Vacuum glue filling production line

Abstract

The embodiment of the invention provides a vacuum glue filling production line, and relates to the technical field of vacuum glue filling equipment, the vacuum glue filling production line comprises a rack, a feeding station and a discharging station, the feeding station and the discharging station are arranged on the rack, a vacuum glue filling and pressure maintaining integrated station is arranged on the rack, and auxiliary vacuumizing stations are arranged on the upstream side and the downstream side of the vacuum glue filling and pressure maintaining integrated station. The two auxiliary vacuumizing stations are connected with the feeding station and the discharging station correspondingly, the vacuum glue filling and pressure maintaining integrated station comprises a vacuum box installed on the rack, a vacuum pump and a glue filling device are arranged on the vacuum box, and a plurality of moving stations used for supporting trays and parts are arranged in the vacuum box. A pressure maintaining conveying device is arranged in the vacuum box and used for transferring the moving stations, so that the empty moving stations are transferred to the position below the glue pouring device, and the glue-poured parts are transferred to a downstream auxiliary vacuumizing station after being transported for a certain time. The glue filling device has the effect of improving the glue filling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum glue pouring equipment, in particular to a vacuum glue pouring production line. Background Art

[0002] A vacuum glue dispensing machine dispenses glue in a vacuum environment. Its biggest difference from conventional glue dispensing machines lies in the vacuum extraction process, which directly affects product quality. It's primarily used in industries such as automotive manufacturing and capacitor coil dispensing. The machine also boasts excellent recyclability, improving production efficiency.

[0003] Existing vacuum glue potting machines require the entire equipment to be evacuated before operation. They are divided into three stations, including the loading station, the unloading station, and the vacuum glue potting station. The three stations are relatively independent, and the vacuum glue potting station is equipped with a vacuum device. The parts are placed on a tray. When the tray drives the parts from the loading station to the vacuum glue potting station, the vacuum treatment is carried out by the vacuum device, and then the glue is injected into the parts by the glue injection device. In order to ensure the quality of glue potting and at the same time not affect the normal glue potting operation of the next part, a vacuum pressure holding station is usually installed downstream of the vacuum glue potting station. After glue potting, the vacuum pressure is maintained and the glued parts are removed from the unloading station.

[0004] Regarding the above-mentioned related technologies, the inventor believes that during the glue pouring process, the above-mentioned device needs to first move the products out of the vacuum pressure holding station, and then transfer the products of the vacuum glue pouring station to the vacuum pressure holding station. However, the pressure holding time of the vacuum pressure holding station is often longer than the glue pouring time of the vacuum glue pouring station, so it will also affect the production efficiency of the vacuum glue pouring station. Summary of the Invention

[0005] In order to solve the problem that the vacuum pressure holding time is too long and affects the production efficiency of the vacuum glue pouring station, the present application provides a vacuum glue pouring production line.

[0006] The vacuum glue filling production line provided in this application adopts the following technical solutions:

[0007] A vacuum glue pouring production line comprises a frame and a loading station and an unloading station arranged on the frame, the frame is provided with a vacuum glue pouring and pressure-maintaining integrated station, and auxiliary vacuum pumping stations are provided on both upstream and downstream sides of the vacuum glue pouring and pressure-maintaining integrated station, and the two auxiliary vacuum pumping stations are connected to the corresponding loading station and unloading station, the vacuum glue pouring and pressure-maintaining integrated station comprises a vacuum box installed on the frame, the vacuum box is provided with a vacuum pump and a glue pouring device, a number of movable stations for supporting pallets and parts are provided in the vacuum box, a pressure-maintaining conveying device is provided in the vacuum box, and the pressure-maintaining conveying device is used to transfer the movable station, so that the empty movable station is transferred to the bottom of the glue pouring device, and the glued parts are transferred to the downstream auxiliary vacuum pumping station after being transported for a certain period of time.

