A bubble pressing mold capable of preventing the box edge from expanding outward

Abstract

The utility model discloses a kind of anti-box edge outward expansion's bubble pressing mould, it is related to packaging box processing technical field, including base, the middle part of base is fixedly installed with driving device, the top of base is fixedly installed with shift mechanism with ring shape arrangement at equal intervals, the top of shift mechanism is fixedly installed with extrusion mould group;The driving device includes rectangular groove and driving motor, and the driving motor is fixedly installed in the middle of the bottom of base.The utility model adopts the above structure, and the extrusion mould group can be adjusted along the base radial by the shift mechanism of the device, and the different packaging box peripheral size is adapted;Vertical and horizontal adjustment group can realize fine adjustment of height and horizontal direction, by adjusting screw rod, not only four mould plate spacings and height can be flexibly adjusted, but also mould plate can be conveniently disassembled and replaced, satisfy diversified production demand, improve mould versatility, reduce die change frequency, improve production efficiency and reduce cost.

Description

Technical Field

[0001] This utility model belongs to the field of packaging box processing technology, and specifically relates to a bubble compression mold to prevent the box edges from expanding outward. Background Technology

[0002] In the assembly process of packaging boxes, after the face paper is coated with glue, it is folded and bonded to the corrugated paper to form a shape. Then it enters the bubble pressing stage. In this stage, the inner mold and the outer mold work together to press the glued part to ensure a firm bond. Currently, most conventional bubble pressing molds are flat-press flat inner and outer mold structures. However, after bubble pressing is completed using this type of mold, when the face paper and corrugated paper of the packaging box are folded along the die-cutting line (pressing line, needle teeth) and the slotting line, a rebound stress will be generated. The flat-press flat bubble pressing mold cannot effectively eliminate this stress, which affects the forming quality and performance of the packaging box. To address the aforementioned issues, Chinese Patent No. CN220219894U discloses a novel bubble wrap mold. The inner mold of this mold is adapted to the dimensions of the packaging box's inner cavity, while the outer mold consists of two sets of first and second pressure plates corresponding to the long and short sides of the packaging box, respectively. An elastic body is placed on the inner side of the pressure plates. Through the cooperation of the curved surface and the concave surface of the inner mold, the outward expansion of the packaging box edges during bubble wrapping is effectively prevented, thus improving the packaging box's usability and aesthetics. However, in practical applications, the device still reveals many problems. It uses multiple cylinders for propulsion, which not only significantly increases the cost of use, but also makes the subsequent maintenance and repair of multiple cylinders cumbersome and complicated. At the same time, it is difficult to remove the template with the elastic body during use, and it cannot be flexibly adjusted according to different sizes of packaging boxes. It has obvious limitations in adapting to the production of diverse packaging boxes. It can be seen that the existing packaging box bubble molding technology has certain defects and shortcomings in practical applications and urgently needs to be improved and designed. Utility Model Content

[0003] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a bubble compression mold to prevent the box edge from expanding outward, so as to solve the problems raised in the background art.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A bubble compression mold for preventing box edge expansion includes a base, a driving device fixedly installed in the middle of the base, and an adjusting mechanism fixedly installed in a ring at equal intervals on the top of the base. An extrusion module is fixedly installed on the top of the adjusting mechanism. The driving device includes a rectangular groove and a drive motor. The drive motor is fixedly installed in the middle of the bottom of the base. The rectangular groove is opened in the middle of the top of the base. A first gear is rotatably connected to the bottom of the rectangular groove. A second gear is rotatably connected to the inner side of the rectangular groove in a ring with equal spacing. The first gear and the second gear are meshed. Both the first gear and the second gear are bevel gears. The inner end of the adjustment mechanism is connected to the outer side of the second gear.

[0005] As a preferred technical solution, the adjustment mechanism includes a slide groove, which is arranged in a ring at equal intervals on the top of the base. A threaded rod is rotatably connected inside the slide groove, and a slider is threadedly connected to the outer surface of the threaded rod. The slider is slidably connected inside the slide groove, and the top of the slider is connected to the bottom of the extrusion module. The inner end of the threaded rod is fixedly connected to the outer side of the second gear.

