Spiral pipe bending device

Abstract

The present invention discloses a spiral tube bending device, which relates to the field of pipe processing equipment. It includes a frame and a spiral barrel, a spiral groove is provided on the outer side of the spiral barrel, and the frame is provided with a driving member for driving the spiral barrel to rotate, and also includes: a support barrel parallel to the spiral barrel, and the support barrel is provided with a guide groove corresponding to the spiral groove along the circumferential direction; a storage barrel, which is located above the frame, and a rigid filling material is placed in the storage barrel, and a discharge pipe is connected to the lower end of the storage barrel, and a discharge head is connected to the lower end of the discharge pipe; a plurality of support members, which are all located below the storage barrel and arranged in the direction from the storage barrel to the spiral barrel, and the support members are used to support the raw material of the spiral tube, and the guide members are located between the support members and the spiral barrel, and are used to push the raw material of the spiral tube from the support members to the spiral barrel; a plugging member is used to plug the port of the raw material of the spiral barrel. The present application has the effect of reducing the probability of wrinkles in the spiral tube during processing and improving product quality.

Description

Technical Field

[0001] The invention relates to the field of pipe processing equipment, in particular to a spiral pipe bending device. Background Art

[0002] Spiral tube is a kind of pipe with a spiral structure. Due to its special structure, it can effectively save space and improve its ability to withstand pressure. Therefore, it is widely used in industry and construction, such as the transportation of cold and hot fluids in heat exchangers, or catheters and stents in medical equipment.

[0003] Related technologies can refer to the Chinese patent with announcement number CN212551182U, which discloses a spiral pipe bending machine for spiral coil processing, including a base and a column fixed to one end of the base, a C-shaped frame is provided above the base, a spiral pipe bending tube is vertically provided in the C-shaped groove of the C-shaped frame, a spiral threaded pipe bending groove is provided from bottom to top on the outer wall of the spiral pipe bending tube, a vertical vertical plate is fixed to the column, a guide seat is provided on the side of the vertical plate closer to the opening end of the C-shaped frame, and a guide through hole is provided on the guide seat. The device is provided with a lower connecting seat with a limiting column, an upper connecting seat with a limiting column, an upper mounting seat and a rotating seat, and cooperates with a lifting electric cylinder. When processing spiral coils of different specifications, it is convenient to quickly disassemble the spiral pipe bending tube. By providing a C-shaped frame, a rotating seat with a connecting block, and a ball bearing, the stability of the spiral pipe bending tube during the processing process is effectively enhanced, and the occurrence of defective and waste products is reduced, thereby saving processing costs.

[0004] Regarding the above-mentioned related technologies, when processing some pipes with thinner walls, due to the influence of pressure on the pipes during the bending process, the side of the pipe raw material close to the spiral bending tube is prone to wrinkles along the bending direction of the pipe, affecting the product quality of the spiral bending pipe. Summary of the invention

[0005] In order to reduce the probability of wrinkles on the spiral tube during processing and improve product quality, the present application provides a spiral tube bending device.

[0006] The present application provides a spiral tube bending device, which adopts the following technical solution:

[0007] A spiral tube bending device comprises a frame and a spiral drum, the spiral drum is provided with a spiral groove along the circumferential direction and is rotatably connected with the frame, the frame is provided with a driving member for driving the spiral drum to rotate, the frame is also provided with a guide member for conveying the spiral tube raw material to the spiral drum, and also comprises: a support drum, which is located below the spiral drum and arranged parallel to the spiral drum, the support drum is provided with a guide groove corresponding to the spiral groove along the circumferential direction; a storage drum, which is located above the frame and is at the end of the frame away from the spiral drum, a rigid filling material is placed in the storage drum, a discharge pipe is connected to the lower end of the storage drum, and a discharge head for connecting to the inner hole of the spiral tube raw material is provided at the lower end of the discharge pipe; a plurality of support members, which are all located below the storage drum and are arranged in the direction from the storage drum to the spiral drum, the support members are used to support the spiral tube raw material, the guide member is located between the support member and the spiral drum, and is used to push the spiral tube raw material from the support member to the spiral drum; a blocking member, which is located at both ends of the spiral tube raw material, and is used to block the port of the spiral drum raw material.

