Demolding device for plastic uptake mold, using method of demolding device and plastic uptake mold

Abstract

The invention relates to the technical field of plastic processing and forming, and particularly discloses a demolding device for a plastic uptake mold, a using method of the demolding device and the plastic uptake mold, and the demolding device comprises an insert arranged at the bottom of an upper mold plate of the plastic uptake mold; a plurality of inserts are arranged in parallel; the insert comprises a U-shaped base, the two side walls of the U-shaped base are each rotationally provided with a molding module, each molding module is connected with the bottom of the U-shaped base through at least two adjusting assemblies, each adjusting assembly comprises two connecting plates, one end of each connecting plate is hinged to the top of the corresponding molding module, the other end of each connecting plate is slidably connected with the bottom of the U-shaped base, and the two connecting plates form a V shape. The two connecting plates are connected through a spring; the adjusting plate is arranged between the two connecting plates; the end part of the telescopic end of the second telescopic piece is hinged with the adjusting plate and is used for adjusting the lifting of the adjusting plate; and the push plate is used for applying downward thrust to the plastic sheet during demolding. The demolding device can be suitable for demolding of the plastic suction mold with the large-size insert.

Description

Technical Field

[0001] The invention relates to the technical field of plastic processing and forming, and in particular to a demoulding device for a blister mold, a use method thereof and the blister mold. Background Art

[0002] Thermoforming is a plastic processing technology. The main principle is to heat and soften the flat plastic hard sheet, then use vacuum adsorption to the mold surface, cool it down to form it, and then demold it.

[0003] Thermoforming mainly includes two modes: negative pressure adsorption and positive and negative pressure adsorption. Figure 1-Figure 2 As shown, the blister mold for positive and negative pressure adsorption mainly includes an upper mold pad, an upper mold plate, a push plate, a lower mold plate, a lower mold pad and a cylinder. Among them, the bottom of the upper mold plate is provided with an insert for plastic sheet molding, and the top of the lower mold plate is provided with a mold groove that matches the insert. When the mold is closed, the insert is placed in the mold groove, and the upper mold pad is provided with an adsorption mechanism for forming negative pressure, and the lower mold pad is provided with a clamping mechanism for forming positive pressure. Under the simultaneous action of the upper negative pressure and the lower positive pressure, the plastic sheet is pressed against a number of inserts. When demolding the above-mentioned blister mold for positive and negative pressure adsorption, the upper mold plate and the lower mold plate are first separated, and then the push plate is pushed downward by the cylinder to realize demolding of the plastic sheet attached to the insert. The demolding of the blister mold is realized by applying pressure on the top of the plastic sheet on the push plate. For the demolding of smaller inserts, it has a better demolding effect. However, when the insert is relatively large and the plastic sheet has a large contact area with the insert, the demolding effect is poor. Summary of the invention

[0004] The object of the present invention is to provide a demoulding device for a blister mold and a use method thereof, which can be suitable for demoulding a blister mold with a large-sized insert.

[0005] In addition, the present invention also provides a blister mold comprising the demoulding device.

[0006] The present invention is achieved through the following technical solutions: A demoulding device for a blister mold, comprising: The insert is arranged at the bottom of the upper mold plate of the blister mold; a plurality of inserts are arranged in parallel; the insert includes a U-shaped seat, and a molding module is rotatably arranged on each of the two side walls of the U-shaped seat, and the molding module is connected to the bottom of the U-shaped seat through at least two adjustment components, and the adjustment component includes two connecting plates, one end of the connecting plate is hinged to the top of the molding module, and the other end is slidably connected to the bottom of the U-shaped seat, and the two connecting plates form a "V" shape, and the two connecting plates are connected by a spring; An adjusting plate, arranged between the two connecting plates; A second telescopic member, the telescopic end of which is hinged to the adjustment plate, and is used to adjust the lifting and lowering of the adjustment plate; The push plate is used to apply downward thrust to the plastic sheet during demoulding.

[0007] In the prior art, a plurality of inserts arranged in a matrix are provided at the bottom of the upper template, and the size of the inserts is usually small, that is, after molding is completed, there is a small contact area between the plastic sheet and the inserts, and the plastic sheet can be quickly demolded by applying a downward thrust to the plastic sheet by a push plate. However, when the size of the inserts is large, after molding is completed, there is a large contact area between the plastic sheet and the inserts, and it is difficult to achieve rapid demolding of the plastic sheet by relying solely on the downward thrust applied to the plastic sheet by the push plate.

