provided with a mounting counterbore 103, and the first flow channel 101 and the second flow channel 102 penetrate into the connecting counterbore 103. The upper end of the connecting head 200 is arranged in the connecting counterbore 103, and the connecting head 200 is provided with a glue hole 201 and a mounting through hole 202, and the glue hole 201 communicates with the second flow channel 102. The mounting through hole 202 is provided with an extrusion needle tube 210, the lower end of the extrusion needle tube 210 extends out of the mounting through hole 202, the extrusion needle tube 210 is provided with an extrusion hole 211, and the extrusion hole 211 communicates with the first flow channel 101; one side of the lower end of the extrusion needle tube 210 is provided with a glue outlet 212, and the glue outlet 212 communicates with the extrusion hole 211. The lower end of the extrusion needle tube 210 is further provided with a glue sleeve tube 220, the glue sleeve tube 220 covers the extrusion hole 211 and forms a one-way valve structure. The upper end of the mixing pipe 300 is provided with a sleeve 310, the sleeve 310 is sleeved on the connecting head 200, and the extrusion needle tube 210 extends into the mixing pipe 300; the first glue injection mechanism 400 and the second glue injection mechanism 500 are arranged on one side of the connecting body 100, the first glue injection mechanism 400 communicates with the first flow channel 101 and is used for injecting glue into the first flow channel 101, and the second glue injection mechanism 500 communicates with the second flow channel 102 and is used for injecting glue into the second flow channel 102. The connecting body 100 is provided with a connecting hole 104, the rotating shaft 700 is rotationally connected with the connecting hole 104, and the bottom end of the rotating shaft 700 extends into the mixing pipe 300, the traction rod 800 is transversely arranged and connected at the bottom end of the rotating shaft 700, and the rotating motor 600 is connected with the upper end of the rotating shaft 700 and is used for driving the rotating shaft 700 to rotate, so that the traction rod 800 alternately passes through the bottom end of the glue outlet 212 and the bottom end of the glue hole 201.

[0034] The AB glue dispensing device of the embodiment, when injecting glue, the first glue injection mechanism 400 injects the first glue into the first flow channel 101, the glue enters the extrusion hole 211 of the extrusion needle tube 210 from the first flow channel 101, and under the action of the glue pressure, the glue sleeve 220 is extruded away, and the glue is extruded into the mixing tube 300 from the glue outlet 212, and the second glue injection mechanism 500 injects another kind of glue into the second flow channel 102, the glue enters the glue hole 201 from the second flow channel 102, and then enters the mixing tube 300 from the glue hole 201. In addition, the second glue injection mechanism 500 will flow to the extrusion needle tube 210 due to the pressure of glue injection, and better mix with the glue extruded by the first glue injection mechanism 400. The rotating motor 600 drives the rotating shaft 700 to rotate, thereby driving the traction rod 800 to rotate, and the rotating traction rod 800 draws the first glue into another glue and mixes it uniformly. Since the proportion of the first glue is small, after injecting it into the mixing tube 300, another glue is still continuously injected at high pressure, and the glue sleeve 220 is sleeved on the extrusion needle tube 210, and the glue sleeve 220 seals the glue outlet to avoid the glue flowing back into the extrusion needle tube 210, so that the two kinds of glue can fully enter the mixing tube 300, and the mixing ratio of the two kinds of glue is ensured.

[0035] Further, with reference to Figure 4 and Figure 5 , the connecting hole 104 is further provided with a guide sleeve 110, and the lower end of the connecting hole 104 is provided with a limiting step for limiting the guide sleeve 110; and the rotating shaft 700 penetrates the guide sleeve 110 in a rotating manner. The guide sleeve 110 limits the rotating shaft 700.

