A plastic globe hemispherical surface forming device

Abstract

A device for forming a hemispherical surface of a plastic globe comprises a lower mold body and an upper mold body, wherein the upper mold body is connected to a mold body driving mechanism, a forming concave portion is arranged at the bottom of the upper mold body, the top surface of the lower mold body is a platform surface, a platform opening is arranged on the platform surface, a forming convex portion is arranged in the platform opening, the forming convex portion is connected to a heating mechanism, the forming convex portion is connected to the lower mold body via a convex driving mechanism, forming convex particles are distributed on the outer surface of the forming convex portion, and when the forming convex portion pushes a plastic sheet placed on the platform surface into the forming concave portion, a gap is left between the top surface of the forming convex portion and the bottom surface of the plastic sheet between any forming convex particles. The advantages of the present invention are: the surface structure of the forming convex portion is changed, and during the stretching and forming process of the plastic sheet, any area of ​​the plastic sheet directly heated can maintain a good positional relationship with other areas, thereby avoiding deformation of the map pattern on the surface of the plastic sheet.

Description

Technical Field

[0001] The invention relates to the technical field of plastic globe manufacturing, in particular to a plastic globe hemispherical surface molding device. Background Art

[0002] There is a Chinese invention patent application with application number CN201911154968.9 and the name of "Globe Assembly Machine", which discloses a globe assembly machine, including a laminating and dispensing device, a first transfer device, a glue air-drying device, a second transfer device, a hot and cold laminating device, and a waste punching and drilling device. The shell and map of the northern and southern hemispheres are placed on the laminating and dispensing device for laminating. The first transfer device moves the pressed northern and southern hemispheres to the glue dispensing location of the laminating and dispensing device for dispensing and transfers the glued northern and southern hemispheres to the glue air-drying device. The glue air-drying device air-dries the glue on the northern and southern hemispheres. The second moving device transfers the air-dried northern and southern hemispheres to the shell hot and cold laminating device, and the maps on the northern and southern hemispheres are precisely laminated on the shell through thermal expansion and contraction. The second moving device transfers the laminated northern and southern hemispheres to the waste punching and drilling device for cutting. The globe assembly machine in this invention can assemble the shell and map of the northern and southern hemispheres, thereby improving production efficiency and the quality of the products produced. However, the pressing mechanism of the assembly machine directly presses the outer spherical surface printed with the map onto the hemispherical shell-shaped bladder. The map is originally a plane. If the map is directly pressed onto the hemispherical shell-shaped bladder, the outer spherical surface pattern after pressing will be deformed, part of the proportions will be distorted, and the map display effect will be unsatisfactory. If the map is first made into a hemispherical surface, the invention application does not disclose the production method, nor does it disclose the specific structure for implementing this method. In the prior art, if the map is to be made into a hemispherical surface, talcum powder needs to be added to the hemispherical processing surface to avoid pattern deformation caused by uneven heating of the map. This causes dust to fly in the production site, is not environmentally friendly, has low efficiency, and is inconvenient to clean the device. Therefore, the structure of the assembly machine needs to be further improved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a plastic globe hemispherical surface forming device with high outer spherical surface stretching efficiency, small deformation, good production effect and green environmental protection in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the present invention to solve the above technical problems is as follows: the molding device of the hemispherical surface of the plastic globe comprises a lower mold body and an upper mold body that can move up and down relative to the lower mold body, the upper mold body is connected to the mold body driving mechanism, a molding concave portion that can adapt to the hemispherical surface is arranged at the bottom of the upper mold body, the top surface of the lower mold body is a platform surface that can place a plastic sheet for making the hemispherical surface, a table opening is arranged on the platform surface and at a position corresponding to the molding concave portion, a molding convex portion that can adapt to the hemispherical surface is arranged in the table opening, and the molding convex portion is connected to a heating mechanism that can heat the outer surface of the molding convex portion. The molding convex part is connected with the lower mold body through the convex part driving mechanism. When the molding concave part covers the table opening and the molding convex part extends out of the table opening and into the molding concave part through the convex part driving mechanism, a spherical production cavity for producing a hemispherical surface is formed between the outer surface of the molding convex part and the inner wall of the molding concave part. The characteristic is that molding convex particles that can realize grid-like interval heating of the plastic sheet are distributed on the outer surface of the molding convex part. When the molding convex part pushes the plastic sheet placed on the platform surface into the molding concave part, a gap is left between the top surface of the molding convex part and the bottom surface of the plastic sheet between any molding convex particles.

