CN109501073B - Front mould spring slipping mould device - Google Patents
Front mould spring slipping mould device Download PDFInfo
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- CN109501073B CN109501073B CN201811628200.6A CN201811628200A CN109501073B CN 109501073 B CN109501073 B CN 109501073B CN 201811628200 A CN201811628200 A CN 201811628200A CN 109501073 B CN109501073 B CN 109501073B
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- 230000007246 mechanism Effects 0.000 claims abstract description 171
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims description 20
- 238000013459 approach Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
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- 230000000694 effects Effects 0.000 description 3
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- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- 239000011800 void material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a front mould elastic slip mould device, comprising: the device comprises a first die body, a second die body matched with the first die body to form a forming cavity, at least one insert mechanism capable of moving relative to the forming cavity, and an adjusting device for synchronously adjusting the position of the insert mechanism when the first die body moves relative to the second die body. The adjusting device comprises: the motion conversion mechanism is arranged between the insert mechanism and the first die body and converts the movable motion of the first die body in the first path into the movable motion of the insert mechanism in the third path; the first clutch connecting mechanism is arranged between the insert mechanism and the second die body, and correspondingly enables the insert mechanism and the second die body to be in sliding fit or separated from each other when the first die body moves along the first path or the second path; the second clutch connecting mechanism is arranged between the insert mechanism and the first die body and correspondingly enables the insert mechanism and the first die body to be separated or connected with each other when the first die body moves along the first path or the second path.
Description
Technical Field
The invention belongs to the technical field of dies, and particularly relates to a front die elastic slip die device.
Background
With the development of society and technology, the living standard is improved, and the demands of the masses on daily consumer products are increasing. The plastic products are taken as important components of mass consumer products, under the competition of market demands and industries, the updating is accelerated, the product structure is more and more complex, and higher requirements are also put forward for the manufacturing and structural design of plastic molds. In order to meet the production requirements of plastic products with different structures, various targeted mould structures are layered endlessly, so that the production difficulty is effectively solved, the market requirements are met in time, and meanwhile, the mass living standard of the masses is improved and improved. When the cavity of the product is deeper and the wall is thinner, the cavity with deeper cavity needs to be processed on the fixed die core or the movable die core, so that the processing cost is high, and the size of the fixed die core or the movable die core needs to be made large to ensure the production stability. However, the material cost of the larger fixed mold core or moving mold core is larger, so that the optimization design is needed.
Disclosure of Invention
The invention aims to provide a forming die with an insert mechanism for forming the side wall of a product, which is used for solving the technical problem of high cost waste of the existing die for producing a deep-cavity thin-wall product.
The invention is realized in such a way that a front mould spring slip mould device comprises: the device comprises a first die body, a second die body matched with the first die body to form a forming cavity, at least one insert mechanism capable of moving relative to the forming cavity, and an adjusting device for synchronously adjusting the position of the insert mechanism when the first die body moves relative to the second die body. The first die body can move relative to the second die body in a first path and a second path, and the extending directions of the first path and the second path are the same and are connected; the adjusting device comprises: the motion conversion mechanism is arranged between the insert mechanism and the first die body and converts the movable motion of the first die body in the first path into the movable motion of the insert mechanism in the third path; the extending direction of the third path and the extending directions of the first path and the second path have a preset first included angle; the first clutch connecting mechanism is arranged between the insert mechanism and the second die body, and correspondingly enables the insert mechanism and the second die body to be in sliding fit or separated from each other when the first die body moves along the first path or the second path; the second clutch connecting mechanism is arranged between the insert mechanism and the first die body and correspondingly enables the insert mechanism and the first die body to be separated or connected with each other when the first die body moves along the first path or the second path; the elastic piece is positioned between the insert mechanism and the first die body and is in an elastic compression state when the first die body moves along the first path.
Preferably, the direction of the first path is defined as an axial direction, the insert mechanism slides along a fourth path relative to the second die body when moving along a third path, and the direction of the fourth path points to the forming cavity along a radial direction; the molding die comprises: the first limiting mechanism is arranged between the insert mechanism and the first die body and is used for limiting the moving stroke of the first limiting part of the insert mechanism when the insert mechanism moves along the fourth path pointing to the forming cavity; the second limiting mechanism is arranged between the insert mechanism and the second die body and used for limiting the moving stroke of the second limiting part of the insert mechanism when the insert mechanism moves along the fourth path pointing to the forming cavity.
