CN218906182U - Core pulling structure of sliding block oil cylinder - Google Patents
Core pulling structure of sliding block oil cylinder Download PDFInfo
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- CN218906182U CN218906182U CN202223294775.3U CN202223294775U CN218906182U CN 218906182 U CN218906182 U CN 218906182U CN 202223294775 U CN202223294775 U CN 202223294775U CN 218906182 U CN218906182 U CN 218906182U
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- hole groove
- stepped hole
- core pulling
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Abstract
The utility model discloses a sliding block oil cylinder core pulling structure which can realize step-by-step core pulling, prevent injection molding products from deforming or breaking, effectively improve the yield of the products and reduce the production cost.
Description
Technical Field
The utility model relates to the technical field of injection mold processing, in particular to a core pulling structure of a sliding block oil cylinder.
Background
The power of the mould slide block is driven by the oil cylinder to carry out the core pulling of the slide block oil cylinder, which is called a slide block oil cylinder core pulling structure, has the advantages of stable and reliable action and capability of realizing core pulling under complex conditions, and is mainly applicable to the production and manufacture of moulds with longer slide block core pulling distance, such as moulds with a stroke of more than 60 mm, or moulds with complex product structures such as front mould core pulling and the like and requirements on the action time of the slide block.
At present, most complex injection mold products have more screw fixing column hole sites, reinforcing bone sites and other structures, and when the existing mold is subjected to demolding operation, a front mold drives a sliding block and a core pulling structure to move simultaneously under the driving action of a driving device (such as an oil cylinder), but when the sliding block is pulled out, the sliding block is easily influenced by the packing force of the product and the injection molding residual temperature, so that the problems of pulling deformation, even breakage and the like of the screw fixing column hole sites, the reinforcing bone sites and other small part structures of the injection molding product are caused, the product quality is influenced, the yield of the product is reduced, and the production cost is increased.
Disclosure of Invention
Aiming at the technical problems that the pulling deformation, even fracture and the like of an injection molding product are easy to occur when a mold is used for pulling cores in the prior art, the quality of the product is affected, the yield is low, and the production cost is high, the utility model provides the sliding block oil cylinder core pulling structure which can realize step-by-step core pulling, prevent the deformation or fracture of the injection molding product, effectively improve the yield of the product and reduce the production cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a slider hydro-cylinder core pulling structure, its includes hydro-cylinder, mandrel slider and shovel base, its characterized in that, the mandrel slider includes first slider and bullet needle formula second slider, one side end of first slider is first mandrel end, corresponds with one side surface of injection molding product, and the opposite side end is fixed in first slider seat, first slider seat passes through the hydro-cylinder drive, be equipped with L shape spout in the first slider, bullet needle formula second slider slidable mounting in L shape spout's horizontal part, shovel base slidable mounting in L shape spout's vertical part, the shovel base slides into when L shape spout's vertical part is spacing to bullet needle formula second slider, bullet needle formula second slider's one end runs through first slider, tip are second mandrel end, correspond with the screw fixed column of injection molding product, perhaps strengthen bone position etc. the other end is fixed in second slider seat, another end cover of bullet needle formula second slider is equipped with elastic element, when the compound die, elastic element is in compression state.
It is further characterized in that,
the elastic element is a spring;
the transverse part of the L-shaped chute is a third-order hole groove, the third-order hole groove comprises a first stepped hole groove, a second stepped hole groove and a third stepped hole groove, and the second sliding block seat is slidably arranged in the first stepped hole groove; the spring is sleeved on the spring needle type second sliding block and is positioned in the second stepped hole groove, one end of the spring is fixedly connected with the side end of the second sliding block seat, and the other end of the spring is fixed at the side end, away from the second sliding block seat, of the second stepped hole groove; the spring needle type second sliding block sequentially penetrates through the second stepped hole groove and the third stepped hole groove;
the first stepped hole groove, the second stepped hole groove and the third stepped hole groove are coaxially distributed, and the apertures of the first stepped hole groove, the second stepped hole groove and the third stepped hole groove are sequentially reduced;
the second sliding block seat is wedge-shaped, the narrow part of the second sliding block seat is abutted with the shovel base in the vertical part when the die is closed, and the other end of the spring needle type second sliding block is fixed on the wide part of the second sliding block seat;
a guide post is arranged in the vertical part, a guide hole is formed in the middle of the shovel base, and the guide post is slidably arranged in the guide hole;
the top of shovel base is fixed in the front mould, the front mould passes through drive arrangement drive.
