Cap screwing device of cap screwing machine

Abstract

The utility model discloses a cap screwing device of a cap screwing machine, and relates to the technical field of cap screwing machines, both sides of a support are connected with movable frames in a sliding mode, and idler wheels are connected below the movable frames in a rotating mode. A telescopic mechanism is fixedly connected to the middle of the support, a transmission frame is arranged between the two movable frames, the transmission frame is driven by the telescopic mechanism to ascend and descend, the two ends of the transmission frame are slidably connected with the two movable frames through inclined grooves respectively, and the transmission frame is used for driving the two movable frames to be close to or away from each other; the device further comprises a pressing plate which is driven by a telescopic mechanism to ascend and descend. According to the cap screwing device of the cap screwing machine, the movable frame and the pressing plate are driven by the telescopic mechanism to move, the number of used air cylinders is reduced, the machining cost is reduced, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of capping machines, in particular to a capping device of a capping machine. Background Art

[0002] There are many types of capping machines on the domestic and international markets, but they are generally divided into two types based on their capping method: claw-type capping machines and wheel-type capping machines. Claw-type capping machines are early products of capping machines. The capping part is completed by a mechanical arm grasping the bottle cap and rotating it. The product has good reliability, but the structure is complex and the equipment versatility is poor.

[0003] The main drawback of the wheel-type capping machine is that since the horizontal capping wheels rotate the bottle caps in the horizontal direction and there are usually four of them, in order to place the bottle caps between the four horizontal capping wheels, the supports of the horizontal capping wheels are usually driven by cylinders to slide back and forth to control the spacing of the horizontal capping wheels for the purpose of taking and placing products and clamping the bottle caps. A large number of cylinders are used, which increases production costs and operating energy consumption.

[0004] Therefore, it is necessary to propose a capping device for a capping machine to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] The purpose of the present invention is to provide a capping device for a capping machine, so as to solve the problems of high production cost and high energy consumption of the existing capping devices mentioned in the above background technology.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A capping device for a capping machine, comprising a bracket, both sides of the bracket are slidably connected to a movable frame, and the lower side of the movable frame is rotatably connected to a roller;

[0009] A telescopic mechanism is fixedly connected to the middle of the bracket, and a transmission frame is provided between the two movable frames. The transmission frame is driven to rise and fall by the telescopic mechanism. Both ends of the transmission frame are slidably connected to the two movable frames through inclined grooves, and the transmission frame is used to drive the two movable frames to move closer to or away from each other.

[0010] It also includes a pressing plate, which is driven to rise and fall by a telescopic mechanism.

[0011] Preferably, the end of the transmission frame is rotatably connected to a limiting wheel, and the limiting wheel slides along the inclined groove.

[0012] Preferably, the telescopic mechanism is a telescopic rod.

[0013] Preferably, the transmission frame is slidably connected to the movable rod of the telescopic mechanism, and the outer side of the movable rod of the telescopic mechanism is sleeved with a first spring for driving the transmission frame to slide along its extension direction.

[0014] Preferably, a movable shaft is fixedly connected to the middle of the pressure plate, the movable shaft is slidably connected to the movable rod of the telescopic mechanism, and a second spring is sleeved on the outer side of the movable shaft.

[0015] Preferably, the roller is driven to rotate by a driving mechanism, which includes a motor and a rotating shaft. The rotating shaft is rotatably connected to the movable frame through a bearing. The roller is fixedly connected to the bottom end of the rotating shaft, and the rotating shaft is driven to rotate by the motor.

[0016] Preferably, a sleeve is sleeved on the outer side of the rotating shaft, and the sleeve is fixedly connected to the movable frame.

[0017] Preferably, the middle portion of the movable frame is rotatably connected to two rollers, and the distances between the two rollers and the pressure plate are the same.

[0018] Preferably, an elastic anti-slip ring is fixedly connected to the outer side of the roller.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the present invention provides a capping device for a capping machine, which has the following beneficial effects:

[0021] 1. The capping device of the capping machine is provided with an inclined slot and a transmission frame, so that the movable frame and the pressing plate are driven and moved by the telescopic mechanism, which reduces the number of cylinders used, reduces processing costs, and reduces energy consumption.

[0022] 2. The capping device of the capping machine is provided with a first spring and a second spring, and the pressure is buffered under the action of the first spring and the second spring to avoid deformation of the bottle cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the main view of the structure of the utility model;

[0025] Figure 3 It is a partial cross-sectional schematic diagram of the structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the use status of the structure of the utility model.

