Profiling jig and mold

Abstract

The utility model relates to toy molding technical field provides profiling fixture and mould, profiling fixture includes thimble, guide shaft, connecting column, power mechanism, sucking disc subassembly and the connecting plate, fixed mainboard, thimble upper fixed plate, profiling fixture fixed plate, jig plate that arrange in proper order, when power mechanism drives thimble upper fixed plate to move close to jig plate, thimble presses on single part and makes single part fall off, when power mechanism drives thimble upper fixed plate to move away from jig plate, thimble moves away from the direction of jig plate. The utility model discloses profiling fixture can remove single part after shaping in one injection mould to two injection mould, profiling fixture is equipped with thimble and pushes out single part, solves the problem that part is not easy to fall off, makes part to be able to place stably or accurately on multicolor mould, improves processing efficiency, also is favorable to the stability of product quality.

Description

Technical Field

[0001] This utility model relates to the field of toy molding technology, specifically to a contour jig and mold. Background Technology

[0002] In the prior art, when injection molded toys are formed by secondary injection molding, the entire runner design and sheet metal product are first formed, and then the entire injection molded part is transferred to the secondary molding mold for secondary molding. A jig is used when the injection molded part is moved. The existing jig does not require ejector pins and directly picks up the part by suction cup or plunger. After the suction cup or plunger is released, the part falls into the corresponding mold space.

[0003] However, when transferring small toy pieces onto a multi-shot mold, the structure of this type of fixture often results in parts that are difficult to detach, making it impossible to place the pieces stably or accurately onto the two-shot or multi-shot mold. Therefore, the existing fixture structure design is unreasonable. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a contour jig and mold.

[0005] According to the present invention, a contour jig is provided, including an ejector pin, a power mechanism, a suction cup assembly, and an ejector pin fixing plate, a contour jig fixing plate, and a jig plate arranged in sequence, wherein the suction cup assembly is disposed on the contour jig fixing plate.

[0006] The power mechanism is mounted on the ejector pin fixing plate, and the drive end of the power mechanism is mounted on the contour jig fixing plate.

[0007] One end of the ejector pin is mounted on the ejector pin fixing plate, and the other end of the ejector pin passes through the ejector pin fixing plate and the contour jig fixing plate in sequence and extends into the jig plate. When the power mechanism drives the ejector pin fixing plate to move closer to the contour jig fixing plate and the jig plate, the ejector pin presses against a single part, causing the single part to fall off and be accurately placed in the required position on the plate. When the power mechanism drives the ejector pin fixing plate to move away from the contour jig fixing plate and the jig plate, the ejector pin moves in the direction away from the jig plate.

[0008] Preferably, it further includes a connecting plate, a fixed main plate, a guide shaft, and a connecting column, wherein the connecting plate, the fixed main plate, the upper fixing plate of the ejector pin, the conforming fixture fixing plate, and the fixture plate are connected in sequence;

[0009] The connecting plate and the fixed main board are fitted with a clearance.

[0010] One end of the guide shaft is disposed on the contour jig fixing plate, and the other end of the guide shaft extends into the fixing plate and is movably engaged with the fixing plate. A first spring is fitted on the guide shaft, and the first spring is located between the contour jig fixing plate and the fixing plate.

[0011] One end of the connecting post is fixed to the contour jig fixing plate, and the other end of the connecting post passes through the fixed main plate and is limited by the protrusion at the end. A second spring is fitted on the connecting post and the second spring is located between the fixed main plate and the contour jig fixing plate. The second spring is always in a compressed state.

[0012] Preferably, it further includes a lower ejector pin fixing plate, which is disposed between the fixed main plate and the upper ejector pin fixing plate;

[0013] The lower fixing plate and the upper fixing plate of the ejector pin are connected by a second pad.

