A joint pressing machine for connecting a continuous composite pipe

Abstract

This application relates to a crimping machine for continuous composite pipe connections, belonging to the field of pipe joint connection technology; it includes a crimping mechanism for crimping composite pipes and joints, the crimping mechanism including a mold connecting plate, a fixing component, and an outer crimping pad and an outer crimping mold inserted sequentially from the outside to the inside in the middle of the mold connecting plate, the mold connecting plate having a fixing hole in the middle for inserting the outer crimping pad and the outer crimping mold, the fixing component for fixing the insertion position of the outer crimping pad and the outer crimping mold, the mold connecting plate having a clearance hole on the side wall for the composite pipe to pass through, the fixing hole communicating with the clearance hole; this application has the effect of convenient disassembly of the crimped composite pipe and its connecting joint.

Description

Technical Field

[0001] This application relates to the field of pipe fitting connection technology, and in particular to a fitting crimping machine for continuous composite pipe connections. Background Technology

[0002] A crimping machine is a hydraulic device used to crimp pipe fittings. It applies contractile force to the fitting through the die of the crimping machine to firmly crimp the fitting onto the pipe. Crimping machines are suitable for various mechanical pipes, such as continuous composite pipes.

[0003] Existing crimping machines such as Figure 1 As shown, Figure 1 The upper diagram shows the crimping machine structure in the internal expansion state, and the lower diagram shows the crimping machine structure in the external crimping state. It includes a hydraulic cylinder 14, a mold connecting plate 11, and an external crimping push rod 19. The cylinder body of the hydraulic cylinder 14 is connected to a connecting plate 15. The driving end of the hydraulic cylinder 14 passes through the connecting plate and is threadedly connected to an internal expansion connecting rod 16. The other end of the internal expansion connecting rod 16 is detachably connected to a conical internal expansion head 17. An internal expansion support sleeve 18 is sleeved around the internal expansion connecting rod 16, and the end of the internal expansion support sleeve 18 is detachably connected to the side wall of the connecting plate 15. The other end of the internal expansion support sleeve 18 is detachably connected to the end of the connector 3. An external crimping pad 12 and an external crimping mold 13 are inserted sequentially from the outside to the inside in the middle of the mold connecting plate 11. The end of the external crimping push rod 19 is provided with a thread that can be threaded to the driving end of the hydraulic cylinder 14, and the other end is provided with an interface connected to the connector 3.

[0004] In actual processing, the end of the connector 3 is inserted into the notch of the inner expansion support sleeve 18, the composite tube 4 is passed through the middle of the outer buckling mold 13 and inserted into the pre-reserved mounting hole at the other end of the connector 3, then the piston rod of the hydraulic cylinder 14 is extended and then retracted to complete the inner expansion. During the retraction process, the piston rod of the hydraulic cylinder 14 drives the inner expansion head 17 to press against the inner wall of the connector 3 so that the inner wall of the connector 3 bites the composite tube 4. When the piston rod of the hydraulic cylinder 14 is fully retracted, the connector 3 and the composite tube 4 are moved away from the connecting plate 15. Then the inner expansion support sleeve 18, the inner expansion connecting rod 16 and the inner expansion head 17 are removed. Then the end of the outer buckling push rod 19 is connected to the driving end of the hydraulic cylinder 14, and the other end of the outer buckling push rod 19 is connected to the connector 3. The piston rod of the hydraulic cylinder 14 is extended again so that the outer buckling push rod 19 pushes against the connector 3 until the connector 3 passes through the middle of the outer buckling mold 13, thus completing the inner expansion and outer buckling operation.

[0005] Regarding the aforementioned technologies, the inventors discovered that after the crimping operation is completed, the connected composite pipe and connector are passed together along the central axis of the composite pipe through the middle of the mold connecting plate to achieve unloading. However, the size of the hole in the middle of the outer mold is fixed. When the connector has a flange, if the outer diameter of the flange is larger than the hole in the middle of the mold connecting plate, it is not convenient to disassemble the crimped composite pipe and connector. Therefore, improvements are needed. Summary of the Invention

[0006] To facilitate the convenient disassembly of the crimped composite pipe and its connecting joints, this application provides a crimping machine for continuous composite pipe connections.

[0007] This application provides a crimping machine for connecting continuous composite pipes, which adopts the following technical solution: A crimping machine for connecting continuous composite pipes includes a crimping mechanism for crimping composite pipes and joints. The crimping mechanism includes a mold connecting plate, a fixing component, and an outer crimping pad and an outer crimping mold inserted sequentially from the outside to the inside of the mold connecting plate. The mold connecting plate has a fixing hole in the middle for inserting the outer crimping pad and the outer crimping mold. The fixing component is used to fix the insertion position of the outer crimping pad and the outer crimping mold. The side wall of the mold connecting plate has a clearance hole for the composite pipe to pass through. The fixing hole is connected to the clearance hole.

