Flaring forming equipment for PVC-C plastic pipe

Abstract

The utility model discloses flaring forming equipment for a PVC-C plastic pipe, relates to the technical field of plastic pipe processing, and solves the technical problems that the existing plastic pipe flaring equipment realizes feeding and displacement of the plastic pipe through a manipulator, and the use range of the equipment is limited based on the use and maintenance requirements of the manipulator. The supporting blocks are arranged on the surface of the conveying belt for conveying the plastic short pipes, the plastic short pipes can be placed on the surface of the conveying belt in a non-perpendicular mode through the supporting blocks, the plastic short pipes are directly conveyed to the clamping position through the conveying belt, and it is guaranteed that openings face the two sides when the plastic short pipes reach the clamping position through the reversing structures; a mechanical arm conveying structure in the original scheme is replaced, the overall plastic short pipe conveying cost and the related maintenance and overhaul cost of a flaring structure are lower, the use difficulty is lowered, and the use range of the equipment is relatively wider.

Description

Technical Field

[0001] The utility model belongs to the field of plastic pipe processing, relates to a pipe expansion technology, and specifically is an expansion molding device for PVC-C plastic pipes. Background Art

[0002] PVC-C plastic pipes are generally used to form guide pipes for liquids, allowing the liquid to move to a specified location. The long plastic pipes can be cut according to usage requirements, and plastic short pipes are used to connect the long plastic pipes at different locations. Therefore, during production, the short plastic pipes need to be flared at both ends to facilitate the connection between the long plastic pipe end and the short plastic pipe end.

[0003] The reference patent name is: A flaring molding device for PVC-C plastic pipes (patent announcement number: CN114889113B). Through a plastic short pipe conveying device, a manipulator, a clamping device and a flaring device, the loading and unloading of plastic short pipes and the flaring of both ends of the plastic short pipes are realized. The continuous loading and flaring effectively ensure the production efficiency of the plastic short pipes.

[0004] However, when implementing the above technical solution, the following problems exist: in the above device, a robot is used to change the position and angle of the plastic short tube between the conveying device and the clamping device, and the device needs to regularly inspect and maintain the robot during use, and the use cost and maintenance cost are relatively high. In addition, the maintenance of the relevant data of the robot has high requirements for maintenance personnel, and the threshold for use is relatively high.

[0005] Therefore, the utility model provides a PVC-C plastic pipe expansion molding device. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a PVC-C plastic pipe expansion molding device. This PVC-C plastic pipe expansion molding device solves the problem that existing plastic pipe expansion devices use a robot to load and shift the plastic pipe, which limits the scope of use of the device due to the use and maintenance requirements of the robot.

[0007] To achieve the above-mentioned object, according to an embodiment of the first aspect of the present invention, a PVC-C plastic pipe expansion molding device is provided, comprising: an expansion frame and a conveyor belt, wherein the conveyor belt is slidably connected inside the expansion frame; a transfer mechanism is provided between the conveyor belt and the expansion frame, and the transfer mechanism comprises:

[0008] A plurality of support blocks, each of which is slidably connected to the interior of the conveyor belt, and the plurality of support blocks are equidistantly arranged on the surface of the conveyor belt;

[0009] The reversing structure is rotatably arranged inside the expansion frame, and the reversing structure includes:

[0010] A reversing block is slidably arranged inside the flaring frame. A reversing gear is fixedly connected to the reversing block on the side close to the flaring frame. A reversing rack is fixedly connected inside the flaring frame. The reversing gear and the reversing rack are meshed. The number of teeth on the reversing rack is one-fourth the number of teeth on the reversing gear.

[0011] The contact block and the clamping block are both slidably connected to the inside of the reversing block, the sliding directions of the contact block and the clamping block are perpendicular, the cross-section of the contact block is arc-shaped, and the center point of the arc is located on the side of the contact block close to the reversing block, and a transmission assembly is provided between the contact block and the clamping block.

[0012] Optionally, the surfaces of the support blocks are fixedly connected with sliding columns, the surfaces of the expansion frames are fixedly connected with sliding rails, and the sliding rails are adapted to the sliding columns.

[0013] Optionally, a moving groove is provided inside the reversing block, the moving groove is adapted to the contact block, and a moving spring is fixedly connected between the moving groove and the contact block.

