Pipe shrinking machine with automatic feeding and discharging function
By setting positioning grooves and notches on the pallet and combining them with the guide surface design of the pushing device, the automatic loading and unloading of the tube shrinking machine is realized, which solves the problem of manual loading and unloading, reduces costs, simplifies the equipment structure, and facilitates maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TEMING MASCH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-05
AI Technical Summary
Existing tube shrinking machines require manual loading and unloading during the processing, which increases labor costs and reduces production efficiency. Meanwhile, automatic loading and unloading structures are complex and inconvenient to maintain.
A tube shrinking machine with automatic loading and unloading function was designed. By setting positioning grooves and notches on the pallet and setting a second guide surface and a first guide surface on the adjustment plate of the pushing device, the automatic loading and unloading of tubes is realized by using a drive component, which simplifies the structure and facilitates maintenance.
It enables automatic loading and unloading of pipes, saving labor costs and reducing equipment costs. It also has a simple structure and is easy to maintain.
Smart Images

Figure CN224322231U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a processing equipment, and in particular to a tube shrinking machine with automatic loading and unloading function. Background Technology
[0002] A pipe shrinking machine is a hydraulic device mainly used for expanding and shrinking the ends of pipes. During processing, the pipe shrinking machine uses a hydraulic cylinder to drive a die head to squeeze the end of the metal pipe, causing the end of the metal pipe to deform. This equipment is widely used in the processing and forming of pipe fittings, automotive oil pipes, air ducts, water pipes, air conditioning pipes, and other connection parts, making it an ideal pipe end forming processing equipment.
[0003] Existing tube shrinking machines mostly rely on manual loading and unloading during processing, which increases labor costs and reduces production efficiency. To address this, some manufacturers replace traditional tube shrinking machines with those featuring automatic loading and unloading to reduce labor costs. However, the automatic loading and unloading mechanism of these machines is structurally complex, increasing equipment costs and hindering maintenance, causing problems for manufacturers. Utility Model Content
[0004] Therefore, it is necessary to provide a tube shrinking machine with automatic loading and unloading function to address the shortcomings of existing technology.
[0005] A tube shrinking machine with automatic loading and unloading function includes a tube shrinking device, a feeding box located behind the tube shrinking device, a receiving box located in front of the tube shrinking device, several trays mounted on the tube shrinking device, and a pushing device. Each tray has a positioning groove, an inclined guide surface located in front of the positioning groove opening, and a notch located behind the positioning groove opening. The pushing device includes a base plate, a drive assembly, and an adjusting plate mounted on the base plate. The drive assembly adjusts the base plate and the adjusting plate in the vertical direction. The adjusting plate has a second guide surface and a first guide surface sequentially located at the front and rear of its upper end. Both the first and second guide surfaces are inclined forward and downward from the top of the adjusting plate. The vertical movement path of the second guide surface coincides with the horizontal extension direction of the positioning groove, and the vertical movement path of the first guide surface coincides with the horizontal extension direction of the notch. When the adjusting plate is adjusted upward, the second guide surface causes the previous tube to move upward and disengage from the positioning groove. After the first guide surface moves the next pipe upward and disengages from the notch, the pipe falls into the positioning groove along the first guide surface.
[0006] In one embodiment, the inner side of the notch is set at a right angle.
[0007] In one embodiment, the drive assembly includes a support plate, a support frame mounted on the support plate and a drive motor, a drive rod passing through the support frame and mounted on the drive motor, and a drive disc mounted on the drive rod. The drive motor drives the drive disc to rotate, and the drive disc presses against the base plate and the adjustment plate to adjust upwards.
[0008] In one embodiment, the drive disk includes a disc-shaped main body and a protrusion connected to the outer peripheral surface of the main body. The drive disk is located at the bottom of the bottom. When the drive motor drives the drive disk to rotate, the protrusion passes over the bottom plate and presses the bottom plate and the adjustment plate to adjust upward.
[0009] In one embodiment, the tube shrinking device includes two positioning plates, a positioning rod connecting the two positioning plates, two hydraulic cylinders mounted on the two positioning plates, two die heads mounted on the two hydraulic cylinders, and the two positioning plates are arranged opposite each other in the left-right direction. The two hydraulic cylinders respectively drive the die heads to move inward toward each other or move outward away from each other.
