Plastic elbow forming device

Abstract

The utility model relates to the technical field of plastic bent pipes, and discloses a plastic bent pipe forming device which comprises a rack, a conveying belt installed at the upper end of the rack, first supports symmetrically arranged on one side of the conveying belt, and first pneumatic telescopic rods symmetrically arranged at the upper ends of the first supports. A heating fan is installed at the output end of the first pneumatic telescopic rod, a supporting assembly is installed at the upper end of the conveying belt, a supporting frame is installed on one side of the first support, a second pneumatic telescopic rod is installed on one side of the supporting frame, and a second sliding block is installed at the output end of the second pneumatic telescopic rod. According to the utility model, the plastic bent pipe is driven to turn over through the uniform turning assembly, uniform heating treatment is automatically carried out on the plastic bent pipe, so that the plastic bent pipe is subjected to uniform thermal stress in the forming process, the production precision and the stability are improved, the plastic pipe is ensured to be smoothly separated from the mold after being bent through the supporting assembly, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe bending, in particular to a plastic pipe bending forming device. Background Art

[0002] Plastic elbow pipe is a special shape of plastic pipe with a circular or oval cross-section. This curved plastic pipe is mainly used in the transportation systems of various industrial equipment, machinery, automobiles and other fields.

[0003] Plastic pipe bends are widely used in various industries, especially in the chemical, construction, automotive and other fields. The traditional plastic pipe bending forming method has many shortcomings, and it is necessary to develop a plastic pipe bending forming device to facilitate the bending process of plastic pipes.

[0004] Chinese Patent Publication No.: CN217621954U discloses "A Demolding Structure for Special-shaped Plastic Bend Pipes", which includes a special-shaped bend pipe injection molded part, wherein a left insert bottom plate arranged vertically is installed at the left end of the special-shaped bend pipe injection molded part, and a right insert bottom plate arranged vertically is installed at the right end, and a left insert mother block arranged in the special-shaped bend pipe injection molded part is installed at the upper end of the left insert bottom plate, and a right insert mother block arranged in the special-shaped bend pipe injection molded part is installed at the upper end of the right insert bottom plate, and a plurality of special-shaped bend pipe left inserts are installed at the front end of the left insert mother block, and a plurality of special-shaped bend pipe right inserts are installed at the front end of the right insert mother block, and the inserts are placed in the injection mold and injection-molded together with the special-shaped bend pipe injection molded part, and then demolded together as a whole after molding, so that demolding is simple, no disassembly is required, and production efficiency is greatly improved; it has the advantages of novel design, simple structure, and overall demolding of bend pipe molding is realized without disassembly, which greatly improves injection molding effect and efficiency.

[0005] The above-mentioned prior art places the insert into the injection mold and injection molds it together with the special-shaped elbow injection molded part, and then demolds the whole part together after molding, so that demolding is simple and there is no need to disassemble the parts, which greatly improves the production efficiency. However, the existing device does not have the function of automatically and uniformly heating the molded plastic elbow during use, and has certain limitations when used. Uneven heating causes uneven thermal stress in the plastic elbow during the molding process, thereby affecting the shape accuracy and dimensional stability of the elbow. Utility Model Content

[0006] The purpose of the utility model is to provide a plastic pipe bending forming device to solve the problem that the above-mentioned background technology does not have the function of automatically and evenly heating the formed plastic pipe bends, and has certain limitations when used. Uneven heating causes uneven thermal stress to be generated in the plastic pipe bend during the forming process, thereby affecting the shape accuracy and dimensional stability of the pipe bend.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a plastic tube bending forming device, comprising a frame, a conveyor belt is installed on the upper end of the frame, a first bracket is symmetrically arranged on one side of the conveyor belt, a first pneumatic telescopic rod is symmetrically arranged on the upper end of the first bracket, a heating fan is installed on the output end of the first pneumatic telescopic rod, a support assembly is installed on the upper end of the conveyor belt, a support frame is installed on one side of the first bracket, a second pneumatic telescopic rod is installed on one side of the support frame, a second slider is installed on the output end of the second pneumatic telescopic rod, a slide rail is arranged on the outer side of the second slider, and a uniform flip assembly is installed on the upper end of the second slider;

