Auxiliary shaping mold for plastic corrugated pipe

Abstract

The utility model relates to the field of production and processing, and discloses a plastic corrugated pipe auxiliary shaping mold which comprises a mounting plate, the top end of the mounting plate is fixedly connected with mounting frames, the inner walls of the mounting frames are rotatably connected with mounting blocks, the number of the mounting blocks and the number of the mounting frames are both two, and the mounting blocks are fixedly connected with the mounting frames. An outer mold is fixedly connected to the ends, close to each other, of the two mounting blocks, an inner mold is arranged in the outer mold, a rotating assembly is arranged outside the mounting block on the left side and the mounting frame on the left side, the rotating assembly comprises a gear ring, and the inner wall of the gear ring is fixedly connected with the outer wall of the mounting block; and a feeding assembly is arranged outside the outer mold. According to the plastic injection mold, the rotating assembly and the feeding assembly are used in cooperation, so that when plastic is injected between the inner mold and the outer mold, the inner mold and the outer mold can rotate, plastic injection is not affected, and it is guaranteed that the forming effect of a finally-shaped corrugated pipe is good.

Description

Technical Field

[0001] The utility model relates to the field of production and processing, in particular to an auxiliary shaping die for a plastic corrugated pipe. Background Art

[0002] Plastic bellows auxiliary shaping mold is an important tool used to assist the molding of plastic bellows. It is mainly used in the production process of plastic bellows to help the bellows maintain a stable shape and structure during the molding stage, ensuring the quality and dimensional accuracy of the final product.

[0003] After searching, Chinese patent announcement number: CN216372921U discloses an auxiliary equipment for spiral corrugated pipe production molds, including an operating table, the upper end of the operating table is fixedly connected to a first motor, the output end of the first motor is fixedly connected to an extrusion screw, and the circumferential surface of the extrusion screw is sleeved with an extrusion barrel; a loading barrel, the loading barrel is fixedly connected to the upper end of the circumferential surface of the extrusion barrel; a filtering mechanism, the filtering mechanism is connected to the loading barrel to achieve filtering of the corrugated pipe material; and a stirring device, the stirring device is connected to the loading barrel to achieve stirring of the corrugated pipe material. This device can make the corrugated pipe material more delicate, prevent the corrugated pipe material from having impurities when entering the extrusion barrel, cause material blockage in the extrusion barrel, and affect the molding effect of the corrugated pipe.

[0004] Although the above application document can achieve the effect of making the corrugated pipe material more delicate by changing the quality of the molten plastic, in the actual use process, when the molten plastic is inside the mold, it may move downward due to gravity. In addition, there are many corrugated grooves inside the corrugated pipe mold, and some plastics in the upper corrugated grooves may not be easy to enter, thereby affecting the molding effect. Therefore, a plastic corrugated pipe auxiliary shaping mold is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a plastic bellows auxiliary shaping mold, which aims to improve the problem in the prior art that there may be dead corners that are difficult to enter during the plastic filling process, resulting in poor molding effects.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plastic corrugated pipe auxiliary shaping mold, comprising a mounting plate, the top of the mounting plate is fixedly connected to the mounting bracket, the inner wall of the mounting bracket is rotatably connected to the mounting block, the number of the mounting blocks and the mounting bracket is set to two, and the ends of the two mounting blocks close to each other are fixedly connected to the outer mold, the inner mold is provided inside the outer mold, the left mounting block and the outside of the left mounting bracket are jointly provided with a rotating assembly, the rotating assembly includes a gear ring, the inner wall of the gear ring is fixedly connected to the outer wall of the mounting block, the outside of the outer mold is provided with a feeding assembly, the feeding assembly includes a feeding ring, the inner wall of the feeding ring is rotatably connected to the outer wall of the outer mold, the interior of the mounting block is provided with an anti-deflection assembly, the anti-deflection assembly includes a mounting groove, the mounting groove is opened on the inner wall of the mounting block, the interior of the mounting block is provided with a fixing assembly, and the fixing assembly includes an air pressure chamber.

[0007] As a further description of the above technical solution:

[0008] The gear ring is arranged on the left side of the mounting frame, the left end of the mounting frame is rotatably connected to a gear, the mounting plate is located at the top end of the right end of the left mounting frame and is fixedly connected to a motor, and the output shaft of the motor passes through the inner wall of the left mounting frame and is fixedly connected to the rotating shaft of the gear.

