Three-dimensional hot-pressing forming machine for bags and suitcases

Abstract

The invention relates to a 3D hot-press forming machine for bags and suitcases, and belongs to the technical field of bag production, the 3D hot-press forming machine for bags and suitcases comprises a frame body assembly, the frame body assembly comprises a bottom plate, guide columns are mounted on the bottom plate, a partition plate is fixedly mounted between the guide columns, and a feeding and discharging assembly is fixedly mounted at the upper end of the partition plate; the pressing forming assembly comprises an upper movable plate and a lower movable plate, die holders are fixedly installed on the lower side of the upper movable plate and the upper side of the lower movable plate, an upper die and a lower die are connected to the die holders distributed up and down in a clamped mode respectively, and a heating assembly is installed at the lower end of the partition plate. Automatic hot-press forming is achieved, the hot-press forming efficiency is improved, the use safety is improved, the upper mold and the lower mold are clamped to the mold base through the clamping blocks, adsorption positioning is conducted through the first magnet and the second magnet, and the upper mold and the lower mold can be conveniently and rapidly replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of luggage production, in particular to a 3D hot pressing machine for luggage. Background Art

[0002] Luggage is a general term for various bags used to carry things, including general shopping bags, handbags, clutches, wallets, backpacks, shoulder bags, shoulder bags, waist bags and various trolley cases, etc. During the production and processing of luggage, some hard luggage, such as trolley cases, need to be hot-pressed to achieve the designed shape. During the hot-pressing operation of luggage, most of the raw materials are sheet-like, which are heated to soften them and then placed in a mold. The softened sheet material is pressed into the shape designed by the mold through the pressing of the upper mold and the lower mold. After cooling and shaping, the raw material maintains the designed shape. It is widely used in current plastic luggage, especially for luggage with 3D shape. Through hot-pressing, the outer side of the luggage is formed into a three-dimensional shape, which increases the aesthetics of the luggage.

[0003] However, most of the hot pressing machines currently used for bags and luggage are separate operations for heating and pressing. The operator places the sheet material into the heating device to soften it. After softening, the sheet material is taken out from the heating device and placed into the pressing device. The operation is relatively cumbersome. During the operation, the operator touches the heated sheet material, which is also prone to burn risks. When placing the softened sheet material, the operator's hand needs to be inserted into the pressing device, which poses a risk of crushing injuries and has low safety. In addition, during production, the 3D shapes and sizes of bags and luggage from different batches are different, and the upper and lower molds need to be replaced. Most of the current hot pressing machines are fixed with bolts. During assembly, the operation is relatively cumbersome, and disassembly and assembly are difficult. It is not convenient to replace quickly and is not easy to use. Summary of the Invention

[0004] In order to overcome the technical defects of the existing technology, the present invention provides a 3D stereo hot pressing molding machine for luggage, which has a high degree of automation, improves the safety of operators, and facilitates the rapid replacement of upper and lower molds.

[0005] The technical solution adopted by the present invention is: a 3D hot pressing forming machine for luggage, including a frame assembly, the frame assembly including a bottom plate, cylindrical guide columns are fixedly installed at the four corners of the upper surface of the bottom plate, a partition is fixedly installed in the middle position between the guide columns, a hollow hole is opened in the middle position of the partition, the upper end of the partition is diagonally fixedly installed with an upper mounting plate, the lower end of the partition is diagonally fixedly installed with a lower mounting plate, the upper end of the partition is fixedly installed with a loading and unloading assembly, and one end of the loading and unloading assembly extends to the outside of the partition. The upper mounting plate and the lower mounting plate are fixedly mounted with a pressing forming assembly, and the pressing forming assembly includes an upper movable plate and a lower movable plate, and the upper movable plate and the lower movable plate are both sleeved on the guide column, and a mold base is fixedly mounted on the lower side of the upper movable plate and the upper side of the lower movable plate, and an upper mold and a lower mold are respectively clamped on the mold bases distributed above and below. The lower end of the partition is located on both sides of the hollow hole and is symmetrically mounted with a heating assembly for heating and softening the raw material. When in use, the upper mold and the lower mold are first installed, and according to the design of the bag The upper mold and the lower mold are replaced with matching ones. During installation, the upper mold is clamped on the mold base above, and the lower mold is clamped on the mold base at the lower end, so as to facilitate quick assembly, and the gap between the upper mold and the lower mold forms a 3D stereoscopic figure. Then, the movable end of the upper and lower material components is pulled out to the outside of the partition, the sheet to be hot-pressed is placed on the upper and lower material components and fixed, and then the movable end of the upper and lower material components is pushed into the hollow hole position, the heating component is turned on, and the The sheet is heated to soften, and after heating, the movable end of the heating component retracts, and then the pressing and forming component is opened, so that the upper movable plate and the lower movable plate move in relative directions, and the upper mold and the lower mold press and form the softened sheet. After forming, it is cooled to harden the sheet, and after hardening, the upper movable plate and the lower movable plate move away from each other, and then the movable end of the upper and lower material components is pulled out to remove the formed sheet, which is convenient to operate and does not require multiple transfers of the sheet, thereby improving the efficiency of hot pressing and operating safety.