[0008] The support assembly comprises a fixed rod, a buffer rod is installed inside the fixed rod, a spring is sleeved on the outer side of the buffer rod, a first slider is installed on the upper end of the spring, a slide rod is installed on the upper end of the first slider, and a support block is installed on the upper end of the slide rod;

[0009] The uniform flipping assembly includes an installation bin, a motor is installed on one side of the installation bin, a first gear is installed on the output end of the motor, a second gear is installed on one side of the first gear, an elastic support bin is installed on one end of the second gear, and an inflation tube is connected to one side of the elastic support bin.

[0010] Preferably, a bent pipe bottom mold is installed at the upper end of the conveyor belt, a second bracket is provided on one side of the first bracket, a third pneumatic telescopic rod is installed on the upper end of the second bracket, a bent pipe top mold is installed at the output end of the third pneumatic telescopic rod, and an internal support device for plastic pipes is installed on one side of the second bracket.

[0011] Preferably, there are multiple groups of fixing rods, which are symmetrically arranged at the upper end of the conveyor belt, and there are multiple groups of buffer rods, which are symmetrically arranged at both ends of the spring.

[0012] Preferably, the first sliding block is slidably disposed in the fixing rod, the sliding rod penetrates the fixing rod and extends to the outside thereof, and the supporting block is semi-arc-shaped.

[0013] Preferably, the second sliding block is slidably arranged in the sliding rail, and the output end of the second pneumatic telescopic rod is detachably connected to the second sliding block.

[0014] Preferably, the mounting bin is detachable at the upper end of the second sliding block, and the output end of the motor is detachably connected to the first gear.

[0015] Preferably, the first gear is meshed with the second gear, and the elastic support bin penetrates the first bracket and extends to the outside thereof.

[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0017] First, the utility model drives the plastic bent pipe to flip through the uniform flipping component provided, automatically performs uniform heating treatment on the plastic bent pipe, so that the plastic bent pipe is subjected to uniform thermal stress during the molding process, thereby improving production accuracy and stability; by starting the second pneumatic telescopic rod, the second pneumatic telescopic rod drives the second slider to slide in the slide rail, the movement of the second slider drives the installation bin to move, the movement of the installation bin drives the elastic support bin to move through the plastic tube, and air is inflated into the elastic support bin through the inflation tube so that the elastic support bin is stuck in the plastic tube; the motor is started, the motor drives the first gear to rotate, the rotation of the first gear drives the second gear to rotate, the rotation of the second gear drives the elastic support bin to rotate, and the rotation of the elastic support bin drives the plastic tube to rotate, so that it is heated evenly.

[0018] Second, the utility model ensures that the plastic tube can be smoothly separated from the mold after bending by setting a support component, thereby improving production efficiency. When the plastic tube moves to the lower end of the bending tube top mold, the third pneumatic telescopic rod is started, and the third pneumatic telescopic rod drives the bending tube top mold to move. The bending tube top mold moves close to the bending tube bottom mold to bend the plastic tube, and at the same time presses the support block to move. The movement of the support block causes the slide bar to move. The movement of the slide bar drives the first slide bar to move. The movement of the first slide bar compresses the spring. When the molding is completed, the spring is reset. The spring reset causes the first slide bar to move upward, thereby causing the support block to move upward, which is convenient for smooth separation from the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 For this utility model Figure 2 A magnified view of the structure at center A;

[0022] Figure 4 It is a structural schematic diagram of the spring and the slider of the utility model.