[0014] Preferably, a plunger is disposed on the side of the ejector pin fixing plate facing the fixing motherboard, there is a gap between the plunger and the fixing motherboard, and one end of the ejector pin contacts the end of the plunger facing away from the fixing motherboard.

[0015] Preferably, the fixed main board has a positioning hole, and a second linear bearing is disposed on the positioning hole.

[0016] Preferably, each of the individual parts corresponds to one or more of the ejector pins.

[0017] Preferably, the plurality of the top points are arranged symmetrically.

[0018] Preferably, the connecting plate and the fixed main plate are connected by a first spacer.

[0019] Preferably, both ends of the first pad are provided with wire thread sleeves, one end of the first pad is detachably fixed to the connecting plate by a first screw, and the other end of the first pad is detachably fixed to the fixed main board by a second screw.

[0020] Preferably, the contour jig picks up the individual part using a suction cup assembly.

[0021] Preferably, the power mechanism is a cylinder.

[0022] According to the mold provided by this utility model, the aforementioned contour jig is used to pick up or position a board toy. The mold is a single-shot mold or a multi-shot mold.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] This invention uses a contour jig to transfer a single part, which has been formed in a single-shot mold, to a multi-shot mold. The contour jig is equipped with ejector pins to eject the single part, which solves the problem of the part not easily falling off. This allows the part to be placed stably or accurately on the multi-shot mold, improving processing efficiency and also contributing to the stability of product quality. Attached Figure Description

[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 A top view schematic diagram of the structure of a molding die;

[0027] Figure 2 for Figure 1 Sectional view along line AA;

[0028] Figure 3 for Figure 2 Enlarged structural diagram of part A in the middle;

[0029] Figure 4 for Figure 2 Enlarged structural diagram of section B in the middle;

[0030] Figure 5 This is a structural schematic diagram of a single part;

[0031] Figure 6 This is a top view schematic diagram of the structure of a two-shot mold;

[0032] Figure 7 for Figure 1 Sectional view along the BB direction;

[0033] Figure 8 This is an exploded view of the structure of a contour jig, in which the lower fixing plate of the ejector pin is not shown;

[0034] Figure 9 This is a bottom view diagram of the structure of a contour jig;

[0035] Figure 10 for Figure 9 C-axis sectional view;

[0036] Figure 11 This is a side view diagram of the contour jig structure;

[0037] Figure 12 This is a structural diagram of the entire panel.

[0038] The diagram shows:

[0039] One-shot mold 1;

[0040] First positioning post 11;

[0041] First male mold core 12;

[0042] First public template 13;

[0043] First upper ejector plate 14;

[0044] First lower ejector plate 15;

[0045] Delay space 151;

[0046] First lower fixing plate 16;

[0047] 17mm dome pin for sprue material;

[0048] Delayed dome pin 18;

[0049] First ejector needle 19;

[0050] Water inlet cold material well 101;

[0051] Two-shot mold 2;

[0052] Second positioning post 21;

[0053] Second male mold core 22;

[0054] Second public template 23;

[0055] Second upper ejector plate 24; Third spring 241;

[0056] Second lower ejector plate 25; Second lower fixing plate 26; Round ejector pin 27;

[0057] Second ejector needle 28;

[0058] 3 pieces in total;

[0059] 31 for a single part;

[0060] Part Two, 32;

[0061] Copying fixture 4;

[0062] Connecting plate 41;

[0063] First screw 411;

[0064] Second screw 412;

[0065] First support post 413;

[0066] Wire thread insert 4131;

[0067] Fixed motherboard 42;

[0068] First linear bearing 421; Second linear bearing 422; Third linear bearing 423; Plunger 424;

[0069] Connecting post 425;

[0070] Second support column 426;

[0071] Lower ejector plate 43; Upper ejector plate 44; Ejector 441;

[0072] First spring 4411;

[0073] Guide shaft 442;

[0074] Second spring 4421;

[0075] Contouring fixture fixing plate 45;

[0076] Intake connection hole 451;

