CN105082471B - Pulled core structure and injection mold - Google Patents
Pulled core structure and injection mold Download PDFInfo
- Publication number
- CN105082471B CN105082471B CN201510559659.5A CN201510559659A CN105082471B CN 105082471 B CN105082471 B CN 105082471B CN 201510559659 A CN201510559659 A CN 201510559659A CN 105082471 B CN105082471 B CN 105082471B
- Authority
- CN
- China
- Prior art keywords
- guide
- sliding block
- traction
- slider
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002347 injection Methods 0.000 title claims abstract description 31
- 239000007924 injection Substances 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 238000000034 method Methods 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 17
- 230000000670 limiting effect Effects 0.000 claims description 26
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B29C45/2602—Mould construction elements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention discloses a kind of pulled core structure and injection mold, wherein, pulled core structure includes the first sliding block, the second sliding block, guide pad and drive mechanism；The lower end of the second sliding block is connected to pulling face by haulage gear, and haulage gear bearing of trend along the second tilted direction；Guide pad is fixedly arranged on the lower template of injection mold, and with the spigot surface towards the second sliding block；Second sliding block is connected to spigot surface by guiding mechanism, and guiding mechanism bearing of trend along the first tilted direction；Drive mechanism includes being divided into the drive rod and drive hole of upper die plate and the first sliding block；From upper right, direction extends drive rod to left down.Technical scheme can simplify the pulled core structure of injection mold, and can improve kinetic stability of the injection mold in batch production process.
Description
Technical Field
The invention relates to the field of molds, in particular to a core pulling structure and an injection mold.
Background
In an injection mold, when a molded product has a plurality of inverted buckles extending in an oblique direction, generally, a plurality of inclined sliders and inclined tops need to be arranged on the injection mold, so as to realize core pulling of the inverted buckles through the matching motion of the plurality of inclined sliders and the inclined tops; thus, on the one hand, the whole injection mold is complicated in structure; on the other hand, under the condition of general processing precision, the injection mold not only needs to be provided with a sliding block but also needs to be provided with a slant top during assembly, so that the manufacturing cycle of the injection mold is prolonged; on the other hand, the matched structure of the inclined sliding block and the inclined top has instability, and the mold is easy to have problems in the process of mass production.
Disclosure of Invention
The invention mainly aims to provide a core pulling structure, which aims to simplify the core pulling structure of an injection mold and improve the motion stability of the injection mold in the batch production process.
In order to achieve the purpose, the core pulling structure provided by the invention is used for an injection mold comprising an upper mold plate and a lower mold plate so as to realize core pulling on a molded product with an inverted buckle extending along a first oblique direction, wherein the first oblique direction is a direction from top left to bottom right; the core pulling structure comprises a first sliding block, a second sliding block, a guide block and a driving mechanism; the lower template is provided with a sliding cavity with an opening at the upper end and used for accommodating the first sliding block, the second sliding block, the guide block and the driving mechanism, and a sliding block seat is fixedly arranged at the bottom of the sliding cavity; the first slider is slidably connected to the slider seat and has a traction surface facing away from the slider seat; the first sliding block is convexly provided with a forming part on the traction surface;
the forming part, the second sliding block, the guide block and the driving mechanism are sequentially connected and positioned on the traction surface; the upper end of the second sliding block and the forming part form the inverted cavity; the lower end of the second sliding block is connected to the traction surface through a traction mechanism, the extension direction of the traction mechanism is along a second oblique direction, and the second oblique direction is from the upper left to the lower right; the guide block is fixedly arranged on the lower template and is provided with a guide surface facing the second sliding block; the second sliding block is connected to the guide surface through a guide mechanism, and the extension direction of the guide mechanism is along the first oblique direction;
the driving mechanism comprises a driving rod and a driving hole which are respectively arranged on the upper template and the first sliding block; the driving rod extends from the upper right to the lower left.
