Screwing equipment for packaging bottle cap screwing robot

Abstract

The screwing equipment for the packaging bottle cap screwing robot comprises a storage barrel, a mounting plate is arranged at the top of an inner cavity of the storage barrel, the outer side wall of the mounting plate is connected with a servo motor through a bolt, a main rotor is arranged at the power output end of the servo motor, a supporting frame is arranged at the bottom of the storage barrel, and the supporting frame is connected with the mounting plate through a bolt. A rotating disc is arranged at the top of the supporting frame, the top of the rotating disc is connected with the outer side wall of the storage barrel, a connecting plate is arranged in an inner cavity of the supporting frame, an auxiliary rotor is arranged at the top of the connecting plate, and the main rotor is matched with the auxiliary rotor. The energy consumption is reduced, the service life of equipment is prolonged, the stability of the bottle cap in the screwing process is ensured, the bottle cap is prevented from sliding off, the clamp is convenient to replace and maintain, and the production cost is reduced; the applicability of the equipment is improved, and the requirements for the sizes and shapes of different bottle caps are met.

Description

Technical Field

[0001] The invention belongs to the technical field of bottle cap packaging, and in particular relates to a tightening device for a packaging bottle cap screw-on robot. Background Art

[0002] In traditional packaging bottle cap screwing robots, the tightening equipment usually relies on mechanical gears or friction wheels to tighten the bottle caps. However, these traditional methods have some shortcomings, such as easy damage to the bottle caps during the tightening process, low efficiency, and poor adaptability to the bottle caps. In addition, due to the complexity of the mechanical structure, the maintenance and repair of the equipment are also relatively difficult, which increases the production cost.

[0003] Therefore, it is necessary to propose a tightening device for a packaging bottle cap screwing robot to solve the above problems. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a tightening device for a packaging bottle cap screwing robot, which effectively solves the problem that in the traditional packaging bottle cap screwing robot in the background technology, the tightening device usually relies on mechanical gears or friction wheels to achieve the tightening of the bottle cap. However, these traditional methods have some shortcomings, such as easy damage to the bottle cap during the tightening process, low efficiency, and poor adaptability to the bottle cap. In addition, due to the complexity of the mechanical structure, the maintenance and repair of the equipment are also relatively difficult, which increases the problem of production cost.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tightening device for a packaging bottle cap screw-on robot, comprising a storage cylinder, a mounting plate is arranged on the top of the inner cavity of the storage cylinder, the outer wall of the mounting plate is connected to a servo motor by bolts, a main rotor is arranged at the power output end of the servo motor, a support frame is arranged on the bottom of the storage cylinder, a turntable is arranged on the top of the support frame, the top of the turntable is connected to the outer wall of the storage cylinder, a connecting plate is arranged in the inner cavity of the support frame, a secondary rotor is arranged on the top of the connecting plate, the main rotor and the secondary rotor match each other, a sliding frame is arranged on the bottom of the support frame, a clamp is arranged on the bottom of the sliding frame, and a mounting frame is arranged on the top of the support frame.

[0006] Preferably, limit plates are provided on both sides of the left and right sides of the sliding frame, first springs are provided on the outer sides of the limit plates, limit sliders are provided on both sides of the inner cavity of the sliding frame, the two groups of limit sliders are arranged in a mirror image, and the end of the first spring away from the limit plate is connected to the limit slider.

[0007] Preferably, the inner cavity of the sliding frame is provided with a connector, and the top of the connector passes through the sliding frame and is connected to a magnet disk.

[0008] Preferably, an electromagnetic disk is provided at the bottom of the connecting plate, and the electromagnetic disk and the magnetic disk are located in the same horizontal plane.

[0009] Preferably, the connecting head is located between the two groups of the limiting sliding blocks, trapezoidal sliding blocks are fixedly connected to both sides of the connecting head, trapezoidal grooves are cut on the outer side walls of the limiting sliding blocks, and the trapezoidal sliding blocks match the trapezoidal grooves.

[0010] Preferably, a clamp is provided at the bottom of the limiting sliding block, the inner cavity of the clamp is evenly cut with action grooves, and a fixing rod is provided inside the action groove.

[0011] Preferably, the inner cavity of the action groove is provided with a second spring, the top of the second spring is provided with a lifting slider, the inner cavity of the lifting slider is evenly chiseled with arc grooves, the inner cavity of the fixing rod is chiseled with a threaded groove, the inner cavity of the threaded groove is threaded with a screw, the top of the screw is chiseled with a polygonal groove, and the bottom of the screw is arranged in a circular arc.

