Bagging device for printing vertical boards

By utilizing a multi-level positioning compensation mechanism involving displacement components and heat-sealing components in the bagging device for printed standees, the problem of film offset during heat-sealing of printed standees is solved, achieving high-precision sealing results and improving product quality.

CN224131489UActive Publication Date: 2026-04-17DONGGUAN DONGSANSHE CULTURAL & CREATIVE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN DONGSANSHE CULTURAL & CREATIVE TECH CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In the current production of printed standees, the hot-pressing packaging equipment lacks a dynamic positioning compensation mechanism, which leads to misalignment between the upper and lower films and the edges of the printed standee, resulting in incomplete sealing in some areas or exposure of the printed standee.

Method used

The bagging device using printed standees drives the substrate to be precisely pre-positioned through a displacement component. Combined with the geometric coupling design of the annular hot-pressing component and the positioning frame in the hot-press sealing component, multi-level positioning compensation is formed. By utilizing the hard limit of the positioning frame and the hot-pressing operation groove and the surface-to-surface contact of the annular hot-pressing component, the difference in film thermal shrinkage is reduced, and the precise alignment of the sealing film with the edge of the finished product is achieved.

Benefits of technology

It improves the alignment accuracy between the sealing film and the edge of the finished part, ensuring heat sealing strength while significantly reducing the problem of incomplete sealing and improving product yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bagging device for printing vertical cards, which relates to the technical field of printing processing and comprises a base station and a frame fixedly arranged on the base station, a feeding component is arranged on the base station, and a hot-press sealing component is arranged on the frame. The geometric coupling design of an annular hot-pressing piece and a positioning frame in the hot-pressing sealing assembly is combined, multi-stage positioning compensation is formed in the hot-pressing process, pre-limiting of an upper film and a lower film is conducted through a downward-pressing receding groove, and then the plane positioning precision is guaranteed through hard limiting of the positioning frame and a hot-pressing operation groove; and finally, the heat shrinkage difference of the film is reduced through face-to-face abutting of an annular hot-pressing piece and a positioning frame, the alignment precision of the sealing film and the edge of a finished product piece is controllable through a multi-stage dynamic positioning mechanism, and in cooperation with temperature closed-loop control of a heating piece, the problem of incomplete sealing caused by sealing film deviation is greatly solved while the heat sealing strength is guaranteed, and the product quality is improved. And the product yield is improved.
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Description

Technical Field

[0001] This utility model relates to the field of printing and processing technology, specifically to a bagging device for printing standees. Background Technology

[0002] Printed standees are a type of flat or three-dimensional display medium widely used in the fields of cultural and creative works, exhibitions, and signage. They are usually made of acrylic plastic substrates or other composite materials, and their surfaces are covered with graphic information through printing processes to achieve visual communication functions.

[0003] In the production process of printed standees, film sealing is a core step to ensure the quality of the finished product. It requires the upper and lower heat-sealing films to be melted and bonded together under a set temperature and pressure through a hot-pressing process to achieve a complete wrap and seal of the printed standee.

[0004] However, most existing thermo-pressing packaging equipment uses a single mechanical pressing method and lacks a dynamic positioning compensation mechanism for the substrate and the sealing film. In actual operation, due to factors such as differences in the thermal shrinkage rate of the film or deviations in the manual placement position, the upper and lower films are easily misaligned with the edges of the printed stand, resulting in problems such as incomplete sealing in local areas or exposure of the printed stand, which affects the packaging quality. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution for a bagging device for printed standees that can solve the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bagging device for printed standees includes a base and a frame fixed on the base. A feeding assembly is installed on the base, and a heat sealing assembly is installed on the frame.

[0008] The feeding assembly includes a feeding vertical plate assembly and a displacement assembly fixed on the base. The feeding vertical plate assembly includes a first feeding vertical plate and a second feeding vertical plate symmetrically fixed on the base. Feeding grooves are respectively opened on the opposite surfaces of the first feeding vertical plate and the second feeding vertical plate. A feeding support plate is slidably installed in the feeding groove. A feeding receiving groove is opened on the feeding support plate. A positioning frame is fixed in the feeding receiving groove. A downward pressure relief groove is formed between the positioning frame and the inner wall of the feeding receiving groove. The displacement assembly is fixed on the base to drive the feeding support plate to slide in the feeding receiving groove.

