A patch press bubble forming apparatus for a carton

Abstract

The application discloses a patch bubble pressing and forming device for a packaging box, relates to the technical field of bubble pressing and forming devices, and comprises a first roller pressing mechanism, a vertical bubble pressing mechanism and a second roller pressing mechanism. The first roller pressing mechanism is arranged on one side of a device main body and located at the upper end of a pressing table. An elastic assembly is arranged in the pressing table. The lower end of the vertical bubble pressing mechanism is provided with a pressing plate. Vent holes are arranged at the center of the lower end of the pressing plate. The second roller pressing mechanism is installed on the upper end of the device main body and located on one side close to the vertical bubble pressing mechanism. When pressing the bubble, the pressing plate at the lower end of the vertical bubble pressing mechanism first presses the bubble, the first roller at the lower end of the first roller pressing mechanism then performs roller pressing along the X-axis direction of the device main body, the second roller at the lower end of the second roller pressing mechanism finally performs roller pressing along the Y-axis direction of the device main body.

Description

Technical Field

[0001] This invention relates to the field of foam molding equipment technology, specifically a patch foam molding equipment for packaging boxes. Background Technology

[0002] Surface mount technology (SMT) for packaging boxes is widely used in industries such as consumer electronics, cosmetics, gifts, and food. Its purpose is to firmly and smoothly adhere film-type patches with protective, decorative, or information-carrying functions to one or more surfaces of a packaging box. During the patch lamination process, residual air bubbles are a core defect affecting lamination quality. This is caused by the fact that if the contact between the patch and the packaging box surface is large-area simultaneous contact, the gas inside the contact interface does not have time to escape from the edges and is trapped between the patch and the substrate, forming visible bubbles or microscopic weak adhesion areas. This affects both the product's appearance and reduces the actual adhesion strength and lifespan of the patch.

[0003] In existing technologies, common patch lamination equipment mainly suffers from the following problems: The pressing motion mode is singular. Most existing equipment uses a flat, rigid pressure plate to press the patch synchronously as a whole. Although this method is simple in structure and efficient, because the pressing surface and the patch are in full contact at the same time, there is no directional escape channel for gas inside the contact interface, making it very easy to form closed air bubbles. Although some equipment uses a single roller for line pressing, because there is only one pressing process, the air bubble removal rate is still limited for patches with a large area.

[0004] The pressing structure design fails to actively guide the gas escape. The pressing head or roller of the existing equipment is usually made of homogeneous elastic material, and the pressing surface is smooth or has random texture. During pressing, the gas is only passively squeezed. There is no structural design that can actively guide the gas to flow in a directional manner, resulting in random gas escape paths. Some gas is resealed during the outward migration process.

[0005] In summary, existing patch foam molding equipment has failed to systematically solve the problem of residual air bubbles at three mutually coordinating levels: the design of the pressing motion sequence, the microstructure design of the pressing plate, and the auxiliary pressing design of the pressing stage. Therefore, a patch foam molding equipment that can efficiently eliminate air bubbles is needed. Summary of the Invention

[0006] The purpose of this invention is to provide a patch blister molding equipment for packaging boxes, so as to solve the problem of the impact of air bubbles on the overall blister molding efficiency during the patch blister molding process.

