Plastic suction mold convenient to demold

Abstract

The utility model discloses a plastic uptake mold convenient to demold, belongs to the technical field of plastic uptake molds, and aims to solve the technical problem that a plastic uptake mold is not easy to demold in the prior art. The plastic uptake mold convenient to demold comprises a mold base, a plastic uptake mold body is embedded in the mold base, a pair of vertical arms is vertically arranged on one side of the mold base, a U-shaped frame is rotationally installed between the top ends of the vertical arms, an electric push rod is assembled on the U-shaped frame, a vacuum suction cup is assembled at the telescopic end of the electric push rod, and a vacuum suction cup is assembled at the top end of the vacuum suction cup. A driving mechanism for driving the U-shaped frame to rotate is arranged on the vertical arm; mounting arms are horizontally fixed to the bottoms of the two end faces of the die base, the pair of mounting arms extend out of one side of the die base, and the pair of vertical arms are vertically fixed to the extending ends of the mounting arms. The plastic uptake mold convenient to demold has a demolding function, can drive a demolded workpiece to turn over, is convenient to pick up the workpiece, and is also convenient to polish and machine an exhaust hole in the bottom of the workpiece.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic blister moulds, and particularly relates to a plastic blister mould which is easy to demould. Background Art

[0002] Blister molds are molds used in blister production. After the plastic sheet is heated and softened, it is attached to the mold surface through vacuum or air pressure to form a blister product in the desired shape. It has many advantages such as high precision, strong wear resistance, efficient production, adjustable parameters, low cost, environmental protection and energy saving. It is widely used in various industries such as food packaging, pharmaceutical packaging, electronic product packaging, toy manufacturing, box liner manufacturing, etc.

[0003] With the development of the global economy and the improvement of people's living standards, the demand for packaging and products is increasing. In the application process of blister molds, it is found that after vacuum blister molding, the workpiece of the traditional blister mold is often tightly attached to the mold surface, which makes it difficult to demold and pick up, affecting the efficiency of the next blister processing. For this reason, the present application proposes a blister mold that is easy to demold. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a blister mold that is easy to demould, aiming to solve the technical problem that the blister mold is difficult to demould under the prior art.

[0005] Technical Solution

[0006] In order to solve the above technical problems, the utility model provides a blister mold that is easy to demold, including a mold base, in which a blister mold body is embedded, a pair of vertical arms are vertically arranged on one side of the mold base, a U-shaped frame is rotatably installed between the top ends of the pair of vertical arms, an electric push rod is installed on the U-shaped frame, the telescopic end of the electric push rod is equipped with a vacuum suction cup, and a driving mechanism for driving the U-shaped frame to rotate is provided on the vertical arm.

[0007] Preferably, mounting arms are horizontally fixed to the bottoms of both end surfaces of the mold base, a pair of the mounting arms extend out of one side of the mold base, and a pair of the vertical arms are vertically fixed to the extended ends of the mounting arms.

[0008] Preferably, a shaft is rotatably mounted between the top ends of a pair of vertical arms, both ends of the U-shaped frame are fixedly sleeved on the shaft, and a limiting support plate for horizontally supporting the U-shaped frame is fixed to the top end of the vertical arm.

[0009] Preferably, the driving mechanism includes a driving gear and a driven gear rotatably mounted on one of the vertical arms, the driving gear and the driven gear meshing with each other, the driven gear being coaxially connected to the shaft, a bracket being fixed on the vertical arm, a driving motor being mounted on the bracket, and a driving shaft of the driving motor being coaxially connected to the driving gear.

[0010] Preferably, the radius of the driving gear is smaller than the radius of the driven gear.

[0011] Preferably, a cavity is provided between the blister mold and the inner bottom wall of the mold base, a plurality of exhaust holes are provided on the bottom wall of the blister mold, an exhaust pipe and an air blowing pipe connected to the cavity are provided at the bottom of the side wall of the mold base, and valve bodies are installed on the exhaust pipe and the air blowing pipe.

[0012] Preferably, a boss embedded in the mold base is provided on the top of the outer peripheral wall of the blister mold, and a pressure frame for limiting the boss is connected to the top of the mold base with bolts.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model is provided with an exhaust pipe and an air blowing pipe, and the exhaust pipe and the air blowing pipe are connected to the suction device and the blowing device respectively. During the blister forming process, the exhaust pipe cooperates with the suction device to exhaust air, and the valve body on the air blowing pipe is closed, so that a negative pressure is generated in the cavity and the blister forming mold, and the sheet material pressed on the top of the blister forming mold and heated is blister formed. During the demoulding process, the air blowing pipe cooperates with the air blowing device to blow air, and the valve body on the exhaust pipe is in a closed state. Through blowing, the workpiece formed by blister forming in the blister forming mold is separated from the inner wall of the blister forming mold, and the workpiece formed by blister forming can be directly taken out, which is conducive to demoulding.

