CN211363341U - Become track mechanism of loosing core - Google Patents
Become track mechanism of loosing core Download PDFInfo
- Publication number
- CN211363341U CN211363341U CN201922236782.XU CN201922236782U CN211363341U CN 211363341 U CN211363341 U CN 211363341U CN 201922236782 U CN201922236782 U CN 201922236782U CN 211363341 U CN211363341 U CN 211363341U
- Authority
- CN
- China
- Prior art keywords
- ejector pin
- oil cylinder
- sliding blocks
- track
- core
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- 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.)
- Expired - Fee Related
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 abstract description 6
- 235000000396 iron Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of injection molding dies, in particular to a variable-track core pulling mechanism, which comprises a bottom plate, wherein two pieces of square iron are arranged on the bottom plate and are fixed by bolts, the upper ends of the two pieces of square iron are fixedly connected with a rear template through bolts, the rear template is fixedly connected with a rear mold core through bolts, an ejector pin bottom plate and an ejector pin panel are arranged between the two pieces of square iron, the ejector pin bottom plate and the ejector pin panel are fixed by bolts, an ejector pin is fixed between the two ejector pin plates, and the upper end of the ejector pin penetrates through the rear template and the rear mold core until the bottom of a product; inlay two sliders in the back mould benevolence, two sliders can become the free motion state in the arc track of back mould benevolence simultaneously, the utility model discloses successful change the linear motion of hydro-cylinder piston into variable orbit motion, solved the problem of the product drawing of patterns difficulty that non-linear orbit can the drawing of patterns.
Description
Technical Field
The utility model relates to an injection moulding mould technical field especially relates to a become track mechanism of loosing core.
Background
With the continuous rising of the injection molding industry and the continuous development of the industrial manufacturing industry, people have more and more structural requirements on plastic products, and the functions of the plastic products are more and more diversified, wherein the plastic products comprise products with deep bent inner holes, because the demolding track of a product cavity is arc-shaped, the demolding is not feasible according to the current normal linear track, aiming at the products with a special structure, an orbit-changing core-pulling mechanism is invented, the arc-shaped demolding track can be converted into the linear demolding track to be completed by using the technical structure, namely, the linear motion track provided by an oil cylinder can be converted into the arc-shaped motion track by the orbit-changing core-pulling mechanism, and finally the arc-shaped products can be successfully demolded.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a variable-track core-pulling mechanism.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
designing a variable-track core pulling mechanism, which comprises a base plate, wherein two pieces of square iron are arranged on the base plate and fixed by bolts, the upper ends of the two pieces of square iron are fixedly connected with a rear template by bolts, the rear template is fixedly connected with a rear mold core by bolts, an ejector pin base plate and an ejector pin panel are arranged between the two pieces of square iron, the ejector pin base plate and the ejector pin panel are fixed by bolts, an ejector pin is fixed between the two ejector pin plates, and the upper end of the ejector pin penetrates through the rear template and the rear mold core until reaching the bottom of a product; the rear die core is embedded with two sliding blocks, the two sliding blocks can move freely in an arc track of the rear die core, the two sliding blocks are mirror images, the shapes of the two sliding blocks are the same, the front end parts of the two sliding blocks are inserted into hole-shaped die cavities at two ends of a product, the rear parts of the two sliding blocks are connected with a connecting rod through a circular pin, the other end of the connecting rod is connected with an oil cylinder insert through a circular pin, as can be seen from the figure, the connecting rod connected with the two sliding blocks is simultaneously connected with the same oil cylinder insert, and meanwhile, the circular pin plays a role in connection sliding fit and is not in fastening effect; the oil cylinder insert is connected with the oil cylinder through a bolt, the oil cylinder is fastened on the oil cylinder seat through the bolt, meanwhile, the oil cylinder seat is fastened on one side of the rear template through the bolt, and the sliding block can be driven to do variable track motion in the arc-shaped cavity of the mold core under the action of the linear motion of the piston of the oil cylinder.
Preferably, the number of the sliding blocks is two.
Preferably, the two pieces of the slider are mirror images of each other in shape, i.e. have the same volume.
