Plastic uptake forming mold convenient to demold

Abstract

The utility model relates to the field of plastic uptake forming molds, in particular to a plastic uptake forming mold convenient to demold, which comprises a support frame used for supporting the whole plastic uptake forming mold, and the lower die is arranged in the supporting frame. According to the plastic uptake forming mold convenient to demold, through the arrangement of the supporting frame, the convex block, the lower mold, the groove and the demolding mechanism, after a heated and softened plastic hard sheet is adsorbed to the surface of the lower mold, the plastic hard sheet is connected with an external vacuum pump in cooperation with the connecting pipe, and the heated and softened plastic hard sheet is formed according to the outer surface of the lower mold through adsorption of the vacuum pump; after forming, cooling is conducted firstly, a first hydraulic cylinder switch below the lower mold is turned on after cooling, the lower mold is driven to descend, when the lower mold descends, the grooves in the periphery slide outside the protruding blocks in the supporting frame, the protruding blocks make contact with the connecting plate in a sliding mode, and the connecting plate turns over and tilts up in the grooves through the movable rods; and the upwarp of the formed plastic edge is touched through the overturning of the connecting plate, so that the demolding is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to blister forming mould field, concretely relates to a blister forming mould convenient for demoulding. BACKGROUND

[0002] Blister forming is one of thermoplastic hot forming methods, that is, sheet or plate material is clamped on the frame of a vacuum forming machine, heated and softened, and then adsorbed on the mold through the air passage of the mold edge by vacuum, and after short time cooling, the formed plastic product is obtained.

[0003] After retrieval, the utility model blister forming mold of a kind of practical new type, including mould body and mould seat, the installation slot is set in the top of mould seat both sides, the installation block is integrally formed in the bottom of mould body both sides, spring slot is set in the inside of mould seat both sides, plug rod is inserted in spring slot, spring is sleeved on the plug rod in the inside of spring slot, plug hole is set in the outside of installation block, the right end of plug rod is inserted in plug hole. The utility model is pulled outward by plug rod, then mould body is installed above mould seat, at this time, installation block can be clamped into installation slot, then plug rod is loosened, at this time, plug rod can be inserted into plug hole under the pushing of spring, at this time, the installation work that mould body is located on mould seat can be completed, and dismounting convenience can be greatly improved, so that it is more convenient to dismount when different moulds are used, time and labor are saved, and work efficiency is improved.

[0004] Most of the existing blister forming molds need to be demolded manually, and manual demolding often depends on the skills and experience of operators. If the operation is improper or the mold design is unreasonable, it may cause demolding difficulty, and when the product temperature is too high, the bonding with the mold contact surface is more firm, which will increase the difficulty of manual demolding. The blister forming mold in the above-mentioned comparative case also lacks demolding design, and manual demolding is required for such demolding, which is not only tedious, but also affects production efficiency.

[0005] Therefore, it is necessary to invent a blister forming mold convenient for demolding to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose lies in providing a kind of blister forming mould convenient to demould, heated softening plastic hard piece is shaped according to the outer surface of lower mould by vacuum pump adsorption, when forming, first cooling is carried out, after cooling, the first hydraulic cylinder switch under lower mould is opened, lower mould is driven to descend, while the groove around lower mould slides outside the protruding block inside support frame, let the protruding block sliding contact to connecting plate, so that connecting plate is overturned and is raised in groove using movable rod, and the plastic edge of formation is raised by the overturning touch of connecting plate, to realize convenient demoulding, to solve the blister forming mould of existing in the above background art, most need manual demoulding, manual demoulding often relies on the skill and experience of operator, if operation is improper or mould design is unreasonable, it can lead to demoulding difficulty, and when product temperature is too high, the difficulty of manual demoulding can be increased with the contact surface of mould bonding more firmly.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of blister forming mould convenient to demould, including support frame, for supporting entire blister forming mould;

[0008] Lower mould is arranged in the inside of support frame, for blister forming, the inside of the support frame is fixedly connected with protruding block around, the inside of the lower mould is all set up with mould groove, the inside of the mould groove is all set up with air hole, the lower end of the air hole is fixedly connected with connecting pipe, the connecting pipe is connected with external vacuum pump, the surface of the lower mould is all set up with recess around, the inside of the support frame is fixedly connected with base in the lower, the first hydraulic cylinder is fixedly arranged on the top of the base;

[0009] Demoulding mechanism is arranged in the inside of recess, and the demoulding mechanism includes movable rod and connecting plate;

[0010] Cooling demoulding assembly is arranged in the inside of support frame, for cooling, and the cooling demoulding assembly includes cooling box and spray head;

[0011] Top plate is fixedly connected on the top end of support frame, and the second hydraulic cylinder is fixedly arranged on the top of the top plate, and the upper end of the second hydraulic cylinder is fixedly connected with upper mould.