[0007] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a patch blister molding equipment for packaging boxes, including a first roller pressing mechanism, a vertical blister pressing mechanism and a second roller pressing mechanism. The first roller pressing mechanism is located on one side of the main body of the device at the upper end of the pressing table. An elastic component is provided inside the pressing table. A pressure plate is provided at the lower end of the vertical blister pressing mechanism. A ventilation hole is provided at the center of the lower end of the pressure plate. The second roller pressing mechanism is installed on the upper end of the main body of the device near the vertical blister pressing mechanism. During bubble pressing: The pressure plate at the lower end of the vertical bubble pressing mechanism first presses the bubbles. The ventilation holes and air guide grooves at the lower end of the pressure plate direct the air from the blower under the pressure of the pressure plate, causing the bubbles to move outwards along the air guide grooves. After the pressure plate completes the bubble pressing, a pressing edge the size of the pressure plate is formed. Subsequently, the first roller at the lower end of the first roller pressing mechanism, driven by the first electric push rod and the first linear module, rolls along the X-axis of the main body of the device to remove the pressing edge left by the pressure plate and performs secondary bubble pressing on the bubble pressing area. Finally, the second roller at the lower end of the second roller pressing mechanism, driven by the second electric push rod and the second linear module... Rolling is performed on both sides along the Y-axis of the main body of the device, pressing the edge area of ​​the first roller and the remaining area of ​​the pressing table to remove bubbles. Instead of a single large-area pressing plate, a three-step coordinated zoned pressing method of vertical pressing, longitudinal rolling, and transverse rolling is used to press bubbles from different directions, improving the efficiency of pressing. In addition, the elastic component inside the pressing table has a stiffness that gradually decreases along the X-axis of the main body of the device, so that the pressing table is slightly tilted along the X-axis of the main body of the device during the pressing process, which facilitates the movement of bubbles along the air guide micro-grooves or the rolling direction, which is beneficial to the removal of bubbles.

[0008] Preferably, the vertical bubble-pressing mechanism is located at the upper end of the main body of the device, with its lower end pressure plate opposite to the pressure table. The lower end surface of the pressure plate is provided with air-guiding micro-grooves, and there are several air-guiding micro-grooves, which are distributed in all directions on the lower end surface of the pressure plate. In this embodiment, the cross-section of the air-guiding micro-grooves is rectangular, and the air-guiding micro-grooves are arranged radially with the ventilation holes as the center, and are interconnected to form a mesh channel. All air-guiding micro-grooves are connected to the ventilation holes, which facilitates the movement of bubbles in all directions under the pressure of the pressure plate and the action of wind. Hot air from the blower is delivered to the air-guiding micro-grooves through the ventilation holes. When the pressure plate presses the bubbles, the air-guiding micro-grooves can break up larger bubbles on the one hand, and on the other hand, they can serve as channels for the movement of bubbles, facilitating the discharge of bubbles.

[0009] Preferably, a pneumatic cylinder is provided at the upper end of the vertical bubble pressing mechanism. The vertical bubble pressing mechanism is located on the top crossbeam of the main body of the device. Its core components include a pneumatic cylinder, a pressure plate, ventilation holes, and air guide microchannels. The pressure plate is coaxially provided at the output end of the pneumatic cylinder. When bubble pressing is required, the pneumatic cylinder operates, and its output end drives the pressure plate to move down, pressing the packaging box patch on the pressure table.

[0010] Preferably, the first roller pressing mechanism is provided with a longitudinal support along the Y-axis direction of the main body of the device. The two ends of the longitudinal support are connected to the first linear module. A first electric push rod is provided in the middle of the longitudinal support. The output end of the first electric push rod is provided with a first roller. The main body of the device is equipped with a guide mechanism and a transmission mechanism on both sides in the X-axis direction, which are not shown in the figure. The first linear module is provided at one end of the X-axis transmission mechanism. Its output shaft is connected to the transmission mechanism and is used to drive the entire first roller pressing mechanism to reciprocate along the X-axis direction of the main body of the device. The first electric push rod is vertically installed in the middle of the longitudinal support. The output end of the first electric push rod faces downward and is equipped with a first roller through a rotary joint and a bearing seat. The first roller extends axially along the Y-axis direction. The length of the first roller is greater than the width of the pressure plate. After the pressure plate finishes pressing the bubble and rises and retracts, the first electric push rod is activated, and its output end extends downward, causing the first roller to descend and lightly press the X-axis edge of the patch on the pressure plate. Then, the first linear module drives the longitudinal support and the first roller as a whole to smoothly roll along the X-axis direction from one side to the other, removing the pressing edge left by the pressure plate and performing secondary pressing on the bubble-pressing area of ​​the pressure plate.