Preferably, the guide mechanism comprises a guide rail convexly arranged on one side of the second sliding block facing the guide block and a guide groove concavely arranged on the guide surface, the guide groove extends along the first oblique direction, and the guide block is fittingly sleeved on the guide rail of the second sliding block through the guide groove;
or,
the guide mechanism comprises a guide groove and a guide rail, the guide groove is concavely arranged on one side, facing the guide block, of the second sliding block, the guide rail is convexly arranged on the guide surface, the guide rail extends along the first oblique direction, and the second sliding block is sleeved with the guide rail of the guide block in an adaptive mode through the guide groove.
Preferably, the traction mechanism comprises a traction guide rail convexly arranged at the lower end of the second sliding block and a traction guide groove concavely arranged on the traction surface, the traction guide groove extends along the second oblique direction, and the first sliding block is fittingly sleeved on the traction guide rail of the second sliding block through the traction guide groove;
or,
the traction mechanism comprises a traction guide groove concavely arranged at the lower end of the second sliding block and a traction guide rail convexly arranged on the traction surface, the traction guide rail extends along the second oblique direction, and the second sliding block is sleeved with the traction guide rail of the first sliding block through the traction guide groove in an adaptive manner.
Preferably, it is established the contained angle between second oblique direction and the horizontal direction is alpha, contained angle between first oblique direction and the vertical direction is beta, the length that the back-off extends along first oblique direction is a, and the die sinking in-process first slider is kept away from along the horizontal direction the stroke of sliding of first slider is b, has: b is not less than (a is cos beta)/(tan alpha) is sin beta.
Preferably, the angle α between the second oblique direction and the horizontal direction is between 10 ° and 30 °.
Preferably, the driving mechanism further comprises a shovel base fixedly arranged on the upper template, and one end of the driving rod is fixedly arranged on the shovel base; a die assembly convex block matched with the shovel base is arranged on the traction surface of the first sliding block in a protruding mode, and the driving hole is formed in the die assembly convex block; and in a die closing state, the other end of the driving rod penetrates through the driving hole.
Preferably, the shovel base is provided with a limiting surface which inclines the traction surface from the upper right to the lower left and faces the die assembly convex block, and the shovel is provided with a wear-resistant block on the basis of the limiting surface.
Preferably, the guide block is equipped with the groove of stepping down in the one side that deviates from guiding mechanism, the groove of stepping down is used for supplying shovel base adaptation business turn over.
Preferably, the sliding block seat is provided with a sliding surface which is in sliding contact with the first sliding block, and a limiting convex block is arranged on the sliding surface; the first sliding block is provided with a limiting groove corresponding to the limiting lug.
The invention also provides an injection mold, which comprises an upper mold plate, a lower mold plate and a core pulling structure, wherein the core pulling structure comprises a first sliding block, a second sliding block, a guide block and a driving mechanism; the lower template is provided with a sliding cavity with an opening at the upper end and used for accommodating the first sliding block, the second sliding block, the guide block and the driving mechanism, and a sliding block seat is fixedly arranged at the bottom of the sliding cavity; the first slider is slidably connected to the slider seat and has a traction surface facing away from the slider seat; the first sliding block is convexly provided with a forming part on the traction surface;
the forming part, the second sliding block, the guide block and the driving mechanism are sequentially connected and positioned on the traction surface; the upper end of the second sliding block and the forming part form the inverted cavity; the lower end of the second sliding block is connected to the traction surface through a traction mechanism, the extension direction of the traction mechanism is along a second oblique direction, and the second oblique direction is from the upper left to the lower right; the guide block is fixedly arranged on the lower template and is provided with a guide surface facing the second sliding block; the second sliding block is connected to the guide surface through a guide mechanism, the extending direction of the guide mechanism is along the first oblique direction, and the first oblique direction is from the upper left to the lower right;
the driving mechanism comprises a driving rod and a driving hole which are respectively arranged on the upper template and the first sliding block; the driving rod extends from the upper right to the lower left; one side of the first slider that is equipped with the shaping portion with it gives way the space to have between the slip chamber, for actuating mechanism drives in the die sinking process first slider to the space of giving way slides.
