CN215151442U

CN215151442U - Injection mold of secondary loose core

Info

Publication number: CN215151442U
Application number: CN202121341607.8U
Authority: CN
Inventors: 李道文
Original assignee: Zhuhai Seikawa Products Co ltd
Current assignee: Zhuhai Seikawa Products Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-12-14
Anticipated expiration: 2031-06-16

Abstract

The utility model provides an injection mold of secondary loose core, including front mould benevolence, back mould benevolence, the mechanism is taken out to side position and secondary, be formed with product shaping chamber between front mould benevolence, back mould benevolence and the side position of going, be provided with into jiao kou on the front mould benevolence, it communicates with product shaping chamber to advance jiao kou, the mechanism is taken out to the secondary includes first briquetting, first oblique guide arm, first slider, first insert and the time delay is inserted, first briquetting is through first oblique guide arm and first slider swing joint, first slider and the time delay sliding connection of side position, first end and first slider sliding connection of inserting, first second end of inserting stretches into the product shaping intracavity, first slip direction of inserting intersects with the slip direction of first slider, the time delay is inserted and is set up on the side position, the one end that the time delay was inserted stretches into the product shaping intracavity. The utility model has the advantages of simple structure, convenient processing and later maintenance, high structure precision and long service life.

Description

Injection mold of secondary loose core

Technical Field

The utility model relates to an injection mold field specifically is to an injection mold of secondary is loosed core.

Background

Inclined holes often appear in the design and manufacturing process of injection molding, and the inclined holes form a certain angle with the mold opening direction, so that the problem of inclined core pulling needs to be considered in the mold structural design. At present, the inclined core pulling is completed by adopting an inclined guide pillar. However, for the insert with two different extending directions, the insert with two different extending directions cannot be taken out of the product forming cavity through the inclined guide post once inclined core pulling, and if the insert with two different extending directions is barely taken out, the inclined guide post is easy to break, and the service life of the die is affected. If each insert is provided with an independent core pulling mechanism, the size of the die can be increased, the complexity of the die structure can be increased, and the die is not favorable for the production and the maintenance of the die and the later period of the die.

Disclosure of Invention

The utility model aims at providing a simple structure, operation maintain convenient secondary's injection mold of loosing core.

In order to achieve the above purpose, the utility model provides an injection mold for secondary core pulling, which comprises a front mold core, a rear mold core, a side slide and a secondary core pulling mechanism, wherein a product forming cavity is formed among the front mold core, the rear mold core and the side slide, a glue inlet is arranged on the front mold core and is communicated with the product forming cavity, the secondary core pulling mechanism comprises a first pressing block, a first inclined guide rod, a first sliding block, a first insert block and a time delay insert block, the first pressing block is movably connected with the first sliding block through the first inclined guide rod, the first sliding block is connected with the side slide in a sliding way, two sides of the first sliding block are respectively provided with a cross rod, the side slide is provided with a connecting hole, the cross rod is inserted into the connecting hole, in the moving direction of the first sliding block, a preset distance is reserved between the hole wall of one side of the connecting hole and the corresponding side wall of the cross rod, the first end of the first insert block is connected with the first sliding block in a sliding way, the second end of the first insert block extends into the product forming cavity, the sliding direction of the first insert is intersected with the sliding direction of the first sliding block, the delay insert is arranged on the side slide, and one end of the delay insert extends into the product forming cavity.

According to the scheme, when the mold is opened, the first pressing block drives the first sliding block to horizontally slide through the first inclined guide post, the first insert and the first sliding block synchronously move in different directions, so that the first insert is firstly separated from a product, one-time core pulling action is realized, and in the process, the transverse rod moves in opposite lateral positions in the connecting hole; then the first sliding block continues to horizontally slide, so that the cross rod is abutted to the hole wall of the connecting hole to drive the side slide to slide together, and at the moment, the delay insert and the side slide synchronously and in the same direction, so that the delay insert is separated from a product, and secondary core pulling action is realized. The utility model is not only simple in structure, processing and later stage maintenance convenient, the structure precision is high moreover, and long service life can guarantee that full-automatic stable production and production efficiency are high.

The first end of inserting is provided with joint portion, and joint portion lies in oblique spout and can slide along the relative oblique spout of the extending direction of oblique spout.

