CN210389980U - Injection mold - Google Patents
Injection mold Download PDFInfo
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- CN210389980U CN210389980U CN201921229593.3U CN201921229593U CN210389980U CN 210389980 U CN210389980 U CN 210389980U CN 201921229593 U CN201921229593 U CN 201921229593U CN 210389980 U CN210389980 U CN 210389980U
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Abstract
The utility model is suitable for the technical field of injection molding, and provides an injection mold, which comprises a movable mold, a fixed mold, a mold cavity arranged between the movable mold and the fixed mold, and an injection mechanism connected with an injection machine; the injection mechanism comprises a nozzle arranged at the top of the die cavity, the nozzle is provided with a glue outlet for injecting plastic into the die cavity, and one side of the glue outlet is provided with a blocking part for blocking the plastic. The utility model discloses an injection mold goes out to glue mouthful one side through the nozzle at injection mechanism and sets up the stop part, go out to glue when mouthful injecting the plastic into the die cavity, go out to glue mouthful can only follow other directions that remove the stop part and inject the plastic into the die cavity, the plastic that enters into the die cavity assembles the formation joint line from other positions all toward the corresponding position of stop part after flowing for the joint line rigidity of product, product appearance uniformity is good, and avoid openly forming the joint line at the product, make the joint line not influence product appearance.
Description
Technical Field
The utility model relates to an injection moulding technical field, concretely relates to injection mold.
Background
Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, precise product size, capability of forming products with complex shapes, suitability for mass production of products with complex shapes and high production efficiency. The injection molding technology is that granular or powdery polymer raw materials are added into a polymer material cylinder, the mixture is plasticized under the action of heating or mechanical shearing, and finally, the mixture is cooled and solidified into a plastic product in a mold cavity of a hot-melt plastic injection mold.
In the prior art, when an injection mold is used for injection molding of a product, plastic is generally injected into a mold cavity through a nozzle of an injection mechanism, the plastic is injected into the mold cavity from the periphery of a glue outlet of the nozzle under the pressure action of the plastic in the nozzle, the plastic flows into the mold cavity at four places, the plastic converging position is not fixed, the position of a product forming a bonding line is not fixed, the consistency of the appearance of the product is poor, the bonding line is easily formed on the front surface of the product, and the appearance of the product is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an injection mold aims at solving the bonding line position that prior art's injection mold formed when having the shaping product unfixed, and product appearance uniformity is poor, and easily openly forms the bonding line at the product to influence the problem of product appearance.
The utility model is realized in such a way that the injection mold comprises a movable mold, a fixed mold, a mold cavity arranged between the movable mold and the fixed mold, and an injection mechanism connected with an injection machine;
the injection mechanism comprises a nozzle arranged at the top of the mold cavity, the nozzle is provided with a glue outlet for injecting plastic into the mold cavity, and one side of the glue outlet is provided with a blocking part for blocking the plastic.
Preferably, the injection mechanism comprises a glue inlet nozzle arranged on the movable mold and a pouring tube connected with the nozzle and the glue inlet nozzle, and the nozzle is sleeved with the pouring tube.
Preferably, the mold cavity is provided with a plurality of mold cavities, the injection mechanism is provided with a plurality of nozzles, each nozzle is connected with the glue inlet nozzle through one pouring tube, and each nozzle is arranged at the top of one mold cavity.
Preferably, the injection mechanism further comprises a reinforcing support member, and the pour tube is fixed to the reinforcing support member.
Preferably, the blocking portion is integrally formed on the nozzle.
Preferably, one end of the nozzle is concave inwards to form a concave part, the inner wall of the concave part is a smooth curved surface, and the glue outlet is formed in the bottom of the concave part.
Preferably, the periphery of the recessed portion is provided with a tapered surface, and the blocking portion is arranged on the tapered surface and is arranged in a protruding manner relative to the tapered surface.
