CN114393794B - Forming die convenient to back-off shaping and drawing of patterns - Google Patents
Forming die convenient to back-off shaping and drawing of patterns Download PDFInfo
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- CN114393794B CN114393794B CN202210066294.2A CN202210066294A CN114393794B CN 114393794 B CN114393794 B CN 114393794B CN 202210066294 A CN202210066294 A CN 202210066294A CN 114393794 B CN114393794 B CN 114393794B
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- 238000007493 shaping process Methods 0.000 title description 7
- 238000000465 moulding Methods 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims description 34
- 238000007906 compression Methods 0.000 claims description 34
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000000243 solution 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
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C2045/445—Removing or ejecting moulded articles for undercut articles using the movable undercut forming element for ejection of the moulded article
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a molding die convenient for back-off molding and demolding, which comprises a first molding die and a second molding die, wherein a back-off molding core-pulling mechanism is arranged between the first molding die and the second molding die: the core pulling device comprises a core pulling frame body, and is characterized in that a core pulling sliding block is arranged on the core pulling frame body in a sliding mode, the core pulling sliding block comprises a sliding channel, a sliding block is arranged in the sliding channel and comprises a first guide inclined surface, a core pulling forming block is arranged on the first guide inclined surface in a sliding mode, a second guide inclined surface is arranged on the lower side surface of the core pulling forming block, the first guide inclined surface is matched with the second guide inclined surface in a fitting mode, the first guide inclined surface comprises a first guide part, the second guide inclined surface comprises a second guide part, and the first guide part is matched with the second guide part. When the die is removed, the inner wall of the product is recessed reliably, the product is prevented from being pulled out in the forming process, and the die is suitable for production under the conditions of high product and large buckling position.
Description
Technical Field
The invention relates to the technical field of forming dies for forming large-scale products, in particular to a forming die convenient for inverted buckle forming and demolding.
Background
At present, the inner wall shaping of product is sunken (back-off), adopts the fashioned mode of loosing core, but current mode of loosing core generally adopts the mode of loosing core of oblique top, because in the great product shaping in-process of volume, the volume based on back-off structure is also great relatively to the back-off atress is limited, hardly reaches reliable drawing of patterns after the sunken formation of inner wall, also can't reach the back-off high accuracy requirement after the product shaping, even the product takes place the damage easily at the drawing of patterns in-process for the product shaping rate is low.
Disclosure of Invention
The invention aims to solve the defects of the technology, and discloses a molding die which is convenient for back-off molding and demolding, and the specific mode is as follows.
The invention relates to a forming die convenient for inverted buckle forming and demolding, which comprises a first forming die and a second forming die, wherein the first forming die sequentially comprises a first fixing plate and a first module from top to bottom, the first module is fixed on the first fixing plate and comprises a forming cavity and at least one driving part;
the second forming die sequentially comprises a second module, a foot block and a second fixing plate from top to bottom, wherein the foot block is fixedly connected with the second module and the second fixing plate respectively, a sliding channel and a die core corresponding to the position of the forming cavity are arranged on the second module, the die core is arranged in the forming cavity, a back-off forming core-pulling mechanism and a side hole forming core-pulling mechanism are arranged on the side of the die core, the side hole forming core-pulling mechanism comprises at least one side hole forming block which is arranged on the second module in a sliding manner, and a driving part is matched with the side hole forming block to drive the side hole forming block to translate or move backwards and translate towards the die core;
the back-off molding core pulling mechanism comprises a first translation driving device and a core pulling sliding block, wherein the core pulling sliding block is arranged in the sliding channel in a sliding manner, and the first translation driving device is connected with the core pulling sliding block; the core-pulling sliding block comprises a sliding channel, a sliding block is arranged in the sliding channel in a sliding manner, the sliding block comprises a first guide inclined surface, a core-pulling forming block is arranged on the first guide inclined surface in a sliding manner, a second guide inclined surface is arranged on the lower side surface of the core-pulling forming block, the first guide inclined surface is matched with the second guide inclined surface in a fitting manner, the first guide inclined surface comprises a first guide part, the second guide inclined surface comprises a second guide part, and the first guide part is matched with the second guide part; the sliding block slides along the first guide inclined plane in the horizontal sliding process, so that the core pulling forming block performs lifting action; the top surface of the core-pulling forming block is provided with a forming part for forming the concave inner wall, and the front side surface of the core-pulling forming block is abutted against the mold core;
the core pulling sliding block is provided with a second translation driving device for driving the sliding block to translate, and the first translation driving device is connected with the sliding block.