[0006] Preferably, a top plate is fixedly installed between the upper ends of the guide columns, and a refrigerator is fixedly installed on the upper end of the top plate, and the air outlet end of the refrigerator is respectively connected to the upper movable plate and the lower movable plate through a hose, and the upper end of the upper mounting plate is fixedly connected to the top plate, and the lower end of the lower mounting plate is fixedly connected to the bottom plate. After hot pressing, cold air is supplied by the refrigerator to cool the upper mold and the lower mold, thereby accelerating the cooling speed of the workpiece and improving the processing efficiency. The lower mounting plate and the upper mounting plate facilitate the fixed installation of the first oil cylinder and the second oil cylinder in the pressing and forming assembly.

[0007] Preferably, the loading and unloading assembly includes a bracket, the upper end of the bracket is fixedly installed with a track, and one end of the track extends to the upper end of the partition and is fixedly connected to the partition, the track is located on both sides of the hollow hole, and a movable frame is slidably installed on the track, and both ends of the movable frame are fixedly installed with double-headed electric guide rails, the double-headed electric guide rails are perpendicular to the track, and a storage plate is fixedly installed between the movable ends of the double-headed electric guide rails distributed front and back, and the track extending to the outside of the partition makes it convenient to pull the movable frame out to the outside of the partition for loading and unloading, and the double-headed electric guide rails make it convenient to adjust the distance between the storage plates on both sides to suit different types of luggage processing, and when loading and unloading, the sheets to be hot-pressed are placed on the storage plates on both sides and fixed, so as to facilitate moving the sheets to the hollow hole position for heating and pressing.

[0008] Preferably, spring clips for clamping and fixing the raw materials are fixedly installed in an array on the upper surface of the storage plate, and a handle is fixedly installed at one end of the movable frame. The handle can be used to pull the movable frame to move the workpiece out of the position of the partition for loading and unloading operations, and the spring clips can be used to fix both sides of the sheet to prevent it from falling when the sheet softens after heating.

[0009] The cam is fixedly mounted on the guide rails of the second movable plate, and the cam is slidingly mounted on the guide rails through the cam.

[0010] Preferably, a slot is provided on one side of the mold base, and a block that matches the slot is fixedly installed on one side of the upper mold and the lower mold. A first magnet is embedded and installed on the mold base between the slots, and a second magnet is fixedly installed on one side of the upper mold and the lower mold. The first magnet and the second magnet are adsorbed to each other, and the upper mold is quickly assembled to the mold base at the upper end and the lower mold is assembled to the mold base at the lower end through the block and the slot, thereby improving the ease of assembly. Moreover, through the first magnet and the second magnet, after assembly, the first magnet and the second magnet are adsorbed to each other, thereby improving the accuracy after assembly and facilitating automatic positioning.

[0011] Preferably, an air inlet pipe and an air outlet pipe are fixedly installed in the middle position of the mold base, and the air inlet pipe and the air outlet pipe both extend to one side of the first magnet, and a cavity is opened inside the upper mold and the lower mold, and one end of the air inlet pipe and the air outlet pipe are connected with the cavity. After hot pressing, during cooling, the refrigerator on the frame assembly is used to allow cold air to enter the cavity inside the upper mold and the lower mold through the air inlet pipe, and the upper mold and the lower mold are cooled by the cold air, thereby increasing the cooling speed of the workpiece.