Preferably, the insert mechanism comprises an insert matched with the first die body and the second die body to form a forming cavity and a sliding block fixedly connected with the insert; the first die body comprises a die core with a first limiting surface in the direction of a fourth path; the second die body comprises a movable die core, a movable die plate fixedly connected with the movable die core and a fourth limiting block which is arranged on the movable die plate and provided with a second limiting surface with a direction normal to a fourth path; the two ends of the sliding block along the axial direction are respectively a first limiting part which is used for pressing the first limiting surface when the first die body and the second die body are assembled, and a second limiting part which is used for pressing the second limiting surface.
Preferably, the forming die includes a third stop mechanism for guiding and positioning the insert mechanism as the first die body approaches the second die body along the first path.
Preferably, the third limiting mechanism comprises a plurality of guide pins which extend into a cylindrical shape along the direction of the first path and a plurality of guide grooves which are respectively corresponding to the guide pins and are arranged on the insert mechanism; the guide pin comprises a third guide part and a first fixing part used for connecting the first die body along the extending direction of the guide pin, the guide groove is sleeved on the periphery of the third guide part when the first die body and the second die body are assembled, and the radial size of the guide groove and the third guide part along the direction pointing to the second die body is synchronously and gradually reduced.
Preferably, the insert mechanism comprises an insert matched with the first die body and the second die body to form a forming cavity and a sliding block fixedly connected with the insert; the first die body comprises a fixed die core; the insert is provided with the guide groove, and the fixed die core is provided with the guide pin.
Preferably, the motion conversion mechanism includes: the first guide part is configured on the first die body and comprises a first sliding matching surface extending along a third direction; the second guide part is configured on the insert mechanism and comprises a second sliding matching surface extending along a third direction; the second sliding fit part is in sliding fit with the first sliding fit part and is used for clamping the insert mechanism.
Preferably, the first clutch connection mechanism includes: the first limiting block is arranged on the second die body and comprises a third sliding matching surface; the second limiting block is arranged on the insert mechanism and comprises a fourth sliding matching surface; the first limiting block is slidingly matched with the second limiting block when the first die body moves along a first path and is separated from the second limiting block when the first die body moves along a second path.
Preferably, the second clutch connection mechanism comprises a third limiting part configured on the insert mechanism and a third limiting block configured on the first die body and used for abutting against the third limiting part when the first die body moves along the second path; and the third limiting block is matched with the elastic piece to clamp the insert mechanism when the first die body moves along the second path.
Preferably, the first die body comprises a first die plate provided with a fixed die core and a second die plate fixedly connected with the first die plate along a first path direction, and the second die plate is matched with the first die plate to form a deep hole groove with an opening facing the second die body and provided with the fixed die core at the bottom of the deep hole groove; the insert mechanism is arranged in the deep hole groove.
By adopting the technical scheme, the invention can obtain the following technical effects:
1. The front mould elastic slip mould device provided by the invention is provided with four insert mechanisms for forming the side walls of the product, and the insert mechanisms are mainly used for producing the deep-cavity thin-wall product, so that the insert and the fixed mould core can be separately processed, and the technical problems that the size of the original fixed mould core needs to be large to meet the requirement that a deeper cavity can be processed and the production stability is ensured are solved.
2. The invention provides a front mold elastic slip mold device which is provided with a first clutch connection mechanism, wherein the first clutch connection mechanism is used for enabling an insert mechanism to finish side core pulling action when mold separation is started, so that mold separation action between a first mold body and a second mold body is not interfered.
3. The invention provides a front mould elastic slip mould device, which is provided with a first limiting mechanism and a second limiting mechanism, wherein the first limiting mechanism and the second limiting mechanism are matched to control the size of a gap between every two adjacent inserts along the front-rear direction, so as to solve the problems that in the prior art, the size of the gap is difficult to control and uneven stress occurs at two ends of a sliding block along the front-rear direction in the sliding process along a third path or a fourth path, so that a clamping line is thicker, and the size of the gap is uniform and controllable along the front-rear direction, thereby achieving the purpose of ensuring that the clamping line of a produced product is smaller.