According to the technical scheme, one side of the second sliding block, which is far away from the back-off cavity, is connected with the guide surface of the guide block through the guide mechanism, and the lower end of the second sliding block is connected with the traction surface of the first sliding block through the traction mechanism, so that the first sliding block can stably realize core pulling in the horizontal direction of the formed back-off in the process of mass production of products of the injection mold, and meanwhile, the second sliding block can also stably realize core pulling in the first oblique direction of the formed back-off, so that the motion stability of the injection mold is improved; in addition, different from the complex structure of the inclined slide block and the inclined top matched movement structure, the structure of the injection mold is simpler, the core pulling in the horizontal direction of the first slide block is realized under the driving of the driving mechanism, the core pulling in the first inclined direction can be simultaneously realized by the second slide block under the traction of the first slide block, and the core pulling action is simpler.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an injection mold of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at II;
FIG. 3 is a schematic view of the injection mold of FIG. 1 in an open position;
FIG. 4 is an enlarged view of a portion of FIG. 3 at IV;
fig. 5 is an exploded schematic view of the core-pulling structure of the injection mold shown in fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Upper template | 2 | Lower template | 10 | First slide block |
| 11 | Traction surface | 12 | Forming section | 13 | Matched molds lug |
| 14 | Drive hole | 15 | Mounting port | 20 | Second slide block |
| 21 | Back-off cavity | 30 | Guide block | 31 | Guide surface |
| 32 | Abdicating groove | 3 | Sliding cavity | 40 | Driving mechanism |
| 41 | Shovel base | 411 | Limiting surface | 412 | Wear-resistant block |
| 42 | Driving rod | 50 | Sliding block seat | 51 | Slip plane |
| 52 | Spacing lug | 60 | Guide mechanism | 61 | Guide rail |
| 62 | Guide groove | 70 | Traction mechanism | 71 | Traction guide rail |
| 72 | Traction guide groove |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The invention provides a core pulling structure and an injection mold with the core pulling structure.
Referring to fig. 1 to 5, in an embodiment of the present invention, the injection mold includes an upper mold plate 1, a lower mold plate 2, and a core pulling structure. The core-pulling structure comprises a first slide block 10, a second slide block 20, a guide block 30 and a driving mechanism 40.
The lower template 2 is provided with a sliding cavity 3 with an opening at the upper end and used for accommodating the first sliding block 10, the second sliding block 20, the guide block 30 and the driving mechanism 40.
A slider seat 50 is fixedly arranged at the bottom of the sliding cavity 3, and the first slider 10 is slidably connected to the slider seat 50. In the present embodiment, specifically, the slider holder 50 has a slide surface 51 in sliding contact with the first slider 10.
The first slider 10 has a traction surface 11 facing away from the slider seat 50, and the first slider 10 is provided with a forming portion 12 protruding from the traction surface 11. In the clamped state, the molding section 12, the second slide 20, the guide block 30, and the drive mechanism 40 are connected in this order and positioned on the drawing surface 11.
In this embodiment, a reverse cavity 21 (see fig. 5) corresponding to the reverse size and shape of the molded product is provided at a middle position of the upper end of the second slider 20, and in the mold clamping state, the second slider 20 abuts against the molding portion 12 of the first slider 10, and the reverse cavity is formed between the upper end of the second slider 20 and the molding portion 12 of the first slider 10.
The lower end of the second slider 20 is connected to the traction surface 11 through a traction mechanism 70, and the extension direction of the traction mechanism 70 is along a second oblique direction. In this embodiment, the traction surface 11 preferably extends along the second oblique direction, and the lower end of the second slider 20 abuts against the traction surface 11.
The guide block 30 is fixedly arranged on the lower template 2 and has a guide surface 31 facing the second slide block 20. The second slider 20 is connected to the guide surface 31 via a guide mechanism 60, and the extending direction of the guide mechanism 60 is along the first oblique direction. In this embodiment, the guiding surface 31 preferably extends along the first oblique direction, and a side of the second slider 20 facing away from the forming portion 12 is disposed to be attached to the guiding surface 31.
One side of the first slider 10, which is provided with the forming part 12, has a yielding space between the sliding cavities 3, so that the driving mechanism 40 drives the first slider 10 to slide in the yielding space in the mold opening process.
