A positioning structure for carton corner edge sealing

Abstract

The utility model discloses a positioning structure for carton corner edge seal, specifically relates to packaging field, and including the clamping positioning seat for matching with carton corner seal equipment, and the clamping positioning seat is provided with the horizontal clamping mechanism and longitudinal clamping mechanism of same structure, horizontal clamping mechanism and longitudinal clamping mechanism all include two symmetrical movable clamping frame, and the bottom center of movable clamping frame is connected with two -way screw rod. The utility model discloses through the cooperation of horizontal clamping mechanism and longitudinal clamping mechanism, adopts positioning accuracy height, is suitable for automatic production line, can adjust the distance between two movable clamping frames flexibly to adapt to the carton of different size, and the universality is strong, and the production is convenient, and will sliding friction change for rolling friction, greatly reduces the risk of scratching carton surface, and the spring of low elasticity coefficient provides the soft clamping force, avoids the carton deformation etc. problems that rigid clamping can cause.

Description

Technical Field

[0001] This utility model relates to the field of packaging, and more specifically, to a positioning structure for sealing the corner edges of a carton. Background Technology

[0002] In the packaging industry, cardboard boxes are a widely used transport packaging container. After they are formed and filled with goods, their top openings need to be sealed. Sealing the eight corners of the cardboard box (especially the top four corners) (such as by applying tape or heat sealing) is a common process step, which aims to enhance the sealing performance, prevent opening, and improve the overall appearance.

[0003] To achieve automated production, the industry generally uses automatic carton sealing equipment. In these machines, a key station is to accurately position and clamp the cartons to ensure that the corner sealing mechanism (such as the tape applicator) can stably and accurately complete the operation at the corner.

[0004] Currently, existing corner positioning and clamping structures for cardboard boxes typically have the following technical problems:

[0005] 1. Overly rigid positioning can easily damage the carton. Many positioning mechanisms use rigid clamps or fixing fixtures. During the clamping process, especially for cartons of different specifications or with slight manufacturing errors, they lack effective buffering and fault tolerance. This rigid contact can easily cause the corners of the corrugated carton to be crushed, the surface to be scratched, or permanent deformation to occur, directly affecting the quality of product packaging.

[0006] 2. Poor adaptability and inconvenient adjustment: For production lines that need to process cartons of various sizes, traditional positioning fixtures are very cumbersome to adjust. They often require manual replacement of fixtures or complex mechanical adjustments, which affects the production line's changeover efficiency and cannot meet the rapid response requirements of modern flexible production.

[0007] 3. High frictional resistance affects positioning and the surface of the carton. The use of clamping plates in four directions causes sliding friction with clamping plates in other directions during the contact and pushing process, which increases the risk of scratching the surface of the carton. Utility Model Content

[0008] In order to overcome the above-mentioned defects of the prior art, the present invention provides a positioning structure for sealing the corner edges of a carton.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a positioning structure for sealing the corner of a carton, comprising a clamping positioning seat for matching with a carton corner sealing device, wherein the clamping positioning seat is provided with a transverse clamping mechanism and a longitudinal clamping mechanism having the same structure;

[0010] Both the transverse clamping mechanism and the longitudinal clamping mechanism include two symmetrically arranged movable clamping frames. A bidirectional threaded rod is connected to the bottom center of the movable clamping frame. A servo motor that drives the bidirectional threaded rod to rotate is fixedly installed on the outer wall of the clamping positioning seat. A control switch is also provided on the outer wall of the clamping positioning seat.

[0011] Each movable clamping frame includes a movable rod connected to the outside of a bidirectional threaded rod. Both ends of the movable rod are fixedly connected to vertical rods of a specified value. The top of the vertical rod extends above the clamping positioning seat, and a first mounting seat and a second mounting seat are fixedly provided at the middle and top positions of the vertical rod, respectively. A first roller is installed on the inner sidewall of each first mounting seat and second mounting seat. A buffer mechanism is fixedly installed on the inner sidewall of the vertical rod between the first mounting seat and the second mounting seat.

[0012] As a further improvement to the technical solution of this utility model, the top of the clamping and positioning seat is provided with strip-shaped limiting holes along the horizontal direction corresponding to the outer side of each vertical rod.