[0006] As a preferred technical solution, mounting brackets are fixedly installed at the four outer corners of the base, and mounting holes are provided on the inner side of the mounting brackets. The mounting holes are countersunk holes.

[0007] As a preferred technical solution, the extrusion module includes a vertical adjustment group, which is fixedly connected to the top of the slider. A horizontal adjustment group is fixedly installed on the top of the vertical adjustment group. A template is fixedly installed at the inner end of the horizontal adjustment group, and an elastic extrusion body is fixedly connected to the inner side of the template.

[0008] As a preferred technical solution, the vertical adjustment assembly includes a vertical rail, which is fixedly installed on the top of the slider. A vertical slide plate is slidably connected inside the vertical rail. The horizontal adjustment assembly is fixedly connected to the top of the vertical slide plate. A first screw is threadedly connected to one side of the upper end of the vertical rail. The end of the first screw passes through the vertical rail. A first limiting hole is provided at equal intervals on one side of the vertical slide plate. The end of the first screw is inserted into the inside of the first limiting hole.

[0009] As a preferred technical solution, the lateral adjustment group includes a horizontal rail, which is fixedly installed on the top of the vertical slide plate. A horizontal slide plate is slidably connected inside the horizontal rail. The inner end of the horizontal slide plate is fixedly connected to the outer side of the template. A second screw is threadedly connected to one side of the inner end of the horizontal rail. Second limiting holes are equally spaced on one side of the horizontal slide plate. The end of the second screw is inserted into the second limiting hole.

[0010] As a preferred technical solution, both the first screw and the second screw are hand-tightening screws, the cross-sectional shape of the internal cavity of the horizontal rail and the internal cavity of the guide rail are both convex, and the cross-sectional shape of the vertical slide plate and the horizontal slide plate are also convex.

[0011] In summary, the present invention has the following main advantages: First, this mold adopts a single drive motor with a gear transmission structure, which uses bevel gears to drive multiple second gears to synchronously drive the adjustment mechanism. Compared with the existing method of multiple cylinders pushing, it reduces the number of power components, lowers equipment purchase costs, simplifies the transmission system, reduces failure points, reduces the design of electrical equipment, and can also reduce the probability of failure and improve its service life and stability. Secondly, the adjustment mechanism of this device allows the extrusion module to be adjusted radially along the base to adapt to different packaging box outer dimensions; the vertical and horizontal adjustment groups can achieve fine adjustment in height and horizontal direction. By adjusting the screw, not only can the spacing and height of the four templates be flexibly adjusted, but the templates can also be easily disassembled and replaced to meet diverse production needs, improve mold versatility, reduce mold change frequency, improve production efficiency and reduce costs. Third, the mounting brackets and countersunk holes at the four corners of the base of this device facilitate stable installation and ensure structural stability. The template and elastic extrusion body are installed with the assistance of hand-tightening screws, making it easy to replace when worn or when the template is not suitable. With precise adjustment, the elastic extrusion body fits tightly against the packaging box, applying pressure evenly during bubble pressing, effectively preventing the box edges from expanding outward, improving the forming quality and aesthetics of the packaging box, and ensuring its performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a bottom view structural diagram of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a schematic diagram of the drive device structure of this utility model; Figure 5 This is a schematic diagram of the extrusion module structure of this utility model.

[0013] Reference numerals: 1. Base; 2. Drive unit; 21. Rectangular groove; 22. Drive motor; 23. First gear; 24. Second gear; 3. Adjustment mechanism; 31. Slide groove; 32. Threaded rod; 33. Slider; 4. Extrusion module; 41. Vertical adjustment group; 411. Vertical rail; 412. Vertical slide plate; 413. First screw; 414. First limiting hole; 42. Lateral adjustment group; 421. Horizontal rail; 422. Horizontal slide plate; 423. Second screw; 424. Second limiting hole; 43. Template; 44. Elastic extrusion body; 5. Mounting frame; 6. Mounting hole. Detailed Implementation