[0016] The utility model is characterized in that the U-shaped frame and the vacuum suction cup are arranged, the driving motor is started to drive the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the U-shaped frame to rotate toward the plastic suction mold body, and keeps it horizontal under the support limit of the limit support plate. At this time, the vacuum suction cup is under the electric push rod, and the electric push rod is started to push the vacuum suction cup to contact and adsorb the workpiece formed in the plastic suction mold body, and then the electric push rod contracts to drive the workpiece to separate from the plastic suction mold body, and then the U-shaped frame is driven in the reverse direction to flip, and the workpiece is flipped accordingly, realizing automatic demoulding. The flipped workpiece is convenient for picking up and is also convenient for grinding the air extraction hole at the bottom of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the U-shaped frame in the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the mold base of the utility model;

[0021] Figure 4 It is a structural diagram of the driving mechanism in the utility model.

[0022] The marks in the accompanying drawings are: 1. mold base; 2. blister mold body; 3. exhaust pipe; 4. blow pipe; 5. valve body; 6. pressure frame; 7. mounting arm; 8. vertical arm; 9. U-shaped frame; 10. vacuum suction cup; 11. electric push rod; 12. driving mechanism; 13. limit support plate; 14. shaft; 15. cavity; 16. exhaust hole; 17. boss; 18. driving gear; 19. driven gear; 20. bracket; 21. driving motor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] This embodiment provides a blister mold that is easy to demould, and its structural diagram is as follows Figure 1-Figure 4 As shown, the mold base 1 includes a mold base 1, a blister mold body 2 is embedded in the mold base 1, a cavity 15 is provided between the blister mold body 2 and the bottom wall of the mold base 1, a plurality of exhaust holes 16 are provided on the bottom wall of the blister mold body 2, and an exhaust pipe 3 and an air blowing pipe 4 communicating with the cavity 15 are provided at the bottom of the side wall of the mold base 1. A valve body 5 is installed on the exhaust pipe 3 and the air blowing pipe 4. The exhaust pipe 3 and the air blowing pipe 4 are connected to the suction equipment and the blowing equipment respectively. During the blister process, the exhaust pipe 3 is equipped with a valve body 5. The suction equipment is combined to draw air, and the valve body 5 on the blowing pipe 4 is closed, generating negative pressure in the cavity 15 and the blister mold 2, and the sheet material pressed on the top of the blister mold 2 and heated is blister-formed. During the demoulding process, the blowing pipe 4 cooperates with the blowing equipment to blow air, and the valve body 5 on the exhaust pipe 3 is in a closed state. By blowing, the workpiece formed by blistering in the blister mold 2 is separated from the inner wall of the blister mold 2, and the workpiece formed by blistering can be directly taken out, thereby facilitating demoulding.

[0025] Furthermore, a boss 17 embedded in the mold base 1 is provided on the top of the outer peripheral wall of the blister mold body 2 , and a pressure frame 6 for limiting the position of the boss 17 is bolted to the top of the mold base 1 to limit and fix the blister mold body 2 .

[0026] In a further embodiment, a pair of vertical arms 8 are vertically provided on one side of the mold base 1. Specifically, mounting arms 7 are horizontally fixed to the bottom of both end surfaces of the mold base 1. The pair of mounting arms 7 extend out of one side of the mold base 1, and the pair of vertical arms 8 are vertically fixed to the extended ends of the mounting arms 7. A U-shaped frame 9 is rotatably installed between the top ends of a pair of vertical arms 8, and an electric push rod 11 is installed on the U-shaped frame 9. The telescopic end of the electric push rod 11 is equipped with a vacuum suction cup 10. A driving mechanism 12 for driving the U-shaped frame 9 to rotate is provided on the vertical arm 8. After the blister is completed, the driving mechanism 12 is used to drive the U-shaped frame 9 to rotate toward the blister mold 2, so that the vacuum suction cup 10 is under the electric push rod 11. The electric push rod 11 is started to push the vacuum suction cup 10 to contact and adsorb the workpiece formed in the blister mold 2, and then the electric push rod 11 contracts to drive the workpiece out of the blister mold 2, and then the U-shaped frame 9 is driven in the reverse direction to flip, and the workpiece is flipped accordingly to achieve automatic demoulding. The flipped workpiece is convenient for picking up and is also convenient for grinding the air exhaust hole 16 at the bottom of the workpiece.

[0027] In this embodiment, a shaft 14 is rotatably mounted between the top ends of a pair of vertical arms 8 , both ends of the U-shaped frame 9 are fixedly sleeved on the shaft 14 , and a limiting support plate 13 is fixed to the top end of the vertical arm 8 for horizontally supporting the U-shaped frame 9 .