[0013] As a further improvement to the technical solution of this utility model, the bidirectional threaded rod at the bottom of the longitudinal clamping mechanism is arranged below the bidirectional threaded rod at the bottom of the transverse clamping mechanism, and the bidirectional threaded rod at the bottom of the longitudinal clamping mechanism and the bidirectional threaded rod at the bottom of the transverse clamping mechanism are arranged perpendicularly to each other.

[0014] As a further improvement to the technical solution of this utility model, the first roller is fixedly connected to the inner sidewalls of the first mounting base and the second mounting base by screws.

[0015] As a further improvement to the technical solution of this utility model, the two ends of the bidirectional threaded rod are provided with opposite thread directions at the connection points of the two movable clamping frames, and each movable rod has a threaded hole inside that matches the external thread structure at its location.

[0016] As a further improvement to the technical solution of this utility model, the buffer mechanism includes a buffer assembly fixedly connected to the inner wall of the movable rod, and a second roller is fixedly connected to the end of the buffer assembly.

[0017] As a further improvement to the technical solution of this utility model, the buffer assembly includes a connecting plate fixedly connected to the inner wall of the movable rod by screws. A fixed cylinder is welded and fixed to the inner wall of the connecting plate. A buffer rod fixedly connected to the second roller is provided on the inner wall of the end of the fixed cylinder. A movable plate is fixedly connected to one end of the buffer rod inside the fixed cylinder. A movable cavity is provided in the horizontal direction inside the fixed cylinder corresponding to the outside of the movable plate. A spring with a low elastic coefficient is connected between the end of the movable plate and the inner wall of the movable cavity.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model, through the cooperation of the transverse clamping mechanism and the longitudinal clamping mechanism, adopts servo motor drive and bidirectional threaded rod transmission, which has high positioning accuracy and good repeatability, and is suitable for automated production lines. The design of the bidirectional threaded rod ensures that the two symmetrical movable clamping frames move synchronously, ensuring that the clamping center remains unchanged and the positioning is accurate. By controlling the number of rotations or angle of the rotor of the servo motor, the distance between the two movable clamping frames can be flexibly adjusted, thereby adapting to cartons of different sizes, with strong versatility and convenient production changeover.

[0020] 2. By using the first and second rollers to contact the carton, and with multiple rollers in contact and clamping from front to back and left to right, sliding friction is transformed into rolling friction, which greatly reduces the risk of scratching the carton surface. The low elasticity coefficient spring provides a gentle clamping force, avoiding problems such as carton deformation that may be caused by rigid clamping. Attached Figure Description

[0021] Figure 1 This is a top view of the present invention.

[0022] Figure 2 This is a schematic diagram showing the arrangement of the transverse clamping mechanism and the longitudinal clamping mechanism on the clamping positioning seat in this utility model.

[0023] Figure 3 This is a schematic diagram of the movable clamping frame in this utility model.

[0024] Figure 4 This is a schematic diagram of the buffer mechanism in this utility model.

[0025] Figure 5 This is a cross-sectional view of the buffer component in this utility model.

[0026] The attached figures are labeled as follows: 1. Clamping and positioning seat; 2. Movable clamping frame; 3. First roller; 4. Control switch; 5. Buffer mechanism; 6. Buffer assembly; 7. Second roller; 8. Strip-shaped limiting hole; 9. Bidirectional threaded rod; 10. Servo motor; 201. Movable rod; 202. Vertical rod; 203. First mounting seat; 204. Second mounting seat; 205. Screw hole; 601. Connecting plate; 602. Fixed cylinder; 603. Buffer rod; 604. Movable plate; 605. Movable cavity; 606. Spring. Detailed Implementation

[0027] 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.

[0028] As attached Figure 1-5 The positioning structure shown includes a clamping and positioning seat 1 for matching with a carton corner sealing device. The clamping and positioning seat 1 is provided with a transverse clamping mechanism and a longitudinal clamping mechanism with the same structure.

