A screw cap mechanism with torque display

Abstract

The utility model discloses a kind of twist force display's screw cap mechanism, including the buffer module being fixed on screw cap rack and being arranged in the side of buffer module screw cap module, the screw cap module includes the driving assembly, torque sensor and screw cap head sequentially arranged from top to bottom, driving assembly is composed of servo motor and the reduction gearbox being installed in servo motor output end, torque sensor bottom and screw cap head between being provided with the connecting plate extending towards buffer module, the buffer module includes by multiple plate body bolt connection and is composed of single-side opening fixed part, vertical guide rail is installed in fixed part inner wall, slider on guide rail is fixed with connecting plate end, connecting plate and fixed part top between being provided with buffer spring. The utility model increases torque sensor on the basis of original screw cap head, real-time display torque value on whole machine display screen module during screwing, it is convenient to adjust in time, external buffer module avoids that screw cap module overall structure is too long to cause structural strength reduction, different specifications of torque sensor and buffer module can be replaced on the basis of existing screw cap head.

Description

Technical Field

[0001] This utility model relates to the field of capping device technology, and in particular to a capping mechanism with torque display. Background Technology

[0002] In the production of bottled liquids, capping is a crucial step. However, during actual production, the sealing force between the cap and the bottle neck can vary between different batches, resulting in caps that are too tight or too loose. Caps that are too tight require significant torque to open, making them difficult and reducing user experience; caps that are too loose can lead to poor sealing, allowing air to enter the bottle and hindering storage. Therefore, it is necessary to conduct random checks on the production line to test the maximum torque required to open the cap, allowing for timely adjustments to the relevant parameters of the capping process.

[0003] In existing capping devices, the capping head cannot display the specific torque during operation, making it impossible to detect abnormalities in the capping process in a timely manner. For example, excessive torque may cause the cap to break prematurely, while insufficient torque may result in incomplete capping. Furthermore, the buffer spring in the existing capping mechanism is coaxially mounted with the capping head, which limits the installation specifications of the buffer spring. Adding an additional torque sensor would result in an excessively long overall length of the capping mechanism, affecting structural strength. Utility Model Content

[0004] To address the aforementioned technical problems, a capping mechanism with torque display is provided.

[0005] To achieve the above objectives, this utility model discloses a capping mechanism with torque display, including a buffer module fixed on a capping frame and a capping module disposed on the side of the buffer module. The capping module includes a drive assembly, a torque sensor, and a capping head arranged sequentially from top to bottom. The drive assembly consists of a servo motor and a reduction gearbox installed at the output end of the servo motor. A connecting plate extending toward the buffer module is disposed between the bottom of the torque sensor and the capping head. The buffer module includes a fixing member with a single-sided opening, which is composed of multiple plates bolted together. A vertical guide rail is installed on the inner wall of the fixing member. A slider on the guide rail is fixed to the end of the connecting plate. A buffer spring is disposed between the connecting plate and the top of the fixing member.

[0006] Furthermore, the buffer spring is sleeved on the surface of the guide rod inside the fixing member, and the guide rod is movably installed in the bushing on the top of the fixing member and the connecting plate. The two ends of the buffer spring abut against the boss on the inner side of the bushing.

[0007] Furthermore, the torque sensor is equipped with a communication connector that connects to the display module of the rotary casting machine.

[0008] Furthermore, a rotating air distribution ring is installed on the top of the capping head, and a vertical plate fixed to the bottom of the connecting plate is provided on the side of the rotating air distribution ring near the fixing component. A piston is installed at the bottom of the rotating component inside the rotating air distribution ring, and a central air passage connected to the external air inlet is opened in the center of the rotating component.

[0009] Furthermore, the center of the capping head is provided with a herringbone-shaped positioning component. Each positioning slot in the positioning component is equipped with a rotating block. The rotating block is movably installed in the positioning slot by a horizontally arranged pin. The fixed section below each rotating block is engaged in the arc-shaped slot at the top of the corresponding claw. The center of the fixed section is abutted against the top of the claw by a bolt.