[0008] The present invention makes structural improvements to the insert, which is no longer an integral block structure, but includes two rotatable molding modules. When the demolding device is molded, the molding module is in a horizontal state, and the two molding modules on the same insert are abutted against each other, which can be used for molding the plastic sheet. When demolding, the molding module can be adjusted from a horizontal state to an inclined state by rotating the molding module. At this time, under the combined action of the rotation of the molding module and the thrust exerted by the push plate on the plastic sheet, the inclined setting of the molding module reduces the contact area between the molding module and the plastic sheet, which is beneficial for the push plate to realize rapid demolding of the plastic sheet.

[0009] In order to realize the rotation of the shaping module, the present invention is equipped with an adjustment component, and the opening and closing of the two connecting plates in the adjustment component are adjusted by the extension and contraction of the second telescopic member, thereby realizing the rotation of the shaping module. The adjustment component of the present invention can not only realize the smooth rotation of the shaping module, but also facilitate the reset of the shaping module, and has a simple structure, and can adjust the inclination angle of the shaping module according to actual needs, thereby improving the convenience of operation.

[0010] In summary, the demoulding device of the present invention can be applied to the demoulding of a plastic-inserting mold with a large size.

[0011] In a preferred embodiment, the push plate includes a frame, and multiple pressure plates are arranged between two symmetrical sides of the frame. When the blister mold is closed, the pressure plate is arranged on the outside of the insert; when demolding, the pressure plate applies a downward thrust to the plastic sheet, and the push plate is connected to the first telescopic member arranged on the blister mold.

[0012] In a preferred embodiment, an air inlet is provided on the pressing plate; strip holes are provided inside the pressing plate along its length direction, and a plurality of purge holes are provided on both sides of the strip holes inside the pressing plate. The purge holes are used to purge air flow toward the connecting surface between the molding module and the plastic sheet, and the strip holes connect the air inlet and the purge holes.

[0013] The purge holes provided in the present invention can purge air flow to the connection surface between the molding module and the plastic sheet before the pressure plate applies a downward thrust to the plastic sheet. On the one hand, the purge air flow can accelerate the cooling of the plastic sheet, and the plastic sheet with a lower temperature is more conducive to demolding. On the other hand, the purge air flow has a certain speed, which can pre-loosen the demolding of the plastic sheet to a certain extent, that is, the purge air flow can weaken the bonding force between the plastic sheet and the molding module, which is conducive to the subsequent demolding by applying downward pressure to the plastic sheet by the pressure plate.

[0014] In a preferred embodiment, the purge holes on both sides of the strip-shaped hole are arranged alternately.

[0015] Compared with the parallel arrangement, the above arrangement can increase the velocity of the air flow at the outlet of the purge hole, which is more conducive to the demoulding of the plastic sheet.

[0016] In a preferred embodiment, the purge hole is arranged obliquely, and the outlet end of the purge hole is the lower end.

[0017] The purge airflow with a certain inclination angle can apply a certain thrust to the top of the plastic sheet while blowing the airflow to the connection surface between the molding module and the plastic sheet, thereby improving the effect of the airflow in weakening the bonding force between the molding module and the plastic sheet.

[0018] In a preferred embodiment, a connecting piece is provided on the pressing plate, and the connecting piece is connected to the first telescopic piece.

[0019] In a preferred embodiment, it further comprises a guide plate arranged on the blister mold, wherein a guide rail is arranged on the guide plate; A guide block matching the guide rail is arranged on the outer wall of the push plate. When the push plate moves up and down, the guide block moves in the guide rail.

[0020] The above arrangement can improve the stability of the push plate in the up and down displacement.

[0021] In a preferred embodiment, the width of the adjustment plate gradually decreases from top to bottom, that is, the two vertical surfaces of the adjustment plate are inclined surfaces, and the inclination angle of the inclined surfaces has a certain degree of adaptability with the inclination of the connecting plate, which is more conducive to realizing the opening and closing degree between the two "V"-shaped connecting plates through the lifting and lowering of the adjustment plate.

