The mold for honeycomb products can be separated by an external pull plate and a multi-step ejection mechanism.

Abstract

The mold of the honeycomb product can be separated from the mold through an external pull plate and a multi-step ejection mechanism. It belongs to the field of plastic mold technology and realizes mass production of air spring shock absorber assembly cone products through injection molding. The products are mainly used in automobile air suspension systems. By setting an external pull plate and a multi-step ejection mechanism on the mold, the surface defects of the honeycomb product during molding, such as inability to demold, top cracking, burning in the honeycomb hole of the product, and obvious welding marks, are solved, the defect rate is reduced, and production efficiency is improved.

Description

Technical Field

[0001] The patent of this invention belongs to the field of plastic mold technology, and relates to a mold that can separate honeycomb products through an external pull plate and a multi-step ejection mechanism, and realizes mass production of air spring shock absorber assembly cone products through injection molding. The products are mainly used in high-quality precision automobile air suspension systems. Background Art

[0002] At present, the high-quality cars on the market need to have good comfort and take into account the passing performance of off-road vehicles. The air suspension system is the best choice to achieve this goal. In order to ensure the stability of the air suspension system during driving, automobile manufacturers will improve the air spring shock absorber. During the improvement process, in order to meet the pressure requirements when the assembly cone and the metal bracket are matched, the assembly cone will be designed to be very firm. The honeycomb assembly cone is currently the best solution, but from the perspective of injection molding, it is difficult to smoothly demold the honeycomb structure during mold injection or the honeycomb structure is stretched around the outside during ejection. Some manufacturers can only use release agents to solve the problem of sticking or stretching. They cannot produce stably, have high maintenance costs, and do not meet large-scale and environmental protection requirements. This mold has achieved the mass production requirements of the product with a honeycomb structure through continuous structural updates and multiple steps. The technical requirements of product design have been met, the accuracy of the product has been guaranteed, the molding cycle has been reduced, and the production efficiency has been improved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the disadvantage that the honeycomb product has too large a clamping force and is difficult to demould, and the purpose of smoothly separating the mold from the honeycomb product is achieved through an external pull plate and a multi-step ejection mechanism, so that the product ejected after injection molding directly meets the technical requirements and usage requirements of the drawing.

[0004] The technical solution adopted by the present invention to solve the technical problem is: the mold of the honeycomb product is separated by an external pull plate and a multi-step ejection mechanism, and the mold frame is mainly composed of a fixed mold base plate 1, a hot runner plate 2, a water inlet push plate 3, a fixed mold plate 4, a movable mold plate 5, a first extraction plate 6, a surface needle plate 7, a bottom needle plate 8, a square iron 9, and a movable mold bottom plate 10. The internal main structure is composed of a fixed mold insert 100, a fixed mold insert A101, a fixed mold insert B102, a fixed mold insert C103, a movable mold insert 200, a movable mold insert 201, a honeycomb insert 202, a honeycomb insert A group 203, a honeycomb insert B group 204, a honeycomb insert fixed block 205, a honeycomb insert fixed block back block 206, an ejector pin 207, a shoulder bolt 208, an external pull plate 209, a mold opening sequence lock 210, and a product 211.

[0005] The connection relationship of the mold for separating the honeycomb product by the external pull plate and the multi-step ejection mechanism is as follows: the movable mold plate 5 is provided with an ejector pin hole, a shoulder bolt threaded hole, an external pull plate threaded hole, and a movable mold insert bolt hole; the movable mold insert 200 is provided with a movable mold insert hole, a threaded hole, a hanging platform hole, and an ejector pin hole; the movable mold plate 5 and the movable mold insert 200 are provided with The clearance fit is locked and fixed by bolts, a hanging platform is provided on the movable mold insert 201, and the hanging platform of the movable mold insert 201 is clearance-fitted with the hanging platform hole of the movable mold insert block 200 and is positioned by the hanging platform height, a honeycomb hole and a hanging platform are provided on the honeycomb insert block 202, and the inner wall of the honeycomb hole is provided with an angle, and the hanging platform of the honeycomb insert block 202 is clearance-fitted with the hanging platform hole of the movable mold insert block 200 and is positioned by the hanging platform height, and a hanging platform and a demoulding cone angle are provided on the honeycomb insert group A 203; a hanging platform and a demoulding cone angle are provided on the honeycomb insert group B 204 parts; a honeycomb insert through hole, a special hanging platform hole for the honeycomb insert group A 203, a special hanging platform hole for the honeycomb insert group B 204, a pin through hole, and a threaded hole are provided on the honeycomb insert fixing block 205; the honeycomb insert group A 203 is clearance-fitted with the honeycomb insert fixing block 205, and is limited by the height of the special hanging platform hole for the honeycomb insert group A 203 The honeycomb inlay group B 204 and the honeycomb inlay fixing block 205 are clearance-matched, and the position is limited by the height of the special hanging platform hole of the honeycomb inlay group B 204; the honeycomb inlay fixing block back block 206 is provided with bolt through holes, ejector through holes and threaded holes; the honeycomb inlay fixing block back block 206 is locked and fixed with the honeycomb inlay fixing block 205 by bolts; the first-drawn plate 6 is provided with shoulder bolt through holes, bolt through holes and ejector through holes; the first-drawn plate 6 is locked and fixed with the honeycomb inlay fixing block 205 by bolts; the first-drawn plate 6 is locked and fixed with the honeycomb inlay fixing block back block 206 by bolts; the first-drawn plate 6 is threadedly connected and limited with the movable template 5 by shoulder bolts 208; the fixed template 4 is provided with an outer pull plate bolt hole, the outer pull plate 209 is provided with a bolt through hole groove, and the outer pull plate 209 is connected and limited with the fixed template 4 and the movable template 5 by bolts.