[0012] Preferably, a circular groove is bored in the inner cavity of the screw, and limiting balls are arranged on both sides of the inner cavity of the circular groove. The limiting balls are located at the bottom of the screw, and the limiting balls match the arc groove.

[0013] Preferably, a limiting head is screwed to the bottom of the fixing rod, and a flat groove is cut on the outer side wall of the limiting head.

[0014] Preferably, the inner cavity of the mounting frame is connected to a first hydraulic cylinder by bolts, the power output end of the first hydraulic cylinder is connected to a push plate, the outer wall of the push plate is connected to a second hydraulic cylinder by bolts, the power output end of the second hydraulic cylinder is connected to a storage cylinder, a slide groove is drilled on the outer wall of the storage cylinder, and the turntable is rotatably connected to the inner cavity of the slide groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention realizes accurate tightening of the bottle cap and improves tightening efficiency by setting a power connection between the servo motor and the main rotor, and a magnetic coupling effect between the main rotor and the auxiliary rotor. At the same time, after the tightening device is rotated and fixed, even if the servo motor continues to rotate, the force generated will not damage the bottle cap, which greatly reduces the damage rate of the bottle cap and saves production costs.

[0017] 2. The present invention adopts a rotating connection mode between the turntable and the slide slot. Through the setting of the bearing, the friction force is reduced, the energy consumption is reduced, and the service life of the equipment is increased. At the same time, the setting of the sliding frame makes the rotation of the clamp more stable, further improving the tightening effect.

[0018] 3. The present invention realizes the opening and clamping of the clamp by setting the limit plate, the first spring and the limit slider, so that the bottle cap can be stably fixed between the clamps, avoiding the bottle cap from slipping off during the tightening process. At the same time, the oblique structure between the connector and the trapezoidal slider and the limit slider makes the clamping of the clamp more secure.

[0019] 4. The present invention realizes automatic resetting of the clamp by arranging a screw rod, a fixing rod and a lifting slider, which facilitates the replacement and maintenance of the clamp. At the same time, the design of the limit head makes the contact between the clamp and the bottle cap more stable, reducing the damage of the bottle cap. The arrangement of multiple sets of fixing rods facilitates the clamping of bottle caps of different shapes.

[0020] 5. The present invention realizes precise adjustment of the position of the clamp by setting the mounting frame, the first hydraulic cylinder and the second hydraulic cylinder, so that the tightening device can adapt to bottle caps of different sizes, thereby improving the applicability of the device.

[0021] 6. The present invention improves the efficiency of tightening the bottle caps and reduces the damage rate of the bottle caps; reduces energy consumption, increases the service life of the equipment, ensures the stability of the bottle caps during the tightening process, avoids the bottle caps from slipping, facilitates the replacement and maintenance of the clamps, and reduces the production cost; improves the applicability of the equipment and meets the requirements of different bottle cap sizes and shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0023] In the attached picture:

[0024] Figure 1 It is a structural schematic diagram of a tightening device for a packaging bottle cap screw-on robot according to the present invention;

[0025] Figure 2 This is a schematic diagram of the storage bucket structure of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the chute of the present invention;

[0027] Figure 4 It is a cross-sectional view of the storage bucket of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the limit slider of the present invention:

[0029] Figure 6 This is a schematic diagram of the structure of the fixing rod of the present invention:

[0030] Figure 7 It is a structural schematic diagram of the screw rod of the present invention;

[0031] Figure 8 It is a partial cross-sectional view of the clamp of the present invention.

