Cap grabbing head for cap screwing machine

Abstract

The utility model relates to a cap grabbing head for a cap screwing machine, which comprises a clamping jaw and a compensation plate, a clamping groove is axially arranged on the inner side wall of the clamping jaw, a clamping block in sliding connection with the clamping groove is fixedly arranged on the compensation plate, sliding grooves are arranged on two sides of the clamping groove, a sliding block in sliding connection with the sliding grooves is arranged on the compensation plate, and springs are arranged at two axial ends of the sliding block in the sliding grooves. The stability and the direction precision of the compensation plate in the moving process are ensured through axial sliding fit of the clamping groove and the clamping block and a bidirectional guide structure of the sliding groove and the sliding block, displacement deviation caused by speed difference can be automatically compensated in the cap screwing process by combining the elastic buffering effect of the springs at the two ends, dynamic self-adaptive alignment of a bottle cap and a bottle opening is achieved, and the stability and the direction precision of the compensation plate are improved. The cap screwing precision and success rate are effectively improved, and the stability and reliability of continuous operation of equipment are guaranteed through the self-resetting design.

Description

Technical Field

[0001] This utility model relates to the field of capping machine technology, and specifically to a cap gripping head for capping machines. Background Technology

[0002] In the packaging process of syrup production, capping is a crucial step in product sealing, and its quality and efficiency directly affect the product's sealing performance and production efficiency. During capping, the precise matching of the cap's thread rotation speed and the capping head's descent speed is paramount, requiring precise coordination between the two using advanced control systems such as PLCs, based on the cap's thread pitch. However, with current technology, if the two speeds are mismatched, problems such as excessively fast capping head descent causing thread damage and cap tilting / jamming, or insufficient speed leading to loose caps and reduced production efficiency, will negatively impact product quality and the production process. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cap gripping head for a capping machine.

[0004] The purpose of this utility model can be achieved through the following technical solution: a cap gripper head for a capping machine, including a gripper and a compensation plate. The inner sidewall of the gripper is provided with a slot along the axial direction. A block is fixed on the compensation plate and slidably connected to the slot. Slide grooves are provided on both sides of the slot. A slider is provided on the compensation plate and slidably connected to the slide groove. Springs are provided at both ends of the slider in the slide groove along the axial direction.

[0005] Preferably, the compensation plate has steps.

[0006] Preferably, the inner side of the compensation plate is provided with a rubber pad.

[0007] Preferably, spring holes are provided at both ends of the slide and the slider, corresponding to the positions of the springs.

[0008] Preferably, the spring hole on the slide is internally threaded with an adjusting screw.

[0009] The beneficial effects of this utility model are as follows: the axial sliding cooperation between the slot and the block, and the bidirectional guiding structure of the groove and the slider, ensure the stability and directional accuracy of the compensation plate during movement. Combined with the elastic buffering effect of the springs at both ends, it can automatically compensate for the displacement deviation caused by the speed difference during the capping process, realize the dynamic adaptive alignment of the cap and the bottle mouth, effectively improve the capping accuracy and success rate. Its self-resetting design also ensures the stability and reliability of the equipment during continuous operation. Attached Figure Description

[0010] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of a cap gripping head for a capping machine according to the present invention.

[0012] Figure 2 This is a cross-sectional view of a cap-gripping head for a capping machine according to the present invention.

[0013] Figure 3 This is a schematic diagram of the structure of a cap-gripping jaw for a capping machine according to the present invention.

[0014] Figure 4 This is a schematic diagram of the compensation plate structure for the cap-grabbing head of a capping machine according to the present invention.

[0015] The labels in the diagram represent: 1. Gripper; 2. Compensating plate; 3. Slot; 4. Block; 5. Slide; 6. Slider; 7. Spring; 8. Step; 9. Rubber pad; 10. Spring hole; 11. Adjusting screw. Detailed Implementation

[0016] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0017] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

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

[0019] See Figures 1 to 4As shown, the structure of this utility model is as follows: a cap gripper head for a capping machine, including a gripper 1 and a compensating plate 2. The inner wall of the gripper 1 has an axially oriented groove 3. A locking block 4, which is slidably connected to the groove 3, is fixed on the compensating plate 2. Through the cooperation of the groove 3 and the locking block 4, the compensating plate 2 can only move axially along the groove 3. When speed mismatch occurs during the capping process, the compensating plate 2 can adjust the position of the cap by moving, achieving precise alignment with the bottle mouth. Sliding grooves 5 are provided on both sides of the groove 3. A slider 6, which is slidably connected to the sliding groove 5, is provided on the compensating plate 2. The sliding groove 5 provides sliding space for the slider 6. The space restricts the movement direction of the slider 6, ensuring smooth and unbiased axial movement of the compensation plate 2, further ensuring the stability and accuracy of the movement of the compensation plate 2. Springs 7 are provided at both ends of the slider 6 in the groove 5. Under normal circumstances, the springs 7 at the upper and lower ends work together to keep the compensation plate 2 in the middle position, providing an initial stable state for the capping operation. When the compensation plate 2 moves, the slider 6 forces the springs 7 to undergo elastic deformation, allowing the bottle cap to move up or down a certain distance accordingly, effectively compensating for speed differences during the capping process and ensuring the quality and effect of capping.

