A cold cutting structure for a slider of a three-plate mold

Abstract

The object of the present invention is to solve the problem of gate cutting of products in cold cutting of three-plate molds, and a cold cutting structure of a slider for three-plate molds is disclosed, including a three-plate mold. Connecting bars are symmetrically connected between the upper and lower molds of the three-plate mold. First lifters are symmetrically installed on both sides of the upper mold of the three-plate mold. Guide rods are symmetrically installed on both sides of the lower mold of the three-plate mold. A collar is sleeved on the guide rod. A slide rod is sleeved inside the collar. A guide ring is sleeved on the surface of the slide rod. A helical spring is connected between the guide ring and a nut sleeved on the slide rod. Connecting rods are symmetrically connected to the upper and lower sides of the guide ring. Connection blocks are fixedly installed at the outer ends of the connecting rods. A slide plate is connected to the inner side of the connection block. A second lifter is fixedly installed on the side of the guide ring. A through hole is formed in the middle of the slide plate. Through the cooperation of the lifters, the present invention can make the slide plates slide relative to each other, and then realize the cutting of the product gate through the through hole on the slide plate.

Description

Technical Field

[0001] The present invention relates to the field of three-plate molds, and particularly to a cold cutting structure for a slider of a three-plate mold. Background Art

[0002] A three-plate mold structure with the publication number CN208745218U can automatically shear the gate, saving labor costs, improving production efficiency, achieving balance of the mold clamping force, and adapting to small machines for production. The mold structures currently used generally adopt the form of side gates or large gates in two-plate molds, mainly unable to automatically shear the gate, and the position of the gate sleeve is not centered, resulting in the inability of small machines to produce and unbalanced mold clamping force. Now, the simple three-plate mold structure does not have the problems of inability of small machines to produce or unbalanced mold clamping force. Although the three-plate mold has been improved, there is still a lack of shear control for the product gate. Generally, only one gate position is disengaged, but it is not convenient to quickly remove the remaining gates on the product and the product from the mold. Therefore, the inventor has invented a cold cutting structure for a slider of a three-plate mold to solve the problem of cutting the product gate of the three-plate mold. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art and provide a cold cutting structure for a slider of a three-plate mold.

[0004] The present invention is achieved through the following technical solutions:

[0005] A cold cutting structure for a slider of a three-plate mold includes a three-plate mold. Connecting bars are symmetrically connected between the upper and lower molds of the three-plate mold. First lifters are symmetrically installed on both sides of the upper mold of the three-plate mold. Guide rods are symmetrically installed on both sides of the lower mold of the three-plate mold. A collar is sleeved on the guide rod. A slide bar is sleeved inside the collar. A guiding ring is sleeved on the surface of the slide bar. A spiral spring is connected between the guiding ring and a nut sleeved on the slide bar. Connecting rods are symmetrically connected to the upper and lower sides of the guiding ring. A connecting block is fixedly installed at the outer end of the connecting rod. A slide plate is connected to the inner side of the connecting block. A second lifter is fixedly installed on the side surface of the guiding ring. A through hole is opened in the middle of the slide plate.

[0006] As a preferred technical solution of the present invention, both the first lifter and the second lifter are inclined and corresponding in position.

[0007] As a preferred technical solution of the present invention, the guiding ring is in sliding fit with the slide bar.

[0008] As a preferred technical solution of the present invention, the collar is in sliding fit with the guide rod and the slide bar respectively.

[0009] As a preferred technical solution of the present invention, a rubber sleeve is sleeved inside the collar.

[0010] As a preferred technical solution of the present invention, the skateboard is composed of two superimposed plates, and the plates are slidably matched with each other.

[0011] As a preferred technical solution of the present invention, the connecting bar is made of spring steel.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] By providing the connecting bar, the present invention plays a role in supporting force, making the opening and closing of the upper and lower molds more stable, that is, facilitating tightening, and preventing loosening during the opening and closing of the mold. By providing the first lifter and the second lifter, through the cooperation of the two lifters, the skateboard can be pulled outwards during mold opening. Through the sliding of the skateboard, the through hole can be used to cut the gate position of the product. On the basis of the traditional three-plate mold for gate separation, the additional gates of the product can be cut off, so that the product can be demolded. Through the cooperation of the lifters, the skateboards can slide relative to each other, and then the through holes on the skateboards are used to cut the gates of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the present invention.

[0015] Figure 2 It is a bottom view of the skateboard of the present invention.

[0016] Figure 3 It is a schematic diagram of the cooperation of two skateboards of the present invention.

