CN223395690U - Injection mold demoulding structure for producing long-size parts - Google Patents
Injection mold demoulding structure for producing long-size partsInfo
- Publication number
- CN223395690U CN223395690U CN202422417318.1U CN202422417318U CN223395690U CN 223395690 U CN223395690 U CN 223395690U CN 202422417318 U CN202422417318 U CN 202422417318U CN 223395690 U CN223395690 U CN 223395690U
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- mold
- injection molding
- injection
- sliding column
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Abstract
本实用新型公开了一种长尺寸部件生产用注塑模具脱模结构，涉及注塑脱模技术领域，包括固定在注塑机底座上的定模，所述定模内设有注塑腔，所述定模右侧面设有动模，所述定模与动模之间通过定位结构连接，所述动模右端设有注塑口，所述定模左端设有组合式推出机构，所述定模上设有降低定模自身温度的冷却组件。本实用新型设置组合式推出机构，通过直接推动和高压气体推动相结合的方式，缩短了滑动柱往复运动的行程，减小了模具所占用的空间，加快了注塑件脱模速度，提高了生产效率。
The utility model discloses a demolding structure for an injection mold used in the production of long-sized parts, relating to the field of injection molding demolding technology. The structure comprises a fixed mold fixed to the base of an injection molding machine, an injection cavity being provided within the fixed mold, a movable mold being provided on the right side of the fixed mold, the fixed mold and movable mold being connected by a positioning structure, an injection port being provided at the right end of the movable mold, and a combined ejection mechanism being provided at the left end of the fixed mold. The fixed mold is provided with a cooling assembly for lowering the temperature of the fixed mold itself. The utility model provides a combined ejection mechanism, which shortens the reciprocating stroke of the sliding column by combining direct propulsion with high-pressure gas propulsion, reduces the space occupied by the mold, accelerates the ejection speed of the injection molded part, and improves production efficiency.
Description
Technical Field
The utility model relates to the technical field of injection molding and demolding, in particular to an injection mold demolding structure for producing long-size parts.
Background
Injection molding refers to injecting heated and melted plastic into an injection mold at high pressure by an injection molding machine, cooling the plastic injected into the mold and demolding to obtain a formed plastic product, wherein the dimensional accuracy of the formed plastic product depends on the accuracy of the mold to a great extent, the injection molding production of the overlong plastic product requires an overlong injection mold, under the same accuracy requirement, the overlong injection mold is difficult to process, in order to ensure the dimensional accuracy of the overlong part of the mold, high-strength low-deformation materials such as high-strength alloy steel are generally adopted in the aspect of materials, or the overlong part is segmented to process and assemble during production, so that the final error of the mold is reduced, proper cooling measures are adopted to reduce the thermal deformation of the mold during processing of the mold, and a laser measuring instrument or a three-coordinate measuring instrument is adopted to accurately measure the mold in time in the processing process of the mold, so that the processing scheme is adjusted in time to reduce the error of the mold.
When utilizing the injection mold batch production long dimension working of plastics of long dimension, the drawing of patterns degree of difficulty is higher, has recorded a major axis water-cooling injection mold in the patent document of bulletin number CN213035191U, and this injection mold utilizes the length to promote the ejector pin that the ejector pad will injection mold the injection molding to push out the chamber of moulding plastics and realize the drawing of patterns with injection molding, and this structure makes the whole length of mould longer, and area is great, and needs longer telescoping device to drive the thimble and remove, and the stroke of thimble is longer during the drawing of patterns, and the drawing of patterns speed is slower.
Based on the above, the injection mold demolding structure for producing the long-size part can eliminate the defects of the prior device.
Disclosure of utility model
The utility model aims to provide an injection mold demolding structure for producing long-size parts, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an injection mold drawing of patterns structure is used in production of long size part, includes the cover half of fixing on the injection molding machine base, be equipped with the chamber of moulding plastics in the cover half, the cover half right flank is equipped with the movable mould, connect through location structure between cover half and the movable mould, the movable mould right-hand member is equipped with the mouth of moulding plastics, the cover half left end is equipped with combined type pushing mechanism, be equipped with the cooling module that reduces cover half self temperature on the cover half.
Based on the technical scheme, the utility model also provides the following optional technical schemes:
In an alternative scheme, the positioning structure comprises a positioning hole arranged on the right side face of the fixed die, a positioning column is arranged on the left side face of the movable die corresponding to the positioning hole, and the inner diameter of the positioning hole is matched with the outer diameter of the positioning column.