[0008] By adopting the above technical solution, when it is necessary to remove the crimped composite pipe and its connectors, the outer crimping pad and outer crimping mold are first removed from the mold connecting plate. If the maximum outer diameter of the joint is smaller than the inner diameter of the fixing hole, the composite pipe and its connectors can be passed through the fixing hole along the axis of the fixing hole to achieve disassembly. If the maximum outer diameter of the joint is larger than the inner diameter of the fixing hole (e.g., the joint has a flange, and the outer diameter of the flange is larger than the inner diameter of the fixing hole), the composite pipe can be passed through the clearance hole so that the composite pipe and its connectors can be disassembled radially along the fixing hole. In summary, the crimping machine provided in this application is suitable for crimping joints and composite pipes with different outer diameters and for disassembling them after crimping.

[0009] Preferably, the clamping mechanism includes a hydraulic cylinder, a connecting plate, an inner expansion rod, an inner expansion head, an inner expansion support sleeve, and an outer clamping push rod; the hydraulic cylinder body is connected to the connecting plate, the mold connecting plate is connected to the side of the connecting plate away from the hydraulic cylinder, and the joint is located between the connecting plate and the mold connecting plate; both the inner expansion rod and the outer clamping push rod have connectors at their ends for detachable connection to the hydraulic cylinder drive end, the other end of the inner expansion rod is detachably connected to the inner expansion head, the inner expansion support sleeve is sleeved around the inner expansion rod, one end of the inner expansion support sleeve is detachably connected to the connecting plate, and the other end is detachably connected to the end of the joint, and the end of the outer clamping push rod away from the connecting plate has an opening for the end of the joint to be inserted.

[0010] By adopting the above technical solution, when performing the internal expansion and external buckling operation, firstly, the internal expansion connecting rod is connected to the hydraulic cylinder drive end, and the internal expansion support sleeve is placed around the internal expansion connecting rod. Then, the end of the connector is detachably connected to the end of the internal expansion support sleeve to support the connector. Next, the composite tube is passed through the middle of the external buckling mold and inserted into the pre-reserved installation hole at the end of the connector. Then, the hydraulic cylinder piston rod drives the internal expansion head to move towards the connecting plate. During the movement, the internal expansion head presses against the inner wall of the connector, so that the inside of the connector expands towards the composite tube, and the inner wall of the connector presses against the wall of the composite tube, thus achieving internal expansion. Then, the internal expansion connecting rod, internal expansion head, and internal expansion support sleeve are removed. Then, the external buckling push rod is installed between the connector and the connecting plate. The hydraulic cylinder drive end drives the external buckling push rod to move towards the composite tube, so that the end of the connector is inserted into the middle of the external buckling mold. At this time, the outer wall of the connector is pressed against the outer peripheral wall of the composite tube by the side wall of the external buckling mold, thus achieving external buckling. Finally, the external buckling and internal expansion buckling operation is completed.

[0011] Preferably, the outer mold includes at least symmetrically arranged parting molds, all of which together form a through hole for the end of the composite pipe or connector to pass through.

[0012] By adopting the above technical solution, when dismantling the composite pipe and its connected joints, since this application divides the outer clamping mold into multiple sub-molds, in actual dismantling, only the sub-mold near the relief hole can be removed, and then the composite pipe can be passed through the relief hole in the radial direction of the fixed hole to achieve dismantling, reducing the time required for loading and unloading and improving the overall clamping processing efficiency.

[0013] Preferably, the outer buckle pad includes a plurality of outer buckle plates and a plurality of first baffles, wherein the outer buckle plates and the first baffles are arranged in a one-to-one correspondence, and each first baffle includes two first sub-plates. The outer buckle plate is disposed between the corresponding two first sub-plates. The first sub-plate on the side of the outer buckle plate away from the joint is provided with a limiting groove for insertion into the outer buckle mold. The first sub-plate is fitted to the joint between the corresponding outer buckle plate and the mold connecting plate. The fixing component includes a plurality of fixing bolts, wherein the fixing bolts are arranged in a one-to-one correspondence with the first baffles, and the fixing bolts pass through the corresponding first baffles and are threadedly connected to the mold connecting plate.

[0014] By adopting the above technical solution, during installation, the outer buckle plate is first inserted into the fixing hole, then the first sub-plate is installed on both sides of the corresponding outer buckle plate with fixing bolts, and finally the outer buckle mold is inserted into the middle of the outer buckle plate. The setting of the limiting groove can limit the insertion position of the outer buckle mold.

[0015] Preferably, the mold connecting plate includes a base plate and a pressure plate, the base plate and the pressure plate together form a fixing hole, the clearance hole is located on the base plate, and the pressure plate is inserted into the clearance hole. The fixing component also includes a rod, the side wall of the pressure plate has a notch for the end of the base plate to be inserted, the rod is inserted into the side wall of the base plate near the notch, and the rod passes through the pressure plate.

[0016] By adopting the above technical solution, the pressure plate is inserted into the relief hole and pressed against the outer buckle plate at the relief hole, thereby fixing the installation position of the outer buckle plate and realizing a stable connection between the outer buckle plate and the mold connecting plate.