[0010] In one embodiment, the die head is provided with a die groove, and the space inside the die groove is tapered, narrower inside and wider outside.
[0011] In one embodiment, the adjusting plate of the pusher device passes between the two positioning rods of the tube shrinking device.
[0012] In one embodiment, the feeding box has a continuously bent channel, and the outlet position on the feeding box is located near the notch and the first guide surface.
[0013] In one embodiment, the pallet and the adjusting plate are respectively provided with a first adjusting port and a second adjusting port. The tube shrinking machine with automatic loading and unloading function also includes a guide column, which passes through the first adjusting port and the second adjusting port in the horizontal direction at the same time.
[0014] In one embodiment, a pressing device is also included, which includes a pressing cylinder and a pressing block connected to the pressing cylinder. Before the tube is withdrawn from the die head, the pressing cylinder drives the pressing block to press the tube. After the die head is withdrawn from the tube, the pressing cylinder drives the pressing block to return to its original position.
[0015] The advantages of this utility model of a tube shrinking machine with automatic loading and unloading function are as follows: By setting a positioning groove and a notch on the pallet, and setting a second guide surface and a first guide surface on the adjusting plate of the pushing device, the vertical movement path of the second guide surface coincides with the horizontal extension direction of the positioning groove, and the vertical movement path of the first guide surface coincides with the horizontal extension direction of the notch. When the base plate and the adjusting plate are adjusted to the highest position, the second guide surface drives the previous tube to move upward and disengage from the positioning groove. After the first guide surface drives the next tube to move upward and disengage from the notch, the tube falls into the positioning groove along the first guide surface. This utility model realizes automatic loading and unloading of tubes in the positioning groove, saving labor costs. Moreover, the overall structure is simple, reducing equipment costs and facilitating maintenance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the tube shrinking machine with automatic loading and unloading function according to this utility model;
[0017] Figure 2 for Figure 1 The diagram shows the structure of a tube shrinking machine with automatic loading and unloading functions after some components have been removed.
[0018] Figure 3 This is a schematic diagram of the structure of the tube shrinking machine of this utility model when the tray, pushing device, feeding box and pressing device are used together. Detailed Implementation
[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0025] Please see Figures 1 to 3 This utility model provides a tube shrinking machine with automatic loading and unloading function, which is used to process the end position of the tube 100 so that the end of the tube 100 is tapered.
[0026] The tube shrinking machine with automatic loading and unloading function includes a frame 10, a tube shrinking device 20 mounted on the frame 10, a feeding box 30 mounted on the frame 10 and located behind the tube shrinking device 20, a receiving box 40 located in front of the tube shrinking device 20, several trays 50 mounted on the tube shrinking device 20, and a pushing device 60 mounted on the frame 10. The receiving box 40 is used to place the tubes 100 to be processed. The tubes 100 placed at the bottom of the receiving box 40 flow into the pushing device 60 and the trays 50. The pushing device 60 cooperates with the trays 50 to allow the tubes 100 to flow into or out of the trays 50. When the tubes 100 flow into the processing position of the trays 50, the tube shrinking device 20 processes the tubes 100.
[0027] The tube shrinking device 20 includes two positioning plates 21, a positioning rod 22 connecting the two positioning plates 21, two hydraulic cylinders 23 mounted on the two positioning plates 21, and two die heads 24 mounted on the two hydraulic cylinders 23. The two positioning plates 21 are arranged opposite each other in the left-right direction, and the tube 100 on the receiving box 40 flows in from the front-back direction. The two hydraulic cylinders 23 respectively drive the die heads 24 to move inward toward each other or outward away from each other. Each die head 24 is provided with a die groove 241, and the space inside the die groove 241 is tapered, narrower inside and wider outside.
[0028] The pallet 50 is provided with a positioning groove 51, which is V-shaped. The pallet 50 has an outlet surface 53 at the front side of the opening of the positioning groove 51, which is inclined. The pallet 50 has a recess 52 at the rear side of the opening of the positioning groove 51, with the inner side of the recess 52 being right-angled.
[0029] The feeding device 60 includes a base plate 62, a drive assembly 61, and an adjusting plate 63 mounted on the base plate 62. The adjusting plate 63 on the base plate 62 corresponds one-to-one with the support plate 50. The drive assembly 61 is used to adjust the position of the base plate 62 and the adjusting plate 63 in the vertical direction. The adjusting plate 63 has a second guide surface 632 and a first guide surface 631 arranged sequentially at the front and rear positions of its upper end. The first guide surface 631 is inclined forward and downward from the top surface of the adjusting plate 63, and the second guide surface 632 is also inclined forward and downward from the top surface of the adjusting plate 63.