[0012] Preferably, the movable rod is rotatably connected to the inside of the recess, a torsion spring is provided on the outside of the movable rod, a fixed block is fixedly connected to the outside of the movable rod, and the connecting plate is fixedly connected to the connecting plate.

[0013] Preferably, the lower end of the lower mould is fixedly connected with the output end of the first hydraulic cylinder, and the recess around the lower mould is limitingly and slidably connected with the protruding block fixedly connected in the inside of the support frame.

[0014] Preferably, the cooling box is fixedly arranged above the left side of the base, a water pump is fixedly arranged outside the cooling box, a conveying pipe is fixedly connected to the other end of the water pump, and nozzles are fixedly arranged outside the conveying pipe.

[0015] Preferably, the nozzles are fixed on the front and rear sides of the support frame, and the nozzles are arranged obliquely.

[0016] Preferably, the upper mold is provided with top blocks below, sliding rods are fixedly connected to the upper mold around the top, and the sliding rods are slidingly connected to the top plate.

[0017] In the above technical solution, the technical effects and advantages of the utility model are provided.

[0018] 1. By arranging the support frame, the protrusions, the lower mold, the grooves and the demolding mechanism, the plastic in the lower mold can be demolded conveniently. When the heated and softened plastic sheet is adsorbed on the surface of the lower mold, the upper mold and the plurality of top blocks are pressed in the mold grooves in the lower mold, the connecting pipe is connected to the vacuum pump outside, the heated and softened plastic sheet is formed according to the outer surface of the lower mold by the vacuum pump adsorption, and the formed plastic is cooled first. After cooling, the first hydraulic cylinder switch below the lower mold is opened to drive the lower mold to descend. When the lower mold descends, the grooves around the lower mold slide outside the protrusions in the support frame, the protrusions slide to contact the connecting plate, the connecting plate is flipped up in the grooves by the movable rod, the formed plastic is flipped up by the flipping of the connecting plate, and thus the demolding is realized conveniently.

[0019] 2. By arranging the cooling and demolding assembly, when the plastic in the lower mold is formed, the plastic needs to be cooled in time to be demolded better. After the plastic in the lower mold is formed, the water pump switch is opened to convey the cooling liquid in the cooling box from the conveying pipe to the plurality of nozzles, the cooling liquid is sprayed on the surface of the formed plastic by the nozzles to accelerate the cooling, and the formed plastic is demolded more conveniently by the demolding mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the lower mold structure of the utility model;

[0023] Figure 3A sectional structure schematic view of the lower mold of the utility model;

[0024] Figure 4 A structure schematic view of the demolding mechanism of the utility model;

[0025] Figure 5 A structure schematic view of the cooling demolding assembly of the utility model;

[0026] Figure 6 A structure schematic view of the upper mold of the utility model.

[0027] Mark explanation:

[0028] 1, support frame; 2, protruding block; 3, lower mold; 4, mold groove; 5, air hole; 6, connecting pipe; 7, recess; 8, demolding mechanism; 801, movable rod; 802, torsion spring; 803, fixed block; 804, connecting plate; 9, base; 10, first hydraulic cylinder; 11, cooling demolding assembly; 1101, cooling box; 1102, water pump; 1103, conveying pipe; 1104, spray head; 12, top plate; 13, second hydraulic cylinder; 14, upper mold; 15, top block; 16, sliding rod. Specific implementation

[0029] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0030] The utility model provides a kind of blister forming mould of easy demolding as Figures 1-6 As shown in the figure, it includes support frame 1 for supporting the entire blister forming mould;

[0031] Lower mold 3 is arranged inside support frame 1, for blister forming, the inside of support frame 1 is uniformly fixedly connected with protruding block 2, the inside of lower mold 3 is uniformly provided with mold groove 4, the inside of mold groove 4 is uniformly provided with air hole 5, the lower end of air hole 5 is fixedly connected with connecting pipe 6, connecting pipe 6 is connected with external vacuum pump, the surface of the four around of lower mold 3 is uniformly provided with recess 7, the inside below support frame 1 is fixedly connected with base 9, and the upper side of base 9 is fixedly provided with first hydraulic cylinder 10;