[0017] Preferably, each of the first partition plates is provided with a positioning block on the side wall facing the mold connecting plate, and the side wall of the mold connecting plate is provided with a positioning hole for the positioning block to be inserted.

[0018] By adopting the above technical solution, the first plate can be quickly and accurately aligned with the mold connecting plate by inserting the positioning block into the corresponding positioning hole, thereby further improving the installation efficiency.

[0019] Preferably, the mold connecting plate includes a base plate and a pressure plate, the fixing hole is located in the middle of the base plate, the clearance hole penetrates the base plate, and the pressure plate is inserted into the clearance hole; the outer buckle plate includes a third baffle connected to both sides of the pressure plate, a plurality of second baffles, and a plurality of outer buckle plates; the outer buckle plates are inserted into the fixing hole, each second baffle includes two second sub-plates respectively disposed on both sides of the outer buckle plate, the fixing assembly includes a sliding member and a plug rod, the sliding member is used to drive the second sub-plates to move away from or towards the fixing hole, and the pressure plate and the side wall of the base plate are jointly provided with a plug hole for inserting the plug rod.

[0020] By adopting the above technical solution, during installation, the outer buckle plate is first inserted into the fixing hole on the base plate, then the outer buckle mold is inserted into the middle of the outer buckle plate, and then all the second plates are moved towards the fixing hole by the sliding component until they are moved to the side wall of the joint between the outer buckle plate and the fixing hole, so that the outer buckle plate is fixedly inserted into the fixing hole by the second plates. Finally, the pressure plate is inserted into the clearance hole, and then the insertion rod passes through the pressure plate and the base plate at the same time to fix the pressure plate on the base plate.

[0021] Preferably, there are two second baffles, and two second sub-plates belonging to the same second baffle are connected by a connecting rod. The side wall of the base plate is provided with a sliding hole for the connecting rod to slide. The sliding component includes a bidirectional threaded rod, a locking component, a sliding plate, a first push block and a second push block. The bidirectional threaded rod is rotatably connected to the base plate. The locking member is used to fix the rotation position of the bidirectional threaded rod. The threads at both ends of the bidirectional threaded rod are opposite in direction. Each end of the bidirectional threaded rod is threaded with a first push block. The second push block, the first push block, and the second baffle are arranged in a one-to-one correspondence. One end of the second push block is in contact with the corresponding first push block, and the other end is in contact with the end of the corresponding sliding plate.

[0022] By adopting the above technical solution, rotating the bidirectional threaded rod causes the two first push blocks to move away from each other. During the movement, the first push blocks push against the corresponding second push blocks, which in turn push the sliding plate, causing the sliding plate to move the corresponding two second plates towards the direction of the fixing hole. Conversely, if the bidirectional threaded rod is rotated in the opposite direction, the two first push blocks move towards each other. At this time, the second push blocks move downward under their own weight, and the sliding plate slides along the sliding hole under its own weight, causing the corresponding second plates to move away from the fixing hole.

[0023] Preferably, the sliding member further includes a reset member, with each sliding plate and the second push block corresponding to a reset member. The reset member is used to drive the sliding plate to slide away from the fixing hole or to drive the second push block to slide away from the sliding plate.

[0024] By adopting the above technical solution, when the first push block releases its pushing force on the second push block, the second push block and the sliding plate will automatically slide and reset under their own weight and the drive of the reset component, thereby improving the convenience and efficiency of the reciprocating sliding of the second plate.

[0025] Preferably, there are two insertion rods, and the insertion rods are slidably connected to the substrate along the length of the insertion hole. The sliding component also includes a linkage rod disposed on the top of the second push block, a third push block disposed at the end of the linkage rod, and a return spring disposed corresponding to each insertion rod. The third push block is located between the two insertion rods, and the insertion rods and the third push block are in close contact with each other. The return spring is connected between the insertion rod and the corresponding substrate. The extension and retraction direction of the return spring is parallel to the sliding direction of the insertion rod, and when the return spring is not deformed, the insertion rod is completely inserted into the substrate.

[0026] By adopting the above technical solution, when the second push block is pushed upward by the first push block, the linkage rod and the third push block move upward and push against the two insertion rods, so that the two insertion rods move in a direction away from each other and are inserted into the corresponding insertion holes of the pressure plate, thereby fixing the pressure plate to the substrate. When the second push block drives the linkage rod and the third push block to move downward, the third push block releases the pressure on the insertion rods, so that the insertion rods retract back into the substrate under the force of the return spring. At this time, the pressure plate can be detached from the substrate to achieve disassembly.

