Automatic screwing device for bottle body and bottle cap

Abstract

The utility model relates to the technical field of automatic production, and discloses an automatic screwing device for bottle bodies and bottle caps, which comprises at least one group of bottle body stabilizing clamping jaws and bottle cap screwing clamping jaws, the bottle body stabilizing clamping jaws are fixed on a clamping jaw driving component, and the bottle cap screwing clamping jaws are arranged on a rotary driving component; the bottle body stabilizing gripper and the bottle cap screwing clamping jaw are both arranged on the longitudinal driving assembly, and the longitudinal driving assembly is arranged on the transverse driving assembly. The transverse driving assembly drives the longitudinal driving assembly and the bottle stabilizing gripper and the bottle cap screwing clamping jaw which are arranged on the longitudinal driving assembly to move in the conveying direction of the bottle body conveying line, the conveying speed of the bottle cap screwing clamping jaw is consistent with the conveying speed of the bottle body conveying line, and the longitudinal driving assembly drives the bottle stabilizing clamping jaw and the bottle cap screwing clamping jaw to move up and down. Compared with the prior art, the whole screwing device is controlled to move along with the transmission line while screwing caps, and automatic cap screwing operation under non-stop transmission is achieved.

Description

Technical Field

[0001] This utility model relates to the field of automated production technology, specifically to an automated bottle cap screwing device. Background Technology

[0002] Filling technology is widely used in food, chemical, pharmaceutical, agricultural breeding, and laboratory research industries. Filling is an integral part of industrial production, requiring the filling of products such as paints, pigments, cosmetics, and cosmetics. For example, in the production of lotions, skincare products, and makeup, capping the filled bottles is necessary. Currently, these steps require manual operation. When producing large quantities of canned cosmetics, manual operation not only reduces production efficiency but also increases labor costs. Therefore, there is a need for automated cosmetic filling production lines to achieve large-scale production and meet the demands of automation.

[0003] There are also automated capping machines on the market, but existing automated machines often require the conveyor belt to stop before using a screwing device to screw the caps, which greatly affects production efficiency. Utility Model Content

[0004] Purpose of the utility model: In view of the problems existing in the prior art, this utility model provides an automated bottle cap screwing device that controls the entire screwing equipment to move along the conveyor line while screwing on the cap, so as to realize automated capping operation without stopping the transmission.

[0005] Technical Solution: This utility model provides an automated bottle cap screwing device, including at least one set of bottle stabilizing grippers and bottle cap screwing grippers. The bottle stabilizing grippers are fixed on a gripper driving assembly, and the bottle cap screwing grippers are disposed on a rotary driving assembly. The bottle stabilizing grippers and bottle cap screwing grippers are both disposed on a longitudinal driving assembly, which is disposed on a transverse driving assembly. The transverse driving assembly drives the longitudinal driving assembly and the bottle stabilizing grippers and bottle cap screwing grippers disposed thereon to move along the transmission direction of the bottle conveyor line, and the transmission speed is the same as the transmission speed of the bottle conveyor line. The longitudinal driving assembly drives the bottle stabilizing grippers and bottle cap screwing grippers to move up and down.

[0006] Furthermore, the gripper drive assembly is a bidirectional telescopic cylinder, and the actuator end of the bidirectional telescopic cylinder is provided with a bottle-stabilizing gripper.

[0007] Furthermore, the rotary drive assembly includes a servo motor, a gripping cylinder, a pulley assembly, and a rotating shaft. The servo motor is connected to the rotating shaft via the pulley assembly. The upper end of the rotating shaft is connected to the gripping cylinder via a bearing, and the lower end is connected to a tapered column that is narrower at the bottom and wider at the top. The side of the tapered column is in rotatable contact with a pair of bottle cap screwing claws, and the upper end of the bottle cap screwing claws is limited and fixed to a limiting sleeve via a rubber ring. The limiting sleeve is sleeved on the outside of the tapered column. A spring is also sleeved on the rotating shaft, with the upper end of the spring fixed to the rotating shaft and the lower end fixed to the upper end of the limiting sleeve.