[0036] Further, with reference to Figure 4 and Figure 5 , the upper end of the connecting hole 104 is further provided with a threaded hole, the threaded hole is connected with a stud 120, the stud 120 is provided with an inner hole 121, the inner hole 121 is provided with a plurality of first O-rings 130 stacked in sequence, and the rotating shaft 700 penetrates the first O-rings 130. The upper end of the guide sleeve 110 is provided with a pressing end extending into the lower end of the inner hole 121, and the pressing end limits the first O-rings 130. Preferably, the upper end of the guide sleeve 110 is conical. In the embodiment, the air tightness of the connection between the rotating shaft 700 and the connecting body 100 can be increased by the first O-rings 130. In addition, the compression amount of the first O-rings 130 can be adjusted by rotating the stud 120 to adjust the air tightness and the resistance of the rotating shaft 700. The rotating resistance of the rotating shaft 700 can be reduced while being sealed.

[0037] Further, with reference to Figure 5The connecting hole 104 extends the lower end of the connecting head 200, and the limiting step is arranged in the connecting head 200. A plurality of rubber sleeves 140 are arranged in sequence on the limiting step. The rubber sleeve 140 is provided with a recess, and the recess is provided with a second O-shaped ring 150. The lower end of the rotating shaft 700 penetrates the second O-shaped ring 150. The hardness of the rubber sleeve 140 is greater than the hardness of the second O-shaped ring 150. The rubber sleeve 140 at the upper end supports the guide sleeve 110. In this embodiment, the second O-shaped ring 150 further increases the connection air tightness of the rotating shaft 700. The first O-shaped ring 130 and the second O-shaped ring 150 support the limiting rotating shaft 700, so that the rotating shaft 700 has a certain deformation space during rotation, preventing the rotating shaft 700 from being bent and rotated to be stuck.

[0038] Further, referring to Figure 5 and Figure 6 , the bottom end of the connecting head 100 is further provided with a limiting hole 106, and the limiting hole 106 is provided with a sealing sleeve 160. The sealing sleeve 160 includes an outer ring 161 and an inner ring 162, and a top ring 163 connecting the upper ends of the outer ring 161 and the inner ring 162. The annular groove 164 is formed between the inner ring 162 and the outer ring 161. The bottom of the connecting head 200 is further provided with a limiting plate 230 for limiting the sealing sleeve 160 in the limiting hole 106. The lower end of the rotating shaft 700 penetrates the inner ring 162. In this embodiment, the sealing sleeve 160 can effectively prevent the upward flow of glue. The annular groove 164 formed by the outer ring 161 and the inner ring 162 of the sealing sleeve 160 can buffer the lower end of the rotating shaft 700, avoiding the problem of bending and deformation of the lower end of the rotating shaft 700 under stress.

[0039] Further, referring to Figure 4 and Figure 5 , the sleeve 310 is connected with the mixing pipe 300 through a tapered pipe 320, and the traction shaft 800 is located below the tapered pipe 320. The glue outlet 212 and the glue hole 201 are located above the tapered pipe 320. In this embodiment, the glue squeezed out from the glue outlet 212 and the glue hole 201 enters the tapered pipe 320 for mixing, and the traction rod 800 completes the uniform mixing of the glue when the glue is transported into the mixing pipe 300. The traction rod 800 rotates below the tapered pipe 320, so it can effectively block the downward flow of the glue, further improving the uniformity of the mixing.

[0040] Further, referring to Figure 2 and Figure 7The first glue injection mechanism 400 comprises a barrel 410 and a screw extrusion assembly 420. One end of the first flow channel 101 is provided with a pipe joint 170. The barrel 410 is connected to the pipe joint 170. The barrel 410 is provided with a first glue inlet 411. The screw extrusion assembly 420 is arranged in the barrel 410. In the embodiment, the first glue inlet 411 can be connected to a glue storage device such as a glue bucket for providing glue. Therefore, glue can enter the inside of the barrel 410 from the first glue inlet 411. The glue is pressed into the first flow channel 101 by the screw extrusion assembly 420.

