Dispensing machine positioning tool

Abstract

The application relates to the technical field of point glue machines, and provides a point glue machine positioning tool, which comprises a bearing plate, the upper side of the bearing plate is fixedly connected with a portal frame, a bearing assembly is arranged on the inner side of the portal frame on the upper side of the bearing plate, an observation window is arranged on the front side of the portal frame, a first electric sliding rail is arranged at the middle of the upper end of the portal frame, a fixing frame is arranged on the lower side of the first electric sliding rail, a lifting frame is movably arranged on the right side of the fixing frame, and movable rods are fixedly connected with the front end and the rear end of the lifting frame. Through adoption of a vacuum pump and a suction disc negative pressure adsorption structure, cooperation of a screen plate and a soft rubber pad sealing design, real-time monitoring of negative pressure by a control system and alarm shutdown in an abnormal situation, non-damage and high-reliability fixing of flat parts and small workpieces can be realized, workpiece displacement in a point glue process is effectively avoided, point glue precision and product yield are improved, residual glue on the outer wall of a point glue pipe can be quickly removed, and glue outlet blockage and glue liquid wire drawing are prevented.

Description

Technical Field

[0001] This invention relates to the field of dispensing machine technology, specifically to a positioning fixture for a dispensing machine. Background Technology

[0002] A dispensing machine is used to precisely control fluids and apply them dropwise or in the form of coatings on the surface or interior of a product. It is widely used in various product manufacturing processes, such as precisely applying adhesives, paints, or other liquid substances to specific locations, supporting the creation of dotted, line-drawing, circular, or curved patterns.

[0003] While existing automated dispensing equipment has improved dispensing efficiency to some extent, it still has many shortcomings: First, workpiece positioning mostly relies on clamping or simple placement and fixing, which is not well adapted to flat parts and small precision parts. Clamping can easily damage the surface of the workpiece, and if it is not firmly fixed, it will shift or deviate during the dispensing process, directly affecting the dispensing quality. Second, residual glue is easily attached to the dispensing nozzle after continuous operation. Long-term use will cause the dispensing nozzle to become blocked and the glue marks to become irregular. Existing equipment mostly relies on manual cleaning, which is cumbersome, inefficient, and cannot achieve continuous automated production. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a positioning fixture for a dispensing machine, which solves the problems of poor workpiece positioning adaptability, easy damage to workpieces, unstable fixation and easy displacement, as well as the need for manual cleaning of residual adhesive in the dispensing tube, low efficiency, and inability to achieve continuous automated production.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a positioning fixture for a dispensing machine, comprising a support plate, a gantry frame fixedly connected to the upper side of the support plate, a support component disposed on the upper side of the support plate inside the gantry frame, an observation window disposed on the front side of the gantry frame, a first electric slide rail mounted on the upper middle part of the gantry frame, a fixed frame mounted on the lower side of the first electric slide rail, a lifting frame movably disposed on the right side of the fixed frame, movable rods fixedly connected to both the front and rear ends of the lifting frame, the movable rods slidably connected to the front and rear sides of the fixed frame, a fixed seat fixedly connected to the upper left side of the fixed frame, an electric push rod fixedly connected to the lower end of the fixed seat, the drive end of the electric push rod fixedly connected to the upper left side of the lower end of the lifting frame, and a locking block fixedly connected to the notch on the lower right side of the lifting frame. A conveying pipe is fixedly connected to the upper side of the frame. The lower end of the conveying pipe passes through the clamping block and is fixedly connected to a connector. The lower end of the connector is fixedly connected to a dotted tube. Openings are provided on both the front and rear sides of the clamping block on the lower right side of the lifting frame. A guide roller is rotatably connected to the upper inner side of the opening. Lifting rods are provided on both the front and rear sides of the upper end of the lifting frame. A connecting plate is fixedly connected to the upper end of the lifting rods. A baffle is fixedly connected to the upper right side of the frame above the connecting plate. A spring is provided on the outside of the lifting rod below the connecting plate. An elastic plate is fixedly connected to the lower end of the lifting rod. The lower end of the elastic plate passes through the inside of the opening. A fixing clamp is fixedly connected to the lower end of the elastic plate. A cleaning brush is fixedly connected to the inner side of the fixing clamp. An arc-shaped segment is provided in the middle of the elastic plate. The arc-shaped segment is in close contact with the outer wall of the guide roller.

