Water gap residual glue hot-pressing device

What is AI technical title?
AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
By designing a water inlet residual pressure device including machine, fixed mechanism, thermal pressure mechanism, and driving mechanism, it solves the problem of difficulty removing the water inlet residue after injection molding. And product quality.

CN222406957UActive Publication Date: 2025-01-28DONGGUAN XIHE PRECISION TECH CO LTD +1

View PDF 0 Cites 0 Cited by

Patent Information

Application Number: CN202323498015.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2023-12-20
Publication Date: 2025-01-28
Estimated Expiration: 2033-12-20

AI Technical Summary

Technical Problem

In the prior art, residual glue is usually left at the water outlet of the product after injection molding. The existing methods mainly rely on manpower to select and remove, which is inefficient, time-consuming and cannot guarantee that the product meets the requirements after removal.

Method used

A water inlet residual gel heat pressure device is designed, including machines, fixed agencies, heat pressure mechanisms and drivers. The thermal pressure mechanism consists of pressure plates, thermal pressure heads and heating units. The product is fixed through a fixed mechanism, and the first drive mechanism drives the heat pressure mechanism to move the product direction. Remove.

Benefits of technology

Realize the rapidly and automatically remove the water inlet of the product, improve efficiency, save manpower, and ensure the quality of post -product removal.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN222406957U_ABST

Patent Text Reader

Abstract

The utility model discloses a water gap residual glue hot-pressing device which comprises a machine table and a hot-pressing assembly, and the hot-pressing assembly comprises a fixing mechanism arranged on the machine table and used for fixing a product, a hot-pressing mechanism and a first driving mechanism used for driving the hot-pressing mechanism to move towards the product direction so as to carry out hot pressing on water gap residual glue. The hot-pressing mechanism comprises a pressing plate, a hot-pressing head which is arranged on the pressing plate and corresponds to a water gap adhesive residue position on the product, and a heating unit for heating the hot-pressing head. According to the water gap residual glue hot-pressing device, a product can be fixed through the fixing mechanism arranged on the machine table, and the first driving mechanism drives the hot-pressing mechanism to move towards the product, so that the hot-pressing head heated by the heating unit is used for hot-pressing and flattening the residual glue, and the water gap residual glue is removed; compared with a manual residual glue removing mode, the residual glue removing device has the advantages that the residual glue at all the water gaps of the product can be removed through one-time pressing of the pressing plate and the hot pressing head, efficiency is improved, manpower is saved, the flattening effect is improved, and cost is reduced.

Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the field of injection molding product manufacturing, in particular to a nozzle residual glue hot pressing device. Background Art

[0002] After injection molding, the product usually has residual glue at the gate. At present, the common practice is to select defective products through full inspection, and then remove the residual glue manually, which wastes a lot of manpower and time, and cannot guarantee that the product meets the requirements after removal. Therefore, how to quickly and effectively remove the residual glue at the gate of the product, save manpower, reduce costs, and improve efficiency has become a technical problem that needs to be solved urgently. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a hot pressing device for residual glue at the nozzle of a product, which can quickly and automatically flatten the residual glue at the nozzle of the product.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: a hot pressing device for residual glue at the sprue is provided, including a machine platform and a hot pressing component, the hot pressing component including a fixing mechanism arranged on the machine platform and used to fix the product, a hot pressing mechanism and a first driving mechanism used to drive the hot pressing mechanism to move toward the product direction to hot press the residual glue at the sprue, the hot pressing mechanism including a pressing plate, a hot pressing head arranged on the pressing plate at a position corresponding to the residual glue at the sprue on the product, and a heating unit used to heat the hot pressing head.

[0005] Further, the fixing mechanism includes a product positioning plate and positioning posts provided on the product positioning plate corresponding to at least two holes or slots on the product;

[0006] A first support platform is provided on the product positioning plate corresponding to each residual glue position at the sprue, and the first support platform is used to support the position corresponding to the residual glue position at the sprue on the lower surface of the product.

[0007] Furthermore, the product is a plate-shaped structure, and a through hole is provided on the product; a second support platform for supporting at least a part of the product is provided on the product positioning plate, and a guide boss is provided on the product positioning plate at a position corresponding to the through hole;

[0008] The product positioning plate is provided with a first vacuum adsorption channel, the inner end of the first vacuum adsorption channel penetrates a side of the product positioning plate facing the product, and the outer end of the first vacuum adsorption channel penetrates the product positioning plate to communicate with a vacuum air source.