Specifically, in the mold opening process, the driving mechanism 40 drives the first slider 10 to slide along the horizontal direction to the abdicating space and keep away from the second slider 20, and the second slider 20 is in the traction force of the traction mechanism 70 and the guiding action of the guiding mechanism 60 are followed by the first oblique direction sliding, so as to realize the inverted core-pulling of the upper end of the forming part 12 and the second slider 20 after forming.
In the present embodiment, the first oblique direction refers to a direction from top left to bottom right (see arrow a in fig. 2), the second oblique direction refers to a direction from top left to bottom right (see arrow B in fig. 2), and an inclination of the first oblique direction to the horizontal direction is greater than an inclination of the second oblique direction to the horizontal direction. In the technical scheme of the invention, in the process of opening the upper template 1 and the lower template 2, the upper template 1 drives the driving mechanism 40 to move upwards, so that the driving mechanism 40 drives the first slider 10 to translate leftwards along the slider seat 50, and meanwhile, the second slider 20 slides along a first oblique direction along with the leftward translation of the first slider 10 under the traction acting force of the traction mechanism 70 and the guiding action of the guiding mechanism 60; when the upper template 1 and the lower template 2 complete the mold opening, the first slider 10 completes the core pulling in the horizontal direction of the molding back-off, and meanwhile, the second slider 20 slides downwards and obliquely relative to the guide surface 31 of the guide block 30 under the traction of the first slider 10 to complete the core pulling in the first oblique direction of the molding back-off, thereby completing the demoulding process of the back-off of the molded product.
According to the technical scheme, one side of the second sliding block 20, which is far away from the back-off cavity 21, is connected with the guide surface 31 of the guide block 30 through the guide mechanism 60, and the lower end of the second sliding block 20 is connected with the traction surface 11 of the first sliding block 10 through the traction mechanism 70, so that the first sliding block 10 can stably realize core pulling in the horizontal direction of the molding back-off in the process of mass production of products of the injection mold, and meanwhile, the second sliding block 20 can also stably realize core pulling in the first oblique direction of the molding back-off, so that the motion stability of the injection mold is improved; in addition, different from the complex structure of the inclined slide block and the inclined top matched movement structure, the structure of the injection mold is simpler, and under the driving of the driving mechanism 40, the core pulling in the horizontal direction of the first slide block 10 is realized, and simultaneously, the core pulling in the first inclined direction of the second slide block 20 can be realized under the traction of the first slide block 10, so that the core pulling action is simpler.
Referring to fig. 2, 4 and 5, in the present embodiment, specifically, the guide mechanism 60 includes a guide rail 61 protruding from one side of the second slider 20 facing the guide block 30 and a guide groove 62 recessed from the guide surface 31, the guide groove 62 extends along the first oblique direction, and the guide block 30 is fittingly sleeved on the guide rail 61 of the second slider 20 through the guide groove 62. In this embodiment, the guide groove 62 is a groove with an inverted "T" shaped cross section, and the guide rail 61 is a rail adapted to the size and shape of the cross section of the guide groove 62, so that the second slider 20 does not shake or otherwise move unevenly when sliding relative to the guide block 30 along the first oblique direction. It should be emphasized that, in other embodiments of the present invention, the guide mechanism 60 may further include a guide groove concavely formed on a side of the second slider 20 facing the guide block 30, and a guide rail convexly formed on the guide surface 31 of the guide block 30, wherein the guide rail is adapted to the guide groove.
Similarly, referring to fig. 2, 4 and 5, in the present embodiment, the traction mechanism 70 includes a traction guide rail 71 protruding from the lower end of the second slider 20 and a traction guide groove 72 recessed from the traction surface 11, the traction guide groove 72 extends along the second oblique direction, and the first slider 10 is fittingly sleeved on the traction guide rail 71 of the second slider 20 through the traction guide groove 72. In this embodiment, the drawing guide groove 72 is a guide groove with an inverted "T" shaped cross section, and the drawing guide rail 71 is a guide rail adapted to the size and shape of the cross section of the drawing guide groove 72, so that the lower end of the second slider 20 does not have unbalanced movement such as shaking when sliding with respect to the drawing surface 11 of the first slider 10. It should be emphasized that, in other embodiments of the present invention, the traction mechanism 70 may further include a traction guide groove recessed at the lower end of the second slider 20, and a traction guide rail adapted to the traction guide groove protruding from the guide surface 31 of the first slider 10.