4. The invention provides a front mould elastic slip mould device, wherein a third limiting mechanism is arranged on the front mould elastic slip mould device, the third limiting mechanism is matched with a guide groove arranged on an insert through a guide pin arranged on a fixed mould core, and the insert is guided and positioned relative to the fixed mould core in the left-right direction of a sliding block through the fixed mould core. The device is used for controlling the gaps of the joints of the inserts which are mutually abutted and formed on the outer side wall of the forming cavity, so that the problems that in the prior art, the extrusion gap between one insert and the adjacent insert is too tight and the extrusion gap between the other insert and the adjacent insert is too large due to swinging in the sliding process of the insert mechanism along the third path or the fourth path are solved, the gaps of the inserts which are mutually abutted are uniform and controllable, and the purpose that the produced product clamp line is smaller is achieved.
5. The front mould elastic slip mould device provided by the invention is provided with the first limiting mechanism, the second limiting mechanism and the third limiting mechanism, so that the gaps of the inserts which are mutually abutted every two are uniformly and controllably controlled, and the gaps along the front and rear directions are uniformly and controllably controlled, thereby achieving the purpose of enabling the produced product to have smaller clamping lines or not to have clamping lines.
Drawings
Fig. 1 is a schematic structural view of a front mold elastic slip-off mold device according to the present invention.
Fig. 2 is a schematic structural view of a first embodiment of a front-mold elastic slip-mold device according to the present invention.
Fig. 3 is a schematic structural view of the assembly of four insert mechanisms of the first embodiment of the present invention.
Fig. 4 and 6 are schematic structural views of a first clutch connection mechanism and a second clutch connection mechanism according to a first embodiment of the present invention.
Fig. 5 is a schematic structural view of an insert mechanism and a slide guide according to a first embodiment of the present invention.
Fig. 7 is a schematic view of the structure of fig. 2 at P according to the present invention.
Fig. 8 is a schematic structural view of a second embodiment of a front mold elastic slip-off mold device according to the present invention.
Fig. 9 is a schematic structural view of a first limiting mechanism and a second limiting mechanism according to a second embodiment of the present invention.
Fig. 10 is a schematic structural view of a third embodiment of a front mold elastic slip-off mold device according to the present invention.
Fig. 11 and 12 are schematic structural views of a third limiting mechanism according to a third embodiment of the present invention.
Fig. 13 is a schematic structural view of a third embodiment of a front mold elastic slip-off mold device according to the present invention.
Drawing reference numerals
S-molding cavity, 1-first mold body, 11-first mold plate, 12-second mold plate, 13-fixed mold core, 14-slide guide plate, 141-first guide part, 142-first slide matching surface, 15-stop block, 2-second mold body, 21-movable mold core, 22-movable mold plate, 3-insert mechanism, 31-slide block, 32-insert, 33-second guide part, 34-second slide matching surface, 4-first clutch connection mechanism, 41-first limit block, 411-third slide matching surface, 42-second limit block, 421-fourth slide matching surface, 5-second clutch connection mechanism, 51-third limit block, 52-third limit part, 53-void avoidance groove, 6-elastic piece, 61-taper pin, 7-first limit mechanism, 71-first limit part, 72-first limit surface, 8-second limit mechanism, 81-second limit part, 82-fourth limit block, 71-second limit surface, 9-third limit mechanism, 91-fourth slide matching surface, 5-second clutch connection mechanism, 51-third limit pin, 3-third guide pin, 91-third guide groove, 912-guide groove and guide groove.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
In the description of the present invention, it should be understood that the terms "center", "up and down", "front and rear", "length", "width", "thickness", "up", "down", "front", "rear", "left", "right", "upper end", "lower end", "upper section", "lower section", "upper side", "lower side", "middle", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the drawings are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
The structure and function of the solution of the present application will now be described in detail with reference to fig. 1 to 12.
