A pearl wool packaging piece bonding device

The EPE foam packaging bonding equipment, with its modular design and intelligent sensing system, solves the problems of low positioning accuracy and poor process adaptability in traditional bonding methods. It achieves efficient and accurate positioning and stable bonding of irregularly shaped EPE foam packaging, thereby improving production efficiency and bonding quality.

CN224296633UActive Publication Date: 2026-05-29TAIXING YIYUAN ENVIRONMENTAL PROTECTION NEW MATERIAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIXING YIYUAN ENVIRONMENTAL PROTECTION NEW MATERIAL TECH CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional EPE foam packaging bonding methods suffer from low positioning accuracy and poor process adaptability. They are particularly inefficient in bonding irregularly shaped packaging, and hot melt bonding can easily lead to material deformation or weak adhesion. Uneven glue application also affects the bonding quality.

Method used

The modular design of the pearl cotton packaging bonding equipment, combined with an intelligent sensing system, achieves precise positioning through upper and lower limit plates and a two-way clamping mechanism, uses dual pressure sensors and PTC heating elements for precise temperature control, and combines adhesive bonding and hot melt processes to adapt to bonding requirements of different specifications.

Benefits of technology

It achieves efficient and precise positioning and stable bonding of pearl cotton packaging parts, improves bonding quality and production efficiency, reduces energy consumption, is compatible with multiple processes, has strong adaptability, and improves yield.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to pearl wool packaging piece bonding technical field, specifically disclose a pearl wool packaging piece bonding equipment, including operation platform, the top vertical of operation platform is equipped with lower limit board, the lower clamping mechanism of symmetrical setting in lower limit board front two sides, the lower clamping mechanism includes two lower clamping plates of sliding connection in operation platform top and drive lower telescopic device of clamping plate, the rear end of operation platform is equipped with support frame, the top of support frame is equipped with the crossbeam parallel with operation platform, the below of crossbeam is equipped with heating mechanism, heating mechanism includes the sliding seat of sliding connection with crossbeam, locates first elevating gear in the sliding seat bottom, the first pressure sensor of connecting first elevating gear output end and the electric heating ironing board through the connecting seat and first pressure sensor connection, adopt two -way pressure sensing technology to ensure that bonding pressure is accurate controllable, and realize temperature accurate regulation, significantly promote production yield and reduce energy consumption.
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Description

Technical Field

[0001] This utility model relates to the field of EPE foam packaging bonding technology, and specifically discloses an EPE foam packaging bonding device. Background Technology

[0002] EPE foam packaging is widely used in the packaging of electronic products, precision instruments, and other fields due to its lightweight and excellent cushioning performance. In the production process of EPE foam packaging, the bonding process is a critical step, directly affecting the product's sealing performance, structural strength, and appearance quality. Traditional bonding methods mainly include two types: hot melt bonding and adhesive bonding.

[0003] Traditional hot-press bonding involves directly pressing the seams of pearl cotton together with a heating plate, using the material itself to melt and bond. However, this bonding method has poor temperature and pressure control, which can easily lead to over-melting (material deformation) or weak bonding. In addition, manual positioning is inefficient and difficult to adapt to rapid switching between multiple product specifications.

[0004] Adhesive bonding (such as the EPE foam packaging bonding equipment in the prior art document CN219007072U) uses a brush coating mechanism to automate the application of adhesive. The brush plate is driven by a cylinder to reciprocate, and the EPE foam is fixed by upper and lower clamping components. However, this equipment has defects: the uniformity of adhesive application depends on the accuracy of the brush plate movement, which can easily lead to missed coating or accumulation; the clamping mechanism only fixes the sides, and the middle is prone to displacement due to brush coating pressure, affecting the bonding alignment accuracy; and the adhesive requires additional time to cure, which limits production efficiency.

[0005] To address the aforementioned issues, this utility model proposes an adhesive bonding device for pearl cotton packaging that integrates hot melt bonding and intelligent pressure control. Utility Model Content

[0006] This utility model proposes a bonding device for pearl cotton packaging. Through modular design, it integrates adhesive bonding and hot melt processes, and combines an intelligent sensing system to solve the problems of low positioning accuracy and poor process adaptability in the prior art. It is especially suitable for the efficient bonding of irregularly shaped pearl cotton packaging.