[0005] As an improvement, a platform plate is arranged on the top of the lower mold body, the platform surface is the top surface of the platform plate, and the platform opening is a plate body through hole that penetrates the platform plate.

[0006] As a further improvement, there are two through holes in the plate body, there are two forming recesses, which respectively correspond to the respective through holes in the plate body, and there are two forming protrusions, which are respectively arranged in the respective through holes in the plate body.

[0007] A further improvement is that a cutting groove is arranged on the platform plate between the two through holes of the plate body, and a cutting knife that can move along the cutting groove is arranged in the cutting groove, the tip of the cutting knife extends out of the top opening of the cutting groove, and the cutting knife is connected to a cutting knife driving mechanism that can drive the cutting knife to move relative to the cutting groove.

[0008] As an improvement, a positioning body capable of plugging into a polar axis hole on the plastic sheet is arranged at the top end of the molding protrusion.

[0009] According to a further improvement, a groove for installing a positioning body is provided at the top of the molding convex portion, the bottom of the positioning body is connected to the groove via an elastic mechanism, the top surface of the positioning body extends out of the groove opening, the positioning body convex portion that can be plugged into the polar axis hole is located on the top surface of the positioning body, and a pressing mechanism that can press the top surface of the positioning body into the groove opening is provided on the bottom surface of the molding concave portion, and a connecting hole connecting the spherical surface manufacturing cavity and the outside of the lower mold body is provided at the bottom of the groove, and when the pressing mechanism presses the positioning body downward, the bottom surface of the positioning body closes the connecting hole.

[0010] Further improvement, the pressing mechanism includes a driving cylinder and a pressing sleeve, the driving cylinder is connected to the upper mold body, a recessed through hole is arranged in the middle of the molding recessed portion, the bottom end of the cylinder rod of the driving cylinder passes through the recessed through hole and is connected to the top of the pressing sleeve, and a pressing sleeve recess that can be inserted into the convex portion of the positioning body is arranged at the bottom of the pressing sleeve.

[0011] As an improvement, the upper mold body and the lower mold body are arranged on the same frame, the upper mold body is a movable plate that can move up and down along the guide column of the frame, the mold body driving mechanism is a mold body driving cylinder, the driving rod of the mold body driving cylinder is connected to the movable plate, a forming seat is arranged at the bottom of the movable plate, the forming recess is located on the bottom surface of the forming seat, a seat body through hole is arranged in the middle of the bottom surface of the forming seat, and the bottom end of the pressing mechanism is inserted into the seat body through hole.

[0012] Further improvement, the forming seat includes a first seat body and a second seat body, a concave cavity that can extend into the top of the second seat body is arranged at the bottom of the first seat body, threaded holes are distributed on the bottom surface of the first seat body around the concave cavity, a connecting ring is arranged on the bottom side wall of the second seat body, threaded through holes are distributed on the connecting ring, the second seat body is connected to the first seat body via the connecting ring, and a vacuum chamber is left between the inner wall of the concave cavity of the first seat body and the outer wall of the second seat body, and the vacuum chamber is connected to the vacuum port of the vacuum mechanism.

[0013] As an improvement, the convex driving mechanism includes a moving seat, a driving screw and a driving motor, the driving motor is transmission-connected to the driving screw, the moving seat can be moved up and down along the driving screw and is sleeved on the driving screw, and the formed convex portion can be detachably connected to the moving seat.

[0014] Compared with the prior art, the advantages of the present invention are: changing the surface structure of the molding convex part, and through the molding convex part surface structure with concave and convex settings, the area to be heated of the plastic sheet is divided into grid-like units and heated at intervals, the plastic sheet and the molding convex particles are directly heated at the joints, and the plastic sheet and the molding convex part surface without molding convex particles are indirectly heat-conducted, and the directly heated plastic sheet area is limited by the surrounding indirectly heat-conducting plastic sheet areas. Therefore, during the stretching molding process of the plastic sheet, any directly heated plastic sheet area can maintain a good positional relationship with other areas, avoiding deformation of the map pattern on the surface of the plastic sheet, overcoming the technical problem of uneven heating and pattern deformation of the plastic sheet caused by not adding talcum powder on the molding convex part surface in the prior art, and eliminating the use of talcum powder. It significantly improves the production environment and is green and environmentally friendly. After eliminating talcum powder, the production process is reduced and the production efficiency is correspondingly improved. The positioning of the plastic sheet is achieved through the positioning body and the pressing mechanism, which improves the production accuracy of the hemisphere. At the same time, the pressing mechanism can realize the automatic downward displacement of the positioning body, improve efficiency and reduce labor costs. The pressing mechanism closes the through hole passing through the cylinder rod above the vacuum chamber, and the positioning body can close the connecting hole at the bottom of the groove to achieve sealing in the spherical production cavity, so that the plastic sheet can be adsorbed on the molding concave part after stretching, and the plastic sheet can be automatically separated from the molding convex part after molding. It can also be preferred to produce the northern and southern hemispheres at the same time to further improve efficiency, and the molded plastic sheet can also be automatically cut by the cutting mechanism to facilitate the next step of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of an embodiment of the present invention;