In an alternative scheme, the combined pushing mechanism comprises a sliding cylinder arranged on the left end face of the fixed die, the sliding cylinder is communicated with the injection molding cavity, a sliding column is arranged in the sliding cylinder in a sliding mode, a limiting groove is formed in the left side face of the injection molding cavity and corresponds to the sliding cylinder, a limiting block is arranged in the limiting groove in a sliding mode, the depth of the limiting groove is equal to the thickness of the limiting block, the right end of the sliding column is connected with the left end of the limiting block, the left end of the sliding column is connected with a driving module which drives the sliding column to slide in the sliding cylinder in a reciprocating mode, and a gas conveying structure for pushing an injection molding part to be demolded is arranged on the sliding column.
In an alternative scheme, the driving module comprises a fixed plate arranged on a base of the injection molding machine, an electric telescopic cylinder is horizontally arranged on the right side surface of the fixed plate, the free end of the electric telescopic cylinder is connected with a lower connecting plate, a connecting groove is formed in the position, close to the left end, of the outer side of the sliding column, the top of the lower connecting plate is inserted into the connecting groove from the lower side, an upper connecting plate is arranged above the lower connecting plate, the upper connecting plate is inserted into the connecting groove from the upper side, and the upper connecting plate is connected with the lower connecting plate through a bolt.
In an alternative scheme, the gas conveying structure comprises a gas conveying blind hole arranged on the left end face of the sliding column, a gas conveying through hole communicated with the side face of the sliding column is arranged at the bottom of the gas conveying blind hole, a gas pipe interface is arranged at the position, corresponding to the gas conveying blind hole, of the left end face of the sliding column, a sealing piece in contact with the outer side face of the sliding column is arranged in the sliding cylinder, and the distance from the sealing piece to the left side face of the injection molding cavity is smaller than the distance from the gas conveying through hole to the right side face of the limiting block.
In an alternative scheme, the sealing piece comprises a sealing groove arranged in the sliding cylinder, a sealing ring is arranged in the sealing groove, and the inner ring of the sealing ring is tightly attached to the outer surface of the sliding column.
In an alternative scheme, the cooling assembly comprises a plurality of cooling water blind holes which are arranged on the left end face of the fixed die and surround the injection molding cavity, the cooling water blind holes are distributed on the periphery of the injection molding cavity in a square shape, communication blind holes are formed in positions, corresponding to the right ends of the cooling water blind holes on the upper part and the lower part, on the front side face of the fixed die, of the cooling water blind holes, a sealing cover is connected at the opening of the communication blind holes in a threaded manner, water outlet blind holes are formed in positions, corresponding to the right ends of the cooling water blind holes on the front part and the rear part, of the upper surface of the fixed die, a water outlet pipe interface is arranged at the opening of the water outlet blind holes, a water distribution box is arranged on the left side face of the fixed die, the water distribution box is communicated with the left ends of all the cooling water blind holes, and a water inlet is formed in the left end face of the water distribution box.
In an alternative, the inner wall of the injection cavity is provided with a Teflon coating.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the combined pushing mechanism is arranged, and the reciprocating motion stroke of the sliding column is shortened by combining direct pushing and high-pressure gas pushing, so that the space occupied by a die is reduced, the demolding speed of an injection molding part is accelerated, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic view of the front view angle structure of the present utility model.
FIG. 2 is a schematic view of the rear side view angle structure of the present utility model.
Fig. 3 is a schematic view of the front and left side cross-section of the present utility model.
Fig. 4 is a schematic view of a front cross-sectional structure of the present utility model.
Fig. 5 is an enlarged view of a portion of fig. 4 a in accordance with the present utility model.
Fig. 6 is an enlarged view of a portion of B of fig. 4 in accordance with the present utility model.
Fig. 7 is a schematic view of the right side cross-sectional structure of the present utility model.
Reference numerals are annotated as 101, fixed mold, 102, movable mold, 103, injection cavity, 104, injection port, 105, positioning hole, 106, positioning column, 201, sliding cylinder, 202, limit groove, 203, sliding column, 204, limiting block, 205, gas transmission blind hole, 206, gas transmission through hole, 207, gas pipe interface, 208, sealing groove, 209, sealing ring, 301, upper connecting plate, 302, lower connecting plate, 303, fixed plate, 304, electric telescopic cylinder, 305, connecting groove, 401, cooling water blind hole, 402, communicating blind hole, 403, water outlet blind hole, 404, water outlet pipe interface, 405, sealing cover, 406, water distribution box, 407 and water inlet.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
In one embodiment, as shown in fig. 1-7, an injection mold demolding structure for producing long-size components comprises a fixed mold 101 fixed on a base of an injection molding machine, an injection molding cavity 103 is arranged in the fixed mold 101, a movable mold 102 is arranged on the right side surface of the fixed mold 101, the fixed mold 101 is connected with the movable mold 102 through a positioning structure, an injection molding port 104 is arranged at the right end of the movable mold 102, a combined pushing mechanism is arranged at the left end of the fixed mold 101, and a cooling assembly for reducing the temperature of the fixed mold 101 is arranged on the fixed mold 101.
