Shaping jig for plastic products

Abstract

The utility model discloses a shaping jig for plastic products. The shaping jig comprises a rack body, a pressing part and a jig part, wherein the pressing part and the jig part are mounted on the rack body; the pressing part comprises a driving element and a pressing plate arranged at the output end of the driving element, the rack body is further provided with at least four sets of guide columns, the guide columns are sleeved with first elastic elements, one ends of the first elastic elements abut against the rack body, and the other ends of the first elastic elements abut against the guide columns; the jig part comprises a bottom plate sliding on the rack body and a plurality of jigs arranged on the bottom plate; the jig comprises a profiling block and a shaping block rotating in the profiling block, and a second elastic element abutting against the shaping block is further arranged in the profiling block. According to the utility model, a demolded product is sleeved in the profiling block and then pressed in by the pressing plate, and the shaping block outwards supports a shrinkage area, so that the size is prevented from shrinking inwards, the size accuracy is improved, and the percent of pass is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of plastic product, especially relate to a plastic product shaping fixture. BACKGROUND

[0002] Plastic products are generally produced by injection machine and mold injection, then demolded and cooled, but due to thermal expansion and cold shrinkage, the size of plastic products will change after cooling, so the shrinkage ratio is generally scaled out before designing the mold, and then the mold is opened.

[0003] But some local places, reference Figure 7 The enlarged area, due to the incoherence of shrinkage and local tension, the shrinkage ratio is not uniform, so that the two "ears" shrink inward, and some local sizes are found to be out of tolerance after production measurement, causing product scrap and affecting the qualified rate, and the mold structure space is limited, and the product shrinkage deformation cannot be used for secondary shaping on the mold. SUMMARY

[0004] To solve the above technical problems, the utility model adopts one technical scheme:

[0005] A plastic product shaping fixture, comprising a rack body, a pressing part and a jig part mounted on the rack body;

[0006] The pressing part comprises a driving element and a pressing plate provided at the output end of the driving element, and at least four guide columns are further provided on the rack body, a first elastic element is sleeved on the guide column, one end of the first elastic element abuts against the rack body, and the other end abuts against the guide column, when the driving element drives the pressing plate to move downward / upward, the first elastic element buffers / rebounds the pressing plate;

[0007] The jig part comprises a bottom plate sliding on the rack body and a plurality of jigs provided on the bottom plate;

[0008] The jig comprises a profiling block and a shaping block rotating in the profiling block, and a second elastic element abutting against the shaping block is further provided in the profiling block.

[0009] Further, the rack body comprises at least two support plates and at least four support rods provided between the two support plates, the four support rods are uniformly arranged, the support rods form a space between the support plates, and the pressing part and the jig part are located in the space.

[0010] Further, a groove accommodating the shaping block is provided in the profiling block, an inclined surface inclined to the vertical direction of the shaping block is provided in the groove, and the inclined surface is used to limit the rotating position of the shaping block.

[0011] Further, the inclined angle of the inclined surface is 5-20°.

[0012] Further, the support plate is further provided with a sliding rail, and the bottom plate slides on the sliding rail.

[0013] Further, the sliding rail is further provided with a blocking member at the end of the sliding rail, and the blocking member is used for blocking the bottom plate from sliding out.

[0014] Further, the first elastic element and the second elastic element are springs, and the driving element is an oil cylinder.

[0015] The utility model discloses beneficial effects:

[0016] 1, the utility model discloses a product after stripping is sleeved into the profiling block and uses the pressing plate to press into the product, and the sizing block supports the shrinkage area outward, avoids the size shrinkage to the inside, improves the size precision, improves the qualified rate.

[0017] 2, the utility model discloses a plurality of products are placed at a time, and the pressing plate oil cylinder is pressed down, avoids the artificial pressure of being not consistent, and wireless artificial participation reduces the labor cost. DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the structure schematic diagram of the utility model compacting part;

[0020] Figure 3 It is the structure schematic diagram of the utility model jig part;

[0021] Figure 4 It is the structure schematic diagram of the utility model jig;

[0022] Figure 5 It is the structure schematic diagram of the utility model jig;

[0023] Figure 6 It is the product section schematic diagram of the utility model;

[0024] Figure 7 It is the utility model Figure 6 The enlarged schematic diagram of partial A;

[0025] The marks of each part in the drawings are as follows:

