Automatic separation mechanism for plastic inlet of plastic mold

Abstract

The utility model belongs to the technical field of plastic molds, and discloses an automatic plastic mold glue inlet separating mechanism which comprises a fixed mold and a movable mold which are matched with each other, the fixed mold comprises a fixed mold top plate and a fixed mold base bolted to the bottom of the fixed mold top plate, and an upper mold core plate is bolted to the middle of the bottom end of the fixed mold base. The movable mold comprises a movable mold base and a pushing mechanism which is mounted at the bottom of the movable mold base and is used for ejecting a product and a water gap; according to the utility model, the two slide mechanisms and the material pushing mechanism are arranged in the movable mold base and are positioned on the two sides of the lower mold core plate, so that when the two slide blocks are separated from each other, a product can be conveniently stripped, and a drainage opening material can be snapped by the slide blocks through the first buckling positions on the slide blocks; in the process, the water gap material rotates on the sleeve and the second ejector pin, the appearance of the water gap breaking position is better, meanwhile, the sleeve can eject the water gap out, the water gap cannot fall into the slide, automatic stripping is achieved, the water gap can be automatically separated in the stripping process, manpower is saved, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to plastic mould technical field, specifically is a kind of plastic mould glue inlet automatic separation mechanism. BACKGROUND

[0002] Plastic mould is the important instrument of various industrial products batch production.In the rapid and efficient development era of industry, various industries are increasingly dependent on and require plastic, including aerospace, electronics, machinery, shipping, automotive and home fields.

[0003] In prior art, some injection products are double-cavity deep groove with side hole, generally after forming demoulding, the glue inlet water gate material is cut by artificial, so that artificial pruning work is heavy, and long time work is prone to cut product, cause bad;To this end, we provide a kind of plastic mould glue inlet automatic separation mechanism. UTILITY MODEL CONTENT

[0004] To solve the problems in the background art, the utility model provides a kind of plastic mould glue inlet automatic separation mechanism, solves the problems of low efficiency and high bad rate of artificial water gate removal.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of plastic mould glue inlet automatic separation mechanism, including mutually coordinated fixed mould and movable mould, the fixed mould includes fixed mould top plate and the fixed mould seat bolted to its bottom, the bottom end middle part of the fixed mould seat is bolted with upper die board, the movable mould includes movable mould seat and the pusher mechanism for ejecting product and water gate installed at its bottom, the top end middle part of the movable mould seat is bolted with lower die board, the top end middle part of the lower die board is equipped with recess, the recess is integrally formed with two symmetrically distributed forming lugs in middle part, the recess is provided with second runner between two forming lugs in middle part, the top end of the movable mould seat and the both sides of lower die board are equipped with installation groove, the inside of two installation grooves is equipped with line position mechanism for cutting off water gate.

[0006] Preferably, the bottom end middle part of the upper die board is equipped with forming recess matched with forming lug, and the top of product can be formed between forming recess and forming lug, the bottom end middle part of the fixed mould seat and the both sides of upper die board are equipped with slope, two slopes are in the shape of eight characters, and the lower surface of the upper die board is in contact with two line position mechanisms.

[0007] Preferably, the two row blocks are L-shaped, and the side of each block away from the other is provided with a slope. The row blocks are slidingly fitted in the installation slot, and the two sides of the installation slot are provided with sliding grooves. The two sides of the end of the row block close to the slope are integrally formed with sliding blocks. The end of the row block away from the slope and corresponding to the two formed protrusions is provided with two side formed grooves, and the corresponding formed protrusions and formed grooves together enclose a product forming cavity.

[0008] Preferably, the slope is slidingly fitted with the slope surface, the end of the sliding block away from the row block is slidingly fitted in the sliding groove, and the inner wall of the end of the row block close to the side formed groove is slidingly fitted with the inner bottom wall of the groove. The middle part of the inner wall of the end of the row block close to the slope and the middle part of the inner wall of the installation slot are each provided with two symmetrical circular holes. The two circular holes are fixedly connected with a reset spring, and the end of the two row blocks in contact with each other is provided with a sprue.

