Thermoforming machine with protection mechanism

Abstract

The utility model discloses a thermoforming machine with a protection mechanism, which belongs to the technical field of thermoforming machines and comprises a fixed lower die and a movable upper die. The movable upper die is installed on the top of the installation base, the fixed lower die is installed on the top of the installation base, a fixing frame is fixed on the back face of the installation base, two sets of hydraulic cylinders are fixed on the top of the fixing frame, and piston rods of the hydraulic cylinders penetrate through the fixing frame and are connected with a connecting frame. Before the protective cover is in contact with the mounting base, the protective cover is always located on the outer side of the fixed lower die and the outer side of the movable upper die by extruding the supporting springs, the protective cover is used for safety protection and achieves the purpose of surrounding protection, meanwhile, the protective cover moves downwards to enable the movable baffle located in the containing groove to tilt up through the fixing feet, and the movable baffle surrounds the outer side of the protective cover. The periphery of the fixed lower die can be conveniently protected after the protective cover moves upwards, double protection is provided, and the safety protection function of the thermoforming machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot press forming machine technical field, concretely is a kind of hot forming machine with protection mechanism. BACKGROUND

[0002] Hot press forming machine is a kind of forming machine, it is suitable for rubber, plastic industry polymer such as PVC, color master batch and so on Chemical raw materials mixing processing, batching test, to detect whether reach the color and quality required, can be used as the basis of batching before factory batch production.Placing plastic or rubber raw materials in mould, clamping between upper and lower electric heating plate, under the intelligent constant temperature of electric heating plate, exerting pressure, so that raw materials are formed.

[0003] In prior art, hot press forming machine uses upper and lower pressurizing mode to heat and press raw materials, raw materials are mutually fused after melting, then raw materials can be combined more compact after pressing, since extrusion is needed in operation process, raw materials are prone to overflow from mould to outside, under the action of pressure, it splashes to outside, and it constitutes threat to equipment around, the protective measure of traditional hot forming machine is insufficient, and safety accident is prone to occur. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of hot forming machine with protection mechanism, by the protective cover of setting in the outer side of movable upper mould is contacted with mounting base in advance with movable upper mould lower removal, the gap between fixed lower mould and movable upper mould is shielded, avoid raw materials extrusion and splash to outside, while protective cover is pressed down, movable baffle is turned to the outside of protective cover by fixed foot, it can be protected to the outside of fixed lower mould after protective cover is re-raised, avoid the expansion of workpiece internal residual heat after movable upper mould is raised, for protection, to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of hot forming machine with protection mechanism, comprising:

[0006] Fixed lower mould and movable upper mould;

[0007] The fixed lower mould is installed at the top of mounting base, the back of mounting base is fixed with fixed frame, the top of fixed frame is fixed with two groups of hydraulic cylinders, the piston rod of hydraulic cylinder penetrates fixed frame and is connected with connecting frame, the bottom of connecting frame is fixedly connected with the top of movable upper mould;

[0008] The protective cover is movably connected with the fixed box, four receiving grooves are formed around the top of the mounting base, and movable baffles are movably arranged in the receiving grooves and located outside the protective cover.

[0009] Preferably, a support plate is movably arranged in the fixed box, guide grooves are formed around the fixed box, connecting columns are fixed around the support plate, the connecting columns penetrate through the guide grooves and are fixedly connected with the inner wall of the protective cover, and a support spring is fixed to the top of the fixed box and connected with the support plate.

[0010] Preferably, four groups of through holes are formed in the support plate, and the support plate is slidably connected with the connecting frame through the through holes.

[0011] Preferably, a fixed seat is fixed to the bottom of the receiving groove, a groove is formed in the bottom of the movable baffle, and the fixed seat extends into the groove and is rotatably connected with the movable baffle through a movable shaft.

[0012] Preferably, an ejection spring is fixed to the bottom of the receiving groove and located below the fixed foot, and the side, away from the movable baffle, of the fixed foot is formed as an inclined surface.

[0013] Preferably, spring mounting grooves are formed in the top of the fixed box and the top of the support plate, and the support spring is arranged in the spring mounting grooves.

[0014] Preferably, the height of the movable baffle is higher than the height of the fixed lower mold, and the inside of the fixed lower mold and the inside of the movable upper mold are provided with electric heating plates.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The utility model discloses a movable upper mold is approached with fixed lower mold through the down -move of fixed frame that hydraulic cylinder drives, and the movable upper mold is approached with fixed lower mold through the down -move of fixed frame that hydraulic cylinder drives before this, the protective cover is contacted with the mounting base first, then the protective cover is always located the outside of fixed lower mold and movable upper mold through extruding support spring, is used for safety protection, plays the purpose of protection surrounding, the movable baffle in the receiving groove is tilted outward and is tilted outward through the down -move of protective cover and the fixed foot, is surrounded the outside of protective cover, is convenient for the protection of the surrounding of fixed lower mold after the up -move of protective cover, provides double -layered protection, improves the safety protection function of thermoforming machine.