[0006] Preferably, the upper side of the gantry frame is provided with a movable groove on the right side of the first electric slide rail, and a movable block that moves back and forth is provided on the inner side of the movable groove. Rollers are rotatably connected to both the left and right sides of the movable block, and the rollers are movably connected to the slots on the left and right sides of the movable groove.

[0007] Preferably, a limiting plate for limiting the movable block is installed on the upper side of the gantry, located on the right side of the movable slot. A rigid guide tube is fixedly connected to the middle of the movable block, and the lower end of the rigid guide tube is fixedly connected to the upper outside of the fixed seat.

[0008] Preferably, a support base is fixedly connected to the lower side of the support plate, a glue bucket is provided on the inner rear end of the support base, a conveying pump is installed at the rear end of the support plate, and the feed pipe of the conveying pump is connected to the inside of the glue bucket.

[0009] Preferably, the discharge port of the conveying pump is fixedly connected to a first flexible hose, and the end of the first flexible hose is fixedly connected to the upper end of the rigid conduit.

[0010] Preferably, the supporting component includes sliding grooves opened on the upper sides of the front and rear ends of the supporting plate, a shelf is provided in the middle of the upper side of the supporting plate, sliding rods are fixedly connected to the lower sides of the front and rear ends of the shelf, the sliding rods are slidably connected to the inner side of the sliding groove, and a mesh plate is fixedly connected to the inner side of the upper end of the shelf.

[0011] Preferably, a lead screw is rotatably connected to the middle of the bearing plate, a push plate is threaded to the outside of the lead screw, the end of the push plate is fixedly connected to the left side of the placement plate, a first stepper motor is fixedly connected to the right side of the bearing plate, and the drive end of the first stepper motor is fixedly connected to the right end of the lead screw.

[0012] Preferably, the inner left and right sides of the shelf are fixedly connected to a first slide rail, the upper side of the first slide rail is slidably connected to a second electric slide rail, the inner right side of the shelf is fixedly connected to a third electric slide rail to the left of the first slide rail, and the drive end of the third electric slide rail is fixedly connected to the lower side of the second electric slide rail.

[0013] Preferably, the drive end of the second electric slide rail is equipped with a slider, the upper end of the slider is fixedly connected to a suction cup, and the lower front end of the suction cup is fixedly connected to an air tube head.

[0014] Preferably, a protective shell is fixedly connected to the front end of the shelf, a vacuum pump is fixedly connected to the inner side of the protective shell, a second hose is fixedly connected to the rear end of the vacuum pump, and the rear end of the second hose is fixedly connected to the end of the air tube head.

[0015] Working principle: Before dispensing adhesive to the workpiece, the workpiece to be dispensed is placed on the screen plate. Different placement methods are used for different workpieces. For flat workpieces, they are placed directly on the screen plate. For smaller workpieces, they are placed on the designated placement rack and arranged in an array. After placement, the third electric slide rail drives the second electric slide rail to move back and forth. At the same time, the second electric slide rail drives the slider and suction cup to move left and right, so that the suction cup moves to the bottom of the workpiece. Then, the vacuum pump is activated, and negative pressure is generated on the suction cup through the second hose. The workpiece is then adsorbed and fixed through the perforations on the screen plate. A soft rubber pad is set on the upper end of the suction cup to increase the tightness and sealing between it and the bottom of the screen plate.