[0009] The hot-press sealing assembly includes a lifting power component fixed on a frame, a pressing mounting plate fixed on the working shaft of the lifting power component, a pressing component mounted on the lower end of the pressing mounting plate, a hot-pressing working groove opened on the inner bottom surface of the pressing component, a positioning frame aligned and fitted in the hot-pressing working groove, an annular hot-pressing component abutting and fitting with the positioning frame mounted on the inner bottom surface of the hot-pressing working groove, the periphery of the lower end face of the pressing component aligned and inserted in the pressing clearance groove, and a heating component mounted on the pressing component for heating the annular hot-pressing component.

[0010] As a further embodiment of this utility model: a first mounting hole is provided on the pressing mounting plate, a first guide shaft is fixedly installed in the first mounting hole, a second mounting hole is provided on the upper end face of the pressing member, the lower end of the first guide shaft passes through the second mounting hole and is fixedly connected to the annular hot pressing member, a first elastic member is sleeved on the first guide shaft, the upper end of the first elastic member abuts against the lower end face of the pressing mounting plate, and the lower end of the first elastic member abuts against the upper end face of the pressing member.

[0011] As a further embodiment of this utility model: an outer frame is provided on the outer side of the pressing member, and a pressing mounting groove for accommodating the pressing member is provided on the upper end surface of the outer frame. Pressing mounting holes are provided at the four corners of the upper end surface of the outer frame. A second guide shaft is fixedly installed in the pressing mounting hole. An upper limit block is fixedly provided on the upper end of the second guide shaft. A second elastic member is sleeved on the second guide shaft. The upper end of the second elastic member abuts against the pressing mounting plate, and the lower end of the second elastic member abuts against the outer frame.

[0012] As a further embodiment of this utility model: a heating receiving groove is provided on the upper end face of the pressing member, and a heating insertion groove is provided on the annular hot pressing member, and the heating member passes through the heating receiving groove and is inserted into the heating insertion groove.

[0013] As a further embodiment of this utility model: the displacement assembly includes a displacement vertical plate fixed on the base, and a horizontally arranged cylinder is fixed on the displacement vertical plate. The working shaft of the cylinder is fixedly connected to the feeding bearing plate.

[0014] As a further embodiment of this utility model: the heating element includes a stainless steel shell and an electric heating wire disposed inside the stainless steel shell.

[0015] As a further embodiment of this utility model: the annular hot-pressed component includes a nickel-based alloy ring, the lower end face of which is coated with a nitride ceramic coating, and the positioning frame includes a fluorosilicone rubber ring.

[0016] As a further embodiment of this utility model: the pressing component includes a high-temperature silicone rubber component.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model bagging device achieves precise pre-positioning of the substrate under the drive of the displacement component. Combined with the geometric coupling design of the annular hot-pressing component and the positioning frame in the hot-press sealing component, multi-level positioning compensation is formed during the hot-pressing process. The upper and lower films are pre-limited by the downward pressure clearance groove. Secondly, the planar positioning accuracy is ensured by the hard limit of the positioning frame and the hot-pressing working groove. Finally, the surface-to-surface contact between the annular hot-pressing component and the positioning frame reduces the difference in film thermal shrinkage. Through the multi-level dynamic positioning mechanism, the alignment accuracy between the sealing film and the edge of the finished product is controllable. With the temperature closed-loop control of the heating component, the sealing strength is guaranteed while the sealing film offset problem caused by incomplete sealing is greatly reduced, thus improving the product yield. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural view of the present invention;

[0020] Figure 2 This is a front view of the present invention;

[0021] Figure 3 This is a three-dimensional structural view of the feeding component in this utility model;

[0022] Figure 4 This is a three-dimensional structural view of the hot-press sealing assembly in this utility model;

[0023] Figure 5 yes Figure 4 A partial view at point A in the middle;

[0024] Figure 6 This is another three-dimensional view of the hot-press sealing assembly in this utility model;