[0011] Preferably, the elastic components are distributed throughout the interior of the pressing table, and the elastic stiffness of the elastic components gradually decreases along the X-axis direction of the main body of the device, while the elastic stiffness of the elastic components is the same along the Y-axis direction of the main body of the device. This allows the pressing table to tilt slightly along the X-axis direction of the main body of the device during the pressing and rolling process, so that the bubbles can be moved along the air guide micro-groove or the rolling direction, which is beneficial for the removal of bubbles.

[0012] Preferably, there are two second roller pressing mechanisms, which are arranged on both sides of the vertical bubble pressing mechanism along the Y-axis direction of the main body of the device. When the first roller pressing is completed, the second roller pressing mechanism rolls to both sides along the Y-axis direction of the main body of the device to press the edge area of ​​the first roller pressing and the remaining area of ​​the pressing table.

[0013] Preferably, the second roller pressing mechanism is provided with a horizontal support along the X-axis of the main body of the device. Both ends of the horizontal support are connected to the second linear module. A second electric push rod is located in the middle of the horizontal support, and the output end of the second electric push rod is equipped with a second roller. The main body of the device is also provided with a guide mechanism and a transmission mechanism in the Y-axis direction. The second linear module is installed at one end of the support in the Y-axis direction, driving the horizontal support to reciprocate along the Y-axis. A second electric push rod is installed vertically in the middle of the horizontal support, and the output end of the second electric push rod is also connected to the second roller via a rotary joint and a bearing seat. The axial direction of the second roller extends along the X-axis of the main body of the device, and the length of the second roller is adapted to the length of the pressing platform in the X-axis direction. When the first roller finishes pressing and rises to its reset position, the two second electric push rods move synchronously, their output ends moving downwards, so that their respective second rollers press against the two sides of the pressing area of ​​the first roller, i.e., the areas on the pressing platform located on both sides of the area covered by the first roller that were not pressed or were not sufficiently pressed. Subsequently, the second linear module drives the second roller to roll from the center to both sides along the Y-axis direction of the main body of the device. This makes the two rolling directions perpendicular to each other, achieving partitioned coverage of the entire planar area of ​​the patch in both the X and Y axes, and completing uniform pressure on the entire pressing area without any blind spots.

[0014] Preferably, a blower is installed at the upper end of the main body of the device near the pneumatic cylinder, with a built-in heating wire and temperature sensor (not shown in the figure). This facilitates the blower to generate hot air. The blower is connected to the pressure plate through a ventilation pipe. The hot air generated by the blower is delivered to the air guide micro-groove through the ventilation holes via the ventilation pipe. During the bubble pressing process of the pressure plate, on the one hand, the air can drive the bubbles to the outside of the pressure plate, and on the other hand, for adhesives with high temperature requirements, the hot air can prevent the adhesive in the patch from drying out, which would affect the overall bubble pressing efficiency.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. High bubble pressing efficiency and no dead corners: By decomposing the bubble pressing process into three consecutive steps of "vertical pressure plate pre-pressing + bidirectional roller pressing", the bubble pressing is carried out in sections and directions along the X-axis and Y-axis respectively, eliminating the edge bubbles and pressure dead corners that are easy to be generated by traditional single bubble pressing or single-direction roller pressing, and realizing full coverage and high-efficiency bubble pressing of the patch surface.

[0016] 2. Thorough air bubble removal and excellent bonding quality: Micro-grooves in all directions are arranged on the lower end face of the pressure plate, and hot air is introduced through ventilation holes. Under the pressure of the pressure plate, the hot air not only softens the adhesive and prevents premature curing, but also drives air bubbles to move directionally along the micro-grooves and be expelled. Simultaneously, the stiffness of the internal elastic components of the pressure table gradually decreases along the X-axis, causing a slight tilt of the pressure table, further guiding the air bubbles along the roller pressing direction, significantly improving the air bubble removal rate and the flatness of the patch bonding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 This is an overall side view of the device of the present invention; Figure 3 This is a schematic diagram of the structure of the second roller pressing mechanism of the present invention; Figure 4 This is a schematic diagram of the pressure plate structure of the present invention; Figure 5 This is a schematic diagram of the bottom structure of the pressure plate of the present invention; Figure 6 This is a cross-sectional view of the pressure plate AA of the present invention; Figure 7 This is a schematic diagram of the pressure table of the present invention.