[0020] like Figure 4 As shown, the compensation plate 2 is provided with a step 8. Specifically, the step 8 is used to limit the contact between its end face and the top of the bottle cap when gripping the bottle cap. During the gripping process, the axial insertion depth of the bottle cap is precisely limited to prevent the bottle cap from being misaligned due to excessive downward movement or tilting. This ensures that the bottle cap is in the correct position in the initial gripping stage, providing a reliable spatial alignment basis for the thread engagement compensation of the subsequent capping action.

[0021] like Figure 4 As shown, the inner side of the compensation plate 2 is provided with a rubber pad 9. Specifically, the rubber pad 9 can increase the friction with the outer wall of the bottle cap to prevent the bottle cap from slipping due to rotation or vibration during the clamping process, and also prevent the bottle cap from being damaged.

[0022] like Figure 3 , Figure 4 As shown, spring holes 10 are provided at both ends of the slide 5 and the slider 6 corresponding to the positions of the spring 7. Specifically, the spring holes 10 are used to position the installation position of the spring 7, provide radial constraint and axial guidance for the spring 7, and ensure that the spring 7 always extends and contracts along the preset trajectory when the slide 5 and the slider 6 move relative to each other, preventing the spring 7 from fatigue fracture due to non-axial stress caused by sway or torsion. At the same time, the matching design between the spring holes 10 and the ends of the spring 7 can limit the initial preload and maximum deformation range of the spring 7, and prevent the spring 7 from being overloaded and damaged when the slider 6 reaches the limit position.

[0023] like Figure 1 , Figure 2As shown, the spring hole 10 on the slide 5 is internally threaded with an adjusting screw 11. Specifically, the compression of the spring 7 can be changed by rotating the adjusting screw. When the adjusting screw is screwed into the spring hole 10, it will compress the spring 7 and increase its preload. When it is screwed out, it will reduce the preload of the spring 7. This allows the cap gripper to flexibly adjust the initial position of the compensation plate 2 and the elastic compensation force of the spring 7 according to the differences in the thread pitch, height or material hardness of the cap.

[0024] In practical use, during the capping process, the gripper 1 slides against the locking block 4 on the compensation plate 2 through the inner groove 3, constraining the compensation plate 2 to move only axially. In the initial state, the compensation plate 2 is kept in the middle position under the balanced preload of the springs 7 at both ends, ensuring that the gripper 1 and the bottle cap contact surface are in a stable centering state. When the capping machine and the bottle body rotation speed are mismatched, the axial force generated between the bottle cap and the bottle mouth pushes the compensation plate 2 to move. At this time, the slider 6 slides along the slide groove 5 and compresses the corresponding side spring 7, while the other side spring 7 is stretched synchronously, so that the bottle cap can adaptively move up or down, correcting the relative position deviation between the bottle cap and the bottle mouth in real time. The guiding effect of the slide groove 5 and the elastic reset characteristic of the spring 7 together maintain the linearity and controllability of the axial movement of the compensation plate 2, which not only avoids rigid impact damage to the bottle cap threads, but also eliminates defects such as capping misalignment and poor sealing through dynamic compensation, ultimately achieving a high-precision capping effect.

[0025] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A cap gripping head for a cap screwing machine, characterized in that: Includes a gripper (1) and a compensation plate (2). The inner sidewall of the gripper (1) is provided with a slot (3) along the axial direction. The compensation plate (2) is fixed with a block (4) that is slidably connected to the slot (3). The slot (3) is provided with sliding grooves (5) on both sides. The compensation plate (2) is provided with a slider (6) that is slidably connected to the sliding groove (5). Springs (7) are provided at both ends of the slider (6) in the sliding groove (5).

2. A cap pickup head for a cap screwing machine according to claim 1, characterized in that: The compensation plate (2) is provided with a step (8).

3. A cap pickup head for a cap screwing machine according to claim 1, characterized in that: The inner side of the compensation plate (2) is provided with a rubber pad (9).

4. A cap pickup head for a cap screwing machine according to claim 1, characterized in that: Spring holes (10) are provided at both ends of the slide (5) and the slider (6) corresponding to the positions of the spring (7).

5. A cap pickup head for a cap screwing machine according to claim 4, characterized in that: An adjusting screw (11) is threaded into the spring hole (10) on the slide (5).

Images