[0014] Optionally, a support column is rotatably connected to a side of the reversing gear away from the reversing block, and a support spring is fixedly connected between the support column and the expansion frame.

[0015] Optionally, the transmission assembly includes a pulling belt and two intermediate parts, and one end of the pulling belt is fixedly connected to the surface of the contact block.

[0016] Optionally, the middle part includes an intermediate rod, the surface of the intermediate rod is rotatably connected to two transmission wheels, a transmission belt is connected between the transmission wheels, one side of the intermediate rod is fixedly connected to a connecting block, one end of the transmission wheel close to the connecting block is fixedly connected to a transmission gear, and two transmission racks are fixedly connected inside the reversing block, and the transmission gear and the transmission rack are meshed.

[0017] Optionally, the connecting block near the middle portion of the contact block is fixedly connected to one end of the pulling belt, and the connecting block near the clamping block is fixedly connected to the adjacent transmission belt.

[0018] Optionally, an intermediate block is fixedly connected to the surface of the clamping block, and the intermediate block is fixedly connected to the transmission belt.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: support blocks are arranged on the surface of the conveyor belt for conveying plastic short tubes, and the support blocks enable the plastic short tubes to be placed non-vertically on the surface of the conveyor belt, and the plastic short tubes are directly conveyed to the clamping position through the conveyor belt, and the reversing structure is used to ensure that the plastic short tubes are open to both sides when they reach the clamping position, thereby replacing the manipulator transmission structure in the original scheme, making the overall plastic short tube transportation and expansion structure maintenance and inspection costs lower, and reducing the difficulty in use, thereby making the range of use of the equipment relatively wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural stereogram of the utility model;

[0021] Figure 2 This is a sectional view of the three-dimensional structure of the support block of the present invention;

[0022] Figure 3 This is a sectional view of the three-dimensional structure of the contact block of the present invention;

[0023] Figure 4 This is a structural stereogram of the reversing structure of the utility model;

[0024] Figure 5 This is a three-dimensional structural cross-sectional view of the middle part of the utility model;

[0025] Figure 6 For the utility model Figure 2 A magnified view of the local structure at point A;

[0026] Figure 7 For the utility model Figure 3 A magnified view of the local structure at point B in the middle;

[0027] Figure 8 For the utility model Figure 5 A magnified view of the local structure at point C in the middle.

[0028] In the figure: 1. Expanding frame; 2. Conveyor belt;

[0029] 31. Support block; 32. Reversing block; 33. Reversing gear; 34. Reversing rack; 35. Contact block; 36. Clamping block;

[0030] 41. Sliding column; 42. Sliding rail;

[0031] 51. Moving groove; 52. Moving spring;

[0032] 61. Support column; 62. Support spring;

[0033] 71. Pulling belt; 72. Intermediate rod; 73. Transmission wheel; 74. Transmission belt; 75. Connecting block; 76. Transmission gear; 77. Transmission rack; 78. Intermediate block. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. 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.

[0035] like Figure 1-8 As shown, a PVC-C plastic pipe expansion molding device includes an expansion frame 1 and a conveyor belt 2, wherein the conveyor belt 2 is slidably connected inside the expansion frame 1;

[0036] It should be noted that the structure and shape of the expansion frame 1 are the same as those of the gantry frame in the reference patent, and the same clamping mechanism and expansion mechanism are provided inside (not shown in the figure);

[0037] It should be noted that the vertical projection of the conveyor belt 2 on the expansion frame 1 is a lateral branching structure, wherein the branches are directed toward the clamping direction of the plastic short tube;

[0038] A transfer mechanism is provided between the conveyor belt 2 and the expansion frame 1, and the transfer mechanism includes:

[0039] A plurality of support blocks 31, each of which is slidably connected to the interior of the conveyor belt 2, and the plurality of support blocks 31 are equidistantly arranged on the surface of the conveyor belt 2;

[0040] The reversing structure is rotatably connected to the inside of the expansion frame 1, and the reversing structure includes:

[0041] A reversing block 32 is slidably disposed within the flaring frame 1. A reversing gear 33 is fixedly connected to the reversing block 32 on the side close to the flaring frame 1. A reversing rack 34 is fixedly connected to the interior of the flaring frame 1. The reversing gear 33 and the reversing rack 34 are meshed. The number of teeth on the reversing rack 34 is one-fourth the number of teeth on the reversing gear 33.