[0008] Furthermore, the tapered column and the rotating shaft are also provided with a connecting rod that does not rotate with the tapered column and the rotating shaft. The end of the connecting rod is clamped and connected to a limit rod by a clamping plate. The end of the clamping cylinder is provided with a sleeve. The lower end of the sleeve is connected to the rotating shaft by a bearing. The connecting rod extends into the sleeve. The side of the sleeve is provided with a limit groove. The upper end of the connecting rod is connected to a limit post. The limit post is inserted into the limit groove.

[0009] Furthermore, the longitudinal drive assembly includes a first drive motor, a first gear, and a first rack. The output shaft of the first drive motor is connected to the first gear, the first gear meshes with the vertically arranged first rack, and a gripper drive assembly and a rotary drive assembly are connected to the first rack via a first connecting plate.

[0010] Furthermore, the longitudinal drive assembly also includes a pair of longitudinal slide rails, with both ends of the first connecting plate slidably connected to the pair of longitudinal slide rails.

[0011] Furthermore, the lateral drive assembly includes a second drive motor, a second gear, and a second rack. The output shaft of the second drive motor is connected to the second gear, the second gear meshes with the laterally arranged second rack, and a longitudinal drive assembly is connected to the second rack via a second connecting plate.

[0012] Furthermore, the lateral drive assembly also includes a pair of lateral slide rails, and the second connecting plate is slidably connected to the pair of lateral slide rails on both sides.

[0013] Furthermore, the bottle stabilizing gripper is also provided with a height adjustment mechanism, which includes a clamping block fixed to the first connecting plate, a lead screw passing through the clamping block, and the lead screw being threadedly connected to the gripper driving assembly through the third connecting plate.

[0014] Furthermore, a pair of guide rods also pass through the clamping block, and the lower ends of the pair of guide rods are connected to the third connecting plate.

[0015] Beneficial effects

[0016] 1. This utility model separates the bottle body and bottle cap for gripping. The bottle body is fixed by a bottle body stabilizing gripper, and the bottle cap twisting gripper grips the bottle cap to rotate it. The vertical drive component enables the bottle body stabilizing gripper and the bottle cap twisting gripper to move up and down. While the bottle body and bottle cap are gripped separately, the horizontal drive component enables the bottle body to move with the bottle conveyor line. This allows the bottle cap twisting operation to be completed without stopping the conveyor line, which greatly improves work efficiency.

[0017] 2. In order to achieve bottle stability, this utility model uses a bidirectional telescopic cylinder to extend and retract two bottle-stabilizing grippers, which can grasp and limit the bottle.

[0018] 3. The rotary drive assembly of this utility model uses a servo motor to rotate the rotating shaft. The rotation of the rotating shaft drives the bottle cap screwing jaws mounted on it to rotate, thus performing the screwing operation. The gripping cylinder extends and retracts, causing the bottle cap screwing jaws to rotate on the side of the conical column. During rotation, the bottle cap screwing jaws retract and expand. The conical column is designed to be narrower at the bottom and wider at the top. When the conical column moves downward, the bottle cap screwing jaws open; when the conical column moves upward, the bottle cap screwing jaws retract. During the screwing process, the rotating shaft rotates. One end of the spring is mounted on the rotating shaft, and the other end is connected to the sleeve below, causing the spring to be rotated and compressed. This causes the limiting sleeve at the end of the spring to be driven downward to cover a certain screwing stroke.

[0019] 4. The conical column of this utility model is provided with a connecting rod at the end. The connecting rod does not rotate with the conical column. In this way, during the overall rotation of the rotating shaft, the clamping plate and the limiting rod at the end of the connecting rod do not rotate. This allows the pump head to be limited when screwing on a bottle cap with a pump head.