[0023] In the figure: 1. frame; 2. conveyor belt; 3. first bracket; 4. first pneumatic telescopic rod; 5. heating fan; 6. support assembly; 601. fixed rod; 602. buffer rod; 603. spring; 604. first slider; 605. slide rod; 606. support block; 7. uniform flip assembly; 701. installation bin; 702. motor; 703. first gear; 704. second gear; 705. elastic support bin; 706. inflatable tube; 8. support frame; 9. second pneumatic telescopic rod; 10. second slider; 11. slide rail; 12. bottom mold for bent pipe; 13. second bracket; 14. third pneumatic telescopic rod; 15. top mold for bent pipe; 16. internal support equipment for plastic pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 A plastic tube bending forming device comprises a frame 1, a conveyor belt 2 is installed on the upper end of the frame 1, a first bracket 3 is symmetrically arranged on one side of the conveyor belt 2, a first pneumatic telescopic rod 4 is symmetrically arranged on the upper end of the first bracket 3, a heating fan 5 is installed on the output end of the first pneumatic telescopic rod 4, a support assembly 6 is installed on the upper end of the conveyor belt 2, a support frame 8 is installed on one side of the first bracket 3, a second pneumatic telescopic rod 9 is installed on one side of the support frame 8, a second slider 10 is installed on the output end of the second pneumatic telescopic rod 9, a slide rail 11 is arranged on the outer side of the second slider 10, and a uniform turning assembly 7 is installed on the upper end of the second slider 10; the support assembly 6 comprises a fixing rod 6 01, a buffer rod 602 is installed inside the fixed rod 601, a spring 603 is sleeved on the outer side of the buffer rod 602, a first slider 604 is installed on the upper end of the spring 603, a slide rod 605 is installed on the upper end of the first slider 604, and a support block 606 is installed on the upper end of the slide rod 605; the uniform flipping component 7 includes a mounting bin 701, a motor 702 is installed on one side of the mounting bin 701, a first gear 703 is installed on the output end of the motor 702, a second gear 704 is installed on one side of the first gear 703, an elastic support bin 705 is installed on one end of the second gear 704, and an inflation tube 706 is connected to one side of the elastic support bin 705.

[0026] Through the above technical solution, the uniform turning component 7 is set to drive the plastic bent pipe to turn over, and the plastic bent pipe is automatically and uniformly heated, so that the plastic bent pipe is subjected to uniform thermal stress during the molding process, thereby improving production accuracy and stability. By starting the second pneumatic telescopic rod 9, the second pneumatic telescopic rod 9 drives the second slider 10 to slide in the slide rail 11, and the movement of the second slider 10 drives the installation bin 701 to move, and the movement of the installation bin 701 drives the elastic support bin 705 to move through the plastic tube, and the elastic support bin 705 is inflated through the inflation tube 706, so that the elastic support bin 705 is stuck in the plastic tube, and the motor 702 is started, and the motor 702 drives the first gear 703 to rotate, and the rotation of the first gear 703 drives the second gear 704 to rotate, and the rotation of the second gear 704 drives the elastic support bin 70 5 rotates, the elastic support bin 705 rotates to drive the plastic tube to rotate, so that it is heated evenly. The support assembly 6 is set to ensure that the plastic tube is smoothly separated from the mold after bending, thereby improving production efficiency. When the plastic tube moves to the lower end of the bending tube top mold 15, the third pneumatic telescopic rod 14 is started, and the third pneumatic telescopic rod 14 drives the bending tube top mold 15 to move. The bending tube top mold 15 moves close to the bending tube bottom mold 12 to bend the plastic tube, and at the same time presses the support block 606 to move. The movement of the support block 606 moves the slide bar 605, and the movement of the slide bar 605 drives the first slider 604 to move. The movement of the first slider 604 compresses the spring 603. When the molding is completed, the spring 603 is reset, and the reset of the spring 603 causes the first slider 604 to move upward, thereby causing the support block 606 to move upward, which is convenient for smooth separation from the mold.

[0027] Specifically, a bending pipe bottom mold 12 is installed at the upper end of the conveyor belt 2, a second bracket 13 is provided on one side of the first bracket 3, a third pneumatic telescopic rod 14 is installed on the upper end of the second bracket 13, a bending pipe top mold 15 is installed at the output end of the third pneumatic telescopic rod 14, and a plastic pipe internal support device 16 is installed on one side of the second bracket 13.