[0016] Figure 2 for Figure 1 A stereogram at another angle;

[0017] Figure 3 yes Figure 2 A stereogram at another angle;

[0018] Figure 4 yes Figure 1 A three-dimensional view of the middle molded concave part covering the platform surface;

[0019] Figure 5 yes Figure 4 A top view of

[0020] Figure 6 yes Figure 5 A cross-sectional view along line AA when the middle pressing mechanism does not press the positioning body;

[0021] Figure 7 yes Figure 5 The cross section along line BB;

[0022] Figure 8 yes Figure 1 The structural breakdown diagram of

[0023] Fig. 9 yes Figure 6 A magnified view of part I;

[0024] Fig.10 yes Fig. 9 Schematic diagram of the structure when a plastic sheet is placed in the

[0025] Fig.11 yes Figure 7 Enlarged view of part II;

[0026] Fig.12 yes Figure 8 A magnified view of part III;

[0027] Fig.13 yes Fig. 9 A magnified view of section IV;

[0028] Fig.14 yes Fig.10 Enlarged view of the middle V section;

[0029] Fig.15 yes Fig.14 Enlarged view of section VI;

[0030] Fig.16 yes Figure 1 Schematic diagram of the distribution of molding convex particles on the surface of the middle molding convex part;

[0031] Fig.17 yes Fig.16 A schematic diagram of another distribution method of molding convex particles is shown in FIG. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below with reference to the accompanying drawings.

[0033] like Figures 1 to 15As shown, the molding device of the hemispherical surface of the plastic globe of this embodiment includes a lower mold body 1 and an upper mold body 2 that can move up and down relative to the lower mold body 1, the upper mold body 2 is connected to a mold body driving mechanism 21, and a molding recess 22 that can adapt to the hemispherical surface is arranged at the bottom of the upper mold body 2, and the top surface of the lower mold body 1 is a platform surface 11 on which a plastic sheet 8 for making the hemispherical surface can be placed, and a table opening 111 is arranged on the platform surface 11 and at a position corresponding to the molding recess 22, and a molding protrusion 3 that can adapt to the hemispherical surface is arranged in the table opening 111, and the molding protrusion 3 is connected to a heating mechanism that can heat the outer surface of the molding protrusion 3, and the molding protrusion 3 is heated by the heating mechanism. The convex driving mechanism 4 is connected to the lower mold body 1. When the molding concave portion 22 covers the table opening 111 and the molding convex portion 3 extends out of the table opening 111 and into the molding concave portion 22 through the convex driving mechanism 4, a spherical manufacturing cavity 23 for making a hemispherical surface is formed between the outer surface of the molding convex portion 3 and the inner wall of the molding concave portion 22. Molding convex particles 31 that can realize grid-like interval heating of the plastic sheet 8 are distributed on the outer surface of the molding convex portion 3. When the molding convex portion 3 pushes the plastic sheet 8 placed on the platform surface 11 into the molding concave portion 22, a gap is left between the top surface of the molding convex portion 3 and the bottom surface of the plastic sheet 8 between any molding convex particles 31. Grid-like interval heating refers to dividing the surface to be heated into grid-like units 9. One grid-like unit 9 is directly heated, and the front, back, left, and right units of the directly heated unit are not directly heated. Similarly, if one grid-like unit 9 is not directly heated, the front, back, left, and right units of the indirect heating unit are directly heated. This distribution method extends infinitely and is cut off at the circular outer contour corresponding to the hemisphere. Fig.16 and Fig.17 As shown in the figure, there are two common grid division methods. The heating mechanism can be an electric heating coil directly set in the groove of the forming protrusion 3, and the electric heating coil is connected to the power supply through a line. The heating mechanism can also use other heaters that can achieve heat conduction on the surface of the forming protrusion 3. The specific structure of the heating mechanism belongs to the known technology, so it will not be described in detail.