[0007] This utility model is implemented as follows: a pearl cotton packaging bonding device includes an operating table. A lower limiting plate is vertically mounted on the top of the operating table, and lower clamping mechanisms are symmetrically arranged on both sides in front of the lower limiting plate. The lower clamping mechanisms include two lower clamping plates slidably connected to the top of the operating table and a lower telescopic device for driving the lower clamping plates. A support frame is provided at the rear end of the operating table, and a crossbeam parallel to the operating table is provided at the top of the support frame. A heating mechanism is provided below the crossbeam, including a slide block slidably connected to the crossbeam, a first lifting device located at the bottom of the slide block, a first pressure sensor connected to the output end of the first lifting device, and an electrically heated ironing plate connected to the first pressure sensor via a connecting seat. A second lifting device is provided in the middle of the crossbeam, and a second pressure sensor is connected to the output end of the second lifting device. A lifting seat is fixedly connected to the bottom of the second pressure sensor. An upper limiting plate perpendicular to the lower limiting plate and upper clamping mechanisms symmetrically arranged on both sides in front of the upper limiting plate are provided at the bottom of the lifting seat. The upper clamping mechanisms include two upper clamping plates slidably connected to the bottom of the lifting seat and an upper telescopic device for driving the upper clamping plates.

[0008] As a preferred embodiment of the EPE foam packaging bonding equipment of this utility model, the top plate of the operating table has a sliding groove adapted to the lower limit plate in the extension direction. The lower end of the lower clamping plate is located in the sliding groove and is slidably connected to it. The lower telescopic device is an electric push rod, the housing of which is fixed to the inner wall of the sliding groove, and the telescopic end is fixedly connected to the lower clamping plate.

[0009] As a preferred embodiment of the pearl cotton packaging bonding equipment of this utility model, the bottom extension direction of the lifting seat is provided with an upper sliding groove adapted to the upper clamping plate, the upper end of the upper clamping plate is located in the upper sliding groove and slidably connected thereto, and the upper telescopic device is an electric cylinder, the cylinder body of which is fixed to the inner wall of the upper sliding groove, and the piston rod is fixedly connected to the upper clamping plate.

[0010] As a preferred embodiment of the EPE foam packaging bonding equipment of this utility model, the slide is a dovetail-shaped structure, the bottom of the crossbeam is provided with an adjustment groove that slides with the slide, one side of the crossbeam is provided with two lead screws with synchronous pulleys at one end, the two synchronous pulleys are provided with synchronous belts, the other end of the two lead screws extends into the adjustment groove and threaded through the slide, and the crossbeam is provided with a motor that is fixedly connected to one of the lead screws.

[0011] As a preferred embodiment of the EPE foam packaging bonding device of this utility model, the electric heating plate includes an aluminum alloy substrate, multiple sets of PTC heating elements embedded in the aluminum alloy substrate, and an anti-stick coating covering the bottom of the aluminum alloy substrate. The aluminum alloy substrate is provided with a temperature sensor electrically connected to the PTC heating elements.

[0012] As a preferred embodiment of the EPE foam packaging bonding equipment of this utility model, the support frame is provided with a controller on its side. The controller includes a signal receiving module, a drive control module, and a human-machine interaction module. The signal receiving module is electrically connected to a second pressure sensor, a first pressure sensor, and a temperature sensor, respectively. The drive control module is electrically connected to a second lifting device, a first lifting device, a lower telescopic device, an upper telescopic device, and a motor, respectively. The human-machine interaction module includes a touch screen and an emergency stop button.

[0013] As a preferred embodiment of the EPE foam packaging bonding equipment of this utility model, the opposing surfaces of the lower limit plate and the upper limit plate are provided with an elastic buffer layer.

[0014] The beneficial effects of this utility model are:

[0015] 1. Through the coordinated action of the upper and lower limit plates and the bidirectional clamping mechanism, the precise positioning of the pearl cotton packaging is achieved, solving the positioning offset problem caused by traditional side clamping.