[0018] In the diagram: 1. Main body of the device; 2. First roller pressing mechanism; 21. First linear module; 22. First electric push rod; 23. First roller; 24. Longitudinal support; 3. Vertical bubble pressing mechanism; 31. Press plate; 311. Ventilation hole; 312. Air guide micro-channel; 32. Pneumatic cylinder; 4. Second roller pressing mechanism; 41. Second linear module; 42. Second electric push rod; 43. Second roller; 44. Horizontal support; 5. Pressing table; 51. Elastic component; 6. Blower. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example: Figures 1-7 As shown, the present invention provides a patch blister molding equipment for packaging boxes, including a first roller pressing mechanism 2, a vertical blister pressing mechanism 3, and a second roller pressing mechanism 4. The first roller pressing mechanism 2 is disposed on one side of the main body 1 at the upper end of the pressing table 5. An elastic component 51 is disposed inside the pressing table 5. A pressure plate 31 is disposed at the lower end of the vertical blister pressing mechanism 3. A ventilation hole 311 is disposed at the center of the lower end of the pressure plate 31. The second roller pressing mechanism 4 is installed on the upper end of the main body 1 near the vertical blister pressing mechanism 3. During bubble pressing: The pressure plate 31 at the lower end of the vertical bubble pressing mechanism 3 first presses the bubble. The ventilation holes 311 and air guide grooves 312 at the lower end of the pressure plate 31 allow the air from the blower 6 to move the bubbles outward along the air guide grooves 312 under the pressure of the pressure plate 31. After the pressure plate 31 presses the bubble, it forms a pressing edge the size of the pressure plate 31. Then, the first roller 23 at the lower end of the first roller pressing mechanism 2, driven by the first electric push rod 22 and the first linear module 21, rolls along the X-axis of the main body 1 to remove the pressing edge left by the pressure plate 31 and perform secondary bubble pressing on the bubble pressing area of ​​the pressure plate 31. Finally, the second roller 43 at the lower end of the second roller pressing mechanism 4, driven by the second electric push rod 42, rolls along the X-axis of the main body 1 to remove the pressing edge left by the pressure plate 31 and perform secondary bubble pressing on the bubble pressing area of ​​the pressure plate 31. Driven by the second linear module 41, the device body 1 is rolled to both sides along the Y-axis direction, pressing the edge area of ​​the first roller 23 and the remaining area of ​​the pressing table 5 to compress bubbles. Instead of pressing the entire device body with a single large-area pressing plate 31, the device body 5 is changed to a three-step coordinated partitioned bubble pressing method of vertical bubble pressing, longitudinal rolling, and transverse rolling, which compresses bubbles from different directions to improve the efficiency of bubble pressing. In addition, the elastic component 51 inside the pressing table 5 has a stiffness that gradually decreases along the X-axis direction of the device body 1, so that the pressing table 5 is slightly tilted along the X-axis direction of the device body 1 during the bubble pressing process, which facilitates the movement of bubbles along the air guide micro-groove 312 or the rolling direction, which is beneficial to the removal of bubbles.

[0021] Preferably, the vertical bubble-pressing mechanism 3 is located at the upper end of the main body 1 of the device, with its lower end pressure plate 31 facing the pressure table 5. The lower end surface of the pressure plate 31 is provided with air-guiding micro-grooves 312. There are several air-guiding micro-grooves 312, which are distributed in all directions on the lower end surface of the pressure plate 31. In this embodiment, the cross-section of the air-guiding micro-grooves 312 is rectangular. The air-guiding micro-grooves 312 are arranged radially with the ventilation hole 311 as the center, and are interconnected to form a mesh channel. All air-guiding micro-grooves 312 are connected to the ventilation hole 311. This facilitates the movement of bubbles in all directions under the pressure of the pressure plate 31 and the action of wind. Hot air from the blower 6 is delivered to the air-guiding micro-grooves 312 through the ventilation hole 311. When the pressure plate 31 presses the bubbles, the air-guiding micro-grooves 312 can break up larger bubbles on the one hand, and on the other hand, can serve as a channel for the movement of bubbles, facilitating the discharge of bubbles.