[0008] Preferably, the pressure-maintaining conveying device includes a closed guide rail, two driving flywheels are rotatably connected on the inner side of the guide rail, and a driving chain is provided on the driving flywheel that surrounds the driving flywheel. The movable station is slidingly set on the guide rail and fixed on the driving chain, and slides on the track together with the driving chain. A driving motor for driving one of the driving flywheels to rotate is provided in the vacuum box, and the driving motor is a stepping motor. A conveyor belt for transferring the pressure-maintained parts to the downstream auxiliary vacuum station is also provided in the vacuum box. The pressure-maintaining conveying device also includes a conveying transfer mechanism that enables the parts to leave the movable station and enter the conveyor belt.

[0009] Preferably, the mobile workstation includes a base slidably set on a guide rail and fixed on a chain, the base is connected to a support seat, and a support rod moving in a vertical direction is slidably set on the base, the upper end of the support rod is hinged to the lower surface of the support seat, and a support spring is sleeved on the support rod, and the two ends of the support spring are respectively fixed on the base and the support seat. When the support spring is in a natural state, the support seat is horizontally set, and a number of vibration balls are embedded in the downstream position of the guide rail near the glue pouring device. The support rod passes through the base, and the lower end abuts on the guide rail, and drives the support seat to vibrate up and down under the action of the vibration balls.

[0010] Preferably, a dovetail groove is provided on the upper surface of the support seat, which extends from the loading end toward the end away from the loading end. The bottom of the tray for supporting parts is fixed with several dovetail blocks that are slidably arranged in the dovetail groove and prevent the tray from leaving the support seat.

[0011] Preferably, an abutment channel is provided in the support seat, and the abutment channel is inclined downward from the loading end toward the loading end. An abutment ball is installed in the abutment channel, and under the action of gravity, the abutment ball rolls to the bottom of the abutment channel. A sliding groove connected to the lowest point of the abutment channel is vertically provided on the support seat, and a sliding block is slidingly provided in the sliding groove. The side wall of the sliding block is provided with an arc-shaped surface for pushing the sliding block to move toward the sliding groove during the tray loading process. When the abutment ball slides to the lowest point of the abutment channel, the abutment ball pushes the sliding block to move upward and prevents the dovetail block from moving out of the dovetail groove.

[0012] Preferably, the conveying and transferring mechanism includes a blanking plate arranged at the blanking end, the blanking plate is located between the base and the support seat, and the upper end surface of the blanking plate is provided with an inclined guide surface. When the support seat slides on the blanking plate, the guide surface pushes the support seat to tilt toward the conveyor belt, the abutment ball separates from the sliding block, and the dovetail block moves out of the dovetail groove.

[0013] Preferably, the glue filling device includes a glue storage hopper fixed in a vacuum box, the glue storage hopper is connected to a glue upper tube for different glues to enter the glue storage hopper, the bottom of the glue storage hopper is connected to a glue storage barrel, the glue storage hopper is rotatably connected with a stirring shaft, the glue storage hopper is fixed with a stirring motor for driving the stirring shaft to rotate, the stirring shaft is fixed with a stirring blade for stirring the glue in the glue storage hopper, the stirring shaft is rotatably and sealedly connected to the inner wall of the lower end of the glue storage hopper, a circulation channel is provided in the stirring shaft, and a connecting hole is provided on the stirring shaft to connect the circulation channel and allow the mixed glue to flow from the glue storage hopper to the glue storage barrel. The glue filling device also includes a unloading mechanism for allowing the glue in the glue storage barrel to flow to the parts below.

[0014] Preferably, the stirring shaft extends into the glue storage barrel, and an auxiliary blade is fixed on the stirring shaft inside the glue storage barrel. A filter screen is fixed in the glue storage barrel for filtering and dispersing glue. The unloading mechanism includes a driving gear fixed to the lower end of the stirring shaft, and the filter screen is rotatably connected to a driven gear meshing with the driving gear. The diameter of the driven gear is larger than the diameter of the driving gear. A unloading barrel coaxial with the driven gear is connected to the bottom of the glue storage barrel, and a unloading shaft is coaxially fixed on the driven gear, and a spiral blade for unloading is fixed on the unloading shaft.

