Opening control device for multiple movable templates

Abstract

The utility model belongs to the field of injection mold control, and discloses a multi-movable template opening control device which comprises a base, a rake rod and a parting elastic tongue, the rake rod is arranged on the base, and the rake rod is coupled with a template power source; the parting elastic tongues are correspondingly arranged on the multiple movable mold plates, a plurality of sliding parting protrusions are formed on the rake rod, a first sliding plane and a parting plane are formed on the sliding parting protrusions, a plurality of fixed parting protrusions are formed on the base, and the fixed parting protrusions are correspondingly adjacent to the sliding parting protrusions. Each fixed parting bulge is provided with an extrusion plane and a second sliding plane which are adjacent to each other, the second sliding planes and the first sliding planes are coplanar, the extrusion planes are obliquely arranged, and the free ends of the parting elastic tongues are simultaneously inserted between two adjacent sliding parting bulges and between two adjacent fixed parting bulges; the maximum value of all the parting intervals is smaller than the minimum value of all the extrusion intervals, and the parting intervals have a plurality of different interval values; the plurality of extrusion intervals have a plurality of different interval values.

Description

Technical Field

[0001] The utility model belongs to the field of injection mold control, and particularly relates to a control device for opening a multi-movable template. Background Art

[0002] In the process of manufacturing complex injection products, we often need to use an injection mold with multiple movable templates, and make the complex injection products qualified and of high quality by performing multiple partings, that is, opening multiple parting surfaces in a predetermined order.

[0003] At present, the opening mechanism of the movable template can only perform 1 or 2 parting operations. Therefore, if more than 3 parting operations are required, that is, the number of movable templates is more than 3, it is necessary to adopt a combination of multiple opening mechanisms.

[0004] However, such an opening mechanism makes the overall structure of the mold bloated, the cost remains high, it is not convenient for installation and debugging, and it is difficult to have an optimal combined layout for multiple opening mechanisms. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a control device for opening a multi-movable template, which can realize the opening and closing of multiple movable templates in the injection mold as needed without additional devices, thus streamlining the overall structure of the injection mold, reducing the cost, and being convenient for installation and debugging.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A kind of multi-moving template opening control device is arranged in the mold blank of an injection mold. The injection mold includes a template power source driven linearly and a plurality of moving templates arranged along the opening and closing direction. Based on the opening and closing direction, a parting direction and a blocking direction are defined, and the opening and closing direction, the parting direction and the blocking direction are perpendicular to each other. It is characterized in that it includes: a base fixed on the fixed template; a rake rod arranged on the base along the opening and closing direction. The rake rod has a power coupling end coupled with the template power source, and the power coupling end is far away from the base along the opening and closing direction; a plurality of parting tongues are correspondingly arranged on the plurality of moving templates along the opening and closing direction. Among them, a plurality of sliding parting protrusions are formed on the rake rod along the opening and closing direction. The sliding parting protrusion is formed with a first sliding plane and a parting plane adjacent to each other along the opening and closing direction. The parting plane extends along the parting direction, and the first sliding plane extends along the opening and closing direction. The base is formed with a plurality of fixed parting protrusions along the opening and closing direction. The fixed parting protrusion is correspondingly adjacent to the plurality of sliding parting protrusions in the blocking direction. The fixed parting protrusion is formed with an extrusion plane and a second sliding plane adjacent to each other along the opening and closing direction. The second sliding plane is coplanar with the first sliding plane. The extrusion plane is inclined relative to the opening and closing direction. The parting tongue is elastically arranged on the moving template along the parting direction, and the free end of the parting tongue is inserted between two adjacent sliding parting protrusions at the same time. In the opening and closing direction, the minimum edge interval between the parting tongue and the parting plane is used as the parting interval, and the minimum edge interval between the parting tongue and the extrusion plane is used as the extrusion interval. The maximum value of all parting intervals is less than the minimum value of all extrusion intervals, and the plurality of parting intervals have a plurality of different interval values; the plurality of extrusion intervals have a plurality of different interval values.

[0008] Preferably, the parting tongue has an extrusion mating surface, and the extrusion mating surface corresponds to the extrusion plane in the opening and closing direction. When the parting tongue contacts the extrusion plane, the extrusion mating surface and the extrusion plane form an inclined plane moving fit.