Referring to fig. 2 and 4, in the present embodiment, since the core pulling action of the second slider 20 in the first oblique direction is completed under the driving of the core pulling action of the first slider 10 in the horizontal direction, the sliding stroke b of the first slider 10 in the horizontal direction away from the first slider 10 may affect the sliding stroke of the second slider 20 in the first oblique direction. It can be understood that the completion of the mold releasing process of the molded product undercut can be ensured only if the sliding stroke of the second slider 20 is not less than the extension a of the molded undercut in the first oblique direction. If the included angle between the second oblique direction and the horizontal direction is alpha, and the included angle between the first oblique direction and the vertical direction is beta, the method comprises the following steps: b ═ c cos β)/(tan α) -c × sin β, since the sliding stroke of the second slider 20 in the first oblique direction is required to be greater than or equal to a, therefore,
b ≧ (a × cos β)/(tan α) -a × sin β.
In this embodiment, it is preferable that the angle α between the second oblique direction and the horizontal direction is between 10 ° and 30 °. If α is greater than 30 °, the interaction force between the second slider 20 and the first slider 10 is too large to facilitate the sliding of the second slider 20 relative to the first slider 10; if α is less than 10 °, in order to completely disengage the second slider 20 from the molded product, the sliding stroke of the first slider 10 will be long, and thus the driving mechanism 40 needs a long driving rod 42 to realize the sliding stroke of the first slider, however, the longer the driving rod 42, the more easily the free end of the driving rod 42 is deformed, which is not favorable for the repeated driving and use of the driving rod 42.
Referring to fig. 2, 4 and 5, in the present embodiment, further, the driving mechanism 40 includes a shovel base 41 fixed to the upper die plate 1, and a driving rod 42 having one end fixed to the shovel base 41; the drive lever 42 extends from the upper right to the lower left. The first slide block 10 is provided with a mold clamping convex block 13 which is matched with the shovel base 41 on the traction surface 11 in a protruding manner. The driving mechanism 40 further includes a driving hole 14 formed on the mold clamping protrusion 13 of the first slide 10 corresponding to the driving rod 42. In the mold clamping state, the other end of the drive rod 42 is inserted into the drive hole 14. In the process of opening the mold, the upper mold plate 1 drives the shovel base 41 and the driving rod 42 to move upwards, so that the first slider 10 translates leftwards through the driving rod 42 to realize core pulling of the forming part 12. Of course, in other embodiments of the present invention, the driving rod may be disposed on the first sliding block 10, and the driving rod extends from the left lower direction to the right upper direction, and correspondingly, the shovel base 41 is provided with a driving hole.
In this embodiment, the shovel base 41 has a limiting surface 411 that inclines the traction surface 11 from top right to bottom left and faces the mold clamping protrusion 13, and in the mold clamping state, the limiting surface 411 abuts against one surface of the mold clamping protrusion 13 facing the molding portion 12 to limit the core pulling of the first slider 10 along the horizontal direction and ensure that the molding portion 12 of the first slider 10 is connected with the upper end of the second slider 20 to form an inverted cavity. In this embodiment, the drawing guide groove 72 is provided with a mounting opening 15 at a position adjacent to the mold clamping projection 13, through which the drawing guide rail 71 at the lower end of the second slide 20 is inserted.
Further, the shovel base 41 is provided with a wear-resistant block 412 on the limiting surface 411. In this embodiment, the wear block 412 is made of a wear resistant material, such as but not limited to high manganese steel, high manganese alloy, and the like. According to the technical scheme, the wear-resistant block 412 is abutted against the die assembly convex block 13, on one hand, after the wear-resistant block 412 is worn, only the wear-resistant block 412 can be replaced without replacing the shovel base 41, and the maintenance cost of the injection mold is reduced; on the other hand, the size of the wear-resisting block 412 can be selected to adjust the fit degree between the die-closing convex block 13 and the shovel base 41 in the die-closing state.