[0032] Demolding mechanism 8 is arranged inside recess 7, and demolding mechanism 8 includes movable rod 801 and connecting plate 804;

[0033] Cooling demolding assembly 11 is arranged inside support frame 1, for cooling, and cooling demolding assembly 11 includes cooling box 1101 and spray head 1104;

[0034] The top plate 12 is fixedly connected to the upper end of the support frame 1, and a second hydraulic cylinder 13 is fixedly arranged above the top plate 12. The lower end of the second hydraulic cylinder 13 is fixedly connected with an upper mold 14. The upper mold 14 is pressed in the mold groove 4 in the lower mold 3 through a plurality of top blocks 15. The connecting pipe 6 is connected with the vacuum pump outside. The heated and softened plastic sheet is formed according to the outer shape of the lower mold 3 through the vacuum pump adsorption. After forming, cooling is firstly performed. After cooling, the first hydraulic cylinder 10 switch below the lower mold 3 is opened, and the lower mold 3 is driven to descend. When the lower mold 3 descends, the grooves 7 around the lower mold 3 slide outside the protrusions 2 inside the support frame 1, so that the protrusions 2 slide and contact the connecting plate 804, so that the connecting plate 804 is flipped and raised in the groove 7 by the movable rod 801 outside, and the formed plastic edge is flipped and raised by the connecting plate 804, so as to realize convenient demolding.

[0035] As shown in Figure 2 and Figure 3 , the movable rod 801 is rotatably connected inside the groove 7. The movable rod 801 is externally sleeved with a torsion spring 802. The movable rod 801 is fixedly connected with a fixed block 803 outside. The connecting plate 804 is fixedly connected with the connecting plate 804. When the first hydraulic cylinder 10 switch below the lower mold 3 is opened, the lower mold 3 is driven to descend. When the lower mold 3 descends, the grooves 7 around the lower mold 3 slide outside the protrusions 2 inside the support frame 1, so that the protrusions 2 slide and contact the connecting plate 804, so that the connecting plate 804 is flipped and raised in the groove 7 by the movable rod 801 and the torsion spring 802 outside, and the formed plastic edge is flipped and raised by the connecting plate 804, so as to realize convenient demolding. After the connecting plate 804 loses extrusion, the rebounding ability of the torsion spring 802 outside the movable rod 801 can flip the connecting plate 804 back to the original position.

[0036] As shown in Figure 1 and Figure 5 , the lower end of the lower mold 3 is fixedly connected with the output end of the first hydraulic cylinder 10. The grooves 7 around the lower mold 3 are limitingly and slidably connected with the protrusions 2 fixedly connected inside the support frame 1. The grooves 7 around the lower mold 3 slide on the protrusions 2 inside the support frame 1. Not only the stability of the lower mold 3 in the lifting process is improved, but also the connecting plate 804 is flipped to demold the formed plastic.

[0037] As shown in Figure 5As shown, the cooling box 1101 is fixedly arranged above the left side of the base 9, and the outer portion of the cooling box 1101 is fixedly provided with a water pump 1102, and the other end of the water pump 1102 is fixedly connected with a conveying pipe 1103, and the outer portion of the conveying pipe 1103 is fixedly provided with a plurality of spray heads 1104. After the plastic in the lower mold 3 is formed, the switch of the water pump 1102 is turned on, and the cooling liquid in the cooling box 1101 is conveyed to the plurality of spray heads 1104 through the conveying pipe 1103, and the cooling liquid is sprayed on the surface of the formed plastic through the spray heads 1104 to accelerate the cooling. When the plastic is cooled and formed, the demolding process is more convenient through the demolding mechanism 8.

[0038] As shown in Figure 1 and Figure 5 , the spray heads 1104 are fixed on the front and rear sides of the support frame 1, and the spray heads 1104 are arranged obliquely. The plurality of spray heads 1104 spray the cooling liquid on the front and rear sides of the lower mold 3, so as to accelerate the rapid cooling of the formed plastic and facilitate the subsequent demolding.

[0039] As shown in Figure 1 and Figure 6 , the upper mold 14 is provided below with a plurality of top blocks 15, and the upper mold 14 is fixedly connected above with a plurality of slide rods 16 which are slidably connected with the top plate 12. The top blocks 15 below the upper mold 14 press on the mold grooves 4 in the lower mold 3, so as to facilitate the rapid formation of the plastic on the surface of the lower mold 3. Meanwhile, the slide rods 16 above the upper mold 14 can improve the stability of the upper mold 14 during the lifting process.