Referring to fig. 1 to 7, a first embodiment of the present application provides a front mold elastic slip-off mold device. Referring to fig. 1 to 3, the molding die includes: a first die body 1, a second die body 2 which is matched with the first die body 1 to form a forming cavity S, at least one insert mechanism 3 which can move relative to the forming cavity S, and an adjusting device for synchronously adjusting the position of the insert mechanism 3 when the first die body 1 moves relative to the second die body 2. The first mold body 1 comprises a first mold plate 11, a second mold plate 12 and a fixed mold core 13 arranged on the first mold plate 11, and the second mold body 2 comprises a movable mold plate 22 and a movable mold core 21 arranged on the movable mold plate 22. The moving direction of the first mold body 1 relative to the second mold body 2 in the present application is defined as a front-back direction, and the molding cavity S for molding the article is extended in the front-back direction as an axial direction thereof.
Referring to fig. 1 to 3, the first mold body 1 includes a first mold body 1 including a first mold plate 11 provided with a mold core 13, and a second mold plate 12 fixedly connected to the first mold plate 11 along a first path direction. The second template 12 has a through hole extending in the front-rear direction, and the first template 11 is fixedly connected to one end of the second template 12 in the front-rear direction to form a deep hole groove in cooperation with the second die body 2, and the opening of the deep hole groove faces the second die body 2. The fixed die core 13 is arranged at the bottom of the deep hole groove, and the insert mechanism 3 is arranged in the deep hole groove. In the present application, the molding die comprises four insert mechanisms 3, and when the first die body 1 and the second die body 2 are in a die-closing state, the four insert mechanisms 3 encircle the fixed die core 13 and form a cavity wall which is closed along the circumferential direction of the outer periphery of the molding cavity S.
Referring to fig. 1 to 3, the insert mechanism 3 includes an insert 32 that cooperates with the first mold body 1 and the second mold body 2 to form a molding cavity S, and a slider 31 fixedly attached to the insert 32. The slider 31 has a front end surface in the front-rear direction that abuts against the groove bottom when the first mold body 1 and the second mold body 2 are in the mold closed state, and a rear end surface that abuts against the end surface of the movable mold plate 22 facing the first mold body 1. A first parting surface is formed between the front end surface and the groove bottom, a second parting surface is formed between the end surface of the second die body 2 facing the second die plate 12 and the end surface of the movable die plate 22 facing the second die body 2, and a third parting surface is formed between the rear end surface and the end surface of the movable die plate 22 facing the first die body 1.
The adjusting device comprises a motion conversion mechanism, a first clutch connection mechanism 4 and a second clutch connection mechanism 5.
Referring to fig. 5, the motion conversion mechanism is disposed between the insert mechanism 3 and the first mold body 1, and converts the movement of the first mold body 1 in the first path into the movement of the insert mechanism 3 in the third path. The extending direction of the third path and the extending directions of the first path and the second path have a preset first included angle. The angle of the first included angle ranges from 12 degrees to 25 degrees, and the size of the first included angle in the embodiment is 15 degrees. Of course, it is understood that the magnitude of the first included angle is not limited to 15 °. The motion conversion mechanism includes a guide plate 14 disposed on the first mold body 1, and one guide plate 14 is disposed on each of the left and right sides of each insert mechanism 3 (it is understood that the left and right direction is relative to the individual insert mechanism 3 and is not applicable to the case of the first mold body 1, the second mold body 2, or the combination of a plurality of insert mechanisms 3). Each slide guide 14 has a first guide portion 141 thereon, and the first guide portion 141 includes a first sliding surface 142 extending along the direction of extension of the third path. In the present embodiment, the first guiding portion 141 is a sliding rail extending along the extending direction of the third path, and two side walls of the sliding rail are the first sliding surfaces 142. The slider 31 is provided with a second guide portion 33, and the second guide portion 33 includes a second mating surface 34 extending in the third direction. In this embodiment, the second guiding portion 33 is a sliding groove slidingly coupled to the first guiding portion 141, and two side walls of the sliding groove are second sliding surfaces 34. The two slide guides 14 are located on both sides of the insert mechanism 3 to hold it and restrict the insert mechanism 3 from sliding with respect to the two slide guides 14 only in the direction in which the third path extends.
