CN207874726U - A kind of ABS plastic mold - Google Patents

Abstract

The utility model discloses an ABS plastic mould, which comprises a moving mold group, a fixed mold group and a cavity group. rod, sprue pull rod, reset rod, positioning guide post and movable template; the fixed mold group includes a positioning ring, gate, fixed mold seat plate, fixed template and limit guide post; The group includes a fixed punch, a movable die, a movable punch, a main flow channel, a core and a pusher plate; when the first stage of the mold is ejected, the fixed punch is separated from the movable die, and when the second stage of the mold is ejected , the movable die is separated from the movable die, when the third stage of the mold is ejected, the push rod pushes the plastic part out of the mold, and the ejection process is completed in one stroke. The fixed punch, the movable die, and the movable punch in the utility model can cooperate with each other to form the required core, which improves the applicability of the mold, and at the same time, each cavity can be separated for replacement and maintenance, which reduces the cost of mold maintenance. Improve the service life of the mold.

Description

An ABS plastic mold

technical field

The utility model relates to the technical field of molds, in particular to an ABS plastic mold.

Background technique

ABS plastic is a terpolymer of acrylonitrile (A), butadiene (B) and styrene (S). The relative content of the three monomers can be changed arbitrarily to make various resins. ABS has the common properties of three components, A makes it chemically resistant, heat-resistant, and has a certain surface hardness, B makes it have high elasticity and toughness, S makes it have the processing and molding characteristics of thermoplastics and improves electrical properties . Therefore, ABS plastic is a "tough, hard and rigid" material with easy-to-obtain raw materials, good comprehensive performance, low price and wide application. ABS plastics are widely used in machinery, electrical, textile, automobile, aircraft, ship and other manufacturing industries and chemical industry.

At present, ABS plastic molds on the market generally use injection molds, and there are two main types of them, namely, two-plate injection molds and three-plate injection molds. Among them, the two-plate injection molds have simple structure and low manufacturing cost, and are suitable for most of the time. Production needs. However, for some plastic parts with tube shape, due to the limitation of the structure of the two-plate injection mold, if the mold cavity of the tube shape is set in the punch, the inside of the tube wall of the molded plastic part can only be smooth or smooth. It is difficult to make some plastic parts with other processing requirements in the pipe wall at one time for the layered layer that is easy to demould; The die is easy to become a consumable part. In the case of the existing structural mold, the cost of replacement and maintenance of the die is very high.

Utility model content

The technical problem to be solved by the utility model is: the utility model provides an ABS plastic mold, adopts the structure of separating the mold cavity, and divides the mold cavity into three parts, so that the mold cavities can cooperate with each other to form the required core while each The mold cavities can be separated for replacement and maintenance.

The solution of the utility model to solve its technical problem is: a kind of ABS plastic mould, comprises movable mold group, fixed mold group and cavity group, and described movable mold group comprises movable mold base plate, support column, push plate, Push rod fixing plate, push rod, main channel pulling rod, reset rod, positioning guide column and movable formwork; two support columns are fixed on the movable mold base plate, and the distance between the two support columns can be A push plate and a push rod fixing plate are slidably provided, and the push rod fixing plate is fixedly arranged on the push plate, and the push rod, the main channel pulling rod and the reset rod are fixed in the push rod fixing plate, and the The movable template is fixed on the two support columns, and the positioning guide column is fixed in the movable template; the fixed mold group includes a positioning ring, a gate, a fixed mold seat plate, a fixed template and a limit guide column ; The positioning ring is set on the top of the fixed mold seat plate, the gate is provided in the described positioning ring, the described limit guide post is fixed in the fixed mold seat plate, and the fixed mold seat plate is fixedly installed There is a fixed template; the cavity group includes a fixed punch, a movable die, a movable punch, a sprue, a core and a pusher plate; the sprue is set under the gate, and the two sides are connected with a mold core, the fixed punch is fixed in the fixed template, the movable punch is fixed in the movable template, the pusher plate is arranged between the movable template and the fixed template, and the movable die It is arranged on the movable punch and is provided with a through hole of the movable die matched with the fixed punch, and the movable die is fixedly arranged on the pusher plate.