Preferably, the core-pulling forming block comprises a positioning part, wherein the positioning part is positioned between the first guide inclined plane and the upper inner wall of the sliding channel, and the second guide inclined plane is positioned on the bottom surface of the positioning part;
the forming part comprises a recess and two protrusions, and the two protrusions are respectively positioned at two ends of the horizontal inner wall of the recess.
Preferably, the first guiding inclined plane further comprises a third guiding part, the second guiding inclined plane further comprises a fourth guiding part, and the third guiding part is in sliding fit with the fourth guiding part; the third guide part comprises a second guide channel, and the fourth guide part comprises a second guide block; the second guide block is correspondingly embedded into the second guide channel.
Preferably, the first guide part comprises a first guide channel with a dovetail-shaped cross section, the second guide part comprises a first guide block with a dovetail-shaped cross section, or the first guide part comprises a first guide block with a dovetail-shaped cross section, and the second guide part comprises a first guide channel with a dovetail-shaped cross section;
the first guide block is correspondingly embedded into the first guide channel.
Preferably, the inner wall of the first core-pulling frame body is provided with a sliding guide groove, the outer wall of the core-pulling sliding block is provided with a sliding guide block, and the sliding guide block is correspondingly embedded into the sliding guide groove.
Preferably, the inner wall of the sliding channel is provided with a fifth guide part, and the sliding block is provided with a sixth guide part matched with the fifth guide part; the fifth guide part comprises a third guide channel with a dovetail-shaped cross section, the sixth guide part comprises a third guide block with a dovetail-shaped cross section, or the fifth guide part comprises a third guide block with a dovetail-shaped cross section, and the sixth guide part comprises a third guide channel with a dovetail-shaped cross section;
the third guide block is correspondingly embedded into the third guide channel.
Preferably, a first compression cavity communicated with the forming cavity is formed in the first module, the core pulling sliding block comprises a compression part, an inclined wedge tightening surface is formed in the compression part, a wedging block is fixed on the inclined wedge tightening surface, the first compression cavity comprises a first compression inclined surface, the core pulling forming block is located between the first compression part and the mold core, the compression part is arranged in the first compression cavity, and the wedging block is attached to the first compression inclined surface.
Preferably, at least one driving part is replaced by three driving parts, and at least one side hole forming block is replaced by three side hole forming blocks;
the three driving parts all comprise inclined guide posts, the three side hole forming blocks all comprise side hole forming parts and inclined guide holes, and the three inclined guide posts are respectively matched with the three inclined guide holes.
Preferably, the three driving parts further comprise second compression cavities communicated with the forming cavities, the three inclined guide posts are located beside the second compression cavities respectively, the third second compression cavities comprise three second compression inclined planes, the three side hole forming blocks further comprise third compression inclined planes located on the side hole forming parts, the three side hole forming parts are placed in the second compression cavities respectively, and the second compression inclined planes are attached to the third compression inclined planes.
Preferably, a groove and a through groove are formed in the second module, a mold core block is fixed in the groove, the mold core is arranged on the mold core block, a concave is formed in the mold core block, the concave and the through groove are spliced to form a sliding channel, a first core pulling frame body is fixed at a port of the sliding channel, and a first translation driving device is arranged on the first core pulling frame body; the core-pulling sliding block is fixedly provided with a second core-pulling frame body, and the second translation driving device is arranged on the second core-pulling frame body.
Preferably, the first translational drive device and the second translational drive device each comprise an oil cylinder.
The forming die convenient for back-off forming and demolding is designed in the invention, when demolding is carried out, the core-pulling forming block can be driven to descend, so that the forming part of the core-pulling forming block is separated from the inner wall recess of a product, and then the core-pulling forming block is driven to be separated from the inner cavity of the product, so that the back-off forming of the inner wall on the product is reliable, the product is prevented from being pulled out in the forming process, and the forming die is suitable for production under the conditions of high product and large buckling position.
