Rubber back-off structure and demolding process thereof

Abstract

The invention discloses a rubber back-off structure and a demolding process thereof, and belongs to the field of rubber back-off structures, the rubber back-off structure comprises a middle plate, and the middle plate is provided with an upper contact surface; the upper plate is provided with a lower contact face, and the upper plate can abut against the upper contact face of the middle plate through the lower contact face of the upper plate. According to the rubber inverted buckle structure and the demolding process thereof, after the middle plate is ejected out through the arranged cores and 2RT, a plastic plate is taken to be placed between the bottom plate and the middle plate, the 2RT is lowered, all the cores 4 are automatically ejected out, a product begins to be demolded, and the plastic plate is pulled out when the product enters a mold, so that the demolding efficiency of the product can be improved, and the mold processing cost is reduced; the problems that an inverted core is movable, the core needs to be manually taken out during demolding, the product demolding efficiency is low, a mold cavity is prone to being damaged by collision, the core is ejected out through 2RT, the distance is limited by a mold plate, burrs of a bottom plate are difficult to clean, the distance is short, and the mold demolding effect is low can be solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of rubber undercut structure, and particularly relates to a rubber undercut structure and a demolding process thereof. BACKGROUND

[0002] In the prior art, the core of the undercut is movable, and the core is manually removed after the product is demolded, so that the product demolding efficiency is low, the mold cavity is easily damaged, the distance is limited by the template, the bottom plate burr is difficult to clean, the distance is short, the demolding effect is low, the core plate is difficult to demold due to the short top-out distance of the bottom plate, the top rod is easily damaged, the bottom plate burr is difficult to clean, the burr is easily stuck into the lower mold product, the defect rate is high, the efficiency is low, and the mold processing cost is high, which needs to be improved.

[0003] The present application attempts to alleviate or at least mitigate such problems or deficiencies by providing a new or otherwise improved rubber undercut structure. SUMMARY

[0004] In view of one or more of the above deficiencies or improvement needs of the prior art, the present application provides a rubber undercut structure and a demolding process thereof, which has the advantage of improved demolding effect.

[0005] To achieve the above-mentioned purpose, the present application provides a rubber undercut structure and a demolding process thereof, which comprises a middle plate having an upper contact surface thereon; an upper plate having a lower contact surface thereon, the upper plate being capable of being in contact with the upper contact surface of the middle plate through the lower contact surface thereof; a bottom plate removably disposed on the bottom surface of the middle plate; a core having a first vertical surface and a first bottom surface perpendicular to the first vertical surface, a left contact gap being formed between the first vertical surface and the first bottom surface, the core further having a second vertical surface and a second bottom surface perpendicular to the second vertical surface, a right contact gap being formed between the second vertical surface and the second bottom surface; a slide rod detachably disposed at the bottom of the core and capable of sliding in the middle plate; a top rod removably disposed in the middle plate.

[0006] As a further improvement of the present application, the slide rod has a cavity therein, and the size of the cavity is adapted to the size of the top rod.

[0007] As a further improvement of the present application, a pad is detachably mounted at the bottom of the top rod, and the size of the pad is adapted to the size of the top rod.

[0008] As a further improvement of the present application, the top of the ejector rod is provided with an inner conical thread, which can be inserted into the cavity.

[0009] As a further improvement of the present application, the ejector rod is provided with an outer conical thread, which has a diameter matching that of the inner conical thread.

[0010] As a further improvement of the present application, the core has a pressing surface, and a pressing gap is formed between the pressing surface and the upper plate, which can allow the product to pass through.

[0011] As a further improvement of the present application, the bottom of the cushion block is provided with a through hole, which has a diameter matching that of the cushion block.

[0012] Another technical problem to be solved by the present application is a demolding process for the rubber reverse-docking structure, S1, preparation: cut the mixed finished rubber into 200mm±0.7mm in length, 7mm±0.3mm in width and 3mm±0.1mm in thickness according to the production process requirements of the product; S2, molding: adjust the molding temperature to 190 degrees, adjust the molding pressure to 160Bαr, and control the molding time to 150S; S3, demolding: after the middle plate is ejected by 2RT, a plastic plate is placed between the bottom plate and the middle plate, and the 2RT is lowered, and the core is automatically ejected, and the product is started to be demolded, and the plastic plate can be taken out when the mold is entered.

