Pneumatic cap screwing machine

Abstract

The utility model relates to the technical field of cap screwing machines, in particular to a pneumatic cap screwing machine which comprises a machine frame, a fixing frame, a mounting part and an electric rotating frame. A conveying mechanism for conveying bottle bodies is arranged on the rack, and a fixing assembly for fixing the bottle bodies is arranged on the rack; the fixing frame is connected with the machine frame and provided with a sensor used for detecting the bottle body, and the position of the sensor corresponds to the position of the fixing assembly. The fixing frame is provided with an electric rotating frame, the electric rotating frame is provided with a hydraulic cylinder used for adjusting the height of the mounting part, and the mounting part is provided with a clamping mechanism used for clamping bottle caps; the rack is provided with a controller, and the controller is electrically connected with the conveying mechanism, the electric rotating frame, the sensor, the clamping mechanism, the fixing assembly and the hydraulic cylinder. According to the cap screwing machine, the clamping mechanism can clamp the bottle caps with different outer diameters, so that the cap screwing machine can screw the bottle caps with different sizes, and the applicability of the cap screwing machine is higher.

Description

Technical Field

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

[0002] The capping machine is also called a cap sealing machine, a capping machine or a cap locking machine. The automatic capping machine is mainly applicable to caps of different materials and different specifications, such as screw caps, anti-theft caps, child-proof caps, press-in caps, etc., and is equipped with a constant torque capping head, and the pressure can be easily adjusted. After the plastic packaging bottle is filled, it is necessary to screw on the bottle cap to seal the plastic packaging bottle. The rotary capping is a very common capping method, which has the characteristics of simple structure and good sealing performance.

[0003] The Chinese patent with the authorization announcement number CN217708837U discloses a beverage bottle capping device. Its technical solution includes a cross plate, a turntable and an operating table. The turntable is installed on the upper surface of the operating table through a rotating shaft at the central position. A placement box is installed on the upper surface of the turntable. A connecting shaft is installed at the central position of the upper surface of the turntable. A disc is installed on the outer surface of the connecting shaft near the upper surface. A gear is installed on the upper surface of the disc through a rotating shaft. A chuck is installed on the lower surface of the rotating shaft. A spring is installed on the top of the inner wall of the chuck. A column is installed on the upper surface of the operating table. A cross plate is installed on the upper surface of the column. A toothed ring is installed on the lower surface of the cross plate. The utility model can reduce the pressure on the rotating bottle cap, thereby preventing the bottle cap and the anti-theft ring from deforming during rotation, and at the same time can perform the capping operation of plastic bottles in multiple stations, improving the efficiency of the plastic bottle capping device.

[0004] However, the above technical solution has the following defects: In the above beverage bottle capping device, the chuck holds the bottle cap, and the pressing plate presses on the bottle cap to limit the bottle cap. However, the size of the chuck cannot be adjusted, so that the capping machine cannot tighten bottle caps of different sizes, and the applicability of the capping machine is poor. Content of the Utility Model

[0005] The purpose of the utility model is to propose a pneumatic capping machine aiming at the problems existing in the background technique.

[0006] The technical solution of the utility model: A pneumatic capping machine includes a frame, a fixed frame, an installation part and an electric rotating frame;

[0007] A conveying mechanism for conveying the bottle body is arranged on the frame, and a fixing component for fixing the bottle body is arranged on the frame;

[0008] The fixed frame is connected to the frame, and a sensor for detecting the bottle body is arranged on the fixed frame, and the position of the sensor corresponds to the position of the fixing component;

[0009] The fixing frame is provided with an electric rotating frame, and the electric rotating frame is provided with a hydraulic cylinder for adjusting the height of the installation part. The installation part is provided with a clamping mechanism for clamping the bottle cap.

[0010] The frame is provided with a controller, and the controller is electrically connected to the conveying mechanism, the electric rotating frame, the sensor, the clamping mechanism, the fixing component and the hydraulic cylinder.

