Shifting block structure for strong demolding of flexible glue

Abstract

The utility model discloses a shifting block structure for strong demoulding of soft rubber, which comprises a template, a mold core, sliders, a stripping ejector rod and shifting blocks, the mold core is mounted on the template, the two sliders which slide relatively along with closing and opening of a mold are mounted on the template on two sides of the mold core in a sliding manner, opposite surfaces of the two sliders are provided with product profiling forming grooves, and the shifting blocks are arranged in the product profiling forming grooves. The mold core is located in the product profiling forming groove, a cavity formed by the product profiling forming groove and the mold core is a product forming cavity, a stripping ejector rod which is jacked along with mold opening is inserted in the mold plate and the mold core in the vertical direction, and shifting blocks which synchronously slide along with sliding blocks are slidably installed on the mold plate on the two sides of the product forming cavity. The extending end of the shifting block extends upwards to be provided with a shifting block part capable of shifting the inverted buckle structure of the product outwards, and the shifting block part and the mold core serve as a product inner side forming male mold. According to the mode, the characteristics of the flexible glue are utilized, the forcible demolding position of a product is separated from the reverse buckling position under the action of the shifting block, the ejection resistance is reduced, and the product can be smoothly ejected out.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a push block structure for strong demolding of soft rubber. Background Technology

[0002] Mold injection molded products such as Figure 1 As shown, the product is made of TPU soft rubber, and the bottom of the product has an inverted buckle structure a extending inward, as shown. Figure 2 As shown, due to the excellent elongation and variability of soft rubber, in order to simplify the mold structure, the product's undercut structure is directly designed onto the mold, creating a strong ejection structure. Two ejector blocks are used to push the product upwards, as shown below. Figure 3 As shown, however, actual mold testing revealed that due to the large amount of product undercut, there was significant wrapping resistance during forced removal, making it difficult to eject and remove the final product after injection molding.

[0003] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a pusher block structure for strong demolding of soft rubber. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a pusher block structure for strong demolding of soft rubber. Utilizing the properties of soft rubber, the pusher block helps the product to detach from the undercut position, reducing ejection resistance and enabling the product to be ejected smoothly.

[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a push block structure for strong demolding of soft rubber is provided. This push block structure for strong demolding of soft rubber includes a template, a mold core, a slider, a stripper rod, and push blocks. The mold core is installed on the template. Two sliders are slidably installed on the templates on both sides of the mold core, which slide relative to each other when the mold is closed and opened. The opposing surfaces of the two sliders are provided with product imitation forming grooves. The two sliders serve as the outer forming cavity of the product. The mold core is located inside the product imitation forming groove. The product imitation forming groove and the mold core form a cavity for product forming. The template and the mold core are vertically inserted with stripper rods that rise with the mold opening. Push blocks are slidably installed on the templates on both sides of the product forming cavity. The push blocks slide synchronously with the sliders. The extended ends of the push blocks extend upward and are provided with push block parts that can push the product's undercut structure outward. The push block parts and the mold core serve as the inner forming punch of the product.

[0006] Preferably, the outer end of the lever is provided with a boss, and the bottom of the slider is provided with a groove that mates with the boss, with the boss located in the groove.

[0007] Preferably, the side of the boss facing the groove is also fitted with a bumper strip.

[0008] Preferably, the template has a guide groove, the lever is located in the guide groove, the lever has a waist-shaped stepped hole, and a positioning screw passing through the waist-shaped stepped hole is vertically installed in the guide groove.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] Add a sliding block to each of the undercut and force release positions in the mold. Use the existing slider structure to drive the block. The block will push the product sidewall outward away from the undercut position in the mold, reducing the undercut and force release size and reducing the resistance during ejection, allowing the product to be ejected smoothly. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a molded injection molded product.

[0012] Figure 2 for Figure 1 Enlarged view of a specific area.

[0013] Figure 3 This is a schematic diagram of the ejector block strong release structure for injection molded products using existing technology molds.

[0014] Figure 4 This is a schematic diagram of a release block structure for soft rubber.

[0015] Figure 5 This is a partial structural diagram of a release block structure for soft rubber.

[0016] Figure 6 This is a partial cross-sectional view of a release block structure for soft rubber.

[0017] Figure 7 This is a schematic diagram of a release block structure for soft rubber.

[0018] Figure 8 This is a schematic diagram of a release block structure for strong release of soft rubber.