[0020] 5. In order to ensure that the connecting rod does not rotate with the conical column, a limiting groove is provided in the sleeve at the end of the clamping cylinder. The limiting column connected to the connecting rod is directly inserted into the limiting groove. During the rotation of the rotating shaft, the connecting rod does not rotate with the outer rotating shaft under the action of the limiting column, thus achieving the limiting function.

[0021] 6. This utility model uses a first rack to drive the first connecting plate to move up and down, thus realizing the up and down movement of the overall bottle-stabilizing gripper and the bottle cap screwing gripper. Additionally, a pair of longitudinal slide rails are provided on both sides of the first connecting plate to serve a guiding function.

[0022] 7. This utility model uses the second rack to drive the second connecting plate to move left and right, thereby realizing the left and right movement of the overall bottle body stabilizing gripper and the bottle cap screwing gripper. In addition, a pair of transverse slide rails are set on both sides of the second connecting plate to play a guiding role.

[0023] 8. The height adjustment mechanism of the bottle-stabilizing gripper in this utility model can appropriately adjust the height of the bottle-stabilizing gripper. When the stamp on the bottle is too high, the height of the bottle-stabilizing gripper can be appropriately lowered. This utility model achieves the up-and-down adjustment of the gripper drive component by turning a lead screw, thereby adjusting the height of the bottle-stabilizing gripper.

[0024] 9. The guide rod set inside the clamping block in this utility model plays a guiding role during the adjustment process using the lead screw. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the longitudinal drive mechanism of this utility model;

[0027] Figure 3 This is a schematic diagram of the transverse drive mechanism of this utility model;

[0028] Figure 4 This is a schematic diagram of the bottle cap screwing gripper and its rotation drive assembly of the present invention;

[0029] Figure 5 This is a partial detailed drawing of the bottle cap screwing gripper and its rotation drive assembly of this utility model;

[0030] Figure 6 This is a magnified view of the details of the bottle cap screwing gripper of this utility model;

[0031] Figure 7 This is a schematic diagram of the height adjustment mechanism of this utility model.

[0032] Among them, 1-bottle body stabilizing gripper, 2-bottle cap screwing gripper, 3-bottle body conveyor line, 4-bottle body, 5-bidirectional telescopic cylinder, 6-servo motor, 7-gripping cylinder, 8-pulley assembly, 9-rotating shaft, 10-conical column, 11-rubber ring, 12-limiting sleeve, 13-spring, 14-connecting rod, 15-clamping plate, 16-limiting rod, 17-casing, 18-limiting slot, 19-limiting column, 20-first drive motor, 21-first gear, 22-first rack, 23-first connecting plate, 24-longitudinal slide rail, 25-second drive motor, 26-second gear, 27-second rack, 28-second connecting plate, 29-transverse slide rail, 30-clamping block, 31-lead screw, 32-guide rod, 33-third connecting plate. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0034] This utility model discloses an automated bottle cap screwing device, see [link to relevant documentation]. Figures 1 to 7 The system includes at least one set of bottle-stabilizing grippers 1 and bottle-cap-screwing grippers 2. The bottle-stabilizing grippers 1 are fixed to the gripper drive assembly, and the bottle-cap-screwing grippers 2 are mounted on the rotary drive assembly. Both the bottle-stabilizing grippers 1 and the bottle-cap-screwing grippers 2 are mounted on the longitudinal drive assembly, which is mounted on the transverse drive assembly. The transverse drive assembly drives the longitudinal drive assembly and the bottle-stabilizing grippers 1 and bottle-cap-screwing grippers 2 mounted thereon to move along the transmission direction of the bottle conveyor line 3 at the same speed as the bottle conveyor line 3. The longitudinal drive assembly drives the bottle-stabilizing grippers 1 and bottle-cap-screwing grippers 2 to move up and down.

[0035] In this embodiment, two sets of bottle stabilizing grippers 1 and bottle cap screwing grippers 2 are provided. Each set of bottle stabilizing grippers 1 includes two bottle stabilizing grippers 1. The gripper driving component is a bidirectional telescopic cylinder 5. The execution end of the bidirectional telescopic cylinder 5 is provided with a set of bottle stabilizing grippers 1. The bidirectional telescopic cylinder 5 extends and retracts to achieve the clamping of the two bottle stabilizing grippers 1.