[0077] Jig board 46;

[0078] Cylinder 47;

[0079] Suction cup assembly 48. Detailed Implementation

[0080] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0081] This utility model provides a contour jig, such as Figures 8 to 11 As shown, the assembly includes an ejector pin 441, a guide shaft 442, a connecting post 425, a power mechanism, a suction cup assembly 48, and sequentially arranged connecting plate 41, a fixed main plate 42, a lower ejector pin fixing plate 43, an upper ejector pin fixing plate 44, a contour jig fixing plate 45, and a jig plate 46. The suction cup assembly 48 is disposed on the contour jig fixing plate 45 and is equipped with a suction cup, which can pick up the injection-molded sheet metal parts. The connecting plate 41 and the fixed main plate 42 are clearance-fitted. Specifically, a first pad post 413 is disposed between the connecting plate 41 and the fixed main plate 42. Both ends of the first pad post 413 are equipped with wire thread sleeves 4131. One end of the first pad post 413 is detachably fixed to the connecting plate 41 by a first screw 411, and the other end of the first pad post 413 is detachably fixed to the fixed main plate 42 by a second screw 412.

[0082] Furthermore, the power mechanism is configured on the upper fixing plate 44 of the ejector pin, and the drive end of the power mechanism is configured on the template fixing plate 45. The power mechanism is preferably a cylinder 47. Specifically, the cylinder 47 is configured on the upper fixing plate 44 of the ejector pin, and the end of the ejector rod of the cylinder 47 is configured on the template fixing plate 45.

[0083] like Figure 8 , Figure 10 , Figure 11 As shown, one end of the guide shaft 442 is disposed on the contour jig fixing plate 45, and the other end of the guide shaft 442 extends into the fixing plate 42 and is movably engaged with the fixing plate 42. The fixing plate 42 is provided with a plurality of first linear bearings 421 and second linear bearings 422, preferably four first linear bearings 421 and four second linear bearings 422. One end of the guide shaft 442 is disposed on the contour jig fixing plate 45, and the other end of the guide shaft 442 extends into the first linear bearing 421 and can slide in the first linear bearing 421. A first spring 4411 is fitted on the guide shaft 442, and the first spring 4411 is located between the contour jig fixing plate 45 and the first linear bearing 421.

[0084] One end of the connecting post 425 is fixed to the contour jig fixing plate 45, and the other end of the connecting post 425 passes through the fixing main plate 42 and is limited by the protrusion at the end. A second spring 4421 is fitted on the connecting post 425 and the second spring 4421 is located between the fixing main plate 42 and the contour jig fixing plate 45. The second spring 4421 is always in a compressed state.

[0085] like Figure 8 , Figure 10 , Figure 11 As shown, a plunger 424 is disposed on the side of the lower ejector plate 43 facing the fixed main plate 42. There is a gap between the plunger 424 and the fixed main plate 42. One end of the ejector pin 441 is disposed on the upper ejector plate 44 and contacts the end of the plunger 424 facing away from the fixed main plate 42. The lower ejector plate 43 and the upper ejector plate 44 are connected by a second pad 426. The other end of the ejector pin 441 passes through the upper ejector plate 44 and the contour jig fixing plate 45 in sequence and extends into the jig plate 46. When the cylinder 47 retracts, it can drive the upper ejector plate 44 to move closer to the contour jig fixing plate 45 and the jig plate 46. The ejector pin 441 presses against the single part 31, causing the single part 31 to fall off and be accurately placed in the required position on the plate. When the cylinder 47 extends, the upper ejector plate 44 moves away from the contour jig fixing plate 45 and the jig plate 46, and the ejector pin 441 moves away from the jig plate 46.

[0086] Each individual part 31 corresponds to one or more ejector pins 441.