[0032] In the figure: 1. storage tube; 11. mounting plate; 12. servo motor; 13. main rotor; 14. slide; 2. mounting frame; 21. first hydraulic cylinder; 22. push plate; 23. second hydraulic cylinder; 3. support frame; 31. turntable; 32. connecting plate; 33. auxiliary rotor; 34. electromagnetic disk; 35. sliding frame; 351. limit plate; 352. first spring; 353. limit slider; 3531. trapezoidal groove; 354. connector; 3541. magnet disk; 3542. trapezoidal slider; 4. fixture; 41. action groove; 411. lifting slider; 412. arc groove; 413. second spring; 42. fixing rod; 43. threaded groove; 44. screw; 441. polygonal groove; 442. limit ball; 45. limit head; 451. flat groove. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] The present invention aims to solve the problem that in the traditional packaging bottle cap screwing robot, the screwing device usually relies on mechanical gears or friction wheels to screw the bottle cap. However, these traditional methods have some shortcomings, such as easy damage to the bottle cap during the screwing process, low efficiency, and poor adaptability to the bottle cap. In addition, due to the complexity of the mechanical structure, the maintenance and repair of the equipment are also relatively difficult, which increases the production cost. Figure 1-Figure 8A tightening device for a packaging bottle cap screw-on robot is provided, comprising a storage cylinder 1, a mounting plate 11 is fixedly arranged on the top of the inner cavity of the storage cylinder 1, the outer wall of the mounting plate 11 is connected to a servo motor 12 by bolts, the mounting plate 11 is arranged to facilitate fixing and limiting the servo motor 12, a main rotor 13 is arranged at the power output end of the servo motor 12, a support frame 3 is arranged at the bottom of the storage cylinder 1, a turntable 31 is arranged on the top of the support frame 3, and the top of the turntable 31 is connected to the outer wall of the storage cylinder 1 A connecting plate 32 is provided in the inner cavity of the support frame 3, and a sub-rotor 33 is provided on the top of the connecting plate 32. The main rotor 13 and the sub-rotor 33 match each other, and a magnetic coupler is formed by the main rotor 13 and the sub-rotor 33, so that the main rotor 13 drives the sub-rotor 33 to rotate. A sliding frame 35 is fixedly provided at the bottom of the support frame 3, and a clamp 4 is fixedly provided at the bottom of the sliding frame 35. A mounting frame 2 is provided on the top of the support frame 3, and a slide groove 14 is drilled on the outer wall of the storage tube 1, and the turntable 31 is rotatably connected to the inner cavity of the slide groove 14.

[0035] During specific use, the main rotor 13 is first driven to rotate by the power output end of the servo motor 12, and the main rotor 13 drives the sub-rotor 33 to rotate during the rotation process, and a magnetic coupling effect is formed by the main rotor 13 rotating the sub-rotor 33, and the sub-rotor 33 drives the connecting plate 32 to rotate during the rotation process, and the connecting plate 32 drives the support frame 3 to rotate during the rotation process, and the support frame 3 drives the clamp 4 to rotate during the rotation, and the bottle cap is tightened by the rotation of the clamp 4, and the magnetic coupling effect is formed by the main rotor 13 rotating the sub-rotor 33, so that after the bottle cap is rotated and fixed, if the servo motor 12 also rotates therewith, the force generated will not damage the bottle cap, thereby reducing the damage rate of the bottle cap and increasing the efficiency of tightening the bottle cap, and by setting the power connection between the servo motor 2 and the main rotor 13, and the magnetic coupling effect between the main rotor 13 and the sub-rotor 33, the precise tightening of the bottle cap is achieved and the tightening efficiency is improved. At the same time, after the tightening device is rotated and fixed, even if the servo motor 2 continues to rotate, the force generated will not damage the bottle cap, which greatly reduces the damage rate of the bottle cap and saves production costs.

[0036] It should be noted that when the turntable 31 is rotatably connected to the slide slot 14 , the turntable 31 can be directly rotatably connected to the slide slot 14 through a bearing to reduce friction.

[0037] Furthermore, limit plates 351 are fixedly provided on the left and right sides of the sliding frame 35, and first springs 352 are fixedly provided on the outer sides of the limit plates 351. Limit sliders 353 are slidably provided on both sides of the inner cavity of the sliding frame 35. The two groups of limit sliders 353 are arranged in a mirror image. The end of the first spring 352 away from the limit plate 351 is connected to the limit slider 353. The first spring 352 is arranged to facilitate resetting the limit slider 353. A connector 354 is provided in the inner cavity of the sliding frame 35. The top of the connector 354 passes through the sliding frame 35 and is connected to a magnet disk 3541. An electromagnetic disk 34 is provided at the bottom of the connecting plate 32. The electromagnetic disk 34 generates magnetic force to push the magnet disk 3541 downward. The electromagnetic disk 34 and the magnet disk 3541 are located in the same horizontal plane.