In this embodiment, during injection molding, the movable mold 102 is tightly pressed against the fixed mold 101, the injection molding machine injects molten plastic into the injection molding cavity 103 from the injection port 104, the temperature of the fixed mold 101 is reduced through the cooling component after injection molding is finished, the plastic in the injection molding cavity 103 is cooled, and the combined pushing structure pushes the cooled injection molding piece out of the injection molding cavity 103 rapidly through a combination of direct pushing and high-pressure gas pushing to achieve demolding.
In one embodiment, as shown in fig. 3, the positioning structure includes a positioning hole 105 disposed on the right side surface of the fixed mold 101, a positioning post 106 is disposed on the left side surface of the movable mold 102 corresponding to the position of the positioning hole 105, and the inner diameter of the positioning hole 105 is matched with the outer diameter of the positioning post 106, so as to improve the stability degree when the fixed mold 101 is combined with the movable mold 102.
In one embodiment, as shown in fig. 1 and fig. 4-fig. 6, the combined pushing mechanism includes a sliding cylinder 201 disposed on a left end face of the fixed mold 101, the sliding cylinder 201 is communicated with the injection cavity 103, a sliding column 203 is slidably disposed in the sliding cylinder 201, a limit groove 202 is disposed on a left side face of the injection cavity 103 and corresponds to the position of the sliding cylinder 201, a limit block 204 is slidably disposed in the limit groove 202, a depth of the limit groove 202 is equal to a thickness of the limit block 204, a right end of the sliding column 203 is connected with a left end of the limit block 204, a left end of the sliding column 203 is connected with a driving module driving the sliding column 203 to reciprocate in the sliding cylinder 201, a gas conveying structure for pushing the injection molding piece to be demolded is disposed on the sliding column 203, during injection molding, the limit block 204 is clamped in the limit groove 202, a right end face of the limit block 204 is flush with a left side face of the injection cavity 103, and after injection molding is finished, the driving module drives the sliding column 203 to move right to push the injection molding piece in the injection cavity 103 to move right, and an air outlet of the gas conveying structure is turned from a closed state to an open state and is communicated with a left side space of the injection molding piece in the injection cavity 103 to move right side of the injection molding cavity 103 until injection molding piece is pushed to move right continuously.
In one embodiment, as shown in fig. 1, fig. 4 and fig. 5, the driving module comprises a fixing plate 303 arranged on a base of the injection molding machine, an electric telescopic cylinder 304 is horizontally arranged on the right side surface of the fixing plate 303, a free end of the electric telescopic cylinder 304 is connected with a lower connecting plate 302, a connecting groove 305 is arranged at a position, close to the left end, of the outer side of the sliding column 203, the top of the lower connecting plate 302 is inserted into the connecting groove 305 from below, an upper connecting plate 301 is arranged above the lower connecting plate 302, the upper connecting plate 301 is inserted into the connecting groove 305 from above, the upper connecting plate 301 and the lower connecting plate 302 are connected through bolts, the electric telescopic cylinder 304 drives the lower connecting plate 302 to move left and right, and the lower connecting plate 302 is matched with the upper connecting plate 301 to drive the sliding column 203 to slide left and right in the sliding cylinder 201.
In one embodiment, as shown in fig. 4 and fig. 6, the gas conveying structure includes a gas conveying blind hole 205 disposed on a left end face of the sliding column 203, a gas conveying through hole 206 communicated with a side face of the sliding column 203 is disposed at a bottom of the gas conveying blind hole 205, a gas pipe interface 207 is disposed at a position corresponding to the gas conveying blind hole 205 on the left end face of the sliding column 203, a sealing member in contact with an outer side face of the sliding column 203 is disposed in the sliding cylinder 201, a distance from the sealing member to the left side face of the injection cavity 103 is smaller than a distance from the gas conveying through hole 206 to a right side face of the limiting block 204, after the right end of the sliding column 203 enters the injection cavity 103, the gas conveying through hole 206 is communicated with the injection cavity 103, and high-pressure gas enters the injection cavity 103 from the gas conveying through hole 206 via the gas pipe interface 207 and the gas conveying blind hole 205, so as to push the injection molded member in the injection cavity 103 to move rightward and separate from the injection cavity 103.