[0028] Through the above technical solution, the bending bottom mold 12 cooperates with the bending top mold 15 to bend the plastic tube, the second bracket 13 plays a certain supporting role on the third pneumatic telescopic rod 14, the third pneumatic telescopic rod 14 drives the bending top mold 15 to approach the bending bottom mold 12, and the plastic tube internal support device 16 supports the inner wall of the plastic tube to ensure the stability of the plastic tube bending forming.

[0029] Specifically, there are multiple groups of fixed rods 601 symmetrically arranged at the upper end of the conveyor belt 2 , and there are multiple groups of buffer rods 602 symmetrically arranged at both ends of the spring 603 .

[0030] Through the above technical solution, the support blocks 606 arranged on the symmetrically arranged fixing rods 601 support the plastic pipes, making it convenient to transfer the plastic pipes under the action of the conveyor belt 2.

[0031] Specifically, the first sliding block 604 is slidably disposed in the fixing rod 601 , the sliding rod 605 penetrates the fixing rod 601 and extends to the outside thereof, and the supporting block 606 is semi-arc-shaped.

[0032] Through the above technical solution, the first slider 604 ensures the stability of the movement of the slide rod 605, making it convenient for the slide rod 605 to slide in the fixed rod 601. The semi-arc support block 606 facilitates the placement of the plastic pipe at its upper end, which is not easy to shift or shake.

[0033] Specifically, the second slider 10 is slidably arranged in the slide rail 11 , and the output end of the second pneumatic telescopic rod 9 is detachably connected to the second slider 10 .

[0034] Through the above technical solution, the second slider 10 slides on the slide rail 11, so the position where work is required is accurately located by controlling the position of the second slider 10. The output end of the second pneumatic telescopic rod 9 is detachably connected to the second slider 10, so that the second pneumatic telescopic rod 9 drives the second slider 10 to reciprocate on the slide rail 11, or stop at a specific position, thereby achieving precise adjustment.

[0035] Specifically, the mounting chamber 701 is detachable from the upper end of the second sliding block 10 , and the output end of the motor 702 is detachably connected to the first gear 703 .

[0036] Through the above technical solution, the position of the installation bin 701 is adjusted by controlling the moving position of the second slider 10, so that the elastic support bin 705 moves through the plastic tube, and the first gear 703 is driven to rotate by the motor 702. The motor 702 is connected to an external power supply and a controller to ensure the independent operation of each device.

[0037] Specifically, the first gear 703 and the second gear 704 are meshed with each other, and the elastic support chamber 705 penetrates the first bracket 3 and extends to the outside thereof.

[0038] Through the above technical solution, the inflation tube 706 inflates the elastic support bin 705 to expand it, making it convenient to get stuck on the inner wall of the plastic pipe, and conveniently utilizing the first gear 703 to rotate to drive the second gear 704 to rotate, and the second gear 704 to rotate to drive the elastic support bin 705 to rotate, and the elastic support bin 705 to rotate to drive the plastic pipe to rotate, so that it is heated evenly.