[0042] It should be noted that the reversing gear 33 on the surface of the reversing block 32 deviates from the midpoint of the reversing block 32 , and the reversing block 32 is L-shaped;

[0043] The contact block 35 and the clamping block 36 are both slidably connected to the interior of the reversing block 32. The sliding directions of the contact block 35 and the clamping block 36 are perpendicular. The cross-section of the contact block 35 is arc-shaped, and the center point of the arc is located on the side of the contact block 35 close to the reversing block 32. A transmission assembly is provided between the contact block 35 and the clamping block 36.

[0044] In actual use, the expansion and forming equipment for PVC-C plastic pipes has a support block 31 provided on the surface of the conveyor belt 2 for conveying the plastic short pipes. The support block 31 allows the plastic short pipes to be placed non-vertically on the surface of the conveyor belt 2, and is directly conveyed to the clamping position by the conveyor belt 2. A reversing structure ensures that the plastic short pipes are opened to both sides when they arrive at the clamping position, thereby replacing the robot transmission structure in the original solution. This reduces the maintenance and repair costs of the overall plastic short pipe transportation and expansion structure, and reduces the difficulty of use, thereby making the equipment relatively more widely applicable.

[0045] In some specific embodiments, the surfaces of the support blocks 31 are fixedly connected with sliding posts 41, and the surfaces of the expansion racks 1 are fixedly connected with sliding rails 42, and the sliding rails 42 are adapted to the sliding posts 41;

[0046] In a further embodiment, the sliding rail 42 includes an inclined portion, a horizontal portion, and a connecting portion. The inclined portion is parallel to the obliquely upward portion of the conveyor belt 2, the horizontal portion is parallel to the horizontal portion of the conveyor belt 2 close to the surface of the flaring frame 1, and the connecting portion is in the shape of a line segment directly connecting the inclined portion and the horizontal portion; that is, when the sliding column 41 slides to the connecting portion, the support block 31 moves again and moves obliquely downward, and the relative position of the support block 31 to the conveyor belt 2 remains unchanged at the positions of the inclined portion and the horizontal portion.

[0047] In some specific embodiments, a movable groove 51 is formed inside the reversing block 32, and the movable groove 51 is adapted to fit the contact block 35. A movable spring 52 is fixedly connected between the movable groove 51 and the contact block 35. That is, after the contact block 35 slides into the reversing block 32, if there is no plastic short tube exerting force on its surface, the position of the contact block 35 can be restored under the action of the movable spring 52.

[0048] In some specific embodiments, a support column 61 is rotatably connected to the side of the reversing gear 33 away from the reversing block 32, and a support spring 62 is fixedly connected between the support column 61 and the expansion frame 1;

[0049] It should be noted that the cross section of the support column 61 is T-shaped, and a groove adapted thereto is provided inside the expansion frame 1;

[0050] In some specific embodiments, the transmission assembly includes a pulling belt 71 and two intermediate parts, one end of the pulling belt 71 is fixedly connected to the surface of the contact block 35, the intermediate part includes an intermediate rod 72, the surface of the intermediate rod 72 is rotatably connected to two transmission wheels 73, a transmission belt 74 is connected between the transmission wheels 73, one side of the intermediate rod 72 is fixedly connected to a connecting block 75, one end of the transmission wheel 73 close to the connecting block 75 is fixedly connected to a transmission gear 76, and two transmission racks 77 are fixedly connected to the interior of the reversing block 32, and the transmission gear 76 and the transmission rack 77 are meshed;

[0051] It should be noted that the two intermediate portions have different heights; the two transmission racks 77 have the same thickness but different heights;

[0052] It should be noted that the transmission racks 77 have different lengths, and the transmission rack 77 close to the clamping block 36 is twice as long as the other transmission racks 77;

[0053] In a further embodiment, the connecting block 75 of the middle portion near the contact block 35 is fixedly connected to one end of the pulling belt 71, the connecting block 75 near the clamping block 36 is fixedly connected to the adjacent transmission belt 74, and the surface of the clamping block 36 is fixedly connected to an intermediate block 78, and the intermediate block 78 is fixedly connected to the transmission belt 74;