[0006] When opening the mold, under the action of the mold opening sequence lock 210, the fixed mold plate 4 and the movable mold plate 5 are opened first. After the mold opening sequence lock 210 is disengaged, the movable mold plate 5 and the first draw plate 6 begin to separate under the action of the outer pull plate 209, and the honeycomb inlay group A 203 is separated from the product 211 first, and the mold opening continues. The honeycomb inlay group B 204 hanging platform contacts the special hanging platform hole of the honeycomb inlay fixed block 205, and the honeycomb inlay group B 204 is separated from the product 211, and the mold opening continues. The shoulder bolt 208 is used for limiting, the mold opening is completed, and the ejector pin 207 ejects the product 211.

[0007] When closing the mold, under the action of the mold opening sequence lock 210, the draw plate 6 first contacts the movable mold plate 5, the conical surface of the honeycomb insert group B 204 cooperates with the angle surface of the inner wall of the honeycomb hole of the honeycomb insert 202 and is reset, the mold continues to close, the conical surface of the honeycomb insert group A 203 cooperates with the angle surface of the inner wall of the honeycomb hole of the honeycomb insert 202 and is reset, the mold continues to close, the fixed mold plate 4 and the movable mold plate 5 contact each other, the mold opening sequence lock 210 locks the fixed mold plate 4 and the movable mold plate 5, and the mold closing is completed.

[0008] The beneficial effects of the present invention are as follows: by arranging an outer pull plate and a multi-step ejection mechanism on the mold, the problem of surface defects such as inability to demould, top cracking, burning in the honeycomb holes of the product, obvious welding marks, etc. caused by excessive clamping force during molding of the honeycomb product is solved, the defect rate is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The following is a detailed description of the embodiments with reference to the accompanying drawings.

[0010] Figure 1 It is an isometric diagram of the mold assembly.

[0011] Figure 2 This is a schematic diagram of the separation of the movable and fixed templates in the first step of mold opening.

[0012] Figure 3 It is a schematic isometric view of the first step 203 and 204 of mold opening without separation.

[0013] Figure 4 It is a schematic diagram of separation of the second step 203 of mold opening.

[0014] Figure 5 It is a schematic diagram of the separation of the second step 203 of mold opening.

[0015] Figure 6 It is a schematic diagram of separation of the third step 204 of mold opening.

[0016] Figure 7 It is a schematic diagram of the separation of the third step 204 of mold opening.

[0017] Figure 8 This is a schematic diagram of the mold opening completion.

[0018] Fig. 9 This is a schematic diagram of the closed mold 5 and 6.

[0019] Fig.10 This is a schematic diagram of the mold being completely closed.

[0020] Fig.11 This is a schematic diagram of the product's honeycomb structure.