Drawings
FIG. 1 is a schematic diagram of the overall structure (one);
FIG. 2 is a schematic diagram of the overall structure (II);
FIG. 3 is a schematic overall construction (III);
FIG. 4 is a schematic structural view (I) of a back-off molding core pulling mechanism;
FIG. 5 is a schematic structural view of a back-off molding core pulling mechanism (II);
FIG. 6 is a schematic structural view of a back-off molding core-pulling mechanism (III);
FIG. 7 is a schematic diagram of a back-off molding core pulling mechanism;
FIG. 8 is a schematic view of a back-off molding core-pulling mechanism;
FIG. 9 is a schematic diagram of a product structure (one);
FIG. 10 is a schematic diagram of a product structure (II);
FIG. 11 is a schematic diagram of a core-pulling molding block;
fig. 12 is a schematic diagram of a core-pulling block structure (ii).
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
Example 1:
as shown in the drawings, the molding die for facilitating inverted molding and demolding comprises a first molding die 100 and a second molding die 200, wherein the first molding die 100 comprises a first fixing plate 101 and a first module 102 in sequence from top to bottom, the first module 102 is fixed on the first fixing plate 101, and the first module 102 comprises a molding cavity 104 and at least one driving part 108; the first forming die 100 serves as a movable die.
The second forming die 200 sequentially comprises a second module 201, a foot block 202 and a second fixing plate 203 from top to bottom, the foot block 202 is fixedly connected with the second module 201 and the second fixing plate 203 respectively, a sliding channel 219 and a die core 217 corresponding to the position of the forming cavity 104 are arranged on the second module 201, the die core 217 is arranged in the forming cavity 104, a back-off forming core pulling mechanism 300 and a side hole forming core pulling mechanism are arranged beside the die core 217, the side hole forming core pulling mechanism comprises at least one side hole forming block 207 which is arranged on the second module 201 in a sliding manner, and a driving part 108 is matched with the side hole forming block 207 to drive the side hole forming block 207 to translate or retract and translate towards the die core 217; the second molding die 200 serves as a fixed die.
The back-off molding core pulling mechanism 300 comprises a first translation driving device 6 and a core pulling sliding block 2, wherein the core pulling sliding block 2 is arranged in a sliding channel 219 in a sliding manner, and the first translation driving device 6 is connected with the core pulling sliding block 2; the core-pulling sliding block 2 comprises a sliding channel 21, a sliding block 3 is arranged in the sliding channel 21 in a sliding manner, the sliding block 3 comprises a first guide inclined surface 31, a core-pulling forming block 4 is arranged on the first guide inclined surface 31 in a sliding manner, a second guide inclined surface 41 is arranged on the lower side surface of the core-pulling forming block 4, the first guide inclined surface 31 is matched with the second guide inclined surface 41 in a fitting manner, the first guide inclined surface 31 comprises a first guide part 32, the second guide inclined surface 41 comprises a second guide part 42, and the first guide part 32 is matched with the second guide part 42; in the horizontal sliding process of the sliding block 3, the core-pulling forming block 4 slides along the first guide inclined plane 31 so as to make the core-pulling forming block perform lifting action; the top surface of the core-pulling forming block 4 is provided with a forming part 44 for forming an inner wall recess 441, and the front side surface of the core-pulling forming block 4 abuts against the die core 217; the core pulling slide block 2 is provided with a second translation driving device 8 for driving the sliding block 3 to translate, and the first translation driving device 6 is connected with the sliding block 3. Preferably, the first translation driving device 6 and the second translation driving device 8 each comprise an oil cylinder, and are suitable for shaping large-scale products.
Preferably, the molding part 44 includes a recess 441 and two protrusions 442, and the two protrusions 442 are respectively located at two ends of the horizontal inner wall of the recess 441, so that the inner wall of the upper side of the window of the product forms the recess 441, i.e., the undercut.