[0054] The working principle of the present invention is as follows: the plastic short tube is placed on the surface of the support block 31, the transmission belt 2 is started, and the transmission belt 2 drives the plastic short tube to move. When the plastic short tube moves to the position of the contact block 35, the support block 31 moves obliquely downward, and the plastic short tube continues to move to drive the contact block 35 to slide. At this time, the pulling belt 71 is pulled, causing the position of the middle part to change, and the transmission gear 76 rotates under the action of the transmission rack 77, and then the transmission belt 74 slides, causing the clamping block 36 to move, and the contact block 35 and the clamping block 36 contact the surface of the plastic short tube at the same time. The plastic short tube slides again, causing the reversing block 32 to slide, and then the reversing gear 33 slides on the surface of the reversing rack 34. The reversing block 32 rotates, and the contact block 35 and the clamping block 36 drive the plastic short tube to rotate. The plastic short tube slides again and enters the clamping structure.

[0055] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A PVC-C plastic pipe expansion molding equipment, characterized in that: include: An expansion frame (1) and a conveyor belt (2), wherein the conveyor belt (2) is slidably connected inside the expansion frame (1); A transfer mechanism is provided between the conveyor belt (2) and the expansion frame (1), and the transfer mechanism comprises: A plurality of support blocks (31), each of the support blocks (31) being slidably connected to the interior of the conveyor belt (2), and the plurality of support blocks (31) being equidistantly arranged on the surface of the conveyor belt (2); A reversing structure is rotatably arranged inside the expansion frame (1), and the reversing structure comprises: A reversing block (32), the reversing block (32) being slidably disposed inside the expansion frame (1), a reversing gear (33) being fixedly connected to the reversing block (32) on a side close to the expansion frame (1), a reversing rack (34) being fixedly connected inside the expansion frame (1), the reversing gear (33) and the reversing rack (34) being meshed, and the number of teeth on the reversing rack (34) being one-fourth the number of teeth on the reversing gear (33); A contact block (35) and a clamping block (36) are both slidably connected to the inside of the reversing block (32), the sliding directions of the contact block (35) and the clamping block (36) are perpendicular, the cross section of the contact block (35) is arc-shaped, and the center point of the arc is located on the side of the contact block (35) close to the reversing block (32), and a transmission component is provided between the contact block (35) and the clamping block (36).

2. The expansion molding equipment for PVC-C plastic pipes according to claim 1, characterized in that: The surfaces of the support blocks (31) are fixedly connected with sliding columns (41), and the surfaces of the expansion frames (1) are fixedly connected with sliding rails (42), and the sliding rails (42) are adapted to the sliding columns (41).

3. The expansion molding equipment for PVC-C plastic pipes according to claim 1, characterized in that: A moving groove (51) is provided inside the reversing block (32), the moving groove (51) is adapted to the contact block (35), and a moving spring (52) is fixedly connected between the moving groove (51) and the contact block (35).

4. The expansion molding equipment for PVC-C plastic pipes according to claim 1, characterized in that: A support column (61) is rotatably connected to the side of the reversing gear (33) away from the reversing block (32), and a support spring (62) is fixedly connected between the support column (61) and the expansion frame (1).

5. The expansion molding equipment for PVC-C plastic pipes according to claim 1, characterized in that: The transmission assembly comprises a pulling belt (71) and two middle parts, and one end of the pulling belt (71) is fixedly connected to the surface of the contact block (35).

6. The expansion molding equipment for PVC-C plastic pipes according to claim 5, characterized in that: The middle part comprises an intermediate rod (72), the surface of the intermediate rod (72) is rotatably connected to two transmission wheels (73), a transmission belt (74) is connected between the transmission wheels (73), one side of the intermediate rod (72) is fixedly connected to a connecting block (75), one end of the transmission wheel (73) close to the connecting block (75) is fixedly connected to a transmission gear (76), and the interior of the reversing block (32) is fixedly connected to two transmission racks (77), and the transmission gear (76) and the transmission rack (77) are meshed.

7. The expansion molding equipment for PVC-C plastic pipes according to claim 6, characterized in that: The connecting block (75) at the middle portion close to the contact block (35) is fixedly connected to one end of the pulling belt (71), and the connecting block (75) close to the clamping block (36) is fixedly connected to the adjacent transmission belt (74).

8. The expansion molding equipment for PVC-C plastic pipes according to claim 6, characterized in that: The surface of the clamping block (36) is fixedly connected with an intermediate block (78), and the intermediate block (78) is fixedly connected to the transmission belt (74).

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