Preferably, the moving tracks of the two sliding blocks are non-linear tracks, namely arc tracks.
Preferably, the two sliding blocks are driven to move by the same oil cylinder, namely the number of the oil cylinders is one.
The utility model provides a pair of become track mechanism of loosing core, beneficial effect lies in: the smooth demoulding of the deep bending cavity of the arc-shaped product is completed by utilizing the set slide block shape and the slide block running track, the product with the special shape can be stably and smoothly produced in batch, the requirements of various industries on the product with the special shape are met, and the immeasurable contribution is made to industrial development and human progress.
Drawings
Fig. 1 is a schematic top view of a variable track core pulling mechanism according to the present invention;
fig. 2 is a side view of a variable track core pulling mechanism provided by the present invention;
fig. 3 is a schematic structural view of the variable track core pulling mechanism according to the present invention after the sliding block is withdrawn;
fig. 4 is the schematic structural diagram of the variable track core pulling mechanism after the product is ejected out.
In the figure: the ejector pin mold comprises a bottom plate 1, square iron 2, an ejector pin bottom plate 3, an ejector pin panel 4, an oil cylinder 5, an oil cylinder seat 6, a rear mold core 7, an ejector pin 8, a product 9, a sliding block 10, a connecting rod 11, an oil cylinder insert 12, a round pin 13 and a rear mold plate 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, the ejector pin structure comprises a bottom plate 1, wherein two square irons 2 are arranged on the bottom plate 1 and fixed by bolts, the upper ends of the two square irons 2 are fixedly connected with a rear template 14 by bolts, the rear template 14 is fixedly connected with a rear mold insert 7 by bolts, an ejector pin bottom plate 3 and an ejector pin panel 4 are arranged between the two square irons 2, the ejector pin bottom plate 3 and the ejector pin panel 4 are fixed by bolts, an ejector pin 8 is fixed between the two ejector pin plates, and the upper end of the ejector pin 8 penetrates through the rear template 14 and the rear mold insert 7 until reaching the bottom of a product 9; the rear die core 7 is embedded with two sliding blocks 10, the two sliding blocks 10 can move freely in an arc-shaped track of the rear die core 7, the two sliding blocks 10 are mirror images, the shapes of the two sliding blocks 10 are the same, the front end parts of the two sliding blocks 10 are inserted into hole-shaped cavities at two ends of a product 9, the rear parts of the two sliding blocks 10 are connected with a connecting rod 11 through a circular pin 13, the other end of the connecting rod 11 is connected with an oil cylinder insert 12 through the circular pin, as can be seen from the figure, the connecting rods connected with the two sliding blocks 10 are simultaneously connected on the same oil cylinder insert 12, and the circular pin 13 plays a role in connection sliding fit and is not fastened; the oil cylinder insert 12 is connected with the oil cylinder 5 through a bolt, the oil cylinder 5 is fastened on the oil cylinder base 6 through a bolt, and the oil cylinder base is fastened on one side of the rear template 14 through a bolt, so that the connecting rod 11 can drive the sliding block 10 to make variable track motion in the arc-shaped cavity of the die core 7 under the action of the linear piston motion of the oil cylinder 5.
