A new straight line stretch shell drawing die

Abstract

The utility model relates to a novel linear stretching die for shell punching, which comprises a die holder plate, a die plate, a punch plate, a punch and an upper driving assembly, the die plate is installed on the upper surface of the die holder plate, the die plate is provided with a first forming hole, the die plate is provided with a first vacuum suction hole, the upper surface of the die holder plate is provided with a second vacuum suction hole, the second vacuum suction hole is located in the first forming hole, the punch plate has a first through hole, the first forming hole and the first through hole correspond to each other, the upper driving assembly drives the punch to pass through the first through hole and extend into the first forming hole, when the shell is punched, the aluminum plastic film is placed between the die plate and the punch plate, the first vacuum hole inhales air to firmly adsorb the aluminum plastic film, the die plate moves up to cooperate with the punch plate, then the upper driving assembly drives the punch to press down, passes through the first through hole and extends into the first forming hole, punches the aluminum plastic film into the first forming hole, then the second vacuum hole inhales air, the punch resets, then the die plate moves down to obtain the product after the shell is punched.

Description

Technical Field

[0001] This utility model belongs to the technical field of aluminum-plastic film stamping equipment, specifically relating to a new type of mold for linear stretching stamping. Background Technology

[0002] Currently, aluminum-plastic film punching dies typically place the aluminum-plastic film between a convex template and a stripping template. Then, by driving a concave template upwards to engage with the convex template, the aluminum-plastic film is clamped. An upper drive assembly then drives a punch to insert into the forming groove of the concave template to punch the aluminum-plastic film. However, because the aluminum-plastic film is only clamped by the concave and convex templates, due to processing precision issues, a perfect fit cannot be guaranteed after the templates are engaged. Therefore, during the punching process, the aluminum-plastic film may experience slight displacement, leading to defective products. In light of this, this solution was developed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a new type of mold for linear stretching and punching shells, which can adsorb aluminum-plastic film before punching shells.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a novel die for linear stretching and punching shells, comprising a die mounting plate, a die template, a punch, and an upper drive assembly. The die template is mounted on the upper surface of the die mounting plate, and the die template is provided with a first forming hole and a first vacuum suction hole. The upper surface of the die mounting plate is provided with a second vacuum suction hole, which is located inside the first forming hole. The punch has a first through hole, and the first forming hole and the first through hole correspond to each other. The upper drive assembly drives the punch to pass through the first through hole and extend into the first forming hole.

[0005] Furthermore, there are two punches, and the number of the first forming holes and the first through holes corresponds to the number of punches. The punches are mounted on the servo connection plate.

[0006] Furthermore, a U-shaped pad is connected to the lower surface of the servo connection board, with the two ports of the U-shaped pad facing downwards, and the two punches are respectively connected to the lower surface of the two ports.

[0007] Furthermore, the mold also includes a mold fixing plate, which has a second through hole corresponding to the first through hole.

[0008] Furthermore, a first guide hole is formed on the servo connection plate, and a first glass bead guide post is disposed in the first guide hole, with the lower surface of the first glass bead guide post in contact with the mold fixing plate.

[0009] Furthermore, a second guide hole is formed on one side of the mold fixing plate, and a second glass bead guide post is provided in the second guide hole. The second glass bead guide post is in contact with the upper surface of the cavity mold mounting plate.

[0010] Furthermore, the first and second glass bead guide posts have the same structure. The first glass bead guide post includes a guide post, a ball bushing, a steel sleeve, a movable stop, a top cover, and an anti-buffer runout retaining ring. The ball bushing is sleeved on the outer circumferential surface of the guide post, the steel sleeve is sleeved on the outer circumferential surface of the ball bushing, and an anti-buffer runout retaining ring is provided below the ball bushing. The movable stop and the top cover are respectively provided on the upper and lower surfaces of the guide post.

[0011] Furthermore, a left limiting block and a right limiting block are provided on both sides of the mold fixing plate, and a handle and a locking module are provided on the side wall of the mold fixing plate.

[0012] Furthermore, the upper surface of the mold fixing plate is provided with anti-collision blocks and positioning strips, which are disposed between the two second through holes.

[0013] Furthermore, suction cups are installed at the openings of the first and second vacuum suction holes.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, during the stamping process, the aluminum-plastic film is placed between the concave and convex templates. Air is drawn in through the first vacuum hole, firmly adhering the aluminum-plastic film. The concave template moves upward, clamping the aluminum-plastic film between the templates. Then, the upper drive assembly drives the punch downward, passing through the first through hole and extending into the first forming hole, stamping the aluminum-plastic film into the first forming hole. Air is then drawn in through the second vacuum hole, the punch resets, and the concave template moves downward, obtaining the stamped product. This setup prevents the aluminum-plastic film from moving during the stamping process, ensuring stamping stability and a high success rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the split structure of a novel linear stretching punch mold according to the present invention;

[0017] Figure 2 This is a schematic diagram of the separate structure of the mold fixing plate and the punch in this utility model;

[0018] Figure 3 This is a top view of the mold fixing plate in this utility model.