The further scheme is that a circular groove and a notch are formed in the side wall of one side of the side slide position facing the product forming cavity, the notch is communicated with the circular groove, the delay insert is embedded into the notch, and the side wall of the delay insert is in smooth transition with the groove wall of the circular groove.

The utility model provides a further scheme is, the middle part of side position of going is provided with first mounting groove and second mounting groove, first slider is connected in first mounting groove with sliding, the connecting hole is located the cell wall of first mounting groove, connecting hole and first mounting groove intercommunication, the second mounting groove communicates with first mounting groove, the bulge is connected in the second mounting groove with sliding, the cell wall of second mounting groove is provided with the third mounting groove, the both ends of third mounting groove communicate with second mounting groove and circular recess respectively, first insert be located the third mounting groove and can follow the extending direction removal of third mounting groove.

The injection mold further comprises a second pressing block, a second inclined guide post, a second sliding block and a second insert, wherein the second pressing block is positioned on one side, away from the first pressing block, of the rear mold core, the second pressing block is connected with the second sliding block through the second inclined guide post, the moving direction of the second sliding block is intersected with the moving direction of the first sliding block, the second insert is arranged on the second sliding block, and one end of the second insert extends into the product forming cavity.

The further scheme is that a clamping groove is formed in the end portion of the second insert, a protruding portion is arranged at the end portion of the first insert, and the protruding portion is connected with the clamping groove.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is an exploded view of a first view angle of a secondary core-pulling mechanism according to an embodiment of the present invention.

Fig. 4 is an exploded view of a second perspective of a secondary core-pulling mechanism according to an embodiment of the present invention.

Fig. 5 is an enlarged view at B in fig. 4.

Fig. 6 is a sectional view of the secondary core-pulling mechanism in the embodiment of the present invention during primary core-pulling.

Fig. 7 is an enlarged view at C in fig. 6.

Fig. 8 is a sectional view of the secondary core-pulling mechanism in the embodiment of the present invention.

Fig. 9 is an enlarged view at D in fig. 8.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 1 to 4, the injection mold provided in this embodiment includes a front fixing plate 1, a front mold plate 2, a rear mold plate 5, a front mold core 3, a rear mold core 4, a side slide 6, a secondary core pulling mechanism 7, and a core pulling assembly 8. The front template 2 is positioned below the front fixing plate 1, the front template 2 and the rear template 5 are arranged up and down oppositely, and the front mold core 3, the rear mold core 4, the side walking position 6, the secondary core pulling mechanism 7 and the core pulling component 8 are positioned between the front template 2 and the rear template 5. The front mold core 3 and the rear mold core 4 are arranged oppositely, the side-moving position 6 is located on the first side of the front mold core 3 and the first side of the rear mold core 4, and product forming cavities 9 are formed among the front mold core 3, the rear mold core 4 and the side-moving position 6. The front mold core 3 is provided with a glue inlet 31, the front fixing plate 1 and the front mold plate 2 are both provided with glue inlet channels, and the glue inlet 31 is communicated with the product molding cavity 9 and the glue inlet channels respectively and used for injecting glue into the product molding cavity 9. The secondary core-pulling mechanism 7 is connected with the side slide 6 and is used for pulling out two inserts with different angles positioned on the left side of the product forming cavity 9; the core-pulling assembly 8 is positioned at the second side of the front mold core 3 and the rear mold core 4 and is used for extracting the insert positioned at the right side of the product forming cavity 9.

Referring to fig. 3 to 9 in conjunction with fig. 1, the secondary core-pulling mechanism 7 includes a first pressing block 71, a protruding block 72, a first angle guide post 73, a first sliding block 74, a first insert 75 and a time delay insert 76.