Referring to fig. 5, in this embodiment, further, an avoiding groove 32 is formed in a side of the guide block 30 facing away from the guide mechanism 60, and the avoiding groove 32 is used for allowing the shovel base 41 to fit in and out. In a mold closing state, the shovel base 41 is partially accommodated in the receding groove 32; during the mold opening process, the shovel base 41 is separated from the receding groove 32 along the mold opening direction. Thus, on one hand, the extending blocks on the two sides of the abdicating groove 32 are beneficial to enhancing the strength of the guide block 30; on the other hand, the extending blocks on the two sides of the abdicating groove 32 are also beneficial to increasing the fixing area of the connection between the guide block 30 and the lower template 2, and particularly, when the screw is fixedly arranged, more positions for arranging the screw are provided.
Furthermore, the sliding block seat 50 is provided with a limit bump 52 on the sliding surface 51; the first sliding block 10 is provided with a limiting groove (not shown) corresponding to the limiting projection 52. In this embodiment, the limiting protrusion 52 may have a plurality of (for example, but not limited to, two) limiting protrusions 52, and the limiting protrusion 52 and the slider seat 50 are separately arranged; specifically, the slider seat 50 is opened with an installation groove (not labeled) for installing the limit bump 52; the lower end of the limit bump 52 is provided with an elastic device (not shown), and in a natural state, the limit bump 52 protrudes out of the sliding surface 51; in the process that the first slider 10 slides on the sliding surface 51, the limiting projection 52 is in a compressed state under the abutting of the bottom surface of the first slider 10 until the limiting groove on the bottom surface of the first slider 10 slides to the position above the limiting projection 52, and at this time, the compressed state of the limiting projection 52 is released and bounces into the limiting groove, so that the limiting effect on the first slider 10 is achieved, and the driving rod 42 can accurately enter the driving hole 14 when the mold is closed next time, and the driving rod 42 is prevented from colliding with the first slider 10.
In this embodiment, the assembling process of the injection mold is as follows: first, the wear-resistant block 412 is fixed to the shovel base 41, then the driving rod 42 is inserted into the shovel base 41, and the shovel base 41 and the driving rod 42 are fixedly mounted on the upper die plate 1. Then, smoothly loading the traction guide rail 71 at the lower end of the second slider 20 into the traction guide groove 72 of the first slider 10 through the mounting opening 15, and then inserting the first slider 10 and the second slider 20 from the bottom surface of the lower template 2; and the first slide block 10 is drawn to the right as much as possible to make the stroke of the first slide block 10 free. Then, the limit projection 52 is mounted on the slider holder 50, and then the slider holder 50 is fixed to the bottom side of the lower die plate 2. Finally, the guide block 30 is slid into the lower die plate 2 along the guide rail 61 of the second slider 20, and the guide block 30 is fixed to the lower die plate 2.
It should be noted that the technical solutions of the embodiments of the present invention can be combined with each other, but must be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory or can not be realized, the combination of the technical solutions should be considered to be absent and not to be within the protection scope of the present invention.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A core pulling structure is used for an injection mold comprising an upper mold plate and a lower mold plate so as to realize core pulling of a molded product with a back-off extending along a first oblique direction, wherein the first oblique direction is from the upper left to the lower right, and the core pulling structure is characterized by comprising a first sliding block, a second sliding block, a guide block and a driving mechanism; the lower template is provided with a sliding cavity with an opening at the upper end and used for accommodating the first sliding block, the second sliding block, the guide block and the driving mechanism, and a sliding block seat is fixedly arranged at the bottom of the sliding cavity; the first slider is slidably connected to the slider seat and has a traction surface facing away from the slider seat; the first sliding block is convexly provided with a forming part on the traction surface;
the forming part, the second sliding block, the guide block and the driving mechanism are sequentially connected and positioned on the traction surface; the upper end of the second sliding block and the forming part form the inverted cavity; the lower end of the second sliding block is connected to the traction surface through a traction mechanism, the extension direction of the traction mechanism is along a second oblique direction, and the second oblique direction is from the upper left to the lower right; the guide block is fixedly arranged on the lower template and is provided with a guide surface facing the second sliding block; the second sliding block is connected to the guide surface through a guide mechanism, and the extension direction of the guide mechanism is along the first oblique direction;
the driving mechanism comprises a driving rod and a driving hole which are respectively arranged on the upper template and the first sliding block; the driving rod extends from the upper right to the lower left.