[0022] A method for using a demoulding device comprises the following steps: When the demoulding device is closed, the molding module is in a horizontal state, and the two molding modules on the same insert are in contact with each other. At this time, the spring is in a natural state; When the demoulding device demoulds, the push plate moves downward to apply a downward thrust to the plastic sheet; at the same time, the adjustment plate is lowered through the second telescopic member, and the lowering of the adjustment plate increases the distance between the two connecting plates, thereby rotating the molding module to an inclined state until the plastic sheet is separated from the molding module.

[0023] A plastic blister mold including the demoulding device, further comprising an upper mold pad, an upper mold plate, a lower mold plate, a lower mold pad and a first telescopic member; The insert is arranged at the bottom of the upper mold plate, and the upper mold pad is arranged at the top of the upper mold plate; The fixed end of the first telescopic member is arranged on the upper mold pad, and the telescopic end of the first telescopic member passes through the upper mold plate and is connected to the push plate; The lower die pad is arranged at the bottom of the lower die plate, and the top of the lower die plate is provided with die grooves corresponding to the inserts one by one.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention improves the structure of large-sized inserts, sets two rotatable molding modules, and cooperates with adjustment components to realize the rotation of the molding modules. When the demolding device is in mold closing, the molding modules are in a horizontal state; when demolding, the molding modules can be adjusted from a horizontal state to an inclined state by rotating the molding modules. At this time, under the combined action of the rotation of the molding modules and the thrust exerted by the push plate on the plastic sheet, the inclined setting of the molding modules reduces the contact area between the molding modules and the plastic sheet, which is beneficial for the push plate to realize rapid demolding of the plastic sheet.

[0025] 2. The present invention can reduce the bonding force between the plastic sheet and the molding module by using the purge holes provided on the pressing plate to purge the connecting surface between the plastic sheet and the molding module before using the pressing plate to apply a downward thrust to the plastic sheet, thereby facilitating the subsequent use of the pressing plate to apply a downward thrust to the plastic sheet to complete demolding, thereby further accelerating the demolding of the plastic sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall structure of an existing blister mold; Figure 2 The figure is an exploded schematic diagram of an existing blister mold; Figure 3 It is a schematic diagram of the overall structure of the plastic blister mold of the present invention; Figure 4 It is an exploded schematic diagram of the blister mold of the present invention; Figure 5 It is a longitudinal sectional view of the blister mold of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged view of the middle A; Figure 7 It is a schematic diagram of the insert being unfolded during demoulding of the present invention; Figure 8 A top view of the push plate of the present invention; Fig. 9 It is a partial cross-sectional view of the pressing plate of the present invention.

[0027] Marks and corresponding parts names in the attached drawings: 1-upper mold pad; 2-upper mold plate; 3-push plate; 4-lower mold plate; 5-lower mold pad; 6-first telescopic member; 7-second telescopic member; 8-guide plate; 21-insert; 31-pressing plate; 32-connecting member; 33-air inlet; 34-frame; 41-mold groove; 42-guide block; 211-U-shaped seat; 212-spring; 213-adjusting plate; 214-connecting plate; 215-molding module; 311-strip hole; 312-purge hole. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. The schematic implementation mode of the present invention and its description are only used to explain the present invention and are not intended to limit the present invention. The embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0029] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those of ordinary skill in the art that these specific details do not have to be employed to practice the present invention. In other embodiments, in order to avoid confusing the present invention, known structures, materials or methods are not specifically described. The materials, instruments and reagents used in the following examples, unless otherwise specified, can be obtained from commercial sources. The technical means used in the examples, unless otherwise specified, are conventional means well known to those skilled in the art.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Embodiment 1: like Figure 1-Figure 2As shown, the existing positive and negative pressure suction plastic mold mainly includes an upper mold pad 1, an upper mold plate 2, a push plate 3, a lower mold plate 4, a lower mold pad 5 and a cylinder. Among them, the bottom of the upper mold plate 2 is provided with an insert 21 for plastic sheet molding, and the top of the lower mold plate 4 is provided with a mold groove 41 that matches the insert 21. When the mold is closed, the insert 21 is placed in the mold groove 41. The upper mold pad 1 is provided with an adsorption mechanism that forms negative pressure, and the lower mold pad 5 is provided with a clamping mechanism that forms positive pressure. Under the simultaneous action of the upper negative pressure and the lower positive pressure, the plastic sheet is tightly attached to the plurality of inserts 21.