[0010] Furthermore, a radially arranged return spring is installed inside the claw, and the other side of the return spring abuts against the positioning hole on the surface of the positioning member.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a capping mechanism with torque display. A torque sensor is added to the original capping head. During the capping process, the torque value is displayed in real time on the display screen module of the whole machine, which is convenient for timely adjustment. The external buffer module avoids the overall structure of the capping module from being too long, which would reduce the structural strength. Different specifications of torque sensors and buffer modules can be replaced on the basis of the existing capping head. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the present invention.

[0015] Figure 3 This is a schematic diagram of the capping head of this utility model.

[0016] Figure 4 This is a schematic diagram of the positioning component of this utility model.

[0017] In the diagram: 1 is the buffer module; 11 is the guide rail; 2 is the drive assembly; 3 is the torque sensor; 4 is the rotating air distribution ring; 41 is the rotating component; 42 is the piston; 5 is the capping head; 51 is the positioning component; 511 is the positioning groove; 512 is the positioning hole; 52 is the rotating block; 521 is the fixed section; 53 is the pin; 54 is the pawl; 55 is the return spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] One embodiment of this utility model is as follows: Figure 1 and Figure 2 As shown, the capping module includes a drive assembly 2, a torque sensor 3, and a capping head 5 arranged sequentially from top to bottom. The drive assembly 2 consists of a servo motor and a reduction gearbox installed at the output end of the servo motor. A connecting plate 6 extending towards the buffer module 1 is provided between the bottom of the torque sensor 3 and the capping head 5. The buffer module 1 includes a fixing component with a single-sided opening, which is composed of multiple plates bolted together. A vertical guide rail 11 is installed on the inner wall of the fixing component. The slider on the guide rail 11 is fixed to the end of the connecting plate 6. A buffer spring 12 is provided between the connecting plate 6 and the top of the fixing component. A torque sensor is added to the original capping head. During the capping process, the torque value is displayed in real time on the display module of the whole machine, which is convenient for timely adjustment. The external buffer module avoids the overall structure of the capping module being too long, which would reduce the structural strength. Different specifications of torque sensors and buffer modules can be replaced based on the existing capping head.

[0020] like Figure 1 As shown, the buffer spring 12 is sleeved on the guide rod surface inside the fixing part. The guide rod is movably installed in the bushing on the top of the fixing part and the connecting plate 6. The two ends of the buffer spring 12 abut against the boss inside the bushing. When the capping machine frame drives the whole to descend during the capping process, the capping head abuts against the cap body. The reaction force it receives acts on the buffer spring. After being compressed and deformed by the external force, the buffer spring moves vertically along the side guide rail to buffer.

[0021] like Figure 1 As shown, the torque sensor 3 is equipped with a communication connector that connects to the display module of the rotary casting machine. Data is transmitted via a wired or wireless communication module, so that the detected torque value can be displayed intuitively on the display module for easy observation by the operator.

[0022] like Figure 2As shown, a rotating air distribution ring 4 is installed on the top of the capping head 5, which provides power to the piston 42 located below the rotating air distribution ring 4. Rotating bearings are provided at the upper and lower ends of the rotating air distribution ring 4, and a rotating component 41 with a central air passage is provided inside the rotating air distribution ring 4. The central air passage is connected to the external air inlet through the rotating air distribution ring 4. The bottom of the rotating component in the center of the rotating air distribution ring 4 is connected to a piston, and a round-headed pressure block is connected to the bottom of the piston. Another set of buffer springs is also provided below the piston for overall buffering. The top of the rotating component is connected by a key to drive the capping head below to rotate. The end of the round-headed pressure rod is located at the center of the three sets of rotating blocks and abuts against the top of the rotating blocks. A vertical plate fixed to the bottom of the connecting plate 6 is provided on the side of the rotating air distribution ring 4 near the fixing component.

