A torque feedback screw cap head device of a filling screw cap machine

Abstract

The utility model relates to filling equipment technical field especially relates to a kind of cap head device of filling cap machine with torque feedback, including machine body, machine body is equipped with conveyer belt, the top of conveyer belt is equipped with the rectangular block that can slide up and down, the top of rectangular block is fixedly connected with mounting bracket, the cross section of mounting bracket is "F" character, the top of mounting bracket inner wall is rotatably connected with driving bevel gear, the outer wall of driving bevel gear is engaged with connecting bevel gear, the outer wall of connecting bevel gear is engaged with driven bevel gear, the bottom of driven bevel gear is fixedly connected with installation cylinder, the device is driven cone extruding block to descend by telescopic cylinder, sliding wheel is always closely combined with the slope of cone extruding block, different size bottle cap can be flexibly adapted, filling cap operation efficiency is improved, torque sensor at installation cylinder can real-time monitoring torque change in cap process, effectively avoid the sealing not tight liquid leakage caused by torque deficiency, reduce equipment maintenance cost and material loss.

Description

Technical Field

[0001] The utility model relates to the technical field of filling equipment, in particular to a cap screwing head device with torque feedback for a filling and capping machine. Background Technique

[0002] A filling and capping machine is an automated packaging equipment integrating functions of liquid or semi-fluid quantitative filling and cap screwing, and is widely used in industries such as pharmaceuticals, cosmetics, food, beverages, daily chemicals, and chemicals.

[0003] Existing cap screwing heads mostly have a fixed specification structure or only support quick disassembly and replacement of limited specifications. When it is necessary to switch caps of different diameters and heights during production, it is necessary to stop the machine to disassemble the old cap screwing head and install new components. The replacement and debugging take a long time, seriously interrupting the production process. Moreover, the adaptation range of the cap screwing head is narrow, unable to accommodate minor dimensional errors of caps, prone to slipping or pressing damage problems, and it is necessary to reserve multiple sets of components additionally, increasing the equipment cost and inventory pressure. Only by presetting the motor speed to indirectly control the screwing force, the actual torque cannot be monitored in real time, and it is easy to cause insufficient torque or overload due to abnormal cap threads, resulting in a high rate of unqualified products, easy damage to transmission components, and difficulties in troubleshooting and quality traceability, further increasing production losses and maintenance costs. Content of the Utility Model

[0004] In view of the above-mentioned problems to be solved, the present utility model is proposed.

[0005] To solve the above technical problems, the present utility model provides the following technical solution: A cap screwing head device with torque feedback for a filling and capping machine, including a machine body. The machine body is provided with a conveyor belt. The top of the conveyor belt is provided with a rectangular block that can slide up and down. The top of the rectangular block is fixedly connected with an installation frame. The cross-section of the installation frame is in an inverted "U" shape. The top end of the inner wall of the installation frame is rotatably connected with a driving bevel gear. The outer wall of the driving bevel gear is meshed with a connecting bevel gear. The outer wall of the connecting bevel gear is meshed with a driven bevel gear. The bottom end of the driven bevel gear is fixedly connected with an installation cylinder. The inner wall of the installation cylinder is slidably connected with a plurality of uniformly distributed clamping blocks. The top end of the clamping block is rotatably connected with a sliding wheel. The circumferential surface of the sliding wheel is slidably connected with a conical pressing block. A torque sensor is installed at one end of the outer ring surface of the installation cylinder close to the driven bevel gear.

[0006] As a preferred scheme of a cap screwing head device with torque feedback for a filling and capping machine of the present utility model, among them: The top end of the installation frame is fixedly installed with a driving motor. The output end of the driving motor is fixedly connected with the top end of the driving bevel gear. The bottom end of the inner wall of the installation frame is fixedly connected with a support plate. The support plate is in an "L" shape. The top end of the support plate is fixedly installed with a telescopic cylinder. The output end of the telescopic cylinder is fixedly connected with a lifting rod.

[0007] As a preferred embodiment of the capping head device with torque feedback for a filling and capping machine of this utility model, the bottom end of the lifting rod is fixedly connected to the top end of the conical extrusion block, the top end of the driven bevel gear is provided with a through hole communicating with the inner wall of the mounting cylinder, the inner ring surface of the through hole is slidably connected to the circumferential surface of the lifting rod, and a circular plate that is slidably connected to the circumferential surface of the lifting rod is fixedly connected to one end of the inner wall of the mounting cylinder near the driven bevel gear.

[0008] As a preferred embodiment of the capping head device with torque feedback for a filling and capping machine of this utility model, the clamping block has an installation groove at the end away from the conical extrusion block, a first spring is connected between the installation groove and the inner wall of the installation cylinder, a sleeve plate is slidably connected to the inner wall of the installation cylinder near the top of the conical extrusion block, and a second spring is connected between the top of the sleeve plate and the bottom of the circular plate.