[0013] Overall, the above technical solutions conceived by the present application have the following beneficial effects compared with the prior art: The rubber reverse-docking structure and the demolding process thereof of the present application can improve the demolding efficiency of the product, reduce the mold processing cost, avoid the problems that the reverse-docking core is movable, the core needs to be manually taken out during demolding, the demolding efficiency is low, the mold cavity is easily damaged, the distance is limited by the mold plate, the bottom plate burr is difficult to clean, and the demolding effect is low. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a sectional view of the rubber reverse-docking structure of the present application; Figure 2 is an enlarged view of A of the present application Figure 1 ; Figure 3 For the present invention Figure 1 Enlarged view of point B.

[0015] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Middle plate; 2. On the board; 3. Base plate; 4. Core; 5. Top rod; 6. Spacer blocks; 7. First vertical plane; 8. First bottom surface; 9. The second vertical plane; 10. Second bottom surface; 11. Slide bar; 12. Cavity; 13. Internal tapered thread; 14. External tapered thread. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0018] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0019] In the embodiments, by Figures 1-3 A rubber snap-on structure is given, wherein, Figure 1 This is a cross-sectional view of the rubber buckle structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of point A; Figure 3 For the present invention Figure 1The enlarged view at point B includes a middle plate 1 with an upper contact surface; an upper plate 2 with a lower contact surface, which can abut against the upper contact surface of the middle plate 1; a bottom plate 3, which is removably disposed on the bottom surface of the middle plate 1; a core 4, which has a first vertical surface 7 and a first bottom surface 8 perpendicular to the first vertical surface 7, forming a left abutment gap between the first vertical surface 7 and the first bottom surface 8; a second vertical surface 9 and a second bottom surface 10 perpendicular to the second vertical surface 9, forming a right abutment gap between the second vertical surface 9 and the second bottom surface 10; a slide rod 11, which is detachably disposed at the bottom of the core 4 and can slide within the middle plate 1; and a top rod 5, which is removably disposed within the middle plate 1.

[0020] The overall concept behind this invention is as follows: using the arranged cores 4, the mixed finished rubber is cut to length according to the product's production process requirements. The molding temperature is adjusted to 190 degrees Celsius, the molding pressure to 160 rpm, and the molding time to 150 seconds. After the middle plate is ejected by 2RT, a plastic plate is placed between the bottom plate and the middle plate, and the cores 4 are lowered by 2RT. The cores 4 are automatically ejected, and the product is then demolded. When entering the mold, the plastic plate can be removed. This improves the demolding efficiency of the product, reduces the mold processing cost, and avoids the problems of the undercut cores being movable, requiring manual removal of the cores during demolding, resulting in low product demolding efficiency and easy damage to the mold cavity. The cores are ejected by 2RT, but the distance is limited by the template, making it difficult to clean the burrs on the bottom plate, and the short distance results in low demolding efficiency.

[0021] In some embodiments, more specifically, in order to further improve the stability of the push rod 5 when sliding within the slide rod 11, a cavity 12 is provided within the slide rod 11, and the diameter of the cavity 12 is adapted to the diameter of the push rod 5.

[0022] In some embodiments, more specifically, in order to further improve the stability of the connection between the push rod 5 and the push member, a pad 6 is detachably installed at the bottom of the push rod 5, and the diameter of the pad 6 is adapted to the diameter of the push rod 5. In other embodiments, the jacking component may be a hydraulic cylinder or other hydraulic device.

[0023] In some embodiments, more specifically, in order to further improve the stability of the push rod 5 when sliding within the slide rod 11, an internal tapered thread 13 is provided at the top of the push rod 5, and the internal tapered thread 13 can penetrate into the cavity 12.

[0024] In some embodiments, more specifically, in order to further improve the stability of the push rod 5 when sliding within the slide rod 11, an external tapered thread 14 is also provided within the slide rod 11, and the diameter of the external tapered thread 14 is adapted to the diameter of the internal tapered thread 13.

[0025] In some embodiments, more specifically, in order to further improve the flexibility between the core 4 and the upper plate 2 when in contact with the product, the core 4 has a pressing surface, and there is a pressing gap between the pressing surface and the upper plate 2, and the pressing gap allows the product to pass through.

[0026] In some embodiments, more specifically, in order to further improve the stability of the connection between the pad 6 and the pusher, a through hole is provided at the bottom of the pad 6, and the diameter of the through hole is adapted to the diameter of the pad 6.