[0019] Figure 4 This is a schematic diagram of the separate structure of the convex template, concave template, and concave template mounting plate in this utility model;

[0020] Figure 5This is a schematic diagram of the separate structure of the concave template and the concave template mounting plate in this utility model;

[0021] Figure 6 This is a three-dimensional structural diagram of the glass bead guide post in this utility model.

[0022] The markings in the diagram are: 1. Cavity mold mounting plate; 11. Second vacuum suction hole; 2. Cavity mold plate; 21. First vacuum suction hole; 22. First forming hole; 3. Convex mold plate; 31. First through hole; 4. Mold fixing plate; 41. Second through hole; 42. Left limit block; 43. Right limit block; 44. Handle; 45. Locking module; 46. Anti-collision block; 47. Positioning strip; 5. Punch; 51. U-shaped pad; 52. Servo connection plate; 53. Servo connection block; 6. Suction cup; 7. First glass ball guide post; 8. Second glass ball guide post; 81. Guide post; 82. Ball bushing; 83. Steel sleeve; 84. Movable stop block; 85. Top cover; 86. Anti-bushing runout retaining ring. Detailed Implementation

[0023] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0024] like Figures 1-6 As shown, this embodiment provides a novel die for linear stretching and punching, including a concave die mounting plate 1, a concave die plate 2, a convex die plate 3, a die fixing plate 4, a punch 5, an upper drive assembly, and a lower drive assembly.

[0025] The concave template 2 is made of SKD11 mold steel after heat treatment. The concave template 2 is installed on the upper surface of the concave mold mounting plate 1. The concave template 2 is provided with two first forming holes 22, which are spaced apart. The width of the concave template 2 is half the width of the concave mold mounting plate 1. The concave template 2 is installed on one side of the upper surface of the concave mold mounting plate 1. The concave template 2 is provided with a first vacuum suction hole 21. The arrangement of the first vacuum suction holes 21 is based on the size of the aluminum-plastic film. Multiple first vacuum suction holes 21 are connected through a first air channel located inside the concave template 2. An air pipe interface is provided at the port of the first air channel. A suction cup 6 is provided at the port of the first vacuum suction hole 21. The upper surface of the concave mold mounting plate 1 is provided with a second vacuum suction hole 11, which is located inside the first forming hole 22. The second vacuum suction hole is connected through a second air channel located inside the concave mold mounting plate 1. An air pipe interface is provided at the port of the second air channel. A suction cup 6 is provided at the port of the second vacuum suction hole 11.

[0026] A lower drive assembly is provided below the die mounting plate 1. The lower drive assembly can use existing drive mechanisms, such as hydraulic cylinders or servo electric cylinders.

[0027] Preferably, the concave template 2 and the concave template mounting plate 1 can be integrally formed.

[0028] The convex template 3 is made of SKD11 mold steel after heat treatment. The convex template 3 is connected to the lower surface of the mold fixing plate 4. The convex template 3 has two first through holes 31, and the first forming hole 22 corresponds to the first through hole 31. The mold fixing plate 4 has a second through hole 41, which corresponds to the first through hole 31. The mold fixing plate 4 has a left limiting block 42 and a right limiting block 43 on both sides. The mold fixing plate 4 has a handle 44 and a locking module 45 on its side wall. The mold fixing plate 4 has a collision protection block 46 and a positioning strip 47 on its upper surface. The collision protection block 46 and the positioning strip 47 are located between the two second through holes 41. The mold fixing plate 4 has two second guide holes on one side. The second guide holes have second glass bead guide posts 8, which are attached to the upper surface of the cavity mold mounting plate 1.

[0029] The punch 5 is mounted on the servo connection plate 52. The upper surface of the servo connection plate 52 is provided with a servo connection block 53, and the lower surface of the servo connection plate 52 is connected with a U-shaped pad 51. The two ends of the U-shaped pad 51 are set downwards, and the two punches 5 are respectively connected to the lower surfaces of the two ends. In this embodiment, the punch 5 is a T-shaped punch 5. Three first guide holes are formed on the servo connection plate 52. The first glass bead guide post 7 is provided in the first guide hole. The lower surface of the first glass bead guide post 7 is in contact with the mold fixing plate 4.

[0030] The upper drive assembly drives the punch 5 through the second through hole 41 and the first through hole 31 to extend into the first forming hole 22. The upper drive assembly can use existing drive mechanisms, such as hydraulic cylinders, servo electric cylinders, etc.