[0032] like Figure 3-Figure 8 As shown, in order to realize the demoulding process of the blister mold with a large-area insert 21, this embodiment provides a demoulding device for the blister mold, including: The insert 21 is arranged at the bottom of the upper mold plate 2 of the blister mold; multiple inserts 21 are arranged in parallel, that is, multiple inserts 21 with larger sizes are arranged in parallel at the bottom of the upper mold plate 2. The insert 21 includes a U-shaped seat 211, and a molding module 215 is rotatably arranged on each of the two side walls of the U-shaped seat 211. In a specific case, a U-shaped groove is arranged on the side wall of the U-shaped seat 211, and the molding module 215 is a convex structure, and the two small ends of the convex structure are connected to the side walls of the U-shaped groove through a rotating shaft. The same molding module 215 is connected to the bottom of the U-shaped seat 211 through at least two adjustment components, and the adjustment components include two connecting plates 214. One end of the connecting plate 214 is hinged to the top of the molding module 215, and the hinge point is far away from the rotating connection between the molding module 215 and the U-shaped seat 211. The other end is slidingly connected to the bottom of the U-shaped seat 211. The two connecting plates 214 form a "V" shape, that is, the distance between the two connecting plates 214 tends to gradually decrease from top to bottom. The two connecting plates 214 are connected by a spring 212. When the spring 212 is stretched, the restoring force generated by it is used to achieve the reset of the two connecting plates 214.

[0033] The adjusting plate 213 is arranged between the two connecting plates 214; the distance between the two connecting plates 214 is adjusted by moving the adjusting plate 213 up and down, that is, when the adjusting plate 213 moves downward until the distance between the two connecting plates 214 is smaller than the width of the adjusting plate 213, the adjusting plate 213 opens the two connecting plates 214. At this time, the inclination angle of the connecting plate 214 becomes larger, and the change in the inclination angle of the connecting plate 214 drives the molding module 215 to rotate.

[0034] In a preferred case, the width of the adjustment plate 213 tends to gradually decrease from top to bottom; that is, the two vertical surfaces of the adjustment plate 213 are inclined surfaces, and the inclination angle of the inclined surfaces has a certain degree of adaptability with the inclination of the connecting plate 214, which is more conducive to realizing the opening and closing degree between the two "V"-shaped connecting plates 214 through the lifting and lowering of the adjustment plate 213.

[0035] The second telescopic member 7 has a telescopic end hinged to the adjustment plate 213 and is used to adjust the lifting and lowering of the adjustment plate 213 ; the second telescopic member 7 may specifically be a cylinder, a hydraulic cylinder, or the like.

[0036] The push plate 3 is used to apply a downward thrust to the plastic sheet during demoulding. In a specific case, the push plate 3 includes a frame 34, which is specifically a rectangular frame. A plurality of pressure plates 31 are arranged between two symmetrical sides of the frame 34. When the blister mold is closed, the pressure plate 31 is arranged on the outside of the insert 21; when demoulding, the pressure plate 31 applies a downward thrust to the plastic sheet, and the push plate 3 is connected to the first telescopic member 6 arranged on the blister mold; the first telescopic member 6 can specifically be a cylinder, a hydraulic cylinder, etc. In a specific implementation, a connecting member 32 is arranged on the pressure plate 31, and the connecting member 32 is connected to the first telescopic member 6.

[0037] In specific implementation, when the same shaping module 215 is connected to the bottom of the U-shaped seat 211 through two adjustment components, one second telescopic member 7 can be set corresponding to one adjustment component; when the same shaping module 215 is connected to the bottom of the U-shaped seat 211 through three or more adjustment components, in order to reduce the usage of the second telescopic member 7 and realize the synchronous control of multiple adjustment components, a strip plate is set at the telescopic end of the second telescopic member 7, and the strip plate is hinged to multiple adjustment plates 213.

[0038] In a preferred case, it also includes a guide plate 8 arranged on the blister mold, and a guide rail is arranged on the guide plate 8; A guide block 42 that matches the guide rail is provided on the outer wall of the push plate 3. When the push plate 3 moves up and down, the guide block 42 moves in the guide rail.