[0009] Furthermore, the fixing mechanism also includes a base plate arranged under the product positioning plate, the base plate is provided with a groove, the groove and the product positioning plate enclose a closed cavity, the outer end of the first vacuum adsorption channel passes through a side of the product positioning plate facing the groove to communicate with the closed cavity, and the closed cavity is connected to an external vacuum air source through a second vacuum adsorption channel.

[0010] Furthermore, the pressing plate and the hot pressing head are both made of heat-conductive materials, the pressing plate has a plurality of hollow assembly cavities, at least one end of the assembly cavity passes through the pressing plate outward to form an assembly port; the heating unit includes a heating rod assembled in the assembly cavity through the assembly port and a temperature sensor arranged on the pressing plate, the heating rod is used to heat the pressing plate to transfer heat to the hot pressing head through the pressing plate.

[0011] Furthermore, the hot pressing mechanism also includes a heat insulation plate arranged above the pressing plate, a connecting plate is connected above the heat insulation plate, and the connecting plate is connected to the output end of the first driving mechanism.

[0012] Furthermore, the machine is provided with a frame, the first driving mechanism is installed on the top of the frame with its output shaft facing downward, the fixing mechanism of the hot pressing assembly is arranged on the machine directly below the frame, and the hot pressing mechanism is located directly above the fixing mechanism and connected to the output shaft of the first driving mechanism.

[0013] Furthermore, a guide assembly is also provided on the machine, and the guide assembly includes a guide rod group and a guide plate. The lower end of the guide rod group is connected to the machine, and the upper end is connected to the top of the frame. The lower surface of the guide plate is connected to the top of the hot pressing mechanism, and the upper surface is connected to the output shaft of the first driving mechanism, and the guide plate is slidably assembled on the guide rod group.

[0014] Furthermore, a linear moving module is provided at a position on the machine corresponding to the fixing mechanism. The fixing mechanism is provided on the linear moving module so as to be able to move linearly back and forth. When the fixing mechanism moves to a position directly below the hot pressing mechanism, it is located at a hot pressing working position. When the fixing mechanism moves out of a corresponding position directly below the hot pressing mechanism, it is located at an upper / lower material position.

[0015] Furthermore, the hot pressing components are limited to multiple groups; the linear movable module includes slide rails and second driving mechanisms corresponding to the fixing mechanisms of the multiple groups of hot pressing components; the fixing mechanisms are slidably assembled on the corresponding slide rails, the second driving mechanism is arranged in the hollow cavity of the machine in a manner parallel to the slide rails, and the output shaft of the second driving mechanism is connected to a connecting frame, and the connecting frame has a bracket connected to each fixing mechanism; an elongated through hole parallel to the slide rail is arranged at a position corresponding to each fixing mechanism on the machine, and the bracket is connected to the fixing mechanism after passing through the elongated through hole upward.

[0016] The utility model discloses a hot pressing device for residual glue at water outlet, which has at least the following beneficial effects: the product can be fixed by a fixing mechanism arranged on the machine platform, and the first driving mechanism drives the hot pressing mechanism to move toward the product, so that the hot pressing head heated by the heating unit will flatten the residual glue by hot pressing, thereby removing the residual glue at the water outlet; compared with the method of removing residual glue manually, the residual glue at all water outlets on the product can be removed by pressing down the pressing plate and the hot pressing head once, thereby improving efficiency and saving manpower; a first supporting platform is arranged on the product positioning plate at the position of the residual glue, and the first supporting platform is used to support the residual glue at the water outlet to prevent the corresponding position on the product from being deformed due to the large pressure of the hot pressing head, and at the same time provide stable support, thereby improving Flattening effect; a linear module is set on the machine to realize the switching of the fixing mechanism between the hot pressing work position and the upper / lower material position. After the injection mold molds the product, the robot can directly grab the molded product to the fixing mechanism of the upper / lower material position, and then move the product to the hot pressing work position through the second driving mechanism, which is convenient for taking and placing products and improving the automation of the hot pressing device; a vacuum adsorption unit (vacuum adsorption channel and closed cavity) is set on the fixing mechanism, which can also adsorb the product when positioning the product horizontally, further improving the product positioning effect; multiple fixing mechanisms can realize reciprocating movement on their respective tracks through a connecting frame and a second driving mechanism, which improves synchronization and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of an implementation mode of a nozzle residual glue hot pressing device of the utility model.