Preferably, an ejector plate is disposed between the second module 201 and the second fixing plate 203, and an ejector pin is fixed on the ejector plate, and penetrates through the second module 201 and the mold core 217.
The molding method of the molding die is as follows:
step S1, after the first forming die 100 and the second forming die 200 are mutually closed, a die cavity is formed between the inner wall of the forming cavity 104 and the outer wall of the die core 217, and the core-pulling forming block 4 and the side hole forming part 209 of the side hole forming core-pulling mechanism are both arranged in the die cavity, and the core-pulling forming block 4 is positioned at the high position of the first guide inclined plane 31, and the front side surface and the rear side surface of the core-pulling forming block 4 respectively abut against the core-pulling slide block 2 and the forming die core 2177; the method comprises the steps of carrying out a first treatment on the surface of the
S2, injecting molten materials into a die cavity by utilizing a pouring channel on the first module 102, and closing and maintaining the pressure after the injection is completed;
s3, cooling and forming after pressure maintaining is completed;
step S4, after cooling, the first forming die 100 and the second forming die 200 are mutually separated to open the dies, after opening the dies, the second translational driving device 8 drives the sliding block 3 to retreat, so that the core-pulling forming block 4 moves to the lower position of the first guiding inclined plane 31 under the matching of the first guiding inclined plane 31 and the second guiding inclined plane 41, the forming part 44 of the core-pulling forming block 4 is separated from the concave 441 of the inner wall of the product, the core-pulling forming block 4 is correspondingly positioned at the window of the product, and simultaneously, the side hole forming block 207 of the side hole forming mechanism retreats;
step S5, the first translation driving device 6 drives the core-pulling sliding block 2 to retreat, so that the core-pulling forming block 4 is separated from a product through a window of the product;
and S6, pushing up the ejector pin plate, so that the upper end of the ejector pin penetrates out of the mold core 217 to eject the molded product, and discharging and demolding of the product are completed.
Preferably, in order to position the mold opening and closing, a plurality of guide holes are provided in the first module 102, and a plurality of guide posts corresponding to the respective guide holes are provided in the second module 201, and the guide posts are inserted into the guide holes
Preferably, the core-pulling forming block 4 includes a positioning portion 45, the positioning portion 45 is located between the first guiding inclined plane 31 and the upper inner wall of the sliding channel 21, and the second guiding inclined plane 41 is located at the bottom surface of the positioning portion 45, and the structure thereof is arranged so that the core-pulling forming block 4 operates stably in the lifting displacement process and the displacement precision is improved.
Preferably, the first guide portion 32 includes a first guide channel 321 having a dovetail shape in cross section, the second guide portion 42 includes a first guide block 421 having a dovetail shape in cross section, the first guide block 421 is fixed on the second guide inclined surface 41 by a bolt, or the first guide portion 32 includes a first guide block 421 having a dovetail shape in cross section, and the second guide portion 42 includes a first guide channel 321 having a dovetail shape in cross section; the first guide block 421 is correspondingly embedded in the first guide channel 321. The structure of the core-pulling block is arranged so that the lifting action of the core-pulling block 4 is realized more stably in the process of sliding the core-pulling block 4 and the sliding block 3 relatively, and the lifting action of the mold core 217 and the core-pulling sliding block 2 between the core-pulling blocks 4 is realized.
In the present embodiment, the first guiding inclined surface 31 further includes a third guiding portion 33, the second guiding inclined surface 41 further includes a fourth guiding portion 43, and the third guiding portion 33 is slidably engaged with the fourth guiding portion 43; specifically, the third guide part 33 includes a second guide passage 331, and the fourth guide part 43 includes a second guide block 431; the second guide block 431 is correspondingly embedded in the second guide channel 331. The structure of the device is arranged to enable the core-pulling forming block 4 and the sliding block 3 to achieve more stable lifting action of the core-pulling forming block 4 in the relative sliding process.
In order to make the sliding of the sliding block 3 more stable, a positioning block 211 is provided on the upper inner wall of the sliding channel 21, and is inserted into the second guide channel 331.