[0008] By adopting the above technical solution, several supporting members cooperate to support the spiral tube raw material, so that one end of the spiral tube raw material points to the connection point between the spiral groove and the guide groove. The end of the spiral tube raw material close to the spiral barrel is blocked by the plugging member, and the discharge head is connected with the end of the spiral tube raw material away from the spiral barrel, so that the filling material enters the spiral tube raw material along the discharge pipe and the filling pipe under the action of gravity. When the spiral tube raw material is filled with the filling material, the end of the spiral tube raw material away from the spiral barrel is blocked by the plugging member. The spiral tube raw material is guided and transported into the spiral groove of the spiral barrel. Under the support of the frame, the driving member drives the spiral barrel to rotate to limit and guide the spiral tube through the spiral groove. At this time, the support barrel supports the spiral tube raw material through the guide groove, so that the spiral tube raw material moves around the spiral barrel along the spiral groove, thereby forming a spiral structure. During the deformation of the spiral tube raw material, the support wheel limits the position of the spiral tube raw material, so that the spiral tube raw material fits the inner wall of the spiral groove, thereby reducing the probability of the spiral tube raw material protruding outward on the side close to the spiral barrel; at the same time, the filling material supports the inner wall of the spiral tube raw material, reduces the probability of the spiral tube raw material being concave, which is beneficial to reduce the probability of wrinkles in the spiral tube raw material during the bending process, thereby improving the quality of the final product.

[0009] Optionally, the support member includes a support rod, a mounting plate and a plurality of guide wheels. The support rod is slidably connected to the frame vertically, the frame is provided with a pushing member for driving the support rod to move vertically, the mounting plate is rotatably connected to the upper end of the support rod vertically, and the plurality of guide wheels are divided into two groups. The two groups of guide wheels are vertically arranged and are both rotatably connected to the mounting plate.

[0010] By adopting the above technical solution, initially, all the mounting plates are located in the same plane. At this time, the spiral tube raw material is passed through two sets of guide wheels on the same mounting plate, so that the guide wheels support and limit the spiral tube raw material. When pouring filler into the spiral tube raw material, the support rod close to the spiral cylinder is driven up by the pushing member. When the support rod moves, it drives the mounting plate to rotate, thereby pushing the end of the spiral tube raw material away from the spiral cylinder to be lifted, thereby facilitating the pouring of filler into the spiral tube raw material, which is beneficial to improving the filling compactness of the filler.

[0011] Optionally, the guide member includes a fixed plate, a driving wheel, a driving motor and a plurality of supporting wheels. The fixed plate is arranged at the upper end of the frame. The plurality of supporting wheels are rotatably connected to the upper end of the fixed plate and are arranged obliquely from top to bottom along the direction of the spiral cylinder pointed by the support member. The driving wheel is located on the side of the supporting wheel away from the frame and is rotatably connected to the fixed plate. The driving motor is fixedly connected to the fixed plate for driving the driving wheel to rotate. An elastic layer is provided on the outer side of the driving wheel.

[0012] By adopting the above technical solution, initially, when the spiral tube raw material passes through all the guide wheels, its axial direction is deviated from the arrangement direction of the support wheels, and its end close to the spiral cylinder contacts the elastic layer. The elastic layer is used to increase the friction between the driving wheel and the spiral tube raw material. At this time, the driving wheel limits the displacement of the spiral tube raw material along the axial direction. After the filling is completed, the position of the spiral tube raw material is adjusted so that the axis of the spiral tube raw material is parallel to the arrangement direction of the support wheels. When the driving motor drives the driving wheel to rotate, the driving wheel drives the spiral tube raw material to move through the elastic layer, so that it moves to the connection between the spiral groove and the guide groove under the guidance of the support wheel, thereby realizing the transportation of the spiral tube raw material.