[0030] The drive assembly 61 includes a support plate 611, a support frame 612 mounted on the support plate 611, a drive motor 613, a drive rod 614 passing through the support frame 612 and mounted on the drive motor 613, and a drive disk 615 mounted on the drive rod 614. The drive motor 613 drives the drive disk 615 to rotate around the axis of the drive rod 614. The drive disk 615 includes a disc-shaped main body 616 and a protrusion 617 connected to the outer peripheral surface of the main body 616. The drive disk 615 is located at the bottom of the bottom. As the drive motor 613 drives the drive disk 615 to rotate, when the protrusion 617 passes over the base plate 62, the protrusion 617 presses the base plate 62 and the adjusting plate 63 upwards. After the protrusion 617 passes over the base plate 62, under the action of gravity, the protrusion 617 releases the base plate 62, and the base plate 62 and the adjusting plate 63 adjust downwards until the base plate 62 presses down on the outer peripheral surface of the main body 616.
[0031] During assembly, the adjusting plate 63 of the pushing device 60 passes between the two positioning rods 22 of the shrinking device 20, and the vertical movement path of the second guide surface 632 coincides with the horizontal extension direction of the positioning groove 51, and the vertical movement path of the first guide surface 631 coincides with the horizontal extension direction of the notch 52.
[0032] When the base plate 62 and the adjusting plate 63 are lowered to the lowest position, the pipe 100 falls from the feeding box 30 into the inner wall of the recess 52 and the first guide surface 631. When the protrusion 617 presses the base plate 62 and the adjusting plate 63 to adjust them to the highest position, the first guide surface 631 drives the pipe 100 to move upward and disengage from the recess 52. The pipe 100 falls into the positioning groove 51 along the first guide surface 631. The base plate 62 and the adjusting plate 63 return to their lower position. The next pipe 100 falls from the feeding box 30 into the space between the inner wall of the recess 52 and the first guide surface 631. When the protrusion 617 presses the base plate 62 and the adjusting plate 63 to adjust them to the highest position again, the second guide surface 632 drives the pipe 100 to move upward and disengage from the positioning groove 51. The pipe 100 flows into the outlet surface 53 along the second guide surface 632 and falls into the receiving box 40 along the outlet surface 53.
[0033] In addition, in order to allow more pipes 100 to be placed in the feeding box 30, and to allow the pipes 100 to flow smoothly one by one into the notch 52 and the first guide surface 631, the feeding box 30 is provided with a continuously bent channel 31, and the outlet position on the feeding box 30 is set near the notch 52 and the first guide surface 631.
[0034] In addition, in order to better guide the adjustment plate 63 in the vertical direction, the support plate 50 and the adjustment plate 63 are respectively provided with a first adjustment port 54 and a second adjustment port 633. The present invention also includes a guide post 80, which passes through the first adjustment port 54 and the second adjustment port 633 in the horizontal direction.
[0035] After the pipe 100 falls into the positioning groove 51, the two hydraulic cylinders 23 drive the two die heads 24 to move inward toward each other. The die grooves 241 on the two die heads 24 squeeze the two ends of the pipe 100, causing the two ends of the pipe 100 to deform. To ensure that the pipe 100 can be smoothly removed from the die head 24 after processing, this utility model also includes a pressing device 70. The pressing device 70 includes a pressing cylinder 71 and a pressing block 72 connected to the pressing cylinder 71. Before the pipe 100 is removed from the die head 24, the pressing cylinder 71 drives the pressing block 72 to press the pipe 100. After the die head 24 is removed from the pipe 100, the pressing cylinder 71 drives the pressing block 72 to return to its original position.