[0014] Example

[0015] refer to Figures 1 to 5This embodiment of a bubble compression mold for preventing box edge expansion includes a base 1, a driving device 2 fixedly installed in the middle of the base 1, an adjusting mechanism 3 fixedly installed in a ring at equal intervals on the top of the base 1, an extrusion module 4 fixedly installed on the top of the adjusting mechanism 3, a receiving platform for placing packaging boxes installed on the outside of the rectangular groove 21 on the top of the base 1, and a shielding frame installed on the outside of the rectangular groove 21, which can be used to place packaging boxes, and a template 43 located on the top of the receiving platform; The driving device 2 includes a rectangular groove 21 and a drive motor 22. The drive motor 22 is fixedly installed in the middle of the bottom of the base 1. The rectangular groove 21 is opened in the middle of the top of the base 1. A first gear 23 is rotatably connected to the bottom of the rectangular groove 21. A second gear 24 is rotatably connected to the inner side of the rectangular groove 21 in a ring at equal intervals. The first gear 23 and the second gear 24 are meshed. Both the first gear 23 and the second gear 24 are bevel gears. The inner end of the adjusting mechanism 3 is connected to the outer side of the second gear 24. When the bubble-pressing mold for preventing the box edge from expanding is working, the drive motor 22, which is fixedly installed in the middle of the bottom of the base 1, starts and drives the first gear 23, which is opened in the middle of the top of the base 1, to rotate. Since the first gear 23 and the second gear 24 are arranged in a ring on the inner side of the rectangular groove 21, the first gear 23 rotates. All are bevel gears that mesh with each other. The power of the first gear 23 to rotate is transmitted through meshing, causing multiple second gears 24 to rotate synchronously. The inner end of the adjustment mechanism 3 is connected to the outer side of the second gear 24. When the second gear 24 rotates, it drives the threaded rod 32 fixed to it to rotate in the groove 31 opened on the top of the base 1. Since the slider 33 is threadedly connected to the threaded rod 32 and can only slide along the groove due to the restriction of the groove 31, the rotation of the threaded rod 32 is converted into the linear movement of the slider 33 in the groove 31. The sliders 33 of multiple adjustment mechanisms 3 move synchronously, driving the extrusion module 4 fixed on the top of the slider 33 to adjust its position radially along the base 1. Thus, the position of the extrusion module 4 is adjusted according to the size of the packaging box, preparing for the subsequent bubble pressing operation of the packaging box through the elastic extrusion body 44 inside the extrusion module 4.

[0016] refer to Figure 1 , Figures 3-4The adjusting mechanism 3 includes a slide groove 31, which is arranged in a ring at equal intervals on the top of the base 1. A threaded rod 32 is rotatably connected inside the slide groove 31, and a slider 33 is threadedly connected to the outer surface of the threaded rod 32. The slider 33 is slidably connected inside the slide groove 31, and the top of the slider 33 is connected to the bottom of the extrusion module 4. The inner end of the threaded rod 32 is fixedly connected to the outer side of the second gear 24. Mounting brackets 5 are fixedly installed at the four corners of the outer side of the base 1. Mounting holes 6 are provided on the inner side of the mounting brackets 5. The mounting holes 6 are countersunk holes. When the bubble-pressing mold for the anti-bulking box is working, the drive motor 22 starts and drives the first gear 23 to rotate. Through the meshing transmission of the bevel gear, the second gear 24 rotates synchronously. The threaded rod 32, which is fixedly connected to the outer side of the second gear 24, moves with the first gear 23. The screw rod 32 rotates within the annular grooves 31 at the top of the base 1. Since the outer surface of the screw rod 32 is threadedly connected to the slider 33, and the slider 33 is restricted by the inner wall of the groove 31, it can only slide along the direction of the groove 31. Therefore, the rotation of the screw rod 32 is converted into the linear displacement of the slider 33 within the groove 31. Multiple sliders 33 move synchronously, driving the extrusion module 4 fixed on its top to adjust its position radially along the base 1 to accommodate packaging boxes of different sizes. At the same time, the mounting brackets 5 and countersunk holes at the four corners on the outer side of the base 1 facilitate the secure installation of the mold on the production equipment or workbench by bolts. The countersunk holes allow the bolt heads to sink into the holes, ensuring a flat mounting surface and avoiding interference with other components. This ensures that the mold remains stable during the movement of the extrusion module 4 driven by the adjustment mechanism 3 and the bubble pressing operation.