[0027] In summary, this application includes at least one of the following beneficial technical effects: When it is necessary to remove the crimped composite pipe and its connectors, first remove the outer crimping pad and outer crimping mold from the mold connecting plate. If the maximum outer diameter of the connector is smaller than the inner diameter of the fixing hole, the composite pipe and its connectors can be passed through the fixing hole along the axis of the fixing hole to achieve disassembly. If the maximum outer diameter of the connector is larger than the inner diameter of the fixing hole (e.g., if the connector has a flange and the outer diameter of the flange is larger than the inner diameter of the fixing hole), the composite pipe can be passed through the clearance hole so that the composite pipe and its connectors can be disassembled radially along the fixing hole. In summary, the crimping machine provided in this application is suitable for crimping and disassembling connectors and composite pipes with different outer diameters. Attached Figure Description

[0028] Figure 1 This is a schematic diagram in the background art used to illustrate the structure of an existing crimping machine.

[0029] Figure 2 This is a schematic diagram of the structure of a crimping machine for connecting continuous composite pipes in the internal expansion state, as shown in Example 1.

[0030] Figure 3 This is a cross-sectional view of a crimping machine for connecting continuous composite pipes in Embodiment 1 under internal expansion conditions.

[0031] Figure 4 This is a cross-sectional view of a crimping machine for connecting continuous composite pipes in Example 1, in the external crimping state.

[0032] Figure 5 This is a structural diagram in Embodiment 1 illustrating the connection relationship between the mold connecting plate, the outer buckle pad, the outer buckle mold, and the fixing components.

[0033] Figure 6 This is an exploded view of Embodiment 1 illustrating the connection relationship between the mold connecting plate, the outer buckle pad, the outer buckle mold, and the fixing components.

[0034] Figure 7 This is a cross-sectional view in Embodiment 1 used to illustrate the connection relationship between the mold connecting plate, the outer buckle pad, the outer buckle mold, and the fixing component.

[0035] Figure 8 This is a schematic diagram in Embodiment 2 illustrating the connection relationship between the mold connecting plate, the outer buckle pad, the outer buckle mold, and the fixing components.

[0036] Figure 9 This is an exploded view of Embodiment 2 illustrating the connection relationship between the mold connecting plate, the outer buckle pad, the outer buckle mold, and the fixing components.

[0037] Figure 10This is a cross-sectional view in Embodiment 2 used to illustrate the positional relationship between the second plate, connecting rod, and sliding component.

[0038] Figure 11 This is a cross-sectional view in Embodiment 2 used to illustrate the positional relationship between the insertion rod and the third pushing block.

[0039] Figure 12 yes Figure 11 The diagram below is an enlarged view showing the structure at point A.

[0040] Explanation of reference numerals in the attached drawings: 1. Crimping mechanism; 11. Mold connecting plate; 111. Base plate; 1111. Insertion hole; 1112. Positioning hole; 112. Pressure plate; 113. Fixing hole; 114. Clearance hole; 115. Sliding hole; 116. Cavity; 12. Outer clamping pad; 121. Outer clamping plate; 1211. Limiting groove; 122. First baffle; 1221. First dividing plate; 1222. Positioning block; 123. Third baffle; 124. Second baffle; 1241. Second dividing plate; 125. Connecting rod; 13. Outer clamping mold; 131. Mold parting; 132. 14. Through hole; 15. Hydraulic cylinder; 16. Connecting plate; 17. Internal expansion connecting rod; 18. Internal expansion head; 19. Internal expansion support sleeve; 101. Support cover; 102. Internal expansion transition ring; 103. External push rod; 2. Fixing assembly; 21. Fixing bolt; 22. Sliding part; 221. Bidirectional threaded rod; 2211. Handle; 222. Locking rod; 223. Sliding plate; 224. First push block; 225. Second push block; 226. Reset part; 23. Insert rod; 24. Linkage rod; 25. Third push block; 26. Reset spring; 3. Connector; 4. Composite tube. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 2-12 This application will be described in further detail.

[0042] This application discloses a crimping machine for connecting continuous composite pipes, which is used to connect the continuous composite pipe 4 and the connector 3 through internal expansion and external crimping. Specifically, after the end of the composite pipe 4 is inserted into the end of the connector 3, internal expansion is used to expand the inner wall of the connector 3 so that the inner wall of the connector 3 is pressed against the inner wall of the composite pipe 4, and external crimping is used to crimp the outer peripheral wall of the connector 3 so that the outer peripheral wall of the connector 3 is pressed against the outer peripheral wall of the composite pipe 4, thereby fixing the connector 3 to the end of the composite pipe 4. The connector 3 in the embodiment of this application has a flange, and the crimping machine disclosed in this application is suitable for connecting connector 3 and composite pipe 4 of any outer diameter.

[0043] Reference Figure 2 and Figure 3The crimping machine for continuous composite pipe connection includes a crimping mechanism 1. The crimping mechanism 1 includes a hydraulic cylinder 14, a connecting plate 15, an internal expansion connecting rod 16, an internal expansion head 17, an internal expansion support sleeve 18, and a mold connecting plate 11. The cylinder body of the hydraulic cylinder 14 is fixedly connected to the side wall of the connecting plate 15 by bolts. The piston rod of the hydraulic cylinder 14 passes through the connecting plate 15. The connecting plate 15 and the mold connecting plate 11 are fixedly connected by a connecting rod through a nut to achieve a fixed connection between the connecting plate 15 and the mold connecting plate 11.