The first pressing block 71 is movably connected with the first sliding block 74 through a first inclined guide pillar 73, a first inclined hole is formed in the first pressing block 71, a second inclined hole is formed in the first sliding block 74, and the first inclined guide pillar 73 is inserted into the first inclined hole and the second inclined hole. When the mold is opened, the front mold plate 2 drives the first pressing block 71 to ascend, and the first sliding block 74 moves in the direction far away from the product forming cavity 9 along the horizontal direction under the action of the first inclined guide pillar 73. A projecting block 72 is provided on the side of the first presser block 71 adjacent to the product-forming chamber 9, the projecting block 72 moving synchronously with the first slider 74. The protrusion 72 is formed with an inclined sliding slot 721, and the inclined sliding slot 721 extends obliquely outward from an end close to the first pressing block 71. The extending direction of the inclined slide slot 721 intersects the moving direction of the first slider 74 at an acute angle. A first end of the first insert 75 is slidably connected to the projecting block 72 and a second end of the first insert 75 extends into the product forming cavity 9. The first end of the first insert 75 is provided with a clamping portion, and the clamping portion is located in the inclined sliding slot 721 and can slide relative to the inclined sliding slot 721 along the extending direction of the inclined sliding slot 721. The first insert 75 and the first slide block 74 move synchronously in different directions, and the sliding direction of the first insert 75 is intersected with the sliding direction of the first slide block 74, that is, under the action of the inclined chute 721, the first insert 75 moves along the extending direction thereof, so that the first insert 75 is separated from the product 10, and a one-time core pulling function is realized.

The first slider 74 is slidably connected to the lateral slide 6. Specifically, a cross bar 741 is inserted through the middle of the first slider 74, and two ends of the cross bar 741 respectively protrude out of corresponding side surfaces of the first slider 74. The side slide 6 is provided with a connecting hole 61, the end of the cross rod 741 is inserted into the connecting hole 61, and a preset distance is provided between the hole wall of one side of the connecting hole 61 and the corresponding side wall of the cross rod 741 in the moving direction of the first slider 74, so that the cross rod 741 can move relative to the connecting hole 61 in the connecting hole 61 along the moving direction of the first slider 74. The delay insert 76 is arranged on the side slide 6, and one end of the delay insert 76 extends into the product forming cavity 9. The first slide block 74 firstly moves relative to the side slide 6 until the side wall of the cross rod 741 abuts against the hole wall of the connecting hole 61, at this time, the cross rod 741 pushes the side slide 6 to move, and further drives the delay insert 76 to synchronously move in the same direction, so that the delay insert 76 is separated from the product 10, and a secondary shaft core function is realized.

In fig. 3 and 4, the middle of the side slide 6 is provided with a first mounting groove 62 and a second mounting groove 63, the first slider 74 is slidably coupled in the first mounting groove 62, the connection holes 61 are located on both side groove walls of the first mounting groove 62, and the connection holes 61 communicate with the first mounting groove 62. The second mounting groove 63 is communicated with the first mounting groove 62, the protruding block 72 is slidably connected in the second mounting groove 63, a third mounting groove 64 is arranged on the wall of the second mounting groove 63, two ends of the third mounting groove 64 are respectively communicated with the second mounting groove 63 and the product forming cavity 9, and the first insert 75 is positioned in the third mounting groove 64 and can move along the extending direction of the third mounting groove 64.

In fig. 5, the side wall of the side row 6 facing the product forming cavity 9 is provided with a circular groove 65 and a notch 66, the notch 66 is located on the circular edge of the circular groove 65, the notch 66 is communicated with the circular groove 65, and the delay insert 76 is embedded in the notch 66. The circular groove 65 is a part of the product forming cavity 9, and the side wall of the delay insert 76 is in smooth transition with the groove wall of the circular groove 65.

In fig. 3 and 4, the core pulling assembly 8 includes a second pressing block 81, a second angle guide post 82, a second sliding block 83 and a second insert 84, the second pressing block 81 is located on a side of the rear mold core 4 away from the first pressing block 71, and the second pressing block 81 is connected with the second sliding block 83 through the second angle guide post 82. A second insert 84 is provided on the second slide 83, one end of the second insert 84 projecting into the product-forming cavity 9. When the mold is opened, the front mold plate 2 drives the second pressing block 81 to rise, and under the action of the second inclined guide post 82, the second sliding block 83 slides along the horizontal direction in the direction away from the product molding cavity 9, so as to drive the second insert 84 to move in the direction away from the product molding cavity 9.

In fig. 6 and 7, the direction of movement of the second insert 84 intersects the direction of movement of the first slide 74, and in order to completely disengage the second insert 84 from the product 10, the displacement of the second insert 84 is greater than the displacement of the first insert 75. The end of the second insert 84 is provided with a slot, and the second end of the first insert 75 is provided with a protrusion, which is connected to the slot, so that the injection molded product 10 has a through hole.