[0038] When in use, the electromagnetic disk 34 is started, and the electromagnetic disk 34 generates a magnetic field after being energized. The working principle of magnetic field repulsion is used to push the magnetic disk 3541 downward. The magnetic disk 3541 pushes the two groups of limit sliders 353 to move in the opposite direction during the downward movement, thereby driving the two groups of clamps 4 to open and clamp the bottle cap. When the bottle cap is located between the two groups of clamps 4, the electromagnetic disk 34 is changed to the magnetic pole direction. Under the thrust of the first spring 352, the connector 354 moves upward to tighten the bottle cap. By setting the limit plate 351, the first spring 352 and the limit slider, the opening and clamping of the clamp are realized, so that the bottle cap can be stably fixed between the clamps, and the bottle cap is prevented from slipping during the tightening process. At the same time, the oblique wedge structure between the connector 354 and the trapezoidal slider 3542 and the limit slider 353 makes the clamping of the clamp more secure.

[0039] Furthermore, the connector 354 is located between the two sets of limit sliders 353 , and trapezoidal sliders 3542 are fixedly connected to both sides of the connector 354 . The outer wall of the limit slider 353 is formed with a trapezoidal groove 3531 , and the trapezoidal slider 3542 matches the trapezoidal groove 3531 .

[0040] During specific use, the trapezoidal slider 3542 and the trapezoidal groove 3531 cooperate to form an oblique wedge structure, so that two sets of limit sliders 353 can move inwards and clamp at the same time.

[0041] Further, a clamp 4 is provided at the bottom of the limiting slider 353, and an inner cavity of the clamp 4 is evenly cut with an action groove 41, and a fixing rod 42 is provided inside the action groove 41, and a second spring 413 is fixedly provided in the inner cavity of the action groove 41, and a lifting slider 411 is fixedly provided on the top of the second spring 413, and an arc groove 412 is evenly cut in the inner cavity of the lifting slider 411, and the setting of the arc groove 412 facilitates the matching of the limiting ball 442, and a threaded groove 43 is cut in the inner cavity of the fixing rod 42, and a screw 4 is screwed in the inner cavity of the threaded groove 43. 4. A polygonal groove 441 is chiseled on the top of the screw 44, which is engaged with the polygonal groove 441 through a tool. The screw 44 is rotated by turning the polygonal groove 441. The bottom of the screw 44 is arranged in an arc shape. A circular groove is chiseled in the inner cavity of the screw 44. Limiting balls 442 are arranged on both sides of the inner cavity of the circular groove. The limiting balls 442 are located at the bottom of the screw 44. The limiting balls 442 match the arc groove 412. The bottom of the fixing rod 42 is screwed with a limiting head 45, and a flat groove 451 is chiseled on the outer wall of the limiting head 45.

[0042] When in use, first insert the fixing rod 42 into the action groove 41. Figure 8 As shown, when the fixing rod 42 is fully inserted into the action groove 41, the fixing rod 42 is located in the action groove 41 under the setting of the polygonal limiting piece on the top of the fixing rod 42. At this time, the arc groove 412 and the limiting ball 442 are located on the same horizontal plane, and then the polygonal groove 441 is engaged with the fixing rod 42 through a tool. The polygonal groove 441 is rotated to realize the rotation of the screw rod 44. The screw rod 44 moves downward during the rotation, pushing the two limiting balls 442 to move outward, so that the limiting balls 442 are located in the arc groove 412, so that the fixing rod 42 is engaged with the lifting slider 411, and the lifting slider 411 is moved by moving the fixing rod 42. Under the action of the second spring 413, the fixing rod 42 can be automatically reset. Figure 8 As shown, when the screw 44 rotates and moves upward, the two limiting balls 442 move inward without force, so that the fixing rod 42 is out of the action groove 41, which is convenient for repairing and replacing the fixing rods 42 of different lengths. When the fixing rod 42 is used for a long time, the limiting head 45 is easily damaged due to the long-term contact with the bottle cap. The setting of the flat groove 451 facilitates the disassembly and replacement of the limiting head 45 to reduce resource waste. By setting the screw 44, the fixing rod 42 and the lifting slider 411, the automatic resetting of the clamp is realized, which facilitates the replacement and maintenance of the clamp. At the same time, the design of the limiting head 45 makes the contact between the clamp and the bottle cap more stable, reduces the damage of the bottle cap, and the setting of multiple groups of fixing rods facilitates the clamping of bottle caps of different shapes.

[0043] Furthermore, the inner cavity of the mounting frame 2 is connected to the first hydraulic cylinder 21 by bolts, the power output end of the first hydraulic cylinder 21 is connected to the push plate 22, the outer wall of the push plate 22 is connected to the second hydraulic cylinder 23 by bolts, and the power output end of the second hydraulic cylinder 23 is connected to the storage tube 1.