[0016] During the dispensing operation, the electric push rod is activated, extending its drive end and moving the lifting frame downwards. This, in turn, moves the delivery pipe, connector, and dispensing tube downwards, bringing the dispensing tube into contact with the workpiece. A movable rod is used to maintain the stability of the lifting frame's vertical movement. Subsequently, the first electric slide rail is activated, moving the fixed frame back and forth, which in turn moves the dispensing tube back and forth. Simultaneously, the first stepper motor drives the lead screw to rotate, causing the push plate to move left and right, which in turn moves the workpiece on the upper part of the placement plate and mesh plate left and right, thus cooperating with the back and forth moving dispensing tube to complete the dispensing operation. During the dispensing process, the delivery pump draws the glue stored in the glue tank and injects it into the rigid conduit through the first flexible hose. The glue is then guided through the rigid conduit to the fixed seat and then flows out through the connector and dispensing tube to complete the dispensing operation. After dispensing is completed, the electric push rod moves the lifting frame upwards, which in turn moves the dispensing tube upwards, away from the workpiece.

[0017] As the dispensing operation progresses, some adhesive residue will adhere to the outside of the dispensing tube's outlet, requiring cleaning. During cleaning, an electric push rod drives the lifting frame upwards, which in turn moves the lifting rod and connecting plate upwards, bringing the connecting plate into contact with the baffle. Once in contact, the lifting frame continues upwards, while the connecting plate remains stationary, thus keeping the elastic plate stationary. The rising lifting frame compresses the spring outside the lifting rod, and simultaneously, the lower arc-shaped section of the stationary elastic plate contacts the guide roller, forcing the lower end of the elastic plate to bend inwards. This causes the cleaning brush at its lower end to move inwards, clamping the dispensing tube between the two cleaning brushes. The dispensing tube then moves upwards relative to the cleaning brushes, completing the cleaning of the dispensing tube. The cleaning brushes have sponge pads at their ends to absorb adhesive residue for cleaning the dispensing tube. After cleaning, the electric push rod drives the lifting frame downwards. During descent, the compressed spring releases its elasticity, causing the lifting rod and elastic plate to move upwards relative to the lifting frame. Simultaneously, the cleaning brushes move to both sides, away from the dispensing tube.

[0018] This invention provides a positioning fixture for a dispensing machine. It has the following beneficial effects: 1. This invention employs a vacuum pump and suction cup negative pressure adsorption structure, combined with a mesh plate and soft rubber pad sealing design. The control system monitors the negative pressure in real time and alarms and stops the machine when abnormalities occur. It can achieve non-destructive and highly reliable fixation of flat parts and small workpieces, effectively avoids workpiece displacement during dispensing, and improves dispensing accuracy and product yield.

[0019] 2. This invention features an automatic cleaning mechanism consisting of an elastic plate, guide roller, cleaning brush, and spring reset. The mechanism is automatically triggered by the control system on a cycle. The cleaning brush is clamped and wiped by lifting limit and mechanical squeezing, which can quickly remove residual glue from the outer wall of the dispensing tube, prevent glue outlet blockage and glue stringing, and extend the service life of the dispensing tube. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the gantry frame of the present invention; Figure 3 This is a schematic diagram of the movable block of the present invention; Figure 4 This is a schematic diagram of the fixing frame of the present invention; Figure 5 This is a schematic diagram of the elastic plate of the present invention; Figure 6 This is a schematic diagram of the lifting frame of the present invention; Figure 7 This is a schematic diagram of the carrier plate of the present invention; Figure 8 This is a schematic diagram of the shelf of the present invention; Figure 9 This is a schematic diagram of the suction cup of the present invention.