[0009] Furthermore, the fixed parting protrusion is further formed with a guiding sliding plane. The extrusion plane, the second sliding plane and the guiding sliding plane are adjacent in sequence, and the extrusion plane and the guiding sliding plane are symmetrically formed on the opposite sides of the second sliding plane along the opening and closing direction. The sliding parting protrusion is further formed with a parting return plane. The parting return plane, the first sliding plane and the parting plane are adjacent in sequence along the opening and closing direction. The parting return plane and the guiding sliding plane both correspond to the extrusion mating surface in the opening and closing direction. When the parting tongue contacts the parting return plane, the extrusion mating surface and the parting return plane cooperate to form an inclined plane moving fit, and when the parting tongue contacts the guiding sliding plane, the extrusion mating surface and the guiding sliding plane cooperate to form an inclined plane moving fit.

[0010] Preferably, the utility model further comprises a parting component, which includes a pit cover plate and a parting tongue. The moving template has a parting groove that is open outward along both the opening and closing direction and the parting direction. The pit cover plate is arranged on the surface of the moving template and closes the parting groove in the opening and closing direction, thereby forming a tongue pit that is only open outward along the parting direction. The parting tongue is movably arranged in the tongue pit through concave-convex cooperation, and the parting tongue abuts against the inner wall of the tongue pit through a return spring.

[0011] Furthermore, the utility model further comprises an assembly component, which includes a positioning pin and a fastening screw that are close to each other. The base is fixedly arranged on the fixed template through the assembly component, and the power coupling end is on the output end of the template power source.

[0012] Preferably, the number is two, and they are symmetrically arranged on the opposite sides of the mold blank of the injection mold along the parting direction.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. Since the multi-moving template opening control device of the present utility model includes a base, a rake rod, and multiple parting tongues, the base is fixedly arranged on the fixed template; the rake rod is arranged on the base, and the rake rod is coupled with the template power source; multiple parting tongues are correspondingly arranged on multiple moving templates along the opening and closing direction, multiple sliding parting protrusions are formed on the rake rod, the sliding parting protrusions are formed with adjacent first sliding planes and parting planes, the base is formed with multiple fixed parting protrusions, the fixed parting protrusions are adjacent to the multiple sliding parting protrusions correspondingly, the fixed parting protrusions are formed with adjacent extrusion planes and second sliding planes, the second sliding plane is coplanar with the first sliding plane, the extrusion plane is inclinedly arranged relative to the opening and closing direction, the free end of the parting tongue is inserted between adjacent two sliding parting protrusions and between adjacent two fixed parting protrusions at the same time, the maximum value of all parting intervals is less than the minimum value of all extrusion intervals, and multiple parting intervals have multiple different interval values; multiple extrusion intervals have multiple different interval values. When the rake rod is driven by the template power source to move away from the base along the opening and closing direction relative to the base, the corresponding parting intervals and extrusion intervals both continuously become smaller. When the parting interval is 0, that is, when the parting tongue interferes with the parting plane, the parting plane drives the corresponding moving template to open through the parting tongue; when the extrusion interval is 0, that is, when the parting tongue interferes with the extrusion plane, the extrusion plane guides through the inclined plane to make the parting tongue move obliquely to the plane where the first and second sliding planes are located, that is, the parting tongue no longer interferes with the parting plane, so that the parting tongue no longer drives the corresponding moving template to continue to open and stops; thus, the opening of the parting surface corresponding to the moving template is realized, and because multiple parting intervals have multiple different interval values; multiple extrusion intervals have multiple different interval values, therefore, the present utility model only consists of two components with simple shapes, has a simple structure and is convenient to install. By setting multiple different parting intervals and corresponding multiple different extrusion intervals, multiple moving templates can be opened sequentially and stably in a predetermined order, and the opening degree can be accurately controlled. Thus, without additional devices, the opening and closing of multiple moving templates in the injection mold can be realized as needed, the overall structure of the injection mold is streamlined, the cost is reduced, the installation and debugging are convenient, and the corresponding parting surfaces can be conveniently increased by adding fixed parting protrusions and sliding parting protrusions, and the opening order of the multi-moving templates can be simply set.