[0044] Reference Figure 2 , Figure 3 and Figure 4 The clamping mechanism 1 also includes an outer clamping push rod 19. Both the outer clamping push rod 19 and the inner expansion connecting rod 16 have connecting parts at their ends. The connecting parts are threaded. Both the outer clamping push rod 19 and the inner expansion connecting rod 16 can be threaded into the threaded holes pre-set at the drive end of the hydraulic cylinder 14. The other end of the outer clamping push rod 19 has an opening for the insertion of the connector 3. The other end of the inner expansion connecting rod 16 can be threaded into the middle of the inner expansion head 17. The inner expansion support sleeve 18 is located around the inner expansion connecting rod 16. The inner expansion support sleeve 18 includes a support cover 181 and an inner expansion transition ring 182 fixedly connected to the end of the support cover 181. One end of the support cover 181 away from the inner expansion transition ring 182 is inserted into the ring hole pre-set on the side wall of the connecting plate 15. The other end of the inner expansion transition ring 182 has a notch for the insertion of the connector 3, so that the connector 3 can be supported and fixed through the inner expansion support sleeve 18 and the connecting plate 15.

[0045] Reference Figure 5 and Figure 6 The mold connecting plate 11 includes a base plate 111 and a pressure plate 112. A clearance hole 114 is provided through the top wall of the base plate 111. The pressure plate 112 is located above the base plate 111 and is inserted into the clearance hole 114. The pressure plate 112 and the base plate 111 together form a fixing hole 113. (Refer to clamping mechanism 1) Figure 2 It also includes a fixing component 2, and an outer buckle pad 12 and an outer buckle mold 13 inserted into the fixing hole 113. The fixing component includes a plug rod 23. In this embodiment 1, there are 2 plug rods 23, which are inserted through the connection between the pressure plate 112 and the base plate 111 so that the pressure plate 112 is fixedly covered on the base plate 111. The fixing component 2 is also used to fix the outer buckle pad 12 into the fixing hole 113.

[0046] Reference Figure 6 and Figure 7The outer buckle plate 12 includes a plurality of outer buckle plates 121 and a plurality of first baffles 122. The outer buckle plates 121 and the first baffles 122 are arranged in a one-to-one correspondence. In this embodiment 1, the number of outer buckle plates 121 and the number of first baffles 122 are both 3. Each first baffle 122 includes two first sub-plates 1221. The outer buckle 121 is located between the two corresponding first sub-plates 1221. The first sub-plates 1221 are located around the fixing hole 113 and fit against the side wall of the connection between the mold connecting plate 11 and the outer buckle 121. The fixing component 2 includes several fixing bolts 21. The fixing bolts 21 are set one-to-one with the first sub-plates 1221. The fixing bolts 21 pass through the corresponding first sub-plates 1221 and are threaded onto the mold connecting plate 11 to prevent the outer buckle 121 from falling out of the fixing hole 113. Optionally, a positioning block 1222 can be integrally formed on the side wall of each first sub-plate 1221. A positioning hole 1112 for the positioning block to be inserted is opened on the side wall of the mold connecting plate 11. By inserting the positioning block 1222 into the positioning hole 1112, the installation position of the first sub-plate 1221 relative to the mold connecting plate 11 can be quickly and accurately positioned.

[0047] Reference Figure 3 , Figure 6 and Figure 7 All the outer buckle plates 121 together form a ring, and the outer buckle mold 13 is inserted in the middle of the outer buckle plate 121. The outer buckle mold 13 includes two symmetrically arranged parting molds 131. All the parting molds 131 together form a through hole 132, and the inner diameter of the through hole 132 gradually decreases in the direction away from the piston rod of the oil cylinder 14. The composite tube 4 can pass through the through hole 132 and be inserted into the preset mounting hole at the end of the connector 3.