[0019] Among them, 1. Template, 10. Guide groove, 2. Mold core, 3. Slider, 30. Groove, 4. Stripping rod, 5. Push block, 50. Push block part, 51. Boss, 52. Waist-shaped stepped hole, 6. Anti-collision strip, 7. Positioning screw. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0021] Please see Figures 4 to 8 The embodiments of this utility model include:

[0022] A strong demolding block structure for soft rubber includes a template 1, a mold core 2, sliders 3, a ejector pin 4, and a push block 5. The mold core 2 is mounted on the template 1. Two sliding grooves are provided on the template 1 on both sides of the mold core 2. Two collapsible sliders 3 are slidably mounted in the sliding grooves. The two sliders 3 slide relative to each other and close when the mold is closed. The two sliders 3 slide opposite each other and open when the mold is opened. The opposing surfaces of the two sliders 3 are provided with product forming grooves. The two sliders 3 serve as the outer forming grooves of the product. The die has a core 2 located inside the product forming groove. The product forming groove and the core 2 together form a cavity for product forming. The template 1 and the core 2 are vertically fitted with ejector pins 4 that rise with the mold opening. The template 1 on both sides of the product forming cavity is slidably mounted with push blocks 5. The push blocks 5 slide synchronously with the slider 3. The extended end of the push blocks 5 extends upward and is provided with a push block part 50 that can push the product undercut structure outward. The push block part 50 and the core 2 together serve as the inner forming punch of the product.

[0023] The outer end of the lever 5 is provided with a boss 51, and the bottom of the slider 3 is provided with a groove 30 that cooperates with the boss 51. The boss 51 is located in the groove 30. Through the cooperation of the boss 51 and the groove 30, the slider 3 slides and drives the lever 5 to move accordingly.

[0024] A bumper strip 6 is also installed on the side of the boss 51 facing the groove 30.

[0025] The template 1 has a guide groove 10, the push block 5 is located in the guide groove 10, the push block 5 has a waist-shaped stepped hole 52, and a positioning screw 7 is vertically installed in the guide groove 10, passing through the waist-shaped stepped hole 52. The positioning screw 7 and the waist-shaped stepped hole 52 cooperate to play a guiding and positioning role.

[0026] In operation, the push block structure for strong release of soft rubber, as per this utility model, after product injection molding, opens the mold, and the two side sliders 3 slide open in opposite directions as the mold opens. The side sliders 3 continue to move, driving the push block 5 to slide. After being driven by the sliders 3, the push block 50 pushes the product sidewall (product undercut structure) away from the strong release undercut position. Figure 8 As shown, after the mold opening action is completed, the ejector pin 4 ejects the product normally.

[0027] This utility model discloses a pusher block structure for strong demolding of soft rubber. Utilizing the properties of soft rubber, the pusher block helps the product to detach from the undercut position at the strong demolding point, reducing ejection resistance and enabling the product to be ejected smoothly.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A release block structure for soft rubber, characterized in that: The system includes a template (1), a mold core (2), sliders (3), a stripper rod (4), and a pusher block (5). The template (1) is equipped with the mold core (2). Two sliders (3) are slidably installed on the template (1) on both sides of the mold core (2), which slide relative to each other when the mold is closed and opened. The opposing surfaces of the two sliders (3) are provided with product imitation forming grooves. The two sliders (3) serve as the outer forming cavity of the product. The mold core (2) is located inside the product imitation forming groove. The product imitation forming groove and the mold core (2) are connected. The core (2) forms a cavity for product molding. The template (1) and the core (2) are vertically fitted with ejector rods (4) that rise with the mold opening. The templates (1) on both sides of the product molding cavity are slidably mounted with paddle blocks (5). The paddle blocks (5) slide synchronously with the slider (3). The extended end of the paddle blocks (5) extends upward and is provided with a paddle part (50) that can paddle the product undercut structure outward. The paddle part (50) and the core (2) serve as the inner molding punch of the product.

2. The release block structure for soft rubber according to claim 1, characterized in that: The outer end of the push block (5) is provided with a boss (51), and the bottom of the slider (3) is provided with a groove (30) that cooperates with the boss (51). The boss (51) is located in the groove (30).

3. The release block structure for soft rubber according to claim 2, characterized in that: The side of the boss (51) facing the groove (30) is also equipped with a bumper strip (6).

4. The release block structure for soft rubber according to claim 1, characterized in that: The template (1) has a guide groove (10), the push block (5) is located in the guide groove (10), the push block (5) has a waist-shaped stepped hole (52), and a positioning screw (7) passing through the waist-shaped stepped hole (52) is vertically installed in the guide groove (10).

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