[0009] Preferably, the bottom end corner of the side of the two row blocks in contact with each other and between the two side formed grooves is provided with a first flow channel in communication with the sprue. The two first flow channels and the second flow channel together enclose a complete injection flow channel. The end of the first flow channel close to the side formed groove is provided with a first buckle, and the two first buckles are staggered. The two ends of the second flow channel are provided with second buckles staggered.

[0010] Preferably, the pushing mechanism comprises a bottom plate, and the two ends of the upper surface of the bottom plate are bolted with support blocks. The middle part of the bottom plate is provided with a second ejector pin through an insert block. The middle part of the bottom plate between the two support blocks is provided with four first guide columns. The first pushing plate and the second pushing plate are provided between the two support blocks. The middle part of the bottom end of the second pushing plate and the position corresponding to each formed protrusion are each provided with four first ejector pins. The middle part of the bottom end of the second pushing plate and the position corresponding to the middle part of the second flow channel are provided with a sleeve. The top end of the second ejector pin slidingly penetrates the first pushing plate and the sleeve and extends upward.

[0011] Preferably, the bottom plate support block and the movable die seat are bolted through long screws, both ends of the first pushing plate and both ends of the second pushing plate are bolted through bolts, and both the first pushing plate and the second pushing plate are slidably connected to the first guide column through the sliding sleeve, the top end of the first ejector pin and the top end of the sleeve are both slidably penetrated through the movable die seat, the top end of the sleeve and the top end of the second ejector pin are both located inside the movable die seat, the middle part of the second flow channel is provided with a through hole matched with the sleeve, the bottom end of the second pushing plate is provided with a second guide column at four corners, and the second guide column is slidably penetrated through the inside of the movable die seat.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a pushing mechanism and two row position mechanisms are arranged in the movable die seat and at the both sides of the lower die core plate, when the two row position blocks separate from each other, not only can the product be stripped, but also the row position block can pull and break the nozzle material through the first buckling on it, in this process, the nozzle material rotates on the sleeve and the second ejector pin, so that the appearance of the broken nozzle is better, and the sleeve can eject the nozzle, so that the nozzle does not fall into the row position, so that the nozzle can be automatically separated in the stripping process, manpower is saved, and production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the fixed die and movable die separation structure schematic diagram of the utility model;

[0016] Figure 3 It is the explosion structure schematic diagram of the utility model;

[0017] Figure 4 It is the movable die seat three -dimensional structure schematic diagram of the utility model;

[0018] Figure 5 It is the movable die seat and row position mechanism explosion structure schematic diagram of the utility model;

[0019] Figure 6 It is the movable die seat sectional structure schematic diagram of the utility model;

[0020] Figure 7 It is the row position block three -dimensional structure schematic diagram of the utility model.

[0021] In the diagram: 1. Fixed mold; 101. Fixed mold top plate; 102. Fixed mold base; 103. Upper mold core plate; 2. Moving mold; 201. Moving mold base; 202. Lower mold core plate; 203. Groove; 204. Forming protrusion; 205. Mounting groove; 206. Slide groove; 207. Sliding block; 208. Inclined surface; 209. Sliding block; 210. Side forming groove; 211. First runner; 212. First snap-fit; 213. Round hole; 214. Return spring; 3. Ejector mechanism; 301. Base plate; 302. Support block; 303. First guide post; 304. First ejector plate; 305. Second ejector plate; 306. First ejector pin; 307. Second ejector pin; 308. Sleeve; 309. Second guide post. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-7 As shown, this utility model provides an automatic separation mechanism for the sprue of a plastic mold, including a fixed mold 1 and a moving mold 2 that cooperate with each other. The fixed mold 1 includes a fixed mold top plate 101 and a fixed mold base 102 bolted to its bottom. An upper mold core plate 103 is bolted to the center of the bottom end of the fixed mold base 102. The moving mold 2 includes a moving mold base 201 and a pusher mechanism 3 installed at its bottom for ejecting the product and sprue. A lower mold core plate 202 is bolted to the center of the top end of the moving mold base 201. A groove 203 is provided in the center of the top end of the lower mold core plate 202. Two symmetrically distributed forming protrusions are integrally formed in the center of the groove 203. 204, a second flow channel is provided in the middle of the groove 203 and between the two forming protrusions 204. The top of the moving mold base 201 and both sides of the lower mold core plate 202 are provided with mounting grooves 205. The interior of the two mounting grooves 205 is provided with a sliding mechanism for pulling off the sprue. The fixed mold 1 and the moving mold 2 are installed on the injection molding machine. The fixed mold top plate 101, the fixed mold base 102 and the upper mold core plate 103 are provided with nozzles in the middle, and the nozzles are connected to the middle of the second flow channel. After the mold is closed, the upper mold core plate 103, the lower mold core plate 202, the forming protrusions 204 and the sliding mechanism together form the product mold cavity.