[0029] Both the transverse clamping mechanism and the longitudinal clamping mechanism include two symmetrically arranged movable clamping frames 2. The bottom center of the movable clamping frame 2 is connected to a bidirectional threaded rod 9. A servo motor 10 that drives the bidirectional threaded rod 9 to rotate is fixedly installed on the outer wall of the clamping positioning seat 1. A control switch 4 is also provided on the outer wall of the clamping positioning seat 1.

[0030] Each movable clamping frame 2 includes a movable rod 201 connected to the outside of the bidirectional threaded rod 9. Both ends of the movable rod 201 are fixedly connected to a vertical rod 202 with a set value. The top of the vertical rod 202 extends above the clamping positioning seat 1. A first mounting seat 203 and a second mounting seat 204 are fixedly provided at the middle and top positions of the vertical rod 202, respectively. A first roller 3 is installed on the inner side wall of each first mounting seat 203 and second mounting seat 204. A buffer mechanism 5 is fixedly installed on the inner side wall of the vertical rod 202 between the first mounting seat 203 and the second mounting seat 204.

[0031] As attached Figure 1-3 As shown, the top of the clamping positioning seat 1 is provided with strip-shaped limiting holes 8 on the outside of each vertical rod 202 along the horizontal direction, which facilitates the limiting effect and improves the directional stability of clamping.

[0032] As attached Figure 1-2 As shown, the bidirectional threaded rod 9 at the bottom of the longitudinal clamping mechanism is located below the bidirectional threaded rod 9 at the bottom of the transverse clamping mechanism. The bidirectional threaded rod 9 at the bottom of the longitudinal clamping mechanism and the bidirectional threaded rod 9 at the bottom of the transverse clamping mechanism are vertically arranged to facilitate stable clamping in four directions: front, back, left, and right.

[0033] As attached Figure 2-3 As shown, the first roller 3 is fixedly connected to the inner sidewalls of the first mounting base 203 and the second mounting base 204 by screws, which facilitates the installation and fixation of the first roller 3 on the first mounting base 203 and the second mounting base 204.

[0034] As attached Figure 2-3As shown, the threads on the outer surfaces of the two ends of the bidirectional threaded rod 9 are opposite in direction to the connection of the two movable clamping frames 2. Each movable rod 201 has a screw hole 205 inside that matches the external thread structure at its position, so that the two movable clamping frames on each bidirectional threaded rod 9 can move synchronously in opposite directions.

[0035] As attached Figure 2-4 As shown, the buffer mechanism 5 includes a buffer assembly 6 fixedly connected to the inner wall of the movable rod 201. A second roller 7 is fixedly connected to the end of the buffer assembly 6. The buffer assembly 6 includes a connecting plate 601 fixedly connected to the inner wall of the movable rod 201 by screws. A fixed cylinder 602 is welded and fixed to the inner wall of the connecting plate 601. A buffer rod 603 fixedly connected to the second roller 7 is provided on the inner wall of the end of the fixed cylinder 602. A movable plate 604 is fixedly connected to one end of the buffer rod 603 inside the fixed cylinder 602. A movable cavity 605 is provided in the horizontal direction inside the fixed cylinder 602 corresponding to the outside of the movable plate 604. A low elastic coefficient spring 606 is connected between the end of the movable plate 604 and the inner wall of the movable cavity 605 to facilitate flexible contact buffering and subsequent clamping.

[0036] Working principle: This utility model designs a positioning structure for sealing the corners of cartons, the specific structure of which is shown in the attached instruction manual. Figure 1-5 As shown, in use, the operator or an external robotic arm places the sealed carton onto the clamping and positioning seat 1. The operator controls the operation of two servo motors 10 on the transverse and longitudinal clamping mechanisms via control switch 4. In the transverse clamping mechanism, the servo motor 10 drives the transverse bidirectional threaded rod 9 to rotate. Because the threads at both ends of the threaded rod are in opposite directions and match the threaded holes 205 inside the movable rod 201, the two transverse movable clamping frames 2 will move synchronously, either towards each other or away from each other. During clamping, they move towards each other, moving closer to the left and right sides of the carton. Similarly, the longitudinal clamping mechanism operates in the same way, but it moves closer to the front and rear sides of the carton. During this closing process, the movable clamping... The buffer mechanism 5 on frame 2 will first contact the carton. Since the second roller 7 on the buffer mechanism 5 can rotate freely, it rolls and rubs when it contacts and presses against the side wall of the carton, which greatly reduces the possibility of scratching the carton and movement resistance. Because a low-coefficient spring 606 is used, the spring 606 is easy to deform and compress during the contact and clamping process, thus forming a buffering effect, absorbing the impact and vibration generated during the clamping process, and preventing the carton from being deformed or damaged by hard impact. After deformation, the clamping effect is achieved until the first roller 3 contacts the carton. The multiple rollers are all horizontally arranged, and they can roll when they contact the carton in the front, back and left and right directions, which can stably perform clamping adjustment and reduce wear.