[0048] The implementation principle of the crimping machine for connecting continuous composite pipes in Embodiment 1 of this application is as follows: First, the end of the internal expansion connecting rod 16 is threaded into the end of the piston rod of the oil cylinder 14. Then, the internal expansion head 17 is threaded onto the end of the internal expansion connecting rod 16. Then, the joint 3 and the connecting plate 15 are fixed by the internal expansion support sleeve 18. The end of the composite pipe 4 is inserted through the mold connecting plate 11 and inserted into the end of the joint 3. The oil cylinder 14 is started so that it drives the internal expansion head 17 to move towards the connecting plate 15. During the movement, the internal expansion head 17 presses against the inner wall of the joint 3 so that the inner wall of the joint 3 is pressed tightly against the inner wall of the composite pipe 4; thus completing the internal expansion operation. Next, move the connector 3 away from the cylinder 14 to increase the distance between the connector 3 and the connecting plate 15, so that the inner expansion support sleeve 18, the inner expansion connecting rod 16, and the inner expansion head 17 can be separated from the connecting plate 15. Then, thread the outer buckle push rod 19 into the piston rod end of the cylinder 14. Insert the connector 3 into the opening at the end of the outer buckle push rod 19 so that the outer buckle push rod 19 and the connecting plate 15 can support the connector 3. Then, push the outer buckle push rod 19 and the connector 3 through the piston rod of the cylinder 14 so that the connector 3 is inserted into the through hole 132. The outer peripheral wall of the connector 3 is squeezed by the inner wall of the through hole 132 and pressed against the outer peripheral wall of the composite pipe 4 to realize the outer buckle operation. After completing the internal expansion and external buckling operation, first remove the pressure plate 112 from the mold connecting plate 11 to open the relief hole 114. Then, remove the first partition plate 1221, the outer buckling plate 121 and the mold parting 131 near the relief hole 114. Finally, remove the composite pipe 4 and the connector 3 connected to it radially through the relief hole 114 along the fixing hole 113. This structure and disassembly method are suitable for connectors 3 with different outer diameters. Even if the connector 3 has a flange and the outer diameter of the flange is larger than the inner diameter of the fixing hole 113, the buckling operation and loading and unloading operation can still be successfully achieved through the structure and corresponding disassembly method disclosed in Embodiment 1 of this application.

[0049] Example 2 Reference Figure 8 and Figure 9 The difference between Embodiment 2 and Embodiment 1 is that the outer buckle plate 12 includes a third baffle 123, several second baffles 124, and several outer buckle plates 121; there are three outer buckle plates 121, all of which are inserted into the fixing holes 113. The third baffle 123 is fixedly connected to the side walls on both sides of the pressure plate 112. There are two second baffles 124, which are symmetrically arranged with the fixing holes 113 as the center. Each second baffle 124 includes two second sub-plates 1241, which are distributed on both sides of the base plate 111. The two second sub-plates 1241 belonging to the same second baffle 124 are welded together with a connecting rod 125. The side wall of the base plate 111 is provided with a sliding hole 115 for each connecting rod 125 to be inserted. The length direction of the sliding hole 115 is parallel to the radial direction of the fixing hole 113.

[0050] Reference Figure 9 and Figure 10A cavity 116 is formed in the substrate 111, and the cavity 116 is connected to the sliding hole 115. The fixing component 2 includes a sliding member 22, which is located in the cavity 116. The sliding member 22 includes a bidirectional threaded rod 221, a locking member, a sliding plate 223, a first push block 224, and a second push block 225. The bidirectional threaded rod 221 is rotatably connected in the cavity 116. One end of the bidirectional threaded rod 221 passes through the substrate 111 and is welded with a handle 2211. The locking member is specifically a locking rod 222 that is slidably connected to the mold connecting plate 11. A locking hole is formed through the side wall of the handle 2211 for the locking rod 222 to be inserted. The bidirectional threaded rod 221 is stopped from rotating by inserting the locking rod 222 into the locking hole.

[0051] Reference Figure 10 The outer surface of the bidirectional threaded rod 221 is provided with two threaded segments with opposite thread directions. There are two first push blocks 224, which are threaded onto the bidirectional threaded rod 221. There are two second push blocks 225 and two sliding plates 223, and the second push blocks 225, sliding plates 223, and first push blocks 224 are arranged in a one-to-one correspondence. The lower end of the second push block 225 is attached to the end of the corresponding first push block 224, and the attachment position is provided with an inclined push surface. The other end of the second push block 225 is attached to the end of the corresponding sliding plate 223, and the attachment position is also provided with an inclined surface.

[0052] Reference Figure 9 and Figure 10 The sliding plate 223 is slidably connected to the sliding hole 115, and the end of the sliding plate 223 is welded to the connecting rod 125. When the bidirectional threaded rod 221 rotates, the two first push blocks 224 will move towards each other or away from each other. When the two first push blocks 224 move away from each other, the second push block 225 moves upward under the push of the corresponding first push block 224 and pushes the sliding plate 223, so that the sliding plate 223 drives the connecting rod 125 and the two second sub-plates 1241 connected to the connecting rod 125 to slide towards the fixing hole 113, thereby making the outer buckle plate 121 clamped between the second sub-plates 1241 to achieve the fixing of the outer buckle plate 121.

[0053] Reference Figure 9 and Figure 10The sliding member 22 also includes a reset member 226. The sliding plate 223 and the second push block 225 each correspond to a reset member 226. The reset member 226 is specifically a spring. One end of the spring is welded to the side wall of the second push block 225 or the sliding plate 223, and the other end is welded to the inner wall of the cavity 116. The extension and contraction direction of the spring is parallel to the movement direction of the second push block 225 or the sliding plate 223. When the spring is not deformed, the second plate 1241 is attached to the end wall of the outer buckle plate 121. Conversely, when the two first push blocks 224 move towards each other, the second push block 225 and the sliding plate 223 will move away from the fixing hole 113 under the drive of the corresponding reset member 226, so that the second plate 1241 is disengaged from the contact with the outer buckle plate 121.