[0019] Figure 2 It is a schematic diagram of the structure behind the front side plate of the machine in one embodiment of the hot pressing device for residual glue at the sprue of the utility model.

[0020] Figure 3It is a structural schematic diagram of one group of hot pressing components in one embodiment of the hot pressing device for residual glue at a sprue outlet of the utility model.

[0021] Figure 4 yes Figure 3 Longitudinal section of the fixing mechanism.

[0022] The accompanying drawings in the specification are numeraled as follows:

[0023] The machine 100; the long through hole 101; the slide rail 110; the second driving mechanism 120; the connecting frame 130; the bracket 131; the frame 140; the first driving mechanism 230; the outer cover 231; the guide assembly 150; the guide rod group 151; the guide plate 152; the position detection unit 153;

[0024] Hot pressing assembly 200; fixing mechanism 210; bottom plate 211; product positioning plate 212; coarse positioning block 212a; positioning column 212b; first support platform 212c; guide boss 212d; second support platform 212e; boss 212f; closed cavity 213; second vacuum adsorption channel 214; first vacuum adsorption channel 215; hot pressing mechanism 220; pressing plate 221; assembly port 221a; hot pressing head 222; heating rod 223; temperature sensor 224; heat insulation board 225;

[0025] Mobile phone middle frame 300 ; frame 310 ; middle plate 320 ; opening 321 . DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] See also Figure 1 and Figure 2, which is a structural schematic diagram of an implementation mode of a nozzle residual glue hot pressing device of the utility model. Figure 1 and Figure 2 In the illustrated embodiment, the hot pressing device for residual glue at the sprue includes a machine 100 and two groups of hot pressing components 200, each group of the hot pressing components 200 includes a fixing mechanism 210, a hot pressing mechanism 220, and a first driving mechanism 230 for driving the hot pressing mechanism 220 to move toward the product direction to hot press the residual glue at the sprue. The number of groups of the hot pressing components 200 can be set according to the requirements of each embodiment, and is not limited to the above two groups. For example, when the injection mold is one-out-one, the hot pressing component 200 can be set to one group accordingly, and when the injection mold is one-out-multiple, the hot pressing component 200 can be set to multiple groups accordingly. After the injection mold forms the product, the product is taken to the hot pressing device for residual glue at the sprue by a manipulator for direct hot pressing, thereby removing the residual glue at the sprue after the product is injected.

[0030] The machine 100 is a cubic structure as a whole, and the outer periphery of the machine 100 is provided with a mounting block for assembling it on a corresponding position or platform and a gripping portion for easy transportation. Any side or multiple sides of the machine 100 are provided with a control panel, a start-stop button, etc. for operation, and the inside of the machine 100 is provided with a hollow cavity, and the hollow cavity is used to assemble various electrical components, such as a controller, a power supply, etc. The controller is used to be electrically connected to the control panel, the start-stop button, the cushioning mechanism, the first driving mechanism 230, etc. A linear module is provided on the table of the machine 100 for enabling each fixing mechanism 210 to move linearly back and forth, and the linear module includes a slide rail 110 and a second driving mechanism 120 provided at a position corresponding to each fixing mechanism 210 on the machine 100, and the front and rear ends of the slide rail 110 are provided with a sensing element (such as a proximity shape, a travel switch) for sensing the fixing mechanism 210, and the sensing element and the second driving mechanism 120 are both electrically connected to the controller. The portion of the slide rail 110 located directly below the hot pressing mechanism 220 forms a hot pressing working position, and the portion of the slide rail 110 that is misaligned with the hot pressing mechanism 220 on the horizontal projection plane forms an upper / lower material position. The fixing mechanism 210 reciprocates on the slide rail 110 to switch between the hot pressing working position and the upper / lower material position. When the fixing mechanism 210 moves to the position directly below the hot pressing mechanism 220, it is located at the hot pressing working position, and when the fixing mechanism 210 moves out of the corresponding position directly below the hot pressing mechanism 220, it is located at the upper / lower material position. In the illustrated embodiment, the rear end of the slide rail 110 is defined as the hot pressing working position, and the front end is defined as the upper / lower material position, which is convenient for loading / unloading the mechanism. Long through holes 101 are also provided in parallel at positions close to each slide rail 110 on the machine 100. The second driving mechanism 120 is arranged in the hollow cavity in a manner parallel to the slide rail 110. The output shaft of the second driving mechanism 120 is connected to a connecting frame 130. The connecting frame 130 has a bracket 131 connected to each fixing mechanism 210. The bracket 131 passes through the elongated through hole 101 upwards and is connected to the fixing mechanism 210 slidably fitted on the slide rail 110. The second driving mechanism 120 can be driven by a motor, a cylinder, an oil cylinder, etc., and only one second driving mechanism 120 is provided. It is connected to each fixing mechanism 210 through the connecting frame 130 having multiple brackets 131, so that multiple fixing mechanisms 210 can move synchronously at the same time, prevent the problem of asynchronous movement speed, time, etc. of multiple fixing mechanisms 210, and save the number of second driving mechanisms 120.