[0041] Further, referring to Figure 6 and Figure 8 , the second glue injection mechanism 500 comprises a glue injection head 510, a pneumatic cylinder 520 and a movable rod 530. One side of the connecting body 100 is provided with a connecting position. The connecting position is provided with a glue injection hole 107. The glue injection hole 107 is in communication with the second flow channel 102. The glue injection head 510 is arranged at one side of the connecting position. The glue injection head 510 is provided with an inner hole 511. One end of the inner hole 511 close to the glue injection hole 107 is provided with a through hole 512. The through hole 512 is in communication with the glue injection hole 107. One side of the glue injection head 510 is further provided with a second glue inlet 513 connected to the inner hole 511. The inner hole 511 is further provided with a support sleeve 540. The first end of the movable rod 530 penetrates through the support sleeve 540 and extends into the glue injection hole 107. The second end of the movable rod 530 is connected to the pneumatic cylinder 520. The first end of the movable rod 530 is provided with a sealing plug 531. The movable rod 530 is provided with a sealing sleeve 532. One side of the sealing sleeve 532 is provided with a second compression spring 533. The sealing sleeve 532 is always sealed to the support sleeve 540 by the second compression spring 533. In the embodiment, when the second glue injection mechanism 500 injects glue into the second flow channel 102, the pneumatic cylinder 520 drives the movable rod 530. The sealing plug 531 opens the through hole 512, so that the inner hole 511 is in communication with the glue injection hole 107. At the same time, the sealing sleeve 532 seals the support sleeve 540. Glue is poured into the inner hole 511 through the second glue inlet 513, so that the glue enters the mixing pipe 300.

[0042] Further, referring to Figure 8 , the pneumatic cylinder 520 comprises a cylinder body 521, a piston rod 522 and a compression spring 523. The cylinder body 521 is arranged at one side of the glue injection head 510. The piston rod 522 is arranged in the cylinder body 521. The piston rod 522 is provided with a piston 524. The side of the piston 524 close to the through hole 512 is provided with the compression spring 523. The movable rod 530 is connected to the piston rod 522. In the embodiment, when the pneumatic cylinder 520 is reset, the piston 524 can be reset by the elastic force of the compression spring 523. The problem that the piston rod 522 cannot be reset is avoided.

[0043] Further, the mixing pipe 300 is further sleeved with a protective sleeve 900, the protective sleeve 900 and the mixing pipe 300 are both transparent pipes, the protective sleeve 900 is provided with a sensor 910 for detecting whether the traction rod 800 rotates. In the embodiment, the protective sleeve 900 can play a good protection role on the mixing pipe 300, and meanwhile, the installation of the mixing pipe 300 is facilitated. In addition, the problem of whether the traction rod 800 rotates can be detected through the sensor 910.

[0044] Further, referring to Figures 1 to 4 , referring to Figure 5 , the lower end of the rotating shaft 700 is provided with a connecting block 710, and the traction rod 800 is arranged on one side of the connecting block 710.

[0045] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An AB glue dispensing device, characterized in that, The device includes a connecting body, a connector, a mixing tube, a first glue injection mechanism, a second glue injection mechanism, a rotary motor, a rotating shaft, and a traction rod. The connecting body has a first flow channel and a second flow channel, and a mounting countersunk hole at its bottom. The first and second flow channels extend into the mounting countersunk hole. The upper end of the connector is located within the mounting countersunk hole, and the connector has a glue hole and a mounting through hole. The glue hole communicates with the second flow channel. An extrusion needle is located within the mounting through hole, and its lower end extends out of the mounting through hole. The extrusion needle has an extrusion hole that communicates with the first flow channel. A glue outlet is located on one side of the lower end of the extrusion needle, and the glue outlet communicates with the extrusion hole. A glue sleeve is also fitted over the lower end of the extrusion needle, covering the [missing information - likely a component or part]. The connector has an outlet and forms a one-way valve structure; the upper end of the mixing tube is provided with a sleeve, which is fitted onto the connector head, and the extrusion needle extends into the mixing tube; the first glue injection mechanism and the second glue injection mechanism are located on one side of the connector body, the first glue injection mechanism is connected to the first flow channel and is used to inject glue into the first flow channel, and the second glue injection mechanism is connected to the second flow channel and is used to inject glue into the second flow channel; the connector body has a connecting hole, the rotating shaft is rotatably connected to the connecting hole, and the bottom end of the rotating shaft extends into the mixing tube, the traction rod is horizontally connected to the bottom end of the rotating shaft, and the rotary motor is connected to the upper end of the rotating shaft to drive the rotating shaft to rotate, so that the traction rod alternately passes through the bottom end of the outlet and the bottom end of the glue hole.