[0021] In the figure, 1 is a fixed mold base plate; 2 is a hot runner plate; 3 is a sprue push plate; 4 is a fixed mold plate; 5 is a movable mold plate; 6 is a first draw plate; 7 is a surface needle plate; 8 is a bottom needle plate; 9 is a square iron; 10 is a movable mold bottom plate; 100 is a fixed mold insert; 101 is a fixed mold insert A; 102 is a fixed mold insert B; 103 is a fixed mold insert C; 200 is a movable mold insert; 201 is a movable mold insert; 202 is a honeycomb insert; 203 is a honeycomb insert group A; 204 is a honeycomb insert group B; 205 is a honeycomb insert fixing block; 206 is a honeycomb insert fixing block back block; 207 is a ejector pin; 208 is a shoulder bolt; 209 is an outer pull plate; 210 is a mold opening sequence lock; 211 is a product. DETAILED DESCRIPTION

[0022] The specific embodiments of the invention are described in detail below with reference to technical texts and drawings.

[0023] Assembly of the fixed mold part: install the fixed mold insert A101, the fixed mold insert B102, and the fixed mold insert C103 into the fixed mold block 100 respectively, install the fixed mold block 100 into the fixed mold plate 4 and lock and fix it with bolts; install the hot runner system into the hot runner plate 2, lock and fix the fixed mold base plate 1 and the hot runner plate 2 with bolts; connect the sprue push plate 3 and the hot runner plate 2 with shoulder bolts, and the fixed mold assembly is completed.

[0024] Assembly of the movable mold part: install the movable mold insert 201 and the honeycomb insert 202 into the movable mold insert 200, assemble the assembled movable mold insert 200 into the movable mold plate 5, install the honeycomb insert fixing block 205 into the movable mold plate 5, install the honeycomb insert group A 203 and the honeycomb insert group B 204 into the nest insert fixing block 205, and the honeycomb insert fixing block back block 206 is threadedly connected to lock the honeycomb insert fixing block 205; cooperate the first draw plate 6 with the honeycomb insert fixing block back block 206, and tighten them with bolts, install the shoulder bolt 208 in the first draw plate 6, control the mold opening distance, introduce the ejector pin 207 into the face needle plate 7, connect and fix it through the bottom needle plate 8, install the ejector pin 207 assembly into the movable mold insert 200 and tighten it with bolts, and lock the square iron 9 and the movable mold bottom plate 10 in the first draw plate 6 with bolts, and the movable mold is assembled.

[0025] The mold opening sequence lock 210 and the outer pull plate 209 are respectively installed in the fixed mold plate 4 and the movable mold plate 5, and the movable and fixed molds are closed, and the mold assembly is completed (see Fig.10 ).

[0026] The specific mold opening process is: after the molding is completed, the movable mold side is opened, and under the action of the mold opening sequence lock 210, the fixed mold plate 4 and the movable mold plate 5 are opened first (see Figure 2 , Figure 3 ), after the mold opening sequence lock 210 is disengaged, the movable mold plate 5 and the first draw plate 6 begin to separate under the action of the outer pull plate 209, and the honeycomb insert A group 203 is first separated from the product 211 (see Figure 4 , Figure 5 ), continue to open the mold, the honeycomb insert group B 204 hanging platform contacts the honeycomb insert fixing block 205 dedicated hanging platform hole, and the honeycomb insert group B 204 is separated from the product 211 (see Figure 6 , Figure 7 ), continue to open the mold, limit the position with shoulder bolt 208, and the mold opening is completed (see Figure 8 ), the ejector pin 207 ejects the product 211.

[0027] The specific mold closing process is: after the product 211 is taken out, the mold is closed. Under the action of the mold opening sequence lock 210, the first draw plate 6 and the movable mold plate 5 are in contact with each other, the conical surface of the honeycomb insert group B 204 is matched with the angle surface of the inner wall of the honeycomb hole of the honeycomb insert 202 and reset, the mold continues to be closed, and the conical surface of the honeycomb insert group A 203 is matched with the angle surface of the inner wall of the honeycomb hole of the honeycomb insert 202 and reset (see Fig. 9 ), the mold continues to close, the fixed mold plate 4 and the movable mold plate 5 contact each other, the mold opening sequence lock 210 locks the fixed mold plate 4 and the movable mold plate 5, and the mold closing is completed (see Figure 1 , 10 ).