[0015] Preferably, a sealed end cover is fixed to the bottom of the discharge barrel, a plurality of discharge troughs are provided on the end cover, a contact cover abutting against the upper end face of the end cover is fixed to the discharge shaft, a plurality of discharge holes corresponding to and staggered with the discharge troughs are provided on the abut cover, the discharge shaft drives the abut cover to rotate, and when the discharge hole is aligned with the discharge trough, the glue is discharged.

[0016] To sum up, the present application includes at least one of the following beneficial technical effects: the parts are placed on the pallet, and the parts pass through the loading station and the auxiliary vacuum station in turn and then enter the vacuum glue pouring station. Through the glue pouring device, the glue enters the part, and the driving motor drives the driving flywheel to rotate a certain angle. The next idle moving station is transferred to the bottom of the glue pouring station. During the transfer process, the glue-filled parts first pass through the vibration of the vibrating ball and the support rod, and gradually move toward the unloading station. Pressure is maintained during the transfer process, thereby improving the overall processing efficiency of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0018] Figure 2 It is a structural diagram of a pressure-maintaining conveying device.

[0019] Figure 3 It is a structural diagram of a mobile workstation.

[0020] Figure 4 It is a structural diagram of the glue filling device.

[0021] Figure 5 It is a structural diagram of the end cover.

[0022] Explanation of the accompanying symbols: 1. Frame; 2. Loading station; 3. Vacuum filling and pressure maintaining integrated station; 4. Unloading station; 5. Auxiliary vacuum pumping station; 6. Vacuum box; 7. Moving station; 8. Guide rail; 9. Driving flywheel; 10. Driving chain; 11. Conveyor belt; 12. Base; 13. Support seat; 14. Support rod; 15. Support spring; 16. Vibrating ball; 17. Dovetail groove; 18. Dovetail block; 19. Abutment ball; 20. Sliding block; 21. Unloading plate; 22. Glue storage hopper; 23. Glue storage cylinder; 24. Glue feeding tube; 25. Stirring shaft; 26. Stirring motor; 27. Circulation channel; 28. Connecting hole; 29. ​​Filter; 30. Stirring blade; 31. Driving gear; 32. Driven gear; 33. Unloading shaft; 34. Spiral blade; 35. End cover; 36. Abutment cover; 37. Unloading chute. DETAILED DESCRIPTION

[0023] The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification of this application and the appended claims, the singular expressions "a", "an", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the following embodiments of the present application, "at least one", "one or more" refer to one, two or more. The term "and / or" is used to describe the association relationship of associated objects, indicating that three relationships can exist; for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0024] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0025] The following is combined with Figure 1-5 This application is described in further detail.

[0026] Reference Figure 1 A vacuum glue pouring production line includes a frame 1 and a loading station 2, a vacuum glue pouring and pressure-maintaining integrated station 3 and a unloading station 4 arranged on the frame 1 in sequence. Auxiliary vacuum pumping stations 5 are arranged on the upstream and downstream sides of the vacuum glue pouring and pressure-maintaining integrated station 3. The two auxiliary vacuum pumping stations 5 are connected to the corresponding loading station 2 and unloading station 4. The vacuum glue pouring and pressure-maintaining integrated station 3 includes a vacuum box 6 installed on the frame 1, and the vacuum box 6 is provided with a vacuum pump and a glue pouring device.

[0027] The auxiliary vacuum pumping station 5 is provided to prevent the vacuum glue pouring and pressure maintaining integrated station 3 from being frequently opened and closed due to processes such as feeding and discharging, thereby affecting the efficiency of vacuum glue pouring.

[0028] Auxiliary vacuum pumping station 5, vacuum glue filling station adopts the combination of multi-stage Roots vacuum pump and rotary vane vacuum pump, which can quickly remove a large amount of air in the glue filling chamber.