[0021] The components are as follows: 1. Load-bearing plate; 2. Support base; 3. Slide groove; 4. Storage plate; 5. Slide rod; 6. Mesh plate; 7. Gantry frame; 8. Observation window; 9. First electric slide rail; 10. Fixed frame; 11. Lifting frame; 12. Movable rod; 13. Fixed base; 14. Electric push rod; 15. Locking block; 16. Connector; 17. Dispensing tube; 18. Opening; 19. Guide roller; 20. Lifting rod; 21. Connecting plate; 22. Spring; 23. Elastic plate; 24. Arc-shaped section; 25. Fixed clamp. 26. Cleaning brush; 27. Baffle; 28. Movable groove; 29. ​​Movable block; 30. Roller; 31. Rigid tube; 32. Limiting plate; 33. Delivery pump; 34. Glue bucket; 35. First hose; 36. Push plate; 37. Lead screw; 38. First stepper motor; 39. First slide rail; 40. Second electric slide rail; 41. Third electric slide rail; 42. Slider; 43. Suction cup; 44. Air tube head; 45. Protective shell; 46. Vacuum pump; 47. Second hose; 48. Delivery pipe. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Please see the appendix Figure 1 - Appendix Figure 6This invention provides a positioning fixture for a dispensing machine, including a support plate 1. A gantry frame 7 is fixedly connected to the upper side of the support plate 1. A support component is provided on the upper side of the support plate 1 inside the gantry frame 7. An observation window 8 is provided on the front side of the gantry frame 7. A first electric slide rail 9 is installed in the middle of the upper end of the gantry frame 7. A fixed frame 10 is installed on the lower side of the first electric slide rail 9. A lifting frame 11 is movably arranged on the right side of the fixed frame 10. Movable rods 12 are fixedly connected to both the front and rear ends of the lifting frame 11. The movable rods 12 are slidably connected to the front and rear sides of the fixed frame 10. A fixed seat 13 is fixedly connected to the upper left side of the fixed frame 10. An electric pusher is fixedly connected to the lower end of the fixed seat 13. The drive end of the electric push rod 14 is fixedly connected to the upper left side of the lower end of the lifting frame 11. A locking block 15 is fixedly connected to the notch on the right side of the lower end of the lifting frame 11. A conveying pipe 48 is fixedly connected to the upper side of the locking block 15. The lower end of the conveying pipe 48 passes through the locking block 15 and is fixedly connected to a connector 16. A dispensing tube 17 is fixedly connected to the lower end of the connector 16. Openings 18 are provided on both the front and rear sides of the locking block 15 on the right side of the lower end of the lifting frame 11. A guide roller 19 is rotatably connected to the inner side of the upper end of the opening 18. Lifting rods 20 are provided on both the front and rear sides of the upper end of the lifting frame 11. A connecting plate 21 is fixedly connected to the upper end of the lifting rods 20. The upper right side of the fixed frame 10 A baffle 27 is fixedly connected to the upper side of the connecting plate 21. A spring 22 is provided on the outside of the lifting rod 20, located below the connecting plate 21. An elastic plate 23 is fixedly connected to the lower end of the lifting rod 20. The lower end of the elastic plate 23 passes through the inside of the opening 18. A fixing clip 25 is fixedly connected to the lower end of the elastic plate 23. A cleaning brush 26 is fixedly connected to the inner side of the fixing clip 25. An arc-shaped section 24 is provided in the middle of the elastic plate 23. The arc-shaped section 24 is in close contact with the outer wall of the guide roller 19. A movable groove 28 is provided on the upper side of the gantry frame 7, located to the right of the first electric slide rail 9. A movable block 29 that moves back and forth is provided on the inner side of the movable groove 28. Both sides of the movable block 29 are rotatably connected to... Rollers 30 are movably connected to the slots on the left and right sides of the movable groove 28. A limiting plate 32 for limiting the movable block 29 is installed on the upper side of the gantry 7, located on the right side of the movable groove 28. A rigid guide tube 31 is fixedly connected to the middle of the movable block 29. The lower end of the rigid guide tube 31 is fixedly connected to the upper outside of the fixed seat 13. A support seat 2 is fixedly connected to the lower side of the bearing plate 1. A glue bucket 34 is provided on the inner side of the rear end of the support seat 2. A conveying pump 33 is installed at the rear end of the bearing plate 1. The feed pipe of the conveying pump 33 is connected to the inside of the glue bucket 34. A first flexible hose 35 is fixedly connected to the discharge port of the conveying pump 33. The end of the first flexible hose 35 is fixedly connected to the upper end of the rigid guide tube 31.