[0031] The machine 100 is provided with a frame 140 for assembling the hot pressing mechanism 220, such as a gantry frame shown in the figure. The first driving mechanism 230 for driving the hot pressing mechanism 220 to rise and fall vertically is provided at the top frame of the gantry frame. The outer peripheral cover of the first driving mechanism 230 is provided with an outer cover 231. The first driving mechanism 230 can be driven by a motor, a cylinder, an oil cylinder, etc. The output shaft of the first driving mechanism 230 passes downward through the top frame of the gantry frame and is connected to the hot pressing mechanism 220. Safety gratings (not shown) are provided on the front side of the two side frames of the gantry frame, and the safety gratings are electrically connected to the controller. A guide assembly 150 for vertically guiding the hot pressing mechanism 220 is also provided between the machine 100 and the gantry. The guide assembly 150 includes a guide rod group 151 and a guide plate 152. The guide rod group 151 is composed of a plurality of guide rods, the lower end of which is connected to the machine 100 and the upper end is connected to the top of the frame 140. The lower surface of the guide plate 152 is connected to the top of the hot pressing mechanism 220 and the upper surface is connected to the output shaft of the first driving mechanism 230. The guide plate 152 is slidably assembled on the guide rod group 151 through a sliding sleeve. There are two first driving mechanisms 230, and the output shafts of the two first driving mechanisms 230 are respectively connected to the hot pressing mechanism 220. A position detection unit 153 (such as a proximity switch or a travel switch) for detecting the downward position of the guide plate 152 is also provided on the machine 100 below the guide plate 152. The position detection unit 153 is electrically connected to the controller to achieve downward travel limit of the hot pressing mechanism 220.

[0032] See also Figure 3 and Figure 4 The fixing mechanism 210 includes a bottom plate 211, a product positioning plate 212 detachably disposed on the bottom plate 211, and a vacuum adsorption unit. The bottom plate 211 is used to be directly or indirectly connected to the slider on the slide rail 110 through a connecting plate. The bottom plate 211 is provided with a groove, and the groove and the product positioning plate 212 enclose a closed cavity 213. The closed cavity 213 is connected to an external vacuum air source through a second vacuum adsorption channel 214.

[0033] The product positioning plate 212 is provided with a first vacuum adsorption channel 215, the inner end of the first vacuum adsorption channel 215 passes through the side of the product positioning plate 212 facing the product, and the outer end of the first vacuum adsorption channel 215 is connected to the closed cavity 213, so as to be connected to the vacuum gas source through the closed cavity 213 and the second vacuum adsorption channel. The second vacuum adsorption channel 214, the closed cavity 213 and the first vacuum adsorption channel 215 form the vacuum adsorption unit. The product positioning plate 212 is provided with a rough positioning block 212a at the position corresponding to at least one horizontal edge and at least one longitudinal edge of the product, and the inner side surface of the rough positioning block 212a is a guiding inclined surface inclined downward in the direction of the product; the product positioning plate 212 is provided with a positioning column 212b at the position corresponding to at least two through holes or grooves on the product; the product positioning plate 212 is provided with a first support platform 212c at each residual glue position of the water outlet, and the first support platform 212c is used to support the position corresponding to the residual glue position of the water outlet on the lower surface of the product.