The structure of the utility model can achieve the following beneficial effects: through setting up bullet needle formula second slider in first slider, the position of complex core-pulling structure such as screw fixed column hole site, strengthening bone position in the product can be when first slider is fixed, by bullet needle formula second slider drawing of patterns in advance to realize the substep and loose core, prevent injection molding product fracture deformation, effectively improve the yields of product, reduction in production cost.
In addition, because the elastic element is in a compression state during die assembly, when in core pulling operation, the shovel base slides out from the vertical part, the elastic element drives the second slide block seat and drives the spring needle type second slide block to slide in the opposite direction of the ejection direction at the transverse part under the action of restoring force, so that the quick core pulling of the spring needle type second slide block is realized, and the core pulling operation is simple and quick.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of the perspective structure of FIG. 1 from above;
FIG. 3 is a schematic view of the structure of FIG. 2 taken in section C-C;
fig. 4 is a schematic perspective view of an injection molded product.
Reference numerals: the device comprises an oil cylinder 1, a shovel base 2, a first sliding block 3, a second sliding block 4, a first sliding block seat 3a, an L-shaped sliding groove 5, a vertical part 5a, a first stepped hole groove 5b, a second stepped hole groove 5c, a third stepped hole groove 5d, a spring 6, a first core die end 7, a second core die end 8, a second sliding block seat 9, a guide post 10, a guide hole 11, an injection molding product 12 and a screw fixing post hole site 12a.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present utility model and in the foregoing figures, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or device.
In one embodiment of the present utility model, a core pulling structure of a slider cylinder is provided, as shown in fig. 1 to 3, and the core pulling structure includes a cylinder 1, a core mold slider and a shovel base 2, where the core mold slider includes a first slider 3 and a pin-type second slider 4, one side end of the first slider 3 is a first core mold end 7, corresponding to one side surface of an injection molding product, the other side end is fixed to a first slider seat 3a, the first slider seat 3a is driven by the cylinder 1, an L-shaped chute 5 is provided in the first slider 3, the pin-type second slider 4 is slidably mounted on a transverse portion of the L-shaped chute 5, the shovel base 2 is slidably mounted on a vertical portion 5a of the L-shaped chute 5, the pin-type second slider 4 is limited when the shovel base 2 slides into the vertical portion 5a of the L-shaped chute 5, one end of the pin-type second slider 4 penetrates the first slider 3, the second core mold end 8 corresponds to a screw fixing post or a reinforcing bone position of the injection molding product, the other end is fixed to a second slider seat 9, and when the other end of the pin-type second slider 4 is sleeved with an elastic element, and the elastic element is in a compression state.
Referring to fig. 3, the elastic element is a spring 6; the transverse part of the L-shaped chute 5 is a third-step hole groove, the third-step hole groove comprises a first step hole groove 5b, a second step hole groove 5c and a third step hole groove 5d, and the second slider seat 9 is slidably arranged in the first step hole groove 5 b; the spring 6 is sleeved on the spring needle type second slider 4 and is positioned in the second stepped hole groove 5c, one end of the spring 6 is fixedly connected with the side end of the second slider seat 9, and the other end of the spring 6 is fixed at the side end, far away from the second slider seat 9, of the second stepped hole groove 5 c; the spring needle type second sliding block 4 sequentially penetrates through the second stepped hole groove 5c and the third stepped hole groove 5d; the first stepped hole groove 5b, the second stepped hole groove 5c and the third stepped hole groove 5d are coaxially distributed, and the apertures of the first stepped hole groove 5b, the second stepped hole groove 5c and the third stepped hole groove 5d are sequentially reduced; the second slide block seat 9 is wedge-shaped, and when the mold is closed, the narrow part of the second slide block seat 9 is abutted against the shovel base 2 in the vertical part 5a, and the other end of the spring needle type second slide block 4 is fixed on the wide part of the second slide block seat 9.
Referring to fig. 1 and 3, a guide post 10 is installed in the vertical part 5a, a guide hole 11 is formed in the middle of the shovel base 2, and the guide post 10 is slidably installed in the guide hole 11; the arrangement of the guide holes 11 and the guide posts 10 ensures that the shovel base stably moves along the vertical part. The top end of the shovel base 2 is fixed to a front die (not shown) which is driven by a driving device (not shown).
The working principle is as follows: during die assembly, the first sliding block 3 is driven to eject through the oil cylinder 1, the shovel base 2 slides into the vertical part 5a of the L-shaped sliding groove 5 through die assembly of the front die and the rear die to limit, so that the spring needle type second sliding block 4 slides along the transverse part of the L-shaped sliding groove 5 and ejects out, and the spring 6 compresses, and products are injection molded through the first core die end 7 of the first sliding block 3 and the second core die end 8 of the spring needle type second sliding block 4; when the die is opened, the driving device (such as an air cylinder) drives the front die to drive the shovel base 2 to separate from the vertical part 5a of the L-shaped chute 5, the spring needle type second sliding block 4 slides along the transverse part of the L-shaped chute 5 under the action of the restoring force of the spring 6 and pulls out core to release the positions of the screw fixing column hole sites 12a or the strong bone positions and the like, and then the oil cylinder 1 drives the first sliding block 3 to pull out core to release the core and simultaneously drives the spring needle type second sliding block 4 to move, so that the whole product is released.
The slider hydro-cylinder structure of loosing core can be used to have in the production of injection molding product 12 at complicated structure positions of loosing core such as screw fixation post hole site, strengthening bone position, through setting up bullet needle formula second slider in first slider, can realize step by step loose core, prevent the product fracture deformation of moulding plastics, effectively improve the yields of product, reduction in production cost.
The above are only preferred embodiments of the present application, and the present utility model is not limited to the above examples. It is to be understood that other modifications and variations which may be directly derived or contemplated by those skilled in the art without departing from the spirit and concepts of the present utility model are deemed to be included within the scope of the present utility model.
Claims (7)
1. The utility model provides a slider hydro-cylinder core pulling structure, its includes hydro-cylinder, mandrel slider and shovel base, its characterized in that, the mandrel slider includes first slider and bullet needle type second slider, one side end of first slider is first mandrel end, and the opposite side end is fixed in first slider seat, first slider seat passes through the hydro-cylinder drive, be equipped with L shape spout in the first slider, bullet needle type second slider slidable mounting in L shape spout's horizontal part, shovel base slidable mounting in L shape spout's vertical part, shovel base slides in L shape spout's vertical part is right bullet needle type second slider is spacing, bullet needle type second slider's one end runs through first slider, tip are second mandrel end, and the other end is fixed in the second slider seat, another end cover of bullet needle type second slider is equipped with elastic element, and during the compound die, elastic element is in compression state.
2. The slide cylinder core pulling structure according to claim 1, wherein the elastic element is a spring.
3. The slide block cylinder core pulling structure according to claim 2, wherein the transverse part of the L-shaped chute is a third-step hole groove, the third-step hole groove comprises a first step hole groove, a second step hole groove and a third step hole groove, and the second slide block seat is slidably mounted in the first step hole groove; the spring is sleeved on the spring needle type second sliding block and is positioned in the second stepped hole groove, one end of the spring is fixedly connected with the side end of the second sliding block seat, and the other end of the spring is fixed at the side end, away from the second sliding block seat, of the second stepped hole groove; the spring needle type second sliding block sequentially penetrates through the second stepped hole groove and the third stepped hole groove.
4. The slide cylinder core pulling structure according to claim 3, wherein the first stepped hole groove, the second stepped hole groove and the third stepped hole groove are coaxially distributed, and the apertures of the first stepped hole groove, the second stepped hole groove and the third stepped hole groove are sequentially reduced.
5. The slide cylinder core pulling structure according to claim 4, wherein the second slide block seat is wedge-shaped, a narrow portion of the second slide block seat is abutted against the shovel base in the vertical portion when the mold is closed, and the other end of the spring needle type second slide block is fixed to a wide portion of the second slide block seat.
6. The core pulling structure of a slider cylinder according to claim 1, wherein a guide post is installed in the vertical portion, a guide hole is formed in the middle of the shovel base, and the guide post is slidably installed in the guide hole.
7. The slide cylinder core pulling structure according to claim 1, wherein the top end of the shovel base is fixed to a front die, and the front die is driven by a driving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223294775.3U CN218906182U (en) | 2022-12-08 | 2022-12-08 | Core pulling structure of sliding block oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223294775.3U CN218906182U (en) | 2022-12-08 | 2022-12-08 | Core pulling structure of sliding block oil cylinder |
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| CN218906182U true CN218906182U (en) | 2023-04-25 |
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| CN202223294775.3U Active CN218906182U (en) | 2022-12-08 | 2022-12-08 | Core pulling structure of sliding block oil cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116689730A (en) * | 2023-06-27 | 2023-09-05 | 广州德志金属制品有限公司 | Core pulling device and method suitable for ultra-long stroke |
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2022
- 2022-12-08 CN CN202223294775.3U patent/CN218906182U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116689730A (en) * | 2023-06-27 | 2023-09-05 | 广州德志金属制品有限公司 | Core pulling device and method suitable for ultra-long stroke |
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