2. The AB glue dispensing device according to claim 1, characterized in that: A guide sleeve is also provided inside the connecting hole, and a limiting step is provided at the lower end of the connecting hole to limit the guide sleeve; the rotating shaft rotatably passes through the guide sleeve.

3. The AB glue dispensing device according to claim 2, characterized in that: The upper end of the connecting hole is also provided with a screw hole, the screw hole is connected to a stud, the stud is provided with an inner hole, the inner hole is provided with a plurality of first O-rings stacked in sequence, and the rotating shaft passes through the first O-rings; the upper end of the guide sleeve is provided with a pressing end that extends into the lower end of the inner hole, and the pressing end limits the first O-rings.

4. The AB glue dispensing device according to claim 3, characterized in that: The connecting hole extends to the lower end of the connector, and the limiting step is disposed inside the connector; multiple rubber sleeves are stacked sequentially on the limiting step, each rubber sleeve has a cavity, and a second O-ring is disposed inside the cavity, with the lower end of the rotating shaft passing through the second O-ring; the hardness of the rubber sleeve is greater than the hardness of the second O-ring; the rubber sleeve located at the upper end supports the guide sleeve.

5. The AB glue dispensing device according to any one of claims 1 to 4, characterized in that: The bottom end of the connector is also provided with a limiting hole, and a sealing sleeve is provided in the limiting hole. The sealing sleeve includes an outer ring and an inner ring, as well as a top ring connecting the upper ends of the outer ring and the inner ring. A deformable annular groove is formed between the inner ring and the outer ring. The bottom of the connector is also provided with a limiting plate for limiting the sealing sleeve in the limiting hole. The lower end of the rotating shaft passes through the inner ring.

6. The AB glue dispensing apparatus according to any one of claims 1 to 4, characterized in that: A tapered tube connects the sleeve and the mixing tube, and the traction shaft is located below the tapered tube; the glue outlet and the glue hole are located above the tapered tube.

7. The AB glue dispensing device according to claim 6, characterized in that: The first dispensing mechanism includes a barrel and a screw extrusion assembly. One end of the first flow channel is provided with a pipe joint. The barrel is connected to the pipe joint. The barrel is provided with a first dispensing port. The screw extrusion assembly is located inside the barrel.

8. The AB glue dispensing device according to claim 6, characterized in that: The second glue injection mechanism includes a glue injection head, a cylinder, and a movable rod. A connection position is provided on one side of the connecting body, and a glue injection hole is provided at the connection position, which communicates with the second flow channel. The glue injection head is located on one side of the connection position and has an inner hole. A through hole is provided at one end of the inner hole near the glue injection hole, and the through hole communicates with the glue injection hole. A second glue inlet hole is also provided on one side of the glue injection head, connected to the inner hole. A support sleeve is also provided in the inner hole. The first end of the movable rod passes through the support sleeve and extends into the glue injection hole. The second end of the movable rod is connected to the cylinder. A sealing plug is provided at the first end of the movable rod, and a sealing sleeve is fitted onto the movable rod. A second compression spring is provided on one side of the sealing sleeve.

9. The AB glue dispensing device according to claim 8, characterized in that: The cylinder includes a cylinder body, a piston rod, and a compression spring. The cylinder body is located on one side of the dispensing head, the piston rod is located inside the cylinder body, the piston rod has a piston, and the compression spring is located on the side of the piston closer to the through hole. The movable rod is connected to the piston rod.

10. The AB glue dispensing device according to claim 1, characterized in that: The mixing tube is also covered by a protective sleeve. Both the protective sleeve and the mixing tube are transparent tubes. The protective sleeve is equipped with a sensor to detect whether the traction rod is rotating.

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