Auxiliary shaping device for injection molding product

Abstract

The utility model provides an auxiliary shaping device for injection molding products, and relates to the technical field of injection molding. A lead screw is rotationally connected to the bottom frame in the vertical direction through a bearing, a hexagonal movable part is connected to the lead screw, six sets of connecting rods are annularly arranged on the movable part, the lower ends of the connecting rods are hinged to the six side edges of the movable part respectively, the upper ends of the connecting rods are each hinged to a sliding block, and sliding grooves are formed in the two sides of each sliding block. The sliding block is connected to a sliding way composed of two sliding rods in a sliding mode through the sliding groove. By arranging a rotating handle and a slide way, before use, according to the radius of an injection molding product, the position of a movable part on the lead screw is adjusted by rotating the lead screw through an adjusting wrench, the radius of a circular ring formed by six groups of slide blocks on the slide way is adjusted through a connecting rod, and the injection molding product is supported on the side wall of a rotating drum; the problem of shrinkage deformation of the product caused by cooling under the condition of large temperature difference after the product is just taken out of the injection molding machine is avoided; the problem that the radius is reduced due to shrinkage during cooling of an existing annular injection molding product is solved.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding technology, and more specifically, it relates to an auxiliary shaping device for injection molded products. Background Technology

[0002] During the injection molding process of ring-shaped products, when the product is removed from the injection molding equipment for subsequent processing, temperature changes can cause uneven shrinkage or deformation of the material. This can alter the product's appearance, post-molding dimensions, and certain installation structures, ultimately affecting its performance. Therefore, it is necessary to assist in supporting and positioning the product during molding. Traditional solutions typically use support columns, but adjusting support columns alone is cumbersome for injection molded products of different sizes. Furthermore, support columns can only support a few points on the product, leaving unsupported areas to shrink slightly inward, reducing the efficiency of the molding process. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an auxiliary shaping device for injection molded products, thereby solving the problem of radius reduction caused by shrinkage during cooling of existing annular injection molded products.

[0004] This utility model provides an auxiliary shaping device for injection molded products, which is achieved by the following specific technical means:

[0005] An auxiliary shaping device for injection molded products includes a base frame; a lead screw is rotatably connected to the base frame via bearings in the vertical direction, and a hexagonal movable component is connected to the lead screw. Six sets of connecting rods are arranged around the movable component, with the lower ends of the connecting rods hinged to the six sides of the movable component, and the upper ends of each connecting rod hinged to a slider. Sliders have grooves on both sides of the sliders, and the sliders are slidably connected to a slide rail composed of two sliding rods through the grooves. There are six sets of slide rails, which diverge and converge at the center of a connecting plate. The lead screw is rotatably connected to the bottom of the connecting plate. A column is fixedly connected above the slider, and a rotating cylinder is rotatably connected to the column via a thrust bearing. A bracket is provided at the upper end of the column, and the lower end of the bracket is fixed to the slider. The end of the slide rail away from the connecting plate is fixedly connected to a rotating ring, and a set of drive wheels is rotatably connected to the outer side of the rotating ring. A fixed seat ring is provided on the outer side of the rotating ring, and the two sides of the fixed seat ring are welded to the base frame. A limiting pin is threadedly connected to the base frame at the height of the rotating cylinder, and the head of the limiting pin is fitted with an anti-slip rubber block.

[0006] Furthermore, the lead screw is provided with a handle, and an insertion hole is provided on the handle along the radial direction, into which an adjusting wrench is inserted.

[0007] Furthermore, a rotating shaft is fixedly connected to the center of the bottom of the drive wheel. The rotating shaft is fixedly connected to the rotating shaft of the motor. The motor is fixedly mounted on the base frame via a base, and the rotating shaft is supported by a limiting bushing.

[0008] Furthermore, two sets of follower wheels are also rotatably connected to the outer side of the rotating ring. The upper and lower sides of the follower wheels are rotatably connected to the side support plate, and the side support plate is fixedly connected to the fixed seat ring.

[0009] Furthermore, the central axis of the limiting pin is parallel to the plane containing the rotating ring and the fixed seat ring, and the central axis of the limiting pin is perpendicular to the central axis of the rotating ring.

[0010] Furthermore, the two sets of follower wheels are symmetrical about the line connecting the center of the rotating ring and the center of the fixed seat ring, and the drive wheel is located on the extension line of the line connecting the center of the rotating ring and the center of the fixed seat ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model, by setting a rotating handle and a slide, allows for adjustment of the position of the movable part on the screw by rotating the screw with an adjusting wrench according to the radius of the injection molded product before use. The size of the radius of the six sets of sliders forming a ring on the slide is adjusted by the connecting rod, thus supporting the injection molded product on the side wall of the rotating drum. This avoids the problem of product shrinkage and deformation caused by cooling under large temperature differences after the product has just been taken out of the injection molding machine.