[0029] Reference Figure 2 and Figure 3 The vacuum box 6 is provided with several mobile stations 7 for supporting and transporting pallets and parts. The vacuum box 6 is provided with a pressure-maintaining conveying device. The pressure-maintaining conveying device is used to transfer the mobile station 7, so that the empty mobile station 7 is transferred to the bottom of the glue filling device, and the glued parts are moved in the vacuum box 6 through the mobile station 7. Vacuum pressure maintenance is performed during the movement. When the glued parts are transferred to the unloading end, the vacuum pressure maintenance of the parts is completed. Glue filling and pressure maintenance are carried out simultaneously in the vacuum box 6, and the glue filling efficiency will not be affected by the pressure maintenance time problem.

[0030] Reference Figure 2 The pressure-maintaining conveying device includes a closed guide rail 8, which is an annular guide rail 8. The two ends of the guide rail 8 are semicircular, and the middle is two sections of linear guide rails connecting the semicircles. The feeding end is at one of the semicircular ends of the guide rail 8. Two driving flywheels 9 are rotatably connected to the inside of the guide rail 8. A driving chain 10 is provided on the driving flywheel 9, which surrounds the two driving flywheels 9. The shape of the driving chain 10 is the same as that of the guide rail 8. The mobile station 7 is slidably set on the guide rail 8 and fixed on the driving chain 10. The mobile station 7 slides on the track with the driving chain 10. A driving motor is provided in the vacuum box 6. The output shaft of the driving motor is coaxially fixedly connected to one of the driving flywheels 9. The driving motor is a stepping motor. Every time the driving motor rotates a certain angle, the next mobile station 7 is transferred to the bottom of the glue filling device. A conveyor belt 11 and a conveying and transferring mechanism are provided in the vacuum box 6. The conveyor belt 11 is parallel to the straight section on the guide rail 8. The mobile station 7 moves along with the drive chain 10. After the holding time is satisfied, it is transferred to the conveyor belt 11 through the action of the conveying and transferring mechanism, and then transferred to the downstream auxiliary vacuum pumping station 5 through the conveyor belt 11.

[0031] Reference Figure 2 and Figure 3The mobile station 7 includes a base 12 slidingly arranged on the guide rail 8, the base 12 is fixedly connected to the drive chain 10, and a support seat 13 is connected to the base 12. A support rod 14 is slidably arranged on the base 12, and the support rod 14 is vertically arranged and slides relative to the base 12 in the vertical direction. The upper end of the support rod 14 is hinged to the lower surface of the support seat 13 by a hinge, and a support spring 15 is sleeved on the support rod 14. The two ends of the support spring 15 are respectively fixedly connected to the base 12 and the support seat 13. When the support spring 15 is in a natural state, the support seat 13 is horizontally arranged. When the mobile station 7 moves to the loading position, when external force acts, the support seat 13 can tilt downward toward the loading end side, so as to facilitate the movement of the pallet to the mobile station 7. A number of vibrating balls 16 are embedded in the downstream position of the guide rail 8 near the glue pouring device. The vibrating balls 16 are located on the upper surface of the guide rail 8. The support rod 14 passes through the base 12 downward, and the lower end of the support rod 14 abuts against the guide rail 8. When the moving station 7 moves, the lower end of the support rod 14 slides alternately on the guide rail 8 and the balls, driving the support seat 13 to vibrate up and down, so as to facilitate the even distribution of glue inside the parts.

[0032] Reference Figure 2 and Figure 3 A dovetail groove 17 is provided on the upper surface of the support seat 13, and the dovetail groove 17 extends from the loading end toward the end away from the loading end. A dovetail block 18 is fixed to the bottom of the tray for supporting the parts. When the parts enter the vacuum box 6 from the auxiliary vacuum equipment, the tray drives the parts to slide onto the support seat 13, and the dovetail block 18 slides into the dovetail groove 17 to prevent the tray from separating from the support seat 13.