[0023] like Figure 3 and Figure 4 As shown, the capping head 5 has a herringbone-shaped positioning component 51 at its center. Each positioning groove 511 in the positioning component 51 contains a rotating block 52. The rotating block 52 is movably mounted in the positioning groove 511 via a horizontally arranged pin 53. The fixed section below each rotating block 52 is engaged in the arc-shaped groove at the top of the corresponding claw 54. The center of the fixed section abuts against the top of the claw 54 via a bolt. A positioning pin is also movably mounted at the center of the positioning block. After the capping head contacts the bottle cap at its bottom, the positioning pin is compressed and rises. After the capping is completed, the positioning pin descends under its own weight, pushing the bottle cap out, preventing the bottle cap from being difficult to remove from the claw. Simultaneously, the positioning pin... The column provides a limiting function for the steering block to prevent excessive rotation. The claw 54 is equipped with a radially arranged return spring 55. The other side of the return spring 55 abuts against the positioning hole 512 on the surface of the positioning component 51. The rotary joint on the outside of the rotating gas distribution ring drives the piston to descend. The round-headed pressure block at the bottom of the piston descends and squeezes the rotating block. During the capping process, the capping frame drives the whole to descend until it abuts against the bottle cap. After the top of the rotating block is subjected to an outward force, it rotates around the pin shaft. The claw connected to the bottom fixed section retracts inward to compress the return spring, completing the bottle cap clamping action. After the capping is completed, the piston returns to its original position and releases the bottle cap.

[0024] Several points need to be clarified: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and the relative positional relationships may change when the absolute position of the described objects changes. Second, in this document, relational terms such as "first" and "second" are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.

[0025] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A capping mechanism with torque display, comprising a buffer module (1) fixed on a capping frame and a capping module disposed on the side of the buffer module (1), characterized in that, The capping module includes a drive assembly (2), a torque sensor (3), and a capping head (5) arranged sequentially from top to bottom. The drive assembly (2) consists of a servo motor and a gearbox installed at the output end of the servo motor. A connecting plate (6) extending toward the buffer module (1) is provided between the bottom of the torque sensor (3) and the capping head (5). The buffer module (1) includes a fixing component with a single-sided opening, which is composed of multiple plates connected by bolts. A vertical guide rail (11) is installed on the inner wall of the fixing component. The slider on the guide rail (11) is fixed to the end of the connecting plate (6). A buffer spring (12) is provided between the connecting plate (6) and the top of the fixing component.

2. A capping mechanism with torque display according to claim 1, characterized in that, The buffer spring (12) is sleeved on the guide rod surface inside the fixing member. The guide rod is movably installed in the bushing on the top of the fixing member and the connecting plate (6). The two ends of the buffer spring (12) abut against the boss inside the bushing.

3. A capping mechanism with torque display according to claim 1, characterized in that, The torque sensor (3) is equipped with a communication connector to connect to the display module of the rotary injection machine.

4. A capping mechanism with torque display according to claim 1, characterized in that, The top of the capping head (5) is equipped with a rotating air distribution ring (4). The rotating air distribution ring (4) is provided with a vertical plate fixed to the bottom of the connecting plate (6) on the side near the fixing component. The bottom of the rotating component (41) inside the rotating air distribution ring (4) is equipped with a piston (42). The center of the rotating component (41) is provided with a central air passage that is connected to the external air inlet.

5. A capping mechanism with torque display according to claim 4, characterized in that, The center of the capping head (5) is provided with a herringbone-shaped positioning component (51). Each positioning groove (511) in the positioning component (51) is equipped with a rotating block (52). The rotating block (52) is movably installed in the positioning groove (511) by a horizontally arranged pin (53). The fixed section below each rotating block (52) is engaged in the arc-shaped groove at the top of the corresponding claw (54). The center of the fixed section is abutted against the top of the claw (54) by a bolt.

6. A capping mechanism with torque display according to claim 5, characterized in that, The claw (54) is equipped with a radially arranged return spring (55), and the other side of the return spring (55) abuts against the positioning hole (512) on the surface of the positioning member (51).

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