[0027] Another technical problem to be solved by this invention is a demolding process for a rubber inverted structure; more specifically, S1. Material preparation: Cut the mixed finished rubber into pieces with a length of 200mm ± 0.7mm, a width of 7mm ± 0.3mm, and a thickness of 3mm ± 0.1mm according to the product's production process requirements. S2, Molding: Adjust the molding temperature to 190 degrees, adjust the molding pressure to 160 Bαr, and control the molding time to 150 seconds; S3. Demolding: After the middle plate 1 is ejected by 2RT, take a plastic plate and place it between the bottom plate 3 and the middle plate 1. Lower 2RT, and the core 4 will be ejected automatically. Start demolding the product. When entering the mold, simply pull out the plastic plate.

[0028] In summary, by using the core 4, the mixed finished rubber is cut to length according to the product's production process requirements. The molding temperature is adjusted to 190 degrees Celsius, the molding pressure to 160 rpm, and the molding time to 150 seconds. After the middle plate is ejected by 2RT, a plastic plate is placed between the bottom plate and the middle plate. The core 4 is then lowered by 2RT, and all cores 4 are automatically ejected, starting the product demolding process. When entering the mold, the plastic plate can be removed. This method improves the demolding efficiency of the product, reduces mold processing costs, and avoids the problems of the undercut core being movable, requiring manual removal of the core during demolding, resulting in low product demolding efficiency and easy damage to the mold cavity. Furthermore, the 2RT ejection of the core is limited by the template distance, making it difficult to clean the burrs on the bottom plate and resulting in low demolding efficiency due to the short distance.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber buckle structure, characterized in that, It includes The middle plate (1) has an upper contact surface; The upper plate (2) has a lower contact surface, which can abut against the upper contact surface of the middle plate (1) through its lower contact surface; The bottom plate (3) is removably disposed on the bottom surface of the middle plate (1); The core (4) has a first vertical surface (7) and a first bottom surface (8) perpendicular to the first vertical surface (7), and a left abutting gap is formed between the first vertical surface (7) and the first bottom surface (8). The core (4) also has a second vertical surface (9) and a second bottom surface (10) perpendicular to the second vertical surface (9), and a right abutting gap is formed between the second vertical surface (9) and the second bottom surface (10). A slide bar (11) is detachably installed at the bottom of the core (4), and the slide bar (11) can slide within the middle plate (1); Top rod (5), which is removably installed in the middle plate (1).

2. The rubber buckle structure according to claim 1, characterized in that, The slide rod (11) has a cavity (12) inside, and the diameter of the cavity (12) is adapted to the diameter of the top rod (5).

3. The rubber buckle structure according to claim 2, characterized in that, A pad (6) can be detachably installed at the bottom of the top rod (5), and the diameter of the pad (6) is compatible with the diameter of the top rod (5).

4. The rubber buckle structure according to claim 3, characterized in that, The top of the push rod (5) also has an internal tapered thread (13), and the internal tapered thread (13) can be inserted into the cavity (12).

5. The rubber buckle structure according to claim 4, characterized in that, The slide bar (11) also has an external tapered thread (14), and the diameter of the external tapered thread (14) is compatible with the diameter of the internal tapered thread (13).

6. The rubber buckle structure according to claim 5, characterized in that, The core (4) has a pressing surface and a pressing gap between the pressing surface and the upper plate (2), and the pressing gap allows the product to pass through.

7. The rubber buckle structure according to claim 6, characterized in that, A perforation is also provided at the bottom of the pad (6), and the diameter of the perforation is adapted to the diameter of the pad (6).

8. The demolding process of the rubber inverted structure according to claim 7, characterized in that, S1. Material preparation: Cut the mixed finished rubber into pieces with a length of 200mm ± 0.7mm, a width of 7mm ± 0.3mm, and a thickness of 3mm ± 0.1mm according to the product's production process requirements. S2, Molding: Adjust the molding temperature to 190 degrees, adjust the molding pressure to 160 Bαr, and control the molding time to 150 seconds; S3, Demolding: After the middle plate (1) is ejected by 2RT, take a plastic plate and place it between the bottom plate (3) and the middle plate (1). Lower 2RT, and the core (4) will be ejected automatically. Start demolding the product. When entering the mold, simply pull out the plastic plate.

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