Preferably, the side of the fixed template is provided with a water inlet, the side of the movable template is provided with a water outlet, and at least one cooling water channel is provided in the cavity group, and the cooling water channel is connected with the water inlet and outlet. The water port is connected.

Preferably, a stopper is provided between the movable die base plate and the push plate, and the stopper is fixed on the movable die base plate.

Preferably, a return spring is provided on the push rod.

Preferably, the positioning guide column passes through the movable template, the pusher plate and the fixed template; the push rod and the main channel pulling rod pass through the push rod fixed plate, the movable template and the movable punch; The reset rod passes through the push rod fixed plate, the movable template and the pusher plate; the position-limiting guide post passes through the seat plate of the fixed mold, the fixed formwork, the pusher plate and the movable template, and the end of the position-limiting guide post is set There is a limit ring, and the limit ring can move in the movable template but stop at the push piece plate.

Further, the positioning guide posts, push rods, sprue pull rods, limit guide posts and stop rings at the ends of the stop guide posts are matched with the through holes on the respective connected components.

The beneficial effects of the utility model are: the utility model divides the mold cavity into a fixed punch, a movable concave mold and a movable punch by adopting the structure of separating the cavity. When the first stage of the mold is ejected, the fixed punch and the movable punch Mold separation, when the second stage of the mold is ejected, the movable die is separated from the movable mold, when the third stage of the mold is ejected, the push rod pushes the plastic part out of the mold, and the ejection process is completed in one stroke. Each mold cavity of the utility model can cooperate with each other to form a required mold core, which improves the applicability of the mould. At the same time, each mold cavity can be separated for replacement and maintenance, which reduces the maintenance cost of the mold and improves the service life of the mold.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following will briefly describe the accompanying drawings that are used in the description of the embodiments. Apparently, the drawings described are only some embodiments of the utility model, not all embodiments, and those skilled in the art can also obtain other designs and drawings according to these drawings without creative work.

Fig. 1 is the structural representation of the utility model.

Explanation of Reference Signs: 1. Moving mold seat plate; 11 Stopper; 12. Ejection hole; 2. Support column; 3. Push plate; 4. Push rod fixing plate; 41. Push rod; 42. Main channel pulling material Rod; 43. Reset rod; 44. Return spring; 5. Moving template; 51. Positioning guide post; 52. Water outlet; 6. Fixed mold seat plate; Punch; 72. Water inlet; 8. Locating ring; 81. Gate; 9. Core; 91. Moving punch; 92. Moving die; 93. Main channel;

Detailed ways

The idea, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model. Apparently, the described embodiments are only some of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without paying creative efforts, All belong to the protection scope of the utility model. In addition, all the connection/connection relationships mentioned in this article do not refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the invention can be combined interactively on the premise of not conflicting with each other. Finally, it should be noted that terms such as "upper", "lower", "inside" and "between" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the present utility model. The scope of implementation and the change or adjustment of its relative relationship shall also be regarded as the applicable scope of the utility model without substantive changes in the technical content.