Referring to fig. 1 to 4 and 6, a first clutch connection mechanism 4 is disposed between the insert mechanism 3 and the second mold body 2, and slidably engages the insert mechanism 3 and the second mold body 2 along a first path in the first mold body 1. The first clutch connection mechanism 4 includes a first limiting block 41 and a second limiting block 42. The first stopper 41 is disposed on the second mold body 2, and the second stopper 42 is disposed on the slider 31, wherein the first stopper 41 and the second stopper 42 are in an L-shaped structure and are disposed opposite to each other, the first stopper 41 has a third sliding surface 411 extending in a radial direction from the molding cavity S, and the second stopper 42 has a fourth sliding surface 421 extending in a radial direction from the molding cavity S. When the first die body 1 moves along the first path relatively to the second die body 2, the insert mechanism 3 slides relatively to the second die body 2 along the fourth path and points to the forming cavity S, and finally, the four insert mechanisms 3 are folded to form the outer cavity wall of the forming cavity S. The extending direction of the fourth path is the extending direction of the forming cavity S in the radial direction. When the first mold body 1 moves along the first path and approaches the second mold body 2, the insert mechanism 3 slides along the fourth path relative to the second mold body 2 in a direction radially outward of the molding cavity S, and finally, the second stopper 42 is separated from the first stopper 41, that is, the insert mechanism 3 and the second mold body 2 are separated from each other, the first mold body 1 completes the movement of the first path and continues to drive the insert mechanism 3 to move synchronously in the direction away from the second mold body 2 along the second path. Wherein, when the first die body 1 moves along the first path along the direction approaching the second die body 2, the front end surface of the sliding block 31 is relatively far away from the bottom of the groove along the front-back direction, and meanwhile, the insert 32 moves outwards and away from the forming cavity S along the radial direction.
Referring to fig. 1 to 4 and 6, each slider 31 has a pressure-receiving surface inclined radially outwardly in the forward-backward direction, and the deep hole groove has a stopper surface adapted to the pressure-receiving surface and pressing the pressure-receiving surface when the first mold body 1 and the second mold body 2 are in the mold-closed state. Wherein the first mould body 1 is provided with a stop 15 comprising a stop surface, the stop 15 having a hardness which is greater than the hardness of the first and second mould plates 11, 12. In the present embodiment, the second clutch connection mechanism 5 is disposed between the insert mechanism 3 and the first mold body 1. Referring to fig. 6 and 7, the second clutch connection mechanism 5 includes a third limiting portion 52 disposed on the insert mechanism 3, and a third limiting portion 51 disposed on the first mold body 1. The third limiting portion 52 is a third limiting surface configured on the pressure bearing surface, and the third limiting surface faces the direction of the second die body 2. The slider 31 is provided with a clearance groove 53 which communicates the third limiting portion 52 with the rear end face of the slider 31. When the first die body 1 moves away from the second die body 2 along the first path, the third limiting block 51 moves along the third path relative to the insert mechanism 3, and finally abuts against the third limiting part 52, so that the insert mechanism 3 is connected with the first die body 1, and moves synchronously with the first die body 1 when moving along the second path.
Referring to fig. 1 to 6, a first inclined pin hole extending along a third path is formed in each slider 31, a second inclined pin hole extending along the first inclined pin hole is formed in the first die plate 11, and an elastic member 6, which is a spring in this embodiment, is disposed between the slider 31 and the first die plate 11. The front and rear sections of the elastic member 6 are respectively accommodated in the second inclined pin hole and the first inclined pin hole, and the front and rear ends of the elastic member are respectively abutted against the first template 11 and the sliding block 31. The elastic member 6 is in an elastically compressed state when the first mold body 1 moves along the first path, so that the slider 31 mechanism does not play relative to the first mold body 1 in the front-rear direction when the first mold body 1 moves along the first path or the second path. In this embodiment, the first template 11 is provided with a taper pin 61 sleeved in the spring, and the taper pin 61 is used for elastically deforming the spring along the axial direction of the spring.
Unlike the first embodiment, the present application further provides an embodiment. In the second embodiment, the forming mold of the present embodiment includes a first limiting mechanism 7 and a second limiting mechanism 8, referring to fig. 8 and 9. The first limiting mechanism 7 is disposed between the insert mechanism 3 and the first mold body 1, and is configured to limit a movement stroke of the insert mechanism 3 when the insert mechanism 3 moves in a direction in which the fourth path is directed toward the molding cavity S. Wherein the slider 31 includes a first stopper 71 and a second stopper 81 at both ends in the front-rear direction.