In summary, in the mold opening of the utility model, the first pressing block drives the first sliding block to horizontally slide through the first inclined guide post, and the first insert and the first sliding block synchronously move in different directions, so that the first insert is firstly separated from the product to realize one-time core-pulling action, and in the process, the cross rod moves relative to the side slide in the connecting hole; then the first sliding block continues to horizontally slide, so that the cross rod is abutted against the hole wall of the connecting hole to drive the side slide to synchronously slide in the same direction, and at the moment, the delay insert and the side slide synchronously and in the same direction, so that the delay insert is separated from a product, and secondary core pulling action is realized. The utility model is not only simple in structure, processing and later stage maintenance convenient, and structural accuracy is high moreover, and long service life can guarantee that full-automatic production is stable, production efficiency is high.

Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, and are not intended to limit the scope of the present invention, as those skilled in the art will appreciate that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended to cover all such modifications, equivalents, and improvements as fall within the true spirit and scope of the invention.

Claims

1. An injection mold for secondary core pulling is characterized by comprising a front mold core, a rear mold core, a side slide and a secondary core pulling mechanism, wherein a product forming cavity is formed among the front mold core, the rear mold core and the side slide, a glue inlet is formed in the front mold core, and the glue inlet is communicated with the product forming cavity;

the secondary core-pulling mechanism comprises a first pressing block, a first inclined guide rod, a first sliding block, a first insert and a delay insert, the first pressing block is movably connected with the first sliding block through the first inclined guide rod, the first sliding block is in sliding connection with the side slide, the two sides of the first sliding block are respectively provided with a cross bar, the side slide is provided with a connecting hole, the cross bar is inserted in the connecting hole, and in the moving direction of the first sliding block, a preset distance is kept between the hole wall at one side of the connecting hole and the corresponding side wall of the cross rod, the first end of the first insert is connected with the first slide block in a sliding way, the second end of the first insert extends into the product forming cavity, the sliding direction of the first insert is intersected with the sliding direction of the first sliding block, the delay insert is arranged on the side slide, and one end of the delay insert extends into the product forming cavity.

2. The injection mold with the secondary core pulling function according to claim 1, characterized in that:

the one end of first slider is provided with the protrusion piece, oblique spout has been seted up to the protrusion piece, the extending direction of oblique spout with the moving direction acute angle of first slider is crossing, the first end of first inserting is provided with joint portion, joint portion is located in the oblique spout and can follow the extending direction of oblique spout is relative oblique spout slides.

3. The injection mold with the secondary core pulling function according to claim 2, characterized in that:

the side wall of one side of the side slide position facing the product forming cavity is provided with a circular groove and a notch, the notch is communicated with the circular groove, the delay insert is embedded into the notch, and the side wall of the delay insert is in smooth transition with the groove wall of the circular groove.

4. The injection mold with the secondary core pulling function according to claim 3, characterized in that:

the middle part of side position of going is provided with first mounting groove and second mounting groove, first slider is connected with sliding in the first mounting groove, the connecting hole is located on the cell wall of first mounting groove, the connecting hole with first mounting groove intercommunication, the second mounting groove with first mounting groove intercommunication, the bulge is connected with sliding in the second mounting groove, the cell wall of second mounting groove is provided with the third mounting groove, the both ends of third mounting groove respectively with the second mounting groove reaches circular recess intercommunication, first insert be located in the third mounting groove and can follow the extending direction of third mounting groove removes.

5. The injection mold with secondary core pulling according to any one of claims 1 to 4, characterized in that:

the injection mold further comprises a second pressing block, a second inclined guide post, a second sliding block and a second insert, the second pressing block is located on one side, far away from the first pressing block, of the rear mold core, the second pressing block is connected with the second sliding block through the second inclined guide post, the moving direction of the second sliding block is intersected with the moving direction of the first sliding block, the second insert is arranged on the second sliding block, and one end of the second insert extends into the product forming cavity.

6. The injection mold with the secondary core pulling function according to claim 5, characterized in that:

the end part of the second insert is provided with a clamping groove, the end part of the first insert is provided with a protruding part, and the protruding part is connected with the clamping groove.