[0015] 2. Since the fixed parting convex of the present utility model further forms a guiding sliding plane, an extrusion plane, a second sliding plane and the guiding sliding plane are adjacent to each other in sequence, and the extrusion plane and the guiding sliding plane are symmetrically formed on the relative two sides of the second sliding plane along the opening and closing direction, the sliding parting convex further forms a parting return plane, the parting return plane, the first sliding plane and the parting plane are adjacent to each other in sequence along the opening and closing direction, the parting return plane and the guiding sliding plane both correspond to the extrusion mating surface in the opening and closing direction. When the parting tongue contacts the parting return plane, the extrusion mating surface and the parting return plane cooperate to form an inclined plane movement cooperation, and when the parting tongue contacts the guiding sliding plane, the extrusion mating surface and the guiding sliding plane cooperate to form an inclined plane movement cooperation. When the rake bar is driven by the template power source to move relatively close to the base along the reverse opening and closing direction, through the guiding action of the guiding sliding plane and the parting return plane on the parting tongue, the parting tongue can move in the reverse opening and closing direction to be inserted between two adjacent sliding parting convexes and between two adjacent fixed parting convexes. Therefore, the present utility model can not only realize the parting of the multi-moving template, but also simply realize the reverse process after the parting is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the multi-moving template opening control device of the embodiment of the present utility model;

[0017] Figure 2 Schematic diagram of the implementation of the multi-moving template opening control device of the embodiment of the present utility model in the mold blank;

[0018] Figure 3 Schematic diagram of the rake bar of the embodiment of the present utility model;

[0019] Figure 4 Exploded view of the rake bar, the parting component and the moving template of the embodiment of the present utility model;

[0020] Figure 5 Schematic diagram of the parting control process of the embodiment of the present utility model.

[0021] In the figure: 100, multi-movable template opening control device; M1, mold blank; M11, fixed template; M12, direct-acting rear mold; M13, movable template; D1, opening and closing direction; D2, parting direction; D3, blocking direction; 10, base; 11, fixed parting protrusion; 11a, base parting concave position; 111, extrusion plane; 112, second sliding plane; 113, guide sliding plane; 20, rake rod; 20a, power coupling end; 21, sliding parting protrusion; 21a, rake rod parting concave position; 211, parting return plane; 212, first sliding plane; 213, parting plane; 30, parting component; 30A, parting groove; 31, pit cover plate; 32, parting spring tongue; 321, hook stop tongue section; 322, insertion tongue section; 322a, extrusion mating surface; 322b, blocking surface; 33, return spring; 40, assembly component; 41, positioning pin; 42, fastening screw. Detailed implementation mode

[0022] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the following embodiments will specifically elaborate on the multi-movable template opening control device of the present utility model in conjunction with the accompanying drawings. It should be noted that the description of these implementation modes is used to help understand the present utility model, but does not constitute a limitation to the present utility model.

[0023] As Figure 1 and Figure 2 shown, the multi-movable template opening control device 100 in this embodiment is arranged in the mold blank M1 of the injection mold. The injection mold includes a template power source driven linearly (not shown in the drawings) and a plurality of movable templates M11 arranged along the opening and closing direction D1. Based on the opening and closing direction D1, the parting direction D2 and the blocking direction D3 are defined. The opening and closing direction D1, the parting direction D2 and the blocking direction D3 are perpendicular to each other. Specifically, the number of the multi-movable template opening control devices 100 is two, and they are symmetrically arranged on the opposite outer sides of the mold blank of the injection mold along the parting direction D2. The movable template M11 directly coupled with the template power source is used as the direct-acting rear mold M12. The overall contour formed by the plurality of movable templates M11 is a rectangular body contour. The height direction of the rectangular body corresponds to the opening and closing direction D1; the length direction corresponds to the parting direction D2; the width direction corresponds to the blocking direction D3.

[0024] The multi-movable template opening control device 100 includes a base 10, a rake rod 20, a parting component 30 and an assembly component 40.