[0087] This utility model also provides a mold that uses a contour jig to pick up or position a board toy. The mold is a single-shot mold 1 or a multi-shot mold. The multi-shot mold is, for example, a two-shot mold 2 or a three-shot mold. It should be noted that picking up the board toy refers to picking up a single part 31 formed from the single-shot mold 1, and positioning the board toy refers to positioning the single part 31 formed from the single-shot mold 1 into the cavity of the two-shot mold 2 using the contour jig.

[0088] Furthermore, the injection molding process of the board toy product is as follows: First, a first part is formed on the first injection mold 1 to form a single part 31, and the single part 31 is picked up by the contour jig 4; second, the contour jig 4 with the single part 31 is assembled into the second injection mold 2 and the single part 31 is positioned by positioning the contour jig 4; finally, a second part 32 is formed on the single part 31 by the second injection mold 2 to form the entire board 3, and the entire board 3 is preferably a two-color joint part.

[0089] Furthermore, the fixed main board 42 has multiple positioning holes, and a second linear bearing 422 is configured on the positioning holes, preferably a total of 4 second linear bearings 422. The first injection mold 1 has a first positioning post 11, and the second injection mold 2 has a second positioning post 21. The second linear bearing 422 is used to match the first positioning post 11 and be positioned on the first injection mold 1, or to match the second positioning post 21 and be positioned on the second injection mold 2, so as to pick up a single part 31 or place a single part 31 in the cavity of the second injection mold 2.

[0090] It should be noted that the entire plate 3 is preferably a two-color joint part. The first-shot mold 1 is designed with a shrinkage rate of 16-20‰ for a single part 31. The entry point is designed with a separate entry point and the part arrangement is consistent with the second-shot mold 2. The second-shot mold 2 has a cavity to accommodate the single part 31. The contour jig 4 places the single part 31 in the cavity through its own ejector pins 441. This utility model first forms the single part 31 and then forms the entire plate 3. Compared with the prior art, it achieves precise positioning of the single part 31 on the second-shot mold 2. Since the shrinkage rate of the single part 31 is stable, the shrinkage at the center point of the single product is easy to control, reducing the difficulty of mold repair and ensuring the stability of product quality.

[0091] Furthermore, the position of a single part 31 in the first injection mold 1 corresponds to its position in the second injection mold 2. After the contour jig 4 is positioned on the first injection mold 1 to pick up the single part 31, it is moved to the second injection mold 2 and positioned thereafter, allowing the single part 31 to be placed in the cavity to meet the needs of secondary molding. During the injection molding process, after the single part 31 is formed, it is ejected and separated from the sprue. The robotic arm drives the contour jig 4 to remove the single part 31 and the sprue. Midway through the process, the sprue is placed into the recycling bin, and then the single part 31 is placed into the second injection mold 2. The sprue here is the runner.

[0092] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the injection mold 1 includes a first positioning post 11, a first male mold core 12, a first male template 13, a first upper ejector plate 14, a first lower ejector plate 15, a first lower fixing plate 16, a sprue ejector pin 17, a delay ejector pin 18, a first ejector sleeve pin 19, and a sprue cold slug well 101. The first male mold core 12, the first male template 13, the first upper ejector plate 14, the first lower ejector plate 15, and the first lower fixing plate 16 are arranged sequentially from top to bottom. The first positioning post 11 passes through the first male mold core 12 and its bottom end abuts against the first male template 13. The top end of the first positioning post 11 extends above the first male mold core 12. The contour jig 4 achieves positioning in the injection mold 1 through the first positioning post 11, thereby accurately picking up individual parts 31.

[0093] Furthermore, the bottom of the delay ejector pin 18 is disposed on the first lower fixing plate 16, and the upper end passes through the first lower ejector plate 15 and is connected to the bottom of the sprue ejector pin 17. The top of the sprue ejector pin 17 passes through the first upper ejector plate 14 and the first male mold plate 13 in sequence and extends to the top of the first male mold core 12. The sprue cold slug well 101 is disposed below the individual part 31.