[0034] Figure 3 and Figure 4 The product shown in the figure is a mobile phone middle frame 300, which is a plate-like structure as a whole. After injection molding, the mobile phone middle frame 300 includes a frame 310 and a middle plate 320 formed in the frame 310. Each side frame of the frame 310 has a plurality of residual glue at the water outlet. Specifically, each side frame has a shallow groove corresponding to the water outlet, and residual glue remains in the shallow groove. These residual glues remain in the shallow groove and cannot be completely removed by manual shearing. A larger through-hole 321 is provided at the center of the middle plate 320, and a plurality of through holes are also provided on the portion of the middle plate 320 where the through-hole 321 is not provided. The positioning column 212b is provided corresponding to at least two through holes. Corresponding to the mobile phone middle frame 300, a guiding boss 212d is protruded at the position corresponding to the through opening 321 on the product positioning plate 212, which is convenient for guiding and positioning the product when taking and placing the product; the product positioning plate 212 is also provided with a second support platform 212e for supporting at least a part of the area on the product, and the second support platform 212e is used to support the part of the middle plate 320 located on both sides of the through opening 321; the product positioning plate 212 is also provided with a boss 212f in contact with the lower side of the product corresponding to the two side parts of the middle plate 320, and the inner end of the first vacuum adsorption channel 215 passes through the boss 212f upward to adsorb the lower side of the middle plate 320.

[0035] The hot pressing mechanism 220 includes a pressing plate 221, a hot pressing head 222 disposed on the pressing plate 221 at a position corresponding to the residual glue at the nozzle on the product, and a heating unit for heating the hot pressing head 222. The pressing plate 221 and the hot pressing head 222 are both made of heat-conductive materials (such as copper), the upper end of the hot pressing head 222 is fixedly inserted into the pressing plate 221, and the lower end protrudes from the lower side of the pressing plate 221. The pressing plate 221 has a plurality of hollow assembly cavities, which are defined as cylindrical cavities in this embodiment, and at least one end of the assembly cavity passes through the pressing plate 221 to form an assembly port 221a. The heating unit includes a heating rod 223 assembled in the assembly cavity through an assembly port 221a and a temperature sensor 224 (e.g., a thermocouple) arranged on the pressing plate 221. The heating rod 223 is used to heat the pressing plate 221 to transfer heat to the hot pressing head 222 through the pressing plate 221. The temperature sensor 224 is electrically connected to the controller.

[0036] A heat insulating plate 225 is provided on the upper side of the pressure plate 221, and the heat insulating plate 225 is connected to the guide plate 152 at the top. The guide plate 152 has the function of slidingly cooperating with the guide rod group 151 and also has the function of a connecting plate, which is connected to the output end of the first driving mechanism 230.

[0037] The hot pressing device for residual glue at the nozzle of the utility model has at least the following beneficial effects: the product can be fixed by the fixing mechanism 210 arranged on the machine 100, and the first driving mechanism 230 drives the hot pressing mechanism 220 to move toward the product direction, so that the hot pressing head 222 heated by the heating unit flattens the residual glue by hot pressing, and removes the residual glue at the nozzle; compared with the method of manually removing the residual glue, the residual glue at all nozzles on the product can be removed by pressing down the pressing plate 221 and the hot pressing head 222 once, which improves efficiency and saves manpower; a first support platform 212c is arranged on the product positioning plate 212 at the position aligned with the residual glue, and the first support platform 212c is used to support the residual glue at the nozzle to prevent the corresponding position on the product from being deformed due to the large pressure of the hot pressing head 222, and at the same time provide a stable support The machine 100 is provided with a linear module to realize the switching of the fixing mechanism 210 between the hot pressing working position and the upper / lower material position. After the injection mold has molded the product, the injection molded product can be directly grabbed onto the fixing mechanism 210 of the upper / lower material position by a manipulator, and then the product can be moved to the hot pressing working position by the second driving mechanism 120, which is convenient for taking and placing the product and improving the automation of the hot pressing device. A vacuum adsorption unit (vacuum adsorption channel and closed cavity 213) is provided on the fixing mechanism 210, which can also adsorb the product when positioning the product horizontally, thereby further improving the product positioning effect. A plurality of fixing mechanisms 210 can realize reciprocating movement on their respective tracks through a connecting frame 130 and a second driving mechanism 120, thereby improving synchronization and reducing costs.

[0038] The above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A hot pressing device for residual glue at a nozzle, characterized in that: The invention comprises a machine platform and a hot pressing component, wherein the hot pressing component comprises a fixing mechanism arranged on the machine platform and used to fix the product, a hot pressing mechanism and a first driving mechanism used to drive the hot pressing mechanism to move toward the product to hot press the residual glue at the sprue, and the hot pressing mechanism comprises a pressing plate, a hot pressing head arranged on the pressing plate at a position corresponding to the residual glue at the sprue on the product and a heating unit used to heat the hot pressing head.