[0033] Reference Figure 2 and Figure 3 Abutment channel is provided in the support seat 13, and the abutment channel is inclined downward from the loading end toward the loading end. Abutment ball 19 is installed in the abutment channel, and the abutment ball 19 rolls to the bottom of the abutment channel under the action of gravity. A sliding groove is vertically provided on the support seat 13, and the sliding groove is connected to the lowest point of the abutment channel. A sliding block 20 is slidingly provided in the sliding groove, and an arc-shaped surface is provided on the side wall of the sliding block 20. On the one hand, it is convenient to push the sliding block 20 toward the sliding groove during the tray loading process, and on the other hand, it is convenient for the abutment ball 19 to push the sliding block 20 toward the outside of the sliding groove.

[0034] During the loading process, the tray and the parts on the tray first contact the edge of the loading end of the support seat 13, the support seat 13 rotates a certain amount, and the abutment ball 19 moves in the direction away from the sliding block 20, which facilitates the tray to slide onto the support seat 13. Even if the end of the sliding block 20 protrudes out of the sliding groove, due to the large overall mass of the tray and the parts, and the setting of the curved surface, it is also convenient for the tray to push the sliding block 20 toward the sliding groove. When the tray enters the designated position on the support seat 13, the support seat 13 is set horizontally, which is convenient for the glue filling device to fill glue. At the same time, under the action of gravity, the abutment ball 19 pushes the end of the sliding block 20 to protrude out of the sliding groove and abut against the side wall of the dovetail block 18 to prevent the tray from detaching from the support seat 13 during vibration.

[0035] Reference Figure 2 and Figure 3 The conveying and transfer mechanism includes a blanking plate 21 mounted at the unloading end, located between the base 12 and the support seat 13. The upper end of the blanking plate 21 is provided with an inclined guide surface. When the support seat 13 slides on the blanking plate 21, the guide surface pushes the support seat 13 toward the conveyor belt 11, causing the contact ball 19 to separate from the sliding block 20, which moves into the sliding groove. The dovetail block 18 moves out of the dovetail groove 17, driving the tray and the parts on the tray into the conveyor belt 11, achieving automatic unloading. The position of the blanking plate 21 can be adaptively adjusted for different products, thereby changing the holding time of the parts in the vacuum chamber 6.

[0036] Reference Figure 1 and Figure 4 The glue filling device includes a glue storage hopper 22 fixed in the vacuum box 6, and the glue storage hopper 22 is connected to a glue upper pipe 24 for different glues to enter the glue storage hopper 22, and the bottom of the glue storage hopper 22 is connected to a glue storage cylinder 23. A stirring shaft 25 is coaxially and rotatably connected in the glue storage hopper 22, and the stirring shaft 25 extends into the glue storage cylinder 23. The outer wall of the stirring shaft 25 is rotatably and sealedly connected to the inner wall of the lower end of the glue storage hopper 22, and a stirring motor 26 for driving the stirring shaft 25 to rotate is fixed on the glue storage hopper 22, and a stirring blade 30 for stirring the glue in the glue storage hopper 22 is fixed on the stirring shaft 25.

[0037] Reference Figure 4 A circulation channel 27 is coaxially opened in the stirring shaft 25, and a connecting hole 28 connected to the circulation channel 27 is opened on the side wall of the stirring shaft 25. The connecting hole 28 includes a feed hole located in the glue storage hopper 22 and a discharge hole located in the glue storage barrel 23. The preliminarily mixed glue enters the circulation channel 27 from the feed hole and then enters the glue storage barrel 23 from the discharge hole. A spiral groove is opened on the inner wall of the circulation channel 27 to facilitate the re-mixing of different glues. The stirring shaft 25 extends into the glue storage barrel 23. Auxiliary blades are fixed on the stirring shaft 25 located in the glue storage barrel 23. A filter screen 29 for filtering and dispersing glue is fixed in the glue storage barrel 23.

[0038] Reference Figure 4 and Figure 5 The glue filling device also includes a discharge mechanism that directs the glue in the glue storage cylinder 23 toward the component below. This discharge mechanism includes a drive gear 31 fixed to the lower end of the stirring shaft 25. A driven gear 32, which meshes with the drive gear 31 and is rotatably connected to the filter screen 29, is rotated. The driven gear 32 has a diameter much larger than that of the drive gear 31, ensuring that the angular velocity of the stirring shaft 25 is much greater than that of the driven gear 32, thereby facilitating sufficient mixing of the glue. A discharge barrel is fixedly connected to the bottom of the glue storage cylinder 23, coaxial with the driven gear 32. A discharge shaft 33 is coaxially fixed to the driven gear 32, and a spiral blade 34 for discharge is fixed to the discharge shaft 33.