[0016] 2. The use of dual pressure sensors for real-time monitoring improves the accuracy of bonding pressure control and avoids material deformation or weak bonding caused by uneven pressure in traditional processes.

[0017] 3. Precise temperature control is achieved through PTC heating elements and temperature sensors, which reduces temperature fluctuations compared to traditional heating methods and ensures stable bonding quality. Furthermore, the modular design shortens the processing time for a single part, improves production efficiency, and is compatible with both hot melt and adhesive bonding processes, making it highly adaptable. This results in improved yield and reduced energy consumption. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 for Figure 1 A schematic diagram of the AA-direction structure.

[0021] Figure 3 for Figure 1 A schematic diagram of the rear view structure.

[0022] Figure 4 This is a cross-sectional view of the electric heating plate of this utility model.

[0023] Figure 5This is a schematic diagram of the structure of the lower clamping plate and the elastic buffer layer of this utility model.

[0024] The markings in the diagram are: 1. Operating platform; 2. Lower limit plate; 3. Lower clamping plate; 4. Lower telescopic device; 5. Support frame; 6. Crossbeam; 7. Slide seat; 8. First lifting device; 9. First pressure sensor; 10. Connecting seat; 11. Electric heating plate; 12. Second lifting device; 13. Second pressure sensor; 14. Lifting seat; 15. Upper limit plate; 16. Upper clamping plate; 17. Upper telescopic device; 18. Lower sliding groove; 19. Upper sliding groove; 20. Adjustment groove; 21. Synchronous pulley; 22. Lead screw; 23. Synchronous belt; 24. Motor; 25. Aluminum alloy substrate; 26. PTC heating element; 27. Anti-stick coating; 28. Temperature sensor; 29. ​​Controller; 30. Elastic buffer layer. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0026] Please see Figure 1-5 A bonding device for pearl cotton packaging includes an operating table 1. A lower limit plate 2 is vertically mounted on the top of the operating table 1, and lower clamping mechanisms are symmetrically arranged on both sides in front of the lower limit plate 2. The lower clamping mechanisms include two lower clamping plates 3 slidably connected to the top of the operating table 1 and a lower telescopic device 4 for driving the lower clamping plates 3. A support frame 5 is provided at the rear end of the operating table 1, and a crossbeam 6 parallel to the operating table 1 is provided on the top of the support frame 5. A heating mechanism is provided below the crossbeam 6, and the heating mechanism includes a slide 7 slidably connected to the crossbeam 6, a first lifting device 8 located at the bottom of the slide 7, and a connection to the first lifting device 8. The output end includes a first pressure sensor 9 and an electric heating plate 11 connected to the first pressure sensor 9 via a connecting seat 10; a second lifting device 12 is provided in the middle of the crossbeam 6, the output end of the second lifting device 12 is connected to a second pressure sensor 13, and a lifting seat 14 is fixedly connected to the bottom of the second pressure sensor 13; the bottom of the lifting seat 14 is provided with an upper limit plate 15 perpendicular to the lower limit plate 2 and an upper clamping mechanism symmetrically arranged on both sides in front of the upper limit plate 15, the upper clamping mechanism includes two upper clamping plates 16 slidably connected to the bottom of the lifting seat 14 and an upper telescopic device 17 for driving the upper clamping plates 16.

[0027] In this embodiment: the lower clamping mechanism drives the lower clamping plate 3 to slide in the lower sliding groove 18 of the operating table 1 via the lower telescopic device 4 to clamp the bottom of a pearl cotton package; the upper clamping mechanism drives the upper clamping plate 16 to slide in the upper sliding groove 19 of the lifting seat 14 via the upper telescopic device 17 to clamp the top of another pearl cotton package to be bonded, and works in conjunction with the lower limiting plate 2 and the upper limiting plate 15 to ensure the stability of the pearl cotton package during the bonding process; the multiple sets of PTC heating elements 26 of the electric heating plate 11 are embedded in the aluminum alloy substrate 25, and generate heat after being powered on. The heat is evenly transferred to the bonding part of the pearl cotton package through the aluminum alloy substrate 25, and the anti-stick coating 2... 7. To prevent the pearl cotton packaging from sticking to the electric heating plate 11; the slide 7 and the crossbeam 6 are slidably engaged through a dovetail structure and an adjustment groove 20. The motor 24 drives the lead screw 22 to rotate, and the slide 7 is moved through the synchronous wheel 21 and the synchronous belt 23, so as to realize the position adjustment of the electric heating plate 11 under the crossbeam 6 to adapt to the bonding requirements of different positions; the first pressure sensor 9 and the second pressure sensor 13 monitor the upper and lower pressure in real time, the temperature sensor 28 monitors the temperature of the electric heating plate 11 in real time, the signal receiving module of the controller 29 receives these signals, and the drive control module controls each device according to the signals to realize the precise adjustment and control of pressure and temperature.