[0009] As a further description of the above technical solution:

[0010] The top of the feeding ring is fixedly connected to a feeding pipe, the inner wall of the feeding ring is provided with a discharge hole, the inner wall of the outer mold is provided with a feeding hole, the bottom end of the feeding ring is fixedly connected to a bracket, and the bottom end of the bracket is fixedly connected to the top of the mounting plate.

[0011] As a further description of the above technical solution:

[0012] The inner wall of the mounting groove is slidably connected to a moving block, and the end of the moving block close to the inner mold is fixedly connected to an airbag 1, the inner wall of the mounting groove is rotatably connected to a turntable, and a slide groove is provided on the end of the turntable close to the moving block, and a control rod is fixedly connected to the end of the moving block close to the turntable, and the control rod is arranged inside the slide groove, and a worm gear is fixedly connected to the outer wall of the turntable, and a worm is rotatably connected to the inner wall of the mounting block, and the rotating shaft of the worm passes through the inner wall of the mounting block.

[0013] As a further description of the above technical solution:

[0014] The air pressure chamber is opened on the inner wall of the mounting groove closer to the outer mold. The inner wall piston of the air pressure chamber is connected to a slide. The end of the slide close to the outer mold is fixedly connected to a screw. The inner wall of the mounting block is fixedly connected to airbag 2. The interior of the airbag 2 is connected to the interior of the air pressure chamber.

[0015] As a further description of the above technical solution:

[0016] The feeding holes are located on the outside of the outer mold, the number of the feeding holes is set to be multiple and arranged in a circumferential manner, and the feeding holes and the discharge holes are located in the same plane.

[0017] As a further description of the above technical solution:

[0018] The initial shape of the airbag 1 is a hemisphere, the interior of the airbag 1 is set to be hollow and filled with gas, and the material of the airbag 1 is set to be rubber.

[0019] As a further description of the above technical solution:

[0020] The shape of the mounting groove is a shape formed by connecting a circular groove and a plurality of rectangular grooves.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the rotating assembly and the feeding assembly are used in conjunction, so that when plastic is added between the inner mold and the outer mold, the inner mold and the outer mold can rotate without affecting the plastic filling, so that the plastic can flow between the inner mold and the outer mold, resulting in fewer dead angles between the inner mold and the outer mold, ensuring that the final bellows has a better molding effect.

[0023] 2. In the present invention, the anti-deviation component and the fixing component are used in conjunction, so that the inner mold and the outer mold can reach a relatively stable state when filling plastic, and ensure that the inner mold is exactly in the center of the outer mold, ensuring that the thickness of the formed corrugated pipe is consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the mounting block, mounting frame and rotating assembly in the present utility model;

[0026] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the overall structure of the present invention;

[0027] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the overall structure of the present invention;

[0028] Figure 5 For this utility model Figure 4 A magnified schematic diagram of the three-dimensional structure of part A;

[0029] Figure 6 It is a schematic cross-sectional view of the three-dimensional structure of the split anti-deviation component, the mounting frame and the mounting block in the present invention.

[0030] Legend:

[0031] 1. Mounting plate; 2. Mounting frame; 3. Mounting block; 4. Outer mold; 5. Inner mold; 6. Rotating assembly; 7. Feeding assembly; 8. Anti-deflection assembly; 9. Fixing assembly; 61. Gear ring; 62. Gear; 63. Motor; 71. Feeding ring; 72. Feeding pipe; 73. Discharge hole; 74. Feeding hole; 75. Bracket; 81. Mounting slot; 82. Moving block; 83. Airbag 1; 84. Turntable; 85. Control lever; 86. Worm gear; 87. Worm; 88. Slide; 91. Air pressure chamber; 92. Slide plate; 93. Screw; 94. Airbag 2. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1 、 Figure 2 and Figure 4 The utility model provides an embodiment: a plastic corrugated pipe auxiliary shaping mold, including a mounting plate 1, the mounting plate 1 is used to be fixed to the table for producing corrugated pipes, the top of the mounting plate 1 is fixedly connected to a mounting bracket 2, the shape of the mounting bracket 2 is a shape formed by connecting a ring and a trapezoid, the inner wall of the mounting bracket 2 is rotatably connected to a mounting block 3, the number of the mounting block 3 and the mounting bracket 2 are both set to two, the two mounting blocks 3 are fixedly connected to the outer mold 4 at one end close to each other, and the inner mold 5 is arranged inside the outer mold 4. By replacing the inner mold 5 with different outer diameters, the distance between the outer mold 4 and the inner mold 5 is changed, thereby achieving the effect of making corrugated pipes of different thicknesses, and through the arrangement of the two mounting brackets 2 and the mounting block 3, it is ensured that the equipment can fix the outer mold 4 and the inner mold 5 through the two ends of the outer mold 4.