[0034] The molding protrusions 31 can be molded on the outer surface of the molding protrusion 3 at one time by molding, or by sandblasting on the surface of the molding protrusion 3. The specific method for making the molding protrusions 31 on the surface of the molding protrusion 3 belongs to the prior art. A suitable manufacturing method can be selected according to the specific material of the molding protrusion 3, so it will not be described in detail.

[0035] A platform plate 10 is arranged on the top of the lower mold body 1, the platform surface 11 is the top surface of the platform plate 10, and the table opening 111 is a plate body through hole that penetrates the platform plate 10. There are two plate body through holes, two molding recesses 22, which correspond to the respective plate body through holes, and two molding protrusions 3, which are respectively arranged in the respective plate body through holes. A cutting groove 101 is arranged on the platform plate 10 between the two plate body through holes, and a cutting knife 102 that can move along the cutting groove 101 is arranged in the cutting groove 101, and the tip of the cutting knife 102 extends out of the top opening of the cutting groove 101, and the cutting knife 102 is connected to a cutting knife driving mechanism 5 that can drive the cutting knife 102 to move relative to the cutting groove 101. The cutting knife driving mechanism 5 includes a cutting knife driving cylinder, a cutting knife mounting seat 51 for mounting the cutting knife 102, and the cutting knife 102. The bottom of the cutting knife mounting seat 51 is set on the plate body 103 of the lower mold body 1, and the side of the cutting knife mounting seat 51 is connected to the cylinder rod of the cutting knife driving cylinder. The cylinder rod pushes the cutting knife mounting seat 51 to move back and forth on the plate body 103, so that the tip of the cutting knife 102 moves back and forth along the cutting groove 101, cutting the middle part of the molded plastic sheet to form two independent plastic sheets with raised hemispherical surfaces.

[0036] A positioning body 32 that can be plugged into the polar axis hole on the plastic sheet is provided at the top of the molding protrusion 3. A groove 33 for installing the positioning body 32 is provided at the top of the molding protrusion 3. The bottom of the positioning body 32 is connected to the groove 33 via an elastic mechanism 34. The top surface of the positioning body 32 extends out of the opening of the groove 33. The positioning body protrusion 321 that can be plugged into the polar axis hole is located on the top surface of the positioning body 32. A pressing mechanism that can press the top surface of the positioning body 32 into the opening of the groove 33 is provided on the bottom surface of the molding concave portion 22. A connecting hole 35 that connects the spherical surface manufacturing cavity 23 and the outside of the lower mold body is provided at the bottom of the groove 33. When the pressing mechanism presses the positioning body 32 downward, the bottom surface of the positioning body 32 closes the connecting hole 35. The elastic mechanism 34 can be a spring. The pressing mechanism closes the connecting hole 35 to keep the plastic sheet 8 in the sealed cavity.

[0037] The pressing mechanism includes a driving cylinder 6 and a pressing sleeve 61. The driving cylinder 6 is connected to the upper mold body 2. A recessed through hole is arranged in the middle of the molding recessed portion 22. The bottom end of the cylinder rod 62 of the driving cylinder 6 passes through the recessed through hole and is connected to the top of the pressing sleeve 61. A pressing sleeve recess 611 which can be inserted into the positioning body protrusion 321 is arranged at the bottom of the pressing sleeve 61.