[0011] Preferably, the clamping mechanism includes clamping blocks, moving rods, fixed shafts, sleeves and support rods;

[0012] The installation part is connected to the lower end of the hydraulic cylinder, the fixed shaft is connected to the upper end of the installation part, and a plurality of moving rods are provided and are all slidably connected to the installation part;

[0013] The sleeve is slidably connected to the fixed shaft, and a cylinder for driving the sleeve to move is provided on the fixed shaft;

[0014] A plurality of support rods are provided. One end of each support rod is rotatably connected to the outer peripheral surface of the sleeve, and the other end of each support rod is respectively rotatably connected to a plurality of moving rods. A plurality of clamping blocks are provided, and the clamping blocks are connected to the lower ends of the plurality of moving rods.

[0015] Preferably, a slider is provided at the lower end of the moving rod, a plurality of through holes are provided on the installation part, the through holes correspond to the moving rods one by one, the slider is slidably connected to the corresponding through hole, and the clamping block is connected to the slider at the lower end of the corresponding moving rod.

[0016] Preferably, rubber pads are provided on the surfaces of the clamping blocks close to the bottle cap.

[0017] Preferably, the fixing component includes an electric push rod and a fixing block;

[0018] Two electric push rods are provided and are both connected to the frame. The electric push rods are symmetrically distributed on both sides of the conveying mechanism. Two fixing blocks are provided and are respectively connected to the other ends of the electric push rods.

[0019] Preferably, V-shaped grooves are provided on the surfaces of the fixing blocks close to each other, and a plurality of convex blocks are provided in the V-shaped grooves.

[0020] Preferably, the conveying mechanism includes a conveyor belt, a transmission roller and a support plate;

[0021] Two transmission rollers are provided and are both rotatably connected to the frame. The frame is provided with a driving component, and the driving component is drivingly connected to one transmission roller;

[0022] The conveyor belt is cooperatively connected with the two transmission rollers, the inner peripheral surface of the conveyor belt is pressed against the outer peripheral surface of the transmission roller, the support plate is connected to the frame, the support plate is located inside the conveyor belt, and the upper surface of the support plate is closely attached to the inner peripheral surface of the conveyor belt.

[0023] Preferably, two limiting components are provided on the frame, and the limiting components include connecting rods, limiting rods and springs;

[0024] The connecting rod is connected to the limiting rod. The connecting rod is slidably connected to the frame, and the spring is sleeved outside the connecting rod;

[0025] The distance between the limiting rods in the two limiting components gradually decreases along the conveying direction of the conveying mechanism.

[0026] Compared with the prior art, the above technical solution of the present utility model has the following beneficial technical effects:

[0027] 1. In the present utility model, the air cylinder drives the sleeve to move on the fixed shaft. The sleeve drives one end of the support rod to move, and the other end of the support rod drives the moving rod to slide on the installation part. The moving rod drives the lower clamping block to move on the installation part, and multiple clamping blocks approach or move away synchronously, so as to clamp or loosen the bottle cap, enabling the clamping mechanism to clamp bottle caps of different sizes.

[0028] 2. In the present utility model, multiple bottle bodies are arranged on the conveying mechanism, and the bottle bodies sequentially pass between the two limiting rods in the limiting component, so that multiple bottle bodies are neatly arranged on the conveying mechanism. Description of the Drawings

[0029] Figure 1 It is a perspective view of the use state of an embodiment proposed by the present utility model.

[0030] Figure 2 It is a structural schematic diagram of a pneumatic capping machine proposed by the present utility model.

[0031] Figure 3 It is a structural schematic diagram of the clamping mechanism in a pneumatic capping machine proposed by the present utility model.

