Shaping and correcting device for injection molding product

Abstract

The utility model relates to the field of plastic processing and automatic machinery, in particular to a shaping and correcting device for injection molding products, which comprises a mounting plate, a fixing screw, a connecting rod, a guide rod, a return spring, a sucker, an adjusting component and the like. The bottom of the connecting rod is slidably connected with a guide rod, the bottom of the guide rod is connected with a suction cup, the guide rod is sleeved with a reset spring, one end of the reset spring is connected with the connecting rod, the other end of the reset spring is connected with the top of the suction cup, and the top of the connecting rod is connected with an adjusting assembly used for adjusting the distance between the end of the suction cup and the mounting plate. Through the mounting plate and the suction cup, when an injection molding product is just taken out of a mold, the suction cup is tightly attached to the surface of the product through air exhaust equipment, so that the shape of the product is fixed instantly, bending stress of the product is overcome, and the purpose of timely correction is achieved.

Description

Technical Field

[0001] The utility model relates to the fields of plastic processing and automated machinery, in particular to a shaping and correction device for injection molded products. Background Art

[0002] Injection molded products, an integral part of modern industry, are widely used in a variety of fields, including automotive, electronics, home furnishings, and healthcare. These products are manufactured through injection molding, where molten thermoplastic is injected into a mold cavity and then solidified after cooling to create a product with a specific shape and size. Due to their high production efficiency, low cost, and strong reproducibility, injection molded products have become the material of choice for large-scale production. From precision electronic component housings to large automotive parts, the diversity and functionality of injection molded products meet the needs of diverse industries.

[0003] However, the production of injection molded products, especially sheet-shaped ones, often encounters a thorny issue: uneven temperature distribution leading to overall bending of the product upon removal from the mold. This is primarily due to inaccurate mold temperature control during the injection molding process and the uneven shrinkage characteristics of the plastic material itself during cooling. Currently, the industry's main approach to correcting this type of bending deformation relies on traditional physical methods: bundling multiple bent parts together and applying external pressure to flatten the entire product. While this method can improve product flatness to a certain extent, it is cumbersome and inefficient.

[0004] The existing leveling process has a significant drawback: between the time the part is removed from the mold and the time the bundling correction is performed, the plastic material of the injection molded part gradually solidifies, reducing the mobility of its molecular chains. This makes the subsequent leveling process more difficult and time-consuming. Furthermore, the leveling effect is less than ideal, as the optimal time for leveling is actually when the part is freshly removed from the mold and in a semi-cured state. At this stage, the plastic material's molecular chains still have some mobility and are more sensitive to external forces, making the leveling process most effective. Utility Model Content

[0005] In order to overcome the shortcoming of poor leveling effect caused by limited timing, the utility model provides a timely shaping and correction device for injection molded products.

[0006] A shaping and correction device for injection molded products comprises a mounting plate, a fixing screw, a connecting rod, a slider, a guide rod, a return spring, a suction cup, an air inlet and an adjustment component. The mounting plate is mounted on a robotic arm, and the robotic arm is used to take out the injection molded products in the mold. The mounting plate is threadedly connected with a fixing screw, a slide groove is opened in the fixing screw, the connecting rod is slidably connected to the fixing screw, the side of the connecting rod is connected to a slider, the slider is slidably connected in the slide groove, and is used to limit the rotation of the connecting rod, the bottom of the connecting rod is slidably connected to the guide rod, the bottom of the guide rod is connected to the suction cup, a return spring is sleeved on the guide rod, one end of the return spring is connected to the connecting rod, and the other end is connected to the top of the suction cup, the suction cup is provided with an air inlet, and multiple air inlets are commonly connected to an exhaust device. The top of the connecting rod is connected with an adjustment component, and is used to adjust the distance between the end of the suction cup and the mounting plate.

[0007] Optionally, the adjustment assembly includes an adjusting rod, a bearing, a positioning ring and a block. The adjusting rod is rotatably connected to the connecting rod, the bottom of the adjusting rod is connected to the inner ring of the bearing, the outer ring of the bearing is connected to the connecting rod, the top of the fixing screw is connected to the positioning ring, and multiple slots are opened vertically on the positioning ring. The side of the adjusting rod is connected to a block, and the diameter of the block is equal to the width of the slot.