[0022] Preferably, a pneumatic cylinder 32 is provided at the upper end of the vertical bubble pressing mechanism 3. The vertical bubble pressing mechanism 3 is set on the top crossbeam of the main body 1 of the device. Its core components include a pneumatic cylinder 32, a pressure plate 31, a ventilation hole 311, and an air guide microchannel 312. The pressure plate 31 is coaxially provided at the output end of the pneumatic cylinder 32. When bubble pressing is required, the pneumatic cylinder 32 operates, and its output end drives the pressure plate 31 to move down to press the packaging box patch on the pressing table 5.

[0023] Preferably, the first roller pressing mechanism 2 is provided with a longitudinal support 24 along the Y-axis direction of the device body 1. The two ends of the longitudinal support 24 are connected to the first linear module 21. A first electric push rod 22 is provided in the middle of the longitudinal support 24. A first roller 23 is provided at the output end of the first electric push rod 22. The device body 1 is equipped with a guide mechanism and a transmission mechanism on both sides in the X-axis direction, which are not shown in the figure. The first linear module 21 is provided at one end of the X-axis transmission mechanism. Its output shaft is connected to the transmission mechanism and is used to drive the entire first roller pressing mechanism 2 to reciprocate along the X-axis direction of the device body 1. The first electric push rod 22 is vertically installed in the middle part of the longitudinal support 24. The output end of the first electric push rod 22 faces downward and is equipped with the first roller 23 through a rotary joint and a bearing seat. The first roller 23 extends axially along the Y-axis direction. The length of the first roller 23 is greater than the width of the pressure plate 31. After the pressure plate 31 finishes pressing the bubble and rises and retracts, the first electric push rod 22 is activated, and its output end extends downward, causing the first roller 23 to descend and lightly press on the starting position of the X-axis edge of the patch on the pressure table 5. Then, the first linear module 21 drives the longitudinal support 24 and the first roller 23 as a whole to smoothly roll along the X-axis direction from one side to the other, removing the pressing edge left by the pressure plate 31 and performing secondary pressing on the bubble pressing area of ​​the pressure plate 31.

[0024] Preferably, the elastic components 51 cover the entire interior of the pressure table 5. In this embodiment, the elastic components 51 are spring groups, and the elastic stiffness of the elastic components 51 gradually decreases along the X-axis direction of the device body 1. The elastic stiffness of the elastic components 51 is the same along the Y-axis direction of the device body 1. This makes it easier for the pressure table 5 to tilt slightly along the X-axis direction of the device body 1 during the pressing of bubbles by the pressure plate 31 and the rolling process, so that the bubbles can be moved along the air guide micro-groove 312 or the rolling direction, which is beneficial to the removal of bubbles.

[0025] Preferably, there are two second roller pressing mechanisms 4, which are arranged on both sides of the vertical bubble pressing mechanism 3 along the Y-axis direction of the main body 1. When the first roller 23 finishes rolling, the second roller pressing mechanism 4 rolls to both sides along the Y-axis direction of the main body 1 to press the edge area of ​​the first roller 23 and the remaining area of ​​the pressing table 5.

[0026] Preferably, the second roller pressing mechanism 4 is provided with a horizontal support 44 along the X-axis direction of the main body 1. Both ends of the horizontal support 44 are connected to the second linear module 41. A second electric push rod 42 is provided in the middle of the horizontal support 44, and a second roller 43 is provided at the output end of the second electric push rod 42. The main body 1 is also provided with a guide mechanism and a transmission mechanism in the Y-axis direction. The second linear module 41 is installed at one end of the support in the Y-axis direction, driving the horizontal support 44 to reciprocate along the Y-axis direction. The second electric push rod 42 is installed vertically in the middle of the horizontal support 44, and the output end of the second electric push rod 42 is also connected to the second roller 43 via a rotary joint and a bearing seat. The axial direction of the second roller 43 extends along the X-axis direction of the main body 1, and the length of the second roller 43 is adapted to the X-axis length of the pressing table 5. After the first roller 23 finishes rolling and rises to its reset position, the two second electric push rods 42 move synchronously, their output ends moving downwards so that their respective second rollers 43 press against the two sides of the rolling area of ​​the first roller 23, that is, the areas on the pressure table 5 located on both sides of the area covered by the first roller 23 that were not pressed or were not sufficiently pressed. Subsequently, the second linear module 41 drives the second rollers 43 to roll from the middle to both sides along the Y-axis direction of the main body 1 of the device. This makes the two rolling directions perpendicular to each other, achieving partitioned coverage of the entire planar area of ​​the patch in both the X-axis and Y-axis directions, and completing uniform pressure on the entire pressing area without any blind spots.