[0024] Furthermore, the bottom center of the upper mold core plate 103 is provided with a forming groove that cooperates with the forming protrusion 204, and the top of the product can be formed between the forming groove and the forming protrusion 204. The bottom center of the fixed mold base 102 and both sides of the upper mold core plate 103 are provided with ramps, the two ramps are in the shape of an octagon, and the lower surface of the upper mold core plate 103 is in contact with the two sliding mechanisms.

[0025] Further, the two row blocks 207 are L-shaped, and the side away from each other of the two row blocks 207 is provided with a slope 208. The row block 207 is slidingly fitted in the installation slot 205, and the two sides of the installation slot 205 are provided with a sliding slot 206. The two sides of the end of the row block 207 close to the slope 208 are integrally formed with a sliding block 209. The end of the two row blocks 207 away from the slope 208 contacts each other. The end of the row block 207 away from the slope 208 and corresponding to the two formed protrusions 204 is provided with two side formed grooves 210. The corresponding formed protrusions 204 and the corresponding formed grooves jointly enclose a product forming cavity with respect to the two side formed grooves 210. The upper surface of the row block 207 and the upper surface of the lower die core plate 202 are on the same plane.

[0026] Further, the slope 208 is slidingly fitted with the slope surface. The end of the sliding block 209 away from the row block 207 is slidingly fitted in the sliding slot 206. The end of the row block 207 close to the side formed groove 210 is slidingly fitted with the inner bottom wall of the groove 203. The middle part of the end of the row block 207 close to the slope 208 and the middle part of the inner wall of the installation slot 205 are provided with two symmetrical round holes 213. The two round holes 213 are fixedly connected with a reset spring 214. The middle part of the end of the two row blocks 207 contacting each other is provided with a sprue. When the mold is closed, the movable die holder 201 is close to the fixed die holder 102, so that the slope surface can extrude the slope 208. The two row blocks 207 are stressed and close to each other. The row block 207 moves in the installation slot 205 while driving the sliding block 209 to slide in the sliding slot 206. When the two row blocks 207 close to each other, the reset spring 214 can be compressed. Until the mold is closed, the product forming cavity is jointly enclosed by the two side formed grooves 210, the corresponding formed protrusions 204 and the corresponding formed grooves. When the mold is opened, the injection molding machine drives the movable die 2 to separate from the fixed die 1. The slope 208 slides on the slope surface and drives the two row blocks 207 to move away from each other under the reset action of the reset spring 214.

[0027] Further, the bottom end side corners of the two row blocks 207 in contact with each other and located between the two side forming grooves 210 are each provided with a first runner 211 in communication with the gate, and the two first runners 211 and the second runner together enclose a complete injection runner, and each of the two first runners 211 is provided with a first buckle 212 at one end close to the side forming groove 210, and the two first buckles 212 are staggered, and the two ends of the second runner are each provided with a second buckle in staggered distribution, and the first buckle 212 and the corresponding second buckle together form a buckle cavity; wherein one end of the first runner 211 close to the first buckle 212 is in communication with the side forming groove 210, and the first buckle 212 is a protruding groove extending obliquely from the end of the first runner 211 to one side, and when the two row blocks 207 move away from each other, the first buckles 212 are inclined at an angle and the length of the first buckles 212 is 0.5-1mm, so that when the two row blocks 207 move away in opposite directions, the first buckles 212 on them can pull off the water gap, thereby realizing self-euro east water gap material.