[0027] In the figure: 1. telescopic mechanism; 2. bracket; 3. motor; 4. transmission belt; 5. movable frame; 6. pulley; 8. rotating shaft; 9. roller; 10. inclined groove; 11. limiting wheel; 12. transmission frame; 13. pressure plate; 14. first limiting ring; 15. first spring; 16. second spring; 17. movable shaft; 18. second limiting ring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0029] See also Figure 1-4 As shown, a capping device for a capping machine includes a bracket 2, with movable frames 5 slidably connected to both sides of the bracket 2. The lower portion of the movable frames 5 is rotatably connected to a roller 9 driven by a driving mechanism. A telescopic mechanism 1 is fixedly connected to the middle portion of the bracket 2. A transmission frame 12 is provided between the two movable frames 5. The transmission frame 12 is driven to rise and fall by the telescopic mechanism 1. The ends of the transmission frame 12 are slidably connected to the two movable frames 5 via inclined slots 10, and the transmission frame 12 is used to drive the two movable frames 5 toward or away from each other. The device also includes a pressure plate 13, which is driven to rise and fall by the telescopic mechanism 1. Specifically, the inclined slots 10 on the two movable frames 5 have opposite inclination directions.

[0030] By providing a telescopic mechanism 1 to drive the transmission frame 12 and the pressure plate 13 to rise and fall synchronously, when the telescopic mechanism 1 drives it downward, the pressure plate 13 flattens the bottle cap. The transmission frame 12 and the inclined slot 10 cooperate to drive the two movable frames 5 to move toward each other, so that the roller 9 contacts the bottle cap. The driving mechanism drives the roller 9 to rotate, and the friction force causes the roller 9 to screw the bottle cap on. The interaction between the telescopic mechanism 1, the inclined slot 10, and the transmission frame 12 drives the roller 9 toward or away from the bottle cap, reducing the number of telescopic mechanisms 1 deployed, lowering deployment costs and energy consumption.

[0031] Specifically, the end of the transmission frame 12 is rotatably connected to the limiting wheel 11, and the limiting wheel 11 slides along the inclined groove 10. By providing the limiting wheel 11, sliding friction is reduced and component wear is avoided.

[0032] Specifically, the telescopic mechanism 1 is a telescopic rod. Preferably, the telescopic rod is an electric telescopic rod or a cylinder.

[0033] In some embodiments, the transmission frame 12 is slidably connected to the movable rod of the telescopic mechanism 1 , and a first spring 15 is sleeved on the outer side of the movable rod of the telescopic mechanism 1 for driving the transmission frame 12 to slide along its extension direction.

[0034] By providing the first spring 15 , the pressure can be buffered under the action of the first spring 15 , thereby preventing the bottle cap from being deformed due to excessive pressure.

[0035] Specifically, a first limiting ring 14 and a second limiting ring 18 are fixedly connected to the outer side of the movable rod of the telescopic mechanism 1, and the transmission frame 12 and the first spring 15 are arranged between the first limiting ring 14 and the second limiting ring 18, and are limited by the first limiting ring 14 and the second limiting ring 18.

[0036] In some embodiments, a movable shaft 17 is fixedly connected to the middle portion of the pressure plate 13, and the movable shaft 17 is slidably connected to the movable rod of the telescopic mechanism 1. A second spring 16 is sleeved on the outer side of the movable shaft 17. Preferably, the movable shaft 17 is rotatably connected to the movable rod of the telescopic mechanism 1 so that the pressure plate 13 rotates with the bottle cap during the capping process.

[0037] By providing the second spring 16 , the pressure can be buffered under the action of the second spring 16 to prevent the bottle cap from being deformed due to excessive pressure; at the same time, the bottle cap can be continuously pressurized under the action of the second spring 16 .

[0038] In some embodiments, the drive mechanism includes a motor 3 and a rotating shaft 8. The rotating shaft 8 is rotatably connected to the movable frame 5 via a bearing. A roller 9 is fixedly connected to the bottom end of the rotating shaft 8. The rotating shaft 8 is driven by the motor 3. Specifically, a pulley 6 is fixedly connected to the top end of the rotating shaft 8 and the output shaft of the motor 3. The two pulleys 6 are connected by a transmission belt 4. Preferably, the pulley 6 is a synchronous pulley and the transmission belt 4 is a synchronous belt.