[0017] 2、The utility model discloses a movable baffle is tilted outward and is tilted outward through the cooperation of ejection spring, makes movable baffle re -fall into the receiving groove, and it is convenient for the workpiece of fixed lower mold unloading. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the mounting base and the fixed lower mold of this utility model;

[0020] Figure 3 This is a cross-sectional three-dimensional structural diagram of the protective cover of this utility model;

[0021] Figure 4 This is a partial cross-sectional perspective view of the three-dimensional structure of the fixing box of this utility model;

[0022] Figure 5 This is a cross-sectional perspective view of the mounting base of this utility model.

[0023] The following are the numbered components in the diagram: 1. Fixed lower mold; 2. Movable upper mold; 3. Mounting base; 4. Fixing frame; 5. Hydraulic cylinder; 6. Connecting frame; 7. Protective cover; 8. Fixing box; 9. Storage slot; 10. Movable baffle; 11. Fixing foot; 12. Support plate; 13. Guide slot; 14. Connecting column; 15. Support spring; 16. Through hole; 17. Fixing seat; 18. Ejection spring; 19. Spring mounting slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figures 1-5 The thermoforming machine shown includes a protective mechanism, comprising:

[0026] Fixed lower mold 1 and movable upper mold 2;

[0027] The fixed lower mold 1 is installed on the top of the mounting base 3. A fixed frame 4 is fixed on the back of the mounting base 3. Two sets of hydraulic cylinders 5 are fixed on the top of the fixed frame 4. The piston rod of the hydraulic cylinder 5 passes through the fixed frame 4 and is connected to the connecting frame 6. The bottom of the connecting frame 6 is fixedly connected to the top of the movable upper mold 2.

[0028] The protective cover 7 is located outside the movable upper die 2, the top of the movable upper die 2 is fixed with a fixed box 8 located outside the connecting frame 6, the protective cover 7 is movably connected with the fixed box 8, the top of the mounting base 3 is provided with a receiving groove 9 around, and the inner cavity of the receiving groove 9 is movably provided with a movable baffle 10, the movable baffle 10 is located outside the protective cover 7, the inner side of the movable baffle 10 is fixed with a fixed foot 11, and the fixed foot 11 is movably in contact with the bottom of the protective cover 7;

[0029] The fixed frame 4 is driven to move downward by the hydraulic cylinder 5, so that the movable upper die 2 is close to the fixed lower die 1, and before this, the protective cover 7 first contacts the mounting base 3, and then the protective cover 7 is always located outside the fixed lower die 1 and the movable upper die 2 by extruding the supporting spring 15, so as to be safe and protected, and the purpose of protecting the surrounding is achieved, and meanwhile, the protective cover 7 is moved downward, the movable baffle 10 in the receiving groove 9 is lifted by the fixed foot 11, and surrounds the outside of the protective cover 7, so that the surrounding of the fixed lower die 1 is protected after the protective cover 7 is moved upward, double protection is provided, and the safety protection function of the thermoforming machine is improved.

[0030] As shown in the accompanying drawings: Figures 3-4

[0031] The inner cavity of the fixed box 8 is movably provided with a supporting plate 12, the fixed box 8 is provided with a guide groove 13 around, the supporting plate 12 is fixedly provided with a connecting column 14 around, one end of the connecting column 14 away from the supporting plate 12 penetrates through the guide groove 13 and is fixedly connected with the inner wall of the protective cover 7, the top of the inner cavity of the fixed box 8 is fixedly provided with a supporting spring 15, the bottom of the supporting spring 15 is fixedly connected with the supporting plate 12, the supporting plate 12 is supported by the supporting spring 15, the protective cover 7 is driven to move downward by the connecting column 14, and the movable upper die 2 is contacted with the fixed lower die 1, so that the protective cover 7 protects the movable upper die 2.

[0032] As shown in the accompanying drawings: Figure 4

[0033] Four groups of through holes 16 are formed in the supporting plate 12, the supporting plate 12 is slidably connected with the connecting frame 6 through the through holes 16, the supporting plate 12 is slidably arranged outside the connecting frame 6 through the through holes 16, and the supporting plate 12 is limited by the connecting frame 6, so that the supporting plate 12 is prevented from tilting and causing the protective cover 7 to tilt.

[0034] As shown in the accompanying drawings: Figure 5

[0035] The bottom of the inner cavity of the receiving groove 9 is fixedly provided with a fixed seat 17, the bottom of the movable baffle 10 is provided with a groove, the fixed seat 17 extends into the groove and is rotatably connected with the movable baffle 10 through a movable shaft, the movable baffle 10 is installed through the cooperation of the fixed seat 17, and the movable baffle 10 is conveniently rotated. ​​​

[0036] As shown in Figure 5 :

[0037] The bottom of the inner cavity of the storage groove 9 is fixed with an ejection spring 18, which is located below the fixed foot 11. The side of the fixed foot 11 away from the movable baffle 10 is provided as an inclined surface. Through the cooperation of the ejection spring 18, it is convenient to assist the movable baffle 10 to tilt outwardly, so that the movable baffle 10 falls into the storage groove 9 again, facilitating the unloading of the workpiece on the fixed lower mold 1.