[0025] The base 10 is fixedly arranged on the fixed template M11. Multiple fixed parting convexities 11 are formed on the base 10 along the opening and closing direction D1. The fixed parting convexities 11 are formed with an extrusion plane 111, a second sliding plane 112, and a guiding sliding plane 113 that are sequentially adjacent to each other along the opening and closing direction D1. The extrusion plane 111 and the guiding sliding plane 113 are both inclined with respect to the opening and closing direction D1, and the extrusion plane 111 and the guiding sliding plane 113 are symmetrically formed on the opposite sides of the second sliding plane 112 along the opening and closing direction D1.

[0026] The second sliding plane 112 is a plane extending along the opening and closing direction D1. Specifically, the extrusion plane 111, the second sliding plane 112, and the guiding sliding plane 113 form a continuous surface of the fixed parting convexity 11 along the opening and closing direction D1. And the extrusion plane 111, the second sliding plane 112, and the guiding sliding plane 113 are the upper base and two waists of an isosceles trapezoid. And a base parting concave position 11a recessed along the parting direction D2 is formed between two adjacent fixed parting convexities 11 in the opening and closing direction D1.

[0027] As Figure 3 shown, the rake bar 20 is arranged on the base 10 along the opening and closing direction D1. The rake bar 20 has a power coupling end 20a coupled to the template power source, and the power coupling end 20a is away from the base 10 along the opening and closing direction D1. Specifically, the power coupling end 20a is fixedly arranged on the side of the direct-acting rear mold M12.

[0028] Multiple sliding parting convexities 21 are formed on the rake bar 20 along the opening and closing direction D1. The sliding parting convexities 21 are formed with a parting recovery plane 211, a first sliding plane 212, and a parting plane 213 that are sequentially adjacent to each other along the opening and closing direction D1. And the first sliding plane 212 and the second sliding plane 112 are coplanar. The parting plane 213 is a plane extending along the parting direction D2.

[0029] Specifically, the parting recovery plane 211, the first sliding plane 212, and the parting plane 213 form a continuous surface of the sliding parting convexity 21 along the opening and closing direction D1. And the extrusion, the parting recovery plane 211, the first sliding plane 212, and the parting plane 213 are the upper base and two waists of a right-angled trapezoid. And a rake bar parting concave position 21a recessed along the parting direction D2 is formed between two adjacent sliding parting convexities 21 in the opening and closing direction D1.

[0030] Multiple fixed parting convexities 11 are correspondingly adjacent to multiple sliding parting convexities 21 in the blocking direction D3. Specifically, the base parting concave position 11a and the rake bar parting concave position 21a are correspondingly adjacent in the blocking direction D3. When the rake bar 20 is moved relative to the base 10 along the opening and closing direction D1, the rake bar parting concave position 21a moves relative to the base parting concave position 11a along the opening and closing direction D1.

[0031] As Figure 4As shown, the mold splitting component 30 includes a pit cover plate 31, a plurality of mold splitting tongues 32, and a return spring 33.

[0032] The moving template M12 of the non-direct-acting rear mold M13 has a mold splitting groove 30A that opens outward along both the opening and closing direction D1 and the mold splitting direction D2. The pit cover plate 31 is provided on the surface of the moving template M12 and closes the mold splitting groove 30A in the opening and closing direction D1, thereby forming a tongue pit that only opens outward along the mold splitting direction D2 (not shown in the drawings). The mold splitting tongues 32 are movably arranged in the tongue pit through concave-convex cooperation, and the mold splitting tongues 32 are in contact with the inner wall of the tongue pit through the return spring 33. Thus, a plurality of mold splitting tongues 32 are correspondingly arranged on a plurality of moving templates M12 along the opening and closing direction D1, and the mold splitting tongues 32 are elastically arranged on the moving template M12 along the mold splitting direction D2. And the free ends of the mold splitting tongues 32 are simultaneously inserted between two adjacent sliding mold splitting protrusions 21 and between two adjacent fixed mold splitting protrusions 11. Specifically, the free ends of the mold splitting tongues 32 are simultaneously inserted into the base mold splitting concave position 11a and into the rake rod mold splitting concave position 21a.