[0012] Preferably, an air inlet hole and an air outlet hole are respectively provided on the second magnet, and the air inlet hole and the air outlet hole are both connected to the cavity, and the air inlet hole and the air outlet hole respectively correspond to the air inlet pipe and the air outlet pipe. Through the air inlet channel and the air outlet channel, after the upper mold and the lower mold are assembled, due to the positioning of the first magnet and the second magnet, the air inlet hole and the air outlet hole are respectively aligned with the lower ends of the air inlet pipe and the air outlet pipe, which is convenient for the circulation of gas and cooling.

[0013] Preferably, the heating component includes an electric slide rail, and a concave frame is fixedly installed between the output ends of the electric slide rails distributed front and back, and an electric heating plate is fixedly installed between the concave frames. When heating, the electric slide rail drives the concave frame to move, so that the electric heating plate moves to the bottom of the sheet for baking and heating. After heating and softening, the electric slide rail drives the concave frame to move toward the outside of the hollow hole, so that the electric heating plate moves to the outside of the hollow hole, which is convenient for automatic heating.

[0014] Preferably, a protective box is fixedly installed on the side away from the hollow hole between the front and rear distributed electric slide rails. One side of the protective box is an open structure, and the size of the inside of the protective box is the same as the size of the outside of the concave frame. Through the protective box, when the electric heating plate moves to the outside of the hollow hole, the electric heating plate is stored inside the protective box, which not only has the effect of heat preservation, but also improves safety during use.

[0015] The beneficial effects of the present invention are as follows: the sheet raw material to be processed is placed in the upper and lower material components through the upper and lower material components and pushed into the hollow hole position, and automatic heating is achieved through the automatic transverse movement of the electric heating plate in the heating component, and the upper mold and the lower mold are driven to rise and fall by the first oil cylinder and the second oil cylinder to achieve automatic hot pressing molding, with a high degree of automation, and no need to manually transfer the heated sheet, which not only improves the efficiency of 3D hot pressing molding of luggage, but also improves safety during use and is easy to operate, and the upper mold and the lower mold are connected to the mold base through the clamping block, and are adsorbed and positioned by the first magnet and the second magnet, which is convenient for rapid replacement of the upper mold and the lower mold, and convenient operation, and through the cavity and the refrigerator, cold air is circulated in the upper mold and the lower mold, thereby improving the cooling speed after hot pressing molding and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 Schematic diagram of the structure of the frame assembly of the present invention; Figure 4 It is a structural schematic diagram of the loading and unloading components in the present invention; Figure 5 It is a structural diagram of the position of the movable frame in the present invention; Figure 6 It is a schematic structural diagram of the entire press-molded component of the present invention; Figure 7 This is a schematic diagram of the exploded structure of the upper mold position of the present invention; Figure 8 This is a schematic diagram of the explosion structure of the lower mold position of the present invention; Figure 9 It is a schematic structural diagram of a partially cut-away upper mold in the present invention; Figure 10 Schematic diagram of the structure of the heating component in the present invention.