[0038] Further, as shown in Figure 4 :

[0039] The top of the inner cavity of the fixed box 8 and the top of the support plate 12 are both provided with spring mounting grooves 19. The two ends of the supporting spring 15 are located in the spring mounting grooves 19. Through the setting of the spring mounting grooves 19, it is convenient to install the supporting spring 15, and at the same time, it avoids the supporting spring 15 from protruding outwardly after being extruded, which causes the shaking of the supporting spring 15, affects the stability of the support plate 12, and increases the moving space of the support plate 12.

[0040] In addition, as shown in Figure 5 :

[0041] The height of the movable baffle 10 is higher than the height of the fixed lower mold 1. The interiors of the fixed lower mold 1 and the movable upper mold 2 are both provided with electric heating plates. Through the limitation of the height of the movable baffle 10, it is convenient to shield the workpiece on the fixed lower mold 1, preventing the workpiece from spattering outwardly due to the expansion of residual heat. With the cooperation of the electric heating plate, the raw material can be quickly heated.

[0042] In specific use, the raw material is placed on the fixed lower mold 1, and then the connecting frame 6 driven by the hydraulic cylinder 5 moves downwardly to the movable upper mold 2. Subsequently, the protective cover 7 on the outer side of the movable upper mold 2 contacts the installation base 3 in advance. During the continuous downward movement of the movable upper mold 2, the support plate 12 is driven by the connecting column 14 to move upwardly in the fixed box 8 to extrude the supporting spring 15. At the same time, the protective cover 7 extrudes the fixed foot 11 before contacting the installation base 3, which drives the movable baffle 10 to overturn through the fixed foot 11, so that the movable baffle 10 is located on the outer side of the protective cover 7. Then the movable upper mold 2 and the fixed lower mold 1 heat and pressurize the raw material. Subsequently, the movable upper mold 2 and the fixed lower mold 1 are separated, and the protective cover 7 moves upwardly to expose the workpiece with residual heat. At this time, the protective cover 7 is withdrawn, and the movable baffle 10 is still located around the fixed lower mold 1 for safety protection, providing protection.

[0043] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermoforming machine with a protection mechanism, characterized in that, The utility model relates to a fixed lower mould (1) and movable upper mould (2) are included. The fixed lower mould (1) is installed on the top of the mounting base (3), the back of the mounting base (3) is fixed with the fixed frame (4), the top of the fixed frame (4) is fixed with two groups of hydraulic cylinders (5), the piston rod of the hydraulic cylinder (5) penetrates the fixed frame (4) and is connected with the connecting frame (6), the bottom of the connecting frame (6) is fixedly connected with the top of the movable upper mould (2). It further includes a protective cover (7) located outside the movable upper mould (2), the top of the movable upper mould (2) is fixed with a fixed box (8) located outside the connecting frame (6), the protective cover (7) is movably connected with the fixed box (8), a receiving groove (9) is formed around the top of the mounting base (3), a movable baffle (10) is movably arranged in the inner cavity of the receiving groove (9), the movable baffle (10) is located outside the protective cover (7), a fixed foot (11) is fixed to the inner side of the movable baffle (10), and the fixed foot (11) movably contacts the bottom of the protective cover (7). The inner cavity of the fixed box (8) movably arranges a support plate (12), guide grooves (13) are formed around the fixed box (8), connecting columns (14) are fixed around the support plate (12), one end of the connecting column (14) away from the support plate (12) penetrates the guide groove (13) and is fixedly connected with the inner wall of the protective cover (7), and a supporting spring (15) is fixed to the top of the inner cavity of the fixed box (8), and the bottom of the supporting spring (15) is fixedly connected with the support plate (12).

2. A thermoforming machine with a protection mechanism according to claim 1, characterized in that: Four groups of through holes (16) are formed in the support plate (12), and the support plate (12) is slidably connected with the connecting frame (6) through the through holes (16).

3. A thermoforming machine with a protection mechanism according to claim 2, characterized in that: A fixed seat (17) is fixed to the bottom of the inner cavity of the receiving groove (9), a groove is formed in the bottom of the movable baffle (10), the fixed seat (17) extends into the groove and is rotatably connected with the movable baffle (10) through a movable shaft.

4. A thermoforming machine with a protection mechanism according to claim 1, characterized in that: A ejection spring (18) is fixed to the bottom of the inner cavity of the receiving groove (9), the ejection spring (18) is located below the fixed foot (11), and the side of the fixed foot (11) away from the movable baffle (10) is provided as an inclined surface.

5. A thermoforming machine with a protection mechanism according to claim 1, characterized in that: Spring mounting grooves (19) are arranged on the top of the inner cavity of the fixed box (8) and the top of the support plate (12), and the two ends of the supporting spring (15) are located in the spring mounting grooves (19).

6. A thermoforming machine with a protection mechanism according to claim 2, characterized in that: The height of the movable baffle (10) is higher than the height of the fixed lower mould (1), and the inside of the fixed lower mould (1) and the movable upper mould (2) is provided with an electric heating plate.

7. A thermoforming machine with a protection mechanism according to claim 1, characterized in that: ​

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