[0044] During specific use, the mounting frame 2 is first installed on the limiting device, and the second hydraulic cylinder 23 is pushed forward and backward through the setting of the first hydraulic cylinder 21, and the storage tube 1 is pushed up and down through the setting of the second hydraulic cylinder 23, so as to facilitate the movement of the position of the clamp 4.

[0045] Working principle: First, install the mounting frame 2 on the limiting device, and push the second hydraulic cylinder 23 to move forward and backward through the setting of the first hydraulic cylinder 21. Push the storage tube 1 to move up and down through the setting of the second hydraulic cylinder 23, so as to facilitate the movement of the position of the clamp 4. The main rotor 13 is driven to rotate by the power output end of the servo motor 12. The main rotor 13 drives the auxiliary rotor 33 to rotate during the rotation process. The main rotor 13 rotates the auxiliary rotor 33 to form a magnetic coupling effect. The auxiliary rotor 33 drives the connecting plate 32 to rotate during the rotation process. The connecting plate 32 rotates During the process, the support frame 3 is driven to rotate, and the support frame 3 drives the clamp 4 to rotate during the rotation, and the bottle cap is tightened by the rotation of the clamp 4. The main rotor 13 rotates the sub-rotor 33 to form a magnetic coupling effect, so that after the bottle cap is rotated and fixed, if the servo motor 12 also rotates, the force generated will not damage the bottle cap, thereby reducing the damage rate of the bottle cap and increasing the efficiency of tightening the bottle cap. By setting the power connection between the servo motor 2 and the main rotor 13, and the magnetic coupling effect between the main rotor 13 and the sub-rotor 33, the precise tightening of the bottle cap is achieved and the tightening efficiency is improved. At the same time, after the tightening device is rotated and fixed, even if the servo motor 2 continues to rotate, the force generated will not damage the bottle cap, which greatly reduces the damage rate of the bottle cap and saves production costs. By starting the electromagnetic disk 34, the electromagnetic disk 34 generates a magnetic field after being energized. The working principle of magnetic field repulsion is used to push the magnet disk 3541 to move downward. During the downward movement, the magnet disk 3541 pushes the two groups of limit sliders 353 to move in the opposite direction, thereby driving the two groups of clamps 4 to open and clamp the bottle cap. When the bottle cap is located between the two groups of clamps 4, the electromagnetic disk 34 is used to change the magnetic pole direction. Under the thrust of the first spring 352, the connector 354 moves upward to tighten the bottle cap. By setting the limit plate 351, the first spring 352 and the limit slider, the opening and clamping of the clamp are realized, so that the bottle cap can be stably fixed between the clamps, avoiding the bottle cap from slipping during the tightening process. At the same time, the oblique structure between the connector 354 and the trapezoidal slider 3542 and the limit slider 353 makes the clamping of the clamp more secure. Insert the fixing rod 42 into the action groove 41, as shown in FIG. Figure 8As shown, when the fixing rod 42 is fully inserted into the action groove 41, the fixing rod 42 is located in the action groove 41 under the setting of the polygonal limiting piece on the top of the fixing rod 42. At this time, the arc groove 412 and the limiting ball 442 are located on the same horizontal plane, and then the polygonal groove 441 is engaged with the fixing rod 42 through a tool. The polygonal groove 441 is rotated to realize the rotation of the screw rod 44. The screw rod 44 moves downward during the rotation, pushing the two limiting balls 442 to move outward, so that the limiting balls 442 are located in the arc groove 412, so that the fixing rod 42 is engaged with the lifting slider 411, and the lifting slider 411 is moved by moving the fixing rod 42. Under the action of the second spring 413, the fixing rod 42 can be automatically reset. Figure 8 As shown, when the screw 44 rotates and moves upward, the two limiting balls 442 move inward without force, so that the fixing rod 42 is out of the action groove 41, which is convenient for repairing and replacing the fixing rods 42 of different lengths. When the fixing rod 42 is used for a long time, the limiting head 45 is easily damaged due to the long-term contact with the bottle cap. The setting of the flat groove 451 facilitates the disassembly and replacement of the limiting head 45 to reduce resource waste. By setting the screw 44, the fixing rod 42 and the lifting slider 411, the automatic resetting of the clamp is realized, which facilitates the replacement and maintenance of the clamp. At the same time, the design of the limiting head 45 makes the contact between the clamp and the bottle cap more stable, reduces the damage of the bottle cap, and the setting of multiple groups of fixing rods facilitates the clamping of bottle caps of different shapes.