[0033] The mold splitting tongue 32 has an extrusion mating surface 322a that faces and corresponds to the extrusion plane 111 along the opening and closing direction D1. Specifically, the mold splitting groove 30A has a bent shape, thereby forming a blocking step surface (not shown in the drawings) parallel to the blocking direction D3. The mold splitting tongue 32 has a hooked tongue section 321 and an insertion tongue section 322 formed by bending. The hooked tongue section 321 is in concave-convex cooperation with the blocking step surface, and the insertion tongue section 322 can extend or retract relative to the mold splitting groove 30A. The extrusion mating surface 322a is formed on the insertion tongue section 322, and the insertion tongue section also has a blocking surface 322b opposite to the extrusion mating surface 322a.

[0034] In the opening and closing direction D1, the minimum edge interval between the mold splitting tongue 32 and the mold splitting plane 213 is used as the mold splitting interval, and the minimum edge interval between the mold splitting tongue 32 and the extrusion plane 111 is used as the extrusion interval. The maximum value of all mold splitting intervals is less than the minimum value of all extrusion intervals, and the multiple mold splitting intervals have multiple different interval values; the multiple extrusion intervals have multiple different interval values.

[0035] When the mold splitting tongue 32 contacts the extrusion plane 111, the extrusion mating surface 322a and the extrusion plane 111 form an inclined plane movement fit, and the mold splitting return plane 211 and the guiding sliding plane 113 both correspond to the extrusion mating surface 322a in the opening and closing direction D1. When the mold splitting tongue 32 contacts the mold splitting return plane 211, the extrusion mating surface 322a and the mold splitting return plane 211 cooperate to form an inclined plane movement fit, and when the mold splitting tongue 32 contacts the guiding sliding plane 113, the extrusion mating surface 322a and the guiding sliding plane 113 cooperate to form an inclined plane movement fit.

[0036] Specifically, as Figure 5 shown, when the rake rod 20 is continuously moved relative to the stationary base 10 along the opening and closing direction D1, the state of the multi-movable template opening control device 100 continuously changes as shown in (a) to (d). That is, the sliding parting protrusion 21 and the fixed parting protrusion 11 form a continuous and staggered process, and the corresponding parting interval and extrusion interval both continuously decrease. When the parting interval is 0, that is, when the parting tongue 32 interferes with the parting plane 213, the parting plane 213 drives the corresponding movable template M12 to open through the parting tongue 32; when the extrusion interval is 0, that is, when the parting tongue 32 interferes with the extrusion plane 111, the extrusion plane 111 guides the parting tongue 32 to move obliquely to the plane where the first sliding plane 212 and the second sliding plane 112 are located through the inclined plane, that is, the parting tongue 32 no longer interferes with the parting plane 213, so that the parting tongue 32 no longer drives the corresponding movable template M12 to continue to open and stops; thereby realizing the opening of the parting surface corresponding to the movable template M12, and because there are multiple different interval values for multiple parting intervals; there are multiple different interval values for multiple extrusion intervals, and through a simple design, multiple movable templates M12 can be sequentially parted in a predetermined order, and the opening degree between the movable templates M12 can be accurately controlled.

[0037] Specifically, when the rake rod 20 is driven by the template power source to move reversely close to the base 10 relative to the base 10 along the opening and closing direction D1, through the inclined plane guiding of the guide sliding plane 113 and the parting return plane 211 on the parting tongue 32, the parting tongue 32 can move against the opening and closing direction D1 to be inserted between two adjacent sliding parting protrusions 21 and between two adjacent fixed parting protrusions 11, that is, return to the initial state before the movable template M12 is parted.

[0038] The assembly component 40 includes a positioning pin 41 and a fastening screw 42 that are close to each other. The base 10 is fixedly arranged on the fixed template M11 through the assembly component 40, and the power coupling end 20a is fixedly arranged and coupled with the output end of the template power source through the assembly component 40. Specifically, the end of the base 10 away from the direct-acting rear mold M12 is fixedly arranged on the fixed template M11 through the assembly component 40.

[0039] The above embodiments are preferred cases of the present invention and do not limit the protection scope of the present invention. Various deformations or modifications that can be made by those of ordinary skill in the art without creative labor within the scope of the appended claims still fall within the protection scope of this patent.