[0039] Reference Figure 4 and Figure 5 A sealed end cover 35 is fixed to the bottom of the discharge barrel, and a number of discharge grooves 37 are provided on the end cover 35. A contact cover 36 is fixed to the discharge shaft 33, which abuts against the upper end surface of the end cover 35. The abutment cover 36 is provided with a number of discharge holes corresponding to and staggered with the discharge grooves 37. The discharge shaft 33 drives the abutment cover 36 to rotate. When the discharge hole is aligned with the discharge groove 37, the glue is discharged. When the discharge hole is misaligned with the discharge groove 37, the glue is prevented from flowing out.

[0040] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A vacuum glue filling production line, comprising a frame (1) and a loading station (2) and a unloading station (4) arranged on the frame (1), characterized in that: The frame (1) is provided with a vacuum glue-filling and pressure-maintaining integrated station (3), and auxiliary vacuum pumping stations (5) are provided on both the upstream and downstream sides of the vacuum glue-filling and pressure-maintaining integrated station (3). The two auxiliary vacuum pumping stations (5) are connected to the corresponding loading station (2) and unloading station (4). The vacuum glue-filling and pressure-maintaining integrated station (3) includes a vacuum box (6) installed on the frame (1), and the vacuum box (6) is provided with a vacuum pump and a glue-filling device. A plurality of movable stations (7) for supporting trays and parts are provided in the vacuum box (6), and a pressure-maintaining conveying device is provided in the vacuum box (6). The pressure-maintaining conveying device is used to transfer the movable station (7) so that the empty movable station (7) is transferred to the bottom of the glue-filling device, and the glue-filled parts are transferred to the downstream auxiliary vacuum pumping station (5) after being transported for a certain period of time.

2. The vacuum glue filling production line according to claim 1, characterized in that: The pressure-maintaining conveying device includes a closed guide rail (8), two driving flywheels (9) are rotatably connected inside the guide rail (8), and a driving chain (10) is provided on the driving flywheel (9) that surrounds the driving flywheel (9). The movable station (7) is slidably arranged on the guide rail (8) and fixed on the driving chain (10), and slides on the track together with the driving chain (10). A driving motor for driving one of the driving flywheels (9) to rotate is provided in the vacuum box (6), and the driving motor is a stepping motor. A conveyor belt (11) for transferring the pressure-maintained parts to the downstream auxiliary vacuum station (5) is also provided in the vacuum box (6). The pressure-maintaining conveying device also includes a conveying transfer mechanism for making the parts leave the movable station (7) and enter the conveyor belt (11).

3. The vacuum glue filling production line according to claim 2, characterized in that: The movable station (7) includes a base (12) which is slidably arranged on the guide rail (8) and fixed on the chain, the base (12) is connected to a support seat (13), and a support rod (14) which moves in a vertical direction is slidably arranged on the base (12), the upper end of the support rod (14) is hinged to the lower surface of the support seat (13), and a support spring (15) is sleeved on the support rod (14), and the two ends of the support spring (15) are respectively fixed on the base (12) and the support seat (13). When the support spring (15) is in a natural state, the support seat (13) is horizontally arranged, and a plurality of vibration balls (16) are embedded in the downstream position of the guide rail (8) near the glue filling device. The support rod (14) passes through the base (12), and the lower end abuts on the guide rail (8), and drives the support seat (13) to vibrate up and down under the action of the vibration balls (16).

4. The vacuum glue filling production line according to claim 3, characterized in that: The upper surface of the support seat (13) is provided with a dovetail groove (17), which extends from the loading end toward the end away from the loading end. The bottom of the tray for supporting the parts is fixed with a plurality of dovetail blocks (18) which are slidably arranged in the dovetail groove (17) and prevent the tray from separating from the support seat (13).