[0094] like Figure 2 , Figure 4 As shown, a delay space 151 is configured on the first lower ejector plate 15, the height of which is L, where L is the delay distance, and the value of L is 5-8mm. A reverse draft mold is made on the first male mold core 12, that is, a sprue cooling slug well 101 is set on the first male mold core 12. Figure 3 As shown, the cross-section of the sprue cooling well 101 is an inverted trapezoidal structure. The angle between the hypotenuse of the inverted trapezoidal structure and the vertical direction is 5-10°. The depth of the sprue cooling well 101 is 3-5mm. The purpose of setting the sprue cooling well 101 is to increase the pulling force of the flow channel. First, the individual parts 31 are pushed out. During the pushing process, the individual parts 31 are pulled apart from the flow channel inlet. After being pushed out 5-8mm, the flow channel is pushed out together to the distance where it can be removed.

[0095] like Figure 6 , Figure 7 As shown, the two-shot mold 2 includes a second positioning pin 21, a second male mold core 22, a second male mold plate 23, a second upper ejector plate 24, a second lower ejector plate 25, a second lower fixing plate 26, a round ejector pin 27, and a second ejector sleeve 28. The second male mold core 22, the second male mold plate 23, the second upper ejector plate 24, the second lower ejector plate 25, and the second lower fixing plate 26 are arranged sequentially from top to bottom. The second positioning pin 21 passes through the second male mold core 22 and its bottom end abuts against the top of the second male mold plate 23. The top end of the second positioning pin 21 extends above the second male mold core 22. The contour jig 4 is positioned on the two-shot mold 2 through the second positioning pin 21. The top end of the round ejector pin 27 extends into the second male mold core 22. The round ejector pin 27 can move relative to the second male mold core 22 and the second male mold plate 23, thereby ejecting the entire plate 3. The second ejector sleeve 28 extends into the second male mold plate 23 and the second upper ejector plate 24. A third spring 241 is disposed between the second male template 23 and the second upper ejector plate 24. When the second male template 23 moves close to the second upper ejector plate 24, the entire plate 3 is pushed out by the round ejector pin 27, and the third spring 241 is compressed. In its natural state, the third spring 241 can elastically push the second male template 23 to the initial position.

[0096] The working principle of the profiling fixture in this utility model is as follows:

[0097] like Figures 8 to 12 As shown, the contour jig 4 is equipped with an ejector pin 441, which ejects a single part 31, making the placement of the single part 31 more precise. Specifically, the contour jig fixing plate 45 is equipped with a suction cup assembly 48 and a suction connection hole 451. The suction cup assembly 48 has a suction cup at its end, which extends to the outside of the jig plate 46. The suction connection hole 451 connects to the suction cup, and the suction cup can be used to perform the function of suction or blowing by controlling the air.

[0098] First, control the suction cup to release. At this time, control the ejector pin 441 to eject, so that the single part 31 can be accurately placed in the required position on the plate. The ejector pin corresponds to a single part 31. Preferably, one part corresponds to 1 to 3 ejector pins 441. When using one ejector pin 441, the ejector pin 441 should be directly facing the center position of the part. If multiple ejector pins 441 are set, they should be arranged symmetrically. For example, if two ejector pins 441 are set, they should be placed symmetrically with respect to the position of the part. The purpose is to enable the single part 31 to be placed parallel or stably on the two-shot mold 2.

[0099] The ejector pin 441 is mounted on the ejector pin fixing plate 44. When the cylinder 47 retracts, it can drive the ejector pin fixing plate 44 to move closer to the contour jig fixing plate 45 and jig plate 46, thereby driving the ejector pin 441 to move toward the jig plate 46 to realize the ejection action of a single part 31.