Claims

1. A multi-movable template opening control device is arranged in a mold blank of an injection mold, the injection mold comprises a linearly driven template power source and a plurality of movable templates arranged along an opening and closing direction, a parting direction and an obstruction direction are defined based on the opening and closing direction, the opening and closing direction, the parting direction and the obstruction direction are perpendicular to each other, and is characterized in that: include: A base is fixed on the fixed template; A rake rod is arranged on the base along the opening and closing direction, the rake rod has a power coupling end coupled with a template power source, and the power coupling end is away from the base along the opening and closing direction; Multiple parting spring tongues are correspondingly arranged on multiple moving templates along the opening and closing direction. Wherein, a plurality of sliding parting protrusions are formed on the rake rod along the opening and closing direction, and the sliding parting protrusions are formed with a first sliding plane and a parting plane adjacent to each other along the opening and closing direction, the parting plane extends along the parting direction, and the first sliding plane extends along the opening and closing direction. The base is formed with a plurality of fixed parting protrusions along the opening and closing direction, the fixed parting protrusions are correspondingly adjacent to the plurality of sliding parting protrusions in the blocking direction, the fixed parting protrusions are formed with an extrusion plane and a second sliding plane adjacent to each other along the opening and closing direction, the second sliding plane is coplanar with the first sliding plane, and the extrusion plane is inclined relative to the opening and closing direction, The parting spring tongue is elastically arranged on the movable template along the parting direction, and the free end of the parting spring tongue is inserted between two adjacent sliding parting protrusions and between two adjacent fixed parting protrusions at the same time. In the opening and closing direction, the minimum edge spacing between the parting tongue and the parting plane is used as the parting spacing, and the minimum edge spacing between the parting tongue and the extrusion plane is used as the extrusion spacing. The maximum value of all the parting spacings is less than the minimum value of all the extrusion spacings, and multiple parting spacings have multiple different spacing values; multiple extrusion spacings have multiple different spacing values.

2. The multi-movable template opening control device according to claim 1 is characterized in that: in, The parting spring tongue has an extrusion matching profile, which corresponds to the extrusion plane in the opening and closing direction, and when the parting spring tongue contacts the extrusion plane, the extrusion matching profile and the extrusion plane form an inclined plane moving match.

3. The multi-movable template opening control device according to claim 2 is characterized in that: in, The fixed parting protrusion is also formed with a guide sliding plane, the extrusion plane, the second sliding plane and the guide sliding plane are adjacent to each other in sequence, and the extrusion plane and the guide sliding plane are symmetrically formed on opposite sides of the second sliding plane along the opening and closing direction. The sliding parting protrusion is also formed with a parting recovery plane, and the parting recovery plane, the first sliding plane and the parting plane are adjacent to each other in sequence along the opening and closing direction. The parting recovery plane and the guide sliding plane both correspond to the extrusion fitting surface in the opening and closing direction. When the parting spring tongue contacts the parting recovery plane, the extrusion fitting surface and the parting recovery plane cooperate to form an inclined surface movement fit. When the parting spring tongue contacts the guide sliding plane, the extrusion fitting surface and the guide sliding plane cooperate to form an inclined surface movement fit.

4. The multi-movable template opening control device according to claim 1 is characterized in that: Also includes: The parting assembly comprises a pit cover plate and the parting spring tongue, The movable template has a parting groove that is open outward along both the opening and closing direction and the parting direction. The pit cover is arranged on the surface of the movable template and closes the parting groove in the opening and closing direction, thereby forming a tongue pit that is open outward only along the parting direction. The parting spring tongue is movably arranged in the spring tongue pit through concave-convex cooperation, and the parting spring tongue abuts against the inner wall of the spring tongue pit through a return spring.

5. The multi-movable template opening control device according to claim 1 is characterized in that: Also includes: The assembly component comprises positioning pins and fastening screws close to each other. The base is fixed on the fixed template through the assembly component, and the power coupling end passes through the output end of the template power source.

6. The multi-movable template opening control device according to claim 1 is characterized in that: There are two of them, which are symmetrically arranged on opposite sides of the mold base of the injection mold along the parting direction.

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