[0028] As a technical optimization of this utility model, the top plate of the operating table 1 has a sliding groove 18 that is adapted to the lower limit plate 2 in the extension direction. The lower end of the lower clamping plate 3 is located in the sliding groove 18 and is slidably connected to it. The lower telescopic device 4 is an electric push rod, the housing of which is fixed to the inner wall of the sliding groove 18, and the telescopic end is fixedly connected to the lower clamping plate 3.

[0029] In this embodiment: the sliding groove 18 provides a track for the sliding of the lower clamping plate 3, ensuring the straightness and stability of the sliding of the lower clamping plate 3; the electric push rod controls the opening and closing action of the lower clamping plate 3 to achieve stable clamping of the pearl cotton packaging, and the electric push rod has high power and control precision, which can meet the clamping requirements of different specifications of packaging.

[0030] As a technical optimization of this utility model, the bottom extension direction of the lifting seat 14 is provided with an upper sliding groove 19 that is adapted to the upper clamping plate 16. The upper end of the upper clamping plate 16 is located in the upper sliding groove 19 and is slidably connected thereto. The upper telescopic device 17 is an electric cylinder, the cylinder body of which is fixed to the inner wall of the upper sliding groove 19, and the piston rod is fixedly connected to the upper clamping plate 16.

[0031] In this embodiment: the upper slide groove 19 provides a track for the upper clamping plate 16 to slide, ensuring the linearity and stability of the upper clamping plate 16 sliding, and is adapted to the upper limit plate 15. The electric cylinder can quickly drive the upper clamping plate 16 to perform opening and closing actions, realizing the rapid clamping of the pearl cotton packaging. The electric cylinder has the characteristics of fast response speed and large power, and can adapt to different work requirements.

[0032] As a technical optimization of this utility model, the slide 7 has a dovetail structure, and the bottom of the crossbeam 6 is provided with an adjustment groove 20 that slides and engages with the slide 7. Two lead screws 22 with synchronous pulleys 21 at one end are provided on one side of the crossbeam 6. The two synchronous pulleys 21 are provided with synchronous belts 23. The other end of the two lead screws 22 extends into the adjustment groove 20 and is threaded through the slide 7. A motor 24 is provided on the crossbeam 6 and is fixedly connected to one of the lead screws 22.

[0033] In this embodiment, the dovetail-shaped slide block 7 slides in conjunction with the adjustment groove 20 at the bottom of the crossbeam 6, providing good stability and guidance. This ensures the accuracy and reliability of the slide block 7 when sliding on the crossbeam 6, preventing wobbling and other issues. The motor 24 drives one of the lead screws 22, which are connected by a synchronous belt 23, ensuring that the two lead screws 22 rotate synchronously. This allows for precise control of the sliding distance and speed of the slide block 7, meeting the heating requirements of different positions.

[0034] As a technical optimization of this utility model, the electric heating plate 11 includes an aluminum alloy substrate 25, multiple sets of PTC heating elements 26 embedded in the aluminum alloy substrate 25, and an anti-stick coating 27 covering the bottom of the aluminum alloy substrate 25. The aluminum alloy substrate 25 is provided with a temperature sensor 28 that is electrically connected to the PTC heating elements 26.