[0100] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0101] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A contour jig, characterized in that, It includes an ejector pin (441), a power mechanism, a suction cup assembly (48), and an ejector pin upper fixing plate (44), a contour jig fixing plate (45), and a jig plate (46) arranged in sequence. The suction cup assembly (48) is disposed on the contour jig fixing plate (45). The power mechanism is mounted on the upper fixing plate (44) of the ejector pin, and the drive end of the power mechanism is mounted on the molding fixture fixing plate (45). One end of the ejector pin (441) is disposed on the ejector pin fixing plate (44), and the other end of the ejector pin (441) passes through the ejector pin fixing plate (44), the contour jig fixing plate (45) and extends into the jig plate (46) in sequence. When the power mechanism drives the ejector pin fixing plate (44) to move closer to the contour jig fixing plate (45) and the jig plate (46), the ejector pin (441) presses against the single part (31) so that the single part (31) falls off and is accurately placed in the required position of the plate. When the power mechanism drives the ejector pin fixing plate (44) to move away from the contour jig fixing plate (45) and the jig plate (46), the ejector pin (441) moves away from the jig plate (46).

2. The contour jig according to claim 1, characterized in that, It also includes a connecting plate (41), a fixed main plate (42), a guide shaft (442), and a connecting post (425), wherein the connecting plate (41), the fixed main plate (42), the upper fixing plate of the ejector pin (44), the conforming fixture fixing plate (45), and the fixture plate (46) are connected in sequence; The connecting plate (41) and the fixed main plate (42) are fitted with a clearance. One end of the guide shaft (442) is disposed on the profiling fixture fixing plate (45), and the other end of the guide shaft (442) extends into the fixing plate (42) and is movably engaged with the fixing plate (42). A first spring (4411) is fitted on the guide shaft (442), and the first spring (4411) is located between the profiling fixture fixing plate (45) and the fixing plate (42). One end of the connecting post (425) is fixed on the contour jig fixing plate (45), and the other end of the connecting post (425) passes through the fixing main plate (42) and is limited by the protrusion at the end. A second spring (4421) is fitted on the connecting post (425) and the second spring (4421) is located between the fixing main plate (42) and the contour jig fixing plate (45). The second spring (4421) is always in a compressed state.

3. The contour jig according to claim 2, characterized in that, It also includes a lower ejector plate (43), which is disposed between the fixed main plate (42) and the upper ejector plate (44); The lower fixing plate (43) and the upper fixing plate (44) of the ejector pin are connected by a second pad (426).

4. The contour jig according to claim 3, characterized in that, The lower fixing plate (43) of the ejector pin is provided with a plunger (424) on the side facing the fixing main plate (42). There is a gap between the plunger (424) and the fixing main plate (42). One end of the ejector pin (441) contacts the end of the plunger (424) facing away from the fixing main plate (42).

5. The contour jig according to claim 2, characterized in that, The fixed main board (42) has a positioning hole, and a second linear bearing (422) is disposed on the positioning hole.

6. The contour jig according to claim 1, characterized in that, Each of the individual parts (31) corresponds to one or more of the ejector pins (441).

7. The contour jig according to claim 6, characterized in that, Multiple of the aforementioned ejector pins (441) are arranged symmetrically.

8. The contour jig according to claim 2, characterized in that, The connecting plate (41) and the fixed main plate (42) are connected by a first pad (413).

9. The contour jig according to claim 8, characterized in that, Both ends of the first pad (413) are equipped with wire thread sleeves (4131). One end of the first pad (413) is detachably fixed to the connecting plate (41) by the first screw (411), and the other end of the first pad (413) is detachably fixed to the fixing main plate (42) by the second screw (412).

10. The contour jig according to claim 1, characterized in that, The contour jig (4) picks up the individual part (31) via the suction cup assembly (48).

11. The contour jig according to claim 1, characterized in that, The power mechanism is a cylinder (47).

12. A mold, characterized in that, The mold is used to pick up or position a board toy using any one of claims 1 to 11, wherein the mold is a single-shot mold (1) or a multi-shot mold.

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