The first stopper 71 is located at the front end of the slider 31 and faces the molding cavity S in the direction of the fourth path. The fixed mold core 13 comprises a second fixing portion for being embedded on the first mold plate 11, and a forming portion extending out of the bottom of the groove and located in the deep hole groove, wherein four first limiting surfaces 72 respectively facing and corresponding to the four insert mechanisms 3 are arranged on the periphery of the forming portion, and the first limiting portions 71 of the sliding blocks 31 are used for abutting against the first limiting surfaces 72 when the first mold body 1 approaches the forming cavity S along the fourth path direction, and abut against the first limiting surfaces 72 under the extrusion of the stop blocks.
The second stopper 81 is located at the rear end of the slider 31 and faces the molding cavity S in the direction of the fourth path. The second mold body 2 includes a fourth limiting block 82, and the fourth limiting block 82 is disposed on the movable mold plate 22. It is understood that in other embodiments, the fourth limiting block 82 may be disposed on the movable mold core 21. The fourth stopper 82 has thereon a second stopper surface 821 facing the insert mechanism 3 in the direction of the fourth path. In the present embodiment, the fourth limiting block 82 is annular and surrounds the outer periphery of the movable mold core 21, and the outer periphery of the fourth limiting block 82 has four second limiting surfaces 821 facing and corresponding to the four insert mechanisms 3 respectively. It is understood that in other embodiments, the first limiting mechanism 7 includes four fourth limiting blocks 82, and each fourth limiting block 82 corresponds to an insert mechanism 3 and has a second limiting surface 821. In this embodiment, the second limiting portion 81 of each sliding block 31 is configured to abut against the second limiting surface 821 when the first mold body 1 approaches the molding cavity S along the fourth path, and abuts against the second limiting surface 821 under the pressing of the stopper.
The first limiting surface 72 and the second limiting surface 821 of this embodiment cooperate together to limit the stroke of the insert mechanism 3 along the fourth path near the molding cavity S, and under the extrusion of the stop block, the gaps along the axial direction, that is, the front-rear direction, of the joint of the inserts 32 abutting each other and forming the outer side wall of the molding cavity S are consistent, so as to solve the problem that the gaps between the inserts 32 and the two ends of the inserts 32 along the front-rear direction are uneven in the sliding process of the existing slide block 31 along the third path or the fourth path, thereby achieving the purpose of solving the problem that the produced product has larger burrs along the clamping line along the front-rear direction. Other features not mentioned in the second embodiment may be the same as those in the first embodiment, and the applicable modification and advantageous effects may also be the same as those in the first embodiment, so that a detailed description thereof is omitted.
Unlike the first and second embodiments, the present application further provides an embodiment. In a third embodiment, and with reference to figures 10 to 12, the forming tool comprises a third stop means 9 for guiding and positioning the insert means 3 as the first mould body 1 approaches the second mould body 2 along the first path. The third limiting mechanism 9 is sandwiched between the insert mechanism 3 and the first mold body 1. The third stopper mechanism 9 includes a plurality of guide pins 91 extending in the front-rear direction, and guide grooves 92 provided in the insert 32 in correspondence with the respective guide pins 91, and the guide pins 91 are disposed in the fixed mold core 13. In the present embodiment, the guide pin 91 has a cylindrical structure, and includes a first fixing portion 911 fitted into the cavity 13 and a third guide portion 912 inserted into the guide groove 92 when the first mold body 1 and the second mold body 2 are closed. The radial dimension of the third guiding portion 912 gradually decreases from front to back, that is, a second included angle is formed between the outer peripheral surface of the third guiding portion 912 and the front-back direction, and the second included angle is larger than the first included angle between the third path and the front-back direction, so that the third limiting mechanism 9 does not interfere with the movement of the insert mechanism 3 along the third path or the fourth path when the first die body 1 moves along the first path. The angle of the first included angle ranges from 12 degrees to 25 degrees, wherein the size of the first included angle in the embodiment is 15 degrees, and the second included angle is 17 degrees. It is understood that when the first angle is 15 °, the second angle is not limited to 17 °, and may take a value greater than 15 ° within a reasonable range. In other embodiments the first included angle is not limited to 15 °. The outer diameter of the first fixing portion 911 is not greater than the maximum inner diameter of the guide groove 92, that is, the inner diameter of the opening of the guide groove 92, and the height of the guide groove 92 in the front-rear direction is greater than the height of the third guide portion 912 in the front-rear direction. The outer peripheral wall of the third guide portion 912 is fitted to the inner peripheral wall of the guide groove 92 when the first mold body 1 and the second mold body 2 are closed.