[0017] Explanation of the accompanying reference numerals: In the figure: 1. frame assembly; 101. bottom plate; 102. guide column; 103. partition; 104. hollow hole; 105. upper mounting plate; 106. lower mounting plate; 107. top plate; 108. refrigerator; 2. loading and unloading assembly; 201. bracket; 202. track; 203. movable frame; 204. double-head electric guide rail; 205. storage plate; 206. spring clip; 207. handle; 3. pressing assembly; 301. upper movable plate; 302. lower movable plate ; 303, mold base; 304, upper mold; 305, lower mold; 306, sleeve; 307, first oil cylinder; 308, second oil cylinder; 309, slot; 3010, block; 3011, first magnet; 3012, second magnet; 3013, air inlet pipe; 3014, air outlet pipe; 3015, cavity; 3016, air inlet hole; 3017, air outlet hole; 4, heating component; 401, electric slide rail; 402, concave frame; 403, electric heating plate; 404, protective box. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings: like Figures 1-10As shown, this embodiment provides a 3D stereo hot pressing forming machine for luggage, including a frame assembly 1, the frame assembly 1 includes a bottom plate 101, and cylindrical guide columns 102 are fixedly installed at the four corners of the upper surface of the bottom plate 101, and a partition 103 is fixedly installed in the middle position between the guide columns 102. A hollow hole 104 is opened in the middle position of the partition 103, and an upper mounting plate 105 is fixedly installed on the upper end of the partition 103 in a diagonal distribution, and a lower mounting plate 106 is fixedly installed on the lower end of the partition 103 in a diagonal distribution. The upper end of the partition 103 is fixedly installed with a loading and unloading assembly 2, and one end of the loading and unloading assembly 2 extends to the outside of the partition 103, and the upper mounting plate 105 and The lower mounting plate 106 is fixedly mounted with a pressing forming assembly 3, which includes an upper movable plate 301 and a lower movable plate 302. Both the upper movable plate 301 and the lower movable plate 302 are sleeved on the guide column 102. A mold base 303 is fixedly mounted on the lower side of the upper movable plate 301 and the upper side of the lower movable plate 302. The upper mold 304 and the lower mold 305 are respectively clamped on the upper and lower mold bases 303. The lower end of the partition 103 is located on both sides of the hollow hole 104 and is symmetrically mounted with a heating assembly 4 for heating and softening the raw materials. When in use, the upper mold 304 and the lower mold 305 are installed first, and then the upper mold 304 and the lower mold 305 are changed according to the design shape of the bag. Replace the matching upper mold 304 and lower mold 305. During installation, the upper mold 304 is clamped on the upper mold base 303, and the lower mold 305 is clamped on the lower mold base 303 to facilitate quick assembly. The gap between the upper mold 304 and the lower mold 305 forms a 3D stereoscopic figure. Then, the movable end of the upper and lower material components 2 is pulled out to the outside of the partition 103, and the sheet to be hot-pressed is placed on the upper and lower material components 2 and fixed. Then, the movable end of the upper and lower material components 2 is pushed into the hollow hole 104 position, and the heating component 4 is turned on. The movable ends of the symmetrically distributed heating components 4 move toward the hollow hole 104 position to press the sheet. It is heated to soften the sheet. After heating, the movable end of the heating component 4 retracts, and then the pressing and forming component 3 is opened, so that the upper movable plate 301 and the lower movable plate 302 move in relative directions, and the upper mold 304 and the lower mold 305 press and form the softened sheet. After forming, it is cooled to harden the sheet. After hardening, the upper movable plate 301 and the lower movable plate 302 move away from each other, and the distance between the upper mold 304 and the lower mold 305 increases. Then the movable end of the upper and lower material components 2 is pulled out to remove the formed sheet, which is convenient to operate and does not require multiple transfers of the sheet, thereby improving the efficiency of hot pressing and the safety of operation, and is easy to use.

[0019] As a technical optimization solution of the present invention, specifically Figure 3As shown, a top plate 107 is fixedly installed between the upper ends of the guide columns 102, and a refrigerator 108 is fixedly installed on the upper end of the top plate 107. The air outlet end of the refrigerator 108 is connected to the upper movable plate 301 and the lower movable plate 302 through a hose respectively, and the upper end of the upper mounting plate 105 is fixedly connected to the top plate 107, and the lower end of the lower mounting plate 106 is fixedly connected to the bottom plate 101. After hot pressing, cold air is supplied by the refrigerator 108 to cool the upper mold 304 and the lower mold 305, thereby accelerating the cooling speed of the workpiece and improving the processing efficiency. The refrigerator 108 can adopt a vortex tube cooling method to supply cold air and increase the corresponding speed of the cold air. The lower mounting plate 106 and the upper mounting plate 105 are used to facilitate the fixed installation of the first oil cylinder 307 and the second oil cylinder 308 in the pressing molding assembly 3, so that the upper movable plate 301 and the lower movable plate 302 move up and down along the guide column 102 during pressing.