The utility model provides an injection mold is through setting up the stop part that blocks the plastic in nozzle glue outlet one side of injection mechanism, when glue outlet injects the plastic into the die cavity, because stop part blocks that the plastic is spout from one side at stop part place, make glue outlet can only inject the plastic into the die cavity from other directions of detaching stop part, the plastic that enters into the die cavity flows from other positions and all assembles the formation joint line towards the corresponding position of stop part, make the joint line position of product fixed, the product outward appearance uniformity is good; and before injection molding, the blocking part of the nozzle is correspondingly placed at the position of the die cavity corresponding to the back of the molded product, so that the joint line is formed at the back of the product, the joint line is prevented from being formed at the front of the product, and the appearance of the product is not influenced by the joint line.
Drawings
Fig. 1 is a three-dimensional structure diagram of an injection mold provided by an embodiment of the present invention;
fig. 2 is an exploded perspective view of an injection mold according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure view of an injection mold provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a part of a structure of an injection mold provided by an embodiment of the present invention;
fig. 5 is a three-dimensional structure diagram of an injection mechanism in an injection mold according to an embodiment of the present invention;
fig. 6 is a three-dimensional structure diagram of a nozzle in an injection mold provided by the embodiment of the present invention;
fig. 7 is a schematic sectional structure view of a nozzle in an injection mold according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and 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.
The embodiment of the utility model provides an injection mold is through setting up the stop part that blocks the plastic in nozzle glue outlet one side of injection mechanism, when glue outlet injects the plastic into the die cavity, because stop part blocks that the plastic is spout from one side at stop part place, make glue outlet can only inject the plastic into the die cavity from other directions of detaching stop part, the plastic that enters into the die cavity flows from other positions and all assembles the junction line towards the corresponding position of stop part, make the junction line position of product fixed, the product outward appearance uniformity is good; and before injection molding, the blocking part of the nozzle is correspondingly placed at the position of the die cavity corresponding to the back of the molded product, so that the joint line is formed at the back of the product, the joint line is prevented from being formed at the front of the product, and the appearance of the product is not influenced by the joint line.
Referring to fig. 1 to 6, an injection mold according to an embodiment of the present invention includes a movable mold 1, a fixed mold 2, a mold cavity 3 disposed between the movable mold 1 and the fixed mold 2, and an injection mechanism 4 connected to an injection machine (not shown); the injection mechanism 4 includes a nozzle 41 disposed at the top of the mold cavity 3, the nozzle 41 is provided with a glue outlet 411 for injecting plastic into the mold cavity 3, and a blocking portion 412 for blocking the plastic is disposed at one side of the glue outlet 411.
The utility model discloses injection mold sets up the blocking part 412 that blocks the plastic through the mouth 411 one side that goes out of nozzle 41 at injection mechanism 4, go out when gluing mouthful 411 injects the plastic into die cavity 3, because blocking part 412 blocks one side blowout at plastic from blocking part 412 place, make out glue mouthful 411 can only follow other directions except that blocking part 412 and inject the plastic into die cavity 3, the plastic that gets into in the die cavity 3 all assembles the formation joint line toward the corresponding position of blocking part 412 from other positions at last, make the joint line rigidity of product, the appearance uniformity is good, and, when moulding plastics with man-hour, place the position at the corresponding shaping product back of die cavity 3 with the blocking part 412 correspondence of nozzle 41, thereby make the joint line form at the back of product, do not influence product appearance.
The embodiment of the utility model provides an in, injection mold includes bottom plate 5 and is fixed in solid fixed ring 6 on bottom plate 5, and cover half 2 sets up on solid fixed ring 6. The injection mold further comprises a first fixing plate 7 fixedly connected with the injection machine and a second fixing plate 8 fixedly connected with the first fixing plate 7 and the movable mold 1, and the injection mechanism 4 is integrally fixed with the first fixing plate 7, the second fixing plate 8 and the movable mold 1.
The embodiment of the utility model provides an in, injection mold still includes the drive arrangement (not shown) of being connected with the drive of movable mould 1, and drive arrangement can be cylinder, pneumatic cylinder or other actuating mechanism. When a product is injection molded, the movable die 1 and the fixed die 2 are driven to cover through a driving device; when the product molding is finished, the movable die 1 is driven to be separated from the fixed die 2 through the driving device, and the molded product is convenient to take out.