[0034] Reference Figure 1 and Figure 2The left mounting block 3 and the left mounting frame 2 are jointly provided with a rotating assembly 6. The rotating assembly 6 includes a gear ring 61. The inner wall of the gear ring 61 is fixedly connected to the outer wall of the mounting block 3. The inner diameter of the gear ring 61 matches the outer diameter of the mounting block 3. The gear ring 61 is arranged on the left side of the mounting frame 2. The left end of the mounting frame 2 is rotatably connected to a gear 62. The gear 62 meshes with the gear ring 61. The mounting plate 1 is located at the top end of the right end of the left mounting frame 2 and is fixedly connected to a motor 63. The output shaft of the motor 63 passes through the inner wall of the left mounting frame 2 and is fixedly connected to the rotating shaft of the gear 62. The position setting of the motor 63 ensures that the output shaft of the motor 63 can drive the gear 62 to rotate, thereby achieving the expected effect.

[0035] Reference Figure 1 、 Figure 3 and Figure 4 The outer mold 4 is provided with a feeding assembly 7, which includes a feeding ring 71. The inner wall of the feeding ring 71 is rotatably connected to the outer wall of the outer mold 4. The feeding ring 71 is in the shape of a circular ring, and a trapezoidal storage groove is provided inside the feeding ring 71. The top of the feeding ring 71 is fixedly connected to a feeding pipe 72. The upper end of the feeding pipe 72 is connected to the feeding device for adding molten plastic to the middle of the outer mold 4 and the inner mold 5. The inner wall of the feeding ring 71 is provided with a discharge hole 73, which is passed through the storage groove. The shape is set so that the molten plastic inside the feeding ring 71 can more easily flow toward the discharge hole 73. The inner wall of the outer mold 4 is provided with a feeding hole 74. The feeding hole 74 is located on the outside of the outer mold 4. The number of the feeding holes 74 is set to be multiple and arranged in a circle. The feeding holes 74 and the discharge holes 73 are in the same plane. The bottom end of the feeding ring 71 is fixedly connected to a bracket 75. The bottom end of the bracket 75 is fixedly connected to the top of the mounting plate 1. The shape of the bracket 75 is a trapezoid with a rounded top.

[0036] Reference Figure 1 、 Figure 5 and Figure 6, an anti-deflection component 8 is provided inside the mounting block 3, and the anti-deflection component 8 includes a mounting groove 81, which is opened on the inner wall of the mounting block 3. The shape of the mounting groove 81 is a shape formed by connecting a circular groove and a plurality of rectangular grooves. The inner wall of the mounting groove 81 is slidably connected with a moving block 82, and the end of the moving block 82 close to the inner mold 5 is fixedly connected with an airbag 1 83. The initial shape of the airbag 1 83 is a hemisphere, and the interior of the airbag 1 83 is set to be hollow and filled with gas. The material of the airbag 1 83 is set to rubber. The shape, material and internal situation of the airbag 1 83 ensure that the airbag 1 83 can be deformed more easily, and the inner wall of the mounting groove 81 is rotatably connected There is a turntable 84, which is arranged in the annular groove area of ​​the mounting groove 81. A slide groove 88 is opened at one end of the turntable 84 close to the moving block 82, and the shape of the slide groove 88 is set to be an arc shape. The end of the moving block 82 close to the turntable 84 is fixedly connected with a control rod 85, and the control rod 85 is arranged inside the slide groove 88. The diameter of the control rod 85 matches the width of the slide groove 88. The outer wall of the turntable 84 is fixedly connected with a worm gear 86, and the inner wall of the mounting block 3 is rotatably connected with a worm 87. The worm 87 is meshed with the worm gear 86, and the rotating shaft of the worm 87 passes through the inner wall of the mounting block 3. There is a large resistance between the rotating shaft of the worm 87 and the mounting block 3. In the absence of external force, the worm 87 cannot rotate.