[0020] As a technical optimization solution of the present invention, specifically Figure 4 and Figure 5 As shown, the loading and unloading assembly 2 includes a bracket 201, and a track 202 is fixedly installed on the upper end of the bracket 201, and one end of the track 202 extends to the upper end of the partition 103 and is fixedly connected to the partition 103. The track 202 is located on both sides of the hollow hole 104, and a movable frame 203 is slidably installed on the track 202. Both ends of the movable frame 203 are fixedly installed with a double-headed electric guide rail 204, and the double-headed electric guide rail 204 is perpendicular to the track 202. A storage plate 205 is fixedly installed between the movable ends of the double-headed electric guide rail 204 distributed front and back. By extending the track 202 to the outside of the partition 103, it is convenient to pull the movable frame 203 out to the outside of the partition 103 for loading and unloading, and the stability of the extended end of the track 202 is improved by the bracket 201, and the double-headed electric The guide rails 204 facilitate adjustment of the distance between the storage plates 205 on both sides to suit different types of bag processing. When loading and unloading, the sheets to be hot-pressed are placed on the storage plates 205 on both sides and fixed, so as to facilitate moving the sheets to the hollow hole 104 position for heating and pressing. The upper surface of the storage plate 205 is fixedly installed with spring clips 206 in an array for clamping and fixing the raw materials, and a handle 207 is fixedly installed at one end of the movable frame 203. The handle 207 facilitates pulling the movable frame 203 to facilitate moving the workpiece out of the position of the partition 103 for loading and unloading operations. When loading and unloading, the spring clips 206 facilitate fixing the two sides of the sheet to prevent the sheet from falling when it softens after heating.

[0021] As a technical optimization solution of the present invention, specifically Figure 6-Figure 9As shown, sleeves 306 are fixedly installed on the four corners of the upper movable plate 301 and the lower movable plate 302, and the upper movable plate 301 and the lower movable plate 302 are slidably sleeved on the guide column 102 through the sleeve 306. The upper movable plate 301 is diagonally fixedly installed with a first oil cylinder 307, and one side of the first oil cylinder 307 is fixedly connected to the lower mounting plate 106. The lower movable plate 302 is diagonally fixedly installed with a second oil cylinder 308, and the second oil cylinder 308 is fixedly connected to the upper mounting plate 105. The first oil cylinder 307 and the second oil cylinder 308 are installed in opposite states. The sleeve 306 is used to improve the stability of the upper movable plate 301 and the lower movable plate 302 when moving up and down, thereby improving the accuracy of the upper mold 304 and the lower mold 305 when pressing. Alignment effect, and the upper movable plate 301 and the lower movable plate 302 are driven to rise and fall by the first oil cylinder 307 and the second oil cylinder 308, so that the upper mold 304 and the lower mold 305 perform hot pressing and shaping on the sheet. The first oil cylinder 307 and the second oil cylinder 308 adopt synchronous hydraulic oil cylinders with consistent internal hydraulic pressure, thereby improving the synchronization of the upper movable plate 301 and the lower movable plate 302 during movement, and by installing them in opposite states, the upper movable plate 301 and the lower movable plate 302 can move in opposite directions or move synchronously in relative directions during movement. A card slot 309 is provided on one side of the mold base 303, and a card block 3010 that matches the card slot 309 is fixedly installed on one side of the upper mold 304 and the lower mold 305. The card block 3010 is located between the card slot 309 on the mold base 303. The first magnet 3011 is embedded and installed, and the second magnet 3012 is fixedly installed on one side of the upper mold 304 and the lower mold 305. The first magnet 3011 and the second magnet 3012 are attracted to each other, and the upper mold 304 is quickly assembled to the upper mold base 303 and the lower mold 305 is assembled to the lower mold base 303 through the clamping block 3010 and the clamping slot 309. After assembly, the first magnet 3011 and the second magnet 3012 are attracted to each other, thereby improving the accuracy after assembly and facilitating automatic positioning. The middle position of the mold base 303 is fixedly installed with an air inlet pipe 3013 and an air outlet pipe 3014, and the air inlet pipe 3013 and the air outlet pipe 3014 both extend to the first On one side of the magnet 3011, a cavity 3015 is provided inside the upper mold 304 and the lower mold 305. One end of the air inlet pipe 3013 and the air outlet pipe 3014 are connected to the cavity 3015. After hot pressing, during cooling, cold air is supplied to the air inlet pipe 3013 through the refrigerator 108 on the frame assembly 1, and the cold air enters the cavity 3015 inside the upper mold 304 and the lower mold 305 through the air inlet pipe 3013, so that the hot air is discharged through the air outlet pipe 3014. The upper mold 304 and the lower mold 305 are cooled by the cold air, thereby increasing the cooling speed of the workpiece, facilitating rapid cooling and shaping, and improving processing efficiency. The second magnet 3012 is respectively provided with an air inlet hole 3016 and an air outlet hole 3017.Both the air inlet hole 3016 and the air outlet hole 3017 are connected to the cavity 3015, and the air inlet hole 3016 and the air outlet hole 3017 correspond to the air inlet pipe 3013 and the air outlet pipe 3014, respectively. After the upper mold 304 and the lower mold 305 are assembled, the positioning of the first magnet 3011 and the second magnet 3012 aligns the air inlet hole 3016 and the air outlet hole 3017 with the lower ends of the air inlet pipe 3013 and the air outlet pipe 3014, respectively. This facilitates the flow of air, allowing cold air to enter the interior of the cavity 3015, thereby reducing the temperature.