2. The core pulling structure according to claim 1, wherein the guide mechanism comprises a guide rail protruding from one side of the second slider facing the guide block and a guide groove concavely formed in the guide surface, the guide groove extends in the first oblique direction, and the guide block is fittingly sleeved on the guide rail of the second slider through the guide groove;
or,
the guide mechanism comprises a guide groove and a guide rail, the guide groove is concavely arranged on one side, facing the guide block, of the second sliding block, the guide rail is convexly arranged on the guide surface, the guide rail extends along the first oblique direction, and the second sliding block is sleeved with the guide rail of the guide block in an adaptive mode through the guide groove.
3. The core pulling structure according to claim 1, wherein the traction mechanism comprises a traction guide rail protruding from a lower end of the second slider and a traction guide groove concavely formed on the traction surface, the traction guide groove extends in the second oblique direction, and the first slider is fittingly sleeved on the traction guide rail of the second slider through the traction guide groove;
or,
the traction mechanism comprises a traction guide groove concavely arranged at the lower end of the second sliding block and a traction guide rail convexly arranged on the traction surface, the traction guide rail extends along the second oblique direction, and the second sliding block is sleeved with the traction guide rail of the first sliding block through the traction guide groove in an adaptive manner.
4. The core pulling structure according to claim 1, wherein an included angle between the second oblique direction and the horizontal direction is α, an included angle between the first oblique direction and the vertical direction is β, the length of the inverted buckle extending along the first oblique direction is a, a sliding stroke of the first sliding block away from the first sliding block along the horizontal direction in the mold opening process is b,
comprises the following steps: b is not less than (a is cos beta)/(tan alpha) is sin beta.
5. The core pulling structure according to claim 4, wherein the angle α between the second oblique direction and the horizontal direction is between 10 ° and 30 °.
6. The core pulling structure of claim 1, wherein the driving mechanism further comprises a shovel base fixedly arranged on the upper mold plate, and one end of the driving rod is fixedly arranged on the shovel base; a die assembly convex block matched with the shovel base is arranged on the traction surface of the first sliding block in a protruding mode, and the driving hole is formed in the die assembly convex block; and in a die closing state, the other end of the driving rod penetrates through the driving hole.
7. The core pulling structure as claimed in claim 6, wherein the shovel base has a limiting surface which inclines the traction surface from top right to bottom left and faces the mold clamping protruding block, and the shovel is provided with a wear-resistant block on the basis of the limiting surface.
8. The core pulling structure of claim 6, wherein the guide block is provided with an abdicating groove at one side facing away from the guide mechanism, and the abdicating groove is used for the shovel base to adapt in and out.
9. The core pulling structure of claim 1, wherein the slider holder has a sliding surface in sliding abutment with the first slider, and a limiting projection is provided on the sliding surface; the first sliding block is provided with a limiting groove corresponding to the limiting lug.