[0008] Optionally, an operating knob is further included. The top of the adjusting rod is connected to the operating knob, and irregular grooves are provided on the surface of the operating knob.

[0009] Optionally, a compression spring is further included. The adjustment rod is sleeved with a compression spring. The upper end of the compression spring is pressed and fitted with the bottom of the operating knob, and the lower end of the compression spring is pressed and fitted with the top of the positioning ring.

[0010] Optionally, a handle is further included, and the mounting plate is connected to the handle for moving the mounting plate.

[0011] Optionally, a protective shell is further included, which is sleeved on the mounting plate and covers the adjustment component and the operating knob.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. By installing the plate and the suction cup, when the injection molded product is just taken out of the mold, the suction cup is pressed against the surface of the product using the vacuum equipment, thereby instantly fixing the shape of the product and overcoming its bending stress, achieving the purpose of timely correction.

[0014] 2. By adjusting the design of the components, the distance between the suction cup and the mounting plate can be flexibly adjusted to ensure that the suction cup can fit closely to the surface of the product, thereby improving the versatility and adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the mounting plate and handle of the utility model.

[0017] Figure 3 This is a sectional view of the three-dimensional structure of the fixing screw and the connecting rod of the utility model.

[0018] Figure 4 This is a sectional view of the three-dimensional structure of the positioning ring of the utility model.

[0019] Figure 5 This is a schematic diagram of the connection structure of the slider and the connecting rod of the utility model.

[0020] Figure 6 This is a schematic diagram of the connection structure of the adjustment rod, operating knob and compression spring of the utility model.

[0021] Explanation of the accompanying drawings: 1_mounting plate, 2_fixing screw, 3_connecting rod, 301_slider, 302_slide groove, 4_guide rod, 5_reset spring, 6_suction cup, 601_air inlet, 7_adjusting rod, 8_bearing, 9_positioning ring, 10_slot, 11_block, 12_operating knob, 13_groove, 14_compression spring, 15_handle, 16_protective shell. DETAILED DESCRIPTION

[0022] The following description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0023] Example: A plastic correction device for injection molded products, such as Figures 1-6 As shown, it includes a mounting plate 1, fixing screws 2, connecting rods 3, sliders 301, guide rods 4, return springs 5, suction cups 6, air inlets 601 and adjustment components. The mounting plate 1 is mounted on a robotic arm, which is used to take out the injection molded product from the mold. The mold is divided into a fixed part and a movable part. Usually, the injection molded product will stay on the mold of the fixed part. A plurality of fixing screws 2 are threadedly connected to the mounting plate 1. A sliding groove 302 is opened in the fixing screws 2. The connecting rod 3 is slidably connected to the fixing screws 2. The side of the connecting rod 3 is connected to the slider 301. The slider 3 01 is slidably connected in the slide groove 302, which is used to limit the rotation of the connecting rod 3. The bottom of the connecting rod 3 is slidably connected to the guide rod 4, and the bottom of the guide rod 4 is connected to the suction cup 6. A return spring 5 is provided on the guide rod 4. One end of the return spring 5 is connected to the connecting rod 3, and the other end is connected to the top of the suction cup 6. The suction cup 6 is provided with an air inlet 601. Multiple air inlets 601 are commonly connected to an exhaust device, which can draw air through the suction cup 6 to form a negative pressure on the suction cup 6. An adjustment component is connected to the top of the connecting rod 3 to adjust the distance between the end of the suction cup 6 and the mounting plate 1.

[0024] The adjusting assembly includes an adjusting rod 7, a bearing 8, a positioning ring 9 and a block 11. The adjusting rod 7 is rotatably connected to the connecting rod 3. The bottom of the adjusting rod 7 is connected to the inner ring of the bearing 8, and the outer ring of the bearing 8 is connected to the connecting rod 3. The top of the fixing screw 2 is connected to the positioning ring 9. There are multiple slots 10 on the positioning ring 9 in the vertical direction. The side of the adjusting rod 7 is connected to the block 11. The diameter of the block 11 is equal to the width of the slot 10.