[0025] Figure 7 yes Figure 6 A partial view at point B in the middle;

[0026] Figure 8 This is a three-dimensional structural view of the lower pressure mounting plate and the lower pressure component in this utility model;

[0027] Figure 9 This is a top view of the pressure mounting plate and pressure component in this utility model;

[0028] Figure 10 yes Figure 9 A cross-sectional view along the CC direction;

[0029] The reference numerals and names in the figure are as follows:

[0030] Base-101, Frame-102, Feeding Assembly-103, Hot Press Sealing Assembly-104, Feeding Vertical Plate Assembly-105, Displacement Assembly-106, First Feeding Vertical Plate-107, Second Feeding Vertical Plate-108, Feeding Slide-109, Feeding Bearing Plate-110, Feeding Receiving Slot-111, Positioning Frame-112, Downward Pressure Clearance Slot-113, Lifting Power Component-114, Downward Pressure Mounting Plate-116, Downward Pressure Component-117, Hot Press Working Slot- 118, Annular hot pressing component - 119, Heating component - 120, First mounting hole - 121, First guide shaft component - 122, Second mounting hole - 123, First elastic component - 124, Outer frame - 125, Lower pressing mounting groove - 126, Lower pressing mounting hole - 127, Second guide shaft component - 128, Upper limit block - 129, Second elastic component - 130, Heating receiving groove - 131, Heating insertion groove - 132, Displacement plate - 133, Cylinder component - 134. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-10 A bagging device for printed standees includes a base 101 and a frame 102 fixed on the base 101. A feeding assembly 103 is installed on the base 101, and a heat sealing assembly 104 is installed on the frame 102.

[0033] The feeding assembly 103 includes a feeding vertical plate assembly 105 and a displacement assembly 106 fixed on the base 101. The feeding vertical plate assembly 105 includes a first feeding vertical plate 107 and a second feeding vertical plate 108 symmetrically fixed on the base 101. Feeding grooves 109 are respectively opened on the opposite surfaces of the first feeding vertical plate 107 and the second feeding vertical plate 108. A feeding support plate 110 is slidably installed in the feeding groove 109. A feeding receiving groove 111 is opened on the feeding support plate 110. A positioning frame 112 is fixed in the feeding receiving groove 111. A downward pressure relief groove 113 is formed between the positioning frame 112 and the inner wall of the feeding receiving groove 111. The displacement assembly 106 is fixed on the base 101 to drive the feeding support plate 110 to slide in the feeding receiving groove 111.

[0034] The hot-press sealing assembly 104 includes a lifting power component 114 fixed on the frame 102. A pressing mounting plate 116 is fixed on the working shaft of the lifting power component 114. A pressing component 117 is installed at the lower end of the pressing mounting plate 116. A hot-pressing working groove 118 is opened on the inner bottom surface of the pressing component 117. The positioning frame 112 is aligned and fitted in the hot-pressing working groove 118. An annular hot-pressing component 119 that abuts against the positioning frame 112 is installed on the inner bottom surface of the hot-pressing working groove 118. The periphery of the lower end face of the pressing component 117 is aligned and inserted in the pressing relief groove 113. A heating component 120 for heating the annular hot-pressing component 119 is installed on the pressing component 117.

[0035] In the process of using this bagging device, the lower film is first preset on the feeding support plate 110, and then the finished product with printed stand is placed in the positioning frame 112. After the finished product is installed in the positioning frame 112, the lower film under the finished product will adaptively drive the lower film around it to be recessed into the positioning frame 112 to accommodate the product. Then the upper film is covered on the finished product. Subsequently, the displacement component 106 drives the feeding support plate 110 to slide in the feeding accommodating groove 111, so that the finished product covered with the upper and lower films is moved to the hot pressing processing position.