[0031] The first glass bead guide post 7 and the second glass bead guide post 8 have the same structure. The difference between the first glass bead guide post 7 and the second glass bead guide post 8 is that the length of the guide post 81 is different. The first glass bead guide post 7 includes a guide post 81, a ball bushing 82, a steel sleeve 83, a movable stop 84, a top cover 85, and an anti-buffer runout retaining ring 86. The ball bushing 82 is fitted on the outer circumference of the guide post 81, and the steel sleeve 83 is fitted on the outer circumference of the ball bushing 82. An anti-buffer runout retaining ring 86 is provided below the ball bushing 82. The movable stop 84 and the top cover 85 are respectively provided on the upper and lower surfaces of the guide post 81.

[0032] Working principle: During the punching process, the sliced ​​aluminum-plastic film is picked up and placed on the two first forming holes 22 of the concave template 2. The suction cup 6 set at the first vacuum hole position on the concave template 2 can hold and fix the aluminum-plastic film on the concave template 2 to prevent it from shifting and bending. Then, the lower drive component presses up to make the concave template 2 and the convex template 3 press together with a certain pressure. The upper drive component presses down the servo mounting plate at a uniform speed through the servo connecting block 53, so that the punch 5 passes through the second through hole 41 and the first through hole 31 and enters the first forming hole 22, stretching the aluminum-plastic film and thus realizing the forming of the aluminum-plastic film. After the punching is completed, the reverse operation is performed. The concave template 2 and the convex template 3 open, and the clamping suction plate on the machine picks up the aluminum-plastic film after the punching and places it in the next process.

[0033] During the punching process, it is necessary to ensure that the aluminum-plastic film is adsorbed and fixed on the concave template 2 without folding. The concave template 2 and the convex template 3 are pressed together with a certain pressure. After the punch 5 punches the shell, the aluminum-plastic film is formed without defects such as corner wrinkles or fishtail patterns, thereby improving product quality.

[0034] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A novel die for linear stretching and punching shells, characterized in that: The device includes a die mounting plate, a die template, a punch, a punch, and an upper drive assembly. The die template is mounted on the upper surface of the die mounting plate and has a first forming hole and a first vacuum suction hole. The upper surface of the die mounting plate has a second vacuum suction hole located inside the first forming hole. The punch has a first through hole, and the first forming hole and the first through hole correspond to each other. The upper drive assembly drives the punch to pass through the first through hole and extend into the first forming hole.

2. The novel die for linear stretching and punching shells according to claim 1, characterized in that: The number of punches is two, and the number of the first forming hole and the first through hole corresponds to the number of punches. The punches are mounted on the servo connection plate.

3. The novel die for linear stretching and punching shells according to claim 2, characterized in that: A U-shaped pad is connected to the lower surface of the servo connection board. The two ports of the U-shaped pad are set downwards, and the two punches are respectively connected to the lower surface of the two ports.

4. A novel die for linear stretching and punching shells according to claim 2, characterized in that: The mold also includes a mold fixing plate, which has a second through hole corresponding to the first through hole.

5. A novel die for linear stretching and punching shells according to claim 4, characterized in that: A first guide hole is formed on the servo connection plate, and a first glass bead guide post is disposed in the first guide hole. The lower surface of the first glass bead guide post is in contact with the mold fixing plate.

6. A novel die for linear stretching and punching shells according to claim 5, characterized in that: A second guide hole is formed on one side of the mold fixing plate, and a second glass bead guide post is provided in the second guide hole. The second glass bead guide post is in contact with the upper surface of the cavity mold mounting plate.

7. A novel die for linear stretching and punching shells according to claim 6, characterized in that: The first and second glass bead guide posts have the same structure. The first glass bead guide post includes a guide post, a ball bushing, a steel sleeve, a movable stop, a top cover, and an anti-buffer runout retaining ring. The ball bushing is fitted on the outer circumferential surface of the guide post, and the steel sleeve is fitted on the outer circumferential surface of the ball bushing. An anti-buffer runout retaining ring is provided below the ball bushing. The movable stop and the top cover are respectively provided on the upper and lower surfaces of the guide post.

8. A novel die for linear stretching and punching shells according to claim 4, characterized in that: The mold fixing plate is provided with a left limit block and a right limit block on both sides, and the mold fixing plate is provided with a handle and a lock module on the side wall.

9. A novel die for linear stretching and punching shells according to claim 4, characterized in that: The upper surface of the mold fixing plate is provided with anti-collision blocks and positioning strips, which are arranged between two second through holes.

10. A novel die for linear stretching and punching shells according to claim 1, characterized in that: Suction cups are installed at the openings of the first and second vacuum suction holes.

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