[0026] 1, rack body;11, support plate;12, support rod;13, sliding rail;14, blocking member;2, compacting part;21, driving element;22, pressing plate;23, guide column;24, first elastic element;3, jig part;31, bottom plate;32, jig;321, profiling block;322, sizing block;323, second elastic element;4, oil pump. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figures 1 to 7 As shown, a shaping fixture for plastic products includes a frame body 1 and a clamping part 2 and a fixture part 3 mounted on the frame body 1. Specifically, the frame body 1 includes at least two sets of support plates 11 and at least four sets of support rods 12 disposed between the two sets of support plates 11. The four sets of support rods 12 are evenly distributed, forming a space between the support plates 11. The clamping part 2 and the fixture part 3 are located within the space. Specifically, the support plate 11 is also provided with a slide rail 13, and the base plate 31 slides on the slide rail 13. The end of the slide rail 13 is also provided with a blocking member 14, which is used to prevent the base plate 31 from sliding out.

[0030] The clamping part 2 includes a driving element 21 and a pressure plate 22 with the output end of the driving element 21. The frame body 1 is also provided with at least four sets of guide posts 23. A first elastic element 24 is sleeved on each guide post 23. One end of the first elastic element 24 abuts against the frame body 1, and the other end abuts against the guide post 23. When the driving element 21 drives the pressure plate 22 to move downwards / upwards, the first elastic element 24 buffers / rebounds the pressure plate 22. Specifically, the driving element 21 is a hydraulic cylinder. Specifically, the first elastic element 24...

[0031] The fixture part 3 includes a base plate 31 that slides on the frame body 1 and a plurality of fixtures 32 disposed on the base plate 31. Each fixture 32 includes a contour block 321 and a shaping block 322 that rotates within the contour block 321. The contour block 321 also has a second elastic element 323 that abuts against the shaping block 322. Specifically, the contour block 321 has a groove for accommodating the shaping block 322, and the groove has an inclined surface that is perpendicular to the shaping block 322. The inclined surface is used to limit the rotational position of the shaping block 322. Preferably, the inclination angle of the inclined surface is 15°. Specifically, the second elastic element 323 is a spring.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A plastic product shaping jig characterized by comprising: The rack body (1) and the pressing part (2) and the jig part (3) mounted on the rack body (1); The pressing part (2) comprises a driving element (21) and a pressing plate (22) provided at the output end of the driving element (21), and at least four guide columns (23) are further provided on the rack body (1), a first elastic element (24) is sleeved on the guide column (23), one end of the first elastic element (24) abuts against the rack body (1), and the other end abuts against the guide column (23), when the driving element (21) drives the pressing plate (22) to move downward / upward, the first elastic element (24) buffers / returns the pressing plate (22); The jig part (3) comprises a bottom plate (31) sliding on the rack body (1) and a plurality of jigs (32) provided on the bottom plate (31); The jig (32) comprises a profiling block (321) and a shaping block (322) rotating in the profiling block (321), and a second elastic element (323) abutting against the shaping block (322) is further provided in the profiling block (321).

2. The plastic product shaping jig according to claim 1, wherein: The rack body (1) comprises at least two groups of support plates (11) and at least four groups of support rods (12) provided between the two groups of support plates (11), the four groups of support rods (12) are uniformly arranged, the support rods (12) form a space between the support plates (11), and the pressing part (2) and the jig part (3) are located in the space.

3. The plastic product shaping jig according to claim 1, wherein: The profiling block (321) is provided with a groove accommodating the shaping block (322), and an inclined surface inclined to the vertical direction of the shaping block (322) is provided in the groove, and the inclined surface is used for limiting the rotating position of the shaping block (322).

4. The plastic product shaping jig according to claim 3, wherein: The inclination angle of the inclined surface is 5-20°.

5. The plastic product shaping jig according to claim 2, wherein: The support plate (11) is further provided with a sliding rail (13), and the bottom plate (31) slides on the sliding rail (13).

6. The plastic product shaping jig according to claim 5, wherein: The sliding rail (13) is further provided with a blocking member (14), and the blocking member (14) is used for blocking the bottom plate (31) from sliding out.

7. The plastic product shaping jig according to claim 1, wherein: The first elastic element (24) and the second elastic element (323) are springs, and the driving element (21) is an oil cylinder.

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