[0022] As a technical optimization solution of the present invention, specifically Figure 10 As shown, the heating component 4 includes an electric slide rail 401, a concave frame 402 is fixedly installed between the output ends of the front and rear electric slide rails 401, and an electric heating plate 403 is fixedly installed between the concave frames 402. When heating, the electric slide rail 401 drives the concave frame 402 to move, so that the electric heating plate 403 moves to the bottom of the sheet for baking and heating. After heating and softening, the electric slide rail 401 drives the concave frame 402 to move to the outside of the hollow hole 104, so that the electric heating plate 403 moves to the outside of the hollow hole 104, thereby avoiding affecting the heat dissipation of the sheet. The pressure-sensitive shaping facilitates automatic heating. A protective box 404 is fixedly installed on the side away from the hollow hole 104 between the front and rear distributed electric slide rails 401. One side of the protective box 404 is an open structure, and the size of the inside of the protective box 404 is the same as the size of the outside of the concave frame 402. Through the protective box 404, when the electric heating plate 403 moves to the outside of the hollow hole 104, the electric heating plate 403 is stored in the inside of the protective box 404, which not only has the effect of heat preservation and reduces heat loss, but also improves safety during use and avoids the risk of burns.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. 3D hot pressing machine for luggage, characterized by: The invention comprises a frame assembly (1), wherein the frame assembly (1) comprises a bottom plate (101), cylindrical guide columns (102) are fixedly mounted on the four corners of the upper surface of the bottom plate (101), a partition (103) is fixedly mounted in the middle position between the guide columns (102), a hollow hole (104) is provided in the middle position of the partition (103), an upper mounting plate (105) is fixedly mounted on the upper end of the partition (103) in a diagonally distributed manner, a lower mounting plate (106) is fixedly mounted on the lower end of the partition (103), a loading and unloading assembly (2) is fixedly mounted on the upper end of the partition (103), and one end of the loading and unloading assembly (2) extends to the outside of the partition (103), and the A pressing and forming assembly (3) is fixedly mounted on the upper mounting plate (105) and the lower mounting plate (106), and the pressing and forming assembly (3) includes an upper movable plate (301) and a lower movable plate (302), and the upper movable plate (301) and the lower movable plate (302) are both sleeved on the guide column (102), and a mold base (303) is fixedly mounted on the lower side of the upper movable plate (301) and the upper side of the lower movable plate (302), and an upper mold (304) and a lower mold (305) are respectively clamped on the mold bases (303) distributed above and below, and a heating assembly (4) for heating and softening the raw material is symmetrically mounted on the lower end of the partition (103) on both sides of the hollow hole (104).