[0032] Reference numerals: 1, frame; 2, fixed frame; 3, hydraulic cylinder; 4, conveyor belt; 5, bottle body; 6, installation part; 7, electric rotating frame; 8, connecting rod; 9, limiting rod; 10, spring; 11, electric push rod; 12, fixed block; 13, convex block; 14, sensor; 15, driving roller; 16, driving component; 17, support plate; 18, clamping block; 19, rubber pad; 20, moving rod; 21, fixed shaft; 22, slider; 23, sleeve; 24, support rod; 25, bottle cap. Detailed Embodiments

[0033] Embodiment 1

[0034] As Figures 1 - 3 shown, a pneumatic capping machine proposed by the present utility model includes a frame 1, a fixed frame 2, an installation part 6, and an electric rotating frame 7;

[0035] A conveying mechanism for conveying the bottle body 5 is provided on the frame 1, and a fixing component for fixing the bottle body 5 is provided on the frame 1, and the fixing component is located above the transmission mechanism.

[0036] The fixing assembly includes an electric push rod 11 and a fixing block 12; there are two electric push rods 11, both of which are connected to the frame 1. The electric push rods 11 are symmetrically distributed on both sides of the conveying mechanism. There are two fixing blocks 12, which are respectively connected to the other ends of the electric push rods 11;

[0037] Furthermore, V-shaped grooves are provided on the surfaces of the fixing blocks 12 close to each other, and a plurality of bumps 13 are provided in the V-shaped grooves.

[0038] The fixing frame 2 is connected to the frame 1. A sensor 14 for detecting the bottle body 5 is provided on the fixing frame 2, and the position of the sensor 14 corresponds to the position of the fixing assembly.

[0039] The fixing frame 2 is provided with an electric rotating frame 7. A hydraulic cylinder 3 for adjusting the height of the mounting part 6 is provided on the electric rotating frame 7, and a clamping mechanism for clamping the bottle cap 25 is provided on the mounting part 6.

[0040] The frame 1 is provided with a controller, and the controller is electrically connected to the conveying mechanism, the electric rotating frame 7, the sensor 14, the clamping mechanism, the fixing assembly and the hydraulic cylinder 3.

[0041] In the embodiment, the controller can be a programmable logic controller or PLC or single-chip microcomputer commonly used in the market. The controller can issue corresponding action instructions to each mechanism according to the feedback signal. The specific control method of the control system is not within the protection scope of the present invention and will not be elaborated here.

[0042] In the present invention, the conveying mechanism drives a plurality of bottle bodies 5 to move, and the bottle caps 25 are placed on the bottle bodies 5. When the bottle body 5 moves to the fixing frame 2, the controller receives the signal of the sensor 14 and controls the conveying mechanism to stop. In the fixing mechanism, the electric push rod 11 drives the corresponding fixing block 12 to move closer to clamp the outer peripheral surface of the bottle body 5, so that the bottle cap 25 is located below the clamping mechanism. The hydraulic cylinder 3 drives the mounting part 6 and the clamping mechanism to move downward, and the clamping mechanism clamps the outer peripheral surface of the bottle cap 25. The electric rotating frame 7 drives the clamping mechanism and the bottle cap 25 to rotate and tighten; in the present invention, the clamping mechanism can clamp bottle caps with different outer diameters, so that the capping machine can tighten bottle caps with different sizes, making the capping machine more applicable.

[0043] Embodiment 2

[0044] As Figures 1 - 3 shown, a pneumatic capping machine proposed by the present invention. Compared with Embodiment 1, in this embodiment, the clamping mechanism includes a clamping block 18, a moving rod 20, a fixed shaft 21, a sleeve 23 and a support rod 24;

[0045] The mounting part 6 is connected to the lower end of the hydraulic cylinder 3, and the fixed shaft 21 is connected to the upper end of the mounting part 6. The fixed shaft 21 is coaxially distributed with the rotating shaft of the electric rotating frame 7;

[0046] A plurality of moving rods 20 are provided and are all slidably connected to the mounting portion 6. The moving rods 20 are evenly distributed circumferentially on the mounting portion 6;

[0047] The sleeve 23 is slidably connected to the fixed shaft 21 and is coaxially distributed with the fixed shaft 21. A cylinder for driving the movement of the sleeve 23 is provided on the fixed shaft 21;

[0048] A plurality of support rods 24 are provided. The support rods 24 correspond to the moving rods 20 one by one. One end of each support rod 24 is rotatably connected to the outer peripheral surface of the sleeve 23 and is evenly distributed circumferentially on the sleeve 23. The other ends of the support rods 24 are respectively rotatably connected to a plurality of moving rods 20;

[0049] A plurality of clamping blocks 18 are provided and correspond to the moving rods 20 one by one. The clamping blocks 18 are connected to the lower ends of the plurality of moving rods 20.