[0035] In this embodiment: the aluminum alloy substrate 25 serves as the main structure of the electric heating plate 11, possessing excellent thermal conductivity, enabling rapid transfer of heat generated by the PTC heating element 26 to the pearl cotton packaging, thus improving heating efficiency. Furthermore, the aluminum alloy material exhibits certain strength and stability, ensuring the service life of the electric heating plate 11. Multiple sets of PTC heating elements 26 guarantee the uniformity and stability of heating. An anti-stick coating 27 covers the bottom of the aluminum alloy substrate 25, preventing the pearl cotton packaging from adhering to the electric heating plate 11 during the heating and bonding process, facilitating operation and cleaning, and improving work efficiency. The temperature sensor 28 can detect the temperature of the electric heating plate 11 in real time and provide feedback to the control system, achieving precise temperature control and ensuring that the pearl cotton packaging is bonded at a suitable temperature, avoiding adverse effects on the bonding effect due to excessively high or low temperatures.

[0036] As a technical optimization of this utility model, the support frame 5 is provided with a controller 29 on its side. The controller 29 includes a signal receiving module, a drive control module, and a human-machine interaction module. The signal receiving module is electrically connected to the second pressure sensor 13, the first pressure sensor 9, and the temperature sensor 28, respectively. The drive control module is electrically connected to the second lifting device 12, the first lifting device 8, the lower telescopic device 4, the upper telescopic device 17, and the motor 24, respectively. The human-machine interaction module includes a touch screen and an emergency stop button.

[0037] In this embodiment: the signal receiving module can receive the pressure and temperature signals detected by these sensors in real time, and transmit the signals to the control system for analysis and processing, providing data support for the precise control of the equipment; the drive control module drives these components to perform corresponding actions according to the instructions of the control system, realizing precise control of each part of the equipment and ensuring the normal operation and working accuracy of the equipment; the touch screen facilitates interaction between the operator and the equipment, allowing for parameter setting, operation command input, equipment status monitoring, and other operations, enabling the operator to intuitively understand the equipment's operating status and control the equipment, improving the convenience and efficiency of operation; the emergency stop button allows the operator to press the emergency stop button in case of an emergency to immediately stop the operation of the equipment and ensure the safety of the equipment and personnel.

[0038] As a technical optimization of this utility model, the opposing surfaces of the lower limit plate 2 and the upper limit plate 15 are provided with an elastic buffer layer 30.

[0039] In this embodiment, the elastic buffer layer 30 can buffer the EPE foam packaging when limiting and clamping it, avoiding damage to the EPE foam packaging due to hard contact, protecting the integrity of the EPE foam packaging, and making the limiting and clamping process more stable and reliable.

[0040] Working principle and usage process of this utility model:

[0041] The operator sets the heating temperature, pressure, and other parameters via the touchscreen of the controller 29; places the pearl cotton package on the operating table 1, ensuring its bottom is against the lower limit plate 2; the lower telescopic device 4 drives the two lower clamping plates 3 to move towards each other, clamping and fixing the bottom sides of the pearl cotton package; then, another pearl cotton package is placed against the bottom of the lifting seat 14 and against the front end of the upper limit plate 15, and simultaneously the upper telescopic device 17 is activated, the upper clamping plate 16 clamps and fixes the pearl cotton package, the motor 24 drives the lead screw 22 to rotate, causing the slide 7 to move the electric heating plate 11 above the area of ​​the pearl cotton package to be bonded; the first lifting device 8 drives the electric heating plate 11... The container is lowered to bring it close to the package. The PTC heating element 26 in the electric heating plate 11 starts working to heat the part of the pearl cotton package to be bonded. The temperature sensor 28 monitors the temperature in real time and feeds it back to the controller 29 to ensure that the heating temperature meets the set value. The second lifting device 12 is activated to drive the lifting seat 14 to lower, so that the upper pearl cotton package and the lower pearl cotton package to be bonded are tightly attached. The second pressure sensor 13 monitors the pressure in real time and feeds it back to the controller 29 to ensure that the applied pressure is appropriate. After the set time is maintained, the upper and lower clamping mechanisms are released simultaneously after the bonding is completed. The operator takes the bonded pearl cotton package off the operating table 1 to prepare for the next cycle.