[0013] 2. This utility model sets up a rotating cylinder, on which the annular injection molded product is supported. The motor drives the drive wheel to rotate, and the drive wheel and two follower wheels limit the rotation of the rotating ring. The rotating ring is driven to rotate around the lead screw, so that the rotating cylinder rotates inside the injection molded product. This prevents the part of the injection molded product not supported by the cylinder from shrinking inward, thereby reducing the extent of cooling deformation of the injection molded product. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention.

[0015] Figure 2 This is a side view of the present invention.

[0016] Figure 3 This is a top view of the present invention.

[0017] Figure 4 This is a structural schematic diagram of the internal support mechanism of this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0019] 1. Base frame; 2. Lead screw; 3. Rotary handle; 4. Adjusting wrench; 5. Moving part; 6. Connecting rod; 7. Slider; 8. Column; 9. Rotary drum; 10. Bracket; 11. Slide rail; 12. Connecting plate; 13. Rotating ring; 14. Drive wheel; 15. Rotating shaft; 16. Motor; 17. Limiting bushing; 18. Follower wheel; 19. Side support plate; 20. Fixed seat ring; 21. Limiting pin; 22. Anti-slip rubber block. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] Example:

[0022] As attached Figure 1 To be continued Figure 4 As shown:

[0023] This utility model provides an auxiliary shaping device for injection molded products, including a base frame 1; a lead screw 2 is rotatably connected to the base frame 1 in the vertical direction via bearings, and a hexagonal movable part 5 is connected to the lead screw 2. Six sets of connecting rods 6 are arranged around the movable part 5, and the lower ends of the connecting rods 6 are respectively hinged to the six sides of the movable part 5. Each connecting rod 6 has a slider 7 hinged to its upper end. The slider 7 has grooves on both sides, and the slider 7 is slidably connected to a slide rail 11 composed of two sliding rods through the slide rails. There are six sets of slide rails 11, which diverge and converge at the center of a connecting plate 12. The bottom is connected to the lead screw 2; a column 8 is fixedly connected above the slider 7, and a rotating drum 9 is rotatably connected to the column 8 through a thrust bearing. A bracket 10 is set at the upper end of the column 8, and the lower end of the bracket 10 is fixed to the slider 7; the end of the slide 11 away from the connecting plate 12 is fixedly connected to the rotating ring 13, and a set of drive wheels 14 are rolledly connected to the outside of the rotating ring 13; a fixed seat ring 20 is set on the outside of the rotating ring 13, and the two sides of the fixed seat ring 20 are welded to the base frame 1; a limit pin 21 is threadedly connected to the base frame 1 at the height of the rotating drum 9, and the pin head of the limit pin 21 is fitted with an anti-slip rubber block 22.

[0024] Among them, such as Figure 1 As shown, a rotating handle 3 is provided on the lead screw 2, and an insertion hole is provided on the rotating handle 3 along the radial direction. An adjusting wrench 4 is inserted into the insertion hole. Before use, according to the radius of the injection molded product, the lead screw 2 is rotated by adjusting the wrench 4 to adjust the position of the movable part 5 on the lead screw 2. The radius of the six sets of sliders 7 formed by the connecting rod 6 is adjusted to support the injection molded product on the side wall of the rotating drum 9, so as to avoid the problem of product shrinkage and deformation caused by cooling under large temperature difference after the product is taken out of the injection molding machine.

[0025] Among them, such as Figure 1 As shown, a rotating shaft 15 is fixedly connected to the center of the bottom of the drive wheel 14. The rotating shaft 15 is fixedly connected to the shaft of the motor 16. The motor 16 is fixedly mounted on the base frame 1 via a base, and the rotating shaft 15 is supported by a limiting bushing 17. Figure 3As shown, two sets of follower wheels 18 are also rolledly connected to the outer side of the rotating ring 13. The upper and lower sides of the follower wheels 18 are rotatably connected to the side support plate 19, and the side support plate 19 is fixedly connected to the fixed seat ring 20. The two sets of follower wheels 18 are symmetrical about the line connecting the center of the rotating ring 13 and the center of the fixed seat ring 20, and the drive wheel 14 is located on the extension line of the line connecting the center of the rotating ring 13 and the center of the fixed seat ring 20. After the annular injection molded product is supported on the rotating cylinder 9, the drive wheel 14 is driven to rotate by the motor 16, and the rotating ring 13 is limited and supported by the drive wheel 14 and the two follower wheels 18. The rotating ring 13 is driven to rotate around the lead screw 2, so that the rotating cylinder 9 rotates inside the injection molded product to prevent the part of the injection molded product not supported by the cylinder 9 from shrinking inward, thereby reducing the amplitude of the cooling deformation of the injection molded product.