[0027] Preferably, a blower 6 is provided at the upper end of the main body 1 near the pneumatic cylinder 32, with a built-in heating wire and temperature sensor (not shown in the figure). This facilitates the blower 6 to generate hot air. The blower 6 is connected to the pressure plate 31 through a ventilation pipe. The hot air generated by the blower 6 is delivered to the air guide micro-groove 312 through the ventilation hole 311 via the ventilation pipe. During the bubble pressing process of the pressure plate 31, on the one hand, the air can drive the bubbles to the outside of the pressure plate 31, and on the other hand, for adhesives with high temperature requirements, the hot air can prevent the adhesive in the patch from drying out and affecting the overall bubble pressing efficiency.

[0028] The working principle of this invention is as follows: When performing bubble pressing, firstly, the packaging box patch, coated with glue and with a face paper attached, is placed on the pressing table 5 and its position is adjusted to correspond with the pressing plate 31. The control system is activated, and the blower 6 and the vertical bubble pressing mechanism 3 begin to work. The pneumatic cylinder 32 drives the pressing plate 31 to press down smoothly until the patch is pressed tightly onto the surface of the pressing table 5 at the set pressure. During the pressing process of the pressing plate 31, the hot air generated by the blower 6 enters each air guide micro-groove 312 through the ventilation holes 311, forming an airflow layer between the patch surface and the bottom surface of the pressing plate 31. When the pressing plate 31 presses the bubble, the air guide micro-groove 312 can break up larger bubbles on the one hand, and on the other hand, it can serve as a channel for bubble movement, facilitating the discharge of bubbles. After the pressing plate 31 completes the bubble pressing, the first roller pressing mechanism 2 then intervenes. The first electric push rod 22 extends when energized, and the first roller 23 presses down to one edge of the patch along the X-axis. At this time, the first linear module 21 is activated, driving the longitudinal support 24 and the first roller 23 to move at a constant speed along the X-axis via the X-axis transmission mechanism. The first roller 23 flattens the edge marks in a linear contact manner, while simultaneously driving out the fine air bubbles remaining in the main pressing area along the rolling direction from the patch edge. During the rolling process, as the stiffness of the elastic component 51 under the pressure table 5 gradually decreases in the X-axis direction, the pressure table 5 will generate a small wave-shaped compliant deformation when the roller passes by. This deformation creates a slight slope on the patch surface along the rolling direction, which provides a gravitational component and mechanical path for the migration of air bubbles, further enhancing the efficiency of air bubble removal. After the first roller 23 completes its entire X-axis stroke, the first electric push rod 22 retracts, and the first roller 23 rises. At this time, the second linear module 41 is mounted on the bracket in the Y-axis direction of the device body 1. When the first roller 23 finishes rolling, the output end of the second electric push rod 42 moves down, so that the second roller 43 and the pressure table 5 are located on both sides of the edge of the first roller 23, which facilitates the pressing of bubbles in the edge area of ​​the first roller 23 and the remaining area of ​​the pressure table 5. The second linear module 41 drives the second roller 43 to roll along the Y-axis direction of the device body 1 to both sides. In addition, during the entire bubble pressing process, the structural characteristics of the elastic component 51, which has a gradually decreasing stiffness in the X-axis direction and a consistent stiffness in the Y-axis direction, allow the pressure table 5 to produce a controllable slight tilt regardless of whether it is subjected to vertical pressure or roller pressure moving along the X-axis. The tilt direction is consistent with the first rolling direction and the direction of exhaust from the air guide micro-groove 312, forming a mechanical guide that is extremely beneficial to the movement of bubbles. Meanwhile, the combination of the air guide micro-groove 312 and the ventilation hole 311 allows the degassing in the area of ​​the pressure plate 31 to not rely on simple mechanical extrusion, but to have active pneumatic delivery.This method, through the above-mentioned structural setup, changes the original method of pressing a single large-area pressure plate 31 as a whole into a three-step coordinated zoned pressing method of vertical pressing, longitudinal rolling, and transverse rolling. It gradually compacts and vents air from different directions and using different force forms. The introduction of a stiffness-gradient elastic component 51 and a micro-groove air passage to assist in air venting significantly improves the air bubble removal rate, eliminates edge marks, and effectively ensures the flatness and bonding strength of the finished product surface.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A patch blister molding machine for packaging boxes, comprising a first roller pressing mechanism (2), a vertical blister pressing mechanism (3), and a second roller pressing mechanism (4), characterized in that: The first roller pressing mechanism (2) is located on one side of the device body (1) at the upper end of the pressing table (5). The pressing table (5) is provided with an elastic component (51). The lower end of the vertical bubble pressing mechanism (3) is provided with a pressure plate (31). A ventilation hole (311) is provided at the center of the lower end of the pressure plate (31). The second roller pressing mechanism (4) is installed on the upper end of the device body (1) near the side of the vertical bubble pressing mechanism (3). During bubble pressing: the pressure plate (31) at the lower end of the vertical bubble pressing mechanism (3) first presses the bubble, the first roller (23) at the lower end of the first roller pressing mechanism (2) then rolls along the X-axis direction of the main body of the device (1), and the second roller (43) at the lower end of the second roller pressing mechanism (4) finally rolls along the Y-axis direction of the main body of the device (1).