Preferably, the inner wall of the first core-pulling frame body 1 is provided with a sliding guide groove 11, the outer wall of the core-pulling sliding block 2 is provided with a sliding guide block 22, the sliding guide block 22 is correspondingly embedded into the sliding guide groove 11, and the structure is arranged to enable the core-pulling sliding block 2 to slide reciprocally and stably and reliably.
Preferably, the inner wall of the sliding channel 21 is provided with a fifth guide part 212, the sliding block 3 is provided with a sixth guide part 34 matched with the fifth guide part 212, specifically, the fifth guide part 212 comprises a third guide channel 213 with a dovetail-shaped cross section, the sixth guide part 34 comprises a third guide block 341 with a dovetail-shaped cross section, the third guide block 341 is fixed on the bottom surface of the sliding block 3 through a bolt, or the fifth guide part 212 comprises a third guide block 341 with a dovetail-shaped cross section, and the sixth guide part 34 comprises a third guide channel 213 with a dovetail-shaped cross section; the third guide block 341 is correspondingly embedded in the third guide channel 213. The structure setting of the sliding block enables the sliding block 3 to obtain the positioning sliding effect in the sliding process, the service performance is improved, and the sliding precision is improved.
In this embodiment, the first pressing cavity 109 that is communicated with the forming cavity 104 is provided on the first module 102, the core-pulling slider 2 includes a pressing portion 23, an inclined wedging surface 45 is provided on the pressing portion 23, a wedging block is fixed on the inclined wedging surface 45, the first pressing cavity 109 includes a first pressing inclined surface 110, the core-pulling forming block 4 is located between the first pressing portion 23 and the mold core 217, the pressing portion 23 is disposed in the first pressing cavity 109, and the wedging block is attached to the first pressing inclined surface 110, and the structure is set so that the core-pulling forming block 4 can be pressed between the pressing portion 23 and the mold core 217, so that after the mold is closed, the movement under the condition that the mold cavity has pressure is avoided.
In this embodiment, a groove 204 and a through groove 205 are provided on the second module 201, a mold core 217 block is fixed in the groove 204, the mold core 217 is provided on the mold core 217 block, a concave is provided on the mold core 217 block, the concave and the through groove 205 are spliced to form a sliding channel 219, a first core-pulling frame body 1 is fixed at a port of the sliding channel 219, and the first translation driving device 6 is mounted on the first core-pulling frame body 1; the second core-pulling frame body 5 is fixed on the core-pulling sliding block 2, the second translation driving device 8 is arranged on the second core-pulling frame body 5, the inverted buckle forming core-pulling mechanism 300 which is arranged in a structure is more suitable for a die, and the service performance of the die is improved.
Example 2
The molding die for facilitating inverted molding and demolding described in this embodiment has a structure similar to that of embodiment 1, but differs from embodiment 1 in that at least one driving portion 108 is replaced with three driving portions 108, and at least one side hole molding block 207 is replaced with three side hole molding blocks 207; the three driving portions 108 each include the inclined guide posts 106, and the three side hole forming blocks 207 each include a side hole forming portion 209 and an inclined guide hole 212, and the three inclined guide posts 106 are respectively matched with the three inclined guide holes 212. The number of the side hole forming blocks is set to be three so as to be manufactured in accordance with the specification of a product, the side hole forming blocks 207 can be driven to retreat during mold opening, and the side hole forming blocks 207 can be driven to advance during mold closing.
Preferably, the three driving portions 108 further include second compressing cavities 105 communicated with the forming cavities 104, the three oblique guide posts 106 are located beside the second compressing cavities 105 respectively, the three second compressing cavities 105 include three second compressing inclined planes 107, the three side hole forming blocks 207 further include third compressing inclined planes 220 located on the side hole forming portions 209, the three side hole forming portions 209 are placed in the second compressing cavities 105 respectively, and the second compressing inclined planes 107 are attached to the third compressing inclined planes 220. The structure is arranged so that after the die is closed, the side hole forming block 207 is pressed tightly to keep stable, and the movement of the die cavity under the condition of pressure is avoided. The inclined guide column 106 is a T-shaped inclined guide column 106, and a pressing block is fixed in the second pressing cavity 105 through a bolt, and the T-shaped inclined guide column 106 is positioned in an inclined T-shaped hole of the pressing block to fix the inclined guide column 106.