[0036] The rotary drive assembly includes a servo motor 6, a gripping cylinder 7, a pulley assembly 8, and a rotating shaft 9. The servo motor 6 is connected to the rotating shaft 9 via the pulley assembly 8, which includes a drive pulley, a driven pulley, and a belt. When the servo motor 6 operates, it drives the drive pulley to rotate, which in turn drives the driven pulley to rotate via the belt. The rotating shaft 9 is connected to the driven pulley, and the rotation of the driven pulley drives the rotating shaft 9 to rotate. The upper end of the rotating shaft 9 is connected to the gripping cylinder 7 via a bearing, and the lower end is connected to a tapered column 10 that is narrower at the bottom and wider at the top. The side of the tapered column 10 rotatably contacts a pair of bottle cap screwing claws 2, and the upper end of the bottle cap screwing claws 2 is limited and fixed to a limiting sleeve 12 by a rubber ring 11. The limiting sleeve 12 is fitted on the outside of the tapered column 10. A spring 13 is also fitted on the rotating shaft 9, with its upper end fixed to the rotating shaft 9 and its lower end fixed to the upper end of the limiting sleeve 12. The side of the tapered column 10 and the pair of bottle cap screwing claws 2 are in rotatable contact via bearings.

[0037] When the bottle cap is being screwed on, the gripping cylinder 7 extends and retracts, causing the bottle cap screwing jaw 2 to rotate on the conical column 10. When the conical column 10 moves downward, the bottle cap screwing jaw 2 opens because the upper end of the conical column 10 is thicker. When the conical column 10 moves upward, the bottle cap screwing jaw 2 retracts because the lower end of the conical column 10 is narrower, thus achieving the gripping operation of the bottle cap screwing jaw 2. After gripping, the servo motor 6 drives the rotating shaft 9 to rotate. During the rotation, the lower end of the bottle cap screwing jaw 2 rotates. At this time, the spring 13 is deformed and compressed. In order to return to its state, the limiting sleeve 12 at the lower end of the spring 13 drives the bottle cap screwing jaw 2 downward by a certain stroke. During the spring's return process, the downward stroke of the bottle cap is covered.

[0038] In addition, for cosmetic bottles 4, some cosmetic bottles 4 have pump heads on the caps. Therefore, a connecting rod 14 that does not rotate with the conical column 10 and the rotating shaft 9 is also provided through the conical column 10 and the rotating shaft 9. The end of the connecting rod 14 is clamped and connected to a limit rod 16 through a clamping plate 15. The end of the clamping cylinder 7 is provided with a housing 17. The lower end of the housing 17 is connected to the rotating shaft 9 through a bearing. The connecting rod 14 extends into the housing 17. A limit groove 18 is provided on the side of the housing 17. The upper end of the connecting rod 14 is connected to a limit post 19. The limit post 19 is inserted into the limit groove 18.

[0039] During the rotation of the rotating shaft 9, the connecting rod 14 in the middle acts as a limiter because the limiting post 19 is inserted into the limiting slot 18. Therefore, it does not rotate with the conical column 10 and the rotating shaft 9. When the clamping cylinder 7 extends and retracts, it drives the sleeve 17 below it to move up and down, thus realizing the up and down movement of the entire conical column 10 and the rotating shaft 9. The lower end of the sleeve 17 is connected to the rotating shaft 9 through a bearing, and the rotation of the rotating shaft 9 does not affect the fixed limit of the sleeve 17. During the screwing process, the end of the connecting rod 14 can have slight contact with the limiting rod 16 connected by the clamping plate 15, or leave a small gap, which limits the pump head. During the rotation of the bottle cap, the pump head does not rotate with it.