[0017] refer to Figure 1 , Figures 3-5The extrusion module 4 includes a vertical adjustment group 41, which is fixedly connected to the top of the slider 33. A horizontal adjustment group 42 is fixedly installed on the top of the vertical adjustment group 41. A template 43 is fixedly installed on the inner end of the horizontal adjustment group 42. An elastic extrusion body 44 is fixedly connected to the inner side of the template 43. The vertical adjustment group 41 includes a vertical rail 411, which is fixedly installed on the top of the slider 33. A vertical slide plate 412 is slidably connected inside the vertical rail 411. The horizontal adjustment group 42 is fixedly connected to the top of the vertical slide plate 412. A first screw 413 is threadedly connected to one side of the upper end of the vertical rail 411. The end of the first screw 413 passes through the vertical rail 411. A first limiting hole 414 is provided at equal intervals on one side of the base 2. The end of the first screw 413 is inserted into the first limiting hole 414. When the bubble-pressing mold of the anti-bulk box is working, the drive motor 22 starts and drives the first gear 23 to rotate. Through the meshing transmission of the bevel gear, the second gear 24 rotates synchronously. The threaded rod 32, which is fixedly connected to the outside of the second gear 24, rotates in the annularly arranged sliding groove 31 on the top of the base 1. Since the outer surface of the threaded rod 32 is threadedly connected to the slider 33, and the slider 33 is restricted by the inner wall of the sliding groove 31, it can only slide along the direction of the sliding groove 31. Therefore, the rotation of the threaded rod 32 is converted into the linear displacement of the slider 33 in the sliding groove 31, and multiple sliders 33 move synchronously. The extrusion module 4, fixed to its top, is radially adjusted along the base 1 to accommodate packaging boxes of different sizes. Simultaneously, the mounting brackets 5 and countersunk holes at the four corners of the base 1 facilitate the secure installation of the mold on production equipment or a workbench using bolts. The countersunk holes allow the bolt heads to sink into the holes, ensuring a flat mounting surface and preventing interference with other components. This ensures the mold remains stable during the movement of the extrusion module 4 driven by the adjustment mechanism 3 and the bubble pressing operation, providing a fundamental guarantee for precise adjustment and reliable bubble pressing. When the height of the elastic extrusion body 44 needs adjustment, the operator loosens the first screw 413 threaded on one side of the vertical rail 411, causing its end to disengage from the side of the vertical slide plate 412. The first limiting hole 414 is opened, at which point the vertical slide plate 412 is unlocked and can slide freely inside the vertical rail 411. After the operator adjusts the vertical slide plate 412 to the target position according to the height of the packaging box, the first screw 413 is tightened again so that its end is inserted into the corresponding first limiting hole 414. The friction generated by the threaded engagement between the screw and the vertical rail 411 is used to fix the vertical slide plate 412 on the vertical rail 411, thereby achieving precise positioning of the height of the elastic extrusion body 44. This structural design allows the mold to adapt to packaging boxes of different heights and specifications. Adjustment can be completed through simple manual operation without complicated tools, which significantly improves the versatility and ease of operation of the mold.