[0036] During the hot pressing process, the annular hot pressing component 119 is first preheated by the heating element 120. The lifting power element 114 then drives the lower pressing mounting plate 116 and the lower pressing component 117 to adjust downwards. During this downward adjustment, the lower end face of the lower pressing component 117 first aligns and inserts into the lower pressing relief groove 113, causing the upper and lower films to be relatively pressed and limited within the groove. Simultaneously, the finished product is pressed and limited within the positioning frame 112. The upper film, lower film, and finished product are positioned relative to each other. Then, the lifting power component 114 drives the lower pressure mounting plate 116 and the lower pressure component 117 to continue moving downward, so that the preheated annular hot press component 119 abuts against the positioning frame 112, thereby hot-pressing and welding the upper film and lower film to form an annular sealing effect around the finished product. Then, the excess film material is removed through subsequent processing steps to obtain a fully sealed finished product, which can then be bagged and shipped.

[0037] The bidirectional hard limiting structure composed of the first and second feeding uprights 108, the feeding chute 109 and the servo drive system of the displacement component 106 are combined to make the feeding support plate 110 highly accurate in repeatability and ensure the initial positioning accuracy of the printed stand.

[0038] This utility model bagging device achieves precise pre-positioning of the substrate under the drive of the displacement component 106. Combined with the geometric coupling design of the annular hot-pressing component 119 and the positioning frame 112 in the hot-press sealing component 104, multi-level positioning compensation is formed during the hot-pressing process. The upper and lower films are pre-limited by the downward pressure clearance groove 113. Secondly, the planar positioning accuracy is ensured by the hard limit of the positioning frame 112 and the hot-pressing operation groove 118. Finally, the surface-to-surface contact between the annular hot-pressing component 119 and the positioning frame 112 reduces the difference in film thermal shrinkage. Through the multi-level dynamic positioning mechanism, the alignment accuracy between the sealing film and the edge of the finished product is controllable. With the temperature closed-loop control of the heating component 120, the sealing strength is guaranteed while the sealing film offset problem caused by incomplete sealing is greatly reduced, thus improving the product yield.

[0039] In this embodiment of the utility model, a first mounting hole 121 is provided on the pressing mounting plate 116, and a first guide shaft 122 is fixedly installed in the first mounting hole 121. A second mounting hole 123 is provided on the upper end face of the pressing member 117. The lower end of the first guide shaft 122 passes through the second mounting hole 123 and is fixedly connected to the annular hot pressing member 119. A first elastic member 124 is sleeved on the first guide shaft 122. The upper end of the first elastic member 124 abuts against the lower end face of the pressing mounting plate 116, and the lower end of the first elastic member 124 abuts against the upper end face of the pressing member 117.

[0040] like Figure 1 and 10 As shown, during the process of pressing the lower end face of the lower pressure member 117 into the relief groove 113, in order to avoid interference between the contact between the periphery of the lower end face of the lower pressure member 117 and the bottom surface of the lower pressure relief groove 113 and the contact fit between the positioning frame 112 and the annular hot press member 119, the lower pressure member 117 is designed to be elastically expandable and contractible.

[0041] After the lower end face of the pressing member 117 abuts against the bottom surface of the pressing relief groove 113, the upper and lower films are relatively limited. Then, driven by the lifting power member 114, the pressing mounting plate 116 continues to descend. At this time, the pressing member 117 elastically compresses the first elastic member 124. At the same time, the annular hot pressing member 119 fixed on the first guide shaft member 122 continues to move downward, so that the pressing member 117 has an upward short-distance displacement effect relative to the annular hot pressing member 119. This makes the abutment fit between the positioning frame 112 and the annular hot pressing member 119 tighter. At the same time, the pressing member 117 has an elastic abutment effect in the pressing relief groove 113, which makes the pressing effect of the upper and lower films better and the hot pressing fusion effect of the upper and lower films better.

[0042] In this embodiment of the utility model, an outer frame 125 is provided on the outer side of the pressing member 117. The upper end surface of the outer frame 125 is provided with a pressing mounting groove 126 for accommodating the pressing member 117. Pressing mounting holes 127 are provided at the four corners of the upper end surface of the outer frame 125. A second guide shaft 128 is fixedly installed in the pressing mounting holes 127. An upper limit block 129 is fixedly provided at the upper end of the second guide shaft 128. A second elastic member 130 is sleeved on the second guide shaft 128. The upper end of the second elastic member 130 abuts and cooperates with the pressing mounting plate 116, and the lower end of the second elastic member 130 abuts and cooperates with the outer frame 125.