5. The vacuum glue filling production line according to claim 4, characterized in that: An abutment channel is provided in the support seat (13), and the abutment channel is inclined downward from the loading end toward the loading end. An abutment ball (19) is installed in the abutment channel. Under the action of gravity, the abutment ball (19) rolls to the bottom of the abutment channel. A sliding groove is vertically provided on the support seat (13) and is connected to the lowest point of the abutment channel. A sliding block (20) is slidingly provided in the sliding groove. The side wall of the sliding block (20) is provided with an arc surface for pushing the sliding block (20) toward the sliding groove during the tray loading process. When the abutment ball (19) slides to the lowest point of the abutment channel, the abutment ball (19) pushes the sliding block (20) to move upward and prevents the dovetail block (18) from moving out of the dovetail groove (17).

6. The vacuum glue filling production line according to claim 5, characterized in that: The conveying and transferring mechanism includes a blanking plate (21) arranged at the blanking end, the blanking plate (21) is located between the base (12) and the support seat (13), and the upper end surface of the blanking plate (21) is provided with an inclined guide surface. When the support seat (13) slides on the blanking plate (21), the support seat (13) is pushed to tilt toward the conveyor belt (11) under the action of the guide surface, the abutting ball (19) is separated from the sliding block (20), and the dovetail block (18) moves toward the outside of the dovetail groove (17).

7. The vacuum glue filling production line according to claim 6, characterized in that: The glue filling device comprises a glue storage hopper (22) fixed in the vacuum box (6), the glue storage hopper (22) is connected to a glue pipe (24) for different glues to enter the glue storage hopper (22), the bottom of the glue storage hopper (22) is connected to a glue storage cylinder (23), the glue storage hopper (22) is rotatably connected to a stirring shaft (25), the glue storage hopper (22) is fixed with a stirring motor (26) for driving the stirring shaft (25) to rotate, and the stirring shaft (25) is fixed with a stirring motor for the glue storage hopper ( The invention relates to a glue filling device comprising a mixing blade (30) for stirring the glue in the glue storage hopper (22), the mixing shaft (25) being rotatably and sealedly connected to the inner wall of the lower end of the glue storage hopper (22), the mixing shaft (25) being provided with a circulation channel (27), the mixing shaft (25) being provided with a connecting hole (28) for communicating with the circulation channel (27) and allowing the mixed glue to flow from the glue storage hopper (22) to the glue storage cylinder (23), and the glue filling device further comprising a feeding mechanism for allowing the glue in the glue storage cylinder (23) to flow to the parts below.

8. The vacuum glue filling production line according to claim 7, characterized in that: The stirring shaft (25) extends into the glue storage barrel (23), and an auxiliary blade is fixed on the stirring shaft (25) located in the glue storage barrel (23). A filter screen (29) for filtering and dispersing glue is fixed in the glue storage barrel (23). The unloading mechanism includes a driving gear (31) fixed to the lower end of the stirring shaft (25), and a driven gear (32) meshing with the driving gear (31) is rotatably connected to the filter screen (29). The driven gear (32) has a diameter larger than that of the driving gear (31). A unloading barrel coaxial with the driven gear (32) is connected to the bottom of the glue storage barrel (23), and a unloading shaft (33) is coaxially fixed on the driven gear (32). A spiral blade (34) for unloading is fixed on the unloading shaft (33).

9. The vacuum glue filling production line according to claim 8, characterized in that: A sealed end cover (35) is fixed to the bottom of the discharge barrel, and a plurality of discharge grooves (37) are provided on the end cover (35). A contact cover (36) is fixed on the discharge shaft (33) and contacts the upper end surface of the end cover (35). A plurality of discharge holes corresponding to and staggered with the discharge grooves (37) are provided on the contact cover (36). The discharge shaft (33) drives the contact cover (36) to rotate, and when the discharge holes are aligned with the discharge grooves (37), the glue is discharged.

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