[0018] refer to Figure 5The lateral adjustment assembly 42 includes a horizontal rail 421, which is fixedly installed on the top of the vertical slide plate 412. A horizontal slide plate 422 is slidably connected inside the horizontal rail 421. The inner end of the horizontal slide plate 422 is fixedly connected to the outer side of the template 43. A second screw 423 is threadedly connected to one side of the inner end of the horizontal rail 421. Second limiting holes 424 are equally spaced on one side of the horizontal slide plate 422. The end of the second screw 423 is inserted into the second limiting hole 424. Both the first screw 413 and the second screw 423 are hand-tightened screws. The cross-sectional shape of the internal cavity of the horizontal rail 421 and the guide rail is convex. The cross-sectional shape of the vertical slide plate 412 and the horizontal slide plate 422 is also convex. During use, when the lateral adjustment assembly 42 is working, if it is necessary to adjust the lateral distance between the template 43 and the packaging box, the operator manually loosens the hand-tightened second screw 423 on one side of the inner end of the horizontal rail 421, causing its end to exit from the side of the horizontal slide plate 422. Withdrawal from the second limiting hole 424 allows the transverse sliding plate 422 to be released from its restriction and slide freely inside the transverse rail 421. Since both the internal cavity of the transverse rail 421 and the cross-section of the transverse sliding plate 422 are convex, this structural design restricts the transverse sliding plate 422 to slide horizontally along the transverse rail 421, preventing it from shifting or coming off during sliding. According to the size of the packaging box, the operator slides the transverse sliding plate 422 along the transverse rail 421 to a suitable position and then tightens the second screw 423, causing its end to re-insert into the corresponding second limiting hole 424. The tightening force generated by the threaded engagement between the screw and the transverse rail 421 securely fixes the transverse sliding plate 422 to the transverse rail 421, thereby achieving precise horizontal positioning of the template 43. Through this adjustment process, the elastic extrusion body 44 inside the template 43 can accurately fit the side of the packaging box, ensuring uniform pressure application during the bubble pressing operation, effectively preventing the box edge from expanding outward, and also meeting the transverse pressing requirements of packaging boxes of different sizes.