[0009] As a preferred embodiment of the capping head device with torque feedback for a filling and capping machine of this utility model, the outer wall of the clamping block is provided with a plurality of evenly distributed moving holes, the inner wall of the moving holes is slidably connected with a fixing column that is fixedly connected to the inner wall of the mounting cylinder, and the bottom end of the clamping block near the conical extrusion block is fixedly connected with an anti-slip pad.

[0010] As a preferred embodiment of the capping head device with torque feedback for a filling and capping machine of this utility model, wherein: both ends of the outer wall of the machine body are fixedly connected to a fixing plate, the top of the fixing plate is fixedly connected to a micro cylinder, the output end of the micro cylinder is fixedly connected to a clamping plate, the inner wall of one of the fixing plates is fixedly connected to two evenly distributed cylinders, the top of the two cylinders is fixedly connected to a straight plate, the top of the straight plate is fixedly connected to a lifting cylinder, the output end of the lifting cylinder is fixedly connected to a connecting plate, the inner wall of the connecting plate is slidably connected to the circumferential surface of the cylinder, and the surface of the connecting plate is fixedly connected to the outer wall of the mounting frame.

[0011] The beneficial effects of this utility model are: This device uses a telescopic cylinder to drive a conical extrusion block downwards. Under the continuous force of the first spring, the sliding wheel remains in close contact with the inclined surface of the conical extrusion block, thereby pushing the clamping block to form a stable clamp on the bottle cap. It can flexibly adapt to bottle caps of different sizes, eliminating the need for frequent disassembly and replacement of caps, reducing the procurement and storage costs of spare parts, and improving the efficiency of filling and capping operations. At the same time, the torque sensor at the mounting cylinder can monitor the torque changes during the capping process in real time. After the data is transmitted to the control device, the speed of the drive motor can be precisely adjusted, effectively avoiding problems such as insufficient torque leading to poor sealing and leakage, or overload causing bottle cap deformation and bottle mouth damage, thus reducing equipment maintenance costs and material losses. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them: Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0013] Figure 2 It is a schematic diagram of the installation structure of the installation cylinder of the present utility model.

[0014] Figure 3 It is a schematic diagram of the installation structure of the driving bevel gear of the present utility model.

[0015] Figure 4 It is a schematic diagram of the installation structure of the clamping block of the present utility model.

[0016] Explanation of reference numerals: 1, body; 2, conveyor belt; 3, cylinder; 4, fixing plate; 5, micro cylinder; 6, clamping plate; 7, connecting plate; 8, mounting bracket; 9, rectangular block; 10, driving bevel gear; 11, connecting bevel gear; 12, driven bevel gear; 13, support plate; 14, torque sensor; 15, lifting rod; 16, installation cylinder; 17, sleeve plate; 18, circular plate; 19, second spring; 20, conical extrusion block; 21, clamping block; 22, sliding wheel; 23, anti-slip pad; 24, first spring; 25, fixing column. Specific embodiments

[0017] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific embodiments of the present utility model in conjunction with the drawings in the specification. Embodiment

[0018] Refer to Figures 1-4 , which is the first embodiment of the present utility model, providing a cap screwing head device with torque feedback for a filling and capping machine, including a body 1. The body 1 is provided with a conveyor belt 2. At the top of the conveyor belt 2, there is a rectangular block 9 that can slide up and down. At the top of the rectangular block 9, there is a fixedly connected mounting bracket 8. The cross-section of the mounting bracket 8 is in the shape of a "C". At the top of the inner wall of the mounting bracket 8, there is a rotatably connected driving bevel gear 10. The outer wall of the driving bevel gear 10 is meshed with a connecting bevel gear 11. The outer wall of the connecting bevel gear 11 is meshed with a driven bevel gear 12. At the bottom end of the driven bevel gear 12, there is a fixedly connected installation cylinder 16. Inside the inner wall of the installation cylinder 16, there are a plurality of uniformly distributed clamping blocks 21 that slide. At the top of the clamping block 21, there is a rotatably connected sliding wheel 22. The circumferential surface of the sliding wheel 22 is slidably connected to a conical extrusion block 20. At one end of the outer ring surface of the installation cylinder 16 close to the driven bevel gear 12, there is a torque sensor 14.

[0019] A drive motor is fixedly installed at the top of the mounting bracket 8. The output end of the drive motor is fixedly connected to the top of the active bevel gear 10. A support plate 13 is fixedly connected to the bottom of the inner wall of the mounting bracket 8. The support plate 13 is "L" shaped. A telescopic cylinder is fixedly installed at the top of the support plate 13. A lifting rod 15 is fixedly connected to the output end of the telescopic cylinder.