In one embodiment, as shown in fig. 6, the sealing member includes a sealing groove 208 disposed in the sliding barrel 201, a sealing ring 209 is disposed in the sealing groove 208, an inner ring of the sealing ring 209 is closely attached to an outer surface of the sliding post 203, and when the gas transmission through hole 206 is located at a left side of the sealing member, gas cannot enter into the injection molding cavity 103 to affect injection molding quality.
In one embodiment, as shown in fig. 3, fig. 4 and fig. 7, the cooling assembly includes a plurality of cooling water blind holes 401 disposed around the injection cavity 103 and disposed on the left end surface of the fixed mold 101, the cooling water blind holes 401 are distributed on the periphery of the injection cavity 103 in a square shape, a communicating blind hole 402 is disposed on the front side surface of the fixed mold 101 and corresponds to the right end of the cooling water blind holes 401 on the upper portion and the lower portion, a screw thread connection sealing cover 405 is disposed on the opening of the communicating blind hole 402, a water outlet blind hole 403 is disposed on the upper surface of the fixed mold 101 and corresponds to the right end of the cooling water blind holes 401 on the front portion and the rear portion, a water outlet port 404 is disposed on the opening of the water outlet blind hole 403, a water diversion tank 406 is disposed on the left side surface of the fixed mold 101, the water diversion tank 406 is communicated with the left end of all cooling water blind holes 401, a water inlet 407 is disposed on the left end surface of the water diversion tank 406, cooling water enters the water diversion tank 406 from the water inlet 407, the water diversion blind holes 401 cool down the fixed mold 101, the communicating blind holes 401 on the upper portion with the cooling water blind holes 401 and the cooling water blind holes 403 are connected with the cooling water blind holes 403, the cooling water holes 401 on the front portion and the cooling water blind holes 401 are connected with the cooling water blind holes 401, and the cooling water outlet water holes 401 are connected with the cooling water through the water outlet blind holes 401, and the cooling water outlet water through the water through water diversion tank 401.
In one embodiment, as shown in fig. 3, the inner wall of the injection cavity 103 is provided with a teflon coating to facilitate demolding of the injection molded part within the injection cavity 103.
The embodiment discloses an injection mold demoulding structure for long-size part production, during injection molding, movable mould 102 sticiss cover half 101, stopper 204 card is in spacing groove 202, stopper 204 right-hand member face flushes with the left surface of injection molding cavity 103, the injection molding machine is from injection molding mouth 104 with molten plastics injection molding cavity 103 in, after the injection molding, cooling water gets into shunt box 406 from water inlet 407, the rivers cooling water blind hole 401 in the shunt box 406, cool down cover half 101, the hot water after receiving cover half 101 heating is discharged through intercommunication blind hole 402 and play water blind hole 403, after the injection molding cooling, electric telescopic cylinder 304 drives down connecting plate 302 and moves about, lower connecting plate 302 cooperates upper connecting plate 301 to drive sliding column 203 to slide in slide tube 201, sliding column 203 drives stopper 204 to move to the right, at this moment the gas-supply through hole 206 on the sliding column 203 communicates with injection molding cavity 103, the high-pressure gas is through air pipe interface 207 and gas-supply blind hole 205 from the position entering into injection molding cavity 103, promote the injection molding cavity 103 to continue to move to the right fast to break away from injection molding cavity 103, after the cooling of the cover half 101, electric telescopic cylinder 304 drives down connecting plate 302 and moves about, the sliding column 203 moves down in a limit wheel after the completion of the left-side of the sliding column 204, after the injection molding is completed, and the limit wheel is moved down in the sliding column 204.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (7)
1. The injection mold demolding structure for producing the long-size part comprises a fixed mold (101) fixed on a base of an injection molding machine, wherein an injection molding cavity (103) is arranged in the fixed mold (101), and a movable mold (102) is arranged on the right side surface of the fixed mold (101);
The injection molding device is characterized in that the fixed die (101) is connected with the movable die (102) through a positioning structure, an injection molding port (104) is formed in the right end of the movable die (102), a combined pushing mechanism is arranged at the left end of the fixed die (101), and a cooling assembly for reducing the temperature of the fixed die (101) is arranged on the fixed die (101);
The combined pushing mechanism comprises a sliding cylinder (201) arranged on the left end face of a fixed die (101), the sliding cylinder (201) is communicated with an injection molding cavity (103), a sliding column (203) is arranged in the sliding cylinder (201), a limiting groove (202) is formed in the left side face of the injection molding cavity (103) and corresponds to the position of the sliding cylinder (201), a limiting block (204) is arranged in the sliding of the limiting groove (202), the depth of the limiting groove (202) is equal to the thickness of the limiting block (204), the right end of the sliding column (203) is connected with the left end of the limiting block (204), the left end of the sliding column (203) is connected with a driving module which drives the sliding column (203) to slide back and forth in the sliding cylinder (201), and a gas conveying structure for pushing an injection molding piece to be demolded is arranged on the sliding column (203).