[0050] Further, a slider 22 is provided at the lower end of the moving rod 20. A plurality of through holes are provided on the mounting portion 6. The through holes correspond to the moving rods 20 one by one. The slider 22 is slidably connected to the corresponding through hole. The clamping block 18 is connected to the slider 22 at the lower end of the corresponding moving rod 20.

[0051] Further, rubber pads 19 are provided on the surfaces of the clamping blocks 18 close to the bottle cap 25, increasing the friction between the clamping blocks 18 and the bottle cap 25 and preventing the clamping blocks 18 from damaging the bottle cap 25 at the same time.

[0052] In this embodiment, the cylinder drives the sleeve 23 to move on the fixed shaft 21. The sleeve 23 drives one end of the support rod 24 to move. The other end of the support rod 24 drives the moving rod 20 to slide on the mounting portion 6. The moving rod 20 drives the lower clamping block 18 to move on the mounting portion 6. The plurality of clamping blocks 18 approach or move away synchronously, so as to clamp or loosen the bottle cap 25, enabling the clamping mechanism to clamp bottle caps 25 of different sizes.

[0053] Embodiment Three

[0054] As Figures 1 - 2 shown, a pneumatic cap screwing machine proposed by the present utility model. Compared with Embodiment One, in this embodiment, the conveying mechanism includes a conveyor belt 4, a driving roller 15 and a support plate 17;

[0055] Two driving rollers 15 are provided and are both rotatably connected to the frame 1. The frame 1 is provided with a driving assembly 16. The driving assembly 16 is drivingly connected to one driving roller 15;

[0056] The conveyor belt 4 is cooperatively connected with the two driving rollers 15. The inner peripheral surface of the conveyor belt 4 is pressed against the outer peripheral surface of the driving roller 15. The support plate 17 is connected to the frame 1. The support plate 17 is located inside the conveyor belt 4. The upper surface of the support plate 17 is closely attached to the inner peripheral surface of the conveyor belt 4.

[0057] In this embodiment, the drive assembly 16 is activated to drive a transmission roller 15 to rotate. The transmission roller 15 is connected in cooperation with a conveyor belt 4, and the conveyor belt 4 drives a plurality of bottles 5 thereon to move. The support plate 17 prevents the conveyor belt 4 from sagging inward and plays a supporting role.

[0058] Embodiment 4

[0059] As Figures 1 - 2 shown, a pneumatic capping machine proposed by the present utility model. Compared with Embodiment 1, in this embodiment, two limiting components are provided on the frame 1. The limiting components include a connecting rod 8, a limiting rod 9 and a spring 10;

[0060] The connecting rod 8 is connected to the limiting rod 9. The connecting rod 8 is slidably connected to the frame 1. The spring 10 is sleeved outside the connecting rod 8. The distance between the limiting rods 9 in the two limiting components gradually decreases along the conveying direction of the conveying mechanism.

[0061] In this embodiment, a plurality of bottles 5 are arranged on the conveying mechanism. The bottles 5 sequentially pass between the two limiting rods 9 in the limiting component, so that the plurality of bottles 5 are neatly arranged on the conveying mechanism.

[0062] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto. Various changes can be made without departing from the spirit of the present utility model within the knowledge scope of those skilled in the art to which the present utility model pertains.