[0020] The bottom end of the lifting rod 15 is fixedly connected to the top end of the conical extrusion block 20. The top end of the driven bevel gear 12 is provided with a through hole that communicates with the inner wall of the mounting cylinder 16. The inner ring surface of the through hole is slidably connected to the circumferential surface of the lifting rod 15. A circular plate 18 that is slidably connected to the circumferential surface of the lifting rod 15 is fixedly connected to one end of the inner wall of the mounting cylinder 16 near the driven bevel gear 12.

[0021] The clamping block 21 has an installation groove at one end away from the conical extrusion block 20. A first spring 24 is connected between the installation groove and the inner wall of the installation cylinder 16. A sleeve plate 17 is slidably connected to the inner wall of the installation cylinder 16 near the top of the conical extrusion block 20. A second spring 19 is connected between the top of the sleeve plate 17 and the bottom of the circular plate 18.

[0022] During use, when the conveyor belt 2 transports the bottle to be capped to directly below the clamping block 21, the telescopic cylinder is activated and pushes the lifting rod 15 downward. The lifting rod 15 drives the conical extrusion block 20 fixed at the bottom to descend synchronously. The conical outer wall of the conical extrusion block 20 contacts the sliding wheel 22 at the top of the clamping block 21. Because the clamping block 21 always moves towards the conical extrusion block 20 under the elastic force of the first spring 24, the sliding wheel 22 and the inclined surface of the conical extrusion block 20 remain in close contact.

[0023] As the conical extrusion block 20 continues to descend, its gradually increasing diameter conical structure generates radial thrust on the sliding wheel 22, pushing multiple evenly distributed clamping blocks 21 to contract towards the center along the inner wall of the mounting cylinder 16. The clamping blocks 21 slide along the fixed column 25 through the moving hole to ensure a stable moving trajectory, and finally tightly clamp the bottle cap through the anti-slip pad 23 on the inner wall, completing the clamping action.

[0024] After clamping is completed, the drive motor starts and drives the active bevel gear 10 to rotate. The active bevel gear 10 drives the connecting bevel gear 11 that meshes with it to rotate. The connecting bevel gear 11 then drives the driven bevel gear 12 to rotate synchronously. The mounting cylinder 16 fixed at the bottom of the driven bevel gear 12 rotates together with it. The mounting cylinder 16 drives the internal clamping block 21 to rotate through the fixed column 25, thereby driving the clamped bottle cap to rotate, so as to achieve a threaded sealing connection with the bottle mouth.

[0025] During the capping process, the torque sensor 14 installed on the outer ring surface of the mounting cylinder 16 monitors the change in capping torque in real time and transmits the detection data to the control device in real time. When the detected torque value is lower than the preset threshold, the control device increases the speed of the drive motor to increase the tightening force. When the torque value exceeds the threshold, the motor speed is reduced to avoid damage to the bottle cap or bottle mouth, thus ensuring stable capping quality. Example

[0026] Reference Figure 1 and Figure 2 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the outer wall of the clamping block 21 is provided with a plurality of evenly distributed moving holes, the inner wall of the moving holes is slidably connected to a fixing post 25 which is fixedly connected to the inner wall of the mounting cylinder 16, and the bottom end of the clamping block 21 near the conical extrusion block 20 is fixedly connected to an anti-slip pad 23.

[0027] Both ends of the outer wall of the body 1 are fixedly connected to a fixing plate 4. A micro cylinder 5 is fixedly connected to the top of the fixing plate 4. A clamping plate 6 is fixedly connected to the output end of the micro cylinder 5. Two evenly distributed cylinders 3 are fixedly connected to the inner wall of one of the fixing plates 4. A straight plate is fixedly connected to the top of the two cylinders 3. A lifting cylinder is fixedly connected to the top of the straight plate. A connecting plate 7 is fixedly connected to the output end of the lifting cylinder. The inner wall of the connecting plate 7 is slidably connected to the circumferential surface of the cylinder 3. The surface of the connecting plate 7 is fixedly connected to the outer wall of the mounting frame 8.

[0028] During use, if there is a deviation between the horizontal position of the clamping block 21 and the bottle cap before screwing on the cap, the lifting cylinder will start and push the connecting plate 7 to move axially along the two cylinders 3. The connecting plate 7 will drive the fixedly connected mounting bracket 8 to move synchronously. The mounting bracket 8 will then drive the rectangular block 9 to slide along the machine body 1 until the clamping block 21 and the bottle cap are on the same vertical line, ensuring clamping alignment accuracy.