It will be appreciated that a third limiting mechanism 9 is included between each insert mechanism 3 and the first mold body 1. Each third limiting mechanism 9 comprises a plurality of guide pins 91 arranged on the fixed mold core 13. In the present embodiment, 2 guide grooves 92 are formed in the end face of each insert 32, which is close to the bottom of the groove, and 8 guide pins 91 are arranged in the fixed mold core 13 at positions corresponding to the guide grooves 92. The guide grooves 92 on the inserts 32 of the present embodiment are matched with the guide pins 91 on the fixed mold core 13 to control the gaps at the joints of the inserts 32 which are mutually abutted and form the outer side wall of the molding cavity S, so that the insert mechanism 3 cannot generate the conditions that one insert 32 is excessively tightly pressed with the adjacent insert 32 and the extrusion gap is excessively large with the other adjacent insert 32 due to swinging in the sliding process along the third path or the fourth path, thereby achieving the purpose of solving the problem that the clamping lines, namely burrs, at the joints between the inserts 32 at different positions of the produced product are large.
The third stopper mechanism 9 of the third embodiment is used in combination with the first stopper mechanism 7 and the second stopper mechanism 8 of the second embodiment when producing a product requiring a slider 31 having a high height in the front-rear direction. The third limit mechanism 9 can be used alone when producing a slider 31 requiring a small height. Other features not mentioned in the third embodiment may be the same as those of the first or second embodiment, and the modification and advantageous effects may be the same as those of the first or second embodiment, so that the description thereof will not be repeated.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A front-mold spring-slip-mold device comprising: the device comprises a first die body, a second die body matched with the first die body to form a forming cavity, at least one insert mechanism capable of moving relative to the forming cavity, and an adjusting device for synchronously adjusting the position of the insert mechanism when the first die body moves relative to the second die body; it is characterized in that the method comprises the steps of,
The first die body can move relative to the second die body in a first path and a second path, and the extending directions of the first path and the second path are the same and are connected;
the adjusting device comprises:
The motion conversion mechanism is arranged between the insert mechanism and the first die body and converts the movable motion of the first die body in the first path into the movable motion of the insert mechanism in the third path; the extending direction of the third path and the extending directions of the first path and the second path have a preset first included angle;
the first clutch connecting mechanism is arranged between the insert mechanism and the second die body, and correspondingly enables the insert mechanism and the second die body to be in sliding fit or separated from each other when the first die body moves along the first path or the second path;
The second clutch connecting mechanism is arranged between the insert mechanism and the first die body and correspondingly enables the insert mechanism and the first die body to be separated or connected with each other when the first die body moves along the first path or the second path;
the elastic piece is positioned between the insert mechanism and the first die body and is in an elastic compression state when the first die body moves along the first path; the direction of the first path is defined as an axial direction, the insert mechanism slides along a fourth path relative to the second die body when moving along a third path, and the direction of the fourth path points to the forming cavity along a radial direction;
the front mold elastic slip mold device comprises:
the first limiting mechanism is arranged between the insert mechanism and the first die body and is used for limiting the moving stroke of the first limiting part of the insert mechanism when the insert mechanism moves along the fourth path pointing to the forming cavity;
The second limiting mechanism is arranged between the insert mechanism and the second die body and is used for limiting the movable stroke of the second limiting part of the insert mechanism when the insert mechanism moves along the fourth path towards the forming cavity;
The front mould elastic slip mould device comprises a third limiting mechanism used for guiding and positioning the insert mechanism when the first mould body approaches to the second mould body along a first path;
the first clutch connection mechanism includes:
The first limiting block is arranged on the second die body and comprises a third sliding matching surface;
The second limiting block is arranged on the insert mechanism and comprises a fourth sliding matching surface;
The first limiting block is slidingly matched with the second limiting block when the first die body moves along a first path and is separated from the second limiting block when the first die body moves along a second path;
The second clutch connection mechanism comprises a third limiting part arranged on the insert mechanism and a third limiting block arranged on the first die body and used for abutting against the third limiting part when the first die body moves along a second path; and the third limiting block is matched with the elastic piece to clamp the insert mechanism when the first die body moves along the second path.