Preferably, the second module 201 is provided with three sliding grooves 208, and three side hole forming blocks 207 are respectively arranged in the sliding grooves 208; the outer side end of one sliding groove 208 is fixed with a positioning plate 211, a through hole is arranged on the positioning plate 211, a guide rod 215 is penetrated in the through hole, one end of the guide rod 215 is fixed with one side hole forming block 207, the other end of the guide rod 215 is sleeved with a spring 212, two ends of the spring 212 respectively collide with a limiting block and the positioning plate 211 at the other end of the guide rod 215, and the side hole forming block 207 is assisted to retreat.
The present invention is not limited to the above-described preferred embodiments, and any person who can obtain other various products under the teaching of the present invention, however, any change in shape or structure of the product is within the scope of the present invention, and all the products having the same or similar technical solutions as the present application are included.
Claims (10)
1. A forming die for facilitating inverted molding and demolding, comprising a first forming die (100) and a second forming die (200), characterized in that:
the first forming die (100) sequentially comprises a first fixing plate (101) and a first module (102) from top to bottom, the first module (102) is fixed on the first fixing plate (101), and the first module (102) comprises a forming cavity (104) and at least one driving part (108);
the second forming die (200) sequentially comprises a second module (201), a foot block (202) and a second fixing plate (203) from top to bottom, the foot block (202) is fixedly connected with the second module (201) and the second fixing plate (203) respectively, a sliding channel (219) and a die core (217) corresponding to the forming cavity (104) are arranged on the second module (201), the die core (217) is arranged in the forming cavity (104), a back-off forming core pulling mechanism (300) and a side hole forming core pulling mechanism are arranged beside the die core (217), the side hole forming core pulling mechanism comprises at least one side hole forming block (207) which is arranged on the second module (201) in a sliding mode, and a driving part (108) is matched with the side hole forming block (207) to drive the side hole forming block (207) to translate or retreat and move towards the die core (217);
the inverted molding core pulling mechanism (300) comprises a first translation driving device (6) and a core pulling sliding block (2), wherein the core pulling sliding block (2) is arranged in the sliding channel (219) in a sliding manner, and the first translation driving device (6) is connected with the core pulling sliding block (2); the core-pulling sliding block (2) comprises a sliding channel (21), a sliding block (3) is arranged in the sliding channel (21), the sliding block (3) comprises a first guide inclined surface (31), a core-pulling forming block (4) is arranged on the first guide inclined surface (31) in a sliding mode, a second guide inclined surface (41) is arranged on the lower side surface of the core-pulling forming block (4), the first guide inclined surface (31) is matched with the second guide inclined surface (41) in a fitting mode, the first guide inclined surface (31) comprises a first guide part (32), the second guide inclined surface (41) comprises a second guide part (42), and the first guide part (32) is matched with the second guide part (42); in the horizontal sliding process of the sliding block (3), the core-pulling forming block (4) slides along the first guide inclined plane (31) to enable the core-pulling forming block to perform lifting action; the top surface of the core-pulling forming block (4) is provided with a forming part (44) for forming an inner wall recess (441), and the front side surface of the core-pulling forming block (4) is abutted against the mold core (217);
the core pulling sliding block (2) is provided with a second translation driving device (8) for driving the sliding block (3) to translate, and the first translation driving device (6) is connected with the sliding block (3).
2. The molding die for facilitating back-off molding and demolding according to claim 1, wherein the core pulling molding block (4) comprises a positioning part (45), the positioning part (45) is positioned between the first guiding inclined surface (31) and the upper inner wall of the sliding channel (21), and the second guiding inclined surface (41) is positioned on the bottom surface of the positioning part (45);
the molding part (44) comprises a concave (441) and two bulges (442), and the two bulges (442) are respectively positioned at two ends of the horizontal inner wall of the concave (441).