[0036] The beneficial effects of this utility model of a tube shrinking machine with automatic loading and unloading function are as follows: By setting a positioning groove 51 and a notch 52 on the pallet 50, and setting a second guide surface 632 and a first guide surface 631 on the adjusting plate 63 of the pushing device 60, the vertical movement path of the second guide surface 632 coincides with the horizontal extension direction of the positioning groove 51, and the vertical movement path of the first guide surface 631 coincides with the horizontal extension direction of the notch 52. When the base plate 62 and the adjusting plate 63 are adjusted upward to the highest position, the second guide surface 632 drives the previous tube 100 to move upward and disengage from the positioning groove 51. After the first guide surface 631 drives the next tube 100 to move upward and disengage from the notch 52, the tube 100 falls into the positioning groove 51 along the first guide surface 631. This utility model realizes automatic loading and unloading of tubes 100 on the positioning groove 51, saving labor costs. Moreover, the overall structure is simple, reducing equipment costs and facilitating maintenance.
[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0038] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A tube shrinking machine with automatic loading and unloading function, characterized in that, The device includes a tube shrinking device, a feeding box located behind the tube shrinking device, a receiving box located in front of the tube shrinking device, several trays mounted on the tube shrinking device, and a pushing device. Each tray has a positioning groove, an inclined guide surface at the front of the positioning groove opening, and a notch at the rear of the positioning groove opening. The pushing device includes a base plate, a drive assembly, and an adjusting plate mounted on the base plate. The drive assembly adjusts the base plate and the adjusting plate in a vertical direction. The adjusting plate has several trays arranged sequentially at its upper front and rear positions. The first guide surface and the second guide surface are both inclined forward and downward from the top of the adjusting plate. The vertical movement path of the second guide surface coincides with the horizontal extension direction of the positioning groove, and the vertical movement path of the first guide surface coincides with the horizontal extension direction of the notch. When the adjusting plate is adjusted upward, the second guide surface drives the previous pipe to move upward and disengage from the positioning groove. After the first guide surface drives the next pipe to move upward and disengage from the notch, the pipe falls into the positioning groove along the first guide surface.
2. The tube shrinking machine with automatic loading and unloading function according to claim 1, characterized in that, The inner side of the notch is set at a right angle.
3. The tube shrinking machine with automatic loading and unloading function according to claim 1, characterized in that, The drive assembly includes a support plate, a support frame mounted on the support plate and a drive motor, a drive rod passing through the support frame and mounted on the drive motor, and a drive disc mounted on the drive rod. The drive motor drives the drive disc to rotate, and the drive disc presses against the base plate and the adjustment plate to adjust the position upward.
4. The tube shrinking machine with automatic loading and unloading function according to claim 3, characterized in that, The drive disk includes a disc-shaped main body and a protrusion connected to the outer peripheral surface of the main body. The drive disk is located at the bottom of the bottom. When the drive motor drives the drive disk to rotate, the protrusion passes over the bottom plate and presses the bottom plate and the adjustment plate to adjust upward.
5. The tube shrinking machine with automatic loading and unloading function according to claim 1, characterized in that, The tube shrinking device includes two positioning plates, a positioning rod connecting the two positioning plates, two hydraulic cylinders mounted on the two positioning plates, two die heads mounted on the two hydraulic cylinders, and the two positioning plates are arranged opposite each other in the left-right direction. The two hydraulic cylinders respectively drive the die heads to move inward toward each other or move outward away from each other.
6. The tube shrinking machine with automatic loading and unloading function according to claim 5, characterized in that, The mold head is provided with a mold groove, and the space inside the mold groove is tapered, narrower inside and wider outside.
7. The tube shrinking machine with automatic loading and unloading function according to claim 5, characterized in that, The adjusting plate of the pushing device passes between the two positioning rods of the tube shrinking device.
8. The tube shrinking machine with automatic loading and unloading function according to claim 1, characterized in that, The feeding box has a continuously bent channel inside, and the outlet position on the feeding box is located near the notch and the first guide surface.
9. The tube shrinking machine with automatic loading and unloading function according to claim 1, characterized in that, The pallet and the adjusting plate are respectively provided with a first adjusting port and a second adjusting port. The tube shrinking machine with automatic loading and unloading function also includes a guide column, which passes through the first adjusting port and the second adjusting port in the horizontal direction at the same time.
10. The tube shrinking machine with automatic loading and unloading function according to claim 1, characterized in that, It also includes a pressing device, which includes a pressing cylinder and a pressing block connected to the pressing cylinder. Before the pipe is withdrawn from the die head, the pressing cylinder drives the pressing block to press the pipe. After the die head is withdrawn from the pipe, the pressing cylinder drives the pressing block to return to its original position.