2. The 3D hot pressing machine for bags and cases according to claim 1, characterized in that: A top plate (107) is fixedly installed between the upper ends of the guide columns (102), and a refrigerator (108) is fixedly installed on the upper end of the top plate (107). The air outlet of the refrigerator (108) is connected to the upper movable plate (301) and the lower movable plate (302) through a hose, respectively. The upper end of the upper mounting plate (105) is fixedly connected to the top plate (107), and the lower end of the lower mounting plate (106) is fixedly connected to the bottom plate (101).

3. The 3D hot pressing machine for bags and luggage according to claim 1, characterized in that: The loading and unloading assembly (2) includes a bracket (201), a track (202) is fixedly installed on the upper end of the bracket (201), and one end of the track (202) extends to the upper end of the partition (103) and is fixedly connected to the partition (103), the track (202) is located on both sides of the hollow hole (104), and a movable frame (203) is slidably installed on the track (202), and double-headed electric guide rails (204) are fixedly installed at both ends of the movable frame (203), the double-headed electric guide rails (204) are perpendicular to the track (202), and a storage plate (205) is fixedly installed between the movable ends of the double-headed electric guide rails (204) distributed front and back.

4. The 3D hot pressing machine for bags and cases according to claim 3, characterized in that: Spring clips (206) for clamping and fixing raw materials are fixedly installed in an array on the upper surface of the storage plate (205), and a handle (207) is fixedly installed on one end of the movable frame (203).

5. The 3D hot pressing machine for bags and luggage according to claim 1, characterized in that: The four corners of the upper movable plate (301) and the lower movable plate (302) are fixedly mounted with sleeves (306), and the upper movable plate (301) and the lower movable plate (302) are slidably sleeved on the guide column (102) through the sleeves (306). The upper movable plate (301) is fixedly mounted with a first oil cylinder (307) in a diagonally distributed manner, and one side of the first oil cylinder (307) is fixedly connected to the lower mounting plate (106). The lower movable plate (302) is fixedly mounted with a second oil cylinder (308) in a diagonally distributed manner, and the second oil cylinder (308) is fixedly connected to the upper mounting plate (105), and the first oil cylinder (307) and the second oil cylinder (308) are installed in opposite states.

6. The 3D hot pressing machine for bags and luggage according to claim 1, characterized in that: A slot (309) is provided on one side of the mold base (303); a clamping block (3010) that matches the slot (309) is fixedly mounted on one side of each of the upper mold (304) and the lower mold (305); a first magnet (3011) is embedded and mounted between the slots (309) on the mold base (303); a second magnet (3012) is fixedly mounted on one side of each of the upper mold (304) and the lower mold (305); and the first magnet (3011) and the second magnet (3012) are attracted to each other.

7. The 3D hot pressing machine for bags and cases according to claim 6, characterized in that: An air inlet pipe (3013) and an air outlet pipe (3014) are fixedly installed in the middle position of the mold base (303), and the air inlet pipe (3013) and the air outlet pipe (3014) both extend to one side of the first magnet (3011), and a cavity (3015) is provided inside the upper mold (304) and the lower mold (305), and one end of the air inlet pipe (3013) and the air outlet pipe (3014) are connected to the cavity (3015).

8. The 3D hot pressing machine for bags and cases according to claim 7, characterized in that: An air inlet hole (3016) and an air outlet hole (3017) are respectively provided on the second magnet (3012), and the air inlet hole (3016) and the air outlet hole (3017) are both connected to the cavity (3015), and the air inlet hole (3016) and the air outlet hole (3017) respectively correspond to the air inlet pipe (3013) and the air outlet pipe (3014).

9. The 3D hot pressing machine for bags and cases according to claim 1, characterized in that: The heating assembly (4) comprises an electric slide rail (401), a concave frame (402) is fixedly installed between the output ends of the electric slide rail (401) distributed front and back, and an electric heating plate (403) is fixedly installed between the concave frames (402).

10. The 3D hot pressing machine for bags and cases according to claim 9, characterized in that: A protective box (404) is fixedly installed between the front and rear distributed electric slide rails (401) on a side away from the hollow hole (104). One side of the protective box (404) is an open structure, and the size of the interior of the protective box (404) is the same as the size of the outside of the concave frame (402).

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