In the embodiment of the present invention, the cavity 3 is formed by covering the first mold body 31 and the second mold body 32, which are disposed on the fixed mold 2, with each other. When a product is injection molded, the first mold body 31 and the second mold body 32 cover each other to form a mold cavity 3 for molding the product; after the molded product is completed, the first and second mold bodies 31 and 32 may be separated to facilitate the removal of the product.
When a product is injection molded, an insert 20 for molding the product is placed in the mold cavity 3, the movable mold 1 and the fixed mold 2 are driven to cover by a driving device, the nozzle 41 of the injection mechanism 4 and the movable mold 1 move synchronously, the nozzle 41 moves to the top of the mold cavity 3, thermoplastic glue is injected into the mold cavity 3 through the nozzle 41, and the thermoplastic glue cools and molds the product at the periphery of the insert 20. Because the blocking part 412 blocks the thermoplastic resin from being sprayed out from one side where the blocking part 412 is located, the plastic in the glue outlet 411 can only inject the thermoplastic resin into the mold cavity 3 from other directions except the blocking part 412, the plastic entering the mold cavity 3 flows in the mold cavity 3 and finally converges to the corresponding position of the blocking part 412 from other positions to form a bonding line, so that the bonding line position of the product formed by processing each time is located at the position corresponding to the blocking part 412, the bonding line position of the product is fixed, and the appearance consistency is good; furthermore, during injection molding, the blocking portion 412 of the nozzle 41 is first placed at a position corresponding to the back surface of the molded product in the cavity 3, so that the bonding line is formed on the back surface of the product without affecting the appearance of the product.
The embodiment of the utility model provides an in, be equipped with a plurality of guide pillar 21 on the cover half 2, movable mould 1, first fixed plate 7 and second fixed plate 8 be equipped with respectively with guide pillar 21 complex through-hole 10, guide pillar 21 passes through-hole 10 on movable mould 1, first fixed plate 7 and the second fixed plate 8 simultaneously, when movable mould 1 closed or separated with cover half 2 lid, this movable mould 1 of drive arrangement drive is steady along the motion of guide pillar 21 together with first fixed plate 7, second fixed plate 8.
In the embodiment of the present invention, the injection mechanism 4 includes the glue inlet nozzle 42 and the pouring tube 43 connecting the nozzle 41 and the glue inlet nozzle 42 which are disposed on the movable mold 1, and the nozzle 41 is sleeved with the pouring tube 43. The injection machine molds the product by injecting the thermoplastic resin from the resin inlet nozzle 42, the thermoplastic resin flows to the nozzle 41 through the pouring tube 43, and the thermoplastic resin is injected into the mold cavity 3 through the resin outlet 411 of the nozzle 41. Wherein, because nozzle 41 cup joints with pouring tube 43, be convenient for adjust rotatory nozzle 41 with the position of adjustment stopper 412, ensure that the joint line is located the product back on the fashioned product to do not influence the product outward appearance.
In the embodiment of the present invention, the glue inlet nozzle 42 is fixed on the first fixing plate 7 and connected to the injection machine, the pouring tube 43 runs through the second fixing plate 8 and the movable mold 1, and the nozzle 41 is sleeved at the end of the pouring tube 43 and fixed on the movable mold 1.
As an embodiment of the utility model, the die cavity 3 is equipped with a plurality ofly, and injection mechanism 4 is equipped with a plurality of nozzles 41, and every nozzle 41 is connected with into gluey mouth 42 through a pouring tube 43, and every nozzle 41 sets up the top at a die cavity 3 for but a plurality of products of this injection mold simultaneous moulding have improved the machining efficiency of product.
As an embodiment of the present invention, the injection mechanism 4 further includes a reinforcing support member 44, and the pouring tube 43 is fixed on the reinforcing support member 44, so that the plurality of pouring tubes 43 are connected to each other through the reinforcing support member 44, and the structural strength of the pouring tube 42 is effectively improved.