3. A core pulling structure for an inner wall recess (441) on a molded product according to claim 1, wherein the first guiding inclined surface (31) further comprises a third guiding portion (33), the second guiding inclined surface (41) further comprises a fourth guiding portion (43), and the third guiding portion (33) is slidably engaged with the fourth guiding portion (43); the third guide part (33) comprises a second guide channel (331), and the fourth guide part (43) comprises a second guide block (431); the second guide block (431) is correspondingly embedded in the second guide channel (331).
4. A mould for facilitating inverted moulding and demoulding according to claim 3, wherein the first guide part (32) comprises a first guide channel (321) with a dovetail-shaped cross section, the second guide part (42) comprises a first guide block (421) with a dovetail-shaped cross section, or the first guide part (32) comprises a first guide block (421) with a dovetail-shaped cross section, and the second guide part (42) comprises a first guide channel (321) with a dovetail-shaped cross section;
the first guide block (421) is correspondingly embedded into the first guide channel (321).
5. The molding die convenient for back-off molding and demolding according to claim 1, wherein the inner wall of the first core-pulling frame body (1) is provided with a sliding guide groove (11), the outer wall of the core-pulling sliding block (2) is provided with a sliding guide block (22), and the sliding guide block (22) is correspondingly embedded into the sliding guide groove (11).
6. A mould for facilitating inverted molding and demolding according to any one of claims 1 to 5, wherein the inner wall of the sliding channel (21) is provided with a fifth guide portion (212), and the sliding block (3) is provided with a sixth guide portion (34) cooperating with the fifth guide portion (212); the fifth guide part (212) comprises a third guide channel (213) with a dovetail-shaped cross section, the sixth guide part (34) comprises a third guide block (341) with a dovetail-shaped cross section, or the fifth guide part (212) comprises a third guide block (341) with a dovetail-shaped cross section, and the sixth guide part (34) comprises a third guide channel (213) with a dovetail-shaped cross section;
the third guide block (341) is correspondingly embedded in the third guide channel (213).
7. The molding die convenient for back-off molding and demolding according to claim 1, wherein a first compression cavity (109) communicated with the molding cavity (104) is arranged on the first module (102), the core pulling slide block (2) comprises a compression part (23), an inclined wedge tightening surface (45) is arranged on the compression part (23), a wedge tightening block is fixed on the inclined wedge tightening surface (45), the first compression cavity (109) comprises a first compression inclined surface (110), the core pulling molding block (4) is positioned between the first compression part (23) and the mold core (217), the compression part (23) is arranged in the first compression cavity (109), and the wedge tightening block is attached to the first compression inclined surface (110).
8. A molding die for facilitating back-off molding and demolding according to claim 1 or 7, characterized in that at least one driving part (108) is replaced by three driving parts (108), at least one side hole molding block (207) is replaced by three side hole molding blocks (207);
the three driving parts (108) comprise inclined guide posts (106), the three side hole forming blocks (207) comprise side hole forming parts (209) and inclined guide holes (212), and the three inclined guide posts (106) are respectively matched with the three inclined guide holes (212).
9. The molding die convenient for back-off molding and demolding according to claim 8, wherein the three driving parts (108) further comprise second compression cavities (105) communicated with the molding cavities (104), the three inclined guide posts (106) are located beside the second compression cavities (105) respectively, the three second compression cavities (105) comprise three second compression inclined planes (107), the three side hole molding blocks (207) further comprise third compression inclined planes (220) located on the side hole molding parts (209), the three side hole molding parts (209) are placed in the second compression cavities (105) respectively, and the second compression inclined planes (107) are attached to the third compression inclined planes (220).
10. The molding die for facilitating inverted molding and demolding according to any one of claims 1 to 5, 7 and 9, wherein a groove (204) and a through groove (205) are formed in the second module (201), a die core (217) block is fixed in the groove (204), the die core (217) is arranged on the die core (217), a concave is formed in the die core (217) block, the concave and the through groove (205) are spliced to form a sliding channel (219), a first core-pulling frame body (1) is fixed at a port of the sliding channel (219), and the first translation driving device (6) is installed on the first core-pulling frame body (1); the core pulling slide block (2) is fixedly provided with a second core pulling frame body (5), and the second translation driving device (8) is arranged on the second core pulling frame body (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN114393794A (en) | 2022-04-26 |
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