[0017] In the figure: 1. Three-plate mold; 2. First lifter; 3. Connecting bar; 4. Second lifter; 5. Guide ring; 6. Helical spring; 7. Slide bar; 8. Connecting rod; 9. Connecting block; 10. Collar; 11. Guide rod; 12. Skateboard; 13. Through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-3 , the present invention provides a technical solution:

[0020] A cold cutting structure for a slider of a three-plate mold, including a three-plate mold 1. Between the upper and lower molds of the three-plate mold 1, connecting bars 3 are symmetrically connected. On both sides of the upper mold of the three-plate mold 1, first lifters 2 are symmetrically installed. On both sides of the lower mold of the three-plate mold 1, guide rods 11 are symmetrically installed. A collar 10 is sleeved on the guide rod 11. A sliding rod 7 is sleeved inside the collar 10. A guiding ring 5 is sleeved on the surface of the sliding rod 7. A helical spring 6 is connected between the guiding ring 5 and a nut sleeved on the sliding rod 7. On the upper and lower sides of the guiding ring 5, connecting rods 8 are symmetrically connected. At the outer ends of the connecting rods 8, connecting blocks 9 are fixedly installed. Inside the connecting blocks 9, a sliding plate 12 is connected. On the side of the guiding ring 5, a second lifter 4 is fixedly installed. A through hole 13 is opened in the middle of the sliding plate 12.

[0021] Both the first lifter 2 and the second lifter 4 are inclined designs and are corresponding in position.

[0022] The guiding ring 5 is in sliding fit with the sliding rod 7.

[0023] The collar 10 is in sliding fit with the guide rod 11 and the sliding rod 7 respectively.

[0024] A rubber sleeve is sleeved inside the collar 10.

[0025] The sliding plate 12 is composed of two superimposed plates and the plates are in sliding fit with each other.

[0026] The connecting bar 3 is made of spring steel.

[0027] Working principle: The operation is the same as that of a traditional three-plate mold. Only the added lifter structure and sliding plate structure can cut the gate of the product. When closing the mold, the first lifter 2 will push the second lifter 4 outwards. At this time, the sliding plate 12 will slide outwards respectively, making the through holes 13 of the upper and lower sliding plates 12 correspond in position. At this time, feeding can be carried out through the inlet and outlet on the mold. When it is necessary to open the mold, the pushing of the first lifter 2 on the second lifter 4 will be stopped. Due to the elastic force of the helical spring 6, the sliding plate 12 will slide towards the middle, causing the through holes 13 on the two sliding plates 12 to be misaligned. By the misalignment of the through holes 13, the gate of the product is cut, thus completing the removal of the product gate.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold cutting structure for a slider of a three-plate mold, comprising a three-plate mold (1), characterized in that: A connecting bar (3) is symmetrically connected between the upper and lower dies of the three-plate die (1). First lifters (2) are symmetrically installed on both sides of the upper die of the three-plate die (1). Guide rods (11) are symmetrically installed on both sides of the lower die of the three-plate die (1). A collar (10) is sleeved on the guide rod (11). A sliding rod (7) is sleeved inside the collar (10). A guide ring (5) is sleeved on the surface of the sliding rod (7). A helical spring (6) is connected between the guide ring (5) and a nut sleeved on the sliding rod (7). Connecting rods (8) are symmetrically connected to the upper and lower sides of the guide ring (5). A connecting block (9) is fixedly installed at the outer end of the connecting rod (8). A sliding plate (12) is connected to the inner side of the connecting block (9). A second lifter (4) is fixedly installed on the side of the guide ring (5). A through hole (13) is formed in the middle of the sliding plate (12).

2. The cold cutting structure of the slider of the three-plate mold according to claim 1, wherein: Both the first lifter (2) and the second lifter (4) are inclined and their positions correspond to each other.

3. The cold cutting structure of the slider of a three-plate mold according to claim 1, characterized in that: The guide ring (5) is in sliding fit with the sliding rod (7).

4. The cold cutting structure of the slider of a three-plate mold according to claim 1, characterized in that: The collar (10) is in sliding fit with the guide rod (11) and the sliding rod (7) respectively.

5. A cold cutting structure for a slider of a three-plate mold according to claim 1, characterized in that: A rubber sleeve is sleeved inside the collar (10).

6. The cold cutting structure of the slider of a three-plate mold according to claim 1, characterized in that: The sliding plate (12) consists of two superimposed plates and the plates are in sliding fit with each other.

7. A cold cutting structure for a slider of a three-plate mold according to claim 1, characterized in that: The connecting bar (3) is made of spring steel.

Images