Claims

1. A pneumatic capping machine, characterized in that: It comprises a frame (1), a fixed frame (2), a mounting portion (6) and an electric rotating frame (7); The frame (1) is provided with a conveying mechanism for conveying the bottle body (5), and the frame (1) is provided with a fixing assembly for fixing the bottle body (5); The fixing frame (2) is connected to the frame (1), and a sensor (14) for detecting the bottle body (5) is provided on the fixing frame (2), and the position of the sensor (14) corresponds to the position of the fixing component; The fixed frame (2) is provided with an electric rotating frame (7), the electric rotating frame (7) is provided with a hydraulic cylinder (3) for adjusting the height of the mounting portion (6), and the mounting portion (6) is provided with a clamping mechanism for clamping the bottle cap (25); The frame (1) is provided with a controller, and the controller is electrically connected to the transmission mechanism, the electric rotating frame (7), the sensor (14), the clamping mechanism, the fixing assembly and the hydraulic cylinder (3).

2. A pneumatic capping machine according to claim 1, characterized in that: The clamping mechanism comprises a clamping block (18), a moving rod (20), a fixed shaft (21), a sleeve (23) and a supporting rod (24); The mounting portion (6) is connected to the lower end of the hydraulic cylinder (3), the fixed shaft (21) is connected to the upper end of the mounting portion (6), and the moving rod (20) is provided with a plurality of movable rods (20) and all are slidably connected to the mounting portion (6); The sleeve (23) is slidably connected to the fixed shaft (21), and the fixed shaft (21) is provided with a cylinder for driving the sleeve (23) to move; A plurality of support rods (24) are provided, one end of each support rod (24) is rotatably connected to the outer peripheral surface of the sleeve (23), and the other end of each support rod (24) is rotatably connected to a plurality of movable rods (20). A plurality of clamping blocks (18) are provided, and the clamping blocks (18) are connected to the lower ends of the plurality of movable rods (20).

3. A pneumatic capping machine according to claim 2, characterized in that: A slider (22) is provided at the lower end of the moving rod (20), a plurality of through holes are provided on the mounting portion (6), the through holes correspond to the moving rods (20) one by one, the sliders (22) are slidably connected to the corresponding through holes, and the clamping block (18) is connected to the sliders (22) at the lower end of the corresponding moving rods (20).

4. The pneumatic capping machine according to claim 2, characterized in that: The surface of the clamping block (18) close to the bottle cap (25) is provided with a rubber pad (19).

5. The pneumatic capping machine according to claim 1, characterized in that: The fixing assembly comprises an electric push rod (11) and a fixing block (12); Two electric push rods (11) are provided and are both connected to the frame (1). The electric push rods (11) are symmetrically distributed on both sides of the transmission mechanism. Two fixed blocks (12) are provided and are respectively connected to the other ends of the electric push rods (11).

6. A pneumatic capping machine according to claim 5, characterized in that: The surfaces of the fixing blocks (12) that are close to each other are all provided with V-shaped grooves, and a plurality of protrusions (13) are provided in the V-shaped grooves.

7. The pneumatic capping machine according to claim 1, characterized in that: The conveying mechanism comprises a conveying belt (4), a transmission roller (15) and a supporting plate (17); Two transmission rollers (15) are provided and are both rotatably connected to the frame (1); the frame (1) is provided with a driving assembly (16); the driving assembly (16) is rotatably connected to one transmission roller (15); The conveyor belt (4) is connected to two transmission rollers (15) in a coordinated manner, the inner circumference of the conveyor belt (4) is pressed against the outer circumference of the transmission roller (15), the support plate (17) is connected to the frame (1), the support plate (17) is located inside the conveyor belt (4), and the upper surface of the support plate (17) is only attached to the inner circumference of the conveyor belt (4).

8. The pneumatic capping machine according to claim 1, characterized in that: Two limit assemblies are arranged on the frame (1), and the limit assemblies include a connecting rod (8), a limit rod (9) and a spring (10); The connecting rod (8) is connected to the limiting rod (9), the connecting rod (8) is slidably connected to the frame (1), and the spring (10) is sleeved on the outside of the connecting rod (8); The distance between the limiting rods (9) in the two limiting assemblies gradually decreases along the conveying direction of the conveying mechanism.

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