2. The front mold slip-off mold device according to claim 1, wherein the insert mechanism comprises an insert for forming a molding cavity by matching the first mold body and the second mold body, and a slide block fixedly connected with the insert;
the first die body comprises a die core with a first limiting surface in the direction of a fourth path;
The second die body comprises a movable die core, a movable die plate fixedly connected with the movable die core and a fourth limiting block which is arranged on the movable die plate and provided with a second limiting surface with a direction normal to a fourth path;
The two ends of the sliding block along the axial direction are respectively a first limiting part which is used for pressing the first limiting surface when the first die body and the second die body are assembled, and a second limiting part which is used for pressing the second limiting surface.
3. The apparatus according to claim 1, wherein the third limiting mechanism comprises a plurality of guide pins extending in a cylindrical shape along the direction of the first path and a plurality of guide grooves formed on the insert mechanism corresponding to the guide pins, respectively;
The guide pin comprises a third guide part and a first fixing part used for connecting the first die body along the extending direction of the guide pin, the guide groove is sleeved on the periphery of the third guide part when the first die body and the second die body are assembled, and the radial size of the guide groove and the third guide part along the direction pointing to the second die body is synchronously and gradually reduced.
4. A front mold slip-off mold device according to claim 3, wherein the insert means comprises an insert for forming a molding cavity with the first mold body and the second mold body, and a slider fixedly attached to the insert; the first die body comprises a fixed die core; the insert is provided with the guide groove, and the fixed die core is provided with the guide pin.
5. The front mold elastic slip mold device according to claim 1, wherein the motion converting mechanism comprises:
The first guide part is configured on the first die body and comprises a first sliding matching surface extending along a third direction;
the second guide part is configured on the insert mechanism and comprises a second sliding matching surface extending along a third direction;
the second sliding surface is in sliding fit with the first sliding surface and is used for clamping the insert mechanism.
6. The front mold elastic slip mold device according to claim 1, wherein the first mold body comprises a first mold plate provided with a fixed mold core and a second mold plate fixedly connected with the first mold plate along a first path direction, and the second mold plate is matched with the first mold plate to form a deep hole groove with an opening facing the second mold body and provided with the fixed mold core at the bottom of the groove; the insert mechanism is arranged in the deep hole groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811628200.6A CN109501073B (en) | 2018-12-28 | 2018-12-28 | Front mould spring slipping mould device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811628200.6A CN109501073B (en) | 2018-12-28 | 2018-12-28 | Front mould spring slipping mould device |
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| CN109501073A CN109501073A (en) | 2019-03-22 |
| CN109501073B true CN109501073B (en) | 2024-10-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209552236U (en) * | 2018-12-28 | 2019-10-29 | 厦门唯科健康产业有限公司 | A kind of preceding mould bullet slippage mold device |
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| JPH06363B2 (en) * | 1986-03-10 | 1994-01-05 | 石川島播磨重工業株式会社 | Insert insert molding machine |
| JP3208758B2 (en) * | 1997-02-20 | 2001-09-17 | 三菱マテリアル株式会社 | Injection compression molding method and injection compression molding die apparatus used in this method |
| JP2005280255A (en) * | 2004-03-30 | 2005-10-13 | Mitsubishi Materials Corp | Mold assembly for molding optical disk and optical disk molding method |
| JP5785570B2 (en) * | 2013-02-04 | 2015-09-30 | Thk株式会社 | Exercise guidance device |
| CN207105393U (en) * | 2017-08-31 | 2018-03-16 | 厦门唯科模塑科技有限公司 | A kind of new front mold slide transmission mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209552236U (en) * | 2018-12-28 | 2019-10-29 | 厦门唯科健康产业有限公司 | A kind of preceding mould bullet slippage mold device |
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