[0019] Operating Principle and Advantages: During the application of this anti-bulging bubble mold, the overall power output is provided by the drive device 2. The drive device 2 can be electrically connected to the production workshop via wires. Simultaneously, an encoder can be installed on the drive motor 22. The encoder, in conjunction with the factory workshop PLC controller, enables intelligent control. The aforementioned control techniques are conventional existing technologies and will not be elaborated upon here. In specific use, the drive motor 22 is fixedly installed in the middle of the bottom of the base 1. When the drive motor 22 starts, it drives the first gear 23 at the bottom of the rectangular groove 21 to rotate. Since the first gear 23 and the second gear 24 are both bevel gears and mesh with each other, the power angle can be changed. The rotation of the first gear 23 causes multiple second gears 24 arranged in a ring on the inner side of the rectangular groove 21 to rotate synchronously. At this time, the adjustment mechanism 3 is connected to the second gear 24, and the inner end of the threaded rod 32 is fixed to the outer side of the second gear 24. When the second gear 24 rotates, it drives the threaded rod 32 to rotate in the slide groove 31. Because the slider 33 is threadedly connected to the threaded rod 32, and the slider 33 is restricted by the slide groove 31 to slide only in the direction of the slide groove 31, the rotation of the threaded rod 32 is converted into linear movement of the slider 33 in the slide groove 31. The sliders 33 of multiple adjustment mechanisms 3 move synchronously, so that the extrusion module 4 fixed on the top of the slider 33 can be adjusted radially along the base 1 to adapt to the outer dimensions of packaging boxes of different sizes. The extrusion module 4 includes a vertical adjustment mechanism. In the vertical adjustment group 41, the vertical rail 411 is fixed to the top of the slider 33, and the vertical slide plate 412 can slide up and down within the vertical rail 411. When it is necessary to adjust the height of the extrusion module 4, the first screw 413 is loosened so that its end exits from the first limiting hole 414 of the vertical slide plate 412. At this time, the vertical slide plate 412 can slide freely within the vertical rail 411. After adjusting to a suitable height, the end of the first screw 413 is inserted into the corresponding first limiting hole 414, and the first screw 413 is tightened to fix the height position of the vertical slide plate 412. At the same time, in the horizontal adjustment group 42, the horizontal rail 421 is fixed to the top of the vertical slide plate 412, and the horizontal slide plate 422 can slide horizontally within the horizontal rail 421. When it is necessary to adjust the template 4, the vertical slide plate 412 can slide up and down within the horizontal rail 421. When adjusting the lateral distance from the packaging box, loosen the second screw 423 so that its end exits from the second limiting hole 424 of the lateral slide plate 422. The lateral slide plate 422 slides within the horizontal rail 421. After adjustment, insert the end of the second screw 423 into the corresponding second limiting hole 424 and tighten the second screw 423 to fix the lateral position of the template 43. It can flexibly adjust the spacing and height between the four templates 43. When the template 43 is not suitable, the first screw 413 and the second screw 423 can be twisted. At this time, the vertical slide plate 412 and the lateral slide plate 422 can be pulled out from the inside of the vertical rail 411 and the horizontal rail 421, which is convenient for flexibly replacing different templates 43 according to specific production and processing needs. Its overall adaptability can be further improved. During the bubble pressing operation, the elastic extrusion body 44 inside the template 43 is attached to the outside of the packaging box through the above adjustment. The drive motor 22 drives the extrusion module 4 to perform extrusion around the packaging box. The elastic extrusion body 44 deforms under pressure, and the pressure is evenly applied to the surface of the packaging box, especially the edge of the box, which effectively prevents the edge of the box from expanding outward, while ensuring that the bonding parts of the packaging box face paper and corrugated paper are firmly bonded under pressure. Compared to existing technologies that use multiple cylinders for propulsion, this technical solution uses a single drive motor 22 in conjunction with a gear transmission structure. The bevel gear meshes to drive multiple second gears 24 to rotate synchronously, thereby achieving synchronous drive of multiple adjustment mechanisms 3. This transmission method reduces the number of power components, lowers the purchase cost of the equipment, simplifies the transmission system, and reduces potential failure points caused by multiple power components. Subsequent maintenance and repair only require attention to a single drive motor 22 and gear set, significantly reducing maintenance difficulty and cost. The adjustment mechanism 3 allows the extrusion module 4 to be adjusted radially along the base 1, and can be flexibly adjusted according to the outer dimensions of different sized packaging boxes. The vertical adjustment group 41 and the horizontal adjustment group 42 further enable the extrusion module 4 to be finely adjusted in the height and horizontal directions, adapting to the blistering requirements of packaging boxes of different specifications and shapes. Compared to the inflexible adjustment problem of existing technologies, this solution improves the versatility of the mold, reduces the frequency of mold replacement due to changes in packaging box size, improves production efficiency, and reduces production costs. Regarding structural installation and maintenance: The mounting brackets 5 and countersunk holes at the four corners of the base 1 facilitate stable installation of the mold with other equipment or workbenches. The installation process is simple and the structure is stable after installation. Meanwhile, the template 43 and the elastic extrusion body 44 in the extrusion module 4 are assisted in installation by the first screw 413 and the second screw 423. The first screw 413 and the second screw 423 are hand-tightening screws, which allows the template 43 to be directly disassembled and replaced when the elastic extrusion body 44 is worn or damaged, facilitating quick replacement and adaptation. After the extrusion module 4 is precisely adjusted by the vertical adjustment group 41 and the horizontal adjustment group 42, the elastic extrusion body 44 can fit tightly against the surface of the packaging box. During the bubble pressing process, the deformation of the elastic extrusion body 44 can evenly distribute the pressure to various parts of the packaging box, especially applying sufficient pressure to the box edge, effectively preventing the box edge from expanding outward. Compared with the existing technology, this solution improves the molding quality and aesthetics of the packaging box after bubble pressing through structural optimization and precise adjustment, ensuring the performance of the packaging box. During the application of this device, the parameters of its main components need to be determined based on actual production needs and packaging box specifications. The length of the horizontal rail 421 can be 200-500mm, and the length of the vertical slide plate 412 is 150-400mm. The dimensions of the convex-shaped cavity inside the horizontal rail 421 and guide rail can be 20-50mm wide and 15-35mm high. The convex-shaped cross-sectional dimensions of the matching vertical slide plate 412 and horizontal slide plate 422 are slightly smaller than the cavity dimensions. The diameter of the hand-tightening screw is selected to be 8-12mm, and the length is 30-80mm depending on the adjustment requirements. The diameter of the limiting hole is slightly larger than the screw diameter by 0.5-1mm. Regarding electronic components, the drive motor 22 can be a servo motor, model Panasonic MINASA6 series, and the encoder can be Omron E6B2-CWZ6C series, which is installed coaxially with the motor; the controller can be a Siemens S7-1200 series PLC, which is installed in a control cabinet close to the drive motor 22 for easy wiring and operation. The controller is connected to the drive motor 22 and the encoder through wires. The controller is powered by a 24V DC power supply, and the AC power is converted to a suitable voltage by the power module to power the drive motor 22, so as to realize the automated control and precise adjustment of the entire bubble pressing mold.