[0043] like Figure 2 As shown, during the process of the pressing part 117 pressing down into the clearance groove 113, the outer frame 125 and the feeding support plate 110 elastically abut against each other, so that the upper and lower films located outside the feeding receiving groove 111 can also be limited over a wide range, thereby further enhancing the overall positioning effect of the upper film, lower film and finished product, making the overall hot pressing welding operation more stable, and avoiding the relative displacement of the upper and lower films during the hot pressing welding process due to the feeding vibration of the upper and lower films, which would affect the welding effect;

[0044] The outer frame 125 also provides a certain degree of protection, preventing workers' hands from directly contacting the periphery of the pressing part 117 and reducing work-related accidents during the pressing process.

[0045] In one embodiment, during automated processing, the upper and lower films are fed by a feeding device, and the finished products are placed by a robotic arm. The elastic contact between the outer frame 125 and the feeding support plate 110 makes the automated operation process more stable.

[0046] In this embodiment of the present invention, a heating receiving groove 131 is provided on the upper end face of the pressing member 117, and a heating insertion groove 132 is provided on the annular hot pressing member 119. The heating member 120 passes through the heating receiving groove 131 and is inserted into the heating insertion groove 132.

[0047] like Figure 2 and Figure 10 As shown, by inserting the heating element 120 through the heating receiving groove 131 into the heating insertion groove 132, the replacement of the heating element 120 becomes more convenient. Especially in the process of mass production, the heating element 120 is prone to burnout due to long-term continuous operation. At the same time, the heating element 120 can be replaced without stopping the machine. Simply remove the old heating element 120 from the top and then insert the new heating element 120 from the top, which improves the efficiency of continuous operation and meets the requirements of mass production.

[0048] In this embodiment of the present invention, the displacement component 106 includes a displacement vertical plate 133 fixed on the base 101, and a horizontally arranged cylinder component 134 is fixed on the displacement vertical plate 133. The working shaft of the cylinder component 134 is fixedly connected to the feeding bearing plate 110.

[0049] like Figure 1 and 3 As shown, the horizontally arranged cylinder 134 can conveniently drive the loading support plate 110 to move with high precision in the horizontal direction, thereby enabling the loading support plate 110 to move back and forth more effectively.

[0050] In this embodiment of the present invention, the heating element 120 includes a stainless steel shell and an electric heating wire disposed inside the stainless steel shell;

[0051] The heating element 120 includes a general-purpose stainless steel electric heating rod, which heats the stainless steel shell through an electric heating wire, thereby preheating the annular hot press 119. It has high heat conduction efficiency, fast temperature adjustment response, and is easy to install.

[0052] In this embodiment of the present invention, the annular hot-pressing component 119 includes a nickel-based alloy ring, the lower end face of which is coated with a nitride ceramic coating, and the positioning frame 112 includes a fluorosilicone rubber ring.

[0053] The nickel-based alloy ring has the advantages of high temperature resistance, high hardness, and strong oxidation resistance, making it suitable for long-term high-temperature working conditions. The nitride ceramic coating has high temperature resistance and low friction coefficient, thereby avoiding the adhesion of the nickel-based alloy ring to the upper film during hot pressing, which would affect the hot pressing effect.

[0054] The fluorosilicone rubber ring has a certain elasticity, which makes the contact between the positioning frame 112 and the annular hot-pressed part 119 better. At the same time, fluorosilicone rubber is easy to process, and different positioning frames 112 can be made according to different finished parts, so that the positioning effect of the positioning frame 112 is better. Moreover, fluorosilicone rubber has stable high temperature resistance.

[0055] In this embodiment of the present invention, the pressing component 117 includes a high-temperature silicone rubber component;

[0056] High-temperature silicone rubber parts have good high-temperature resistance and are also good at blocking heat transfer to the downward pressing part 117.