[0026] Among them, such as Figure 3 As shown, the central axis of the limiting pin 21 is parallel to the plane where the rotating ring 13 and the fixed seat ring 20 are located, and the central axis of the limiting pin 21 is perpendicular to the central axis of the rotating ring 13. Tighten the limiting pin 21 on the base frame 1 so that the anti-slip rubber block 22 sleeved on the pin head of the limiting pin 21 abuts against the outer wall of the injection molded product and forms a certain pre-tightening force, so as to prevent the product from being rotated by the rotating drum 9 and rotating together, and the rotating drum 9 does not play a supporting and limiting role for the product.

[0027] The specific usage and function of this embodiment are as follows:

[0028] In this invention, firstly, based on the radius of the injection-molded product, the screw 2 is rotated by adjusting the wrench 4 to adjust the height position of the movable part 5 on the screw 2. The radius of the ring formed by the six sets of sliders 7 is adjusted by the connecting rod 6. The injection-molded product is supported on the side wall of the rotating cylinder 9. After the adjustment is completed, the adjusting handle 4 is pulled out from the insertion hole of the rotating handle 3. The limiting pin 21 is tightened on the base frame 1 so that the anti-slip rubber block 22 fitted on the pin head of the limiting pin 21 abuts against the outer wall of the injection-molded product and forms a certain pre-tightening force. The drive wheel 14 is driven to rotate by the motor 16, and the rotating ring 13 is limited and supported by the drive wheel 14 and the two follower wheels 18. The rotating ring 13 is driven to rotate around the screw 2, so that the rotating cylinder 9 is supported and rotated inside the injection-molded product until the injection-molded product is completely cooled.

[0029] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. An auxiliary shaping device for injection molded products, characterized in that: The system includes a base frame (1); a lead screw (2) is rotatably connected to the base frame (1) in the vertical direction via bearings. A hexagonal movable part (5) is connected to the lead screw (2). Six sets of connecting rods (6) are arranged around the movable part (5). The lower ends of the connecting rods (6) are respectively hinged to the six sides of the movable part (5), and each upper end is hinged to a slider (7). Slide grooves are opened on both sides of the slider (7). The slider (7) is slidably connected to a slide rail (11) composed of two slide rods through the slide grooves. There are six sets of slide rails (11). The slide rails (11) are divergent and converge at the center of the connecting plate (12). The lead screw (2) is rotatably connected to the bottom of the connecting plate (12). The slider (7) A column (8) is fixedly connected to the top, and a rotating cylinder (9) is rotatably connected to the column (8) via a thrust bearing. A bracket (10) is set at the upper end of the column (8), and the lower end of the bracket (10) is fixed to the slider (7). The end of the slide (11) away from the connecting plate (12) is fixedly connected to the rotating ring (13), and a set of drive wheels (14) are tumbled on the outside of the rotating ring (13). A fixed seat ring (20) is set on the outside of the rotating ring (13), and the two sides of the fixed seat ring (20) are welded to the base frame (1). A limiting pin (21) is threadedly connected to the base frame (1) at the height of the rotating cylinder (9), and the head of the limiting pin (21) is fitted with an anti-slip rubber block (22).

2. The auxiliary shaping device for injection molded products as described in claim 1, characterized in that: The lead screw (2) is provided with a handle (3), and an insertion hole is provided on the handle (3) along the radial direction. An adjusting wrench (4) is inserted into the insertion hole.

3. The auxiliary shaping device for injection molded products as described in claim 1, characterized in that: The drive wheel (14) has a rotating shaft (15) fixedly connected to the bottom center. The rotating shaft (15) is fixedly connected to the rotating shaft of the motor (16). The motor (16) is fixedly mounted on the base frame (1) through the base. The rotating shaft (15) is supported by the limiting bushing (17).

4. The auxiliary shaping device for injection molded products as described in claim 1, characterized in that: Two sets of follower wheels (18) are also rolledly connected to the outer side of the rotating ring (13). The follower wheels (18) are rotatably connected to the side support plate (19) on the upper and lower sides. The side support plate (19) is fixedly connected to the fixed seat ring (20).

5. The auxiliary shaping device for injection molded products as described in claim 1, characterized in that: The central axis of the limiting pin (21) is parallel to the plane where the rotating ring (13) and the fixed seat ring (20) are located, and the central axis of the limiting pin (21) is perpendicular to the central axis of the rotating ring (13).

6. The auxiliary shaping device for injection molded products as described in claim 4, characterized in that: The two sets of follower wheels (18) are symmetrical about the line connecting the center of the rotating ring (13) and the fixed seat ring (20), and the drive wheel (14) is located on the extension line of the line connecting the center of the rotating ring (13) and the fixed seat ring (20).

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