[0013] Optionally, the sealing member includes a fixed plug one and a fixed plug two, the outer diameters of the fixed plug one and the fixed plug two are smaller than the inner diameter of the spiral tube raw material, the fixed plug two is opened with a feed channel, one end of the feed channel is located at any end face of the fixed plug two along the axial direction, and the other end is located at the outer edge of the fixed plug two, and the discharge head is adapted to the feed channel.

[0014] By adopting the above technical scheme, fixed plug one and fixed plug two cooperate to seal the two ends of the spiral tube raw material, and fixed plug two is located away from the spiral tube. When conveying filler into the spiral tube raw material, the discharge head is inserted into the feeding channel so that the filler moves along the feeding channel. Fixed plug two blocks the filler that spreads to the end of the spiral tube raw material, which is beneficial to reduce the gap in the spiral tube raw material and improve the filling effect.

[0015] Optionally, the outer edges of the fixed plug one and the fixed plug two are circumferentially coated with an anti-slip layer, the anti-slip layer is made of elastic material, the anti-slip layer of the fixed plug one is provided with an avoidance port connected to the feed channel, the fixed plug one and the fixed plug two are fixed with threaded columns on the sides away from each other, the outer side of the threaded column is threadedly connected with a pushing block, the anti-slip layer extends toward the pushing block along the axis of the threaded column, the pushing block is circumferentially provided with a guide ring, and the outer diameter of the guide ring gradually increases in the direction of the threaded column away from the anti-slip layer.

[0016] By adopting the above technical solution, the anti-skid layer is conducive to improving the connection stability between the fixing plug 1 and the fixing plug 2 and the spiral tube raw material. When the fixing plug 1 and the fixing plug 2 are both in the spiral tube raw material, by rotating the push block, the push block drives the guide ring to move along the threaded column. When the guide ring moves, it pushes the anti-skid layer to fit the inner wall of the spiral tube raw material, which is conducive to further improving the connection stability between the fixing plug 1 and the fixing plug 2 and the spiral tube raw material.

[0017] Optionally, the discharge pipe includes a positioning tube and a moving tube, the positioning tube is connected to the lower end of the storage tube, the moving tube is sleeved on the outside of the positioning tube and is slidably connected to the positioning tube along the vertical direction, the storage tube is provided with a moving part for driving the moving tube to move, the discharge head includes a mounting tube and a sealing plate, the mounting tube is fixedly connected to the lower end of the moving tube, the sealing plate is located on the side of the mounting tube away from the spiral tube, and is inclined from the outer edge of the mounting tube to the axis from top to bottom, a conical portion corresponding to the sealing plate is fixed to the lower end of the mounting tube, and the mounting tube is provided with an elastic member 1, the elastic member 1 is used to push the sealing plate close to the conical portion, and the mounting tube is sealed when the sealing plate conflicts with the conical portion.

[0018] By adopting the above technical solution, initially, the sealing plate contacts the tapered portion under the action of the elastic member 1, and the filling material in the storage tube flows along the positioning tube, the moving tube and the mounting tube. When the conveying channel is directly opposite to the tapered portion, the moving tube is driven downward by the moving member, so that the mounting tube drives the tapered portion and the sealing plate into the conveying channel, and the sealing plate stops when it contacts the side wall of the conveying channel. At this time, the tapered portion continues to move, and after the sealing plate is separated from the tapered portion, the filling material passes through the gap between the sealing plate and the tapered portion and enters the conveying channel, which is beneficial to improving the convenience of pouring the filling material.

[0019] Optionally, one end of the mounting plate away from the guide wheel is fixedly connected to a rotating shaft, the rotating shaft passes through the support plate and is rotatably connected to the support plate, and an elastic member 2 is provided on the outer side of the rotating shaft. When the elastic member 2 is in a natural state, the mounting plate is in a horizontal state.

[0020] By adopting the above technical solution, the second elastic member allows the mounting plate to remain horizontal in a natural state, thereby improving the convenience of placing the spiral tube raw material between the two sets of guide wheels.