[0037] Reference Figure 1 、 Figure 4 and Figure 5 , a fixing assembly 9 is provided inside the mounting block 3, and the fixing assembly 9 includes an air pressure chamber 91. The shape of the air pressure chamber 91 is set to be annular. The air pressure chamber 91 is opened on the inner wall of the mounting groove 81 close to the outer mold 4. The positional relationship between the air pressure chamber 91 and the mounting groove 81 is set to ensure that the molten plastic will not adhere to the moving block 82. The inner wall piston of the air pressure chamber 91 is connected to a slide 92. The end of the slide 92 close to the outer mold 4 is fixedly connected to a screw 93. The inner wall of the mounting block 3 is fixedly connected to an air bag 2 94. The interior of the air bag 2 94 is connected to the interior of the air pressure chamber 91. The airbag 2 94 is connected, and the shape of the airbag 2 94 is circular. The interior of the airbag 2 94 is set to be hollow and filled with gas. The material of the airbag 2 94 is set to rubber. Through the shape setting of the airbag 2 94, it is ensured that the airbag 2 94 can contact the outer wall of the inner mold 5 after expansion, and can remain relatively closed. The closed here only means that the molten plastic cannot leave the area between the outer mold 4 and the inner mold 5 from both ends. There is an exhaust device inside the outer mold 4 and the inner mold 5, and this technology is a prior art and can be implemented by technicians in this field, so it will not be described in detail in this case.

[0038] Working principle: When in use, the staff first places the appropriate inner mold 5 inside the outer mold 4, and then the staff rotates the worm 87, so that the worm 87 drives the worm wheel 86 to rotate, thereby causing the turntable 84 to rotate.

[0039] When the turntable 84 rotates, the slide groove 88 is shifted as the turntable 84 rotates, so that the position originally at the same horizontal position as the control rod 85 changes from the outer circle to the inner circle, so that the control rod 85 drives the moving block 82 to move toward the direction close to the inner mold 5.

[0040] When the moving block 82 approaches the inner mold 5, the airbag 1 83 contacts the outer wall of the inner mold 5 and deforms, so that the outer walls of the inner mold 5 with different curvatures can all fit with the airbag 1 83, and since the movement amplitudes of multiple moving blocks 82 are consistent, it can ensure that the inner mold 5 is exactly in the middle of the outer mold 4.

[0041] When the position of the inner mold 5 is fixed, the staff rotates the screw 93 again, so that the screw 93 drives the slide 92 to move toward the side close to the airbag 2 94, so that the gas inside the air pressure chamber 91 enters the airbag 2 94 under the push of the slide 92, thereby causing the airbag 2 94 to expand, so that the inner mold 5 and the outer mold 4 remain relatively closed.

[0042] After maintaining a relatively closed state, the staff starts the relevant equipment to allow the molten plastic to enter the feed pipe 72, so that the molten plastic passes through the discharge hole 73 and the feeding hole 74 and enters the middle area between the inner mold 5 and the outer mold 4.