10. An injection mold, characterized in that, includes cope match-plate pattern, lower bolster and the structure of loosing core of any of claims 1 to 9, the one side that is equipped with of first slider the shaping portion with have the space of stepping down between the slip chamber, for actuating mechanism drives in the die sinking process first slider to the space of stepping down slides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510559659.5A CN105082471B (en) | 2015-09-06 | 2015-09-06 | Pulled core structure and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510559659.5A CN105082471B (en) | 2015-09-06 | 2015-09-06 | Pulled core structure and injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105082471A CN105082471A (en) | 2015-11-25 |
| CN105082471B true CN105082471B (en) | 2017-06-30 |
Family
ID=54564225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510559659.5A Active CN105082471B (en) | 2015-09-06 | 2015-09-06 | Pulled core structure and injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105082471B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107755660B (en) * | 2017-08-29 | 2023-07-11 | 宁波吉烨汽配模具有限公司 | Mould for producing automobile roof support products |
| CN108858914B (en) * | 2018-07-12 | 2024-02-02 | 宁波华众塑料制品有限公司 | Time-delay sliding block assembly |
| CN110001009B (en) * | 2019-02-22 | 2024-01-16 | 浙江亚美力新能源科技有限公司 | Forming die of hydroecium |
| CN110228169B (en) * | 2019-07-23 | 2024-07-02 | 宁波奥克斯电气股份有限公司 | Bidirectional core pulling mechanism and injection mold |
| CN113954321A (en) * | 2021-11-10 | 2022-01-21 | 深圳市银宝山新科技股份有限公司 | Pitched roof mechanism and die |
| CN114833998A (en) * | 2022-03-30 | 2022-08-02 | 创意塑胶工业（苏州）有限公司 | Demoulding mechanism of loudspeaker box structural part injection mould |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342770A (en) * | 2008-01-14 | 2009-01-14 | 王朝誉 | Standard component of mould |
| CN103611918A (en) * | 2013-11-25 | 2014-03-05 | 长城汽车股份有限公司 | Core slantly-pulling mechanism and die-casting die |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0839618A (en) * | 1994-07-29 | 1996-02-13 | Trinity Ind Corp | Injection molding machine |
-
2015
- 2015-09-06 CN CN201510559659.5A patent/CN105082471B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342770A (en) * | 2008-01-14 | 2009-01-14 | 王朝誉 | Standard component of mould |
| CN103611918A (en) * | 2013-11-25 | 2014-03-05 | 长城汽车股份有限公司 | Core slantly-pulling mechanism and die-casting die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105082471A (en) | 2015-11-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105082471B (en) | Pulled core structure and injection mold | |
| CN108044887A (en) | A kind of handle mould emptier and its molding structure and its application method | |
| CN113021783A (en) | Secondary slide mechanism for flip front mould | |
| CN208664269U (en) | A kind of car hands shank molding structure | |
| CN114131839A (en) | Plastic injection mold of injection molding machine | |
| CN110370565B (en) | Mix oblique mechanism of taking out and injection mold | |
| CN211440987U (en) | Combined core-pulling mechanism and injection mold | |
| CN217862611U (en) | Special-shaped shell forming die | |
| CN210283102U (en) | Mixed inclined pumping mechanism and injection mold | |
| CN210116135U (en) | Multi-direction core-pulling mechanism for sliding block of injection mold | |
| CN112406039A (en) | Core-pulling mechanism with composite inner-pulling slide block | |
| CN113857349B (en) | Product turnover mechanism of continuous stamping die system | |
| CN111070577A (en) | Combined core-pulling mechanism of inclined top fastener | |
| CN215998329U (en) | Product turnover mechanism of continuous stamping die system | |
| CN202412610U (en) | Side parting mechanism used in injection mold | |
| CN214491453U (en) | Core pulling mechanism | |
| CN109049575A (en) | The alternately mode locking control mechanism of injection mould open-close mould | |
| CN210047016U (en) | Tertiary line position demolding structure of injection mold | |
| CN211941899U (en) | Multi-direction demoulding structure of loosing core | |
| CN113733492A (en) | Straight rod drive type sliding block mechanism and injection mold | |
| CN111976088A (en) | Five metals positioning mechanism in injection mold | |
| CN201901436U (en) | Guide rail and slider structure | |
| CN217021263U (en) | Multi-buckle multi-hole-position high-quality demolding structure for injection molding part | |
| CN218857593U (en) | Sliding block mechanism of die | |
| CN212602991U (en) | Five metals positioning mechanism in injection mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 first floor, R & D building of SKYWORTH science and Technology Industrial Park, Baoan District, Shiyan street, Baoan District, Shenzhen. Patentee after: SKYWORTH group intelligent equipment Co., Ltd. Address before: 518000 first floor, R & D building of SKYWORTH science and Technology Industrial Park, Baoan District, Shiyan street, Baoan District, Shenzhen. Patentee before: Shenzhen Skyworth Precision Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |