CN113650247A - Instrument board decoration mould and injection molding machine of thimble under tunnel - Google Patents
Instrument board decoration mould and injection molding machine of thimble under tunnel Download PDFInfo
- Publication number
- CN113650247A CN113650247A CN202111007650.5A CN202111007650A CN113650247A CN 113650247 A CN113650247 A CN 113650247A CN 202111007650 A CN202111007650 A CN 202111007650A CN 113650247 A CN113650247 A CN 113650247A
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- Prior art keywords
- core
- thimble
- pulling
- deep cavity
- inclined guide
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C2045/4492—Removing or ejecting moulded articles for undercut articles preventing damage or deformation of undercut articles during ejection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3008—Instrument panels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides an instrument board decorating part die of a lower thimble of a tunnel and an injection molding machine, wherein the die comprises a core-pulling device, a core-pulling device and a core-pulling device, wherein the core-pulling device comprises an inclined guide pillar fixing block, an inclined guide pillar and a core-pulling slide block; the inclined guide pillar fixing block is connected with the front template; the inclined guide post is connected with the inclined guide post fixing block; the core-pulling sliding block is in sliding fit with the inclined guide post and moves along the tunnel of the rear template under the driving of the inclined guide post, and a clearance hole is formed in the core-pulling sliding block; and a deep cavity bone position thimble facing a deep cavity bone position on the instrument board decoration part is arranged in the clearance hole in a penetrating way. According to the invention, the clearance hole is formed in the core-pulling slide block for the thimble to pass through, so that the core-pulling and product ejection of the core-pulling slide block are not influenced to be carried out simultaneously, the deep cavity bone position close to the buckle position on the instrument board decoration can be smoothly demoulded under the ejection action of the thimble, and the phenomena of blank ejection and strain injury of the deep cavity bone position are effectively avoided.
Description
Technical Field
The invention relates to the field of automobile molds, in particular to an instrument board decorating part mold of a lower thimble of a tunnel and an injection molding machine.
Background
With the development of economy and the improvement of living standard, people do not simply pursue the performance, safety and oil-saving effect of the vehicle, and increasingly pay more attention to the appearance aesthetic feeling; for a vehicle, an instrument panel on the automobile is an important functional part and a decorating part, the instrument panel comprises an instrument panel body, and a plurality of holes for mounting various instrument parts are formed in the instrument panel body, so that the instrument body is complex in structure, the mold design structure is complex, and the production yield of the instrument panel body is directly influenced. As shown in FIG. 1, a partial structure of an instrument panel decoration has a plurality of deep beads and fastener positions near the deep beads. And (4) for buckling positions on the instrument board decorating parts with complex structures, core-pulling sliding blocks in a tunnel form are used for demolding. Because tunnel type structure of loosing core need occupy a certain position, lead to the mould can't set up supplementary ejection mechanism in the position that the deep cavity bone position that is close to detaining the position corresponds, cause the instrument board decoration to push up white, strain.
Disclosure of Invention
The invention aims to provide an instrument board decorating part mold with a thimble below a tunnel and an injection molding machine, and aims to solve the technical problem that the existing mold is easy to cause whitening and strain when manufacturing an instrument board decorating part with a deep cavity bone position and a buckling position.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an instrument board decoration mould of thimble under tunnel, it includes:
the mould comprises a front mould plate and a rear mould plate, wherein the front mould plate and the rear mould plate are oppositely arranged, a mould cavity is arranged between the front mould plate and the rear mould plate, and the mould cavity is used for forming a product;
the core-pulling device comprises an inclined guide pillar fixing block, an inclined guide pillar and a core-pulling slide block;
the inclined guide pillar fixing block is connected with the front template;
the inclined guide post is connected with the inclined guide post fixing block;
the core-pulling sliding block comprises a body part, and a forming part and a guide part which are respectively arranged at two ends of the body part; the main body part is in sliding fit with the core-pulling tunnel on the rear template, the main body part is provided with a clearance hole, the forming part is used for forming a buckling position on an instrument panel decorating part, and the guide part is in sliding fit with the inclined guide post;
the ejection device comprises an ejector plate and a deep cavity bone position ejector pin; the deep cavity bone position thimble passes through the clearance hole and just faces the deep cavity bone position on the instrument panel decoration.
Further, the distance that the core-pulling slide block moves along the first direction under the driving of the inclined guide pillar is smaller than the width difference of the clearance hole and the deep cavity bone position thimble in the first direction.
Further, the guide part of the core-pulling slide block is provided with a first end surface, and the body part is connected to the first end surface;
when the first end face abuts against the rear template, a safety distance D1 is reserved between the deep cavity bone position thimble and the side wall of the clearance hole close to the guide part.
Furthermore, a plurality of rear mold inserts are embedded in the rear mold plate, and the top surfaces of the rear mold inserts are the same as the profile of the deep cavity bone position of the instrument panel decoration part;
the core-pulling tunnel is arranged on the rear mold insert, and the deep cavity bone position thimble penetrates through the rear mold insert.
Further, the rear mold insert is provided with a thimble hole for a deep cavity bone thimble to penetrate through, and the thimble hole is divided into an upper section and a lower section by the clearance hole;
the diameter of the lower section of the thimble hole is larger than that of the deep cavity bone position thimble.
Furthermore, the ejection device also comprises a fixed pressing block, the bottom of the ejector plate is provided with a mounting hole, and the fixed pressing block is mounted in the mounting hole;
the lower end of the deep cavity bone position ejector pin is provided with a hanging table, the top of the mounting hole of the ejector pin plate is provided with a counter bore matched with the hanging table, and the hanging table of the deep cavity bone position is fixed in the counter bore by the fixed pressing block;
a plurality of maintenance holes are formed in the bottom plate of the instrument panel decorating part die, and the maintenance holes are opposite to the fixed pressing block.
The invention also provides an injection molding machine which comprises the instrument board decorating part mould of the tunnel lower thimble.
The invention has the beneficial effects that: the ejector pin passes through the clearance hole formed in the core-pulling sliding block, so that the core-pulling and product ejection of the core-pulling sliding block are not influenced to be carried out simultaneously, the deep cavity bone position close to the buckling position on the instrument board decorating part can be smoothly demoulded under the ejection effect of the ejector pin, and the phenomena of whitening and strain of the deep cavity bone position are effectively avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a partial view of the structure of an instrument panel trim;
FIG. 2 is a longitudinal cross-sectional view of an instrument panel trim mold of the lower thimble of the tunnel of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a block diagram of the core back slide of the present invention;
fig. 5 is a longitudinal cross-sectional view of the rear mold insert of the present invention.
Wherein: 1. the core-pulling device comprises an instrument board decoration part, 11, a deep cavity bone position, 12, a hole position, 2, a front template, 3, a rear template, 4, a core-pulling device, 5, an ejection device, 6, a bottom plate, 31, a rear mold insert, 311, a core-pulling tunnel, 312, an upper section, 313, a lower section, 41, an inclined guide post fixing block, 42, an inclined guide post, 43, a core-pulling slider, 431, a body part, 432, a guide part, 433, a forming part, 4311, a clearance hole, 4321, a first end face, 51, an ejector plate, 52, a deep cavity bone position ejector pin, 53, a fixing pressing block, 521, a hanging table, 61 and a maintenance hole.
Detailed Description
The technical solution provided by the present invention is explained in more detail below with reference to fig. 1-5.
As shown in fig. 2, an instrument panel decoration mold for a lower thimble in a tunnel includes: the mould comprises a front mould plate 2 and a rear mould plate 3, wherein the front mould plate 2 and the rear mould plate 3 are oppositely arranged, a mould cavity is arranged between the front mould plate 2 and the rear mould plate 3, and the mould cavity is used for forming a product;
the core-pulling device 4, as shown in fig. 3, includes an inclined guide post fixing block 41, an inclined guide post 42, and a core-pulling slider 43;
the inclined guide pillar fixing block 41 is connected with the front template 2;
the inclined guide post 42 is connected with the inclined guide post fixing block 41;
as shown in fig. 4, the core back slider 43 includes a main body 431, and a molding portion 433 and a guide portion 432 respectively disposed at two ends of the main body 431; the main body 431 is in sliding fit with a core-pulling tunnel on the rear template 3, a clearance hole 4311 is formed in the main body 431, the forming part 433 is used for forming a buckling position on the instrument panel decorating part 1, and the guide part 432 is in sliding fit with the inclined guide post 42;
an ejector device 5 including an ejector plate 51 and a deep cavity bone position ejector 52; the deep cavity bone position thimble 52 is inserted into the clearance hole 4311 and directly faces the deep cavity bone position on the instrument panel decoration 1.
The die opening process of the instrument board decorating part die of the lower thimble of the tunnel comprises the following steps:
the front template 2 moves forward in the mold opening process, and drives the inclined guide post fixing block 41 and the inclined guide post 42 to move forward. Under the guiding action of the inclined guide post 42, the core-pulling slide block 43 moves forwards and towards the first direction, and the forming part 433 of the core-pulling slide block 43 is separated from the buckling position of the instrument panel decorating part 1 to complete the tripping. Meanwhile, the deep cavity bone position ejector pins 52 are driven by the ejector pin plate 51 to eject upwards, and the deep cavity bone position of the auxiliary instrument panel decorating part 1 is separated from the rear template 3.
According to the instrument board decorating part die for the lower thimble in the tunnel, the hollow avoiding hole 4311 is formed in the core-pulling slide block 43 for the thimble to pass through, so that core pulling and product ejection of the core-pulling slide block 43 are not influenced to be carried out simultaneously, a deep cavity bone position close to a buckling position on the instrument board decorating part 1 can be smoothly demoulded under the ejection effect of the thimble, and the phenomena of blank ejection and pulling damage of the deep cavity bone position are effectively avoided.
In order to avoid collision between the core pulling slider 43 and the deep cavity bone position ejector pin 52, as shown in fig. 3, a distance that the core pulling slider 43 moves in the first direction under the driving of the inclined guide post 42 is smaller than a width difference between the clearance hole 4311 and the deep cavity bone position ejector pin 52 in the first direction, where a direction B in fig. 3 represents the first direction, and the first direction is the same as a core pulling tunnel direction on the rear mold plate 3. That is, in the mold opening process, in the process that the core-pulling slider 43 slides along the first direction, the deep cavity bone position thimble 52 is always located in the clearance hole 4311.
The guide part 432 of the core pulling slider 43 has a first end surface 4321, and the body part 431 is connected to the first end surface 4321; when the first end surface 4321 abuts against the rear mold plate 3, a safety distance D1 is provided between the deep cavity bone position thimble 52 and a side wall of the clearance hole 4311 close to the guide portion 432. That is, the abutting between the core-pulling slide block 43 and the rear mold plate 3 has a limiting effect on the core-pulling slide block 43, so that the side wall of the clearance hole 4311 is not contacted with the deep cavity rib position thimble 52 all the time, and the collision between the core-pulling slide block 43 and the deep cavity rib position thimble 52 is avoided.
As the core pulling slide block 43 and the core pulling tunnel need to move frequently relatively, and are easy to wear, and the cost for replacing the whole rear template 3 is high, a plurality of rear mold inserts 31 are embedded in the rear template 3, as shown in fig. 5, the top surfaces of the rear mold inserts 31 are the same as the profile of the deep cavity bone position of the instrument panel decoration 1; the core-pulling tunnel 311 is arranged on the rear mold insert 31, an ejector pin hole for the deep cavity bone ejector pin 52 to pass through is formed in the rear mold insert, and the deep cavity bone ejector pin 52 penetrates through the rear mold insert.
Wherein the thimble hole is divided into an upper section 312 and a lower section 313 by the clearance hole 4311; the diameter of the lower section 313 of the thimble hole is larger than the diameter of the deep cavity bone position thimble 52. Because the deep cavity bone position thimble 52 frequently rubs with the thimble hole, loose core slider 43 and the loose core tunnel, inevitably produce some debris. Will the diameter of the hypomere of thimble hole sets to the diameter that is greater than deep cavity bone position thimble 52, can make the stroke chip removal clearance between the inner wall of thimble hole and the deep cavity bone position thimble 52, and the piece can drop from this chip removal clearance, avoids influencing subsequent relative movement. Particularly, as the core pulling slider 43 moves back and forth above the lower section of the clearance hole 4311, the core pulling slider 43 and the core pulling tunnel are more easily dropped into the clearance hole 4311. And the phenomenon that the core-pulling slide block 43 pushes the scraps out to the forming cavity to influence the product forming during die assembly is avoided.
In order to avoid the influence on the strength of the core-pulling slider 43 caused by the too large clearance hole 4311 formed on the core-pulling slider 43, the diameter of the deep-cavity bone-position thimble 52 with a smaller diameter needs to be adopted, and the deep-cavity bone-position thimble 52 is easy to deform after being used for a long time and needs to be replaced in time so as to avoid influencing the quality of the injection molding part. In order to facilitate replacement of the deep cavity bone position ejector pin 52, the ejector device 5 further comprises a fixed pressing block 53, a mounting hole is formed in the bottom of the ejector plate 51, and the fixed pressing block 53 is mounted in the mounting hole; the lower end of the deep cavity bone position ejector pin 52 is provided with a hanging table 521, the top of the mounting hole of the ejector pin plate 51 is provided with a countersunk hole matched with the hanging table 521, and the hanging table 521 of the deep cavity bone position is fixed in the countersunk hole by the fixed pressing block 53; the bottom plate 6 of the instrument panel decorating part mould is provided with a plurality of maintenance holes 61, and the maintenance holes 61 are opposite to the fixed pressing block 53. When the deep cavity bone position thimble 52 is disassembled, the fixing pressing block 53 is disassembled from the lower part of the mould, and then the deep cavity bone position thimble 52 can be taken down.
The embodiment also provides an injection molding machine, which comprises the instrument board decoration part mold of the tunnel lower thimble.
In the description of the present invention, it is to be understood that the terms "vertical", "horizontal", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and unless otherwise stated the above words are not intended to have a special meaning.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides an instrument board decoration mould of thimble under tunnel which characterized in that includes:
the mould comprises a front mould plate and a rear mould plate, wherein the front mould plate and the rear mould plate are oppositely arranged, a mould cavity is arranged between the front mould plate and the rear mould plate, and the mould cavity is used for forming a product;
the core-pulling device comprises an inclined guide pillar fixing block, an inclined guide pillar and a core-pulling slide block;
the inclined guide pillar fixing block is connected with the front template;
the inclined guide post is connected with the inclined guide post fixing block;
the core-pulling sliding block comprises a body part, and a forming part and a guide part which are respectively arranged at two ends of the body part; the main body part is in sliding fit with the core-pulling tunnel on the rear template, the main body part is provided with a clearance hole, the forming part is used for forming a buckling position on an instrument panel decorating part, and the guide part is in sliding fit with the inclined guide post;
the ejection device comprises an ejector plate and a deep cavity bone position ejector pin; the deep cavity bone position thimble passes through the clearance hole and just faces the deep cavity bone position on the instrument panel decoration.
2. The mold for the decoration of the dashboard of a tunnel lower thimble according to claim 1, wherein: the distance of the core-pulling slide block moving along the first direction under the driving of the inclined guide pillar is smaller than the width difference of the clearance hole and the deep cavity bone position thimble in the first direction.
3. The mold for the decoration of the dashboard of a tunnel lower thimble according to claim 1, wherein: the guide part of the core-pulling slide block is provided with a first end surface, and the body part is connected to the first end surface;
when the first end face abuts against the rear template, a safety distance D1 is reserved between the deep cavity bone position thimble and the side wall of the clearance hole close to the guide part.
4. The mold for the decoration of the dashboard of a tunnel lower thimble according to claim 2, wherein: a plurality of rear mold inserts are embedded in the rear mold plate, and the top surfaces of the rear mold inserts are the same as the profile of deep cavity bone positions of the instrument panel decoration;
the core-pulling tunnel is arranged on the rear mold insert, and the deep cavity bone position thimble penetrates through the rear mold insert.
5. The mold for the decoration of the dashboard with a tunnel lower thimble according to claim 4, wherein: the rear mold insert is provided with a thimble hole for a deep cavity bone thimble to penetrate through, and the thimble hole is divided into an upper section and a lower section by the clearance hole;
the diameter of the lower section of the thimble hole is larger than that of the deep cavity bone position thimble.
6. The mold for the decoration of the dashboard of a tunnel lower thimble according to claim 1, wherein:
the ejection device further comprises a fixed pressing block, the bottom of the ejector plate is provided with a mounting hole, and the fixed pressing block is mounted in the mounting hole;
the lower end of the deep cavity bone position ejector pin is provided with a hanging table, the top of the mounting hole of the ejector pin plate is provided with a counter bore matched with the hanging table, and the hanging table of the deep cavity bone position is fixed in the counter bore by the fixed pressing block;
a plurality of maintenance holes are formed in the bottom plate of the instrument panel decorating part die, and the maintenance holes are opposite to the fixed pressing block.
7. An injection molding machine comprising a mold according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007650.5A CN113650247B (en) | 2021-08-30 | 2021-08-30 | Instrument board decoration mould and injection molding machine of thimble under tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007650.5A CN113650247B (en) | 2021-08-30 | 2021-08-30 | Instrument board decoration mould and injection molding machine of thimble under tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113650247A true CN113650247A (en) | 2021-11-16 |
| CN113650247B CN113650247B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111007650.5A Active CN113650247B (en) | 2021-08-30 | 2021-08-30 | Instrument board decoration mould and injection molding machine of thimble under tunnel |
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| CN (1) | CN113650247B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114872283A (en) * | 2022-04-27 | 2022-08-09 | 欧唐科技（深圳）有限公司 | Cross demoulding mould for deep rib inner ring inner extraction shrinkage cork |
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| CN203460362U (en) * | 2013-09-10 | 2014-03-05 | 天津国丰模具有限公司 | Safe ejector for slide blocks |
| CN208826981U (en) * | 2018-09-18 | 2019-05-07 | 上海川鹏塑料有限公司 | A kind of Novel injection mold construction |
| CN111070575A (en) * | 2019-12-27 | 2020-04-28 | 宁波奥克斯电气股份有限公司 | Core-pulling forming mechanism and mold |
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2021
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| CN203460362U (en) * | 2013-09-10 | 2014-03-05 | 天津国丰模具有限公司 | Safe ejector for slide blocks |
| CN208826981U (en) * | 2018-09-18 | 2019-05-07 | 上海川鹏塑料有限公司 | A kind of Novel injection mold construction |
| CN111070575A (en) * | 2019-12-27 | 2020-04-28 | 宁波奥克斯电气股份有限公司 | Core-pulling forming mechanism and mold |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872283A (en) * | 2022-04-27 | 2022-08-09 | 欧唐科技（深圳）有限公司 | Cross demoulding mould for deep rib inner ring inner extraction shrinkage cork |
| CN114872283B (en) * | 2022-04-27 | 2023-05-23 | 欧唐科技（深圳）有限公司 | Deep rib inner ring inner draw Ke Jiaocha demoulding mould |
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| Publication number | Publication date |
|---|---|
| CN113650247B (en) | 2023-05-16 |
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