[0024] During the dispensing operation, the control system issues an action command according to a preset path, activating the electric push rod 14. The drive end of the electric push rod 14 extends at a constant speed, driving the lifting frame 11 to move downwards, thereby driving the delivery pipe 48, connector 16, and dispensing tube 17 to move downwards, ensuring that the dispensing tube 17 stably contacts the workpiece. The movable rod 12 is used to maintain the stability of the lifting frame 11's vertical movement. Subsequently, the control system synchronously drives the first electric slide rail 9 to link with the first stepper motor 38, causing the fixed frame 10 to move back and forth, thereby moving the dispensing tube 17 back and forth. The first stepper motor 38 drives the lead screw 37 to rotate, thereby causing the push plate 36 to move left and right, which in turn causes the workpieces on the upper side of the placement plate 4 and the mesh plate 6 to move left and right, precisely cooperating with the dispensing tube 17 that moves back and forth to complete the dispensing operation on the workpiece. As the dispensing operation proceeds, some glue will adhere to the outside of the glue outlet of the dispensing tube 17, which needs to be cleaned. The control system can automatically trigger the cleaning process according to the set number of times or time, and control the electric push rod 14 to drive the lifting frame 11 to rise, thereby driving the lifting rod 20 and the connecting plate 21 to rise, so that the connecting plate 21... When the baffle 27 contacts, the limit sensor feeds back the contact signal to the control system. The system controls the lifting frame 11 to continue moving upward for a set period of time. At this time, the connecting plate 21 remains stationary, thereby keeping the elastic plate 23 stationary. The rising lifting frame 11 compresses the spring 22 outside the lifting rod 20. At the same time, the arc-shaped segment 24 at the lower end of the stationary elastic plate 23 contacts the guide roller 19, thereby forcing the lower end of the elastic plate 23 to bend towards the middle, driving the cleaning brush 26 at the lower end to move towards the middle. The two cleaning brushes 26 clamp the dispensing tube 17, and then the dispensing tube 17 moves relative to the cleaning... The brush 26 moves upward to clean the dispensing tube 17. The end of the cleaning brush 26 is equipped with a sponge pad to absorb the glue and clean the dispensing tube 17. After cleaning, the control system controls the electric push rod 14 to drive the lifting frame 11 to descend. During the descent, the compressed spring 22 releases its elasticity, thereby driving the lifting rod 20 and the elastic plate 23 to move upward relative to the lifting frame 11. At the same time, the cleaning brush 26 moves to both sides and away from the dispensing tube 17. After the cleaning process is completed, the system automatically records the number of cleanings and prompts for regular replacement of the cleaning brush 26. The equipment returns to the dispensing state.

[0025] Please see the appendix Figure 1 Appendix Figure 7 - Appendix Figure 9The supporting component includes a slide groove 3 opened on the upper side of both the front and rear ends of a supporting plate 1. A shelf 4 is provided in the middle of the upper side of the supporting plate 1. Slide rods 5 are fixedly connected to the lower sides of both the front and rear ends of the shelf 4. The slide rods 5 are slidably connected to the inner side of the slide groove 3. A mesh plate 6 is fixedly connected to the inner side of the upper end of the shelf 4. A lead screw 37 is rotatably connected to the middle of the supporting plate 1. A push plate 36 is threaded to the outside of the lead screw 37. The end of the push plate 36 is fixedly connected to the left side of the shelf 4. A first stepper motor 38 is fixedly connected to the right side of the supporting plate 1. The drive end of the first stepper motor 38 is fixedly connected to the right end of the lead screw 37. First slide rails 39 are fixedly connected to the left and right sides of the inside of the shelf 4. The upper side of the slide rail 39 is slidably connected to the second electric slide rail 40. The inner right side of the shelf 4 is fixedly connected to the third electric slide rail 41, which is located to the left of the first slide rail 39. The driving end of the third electric slide rail 41 is fixedly connected to the lower side of the second electric slide rail 40. The driving end of the second electric slide rail 40 is equipped with a slider 42. The upper end of the slider 42 is fixedly connected to a suction cup 43. The lower front end of the suction cup 43 is fixedly connected to an air tube head 44. The front end of the shelf 4 is fixedly connected to a protective shell 45. The inner side of the protective shell 45 is fixedly connected to a vacuum pump 46. The rear end of the vacuum pump 46 is fixedly connected to a second hose 47. The rear end of the second hose 47 is fixedly connected to the end of the air tube head 44.