Referring to fig. 7 in combination, as an embodiment of the present invention, the blocking portion 412 is integrally formed on the nozzle 411, which facilitates the processing of the blocking portion 412 and enables the blocking portion 412 to be firmly fixed on the nozzle 411. The shape of the blocking portion 412 is not limited.
As an embodiment of the utility model, the one end indent of nozzle 41 forms a depressed part 413, and the inner wall of depressed part 413 is smooth curved surface, goes out jiao kou 411 and locates the bottom of depressed part 413, and depressed part 413 plays the effect of assembling the plastic, makes the plastic that goes out jiao kou 411 outflow spout to die cavity 3 fast along the inner wall of depressed part 413.
As an embodiment of the present invention, the periphery of the concave portion 413 is provided with a tapered surface 414, and the blocking portion 412 is disposed on the tapered surface 414 and is protruded from the tapered surface 414. The tapered surface 414 further functions to collect the plastic, and increases the plastic injection pressure flowing out from the glue outlet 411, so that the plastic is rapidly injected into the mold cavity 3 through the tapered surface.
The embodiment of the utility model provides an injection mold sets up the stop part that blocks the plastic through the mouth one side that goes out of nozzle in injection mechanism, when going out the mouth and injecting the plastic into the die cavity, because the stop part blocks that the plastic is spout from one side that the stop part is located, make it can only inject the plastic into the die cavity from other directions that remove the stop part to go out the mouth, the plastic that enters into the die cavity all assembles the joint line towards the corresponding position of stop part after flowing from other positions, make the joint line position of product fixed, the product outward appearance uniformity is good; and before injection molding, the blocking part of the nozzle is correspondingly placed at the position of the die cavity corresponding to the back surface of the molded product, so that the joint line is formed on the back surface of the product, and the appearance of the product is not influenced by the joint line.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. An injection mold is characterized by comprising a movable mold, a fixed mold, a mold cavity arranged between the movable mold and the fixed mold, and an injection mechanism connected with an injection machine;
the injection mechanism comprises a nozzle arranged at the top of the mold cavity, the nozzle is provided with a glue outlet for injecting plastic into the mold cavity, and one side of the glue outlet is provided with a blocking part for blocking the plastic.
2. The injection mold of claim 1, wherein the injection mechanism comprises a glue inlet nozzle disposed on the movable mold and a pouring tube connecting the nozzle and the glue inlet nozzle, the nozzle being sleeved with the pouring tube.
3. An injection mold according to claim 2, wherein said mold cavity is provided in plurality, said injection mechanism is provided with a plurality of said nozzles, each of said nozzles is connected to said glue inlet nozzle through one of said pour tubes, and each of said nozzles is disposed at the top of one of said mold cavities.
4. An injection mold according to claim 3, wherein the injection mechanism further comprises a reinforcing support to which the pour tube is secured.
5. An injection mold according to claim 1, wherein the blocking portion is integrally formed on the nozzle.
6. The injection mold of claim 1, wherein one end of the nozzle is recessed to form a recess, the inner wall of the recess is a smooth curved surface, and the glue outlet is disposed at the bottom of the recess.
7. An injection mold as claimed in claim 6, wherein the recess is provided with a tapered surface at its periphery, and the stop portion is provided on the tapered surface and is raised relative to the tapered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921229593.3U CN210389980U (en) | 2019-07-30 | 2019-07-30 | Injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921229593.3U CN210389980U (en) | 2019-07-30 | 2019-07-30 | Injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210389980U true CN210389980U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921229593.3U Active CN210389980U (en) | 2019-07-30 | 2019-07-30 | Injection mold |
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| CN (1) | CN210389980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474600A (en) * | 2021-12-30 | 2022-05-13 | 上海通领汽车科技股份有限公司 | In-mold insert injection mold |
-
2019
- 2019-07-30 CN CN201921229593.3U patent/CN210389980U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474600A (en) * | 2021-12-30 | 2022-05-13 | 上海通领汽车科技股份有限公司 | In-mold insert injection mold |
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