[0038] The upper mold body 2 and the lower mold body 1 are arranged on the same frame 7. The upper mold body 2 is a movable plate that can move up and down along the frame guide column 71. The mold body driving mechanism 21 is a mold body driving cylinder. The driving rod of the mold body driving cylinder is connected to the movable plate. A forming seat 20 is arranged at the bottom of the movable plate. The forming recess 22 is located on the bottom surface of the forming seat 20. A seat body through hole is arranged in the middle of the bottom surface of the forming seat 20, and the bottom end of the pressing mechanism is inserted into the seat body through hole. The molding seat 20 includes a first seat body 201 and a second seat body 202. A concave cavity that can extend into the top of the second seat body 202 is provided at the bottom of the first seat body 201. Threaded holes are distributed on the bottom surface of the first seat body 201 around the concave cavity. A connecting ring is provided on the bottom side wall of the second seat body 202. Threaded through holes are distributed on the connecting ring. The second seat body 202 is connected to the first seat body 201 via the connecting ring. A vacuum chamber 203 is left between the inner wall of the concave cavity of the first seat body 201 and the outer wall of the second seat body 202. The vacuum chamber 203 is connected to the air suction port of the vacuum mechanism. The specific structure of the vacuum mechanism belongs to the known technology, so it will not be described in detail. The vacuum chamber 203 is connected with the spherical surface manufacturing chamber 23. When the molding protrusion 3 lifts the plastic sheet to a certain height, the plastic sheet is adsorbed on the bottom surface of the molding concave portion 22 due to the air extraction effect in the vacuum chamber 203. In this way, when the molding protrusion 3 retreats, the plastic sheet that has produced the hemispherical surface will not retreat with the molding protrusion 3 but will be adsorbed in the molding concave portion 22. After the molding protrusion 3 retreats, the vacuuming stops, and the plastic sheet is separated from the molding concave portion 22, thereby realizing the automatic separation of the plastic sheet from the upper mold body and the molding protrusion 3. The pressing mechanism cooperates with the positioning body to position the plastic sheet 8. The pressing mechanism presses the positioning body 32 downward to cover the connecting hole 35, thereby sealing the spherical surface manufacturing chamber 23, ensuring the sealing effect of the spherical surface manufacturing chamber 23, and allowing the plastic sheet to be effectively adsorbed on the molding concave portion 22. A through hole through which the cylinder body of the driving cylinder 6 can pass is provided on the top plate of the frame 7. When the mold driving mechanism 21 lifts the upper mold body 2, the cylinder body of the driving cylinder 6 passes through the through hole and extends above the top plate.

[0039] The convex driving mechanism 4 includes a moving seat 41, a driving screw 42 and a driving motor 43. The driving motor 43 is transmission-connected to the driving screw 42. The moving seat 41 can be moved up and down along the driving screw 42 and is sleeved on the driving screw 42. The forming convex portion 3 can be detachably connected to the moving seat 41.

[0040] The convex driving mechanism 4, the mold driving mechanism 21, the heating mechanism, the pressing mechanism and the cutting blade driving mechanism 5 can be automatically controlled by the controller. The specific circuit structure of the controller belongs to the prior art and will not be described in detail.

[0041] Working principle: Place the plastic sheet on the platform surface, cover the upper mold body with the lower mold body, and the heated molding convex part rises to push the plastic sheet into the molding concave part of the upper mold body, thereby producing a hemispherical surface. Molding convex particles are distributed on the surface of the molding convex part. During the stretching molding, the bottom surface of the plastic sheet is attached to the molding convex particles for heating. The plastic sheet attached to the molding convex particles is directly heated, so the plastic sheet at this location has a greater tendency to deform. Since there is a gap between the molding convex surface and the plastic sheet between any molding convex particles, the plastic sheet at this location is not directly heated, and only receives a small amount of heat conduction from the plastic sheet at the directly heated location, and the deformation is small. In this way, the plastic sheet at the directly heated location can still remain in the original map pattern position when it is heated and stretched, and the overall map pattern on the plastic sheet can maintain a good display effect, avoiding proportional distortion and pattern deformation, eliminating the talcum powder used in the prior art to avoid uneven heating, improving the operating environment, and improving the molding efficiency accordingly.

Claims

1. A device for molding a hemispherical surface of a plastic globe, comprising a lower mold body (1) and an upper mold body (2) capable of moving up and down relative to the lower mold body (1), the upper mold body (2) being connected to a mold body driving mechanism (21), a molding recess (22) capable of adapting to the hemispherical surface being arranged at the bottom of the upper mold body (2), the top surface of the lower mold body (1) being a platform surface (11) capable of placing a plastic sheet (8) for making the hemispherical surface, a platform surface opening (111) being arranged on the platform surface (11) at a position corresponding to the molding recess (22), and a space capable of being formed in the platform surface opening (111) being arranged A molding convex portion (3) adapted to a hemispherical surface, the molding convex portion (3) being connected to a heating mechanism capable of heating the outer surface of the molding convex portion (3), the molding convex portion (3) being connected to a lower mold body (1) via a convex portion driving mechanism (4), when the molding concave portion (22) covers the table opening (111) and the molding convex portion (3) extends out of the table opening (111) and into the molding concave portion (22) via the convex portion driving mechanism (4), a spherical surface manufacturing cavity (23) for manufacturing a hemispherical surface is formed between the outer surface of the molding convex portion (3) and the inner wall of the molding concave portion (22), characterized in that: The outer surface of the molding protrusion (3) is provided with molding protrusions (31) capable of achieving grid-like interval heating of the plastic sheet (8); when the molding protrusion (3) pushes the plastic sheet (8) placed on the platform surface (11) into the molding concave portion (22), a gap is left between the top surface of the molding protrusion (3) and the bottom surface of the plastic sheet (8) between any molding protrusions (31); a positioning body (32) capable of plugging into the polar axis hole on the plastic sheet is arranged at the top end of the molding protrusion (3); the protrusion driving mechanism (4) comprises a moving seat (41), a driving screw (42) and a driving motor (43); the driving motor (43) is connected to the driving screw (42) in a transmission manner; the moving seat (41) can be mounted on the driving screw (42) so as to move up and down along the driving screw (42); and the molding protrusion (3) can be detachably connected to the moving seat (41).