[0040] See Figure 2 To enable the bottle-stabilizing gripper 1 and the cap-screwing gripper 2 to grasp the bottle, or to accommodate different bottle types 4, the bottle-stabilizing gripper 1 and the cap-screwing gripper 2 are mounted on a longitudinal drive assembly, which includes a first drive motor 20, a first gear 21, and a first rack 22. The output shaft of the first drive motor 20 is connected to the first gear 21, and the first gear 21 meshes with the vertically arranged first rack 22. The gripper drive assembly and the rotary drive assembly are connected to the first rack 22 via a first connecting plate 23. The longitudinal drive assembly also includes a pair of longitudinal slide rails 24, and the two ends of the first connecting plate 23 are slidably connected to the pair of longitudinal slide rails 24.

[0041] See Figure 3 To ensure that the bottle-stabilizing gripper 1 and the cap-screwing gripper 2 can grip the bottle without affecting the transport of the bottle on the conveyor line, the entire longitudinal drive assembly, including the bottle-stabilizing gripper 1 and the cap-screwing gripper 2, is mounted on the transverse drive assembly. This assembly includes a second drive motor 25, a second gear 26, and a second rack 27. The output shaft of the second drive motor 25 is connected to the second gear 26, which meshes with the transversely positioned second rack 27. The longitudinal drive assembly is connected to the second rack 27 via a second connecting plate 28. The transverse drive assembly also includes a pair of transverse slide rails 29, with the second connecting plate 28 slidably connected to the pair of transverse slide rails 29 on both sides.

[0042] For different bottle bodies 4, the distance between the cap and the body is variable. Some caps are quite tall, so the height of the bottle body stabilizing gripper 1 needs to be adjusted accordingly. Therefore, the bottle body stabilizing gripper 1 is mounted on a height adjustment mechanism. The height adjustment mechanism includes a clamping block 30 fixed to the first connecting plate 23. A lead screw 31 passes through the clamping block 30, and the lead screw 31 is threadedly connected to the gripper drive assembly via the third connecting plate 33. A pair of guide rods 32 also pass through the clamping block 30, and the lower ends of the guide rods 32 are connected to the third connecting plate 33. A rotating handle is provided at the upper end of the lead screw 31. The rotation of the lead screw 31 is controlled by rotating the handle, thereby controlling the up and down adjustment of the third connecting plate 33 and its gripper drive assembly (bidirectional telescopic cylinder).

[0043] Working principle:

[0044] 1. Start the bottle conveyor line 3 to transport the bottle 4 with the cap to the position for screwing on the cap.

[0045] 2. Start the longitudinal drive mechanism (first drive motor 20) to control the bottle body stabilizing gripper 1 and the bottle cap screwing gripper 2 to move down to the bottle body position.

[0046] 3. The clamping cylinder 7 retracts upward, and the bottle cap screwing jaw 2 clamps the bottle cap.

[0047] 4. While driving the servo motor 6, the bidirectional telescopic cylinder 5 is also driven. The servo motor 6 drives the bottle cap screwing gripper 2 to grip the bottle cap and rotate it downwards. The bidirectional telescopic cylinder 5 drives the bottle body stabilizing gripper 1 to hold the bottle body 4 and keep it stable while screwing.

[0048] 5. While screwing on the bottle cap and clamping the bottle, the second drive motor 25 is activated, causing the entire structure to move along the bottle conveyor line 3. After screwing and clamping are completed, the second drive motor 25 moves in the opposite direction, causing the entire structure to return to the starting point to continue the next round of operation.

[0049] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automated bottle cap screwing device, characterized in that, It includes at least one set of bottle body stabilizing gripper (1) and bottle cap screwing gripper (2). The bottle body stabilizing gripper (1) is fixed on the gripper driving assembly, and the bottle cap screwing gripper (2) is set on the rotary driving assembly. The bottle body stabilizing gripper (1) and the bottle cap screwing gripper (2) are both set on the longitudinal driving assembly, which is set on the transverse driving assembly. The transverse driving assembly drives the longitudinal driving assembly and the bottle body stabilizing gripper (1) and the bottle cap screwing gripper (2) set on it to move along the transmission direction of the bottle conveying line (3) and the transmission speed is the same as the transmission speed of the bottle conveying line (3). The longitudinal driving assembly drives the bottle body stabilizing gripper (1) and the bottle cap screwing gripper (2) to move up and down.