[0028] The above is a superior implementation mode of the present invention. It should be pointed out that for technicians in the technical field to which the present invention belongs, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. The mold of the honeycomb product can be separated from the mold through an external pull plate and a multi-step ejection mechanism, which is characterized by The structure includes: the mold frame mainly consists of a fixed mold base plate (1), a hot runner plate (2), a water inlet push plate (3), a fixed mold plate (4), a movable mold plate (5), a first extraction plate (6), a surface needle plate (7), a bottom needle plate (8), a square iron (9), and a movable mold bottom plate (10); the internal main structure consists of a fixed mold insert (100), a fixed mold insert A (101), a fixed mold insert B (102), a fixed mold insert C (103), a movable mold insert (200), a movable mold insert (201), a honeycomb insert (202), a honeycomb insert A group (203), a honeycomb insert B group (204), a honeycomb insert fixing block (205), a honeycomb insert fixing block back block (206), an ejector pin (207), a shoulder bolt (208), an outer pull plate (209 ), mold opening sequence lock (210), product (211); the connection relationship is that the movable plate (5) is provided with an ejector hole, a shoulder bolt threaded hole, an outer pull plate threaded hole, and a movable mold insert bolt hole; the movable mold insert (200) is provided with a movable mold insert hole, a threaded hole, a hanging platform hole, and an ejector hole; the movable plate (5) and the movable mold insert (200) are clearance-matched and fixed by bolts, the movable mold insert (201) is provided with a hanging platform, the movable mold insert (201) hanging platform and the hanging platform hole of the movable mold insert (200) are clearance-matched and are positioned by the hanging platform height, the honeycomb insert (202) is provided with a honeycomb hole and a hanging platform, the inner wall of the honeycomb hole is provided with an angle, the honeycomb insert (202) hanging platform and the hanging platform hole of the movable mold insert (200) are clearance-matched Through the height positioning of the hanging platform, the honeycomb insert group A (203) is provided with a hanging platform and a demoulding cone angle; the honeycomb insert group B (204) parts are provided with a hanging platform and a demoulding cone angle; the honeycomb insert fixing block (205) is provided with a honeycomb insert through hole, a hanging platform hole dedicated to the honeycomb insert group A (203), a hanging platform hole dedicated to the honeycomb insert group B (204), an ejector through hole, and a threaded hole; the honeycomb insert group A (203) and the honeycomb insert fixing block (205) are clearance matched, and are limited by the height of the hanging platform hole dedicated to the honeycomb insert group A (203); the honeycomb insert group B (204) and the honeycomb insert fixing block (205) are clearance matched, and are limited by the height of the hanging platform hole dedicated to the honeycomb insert group B (204); the honeycomb insert fixing block back block (206) Bolt holes, ejector holes and threaded holes are provided on the honeycomb inlay fixing block back block (206); the honeycomb inlay fixing block back block (206) is locked and fixed with the honeycomb inlay fixing block (205) by bolts; the first-pull plate (6) is provided with shoulder bolt holes, bolt holes and ejector holes; the first-pull plate (6) is locked and fixed with the honeycomb inlay fixing block (205) by bolts; the first-pull plate (6) is locked and fixed with the honeycomb inlay fixing block back block (206) by bolts; the first-pull plate (6) is threadedly connected and limited with the movable template (5) by shoulder bolts (208); the fixed template (4) is provided with an external pull plate bolt hole, the external pull plate (209) is provided with a bolt hole groove, and the external pull plate (209) is connected and limited with the fixed template (4) and the movable template (5) by bolts.

2. The mold for detaching a honeycomb product by an outer pull plate and a multi-step ejection mechanism as claimed in claim 1, characterized in that: When the mold is opened, under the action of the mold opening sequence lock (210), the fixed mold plate (4) and the movable mold plate (5) are opened first. After the mold opening sequence lock (210) is disengaged, the movable mold plate (5) and the first draw plate (6) begin to separate under the action of the outer pull plate (209), and the honeycomb insert group A (203) is first separated from the product (211), and the mold opening continues. The honeycomb insert group B (204) hangs on the honeycomb insert fixed block (205) and contacts the special hang hole. The honeycomb insert group B (204) is separated from the product (211), and the mold opening continues. The shoulder bolt (208) is used for limiting. The mold opening is completed, and the ejector pin (207) ejects the product (211).

3. The mold for detaching a honeycomb product by an outer pull plate and a multi-step ejection mechanism as claimed in claim 1, characterized in that: When closing the mold, under the action of the mold opening sequence lock (210), the first draw plate (6) and the movable mold plate (5) contact each other, the conical surface of the honeycomb insert group B (204) and the angle surface of the honeycomb hole inner wall of the honeycomb insert block (202) are matched and reset, the mold continues to close, the conical surface of the honeycomb insert group A (203) and the angle surface of the honeycomb hole inner wall of the honeycomb insert block (202) are matched and reset, the mold continues to close, the fixed mold plate (4) and the movable mold plate (5) contact each other, the mold opening sequence lock (210) locks the fixed mold plate (4) and the movable mold plate (5), and the mold closing is completed.

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