[0021] Optionally, the rotating shaft is slidingly connected to the support plate along the axial direction, and there is a movable space between the mounting plate and the support plate to accommodate the deformation of the elastic member along the axial direction of the rotating shaft. A vibration motor is fixedly provided on any mounting plate, and the vibration motor drives the mounting plate to vibrate when working. The guide wheel is provided with an arc groove along the circumferential direction, and the spiral tube raw material is in contact with the inner wall of the arc groove when it is located between the two sets of guide wheels.

[0022] By adopting the above technical solution, the guide wheel limits the displacement of the spiral tube raw material along the diameter direction through the arc groove. When the vibration motor drives the mounting plate to vibrate, the mounting plate drives the spiral tube raw material to vibrate through the guide wheel, thereby improving the compactness of the filling material in the spiral tube raw material.

[0023] Optionally, the frame is fixed with a support block, which is located at one end of the support cylinder away from the driving member, and a support column is coaxially fixed to the support cylinder, which passes through the support block and is rotatably connected to the support block, and the upper end of the support block is connected to a moving block along the axial sliding of the support cylinder, and the moving block is vertically hinged with a support plate, and a rotating hole is opened along the support plate, and a rotating rod corresponding to the rotating hole is coaxially fixed to the spiral cylinder.

[0024] By adopting the above technical solution, the support block supports the support cylinder through the support column, thereby improving the rotation stability of the support cylinder. When the support plate is in a vertical state, the moving block is moved horizontally so that the support plate approaches or moves away from the rotating rod. When the rotating rod passes through the rotating hole, it is rotatably connected to the support plate. At this time, the support plate supports the rotating rod, thereby improving the working stability of the spiral cylinder.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Several supporting parts cooperate to support the spiral tube raw material, so that one end of the spiral tube raw material points to the connection point between the spiral groove and the guide groove. The end of the spiral tube raw material close to the spiral barrel is blocked by the plugging part, and the discharge head is connected with the end of the spiral tube raw material away from the spiral barrel, so that the filling material enters the spiral tube raw material along the discharge pipe and the filling pipe under the action of gravity. When the spiral tube raw material is filled with filling material, the end of the spiral tube raw material away from the spiral barrel is blocked by the plugging part. The spiral tube raw material is guided and transported into the spiral groove of the spiral drum. Under the support of the frame, the driving member drives the spiral drum to rotate to limit and guide the spiral tube through the spiral groove. At this time, the support drum supports the spiral tube raw material through the guide groove, so that the spiral tube raw material moves around the spiral drum along the spiral groove, thereby forming a spiral structure. During the deformation of the spiral tube raw material, the support wheel limits the position of the spiral tube raw material, so that the spiral tube raw material fits the inner wall of the spiral groove, thereby reducing the probability of the spiral tube raw material protruding outward on the side close to the spiral drum; at the same time, the filling material supports the inner wall of the spiral tube raw material, reducing the probability of the spiral tube raw material being concave, which is conducive to reducing the probability of wrinkles in the spiral tube raw material during the bending process, thereby improving the quality of the final product;

[0027] 2. Fixed plug 1 and fixed plug 2 cooperate to seal both ends of the spiral tube raw material, and fixed plug 2 is located away from the spiral tube. When conveying filler into the spiral tube raw material, the discharge head is inserted into the feeding channel to make the filler move along the feeding channel. Fixed plug 2 blocks the filler that spreads to the end of the spiral tube raw material, which is beneficial to reduce the gap in the spiral tube raw material and improve the filling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0029] Figure 2 It is a diagram intended to highlight the connection between the support rod and the frame.

[0030] Figure 3 It is a schematic diagram intended to highlight the structure of the storage cylinder.

[0031] Figure 4 yes Figure 3 Enlarged schematic diagram of part A.

[0032] Figure 5 It is a schematic diagram intended to highlight the structure of the plugging piece.