[0028] Further, the pushing mechanism 3 comprises a bottom plate 301, both ends of the upper surface of the bottom plate 301 are bolted with support blocks 302, the middle part of the bottom plate 301 is provided with a second ejector pin 307 through an insert block, the middle part of the bottom plate 301 and between the two support blocks 302 are provided with four first guide columns 303, between the two support blocks 302 are provided with a first pushing plate 304 and a second pushing plate 305, the bottom end middle part of the second pushing plate 305 and at a position corresponding to each forming protrusion 204 are each provided with four first ejector pins 306, the bottom end middle part of the second pushing plate 305 and at a position corresponding to the middle part of the second runner are provided with a sleeve 308, the top end of the second ejector pin 307 slides through the first pushing plate 304 and the sleeve 308 and extends upward; when demolding, the injection molding machine drives the bottom plate 301 to move, so that the bottom plate 301 drives the support blocks 302, the second ejector pin 307, the first pushing plate 304, the second pushing plate 305 and the movable die seat 201 to move, so that the movable die seat 201 is separated from the fixed die seat 102, and at the same time when the bottom plate 301 moves a set distance, the pushing rod is inserted into the bottom plate 301 and abuts against the first pushing plate 304, under the continuous driving of the injection molding machine, the bottom plate 301 continues to move, so that the pushing rod drives the first pushing plate 304 to move relative to the bottom plate 301, the first ejector pin 306 moves relative to the movable die seat 201, and the sleeve 308 moves relative to the second ejector pin 307.

[0029] Further, the bottom plate 301 supports the block 302 and the movable die seat 201 through long screws, the two ends of the first pushing plate 304 and the two ends of the second pushing plate 305 are bolted, and the first pushing plate 304 and the second pushing plate 305 are both slidably fitted on the first guide column 303, the top end of the first ejector pin 306 and the top end of the sleeve 308 are both slidably penetrated through the movable die seat 201, wherein the top end of the four first ejector pins 306 penetrates through the four corners of the corresponding forming protrusion 204, the top end of the sleeve 308 and the top end of the second ejector pin 307 are both located inside the movable die seat 201, the middle part of the second runner is provided with a through hole matched with the sleeve 308, the bottom end of the second pushing plate 305 is provided with a second guide column 309 at the four corners, and the second guide column 309 is slidably penetrated through the inside of the movable die seat 201; as described above, the stripper block 207 can pull the runner material to break during the parting process through the first buckle 212, and due to the distance between the second ejector pin 307 and the through hole in the middle part of the second runner, the runner column can be formed at the top end of the second ejector pin 307 during injection molding, and when the runner material is pulled to break by the stripper block 207, the runner material can rotate between the second ejector pin 307 and the through hole, when the first ejector pin 306 moves relative to the movable die seat 201, the sleeve 308 moves relative to the second ejector pin 307, the first ejector pin 306 ejects the product, and the sleeve 308 ejects the runner material, avoiding the runner material remaining on the stripper block, facilitating subsequent injection molding.

[0030] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or inherent to such process, method, article or device.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A plastic mold gate automatic separation mechanism, characterized by, The utility model provides a mould for producing a product, which comprises a fixed mould (1) and a movable mould (2) matched with each other, the fixed mould (1) comprises a fixed mould top plate (101) and a fixed mould base (102) bolted to the bottom of the fixed mould top plate (101), the middle part of the bottom end of the fixed mould base (102) is bolted with an upper die core plate (103), the movable mould (2) comprises a movable mould base (201) and a pushing mechanism (3) for ejecting products and water gates installed on the bottom of the movable mould base (201), the middle part of the top end of the movable mould base (201) is bolted with a lower die core plate (202), the middle part of the top end of the lower die core plate (202) is provided with a groove (203), the middle part of the groove (203) is integrally formed with two symmetrically distributed forming protrusions (204), the middle part of the groove (203) and between the two forming protrusions (204) is provided with a second runner, the top end of the movable mould base (201) and on both sides of the lower die core plate (202) are provided with installation grooves (205), and the interiors of the two installation grooves (205) are provided with line position mechanisms for breaking off water gates.