[0054] Reference Figure 9 , Figure 11 and Figure 12 The sidewalls at the connection between the pressure plate 112 and the base plate 111 are provided with two insertion holes 1111. The fixing component 2 also includes insertion rods 23, with two insertion rods 23 corresponding to each insertion hole 1111. The insertion rods 23 are slidably connected to the insertion holes 1111 on the base plate 111, and the sliding direction of the insertion rods 23 is parallel to the length direction of the insertion holes 1111. The sliding component 22 also includes a linkage rod 24, a third push block 25, and a return spring 26. The return spring 26 is arranged one-to-one with the insertion rods 23. One end of the return spring 26 is welded to the insertion rod 23, and the other end is welded to the inner wall of the insertion hole 1111. The extension and retraction direction of the return spring 26 is parallel to the sliding direction of the insertion rod 23. When the return spring 26 is not deformed, the insertion rod 23 is fully inserted into the insertion hole 1111 on the base plate 111.

[0055] Reference Figure 10 , Figure 11 and Figure 12 The linkage rod 24, the third push block 25, and the second push block 225 are arranged in a one-to-one correspondence. The top of the second push block 225 is welded to the linkage rod 24, and the other end of the linkage rod 24 is welded to the third push block 25. The third push block 25 is inserted through the insertion hole 1111 on the substrate 111 and is located between the two insertion rods 23. The insertion rods 23 and the third push block 25 are provided with a clearance surface. When the second push block 225 moves upward under the push of the first push block 224, the third push block 25 and the linkage rod 24 move upward and push the insertion rod 23, so that the insertion rod 23 moves in a direction away from each other and inserts into the insertion hole 1111 on the pressure plate 112. Thus, the operation of fixing the pressure plate 112 onto the substrate 111 is realized by the insertion rod 23.

[0056] The working principle of the crimping machine for continuous composite pipe connections disclosed in Embodiment 2 of this application is as follows: When loading and unloading the outer crimping pad 12, the outer crimping mold 13, and the mold connecting plate 11, the outer crimping pad 12 is first inserted into the fixing hole 113 of the base plate 111, and then the pressure plate 112 is placed on top of the base plate 111 so that the pressure plate 112 is inserted into the clearance hole 114; then the handle 2211 is rotated so that the bidirectional threaded rod 221 drives the two first push blocks 224 to move away from each other, and the second push block 225 moves upward under the pressure of the first push block 224. At this time, the sliding plate 223 is subjected to the second push. The pressing of block 225 causes the second sub-plate 1241 connected to it to move toward the fixing hole 113 and fit against the outer periphery of the outer buckle plate 121. During this process, the third push block 25 pushes the insertion rod 23 during the upward movement of the linkage rod 24 and the second push block 225, so that the end of the insertion rod 23 is inserted into the insertion hole 1111 of the pressure plate 112, thereby realizing the fixed connection between the pressure plate 112 and the base plate 111. Then, the rotation position of the bidirectional threaded rod 221 is fixed by the locking member. Finally, the outer buckle mold 13 is inserted into the middle of the outer buckle plate 121, thereby realizing the connection of the outer buckle pad 12, the outer buckle mold 13 and the mold connecting plate 11.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A crimping machine for connecting continuous composite pipes, comprising a crimping mechanism (1) for crimping a composite pipe (4) and a connector (3), the crimping mechanism (1) comprising a mold connecting plate (11), a fixing component (2), and an outer crimping pad (12) and an outer crimping mold (13) sequentially inserted from the outside to the inside of the mold connecting plate (11), characterized in that: The mold connecting plate (11) has a fixing hole (113) in the middle for inserting the outer buckle pad (12) and the outer buckle mold (13). The fixing component (2) is used to fix the insertion position of the outer buckle pad (12) and the outer buckle mold (13). The mold connecting plate (11) has a clearance hole (114) on its side wall for the composite pipe (4) to pass through. The fixing hole (113) and the clearance hole (114) are connected. The mold connecting plate (11) includes a base plate (111) and a pressure plate (112). The fixing hole (113) is located in the middle of the base plate (111), and the clearance hole (114) penetrates the base plate (111). The pressure plate (112) is inserted into the clearance hole (114). The outer buckle plate (12) includes a third baffle (123) connected to both sides of the pressure plate (112), a plurality of second baffles (124), and a plurality of outer buckle plates (121). The outer buckle plates (121) are inserted into the mold connecting plate (112). Located within the fixing hole (113), each of the second baffles (124) includes two second sub-plates (1241) respectively located on both sides of the outer buckle plate (121). The fixing assembly (2) includes a sliding member (22) and a plug rod (23). The sliding member (22) is used to drive the second sub-plates (1241) to move away from or closer to the fixing hole (113). The sidewalls of the pressure plate (112) and the base plate (111) are jointly provided with a plug hole (1111) for inserting the plug rod (23). There are two second baffles (124), and two second sub-plates (1241) belonging to the same second baffle (124) are connected by a connecting rod (125). The side wall of the base plate (111) is provided with a sliding hole (115) for the connecting rod (125) to slide. The sliding member (22) includes a bidirectional threaded rod (221), a locking member, a sliding plate (223), a first push block (224), and a second push block (225). The bidirectional threaded rod (221) is rotatably connected to the base plate (111). The locking member is used to fix the rotation position of the bidirectional threaded rod (221). The threads at both ends of the bidirectional threaded rod (221) are opposite in direction. Each end of the bidirectional threaded rod (221) is threaded with a first push block (224). The second push block (225), the first push block (224), and the second baffle (124) are arranged in a one-to-one correspondence. One end of the second push block (225) is in contact with the corresponding first push block (224), and the other end is in contact with the end of the corresponding sliding plate (223). The sliding member (22) also includes a reset member (226). The sliding plate (223) and the second push block (225) each correspond to a reset member (226). The reset member (226) is used to drive the sliding plate (223) to slide away from the fixing hole (113) or to drive the second push block (225) to slide away from the sliding plate (223). The number of the insertion rods (23) is 2, and the insertion rods (23) are slidably connected to the substrate (111) along the length direction of the insertion hole (1111). The sliding member (22) also includes a linkage rod (24) disposed on the top of the second push block (225), a third push block (25) disposed at the end of the linkage rod (24), and a reset spring (26) disposed one-to-one with each insertion rod (23). The third push block (25) is located between the two insertion rods (23), the insertion rods (23) and the third push block (25) are in close contact with each other, and the reset spring (26) is connected between the insertion rod (23) and the corresponding substrate (111). The extension and retraction direction of the reset spring (26) is parallel to the sliding direction of the insertion rod (23), and when the reset spring (26) is not deformed, the insertion rod (23) is completely inserted into the substrate (111).