Claims

1. A tightening device for a packaging bottle cap screwing robot, comprising a storage cylinder (1), characterized in that: A mounting plate (11) is arranged at the top of the inner cavity of the storage cylinder (1), and the outer wall of the mounting plate (11) is connected to the servo motor (12) by bolts. A main rotor (13) is arranged at the power output end of the servo motor (12). A support frame (3) is arranged at the bottom of the storage cylinder (1), and a turntable (31) is arranged at the top of the support frame (3). The top of the turntable (31) is connected to the outer wall of the storage cylinder (1). A connecting plate (32) is arranged in the inner cavity of the support frame (3), and a secondary rotor (33) is arranged at the top of the connecting plate (32). The main rotor (13) and the secondary rotor (33) match each other. A sliding frame (35) is arranged at the bottom of the support frame (3), and a clamp (4) is arranged at the bottom of the sliding frame (35). A mounting frame (2) is arranged at the top of the support frame (3).

2. The tightening device for a packaging bottle cap screw-on robot according to claim 1, characterized in that: Limiting plates (351) are arranged on both left and right sides of the sliding frame (35), first springs (352) are arranged on the outer sides of the limiting plates (351), limiting sliders (353) are arranged on both sides of the inner cavity of the sliding frame (35), and the two groups of limiting sliders (353) are arranged in a mirror image, and one end of the first spring (352) away from the limiting plate (351) is connected to the limiting slider (353).

3. The tightening device for a packaging bottle cap screw-on robot according to claim 2, characterized in that: The inner cavity of the sliding frame (35) is provided with a connecting head (354), and the top of the connecting head (354) passes through the sliding frame (35) and is connected to a magnet disk (3541).

4. The tightening device for a packaging bottle cap screw-on robot according to claim 3, characterized in that: An electromagnetic disk (34) is provided at the bottom of the connecting plate (32), and the electromagnetic disk (34) and the magnetic disk (3541) are located on the same horizontal plane.

5. The tightening device for a packaging bottle cap screwing robot according to claim 3, characterized in that: The connecting head (354) is located between the two groups of the limiting sliders (353), and both sides of the connecting head (354) are fixedly connected with trapezoidal sliders (3542). The outer wall of the limiting slider (353) is cut with a trapezoidal groove (3531), and the trapezoidal slider (3542) matches the trapezoidal groove (3531).

6. The tightening device for a packaging bottle cap screw-on robot according to claim 5, characterized in that: A clamp (4) is arranged at the bottom of the limiting sliding block (353), and an inner cavity of the clamp (4) is evenly cut with action grooves (41), and a fixing rod (42) is arranged inside the action groove (41).

7. The tightening device for a packaging bottle cap screw-on robot according to claim 6, characterized in that: The inner cavity of the action groove (41) is provided with a second spring (413), the top of the second spring (413) is provided with a lifting slider (411), the inner cavity of the lifting slider (411) is evenly chiseled with arc grooves (412), the inner cavity of the fixing rod (42) is chiseled with a thread groove (43), the inner cavity of the thread groove (43) is threaded with a screw rod (44), the top of the screw rod (44) is chiseled with a polygonal groove (441), and the bottom of the screw rod (44) is arranged in a circular arc.

8. The tightening device for a packaging bottle cap screw-on robot according to claim 7, characterized in that: A circular groove is bored in the inner cavity of the screw rod (44), and limiting balls (442) are arranged on both sides of the inner cavity of the circular groove. The limiting balls (442) are located at the bottom of the screw rod (44), and the limiting balls (442) match the arc groove (412).

9. The tightening device for a packaging bottle cap screw-on robot according to claim 7, characterized in that: The bottom of the fixing rod (42) is screwed to a limiting head (45), and the outer side wall of the limiting head (45) is chiseled with a flat groove (451).

10. The tightening device for a packaging bottle cap screw-on robot according to claim 1, characterized in that: The inner cavity of the mounting frame (2) is connected to a first hydraulic cylinder (21) by bolts, the power output end of the first hydraulic cylinder (21) is connected to a push plate (22), the outer wall of the push plate (22) is connected to a second hydraulic cylinder (23) by bolts, the power output end of the second hydraulic cylinder (23) is connected to the storage cylinder (1), the outer wall of the storage cylinder (1) is provided with a slide groove (14), and the turntable (31) is rotatably connected to the inner cavity of the slide groove (14).

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