[0028] Furthermore, the drive mechanism 12 includes a drive gear 18 and a driven gear 19 rotatably mounted on one of the vertical arms 8. The drive gear 18 and the driven gear 19 mesh with each other, and the driven gear 19 is coaxially connected to the shaft 14. A bracket 20 is fixed to the vertical arm 8, and a drive motor 21 is mounted on the bracket 20. The drive shaft of the drive motor 21 is coaxially connected to the drive gear 18. When the drive motor 21 is started, the drive gear 18 rotates, and the drive gear 18 rotates the driven gear 19, which in turn drives the U-shaped frame 9 to rotate. The radius of the drive gear 18 is smaller than the radius of the driven gear 19, which facilitates driving the U-shaped frame 9 to flip.

[0029] Working principle: When in use, the exhaust pipe 3 and the blowing pipe 4 are connected to the suction device and the blowing device respectively. During the blister forming process, the exhaust pipe 3 cooperates with the suction device to exhaust air, and the valve body 5 on the blowing pipe 4 is closed, generating negative pressure in the cavity 15 and the blister mold 2, and the sheet material pressed on the top of the blister mold 2 and heated is blister formed. During the demoulding process, the blowing pipe 4 cooperates with the blowing device to blow air, and the valve body 5 on the exhaust pipe 3 is in a closed state. By blowing air, the workpiece blister formed in the blister mold 2 is separated from the inner wall of the blister mold 2. At the same time, the drive motor 21 is started to drive the drive gear 18 to rotate The driving gear 18 drives the driven gear 19 to rotate, and the driven gear 19 drives the U-shaped frame 9 to rotate toward the blister mold 2, and keeps it horizontal under the support limit of the limit support plate 13. At this time, the vacuum suction cup 10 is under the electric push rod 11, and the electric push rod 11 is started to push the vacuum suction cup 10 to contact and adsorb the workpiece formed in the blister mold 2. Then the electric push rod 11 contracts, driving the workpiece to separate from the blister mold 2, and then reversely drives the U-shaped frame 9 to flip, and the workpiece flips accordingly. The flipped workpiece is convenient for picking up and is also convenient for grinding the air exhaust hole 16 at the bottom of the workpiece.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A blister mold for easy demoulding, comprising a mold base (1), characterized in that: The mold base (1) is embedded with a plastic forming mold body (2), a pair of vertical arms (8) are vertically arranged on one side of the mold base (1), a U-shaped frame (9) is rotatably installed between the top ends of the pair of vertical arms (8), an electric push rod (11) is installed on the U-shaped frame (9), and a vacuum suction cup (10) is installed at the telescopic end of the electric push rod (11), and a driving mechanism (12) for driving the U-shaped frame (9) to rotate is provided on the vertical arm (8).

2. A blister mold that is easy to demould according to claim 1, characterized in that: Mounting arms (7) are horizontally fixed to the bottoms of both end surfaces of the mold base (1); a pair of the mounting arms (7) extend out of one side of the mold base (1); and a pair of vertical arms (8) are vertically fixed to the extended ends of the mounting arms (7).

3. The blister mold that is easy to demould according to claim 1, characterized in that: A shaft (14) is rotatably mounted between the top ends of a pair of vertical arms (8), both ends of the U-shaped frame (9) are fixedly sleeved on the shaft (14), and a limiting support plate (13) for horizontally supporting the U-shaped frame (9) is fixed to the top end of the vertical arm (8).

4. A blister mold that is easy to demould according to claim 3, characterized in that: The driving mechanism (12) includes a driving gear (18) and a driven gear (19) rotatably mounted on one of the vertical arms (8), wherein the driving gear (18) and the driven gear (19) are meshed with each other, and the driven gear (19) is coaxially connected to the shaft (14). A bracket (20) is fixed on the vertical arm (8), and a driving motor (21) is mounted on the bracket (20), and a driving shaft of the driving motor (21) is coaxially connected to the driving gear (18).

5. The blister mold for easy demoulding according to claim 4, characterized in that: The radius of the driving gear (18) is smaller than the radius of the driven gear (19).

6. The blister mold for easy demoulding according to claim 1, characterized in that: A cavity (15) is provided between the plastic blister mold (2) and the inner bottom wall of the mold base (1); a plurality of air extraction holes (16) are provided on the bottom wall of the plastic blister mold (2); an air extraction pipe (3) and an air blowing pipe (4) communicating with the cavity (15) are provided at the bottom of the side wall of the mold base (1); and a valve body (5) is installed on both the air extraction pipe (3) and the air blowing pipe (4).

7. The blister mold for easy demoulding according to claim 1, characterized in that: The top of the outer peripheral wall of the plastic blister mold (2) is provided with a boss (17) embedded in the mold base (1), and the top of the mold base (1) is bolted with a pressure frame (6) for limiting the position of the boss (17).

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