[0033] Description of reference numerals: 1, frame; 10, spiral tube raw material; 11, driving member; 12, guide member; 121, fixed plate; 122, driving wheel; 123, driving motor; 124, supporting wheel; 125, elastic layer; 13, pushing member; 14, moving plate; 141, slide groove; 15, supporting block; 151, moving block; 152, supporting plate; 153, rotating hole; 21, spiral cylinder; 211, spiral groove; 212, rotating rod; 22, supporting cylinder; 221, guide groove; 222, supporting column; 3, storage cylinder; 31, discharge pipe; 311 , positioning tube; 312, moving tube; 313, moving part; 32, discharge head; 321, mounting tube; 322, sealing plate; 323, tapered part; 324, elastic part 1; 4, support member; 41, support rod; 411, round rod; 42, mounting plate; 421, rotating shaft; 422, elastic part 2; 43, guide wheel; 431, arc groove; 44, vibration motor; 51, fixing plug 1; 52, fixing plug 2; 521, feeding channel; 53, anti-skid layer; 531, avoidance port; 54, threaded column; 541, push block; 542, guide ring. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0035] The embodiment of the present application discloses a spiral pipe bending device.

[0036] Example:

[0037] Reference Figure 1 and Figure 2 A spiral tube bending device includes a frame 1 and a spiral barrel 21. The spiral barrel 21 is arranged in a horizontal direction. The frame 1 is provided with a support frame in a vertical direction. The spiral barrel 21 is rotatably connected to the support frame. The frame 1 is provided with a driving member 11 for driving the spiral barrel 21 to rotate. In this embodiment, the driving member 11 is selected as a motor.

[0038] Reference Figure 1 and Figure 2 The frame 1 is also provided with a support cylinder 22, which is located at the lower end of the spiral cylinder 21 and is parallel to the spiral cylinder 21. The support cylinder 22 is rotatably connected to the support frame, and a gear set is provided between the spiral cylinder 21 and the support cylinder 22. When the spiral cylinder 21 rotates, the support cylinder 22 is driven to rotate synchronously through the gear set. A spiral groove 211 is provided on the outer side of the spiral cylinder 21 along the circumferential direction, and a guide groove 221 corresponding to the spiral groove 211 is provided on the outer edge of the support cylinder 22. On the side where the support cylinder 22 and the spiral cylinder 21 are close to each other, the spiral groove 211 and the guide groove 221 are connected to each other.

[0039] Reference Figure 1 and Figure 2The frame 1 is fixed with a support block 15, which is located at one end of the support tube 22 away from the support frame. The support tube 22 is coaxially fixed with a support column 222, which passes through the support block 15 and is rotatably connected to the support block 15. The frame 1 supports the support tube 22 through the support block 15, thereby improving the installation stability of the support tube 22. The upper end of the support block 15 is slidably connected with a moving block 151 along the axial direction of the support tube 22, and the upper end of the moving block 151 is vertically hinged with a support plate 152, and when the moving block 151 moves, it drives the support plate 152 to move.

[0040] Reference Figure 1 and Figure 2 A rotating rod 212 is coaxially fixed to one end of the spiral drum 21 away from the support frame, and a rotating hole 153 is opened in the horizontal direction of the support plate 152. When the moving block 151 is moved toward the spiral drum 21, the moving block 151 drives the support plate 152 to approach the rotating rod 212, so that the rotating rod 212 passes through and rotates and is rotatably connected with the support plate 152. The support plate 152 supports the spiral drum 21 through the rotating rod 212, which is beneficial to improve the rotation stability of the spiral drum 21.

[0041] Reference Figure 1 and Figure 3 The end of the frame 1 away from the spiral cylinder 21 is provided with a storage cylinder 3, which is installed above the frame 1. A bracket for supporting the storage cylinder 3 is fixedly provided at the upper end of the frame 1. Rigid fillers are placed in the storage cylinder 3. In this embodiment, the fillers are fine steel balls. A discharge pipe 31 is provided at the lower end of the storage cylinder 3. The discharge pipe 31 includes a vertically arranged positioning pipe 311 and a moving pipe 312. The positioning pipe 311 is fixedly connected to the lower end of the storage cylinder 3 and communicates with the storage cylinder 3. The fillers enter the positioning pipe 311 from the storage cylinder 3 under the action of gravity.