[0039] Specifically, a sleeve is sleeved on the outer side of the rotating shaft 8 , and the sleeve is fixedly connected to the movable frame 5 .

[0040] The sleeve is provided to limit the rotation shaft 8 to prevent the rotation shaft 8 from tilting.

[0041] In order to prevent the bottle cap from deflecting, the middle of the movable frame 5 is rotatably connected to two rollers 9 , and the two rollers 9 are at the same distance from the pressing plate 13 .

[0042] By providing four rollers 9 , during the capping operation, the four rollers 9 clamp and limit the bottle cap to prevent it from deflecting; specifically, the four rollers 9 rotate in the same direction.

[0043] In order to prevent the roller 9 and the bottle cap from sliding relative to each other, an elastic anti-skid ring is fixedly connected to the outside of the roller 9. The friction between the roller 9 and the bottle cap is increased by arranging the elastic anti-skid ring.

[0044] Working principle: When in use, place the bottle cap on the bottle mouth, clamp the bottle body with a positioning fixture and fix it just below the pressure plate 13, start the telescopic mechanism 1, the telescopic mechanism 1 drives the transmission frame 12 and the pressure plate 13 downward, the pressure plate 13 applies pressure to the bottle cap so that the bottle cap is parallel to the bottle mouth, and at the same time the transmission frame 12 drives the two movable frames 5 to approach each other through the inclined slot 10, so that the roller 9 contacts the bottle cap, start the motor 3, the motor 3 drives the rotating shaft 8 to rotate through the transmission belt 4 and the pulley 6, the rotating shaft 8 drives the roller 9 to rotate, and under the action of friction, the roller 9 screws the bottle cap onto the bottle body.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A capping device for a capping machine, comprising a bracket (2), characterized in that: Both sides of the bracket (2) are slidably connected to a movable frame (5), and the bottom of the movable frame (5) is rotatably connected to a roller (9); The middle of the bracket (2) is fixedly connected to a telescopic mechanism (1), and a transmission frame (12) is provided between the two movable frames (5). The transmission frame (12) is driven to rise and fall by the telescopic mechanism (1), and both ends of the transmission frame (12) are slidably connected to the two movable frames (5) through inclined slots (10), respectively. The transmission frame (12) is used to drive the two movable frames (5) to move closer to or farther away from each other. It also includes a pressing plate (13), and the pressing plate (13) is driven to rise and fall by the telescopic mechanism (1).

2. The capping device of a capping machine according to claim 1, characterized in that: The end of the transmission frame (12) is rotatably connected to a limiting wheel (11), and the limiting wheel (11) slides along the inclined groove (10).

3. The capping device of a capping machine according to claim 1, characterized in that: The telescopic mechanism (1) is a telescopic rod.

4. The capping device of a capping machine according to claim 3, characterized in that: The transmission frame (12) is slidably connected to the movable rod of the telescopic mechanism (1), and a first spring (15) is sleeved on the outer side of the movable rod of the telescopic mechanism (1) for driving the transmission frame (12) to slide along its extension direction.

5. The capping device of a capping machine according to claim 3, characterized in that: A movable shaft (17) is fixedly connected to the middle of the pressure plate (13), and the movable shaft (17) is slidably connected to the movable rod of the telescopic mechanism (1). A second spring (16) is sleeved on the outer side of the movable shaft (17).

6. The capping device of a capping machine according to claim 1, characterized in that: The roller (9) is driven to rotate by a driving mechanism, and the driving mechanism includes a motor (3) and a rotating shaft (8). The rotating shaft (8) is rotatably connected to the movable frame (5) through a bearing. The roller (9) is fixedly connected to the bottom end of the rotating shaft (8), and the rotating shaft (8) is driven to rotate by the motor (3).

7. The capping device of a capping machine according to claim 6, characterized in that: A sleeve is sleeved on the outer side of the rotating shaft (8), and the sleeve is fixedly connected to the movable frame (5).

8. The capping device of a capping machine according to claim 1, characterized in that: The middle part of the movable frame (5) is rotatably connected to two rollers (9), and the distance between the two rollers (9) and the pressure plate (13) is the same.

9. The capping device of a capping machine according to claim 1, characterized in that: An elastic anti-slip ring is fixedly connected to the outer side of the roller (9).

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