[0025] After the injection molded product is demoulded, the robotic arm is responsible for removing it. At this time, the injection molded product has been separated from the movable mold. Subsequently, the mounting plate 1 drives the suction cup 6 to approach and contact the injection molded product. Once in contact, the exhaust device is immediately turned on to extract the air in the suction cup 6 through the air inlet 601, so that it is closely attached to the surface of the injection molded product. Since multiple suction cups 6 are configured on the mounting plate 1, it ensures that the surface of the injection molded product is evenly stressed and the overall state is maintained in a straight state consistent with the mounting plate 1, effectively overcoming the bending stress of the injection molded product itself. Wait until the injection molded product is completely cooled, or move it into the cooling pool to ensure that it is cooled and shaped in a straight state. In this way, the shape of the injection molded product is fixed during the material removal process, and no subsequent correction steps are required. Finally, the exhaust device is turned off, and the robotic arm places the cooled and shaped injection molded product into the collection area.

[0026] When the suction cup 6 contacts the injection molded product, the suction cup 6 squeezes the injection molded product and then fits tightly. However, some injection molded products have been bent after being separated from the movable mold. In this case, there is a sequence in the contact between the suction cup 6 and the injection molded product. The suction cup 6 that contacts first will slide toward the fixing screw 2, so that the guide rod 4 slides in the connecting rod 3 and compresses the reset spring 5. After all the suction cups 6 are in contact with the injection molded product, the injection molded product is taken out, and the reset spring 5 rebounds. All the suction cups 6 are in the same plane. When there is a height difference in the design of the injection molded product and the product itself is stepped, the staff needs to rotate the adjustment rod 7. Drive the inner ring of the bearing 8 to rotate, the block 11 disengages from the slot 10 of the positioning ring 9, pushes and pulls the adjusting rod 7 up and down, and then rotates the adjusting rod 7, the block 11 re-matches with the slot 10, thereby adjusting the distance between the suction cup 6 and the mounting plate 1 through the connecting rod 3. When the connecting rod 3 slides downward in the fixing screw 2, the slider 301 slides along the slide groove 302 to ensure that the connecting rod 3 moves vertically. Finally, when the connecting rod 3 moves, the reset spring 5 pushes the suction cup 6. The suction cups 6 are in different planes and have adapted to the shape of the injection molded product to ensure that the product quality of the stepped injection molded product can be guaranteed when the injection molded product is taken out.

[0027] like Figure 4 As shown, an operating knob 12 is also included. The top of the adjusting rod 7 is connected to the operating knob 12, and an irregular groove 13 is provided on the surface of the operating knob 12.

[0028] The groove 13 on the surface of the operating knob 12 increases the friction between the operator and the operating knob 12 when the knob is turned, making it more convenient to rotate the adjusting rod 7.

[0029] like Figure 6 As shown, a compression spring 14 is also included. The adjustment rod 7 is sleeved with the compression spring 14. The upper end of the compression spring 14 is squeezed and fitted with the bottom of the operating knob 12, and the lower end of the compression spring 14 is squeezed and fitted with the top of the positioning ring 9.

[0030] The compression spring 14 remains in a compressed state, providing an upward supporting force for the adjustment rod 7, ensuring a firm connection between the block 11 and the slot 10. During operation, the block 11 will not detach from the slot 10, thus maintaining the stability of the working process.

[0031] like Figure 2 As shown, a handle 15 is also included. The mounting plate 1 is connected to the handle 15 for moving the mounting plate 1.

[0032] When installing and removing the installation plate 1 , the handle 15 can facilitate workers to move the installation plate 1 .

[0033] like Figure 1 As shown, it also includes a protective shell 16, which is sleeved on the mounting plate 1 and covers the adjustment component and the operating knob 12.

[0034] The protective shell 16 can cover the operating knob 12. When the robotic arm is working, the operating knob 12 will not come into contact with foreign objects, thereby ensuring that the operating knob 12 will not rotate accidentally, thereby maintaining the stable state of the adjustment rod 7.