[0029] After the bottle cap is tightened and sealed, the telescopic cylinder drives the lifting rod 15 to return to its original position. The conical pressing block 20 moves upward accordingly, and its radial thrust on the sliding wheel 22 gradually increases. At this time, the clamping block 21 squeezes the first spring 24 and moves along the fixed column 25 toward the inner wall of the mounting cylinder 16, releasing the clamping of the bottle cap. At the same time, the sleeve plate 17 pushes the clamping block 21 downward under the elastic force of the second spring 19 to assist it in quickly returning to its original position.

[0030] Finally, the lifting cylinder drives the connecting plate 7 and the mounting bracket 8 to reset along the cylinder 3, so that the clamping block 21 returns to the initial position, waiting for the conveyor belt 2 to transport the next bottle to be capped, and enter the next working cycle. During this process, the miniature cylinders 5 on both sides of the machine body 1 can drive the clamping plate 6 to assist in fixing the bottle and prevent the bottle from shaking when capping.

[0031] The remaining structure is the same as that in Example 1.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A capping head device with torque feedback for a filling and capping machine, comprising a machine body (1), wherein the machine body (1) is provided with a conveyor belt (2), and the top end of the conveyor belt (2) is provided with a rectangular block (9) that can slide up and down, and the top end of the rectangular block (9) is fixedly connected to a mounting frame (8), characterized in that: The cross-section of the mounting bracket (8) is in the shape of a "C", and a driving bevel gear (10) is rotatably connected to the top end of the inner wall of the mounting bracket (8). A connecting bevel gear (11) is meshed with the outer wall of the driving bevel gear (10). A driven bevel gear (12) is meshed with the outer wall of the connecting bevel gear (11). A mounting cylinder (16) is fixedly connected to the bottom end of the driven bevel gear (12). A plurality of uniformly distributed clamping blocks (21) are slidably connected to the inner wall of the mounting cylinder (16). A sliding wheel (22) is rotatably connected to the top end of the clamping block (21). A conical extrusion block (20) is slidably connected to the circumferential surface of the sliding wheel (22). A torque sensor (14) is installed at one end of the outer ring surface of the mounting cylinder (16) close to the driven bevel gear (12).

2. The capping head device with torque feedback for a filling and capping machine according to claim 1, characterized in that: A driving motor is fixedly installed at the top end of the mounting bracket (8). The output end of the driving motor is fixedly connected to the top end of the driving bevel gear (10). A support plate (13) is fixedly connected to the bottom end of the inner wall of the mounting bracket (8). The support plate (13) is in the shape of an "L". A telescopic cylinder is fixedly installed at the top end of the support plate (13). The output end of the telescopic cylinder is fixedly connected to a lifting rod (15).

3. The capping head device with torque feedback for a filling and capping machine according to claim 2, characterized in that: The bottom end of the lifting rod (15) is fixedly connected to the top end of the conical extrusion block (20). A through hole communicating with the inner wall of the mounting cylinder (16) is opened at the top end of the driven bevel gear (12). The inner ring surface of the through hole is slidably connected to the circumferential surface of the lifting rod (15). A circular plate (18) slidably connected to the circumferential surface of the lifting rod (15) is fixedly connected to one end of the inner wall of the mounting cylinder (16) close to the driven bevel gear (12).

4. The capping head device with torque feedback for a filling and capping machine according to claim 3, characterized in that: An installation groove is opened at one end of the clamping block (21) far from the conical extrusion block (20). A first spring (24) is connected between the installation groove and the inner wall of the mounting cylinder (16). A sleeve plate (17) is slidably connected to one side of the inner wall of the mounting cylinder (16) close to the top end of the conical extrusion block (20). A second spring (19) is connected between the top end of the sleeve plate (17) and the bottom end of the circular plate (18).

5. The capping head device with torque feedback for a filling and capping machine according to claim 1, characterized in that: A plurality of uniformly distributed moving holes are opened on the outer wall of the clamping block (21). A fixing column (25) fixedly connected to the inner wall of the mounting cylinder (16) is slidably connected to the inner wall of the moving hole. An anti-slip pad (23) is fixedly connected to the bottom end of one side of the clamping block (21) close to the conical extrusion block (20).

6. The capping head device with torque feedback for a filling and capping machine according to claim 1, characterized in that: Fixing plates (4) are fixedly connected to both ends of the outer wall of the machine body (1). A micro cylinder (5) is fixedly connected to the top end of the fixing plate (4). A clamping plate (6) is fixedly connected to the output end of the micro cylinder (5). Two uniformly distributed cylinders (3) are fixedly connected to the inner wall of one of the fixing plates (4). A straight plate is fixedly connected to the top ends of the two cylinders (3). A lifting cylinder is fixedly connected to the top end of the straight plate. A connecting plate (7) is fixedly connected to the output end of the lifting cylinder. The inner wall of the connecting plate (7) is slidably connected to the circumferential surface of the cylinder (3). The surface of the connecting plate (7) is fixedly connected to the outer wall of the mounting bracket (8).

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