2. The patch foam molding equipment for packaging boxes according to claim 1, characterized in that: The vertical pressure bubble mechanism (3) is located at the upper end of the main body (1) of the device. The lower end face of the pressure plate (31) is provided with an air guide micro-groove (312), which is connected to the ventilation hole (311).

3. The patch foam molding equipment for packaging boxes according to claim 2, characterized in that: The upper end of the vertical bubble pressing mechanism (3) is provided with a pneumatic cylinder (32), and the output end of the pneumatic cylinder (32) is provided with a pressure plate (31).

4. The patch foam molding equipment for packaging boxes according to claim 1, characterized in that: The first roller pressing mechanism (2) is provided with a longitudinal support (24) along the Y-axis direction of the main body (1) of the device. The two ends of the longitudinal support (24) are connected to the first linear module (21). A first electric push rod (22) is provided in the middle of the longitudinal support (24). A first roller (23) is provided at the output end of the first electric push rod (22).

5. The patch foam molding equipment for packaging boxes according to claim 1, characterized in that: The elastic stiffness of the elastic component (51) gradually decreases along the X-axis direction of the device body (1), while the elastic stiffness of the elastic component (51) remains the same along the Y-axis direction of the device body (1).

6. The patch foam molding equipment for packaging boxes according to claim 1, characterized in that: The second roller pressing mechanism (4) is provided in two parts, and is arranged on both sides of the vertical pressing mechanism (3) along the Y-axis direction of the main body (1) of the device.

7. The patch blister molding equipment for packaging boxes according to claim 6, characterized in that: The second roller pressing mechanism (4) is provided with a horizontal support (44) along the X-axis direction of the main body (1) of the device. The two ends of the horizontal support (44) are connected to the second linear module (41). A second electric push rod (42) is provided in the middle of the horizontal support (44). A second roller (43) is provided at the output end of the second electric push rod (42).

8. The patch foam molding equipment for packaging boxes according to claim 7, characterized in that: A blower (6) is provided on the upper end of the main body (1) of the device, near the side of the pneumatic cylinder (32), and the blower (6) is connected to the pressure plate (31) through a ventilation pipe.

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