2. The hot pressing device for residual glue at the nozzle according to claim 1, characterized in that: The fixing mechanism comprises a product positioning plate and positioning posts provided on the product positioning plate corresponding to at least two holes or slots on the product; A first support platform is provided on the product positioning plate corresponding to each residual glue position at the sprue, and the first support platform is used to support the position corresponding to the residual glue position at the sprue on the lower surface of the product.

3. The hot pressing device for residual glue at the nozzle according to claim 2, characterized in that: The product is a plate-shaped structure, and a through hole is provided on the product; a second support platform for supporting at least a part of the product is provided on the product positioning plate, and a guide boss is provided on the product positioning plate at a position corresponding to the through hole; The product positioning plate is provided with a first vacuum adsorption channel, the inner end of the first vacuum adsorption channel penetrates a side of the product positioning plate facing the product, and the outer end of the first vacuum adsorption channel penetrates the product positioning plate to communicate with a vacuum air source.

4. The hot pressing device for residual glue at the nozzle according to claim 3, characterized in that: The fixing mechanism also includes a bottom plate arranged below the product positioning plate, the bottom plate is provided with a groove, the groove and the product positioning plate enclose a closed cavity, the outer end of the first vacuum adsorption channel passes through a side of the product positioning plate facing the groove to communicate with the closed cavity, and the closed cavity is connected to an external vacuum air source through a second vacuum adsorption channel.

5. The hot pressing device for residual glue at the nozzle according to claim 1, characterized in that: The pressing plate and the hot pressing head are both made of heat-conducting materials. The pressing plate has a plurality of hollow assembly cavities, and at least one end of the assembly cavity passes through the pressing plate to form an assembly port. The heating unit includes a heating rod assembled in the assembly cavity through the assembly port and a temperature sensor arranged on the pressing plate. The heating rod is used to heat the pressing plate so as to transfer heat to the hot pressing head through the pressing plate.

6. The hot pressing device for residual glue at a nozzle as claimed in claim 5, characterized in that: The hot pressing mechanism further includes a heat insulating plate disposed above the pressing plate, a connecting plate is connected above the heat insulating plate, and the connecting plate is connected to the output end of the first driving mechanism.

7. The hot pressing device for residual glue at a nozzle according to claim 1, characterized in that: The machine is provided with a frame, the first driving mechanism is installed on the top of the frame with its output shaft facing downward, the fixing mechanism of the hot pressing assembly is arranged on the machine directly below the frame, and the hot pressing mechanism is located directly above the fixing mechanism and connected to the output shaft of the first driving mechanism.

8. The hot pressing device for residual glue at a nozzle as claimed in claim 7, characterized in that: A guide assembly is also provided on the machine platform, and the guide assembly includes a guide rod group and a guide plate. The lower end of the guide rod group is connected to the machine platform, and the upper end is connected to the top of the frame. The lower surface of the guide plate is connected to the top of the hot pressing mechanism, and the upper surface is connected to the output shaft of the first driving mechanism, and the guide plate is slidably assembled on the guide rod group.

9. The hot pressing device for residual glue at a nozzle as claimed in claim 1, characterized in that: A linear moving module is also provided on the machine at a position corresponding to the fixing mechanism. The fixing mechanism is provided on the linear moving module so as to be able to move linearly back and forth. When the fixing mechanism moves to a position directly below the hot pressing mechanism, it is located at a hot pressing working position. When the fixing mechanism moves out of a corresponding position directly below the hot pressing mechanism, it is located at an upper / lower material position.

10. The hot pressing device for residual glue at a nozzle according to claim 9, characterized in that: The hot pressing components are limited to multiple groups; the linear moving module includes slide rails and second driving mechanisms corresponding to the fixing mechanisms of the multiple groups of hot pressing components; the fixing mechanisms are slidably assembled on the corresponding slide rails, the second driving mechanism is arranged in the hollow cavity of the machine in a manner parallel to the slide rails, and the output shaft of the second driving mechanism is connected to a connecting frame, and the connecting frame has a bracket connected to each fixing mechanism; an elongated through hole parallel to the slide rail is arranged at a position corresponding to each fixing mechanism on the machine, and the bracket is connected to the fixing mechanism after passing through the elongated through hole upward.