[0042] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A bonding device for pearl cotton packaging, characterized in that: The system includes an operating table (1), with a lower limit plate (2) vertically mounted on the top of the operating table (1) and lower clamping mechanisms symmetrically arranged on both sides in front of the lower limit plate (2); the lower clamping mechanisms include two lower clamping plates (3) slidably connected to the top of the operating table (1) and a lower telescopic device (4) for driving the lower clamping plates (3); a support frame (5) is provided at the rear end of the operating table (1), and a crossbeam (6) parallel to the operating table (1) is provided at the top of the support frame (5); a heating mechanism is provided below the crossbeam (6), and the heating mechanism includes a slide (7) slidably connected to the crossbeam (6), a first lifting device (8) located at the bottom of the slide (7), and an output connected to the first lifting device (8). The first pressure sensor (9) at the end and the electric heating plate (11) connected to the first pressure sensor (9) through the connecting seat (10); the middle of the crossbeam (6) is provided with a second lifting device (12), the output end of the second lifting device (12) is connected to a second pressure sensor (13), and the bottom of the second pressure sensor (13) is fixedly connected to a lifting seat (14); the bottom of the lifting seat (14) is provided with an upper limit plate (15) perpendicular to the lower limit plate (2) and an upper clamping mechanism symmetrically arranged on both sides in front of the upper limit plate (15). The upper clamping mechanism includes two upper clamping plates (16) slidably connected to the bottom of the lifting seat (14) and an upper telescopic device (17) for driving the upper clamping plates (16).

2. The pearl cotton packaging bonding equipment according to claim 1, characterized in that: The top plate of the operating table (1) has a sliding groove (18) that is adapted to the lower limit plate (2) in the extension direction. The lower end of the lower clamping plate (3) is located in the sliding groove (18) and is slidably connected to it. The lower telescopic device (4) is an electric push rod, whose housing is fixed to the inner wall of the sliding groove (18), and the telescopic end is fixedly connected to the lower clamping plate (3).

3. The pearl cotton packaging bonding equipment according to claim 1, characterized in that: The bottom extension direction of the lifting seat (14) is provided with an upper sliding groove (19) that is adapted to the upper clamping plate (16). The upper end of the upper clamping plate (16) is located in the upper sliding groove (19) and is slidably connected thereto. The upper telescopic device (17) is an electric cylinder, the cylinder body of which is fixed to the inner wall of the upper sliding groove (19), and the piston rod is fixedly connected to the upper clamping plate (16).

4. The pearl cotton packaging bonding equipment according to claim 1, characterized in that: The slide (7) has a dovetail structure. The bottom of the crossbeam (6) is provided with an adjustment groove (20) that slides and engages with the slide (7). Two lead screws (22) with synchronous pulleys (21) at one end are provided on one side of the crossbeam (6). The two synchronous pulleys (21) are provided with synchronous belts (23). The other end of the two lead screws (22) extends into the adjustment groove (20) and is threaded through the slide (7). The crossbeam (6) is provided with a motor (24) that is fixedly connected to one of the lead screws (22).

5. The pearl cotton packaging bonding equipment according to claim 1, characterized in that: The electric heating plate (11) includes an aluminum alloy substrate (25), multiple sets of PTC heating elements (26) embedded in the aluminum alloy substrate (25), and an anti-stick coating (27) covering the bottom of the aluminum alloy substrate (25). The aluminum alloy substrate (25) is provided with a temperature sensor (28) that is electrically connected to the PTC heating elements (26).

6. The pearl cotton packaging bonding equipment according to claim 4, characterized in that: The support frame (5) is provided with a controller (29) on its side. The controller (29) includes a signal receiving module, a drive control module, and a human-machine interaction module. The signal receiving module is electrically connected to the second pressure sensor (13), the first pressure sensor (9), and the temperature sensor (28), respectively. The drive control module is electrically connected to the second lifting device (12), the first lifting device (8), the lower telescopic device (4), the upper telescopic device (17), and the motor (24), respectively. The human-machine interaction module includes a touch screen and an emergency stop button.

7. The pearl cotton packaging bonding equipment according to claim 1, characterized in that: The opposing surfaces of the lower limit plate (2) and the upper limit plate (15) are provided with an elastic buffer layer (30).