2. The automated bottle cap screwing device according to claim 1, characterized in that, The gripper drive assembly is a bidirectional telescopic cylinder (5), and the actuator of the bidirectional telescopic cylinder (5) is provided with a bottle stabilizing gripper (1).

3. The automated bottle cap screwing device according to claim 1, characterized in that, The rotary drive assembly includes a servo motor (6), a gripping cylinder (7), a pulley assembly (8), and a rotating shaft (9). The servo motor (6) is connected to the rotating shaft (9) through the pulley assembly (8). The upper end of the rotating shaft (9) is connected to the gripping cylinder (7) through a bearing, and the lower end is connected to a tapered column (10) that is narrow at the bottom and thick at the top. The side of the tapered column (10) is in rotatable contact with a pair of bottle cap screwing claws (2), and the upper end of the bottle cap screwing claws (2) is fixed to the limiting sleeve (12) through a rubber ring (11). The limiting sleeve (12) is sleeved on the outside of the tapered column (10). A spring (13) is also sleeved on the rotating shaft (9). The upper end of the spring (13) is fixed on the rotating shaft (9), and the lower end is fixed to the upper end of the limiting sleeve (12).

4. The automated bottle cap screwing device according to claim 3, characterized in that, The conical column (10) and the rotating shaft (9) are also provided with a connecting rod (14) that does not rotate with the conical column (10) and the rotating shaft (9). The end of the connecting rod (14) is clamped and connected to a limiting rod (16) by a clamping plate (15). The end of the clamping cylinder (7) is provided with a sleeve (17). The lower end of the sleeve (17) is connected to the rotating shaft (9) by a bearing. The connecting rod (14) extends into the sleeve (17). The side of the sleeve (17) is provided with a limiting groove (18). The upper end of the connecting rod (14) is connected to a limiting post (19). The limiting post (19) is inserted into the limiting groove (18).

5. The automated bottle cap screwing device according to claim 1, characterized in that, The longitudinal drive assembly includes a first drive motor (20), a first gear (21), and a first rack (22). The output shaft of the first drive motor (20) is connected to the first gear (21). The first gear (21) meshes with the vertically arranged first rack (22). The first rack (22) is connected to a gripper drive assembly and a rotary drive assembly via a first connecting plate (23).

6. The automated bottle cap screwing device according to claim 5, characterized in that, The longitudinal drive assembly also includes a pair of longitudinal slide rails (24), and the two ends of the first connecting plate (23) are slidably connected to the pair of longitudinal slide rails (24).

7. The automated bottle cap screwing device according to claim 1, characterized in that, The lateral drive assembly includes a second drive motor (25), a second gear (26), and a second rack (27). The output shaft of the second drive motor (25) is connected to the second gear (26). The second gear (26) meshes with the laterally arranged second rack (27). A longitudinal drive assembly is connected to the second rack (27) via a second connecting plate (28).

8. The automated bottle cap screwing device according to claim 7, characterized in that, The lateral drive assembly also includes a pair of lateral slide rails (29), and the second connecting plate (28) is slidably connected to the pair of lateral slide rails (29) on both sides.

9. The automated bottle cap screwing device according to claim 5, characterized in that, The bottle stabilizing gripper (1) is also provided with a height adjustment mechanism, which includes a clamping block (30) fixed on the first connecting plate (23), a lead screw (31) passing through the clamping block (30), and the lead screw (31) and the gripper driving assembly are threadedly connected through the third connecting plate (33).

10. The automated bottle cap screwing device according to claim 9, characterized in that, A pair of guide rods (32) also pass through the clamping block (30), and the lower ends of the pair of guide rods (32) are connected to the third connecting plate (33).

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