[0037] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning structure for sealing the corners of a carton, comprising a clamping and positioning seat (1) for matching with a carton corner sealing device, characterized in that: The clamping and positioning seat (1) is provided with a transverse clamping mechanism and a longitudinal clamping mechanism with the same structure; Both the transverse clamping mechanism and the longitudinal clamping mechanism include two symmetrically arranged movable clamping frames (2). The bottom center of the movable clamping frame (2) is connected to a bidirectional threaded rod (9). The outer wall of the clamping positioning seat (1) is fixedly installed with a servo motor (10) that drives the bidirectional threaded rod (9) to rotate. The outer wall of the clamping positioning seat (1) is also provided with a control switch (4). Each movable clamp (2) includes a movable rod (201) connected to the outside of the bidirectional threaded rod (9). Both ends of the movable rod (201) are fixedly connected to a vertical rod (202) with a numerical setting. The top of the vertical rod (202) extends above the clamping positioning seat (1). A first mounting seat (203) and a second mounting seat (204) are fixedly provided at the middle and top positions of the vertical rod (202), respectively. A first roller (3) is installed on the inner side wall of each first mounting seat (203) and second mounting seat (204). A buffer mechanism (5) is fixedly installed on the inner side wall of the vertical rod (202) between the first mounting seat (203) and the second mounting seat (204).

2. The positioning structure for sealing the corner edges of a carton according to claim 1, characterized in that: The top of the clamping positioning seat (1) is provided with strip-shaped limiting holes (8) on the outside of each vertical rod (202) along the horizontal direction.

3. The positioning structure for sealing the corner edges of a carton according to claim 1, characterized in that: The bidirectional threaded rod (9) at the bottom of the longitudinal clamping mechanism is located below the bidirectional threaded rod (9) at the bottom of the transverse clamping mechanism, and the bidirectional threaded rod (9) at the bottom of the longitudinal clamping mechanism is perpendicular to the bidirectional threaded rod (9) at the bottom of the transverse clamping mechanism.

4. The positioning structure for sealing the corner edges of a carton according to claim 1, characterized in that: The first roller (3) is fixedly connected to the inner sidewalls of the first mounting base (203) and the second mounting base (204) by screws.

5. A positioning structure for sealing the corner edges of a carton according to claim 1, characterized in that: The two ends of the bidirectional threaded rod (9) have opposite thread directions at the connection points of the two movable clamps (2), and each movable rod (201) has a threaded hole (205) inside that matches the external thread structure at its location.

6. A positioning structure for sealing the corner edges of a carton according to claim 1, characterized in that: The buffer mechanism (5) includes a buffer assembly (6) fixedly connected to the inner wall of the movable rod (201), and a second roller (7) is fixedly connected to the end of the buffer assembly (6).

7. A positioning structure for sealing the corner edges of a carton according to claim 6, characterized in that: The buffer assembly (6) includes a connecting plate (601) fixedly connected to the inner wall of the movable rod (201) by screws. A fixed cylinder (602) is welded and fixed to the inner wall of the connecting plate (601). A buffer rod (603) fixedly connected to the second roller (7) is provided on the inner wall of the end of the fixed cylinder (602). A movable plate (604) is fixedly connected to one end of the buffer rod (603) inside the fixed cylinder (602). A movable cavity (605) is provided in the horizontal direction inside the fixed cylinder (602) corresponding to the outside of the movable plate (604). A spring (606) with a low elastic coefficient is connected between the end of the movable plate (604) and the inner wall of the movable cavity (605).

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