The working principle is as follows: after the product is injection molded and opened, as shown in fig. 1 and 2, the product 9 is left on the upper surface of the rear mold core 7, the front ends of the two sliding blocks 10 are embedded in the arc-shaped cavities at the two sides of the product 9, at this time, the oil cylinder 5 starts to move as a piston under the action of oil pressure, the oil cylinder insert 12 starts to be pulled outwards, because the oil cylinder insert 12 is connected with the two connecting rods 11 through the circular pins 13, and the other ends of the two connecting rods 11 are connected with the rear parts of the sliding blocks 10 through the circular pins 13, under the action of the backward pulling force of the oil cylinder 5, the two sliding blocks 10 positioned in the rear mold core 7 can move under the pulling force of the two connecting rods 11, as the set sliding blocks 10 are arc-shaped, the track in the rear mold core 7 is also arc-shaped, obviously, the two sliding blocks 10 can do arc-shaped movement along the arc-shaped track set in the rear mold core 7 under the, at the moment, the piston of the oil cylinder 5 stops moving, and the variable track core pulling is completed;
after the sliding blocks 10 on the two sides of the arc-shaped product 9 complete demoulding, the ejection system starts to operate, an ejector rod of the injection molding machine starts to apply ejection force to the ejector pin bottom plate 3, the ejector pin 8 is fixed between the ejector pin panel 4 and the ejector pin bottom plate 3, the ejector pin 8 starts to penetrate through the rear template 14 and the rear mold core 7, and the ejection force is applied to the bottom of the product 9, as shown in the figure four, until the whole product 9 completely ejects the rear mold core 7, a new plastic product is born, then the ejector pin 8 starts to return under the external force of the injection molding machine, until the ejector pin completely returns to the original position, then the oil cylinder 5 starts to do piston motion again, and pushes the oil cylinder insert 12 to move inwards, and according to the same principle, the sliding blocks 10 start to move towards the inner mold cavities on the two sides of the product 9 under the driving force of the connecting rod 11 of the oil cylinder, finally, mold closing is started, next injection molding is started, and a cycle is completed.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The variable-track core pulling mechanism comprises a base plate (1) and is characterized in that two pieces of square iron (2) are arranged on the base plate (1) and fixed through bolts, the upper ends of the two pieces of square iron (2) are fixedly connected with a rear template (14) through bolts, the rear template (14) is fixedly connected with a rear mold core (7) through bolts, an ejector pin base plate (3) and an ejector pin panel (4) are placed between the two pieces of square iron (2), the ejector pin base plate (3) and the ejector pin panel (4) are fixed through bolts, an ejector pin (8) is fixed between the two ejector pin plates, and the upper end of the ejector pin (8) penetrates through the rear template (14) and the rear mold core (7) until the bottom of a product (9); the rear die core (7) is embedded with two sliding blocks (10), the two sliding blocks (10) can move freely in an arc-shaped track of the rear die core (7), the shapes of the two sliding blocks (10) are mirror images, the volumes of the two sliding blocks are the same, the front end parts of the two sliding blocks (10) are inserted into hole-shaped cavities at two ends of a product (9), the rear parts of the two sliding blocks (10) are connected with a connecting rod (11) through a circular pin (13), the other end of the connecting rod (11) is connected with an oil cylinder insert (12) through a circular pin, the connecting rods connected with the two sliding blocks (10) are connected with the same oil cylinder insert (12) at the same time, and the circular pin (13) plays a role in connecting and sliding fit and is not a fastening effect; the oil cylinder insert (12) is connected with the oil cylinder (5) through a bolt, the oil cylinder (5) is fastened on the oil cylinder base (6) through a bolt, meanwhile, the oil cylinder base is fastened on one side of the rear template (14) through a bolt, and under the action of linear movement of the piston of the oil cylinder (5), the sliding block (10) can be driven to do variable orbital movement in the arc-shaped cavity of the mold core (7).
2. A track-changing core-pulling mechanism according to claim 1, wherein the number of said sliders (10) is two.
3. A track-changing core-pulling mechanism according to claim 1, wherein the two said slides (10) are mirror images of each other in shape, i.e. have the same volume.
4. The variable-track core-pulling mechanism according to claim 1, wherein the two sliding blocks (10) have a non-linear track, namely an arc track.
5. The variable-track core-pulling mechanism is characterized in that the same oil cylinder (5) is used for driving the two sliding blocks (10) to move, namely the number of the oil cylinders (5) is one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236782.XU CN211363341U (en) | 2019-12-13 | 2019-12-13 | Become track mechanism of loosing core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236782.XU CN211363341U (en) | 2019-12-13 | 2019-12-13 | Become track mechanism of loosing core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211363341U true CN211363341U (en) | 2020-08-28 |
Family
ID=72167043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922236782.XU Expired - Fee Related CN211363341U (en) | 2019-12-13 | 2019-12-13 | Become track mechanism of loosing core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211363341U (en) |
-
2019
- 2019-12-13 CN CN201922236782.XU patent/CN211363341U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200828 |