With reference to Fig. 1, a kind of ABS plastic mould, comprises movable mold group, fixed mold group and cavity group, described movable mold group comprises movable mold base plate 1, support column 2, push plate 3, push rod fixed plate 4 , push rod 41, sprue pull rod 42, reset rod 43, positioning guide column 51 and movable template 5; described movable mold base plate 1 is fixedly provided with two supporting columns 2, and described two supporting columns 2 are slidably provided with a push plate 3 and a push rod fixing plate 4, the push plate 3 is fixed with a push rod fixing plate 4, the push rod 41, the main channel pulling rod 42 and the reset rod 43 is fixed in the push rod fixing plate 4, the two supporting columns 2 are fixed with a movable template 5, and the positioning guide column 51 is fixed in the movable template 5; the fixed module includes a positioning ring 8. The gate 81, the fixed mold seat plate 6, the fixed mold plate 7 and the limit guide post 61; the positioning ring 8 is arranged on the upper part of the fixed mold seat plate 6, and the gate 81 is arranged in the described positioning ring 8, The position-limiting guide post 61 is fixed in the fixed mold base plate 6, and the fixed mold plate 7 is fixedly arranged under the fixed mold base plate 6; the described cavity group includes a fixed punch 71, a movable die 92 , moving punch 91, sprue 93, core 9 and push piece plate 10; described sprue 93 is located under gate 81, and both sides are connected with core 9, and described fixed punch 71 is fixedly located at In the fixed template 7, the movable punch 91 is fixed in the movable template 5, the pusher plate 10 is arranged between the movable template 5 and the fixed template 7, and the movable die 92 is arranged on the movable punch. Die 91 is also provided with a movable die 92 through holes matched with fixed punch 71, and said movable die 92 is fixedly arranged on the push piece plate 10. The periphery of the positioning guide post 51 and the limit guide post 61 is provided with guide sleeves, and there are two cores 9, and two plastic parts can be produced each time demoulding.

Preferably, the side of the fixed template 7 is provided with a water inlet 72, the side of the movable template 5 is provided with a water outlet 52, and at least one cooling water channel is provided in the cavity group, and the cooling water channel is connected with the The water inlet 72 communicates with the water outlet 52 . The cooling water channel cools down the mold cavity, so that the plastic part can be cooled quickly, and the cooled plastic part can be attached to the movable punch 91 to immediately perform the demoulding process.

Preferably, a stopper 11 is provided between the movable die seat plate 1 and the push plate 3 , and the stop block 11 is fixed on the movable die seat plate 1 . The stopper 11 is mainly to prevent the push plate 3 from being squeezed with the movable mold seat plate 1 when the reset rod 43 drives the push rod fixed plate 4 and the push plate 3 to reset, thereby damaging the mold.

Preferably, the push rod 41 is provided with a return spring 44 . The return spring 44 stores energy during the mold ejection process, and when the ejection process is completed, the return spring 44 provides elastic force to push the push rod 41 to drive the push rod fixing plate 4 and the push plate 3 to perform initial reset.

Preferably, the positioning guide column 51 passes through the movable template 5, the pusher plate 10 and the fixed template 7; and movable punch 91; described reset rod 43 passes through push rod fixed plate 4, movable template 5 and push piece plate 10; The piece plate 10 and the movable template 5, the end of the limit guide post 61 is provided with a limit ring, and the limit ring can move in the movable template 5 but stops at the push piece plate 10.

Further, the positioning guide post 51, the push rod 41, the main channel pulling rod 42, the limit guide post 61 and the limit ring at the end of the limit guide post 61 are matched with the through holes on the respective connected components . When the ABS plastic mold of the utility model is clamped, under the positioning of the positioning guide post 51, each component can be assembled effectively, ensuring the service life and precision of the mold.

The working principle of this specific embodiment is: the screw pump drives the molten ABS plastic to inject the gate 81 through the nozzle, and the molten ABS plastic quickly fills the main channel 93 and the core 9 under a certain pressure. After the molten ABS plastic is cooled, the mold Start the demoulding. First, when the first stage is ejected, the fixed mold seat plate 6, the fixed template 7 and the fixed punch 71 are fixed, and other parts are separated from the fixed mold, and then when the second stage is ejected, the end of the limit guide post 61 Under the action of the limit ring, the pusher plate 10 is prevented from moving backwards. At the same time, because the pusher plate 10 is fixedly connected with the movable die 92, the movable die 92 is separated from the movable die, and finally ejected in the third stage. , the ejector rod passes through the ejection hole 12 to push the push plate 3 and the push rod fixing plate 4 to move towards the fixed mold direction, the push rod 41 gradually pushes the plastic part to demould, and the main channel pulling rod 42 pushes the main channel 93 to demould After the demoulding is completed, the mold starts to close the mold. First, the return spring 44 pushes the push rod 41 through elastic force to drive the push rod fixed plate 4 and the push plate 3 to perform a preliminary reset, and then when the movable template 5 touches the push plate 10, it drives the push plate 10 to move towards the fixed mold direction, and finally After the pusher plate 10 touched the fixed template 7, the reset rod 43 began to contact the fixed template 7. Due to the interaction force of the force, the reset rod 43 drives the push rod fixed plate 4 and the push plate 3 to reset.