[0039] The method for using the demoulding device of this embodiment comprises the following steps: When the demoulding device is in mold closing, the molding module 215 is in a horizontal state, and the two molding modules 215 on the same insert 21 are in contact with each other. At this time, the spring 212 is in a natural state. When the demoulding device demolds, the push plate 3 moves downward to apply a downward thrust to the plastic sheet; at the same time, the adjustment plate 213 is lowered through the second telescopic member 7, and the lowering of the adjustment plate 213 increases the distance between the two connecting plates 214, thereby causing the molding module 215 to rotate to a tilted state until the plastic sheet is separated from the molding module 215.

[0040] In this embodiment, the structure of the large-sized insert 21 is improved by setting two rotatable molding modules 215 and cooperating with the adjustment components for realizing the rotation of the molding modules 215. When the demolding device is in mold closing, the molding modules 215 are in a horizontal state; when demolding, the molding modules 215 can be adjusted from a horizontal state to an inclined state by rotating the molding modules 215. At this time, under the combined action of the rotation of the molding modules 215 and the thrust exerted by the push plate 3 on the plastic sheet, the inclined setting of the molding modules 215 reduces the contact area between the molding modules 215 and the plastic sheet, which is beneficial for the push plate 3 to realize the rapid demolding of the plastic sheet.

[0041] Embodiment 2: This embodiment is based on embodiment 1. Figure 8-9 As shown, an air inlet hole 33 is provided on the pressing plate 31; a strip hole 311 is provided inside the pressing plate 31 along its length direction, and a plurality of purge holes 312 are provided on both sides of the strip hole 311 inside the pressing plate 31. The purge holes 312 are used to purge air flow toward the connecting surface between the molding module 215 and the plastic sheet, and the strip hole 311 connects the air inlet hole 33 with the purge hole 312.

[0042] In a preferred case, the purge holes 312 on both sides of the strip-shaped hole 311 are arranged alternately.

[0043] In a preferred case, the purge hole 312 is arranged obliquely, and the outlet end of the purge hole 312 is the lower end.

[0044] In this embodiment, before using the pressing plate 31 to apply a downward thrust to the plastic sheet, the purge hole 312 provided on the pressing plate 31 is used to purge the airflow on the connection surface between the plastic sheet and the molding module 215, thereby reducing the bonding force between the plastic sheet and the molding module, facilitating the subsequent use of the pressing plate 31 to apply a downward thrust to the plastic sheet to complete demolding, thereby further accelerating the demolding of the plastic sheet.

[0045] Embodiment 3: like Figure 1-Figure 9 As shown, a blister mold including the demoulding device as described in Example 1 or Example 2, further including an upper mold pad 1, an upper mold plate 2, a lower mold plate 4, a lower mold pad 5 and a first telescopic member 6; The insert 21 is arranged at the bottom of the upper mold plate 2, and the upper mold pad 1 is arranged at the top of the upper mold plate 2; an adsorption mechanism for forming negative pressure is arranged on the upper mold pad 1; The fixed end of the first telescopic member 6 is arranged on the upper die pad 1, and the telescopic end of the first telescopic member 6 passes through the upper die plate 2 and is connected to the push plate 3; the fixed end of the second telescopic member 7 is also arranged on the upper die pad 1; The lower die pad 5 is arranged at the bottom of the lower die plate 4, and the top of the lower die plate 4 is provided with a die groove 41 corresponding to the inserts 21. The lower die pad 5 is provided with a clamping mechanism for forming positive pressure, and both the adsorption mechanism and the clamping mechanism are prior art, and the negative pressure on the upper side of the plastic sheet and the positive pressure on the lower side act simultaneously to make the lower plastic sheet close to the plurality of inserts 21.

[0046] The working process of this embodiment is as follows: The plastic sheet to be processed is placed on the lower template 4, and then the upper template 2 is moved downward to achieve the mold closing of the upper template 2 and the lower template 4. At this time, the plastic sheet is pressed between the mold groove 41 and the insert 21, and the shaping of the plastic sheet is completed by heating.

[0047] After the shaping is completed, the upper template 2 is moved upward to open the upper template 2 and the lower template 4, and then the first telescopic member 6 is driven to extend to move the push plate 3 downward, and the second telescopic member 7 is driven to extend to rotate the shaping module 215, and the plastic sheet is demolded under the thrust of the push plate 3.