2. The injection mold stripping structure for producing long-size parts according to claim 1, wherein the positioning structure comprises a positioning hole (105) arranged on the right side surface of the fixed mold (101), a positioning column (106) is arranged on the left side surface of the movable mold (102) corresponding to the positioning hole (105), and the inner diameter of the positioning hole (105) is matched with the outer diameter of the positioning column (106).
3. The injection mold demolding structure for producing long-size components according to claim 1, wherein the driving module comprises a fixing plate (303) arranged on a base of an injection molding machine, an electric telescopic cylinder (304) is horizontally arranged on the right side surface of the fixing plate (303), a lower connecting plate (302) is connected to the free end of the electric telescopic cylinder (304), a connecting groove (305) is formed in the position, close to the left end, of the outer side of the sliding column (203), the top of the lower connecting plate (302) is inserted into the connecting groove (305) from the lower side, an upper connecting plate (301) is arranged above the lower connecting plate (302), the upper connecting plate (301) is inserted into the connecting groove (305) from the upper side, and the upper connecting plate (301) and the lower connecting plate (302) are connected through bolts.
4. The injection mold demolding structure for producing long-size components according to claim 1, wherein the gas conveying structure comprises a gas conveying blind hole (205) arranged on the left end face of the sliding column (203), a gas conveying through hole (206) communicated with the side face of the sliding column (203) is arranged at the bottom of the gas conveying blind hole (205), a gas pipe interface (207) is arranged at the position, corresponding to the gas conveying blind hole (205), of the left end face of the sliding column (203), a sealing piece in contact with the outer side face of the sliding column (203) is arranged in the sliding cylinder (201), and the distance from the sealing piece to the left side face of the injection molding cavity (103) is smaller than the distance from the gas conveying through hole (206) to the right side face of the limiting block (204).
5. The injection mold stripping structure for producing long-sized parts according to claim 4, wherein the sealing member comprises a sealing groove (208) arranged in the sliding cylinder (201), a sealing ring (209) is arranged in the sealing groove (208), and an inner ring of the sealing ring (209) is closely attached to the outer surface of the sliding column (203).
6. The injection mold demolding structure for producing long-size parts according to claim 1, wherein the cooling assembly comprises a plurality of cooling water blind holes (401) arranged around an injection molding cavity (103) and arranged on the left end face of a fixed mold (101), the cooling water blind holes (401) are distributed on the periphery of the injection molding cavity (103) in a square shape, a communicating blind hole (402) is arranged at the position, corresponding to the right ends of the cooling water blind holes (401) on the upper portion and the lower portion, on the front side face of the fixed mold (101), a sealing cover (405) is connected at the opening of the communicating blind hole (402) through threads, a water outlet blind hole (403) is arranged at the position, corresponding to the right ends of the cooling water blind holes (401) on the front portion and the rear portion, a water outlet pipe interface (404) is arranged at the opening of the water outlet blind hole (403), a water diversion box (406) is arranged on the left side face of the fixed mold (101), and a water inlet (407) is arranged on the left end face of the water diversion box (406).
7. The injection mold release structure for producing long-sized parts according to claim 1, wherein the inner wall of the injection cavity (103) is provided with a teflon coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422417318.1U CN223395690U (en) | 2024-10-08 | 2024-10-08 | Injection mold demoulding structure for producing long-size parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422417318.1U CN223395690U (en) | 2024-10-08 | 2024-10-08 | Injection mold demoulding structure for producing long-size parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223395690U true CN223395690U (en) | 2025-09-30 |
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ID=97150724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422417318.1U Active CN223395690U (en) | 2024-10-08 | 2024-10-08 | Injection mold demoulding structure for producing long-size parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223395690U (en) |
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2024
- 2024-10-08 CN CN202422417318.1U patent/CN223395690U/en active Active
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