Claims

1. A press mold for preventing the flange of a box from expanding outward, characterized by: Includes a base (1), a drive device (2) is fixedly installed in the middle of the base (1), and an adjustment mechanism (3) is fixedly installed in a ring at equal intervals on the top of the base (1), and an extrusion module (4) is fixedly installed on the top of the adjustment mechanism (3). The driving device (2) includes a rectangular groove (21) and a drive motor (22). The drive motor (22) is fixedly installed in the middle of the bottom of the base (1). The rectangular groove (21) is opened in the middle of the top of the base (1). A first gear (23) is rotatably connected to the bottom of the rectangular groove (21). A second gear (24) is rotatably connected to the inner side of the rectangular groove (21) in a ring with equal spacing. The first gear (23) and the second gear (24) are meshed. The first gear (23) and the second gear (24) are both bevel gears. The inner end of the adjustment mechanism (3) is connected to the outer side of the second gear (24).

2. A press mould for preventing the flange of a box from expanding outward, according to claim 1, characterized in that: The adjustment mechanism (3) includes a slide groove (31), which is arranged in a ring at equal intervals on the top of the base (1). A threaded rod (32) is rotatably connected inside the slide groove (31), and a slider (33) is threadedly connected to the outer surface of the threaded rod (32). The slider (33) is slidably connected inside the slide groove (31), and the top of the slider (33) is connected to the bottom of the extrusion module (4). The inner end of the threaded rod (32) is fixedly connected to the outer side of the second gear (24).

3. The bubble-pressing mold for preventing box edge expansion according to claim 2, characterized in that: Mounting brackets (5) are fixedly installed at the four corners of the outer side of the base (1). Mounting holes (6) are opened on the inner side of the mounting brackets (5), and the mounting holes (6) are countersunk holes.

4. The bubble-pressing mold for preventing box edge expansion according to claim 1, characterized in that: The extrusion module (4) includes a vertical adjustment group (41), which is fixedly connected to the top of the slider (33). A horizontal adjustment group (42) is fixedly installed on the top of the vertical adjustment group (41). A template (43) is fixedly installed on the inner end of the horizontal adjustment group (42). An elastic extrusion body (44) is fixedly connected to the inner side of the template (43).

5. The bubble-pressing mold for preventing box edge expansion according to claim 4, characterized in that: The vertical adjustment assembly (41) includes a vertical rail (411), which is fixedly installed on the top of the slider (33). A vertical slide plate (412) is slidably connected inside the vertical rail (411). The horizontal adjustment assembly (42) is fixedly connected to the top of the vertical slide plate (412). A first screw (413) is threadedly connected to one side of the upper end of the vertical rail (411). The end of the first screw (413) passes through the vertical rail (411). A first limiting hole (414) is provided at equal intervals on one side of the vertical slide plate (412). The end of the first screw (413) is inserted into the inside of the first limiting hole (414).

6. The bubble-pressing mold for preventing box edge expansion according to claim 5, characterized in that: The horizontal adjustment assembly (42) includes a horizontal rail (421), which is fixedly installed on the top of the vertical slide plate (412). A horizontal slide plate (422) is slidably connected inside the horizontal rail (421). The inner end of the horizontal slide plate (422) is fixedly connected to the outer side of the template (43). A second screw (423) is threadedly connected to one side of the inner end of the horizontal rail (421). A second limiting hole (424) is provided at equal intervals on one side of the horizontal slide plate (422). The end of the second screw (423) is inserted into the inside of the second limiting hole (424).

7. The bubble-pressing mold for preventing box edge expansion according to claim 6, characterized in that: The first screw (413) and the second screw (423) are both hand-tightening screws. The cross-sectional shape of the internal cavity of the horizontal rail (421) and the internal cavity of the guide rail are both convex. The cross-sectional shape of the vertical slide plate (412) and the horizontal slide plate (422) are also convex.

Images