[0048] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0049] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like cited in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

Claims

1. A demoulding device for a blister mold, characterized in that: include: An insert (21) is arranged at the bottom of the upper mold plate (2) of the blister mold; a plurality of inserts (21) are arranged in parallel; the insert (21) comprises a U-shaped seat (211), and a molding module (215) is rotatably arranged on each of the two side walls of the U-shaped seat (211); the molding module (215) is connected to the bottom of the U-shaped seat (211) via at least two adjustment components, and the adjustment components comprise two connecting plates (214), one end of the connecting plate (214) is hinged to the top of the molding module (215), and the other end is slidably connected to the bottom of the U-shaped seat (211), the two connecting plates (214) form a "V" shape, and the two connecting plates (214) are connected via a spring (212); An adjustment plate (213) disposed between the two connecting plates (214); A second telescopic member (7), the telescopic end of which is hinged to the adjustment plate (213) and is used to adjust the lifting and lowering of the adjustment plate (213); The push plate (3) is used to apply a downward push to the plastic sheet during demoulding.

2. A demoulding device for a blister mold according to claim 1, characterized in that: The push plate (3) comprises a frame (34), and a plurality of pressure plates (31) are arranged between two symmetrical sides of the frame (34). When the blister mold is closed, the pressure plates (31) are arranged outside the insert (21); when the mold is released, the pressure plates (31) apply a downward thrust to the plastic sheet. The push plate (3) is connected to a first telescopic member (6) arranged on the blister mold.

3. A demoulding device for a blister mold according to claim 2, characterized in that: The pressing plate (31) is provided with an air inlet hole (33); the pressing plate (31) is provided with a strip hole (311) along its length direction; the pressing plate (31) is provided with a plurality of purge holes (312) on both sides of the strip hole (311); the purge holes (312) are used to purge air flow toward the connection surface between the molding module (215) and the plastic sheet; the strip hole (311) enables the air inlet hole (33) to communicate with the purge hole (312).

4. A demoulding device for a blister mold according to claim 3, characterized in that: The purge holes (312) on both sides of the strip-shaped holes (311) are arranged in a staggered manner.

5. A demoulding device for a blister mold according to claim 3, characterized in that: The purge hole (312) is arranged obliquely, and the outlet end of the purge hole (312) is the lower end.

6. A demoulding device for a blister mold according to claim 2, characterized in that: A connecting piece (32) is provided on the pressing plate (31), and the connecting piece (32) is connected to the first telescopic piece (6).

7. A demoulding device for a blister mold according to claim 1, characterized in that: It also includes a guide plate (8) arranged on the blister mold, wherein the guide plate (8) is provided with a guide rail; A guide block (42) that matches the guide rail is provided on the outer wall of the push plate (3); when the push plate (3) moves up and down, the guide block (42) moves inside the guide rail.

8. A demoulding device for a blister mold according to any one of claims 1 to 7, characterized in that: The width of the adjustment plate (213) tends to gradually decrease from top to bottom.

9. The method for using the demoulding device according to any one of claims 1 to 8, characterized in that: The following steps are involved: When the demoulding device is in mold closing, the molding module (215) is in a horizontal state, and two molding modules (215) on the same insert (21) are in contact with each other, and at this time, the spring (212) is in a natural state; When the demoulding device is demoulding, the push plate (3) is moved downward to apply a downward thrust to the plastic sheet; at the same time, the adjustment plate (213) is lowered through the second telescopic member (7), and the lowering of the adjustment plate (213) increases the distance between the two connecting plates (214), thereby causing the molding module (215) to rotate to a tilted state until the plastic sheet is separated from the molding module (215).

10. A blister mold comprising the demoulding device according to any one of claims 1 to 8, characterized in that: It also includes an upper die pad (1), an upper die plate (2), a lower die plate (4), a lower die pad (5) and a first telescopic member (6); The insert (21) is arranged at the bottom of the upper mold plate (2), and the upper mold pad (1) is arranged at the top of the upper mold plate (2); The fixed end of the first telescopic member (6) is arranged on the upper mold plate (1), and the telescopic end of the first telescopic member (6) passes through the upper mold plate (2) and is connected to the push plate (3); The lower die pad (5) is arranged at the bottom of the lower die plate (4), and a die groove (41) corresponding one-to-one to the insert (21) is arranged at the top of the lower die plate (4).

Images