[0057] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bagging apparatus for printed upright signs, characterized in that, It includes a base (101) and a frame (102) fixed on the base (101). The base (101) is equipped with a feeding assembly (103), and the frame (102) is equipped with a heat-sealing assembly (104). The feeding assembly (103) includes a feeding vertical plate assembly (105) and a displacement assembly (106) fixed on the base (101). The feeding vertical plate assembly (105) includes a first feeding vertical plate (107) and a second feeding vertical plate (108) symmetrically fixed on the base (101). Feeding grooves (109) are respectively opened on the opposite surfaces of the first feeding vertical plate (107) and the second feeding vertical plate (108). 9) An inner sliding loading bearing plate (110) is provided, and a loading receiving groove (111) is provided on the loading bearing plate (110). A positioning frame (112) is fixed in the loading receiving groove (111). A downward pressure relief groove (113) is formed between the positioning frame (112) and the inner wall of the loading receiving groove (111). A displacement component (106) is fixed on the base (101) to drive the loading bearing plate (110) to slide in the loading receiving groove (111). The hot-press sealing assembly (104) includes a lifting power component (114) fixed on the frame (102). A pressing mounting plate (116) is fixed on the working shaft of the lifting power component (114). A pressing component (117) is installed at the lower end of the pressing mounting plate (116). A hot-pressing working groove (118) is opened on the inner bottom surface of the pressing component (117). The positioning frame (112) is aligned and fitted in the hot-pressing working groove (118). An annular hot-pressing component (119) that abuts against the positioning frame (112) is installed on the inner bottom surface of the hot-pressing working groove (118). The periphery of the lower end face of the pressing component (117) is aligned and inserted in the pressing relief groove (113). A heating component (120) for heating the annular hot-pressing component (119) is installed on the pressing component (117).

2. A bagging apparatus for printed upright signs according to claim 1, wherein, The pressing mounting plate (116) has a first mounting hole (121), and a first guide shaft (122) is fixedly installed in the first mounting hole (121). The upper end face of the pressing member (117) has a second mounting hole (123). The lower end of the first guide shaft (122) passes through the second mounting hole (123) and is fixedly connected to the annular hot press member (119). A first elastic member (124) is sleeved on the first guide shaft (122). The upper end of the first elastic member (124) abuts against the lower end face of the pressing mounting plate (116), and the lower end of the first elastic member (124) abuts against the upper end face of the pressing member (117).

3. A bagging apparatus for printed upright signs according to claim 2, wherein, The outer side of the pressing member (117) is provided with an outer frame (125). The upper end surface of the outer frame (125) is provided with a pressing mounting groove (126) for accommodating the pressing member (117). The four corners of the upper end surface of the outer frame (125) are respectively provided with pressing mounting holes (127). The second guide shaft (128) is fixedly installed in the pressing mounting holes (127). The upper end of the second guide shaft (128) is fixed with an upper limit block (129). The second elastic member (130) is sleeved on the second guide shaft (128). The upper end of the second elastic member (130) abuts and cooperates with the pressing mounting plate (116), and the lower end of the second elastic member (130) abuts and cooperates with the outer frame (125).

4. A bagging apparatus for printed upright signs according to any one of claims 1 to 3, characterised in that, The upper end face of the pressing member (117) is provided with a heating receiving groove (131), and the annular hot pressing member (119) is provided with a heating insertion groove (132). The heating member (120) passes through the heating receiving groove (131) and is inserted into the heating insertion groove (132).

5. A bagging apparatus for printing standing cards according to claim 4, characterized in that, The displacement assembly (106) includes a displacement plate (133) fixed on the base (101), and a horizontally arranged cylinder component (134) is fixed on the displacement plate (133). The working shaft of the cylinder component (134) is fixedly connected to the loading bearing plate (110).

6. The bagging device for printed standees according to claim 5, characterized in that, The heating element (120) includes a stainless steel shell and an electric heating wire disposed within the stainless steel shell.

7. A bagging apparatus for printed upright signs according to claim 6, wherein, The annular hot-pressed component (119) includes a nickel-based alloy ring, the lower end face of which is coated with a nitride ceramic coating, and the positioning frame (112) includes a fluorosilicone rubber ring.

8. A bagging apparatus for printed upright signs according to claim 7, wherein, The pressing component (117) includes a high-temperature silicone rubber component.