[0043] At the same time, when adding plastic, the staff starts the motor 63, so that the motor 63 drives the gear 62 to rotate, thereby causing the gear 62 to drive the gear ring 61 to rotate, thereby causing the gear ring 61 to drive the mounting block 3 and the outer mold 4 to rotate. Since the outer mold 4 and the inner mold 5 remain relatively fixed at this time, the inner mold 5 rotates accordingly, so it can be ensured that the molten plastic can flow between the inner mold 5 and the outer mold 4 during the process of adding plastic, thereby preventing the occurrence of dead corners that the molten plastic cannot reach, and ensuring the molding effect of the corrugated pipe after molding.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. 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 corrugated pipe auxiliary shaping die, comprising a mounting plate (1), characterized in that: The top of the mounting plate (1) is fixedly connected to a mounting frame (2), and the inner wall of the mounting frame (2) is rotatably connected to a mounting block (3). The number of the mounting blocks (3) and the mounting frame (2) is set to two. The ends of the two mounting blocks (3) close to each other are fixedly connected to an outer mold (4), and an inner mold (5) is provided inside the outer mold (4). The left mounting block (3) and the outside of the left mounting frame (2) are jointly provided with a rotating assembly (6), and the rotating assembly (6) includes a gear ring (61). The inner wall of the gear ring (61) is connected to the outer wall of the gear ring (61). The outer wall of the mounting block (3) is fixedly connected, a feeding assembly (7) is provided on the outside of the outer mold (4), the feeding assembly (7) includes a feeding ring (71), the inner wall of the feeding ring (71) is rotatably connected to the outer wall of the outer mold (4), an anti-deflection assembly (8) is provided inside the mounting block (3), the anti-deflection assembly (8) includes a mounting groove (81), the mounting groove (81) is opened on the inner wall of the mounting block (3), a fixing assembly (9) is provided inside the mounting block (3), and the fixing assembly (9) includes an air pressure chamber (91).

2. The auxiliary shaping mold for a plastic corrugated pipe according to claim 1, characterized in that: The gear ring (61) is arranged on the left side of the mounting frame (2), and the left end of the mounting frame (2) is rotatably connected to a gear (62). The mounting plate (1) is located at the top end of the right end of the left mounting frame (2) and is fixedly connected to a motor (63). The output shaft of the motor (63) passes through the inner wall of the left mounting frame (2) and is fixedly connected to the rotating shaft of the gear (62).

3. The auxiliary shaping mold for plastic corrugated pipe according to claim 1, characterized in that: The top end of the feeding ring (71) is fixedly connected to a feeding pipe (72), the inner wall of the feeding ring (71) is provided with a discharge hole (73), the inner wall of the outer mold (4) is provided with a feeding hole (74), the bottom end of the feeding ring (71) is fixedly connected to a bracket (75), and the bottom end of the bracket (75) is fixedly connected to the top end of the mounting plate (1).

4. The auxiliary shaping mold for a plastic corrugated pipe according to claim 1, characterized in that: The inner wall of the mounting groove (81) is slidably connected to a moving block (82), and the end of the moving block (82) close to the inner mold (5) is fixedly connected to an air bag (83). The inner wall of the mounting groove (81) is rotatably connected to a turntable (84), and the end of the turntable (84) close to the moving block (82) is provided with a slide groove (88). The end of the moving block (82) close to the turntable (84) is fixedly connected to a control rod (85), and the control rod (85) is arranged inside the slide groove (88). The outer wall of the turntable (84) is fixedly connected to a worm gear (86). The inner wall of the mounting block (3) is rotatably connected to a worm (87), and the rotating shaft of the worm (87) passes through the inner wall of the mounting block (3).

5. The auxiliary shaping mold for plastic corrugated pipe according to claim 1, characterized in that: The air pressure chamber (91) is provided on the inner wall of the side closer to the outer mold (4) than the mounting groove (81), the inner wall piston of the air pressure chamber (91) is connected to a slide plate (92), one end of the slide plate (92) close to the outer mold (4) is fixedly connected to a screw rod (93), the inner wall of the mounting block (3) is fixedly connected to an air bag 2 (94), and the interior of the air bag 2 (94) is communicated with the interior of the air pressure chamber (91).

6. The auxiliary shaping die for a plastic corrugated pipe according to claim 3, characterized in that: The feeding holes (74) are located outside the outer mold (4), the number of the feeding holes (74) is set to be multiple and arranged in a circumferential manner, and the feeding holes (74) and the discharge holes (73) are located in the same plane.

7. The auxiliary shaping die for a plastic corrugated pipe according to claim 4, characterized in that: The initial shape of the airbag 1 (83) is a hemisphere, the interior of the airbag 1 (83) is set to be hollow and filled with gas, and the material of the airbag 1 (83) is set to be rubber.

8. The auxiliary shaping die for a plastic corrugated pipe according to claim 1, characterized in that: The shape of the mounting groove (81) is a shape formed by connecting a circular groove and a plurality of rectangular parallelepiped grooves.

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