After adopting the above-mentioned structure, the beneficial effects of this specific embodiment are: the utility model divides the traditional mold cavity into three parts: the fixed punch 71, the movable concave mold 92 and the movable punch 91. When the mold is ejected for the first time, The fixed punch 71 is separated from the movable mold. When the mold is ejected for the second time, the movable die 92 is separated from the movable mold. When the mold is ejected for the third time, the push rod 41 pushes the plastic part out of the mold. The ejection process takes place once. Completed during the trip. Each mold cavity of the utility model can cooperate with each other to form the required core 9, which improves the applicability of the mould. At the same time, each mold cavity can be separated for replacement and maintenance, which reduces the cost of maintenance molds and improves the service life of the mould. The utility model adopts a mold cavity structure with one mold and two cavities, which improves the production efficiency.

The preferred embodiments of the present utility model have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art can also make various equivalent modifications or modifications without violating the spirit of the present utility model. Replacement, these equivalent modifications or replacements are all included within the scope defined by the claims of the present application.

Claims (6)

1. a kind of ABS plastic mold, it is characterised in that including：

Dynamic model group comprising have Bottom clamp plate, support column, push plate, ejector pin retaining plate, push rod, sprue sprue puller, release link, Positioning guide column and moving platen；It is fixed with two support columns on the Bottom clamp plate, can be slided between described two support columns It is equipped with push plate and ejector pin retaining plate dynamicly, ejector pin retaining plate is fixed in the push plate, the push rod, sprue draw material Bar and release link are fixed in ejector pin retaining plate, and moving platen, the positioning guide column are fixed on described two support columns It is fixed in moving platen；

Cover half group comprising have locating ring, cast gate, top clamping plate, solid plate and limit guide post；The locating ring is located at cover half Seat board top, the locating ring is interior to be equipped with cast gate, and the limit guide post is fixed in top clamping plate, the top clamping plate Under be fixed with solid plate；

Cavity group comprising have and determine punch-pin, dynamic cavity plate, dynamic punch-pin, sprue, core and pusher plate；The sprue is located at Under cast gate, both sides are connected with core, and the punch-pin fixation of determining is located in solid plate, and dynamic punch-pin fixation is located at dynamic model In plate, the pusher plate is located between moving platen and solid plate, the dynamic cavity plate be located on dynamic punch-pin and equipped with it is surely convex The dynamic cavity plate through-hole that mould matches, dynamic cavity plate fixation are located in pusher plate.

2. a kind of ABS plastic mold according to claim 1, it is characterised in that：The solid plate side is equipped with water inlet Mouthful, the moving platen side is equipped with water outlet, and at least one cooling-water duct, the cooling water are equipped in the cavity group Channel is connected to water inlet with water outlet.

3. a kind of ABS plastic mold according to claim 1, it is characterised in that：Between the Bottom clamp plate and push plate Equipped with block, the block is fixed on Bottom clamp plate.

4. a kind of ABS plastic mold according to claim 1, it is characterised in that：The push rod is equipped with resetting spring.

5. a kind of ABS plastic mold according to claim 1, it is characterised in that：The positioning guide column pass through moving platen, Pusher plate and solid plate；The push rod and sprue sprue puller both passes through ejector pin retaining plate, moving platen and dynamic punch-pin；Described Release link passes through ejector pin retaining plate, moving platen and pusher plate；The limit guide post passes through top clamping plate, solid plate, pusher plate And moving platen, the limit guide post end are equipped with spacing collar, the spacing collar can be moved but be terminated in moving platen and push away Part plate.

6. a kind of ABS plastic mold according to claim 5, it is characterised in that：The positioning guide column, push rod, mainstream The spacing collar of road sprue puller, limit guide post and limit guide post end matches with the through-hole on the component respectively connecting.