[0026] Before dispensing the adhesive to the workpiece, the workpiece to be dispensed is placed on the screen plate 6. Different placement methods are used for different workpieces. For flat workpieces, they are placed directly on the screen plate 6, while smaller workpieces are placed on a designated placement rack in an array. After placement, the PLC control system drives the third electric slide rail 41 to move the second electric slide rail 40 back and forth via a preset program. Simultaneously, the second electric slide rail 40 drives the slider 42 and suction cup 43 to move left and right, so that the suction cup 43 is precisely moved to the corresponding position below the workpiece. Then, the control system commands the vacuum pump 46 to generate a set negative pressure through the second hose 47, which adsorbs and fixes the workpiece through the perforations on the screen plate 6. A soft rubber pad is provided on the upper end of the suction cup 43 to increase the tightness and sealing between it and the lower side of the screen plate 6. The control system monitors the negative pressure value in real time. When it falls below the set threshold, it automatically alarms and pauses the operation to ensure reliable workpiece fixation. When performing the dispensing operation, the control system issues an action command according to the preset path to start the electric push rod 14. The electric push rod 14 extends at a constant speed, driving the lifting frame 11 to move downwards, thereby driving the conveying pipe 48, connector 16, and dispensing pipe 17 to move downwards, so that the dispensing pipe 17 can stably contact the workpiece. The movable rod 12 is set to maintain the stability of the lifting frame 11 moving up and down. Subsequently, the control system synchronously drives the first electric slide rail 9 and the first stepper motor 38 to achieve linkage. The first electric slide rail 9 drives the fixed frame 10 to move back and forth, thereby driving the dispensing pipe 17 to move back and forth. The first stepper motor 38 drives the lead screw 37 to rotate, thereby driving the push plate 36 to move left and right, and then driving the workpiece on the upper side of the placement plate 4 and the mesh plate 6 to move left and right, precisely cooperating with the dispensing pipe 17 moving back and forth, to complete the dispensing operation of the workpiece.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for a dispensing machine, characterized in that, The system includes a support plate (1), a gantry frame (7) is fixedly connected to the upper side of the support plate (1), a support component is provided on the upper side of the support plate (1) inside the gantry frame (7), an observation window (8) is provided on the front side of the gantry frame (7), a first electric slide rail (9) is installed in the middle of the upper end of the gantry frame (7), a fixed frame (10) is installed on the lower side of the first electric slide rail (9), a lifting frame (11) is movably arranged on the right side of the fixed frame (10), and movable rods (12) are fixedly connected to both the front and rear ends of the lifting frame (11). The movable rod (12) is slidably connected to the front and rear sides of the fixed frame (10). A fixed seat (13) is fixedly connected to the upper left side of the fixed frame (10). An electric push rod (14) is fixedly connected to the lower end of the fixed seat (13). The drive end of the electric push rod (14) is fixedly connected to the upper left side of the lower end of the lifting frame (11). A locking block (15) is fixedly connected to the notch on the lower right side of the lifting frame (11). A conveying pipe (48) is fixedly connected to the upper side of the locking block (15). The lower end of the conveying pipe (48) passes through the locking block (15). A connector (16) is fixedly connected to the upper end of the connector (16), and a rubber tube (17) is fixedly connected to the lower end of the lifting frame (11). An opening (18) is provided on both the front and rear sides of the locking block (15) on the lower right side of the lifting frame (11). A guide roller (19) is rotatably connected to the upper inner side of the opening (18). Lifting rods (20) are provided on both the front and rear sides of the upper end of the lifting frame (11). A connecting plate (21) is fixedly connected to the upper end of the lifting rods (20). The upper right side of the fixed frame (10) is fixedly connected to the upper side of the connecting plate (21). A baffle (27) is attached. A spring (22) is provided on the outside of the lifting rod (20) below the connecting plate (21). An elastic plate (23) is fixedly connected to the lower end of the lifting rod (20). The lower end of the elastic plate (23) passes through the inside of the opening (18). A fixing clip (25) is fixedly connected to the lower end of the elastic plate (23). A cleaning brush (26) is fixedly connected to the inside of the fixing clip (25). An arc-shaped section (24) is provided in the middle of the elastic plate (23). The arc-shaped section (24) is in close contact with the outer wall of the guide roller (19).