[0035] After the molded product is demolded, the robotic arm removes it, and the movable mold is now separated from the molded product. Mounting plate 1 drives suction cup 6 toward the molded product. When suction cup 6 contacts the molded product, the vacuum device is activated, extracting air from suction cup 6 through air inlet 601, keeping suction cup 6 in close contact with the surface of the molded product. This ensures balanced force on the molded product and maintains a straight position to overcome bending stress. If the molded product has a height difference or a stepped design, the operator can use the irregular grooves 13 on the surface of operating knob 12 to more easily rotate adjustment lever 7. Rotation of the inner ring of bearing 8 disengages block 11 from slot 10 of positioning ring 9. Adjustment lever 7 is then pulled up and down to adjust its height. Adjustment lever 7 is then rotated again to reengage block 11 in slot 10. Compression spring 14 remains compressed, ensuring a secure connection between block 11 and slot 10. Connecting rod 3 allows the distance between each suction cup 6 and mounting plate 1 to be adjusted to the shape of the molded product.

[0036] Please check the logical errors and sentence incoherence in the text above and point out the logical errors and incoherent sentences.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plastic correction device for injection molded products, characterized in that: The invention comprises a mounting plate (1), a fixing screw (2), a connecting rod (3), a slider (301), a guide rod (4), a return spring (5), a suction cup (6), an air inlet (601) and an adjustment component. The mounting plate (1) is mounted on a robot arm, and the robot arm is used to take out the injection molded product in the mold. The mounting plate (1) is threadedly connected with a fixing screw (2), a sliding groove (302) is opened in the fixing screw (2), the connecting rod (3) is slidably connected to the fixing screw (2), the side of the connecting rod (3) is connected with a slider (301), and the slider (301) is slidably connected to the fixing screw (2). The slide groove (302) is used to limit the rotation of the connecting rod (3). The bottom of the connecting rod (3) is slidably connected to a guide rod (4). The bottom of the guide rod (4) is connected to a suction cup (6). A return spring (5) is sleeved on the guide rod (4). One end of the return spring (5) is connected to the connecting rod (3), and the other end is connected to the top of the suction cup (6). The suction cup (6) is provided with an air inlet (601). The multiple air inlets (601) are commonly connected to an exhaust device. The top of the connecting rod (3) is connected to an adjustment component for adjusting the distance between the end of the suction cup (6) and the mounting plate (1).

2. A plastic surgery correction device for injection molded products according to claim 1, characterized in that: The adjusting assembly includes an adjusting rod (7), a bearing (8), a positioning ring (9) and a clamping block (11). The adjusting rod (7) is rotatably connected to the connecting rod (3). The bottom of the adjusting rod (7) is connected to the inner ring of the bearing (8). The outer ring of the bearing (8) is connected to the inside of the connecting rod (3). The top of the fixing screw (2) is connected to the positioning ring (9). A plurality of clamping grooves (10) are vertically opened on the positioning ring (9). The side of the adjusting rod (7) is connected to the clamping block (11). The diameter of the clamping block (11) is equal to the width of the clamping groove (10).

3. A plastic surgery correction device for injection molded products according to claim 2, characterized in that: It also includes an operating knob (12), the top of the regulating rod (7) is connected to the operating knob (12), and a groove (13) is provided on the surface of the operating knob (12).

4. A plastic surgery correction device for injection molded products according to claim 3, characterized in that: It also includes a compression spring (14), which is sleeved on the adjustment rod (7), the upper end of the compression spring (14) is pressed and matched with the bottom of the operating knob (12), and the lower end of the compression spring (14) is pressed and matched with the top of the positioning ring (9).

5. A plastic surgery correction device for injection molded products according to claim 4, characterized in that: It also includes a handle (15), which is connected to the mounting plate (1) and is used to move the mounting plate (1).

6. A plastic surgery correction device for injection molded products according to claim 5, characterized in that: It also includes a protective shell (16), which is sleeved on the mounting plate (1) and covers the adjustment component and the operating knob (12).

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