[0040] The working principle of this utility model is as follows: First, connect the external power supply. Then, place the heated and softened plastic sheet on the surface of the lower mold 3. Next, turn on the second hydraulic cylinder 13 to push the upper mold 14 and the lower ejector block 15 to merge with the lower mold 3. At this time, the upper mold 14 is connected to an external vacuum pump through the connecting pipe 6. The vacuum pump uses the vacuum pump to suction the heated and softened plastic sheet through the connecting pipe 6 and the air hole 5 into the mold groove 4, thus molding the plastic. After molding, turn off the second hydraulic cylinder 13 and pull the upper mold 14 and the ejector block 15 out of the lower mold 3. Then, turn on the water pump 1102 to deliver the coolant inside the cooling tank 1101 from the delivery pipe 1103 to multiple sets of nozzles 1104. The coolant is then sprayed through the nozzles 1104. The plastic surface is cooled quickly. Once the plastic has cooled, the switch of the first hydraulic cylinder 10 below the lower mold 3 is turned on, causing the lower mold 3 to descend. As the lower mold 3 descends, the grooves 7 around it slide outside the protrusions 2 inside the support frame 1, allowing the protrusions 2 to slide into contact with the connecting plate 804. This causes the connecting plate 804 to flip and lift up within the grooves 7 using the movable rod 801. The flipping of the connecting plate 804 touches the edge of the plastic and lifts it up, thus facilitating demolding. The molded plastic is then removed, and the next heated and softened plastic sheet is placed on the lower mold 3 for vacuum forming. Finally, when the device is no longer in use, the external power is cut off. This completes the process of using the vacuum forming mold that facilitates demolding.

[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A blister forming mold facilitating demolding, characterized by: Including support frame (1) for supporting the whole blister forming mold; Lower mold (3) is arranged inside the support frame (1), which is used for blister forming, the inner periphery of the support frame (1) is fixedly connected with the protrusion (2), the inner periphery of the lower mold (3) is provided with the mold groove (4), the inner periphery of the mold groove (4) is provided with the air hole (5), the lower end of the air hole (5) is fixedly connected with the connecting pipe (6), the connecting pipe (6) is connected with the external vacuum pump, the periphery of the lower mold (3) is provided with the groove (7), the lower inside of the support frame (1) is fixedly connected with the base (9), the upper side of the base (9) is fixedly provided with the first hydraulic cylinder (10); The demolding mechanism (8) is arranged in the groove (7), and the demolding mechanism (8) comprises a movable rod (801) and a connecting plate (804); Cooling demolding assembly (11) is arranged in the inside of support frame (1), which is used for cooling, the cooling demolding assembly (11) comprises cooling box (1101) and spray head (1104); The top plate (12) is fixedly connected to the upper end of the support frame (1), and the second hydraulic cylinder (13) is fixedly arranged on the upper side of the top plate (12), and the lower end of the second hydraulic cylinder (13) is fixedly connected with the upper mold (14).

2. The blister forming mold facilitating demolding according to claim 1, characterized in that: The movable rod (801) is rotatably connected to the inside of the groove (7), the movable rod (801) is provided with a torsion spring (802) outside, the movable rod (801) is fixedly connected with a fixed block (803) outside, and the connecting plate (804) is fixedly connected with the connecting plate (804).

3. The blister forming mold facilitating demolding according to claim 1, wherein: The lower side of the lower mold (3) is fixedly connected with the output end of the first hydraulic cylinder (10), and the groove (7) provided around the lower mold (3) is limitingly and slidably connected with the protrusion (2) fixedly connected inside the support frame (1).

4. The blister forming mold facilitating demolding according to claim 1, wherein: The cooling box (1101) is fixedly arranged on the upper left side of the base (9), and the water pump (1102) is fixedly arranged on the outer side of the cooling box (1101), and the other end of the water pump (1102) is fixedly connected with the conveying pipe (1103), and the outer side of the conveying pipe (1103) is fixedly provided with the spray head (1104).

5. The blister forming mold facilitating demolding according to claim 1, wherein: The spray head (1104) is fixed on the front and rear sides of the support frame (1), and the spray head (1104) is inclined.

6. The blister forming mold facilitating demolding according to claim 1, wherein: The lower side of the upper mold (14) is provided with a top block (15), the upper side of the upper mold (14) is fixedly connected with a slide rod (16), and the slide rod (16) is slidably connected with the top plate (12).

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