2. The continuous composite pipe splicing joint crimping machine of claim 1, wherein: The clamping mechanism (1) includes a hydraulic cylinder (14), a connecting plate (15), an internal expansion connecting rod (16), an internal expansion head (17), an internal expansion support sleeve (18), and an external clamping push rod (19); the cylinder body of the hydraulic cylinder (14) is connected to the connecting plate (15), the mold connecting plate (11) is connected to the side of the connecting plate (15) away from the hydraulic cylinder (14), and the joint (3) is located between the connecting plate (15) and the mold connecting plate (11); the internal expansion connecting rod (16) and the external clamping push rod (19) Each end is provided with a connector for detachable connection to the drive end of the oil cylinder (14). The other end of the inner expansion connecting rod (16) is detachably connected to the inner expansion head (17). The inner expansion support sleeve (18) is sleeved around the inner expansion connecting rod (16). One end of the inner expansion support sleeve (18) is detachably connected to the connecting plate (15), and the other end is detachably connected to the end of the connector (3). The outer push rod (19) has an opening at one end away from the connecting plate (15) for the end of the connector (3) to be inserted.

3. The continuous composite pipe splicing joint crimping machine of claim 1, wherein: The outer die (13) includes at least symmetrically arranged parting dies (131), and all the parting dies (131) together form a through hole (132) through which the end of the composite pipe (4) or the connector (3) passes.

4. The continuous composite pipe splicing joint crimping machine of claim 1, wherein: The outer buckle plate (12) includes a plurality of outer buckle plates (121) and a plurality of first baffles (122). The outer buckle plates (121) and the first baffles (122) are arranged in a one-to-one correspondence. Each first baffle (122) includes two first sub-plates (1221). The outer buckle plate (121) is disposed between the corresponding two first sub-plates (1221). The first sub-plate (122) corresponding to the side of the outer buckle plate (121) away from the joint (3) is... 1) A limiting groove (1211) is provided on the upper part for insertion into the outer buckle mold (13); the first partition plate (1221) is attached to the joint between the corresponding outer buckle plate (121) and the mold connecting plate (11); the fixing component (2) includes a number of fixing bolts (21); the fixing bolts (21) are set one-to-one with the first baffle (122); the fixing bolts (21) pass through the corresponding first baffle (122) and are threaded onto the mold connecting plate (11).

5. The continuous composite pipe splicing joint crimping machine of claim 4, wherein: The mold connecting plate (11) includes a base plate (111) and a pressure plate (112). The base plate (111) and the pressure plate (112) together form a fixing hole (113). The clearance hole (114) is located on the base plate (111), and the pressure plate (112) is inserted into the clearance hole (114). The fixing component (2) also includes a plug rod (23). The side wall of the pressure plate (112) has a notch for inserting the end of the base plate (111). The plug rod (23) is inserted into the side wall of the base plate (111) near the notch, and the plug rod (23) passes through the pressure plate (112).

6. The continuous composite pipe splicing joint crimping machine of claim 4, wherein: Each of the first sub-plates (1221) is provided with a positioning block (1222) on the side wall facing the mold connecting plate (11), and the side wall of the mold connecting plate (11) is provided with a positioning hole (1112) for the positioning block (1222) to be inserted.

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