2. The automatic separating mechanism of a plastic mold gate according to claim 1, characterized in that: The middle part of the bottom end of the upper die core plate (103) is provided with a forming groove matched with the forming protrusion (204), and the forming groove and the forming protrusion (204) can form the top of the product, the middle part of the bottom end of the fixed mould base (102) and on both sides of the upper die core plate (103) are provided with slopes, and the two slopes are in the shape of an eight character, and the lower surface of the upper die core plate (103) is in contact with the two line position mechanisms.

3. The automatic separating mechanism of a plastic mold gate according to claim 2, characterized in that: The two line position mechanisms each comprise an L-shaped line position block (207), and the sides of the two line position blocks (207) away from each other are provided with inclined surfaces (208), the line position block (207) is slidingly matched in the interior of the installation groove (205), the two sides of the installation groove (205) are provided with sliding grooves (206), the two sides of the end of the line position block (207) close to the inclined surface (208) are integrally formed with sliding blocks (209), the ends of the two line position blocks (207) away from the inclined surface (208) are in contact with each other, the ends of the line position block (207) away from the inclined surface (208) and corresponding to the positions of the two forming protrusions (204) are provided with two side forming grooves (210), and the two side forming grooves (210), the corresponding forming protrusions (204) and the corresponding forming grooves jointly enclose a product forming cavity.

4. The automatic separating mechanism of a plastic mold gate according to claim 3, characterized in that: The inclined surface (208) is slidingly matched with the slope, the end of the sliding block (209) away from the line position block (207) is slidingly matched in the interior of the sliding groove (206), the inner wall of the end of the line position block (207) close to the side forming groove (210) is slidingly matched with the inner bottom wall of the groove (203), the middle part of the inner wall of the end of the line position block (207) close to the inclined surface (208) and the middle part of the inner wall of one side of the installation groove (205) are each provided with two symmetrically distributed round holes (213), the interiors of the two round holes (213) are fixedly connected with return springs (214), and the middle part of the end of the two line position blocks (207) in contact with each other is provided with a gate.

5. The automatic separating mechanism of a plastic mold gate according to claim 4, characterized in that: Two sides of the row block (207) are provided with first flow channels (211) which are communicated with the gate, and the first flow channels (211) and the second flow channel jointly form a complete injection flow channel, and the first flow channels (211) are provided with first buckling positions (212) near the side forming grooves (210), and the first buckling positions (212) are staggered, and the second flow channel is provided with second buckling positions which are staggered, and the first buckling position (212) and the corresponding second buckling position jointly form a buckling cavity.

6. The automatic separating mechanism of a plastic mold gate according to claim 1, characterized in that: The pushing mechanism (3) comprises a bottom plate (301), the upper surface of the bottom plate (301) is provided with support blocks (302) at both ends, the middle part of the bottom plate (301) is provided with a second ejector pin (307) through an insert block, the middle part of the bottom plate (301) between the two support blocks (302) is provided with four first guide columns (303), the first pushing plate (304) and the second pushing plate (305) are arranged between the two support blocks (302), the bottom end of the second pushing plate (305) is provided with four first ejector pins (306) at the positions corresponding to each forming protrusion (204), and the bottom end of the second pushing plate (305) is provided with a sleeve (308) at the position corresponding to the middle part of the second flow channel.

7. The automatic separating mechanism of a plastic mold gate according to claim 6, characterized in that: The bottom plate (301), the support block (302) and the movable die seat (201) are bolted through long screws, the two ends of the first pushing plate (304) and the two ends of the second pushing plate (305) are bolted through bolts, the first pushing plate (304) and the second pushing plate (305) are slidably connected to the first guide column (303) through a sliding sleeve, the top ends of the first ejector pin (306) and the sleeve (308) are slidably connected to the movable die seat (201), the top ends of the four first ejector pins (306) are connected to the four corners of the corresponding forming protrusion (204), the top ends of the sleeve (308) and the second ejector pin (307) are located in the movable die seat (201), the middle part of the second flow channel is provided with a through hole matched with the sleeve (308), and the bottom end of the second pushing plate (305) is provided with a second guide column (309) at the four corners, and the second guide column (309) is slidably connected to the inside of the movable die seat (201).

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