[0039] During use, when the plastic tube needs to be evenly heated, the plastic tube is placed on the support block 606, and the second pneumatic telescopic rod 9 is started. The second pneumatic telescopic rod 9 drives the second slider 10 to slide in the slide rail 11. The movement of the second slider 10 drives the installation bin 701 to move. The movement of the installation bin 701 drives the elastic support bin 705 to move through the plastic tube. The elastic support bin 705 is inflated through the inflation tube 706 so that the elastic support bin 705 is stuck on the inner wall of the plastic tube. The motor 702 is started, and the motor 702 drives the first gear 703 to rotate. The rotation of the first gear 703 drives the second gear 704 to rotate. The rotation of the second gear 704 drives the elastic support bin 705 to rotate. The rotation of the elastic support bin 705 drives the plastic tube to rotate so that it is heated evenly. To ensure that the plastic tube is smoothly separated from the mold after bending, when the plastic tube moves to the lower end of the bending tube top mold 15, the third pneumatic telescopic rod 14 is started, and the third pneumatic telescopic rod 14 drives the bending tube top mold 15 to move, and the bending tube top mold 15 moves close to the bending tube bottom mold 12 to bend the plastic tube, and at the same time presses the support block 606 to move, and the support block 606 moves to move the slide bar 605, and the slide bar 605 moves to drive the first slider 604 to move, and the first slider 604 moves to compress the spring 603. When the molding is completed, the spring 603 is reset, and the spring 603 resets to cause the first slider 604 to move upward, and the first slider 604 moves upward to drive the slide bar 605 to move upward, and the slide bar 605 moves upward to cause the support block 606 to move upward, so that the plastic bent tube can be smoothly separated from the mold.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A plastic tube bending device, comprising a frame (1), characterized in that: A conveyor belt (2) is installed at the upper end of the frame (1); a first bracket (3) is symmetrically arranged on one side of the conveyor belt (2); a first pneumatic telescopic rod (4) is symmetrically arranged on the upper end of the first bracket (3); a heating fan (5) is installed at the output end of the first pneumatic telescopic rod (4); a support assembly (6) is installed at the upper end of the conveyor belt (2); a support frame (8) is installed on one side of the first bracket (3); a second pneumatic telescopic rod (9) is installed on one side of the support frame (8); a second slider (10) is installed at the output end of the second pneumatic telescopic rod (9); a slide rail (11) is arranged on the outer side of the second slider (10); and a uniform turning assembly (7) is installed at the upper end of the second slider (10); The support assembly (6) comprises a fixed rod (601), a buffer rod (602) is installed inside the fixed rod (601), a spring (603) is sleeved on the outer side of the buffer rod (602), a first slider (604) is installed on the upper end of the spring (603), a slide rod (605) is installed on the upper end of the first slide rod (604), and a support block (606) is installed on the upper end of the slide rod (605); The uniform turning assembly (7) comprises a mounting chamber (701), a motor (702) being mounted on one side of the mounting chamber (701), a first gear (703) being mounted on the output end of the motor (702), a second gear (704) being mounted on one side of the first gear (703), an elastic support chamber (705) being mounted on one end of the second gear (704), and an inflation tube (706) being connected to one side of the elastic support chamber (705).

2. A plastic tube bending and forming device according to claim 1, characterized in that: A pipe bending bottom mold (12) is installed at the upper end of the conveyor belt (2), a second bracket (13) is provided on one side of the first bracket (3), a third pneumatic telescopic rod (14) is installed on the upper end of the second bracket (13), a pipe bending top mold (15) is installed at the output end of the third pneumatic telescopic rod (14), and a plastic pipe internal support device (16) is installed on one side of the second bracket (13).

3. A plastic tube bending and forming device according to claim 1, characterized in that: The fixing rods (601) are multiple groups, and the multiple groups of fixing rods (601) are symmetrically arranged at the upper end of the conveyor belt (2); the buffer rods (602) are multiple groups, and the multiple groups of buffer rods (602) are symmetrically arranged at both ends of the spring (603).

4. A plastic tube bending and forming device according to claim 1, characterized in that: The first sliding block (604) is slidably disposed inside the fixed rod (601), the sliding rod (605) penetrates the fixed rod (601) and extends to the outside thereof, and the supporting block (606) is semi-arc-shaped.

5. The plastic tube bending and forming device according to claim 1, characterized in that: The second sliding block (10) is slidably arranged in the sliding rail (11), and the output end of the second pneumatic telescopic rod (9) is detachably connected to the second sliding block (10).

6. A plastic tube bending and forming device according to claim 1, characterized in that: The installation bin (701) is detachable at the upper end of the second sliding block (10), and the output end of the motor (702) is detachably connected to the first gear (703).

7. A plastic tube bending and forming device according to claim 1, characterized in that: The first gear (703) is meshed with the second gear (704), and the elastic support bin (705) penetrates the first bracket (3) and extends to the outside thereof.

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