2. The forming device according to claim 1, characterized in that: A platform plate (10) is arranged on the top of the lower mold body (1), the platform surface (11) is the top surface of the platform plate (10), and the platform opening (111) is a plate body through hole penetrating the platform plate (10).

3. The forming device according to claim 2, characterized in that: There are two plate body through holes, there are two forming recesses (22), which respectively correspond to the respective plate body through holes, and there are two forming protrusions (3), which are respectively arranged in the respective plate body through holes.

4. The forming device according to claim 3, characterized in that: A cutting groove (101) is arranged on the platform plate (10) between two plate body through holes, and a cutting knife (102) capable of moving along the cutting groove (101) is arranged in the cutting groove (101), the tip of the cutting knife (102) protrudes out of the top opening of the cutting groove (101), and the cutting knife (102) is connected to a cutting knife driving mechanism (5) capable of driving the cutting knife (102) to move relative to the cutting groove (101).

5. The forming device according to any one of claims 1 to 4, characterized in that: A groove (33) for mounting a positioning body (32) is arranged at the top end of the molding protrusion (3); the bottom of the positioning body (32) is connected to the groove (33) via an elastic mechanism (34); the top surface of the positioning body (32) extends out of the opening of the groove (33); a positioning body protrusion (321) that can be plugged into the polar axis hole is located on the top surface of the positioning body (32); a pressing mechanism that can press the top surface of the positioning body (32) into the opening of the groove (33) is arranged on the bottom surface of the molding concave portion (22); a connecting hole (35) that connects the spherical surface manufacturing cavity (23) and the outside of the lower mold body is arranged at the bottom of the groove (33); when the pressing mechanism presses the positioning body (32) downward, the bottom surface of the positioning body (32) closes the connecting hole (35).

6. The forming device according to claim 5, characterized in that: The pressing mechanism comprises a driving cylinder (6) and a pressing sleeve (61); the driving cylinder (6) is connected to the upper mold body (2); a recessed through hole is provided in the middle of the molding recessed portion (22); the bottom end of the cylinder rod (62) of the driving cylinder (6) passes through the recessed through hole and is connected to the top of the pressing sleeve (61); and a pressing sleeve recessed portion (611) capable of being inserted into the positioning body protrusion (321) is provided at the bottom of the pressing sleeve (61).

7. The forming device according to claim 6, characterized in that: The upper mold body (2) and the lower mold body (1) are arranged on the same frame (7); the upper mold body (2) is a movable plate that can move up and down along the frame guide column (71); the mold body driving mechanism (21) is a mold body driving cylinder; the driving rod of the mold body driving cylinder is connected to the movable plate; a forming seat (20) is arranged at the bottom of the movable plate; the forming recess (22) is located on the bottom surface of the forming seat (20); a seat body through hole is arranged in the middle of the bottom surface of the forming seat (20); and the bottom end of the pressing mechanism is inserted into the seat body through hole.

8. The forming device according to claim 7, characterized in that: The molding seat (20) comprises a first seat body (201) and a second seat body (202); a concave cavity capable of extending into the top of the second seat body (202) is arranged at the bottom of the first seat body (201); threaded holes are arranged on the bottom surface of the first seat body (201) around the concave cavity; a connecting ring is arranged on the bottom side wall of the second seat body (202); threaded through holes are arranged on the connecting ring; the second seat body (202) is connected to the first seat body (201) via the connecting ring; a vacuum chamber (203) is reserved between the inner wall of the concave cavity of the first seat body (201) and the outer wall of the second seat body (202); the vacuum chamber (203) is connected to the air suction port of the vacuum mechanism.

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