2. The positioning fixture for a dispensing machine according to claim 1, characterized in that, The upper side of the gantry (7) is provided with a movable groove (28) located on the right side of the first electric slide rail (9). The inner side of the movable groove (28) is provided with a movable block (29) that moves back and forth. Rollers (30) are rotatably connected to the left and right sides of the movable block (29). The rollers (30) are movably connected in the slots on the left and right sides of the movable groove (28).

3. The positioning fixture for a dispensing machine according to claim 1, characterized in that, The upper side of the gantry (7) is equipped with a limiting plate (32) for limiting the movable block (29) located on the right side of the movable slot (28). A rigid conduit (31) is fixedly connected to the middle of the movable block (29), and the lower end of the rigid conduit (31) is fixedly connected to the upper outside of the fixed seat (13).

4. The positioning fixture for a dispensing machine according to claim 3, characterized in that, A support base (2) is fixedly connected to the lower side of the bearing plate (1). A glue bucket (34) is provided on the inner side of the rear end of the support base (2). A conveying pump (33) is installed at the rear end of the bearing plate (1). The feed pipe of the conveying pump (33) is connected to the inside of the glue bucket (34).

5. The positioning fixture for a dispensing machine according to claim 4, characterized in that, The discharge port of the conveying pump (33) is fixedly connected to a first hose (35), and the end of the first hose (35) is fixedly connected to the upper end of the rigid conduit (31).

6. The positioning fixture for a dispensing machine according to claim 1, characterized in that, The supporting component includes a slide groove (3) opened on the upper side of the front and rear ends of the supporting plate (1), a shelf (4) is provided in the middle of the upper side of the supporting plate (1), and a slide rod (5) is fixedly connected to the lower side of the front and rear ends of the shelf (4). The slide rod (5) is slidably connected to the inner side of the slide groove (3) and a mesh plate (6) is fixedly connected to the inner side of the upper end of the shelf (4).

7. A positioning fixture for a dispensing machine according to claim 6, characterized in that, A lead screw (37) is rotatably connected to the middle of the bearing plate (1). A push plate (36) is threadedly connected to the outside of the lead screw (37). The end of the push plate (36) is fixedly connected to the left side of the shelf (4). A first stepper motor (38) is fixedly connected to the right side of the bearing plate (1). The drive end of the first stepper motor (38) is fixedly connected to the right end of the lead screw (37).

8. A positioning fixture for a dispensing machine according to claim 6, characterized in that, The inner left and right sides of the shelf (4) are fixedly connected to a first slide rail (39), and the upper side of the first slide rail (39) is slidably connected to a second electric slide rail (40). The inner right side of the shelf (4) is fixedly connected to a third electric slide rail (41) to the left side of the first slide rail (39), and the driving end of the third electric slide rail (41) is fixedly connected to the lower side of the second electric slide rail (40).

9. A positioning fixture for a dispensing machine according to claim 8, characterized in that, The second electric slide rail (40) has a slider (42) installed at the drive end. The upper end of the slider (42) is fixedly connected to a suction cup (43), and the lower front end of the suction cup (43) is fixedly connected to an air tube head (44).

10. A positioning fixture for a dispensing machine according to claim 8, characterized in that, A protective shell (45) is fixedly connected to the front end of the storage plate (4), and a vacuum pump (46) is fixedly connected to the inner side of the protective shell (45). A second hose (47) is fixedly connected to the rear end of the vacuum pump (46), and the rear end of the second hose (47) is fixedly connected to the end of the air tube head (44).

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