[0042] Reference Figure 3 and Figure 4 The moving tube 312 is sleeved on the outside of the positioning tube 311 and is vertically slidably connected to the positioning tube 311, and the filling material enters the moving tube 312 along the positioning tube 311. A moving member 313 is provided at the lower end of the storage tube 3, and the moving member 313 is used to drive the moving tube 312 to move along the positioning tube 311. The moving member 313 is a cylinder, which is vertically arranged, and the output end of the cylinder is fixedly connected to the moving tube 312. When the cylinder is working, it drives the moving tube 312 to move along the positioning tube 311.

[0043] Reference Figure 3 and Figure 4The discharge head 32 is located at the lower end of the moving tube 312. The discharge head 32 includes a mounting tube 321 and a sealing plate 322. The mounting tube 321 is fixedly connected to the lower end of the moving tube 312, and the filling material enters the mounting tube 321 along the moving tube 312. A conical portion 323 is fixedly arranged at the lower end of the mounting tube 321. The conical portion 323 is located at one end of the mounting tube 321 close to the spiral cylinder 21. The sealing plate 322 is located at the side of the conical portion 323 away from the spiral cylinder 21. The sealing plate 322 is inclined from top to bottom along the outer edge of the mounting tube 321 in the direction of the axis. When the sealing plate 322 conflicts with the conical portion 323, the mounting tube 321 is blocked.

[0044] Reference Figure 3 and Figure 4 , an elastic member 324 is provided between the sealing plate 322 and the mounting tube 321. The elastic member 324 is a spring. One end of the spring is fixedly connected to the sealing plate 322, and the other end is fixedly connected to the mounting tube 321. The elastic member 324 drives the sealing plate 322 to contact the tapered portion 323 in a natural state. When the filling material in the mounting tube 321 needs to be discharged, the sealing plate 322 is pushed to separate from the tapered portion 323. At this time, the elastic member 324 is deformed, and the filling material moves out from between the sealing plate 322 and the tapered portion 323 under the action of gravity. Furthermore, a spiral push plate is connected to the storage cylinder 3 in a circumferential rotation. The storage cylinder 3 is equipped with a motor for driving the spiral push plate to rotate. When the spiral push plate rotates, it drives the filling material to be transported to the positioning tube 311, which is conducive to reducing the probability of clogging of the filling material during the transportation process.

[0045] Reference Figure 1 and Figure 2 The frame 1 is provided with a plurality of supporting members 4 distributed along the direction from the storage cylinder 3 to the spiral cylinder 21. The supporting members 4 include supporting rods 41, mounting plates 42 and a plurality of guide wheels 43. The supporting rods 41 are vertically connected to the frame 1 in a sliding manner. A moving plate 14 is provided at the lower end of the frame 1. The moving plate 14 is arranged along the arrangement direction of the plurality of supporting rods 41. The end of the moving plate 14 close to the spiral cylinder 21 is vertically hinged to the frame 1. The frame 1 is provided with a pushing member 13. The pushing member 13 may be a cylinder or a hydraulic cylinder. In this embodiment, the pushing member 13 is selected as a hydraulic cylinder. The hydraulic cylinder is located at the lower end of the moving plate 14 and is hinged to the frame 1. The output end of the hydraulic cylinder is hinged to the end of the moving plate 14 away from the spiral cylinder 21. When the hydraulic cylinder is working, the moving plate 14 is driven to rotate.

[0046] Reference Figure 1 and Figure 2, a round rod 411 is vertically fixed to the lower end of each support plate 152, and the round rod 411 is parallel to the rotation axis of the movable plate 14. The movable plate 14 is provided with a plurality of slide grooves 141 corresponding to the round rods 411 along the length direction, and the round rods 411 are inserted into the slide grooves 141 and fit with the inner wall of the slide grooves 141. The movable plate 14 limits the support rods 41 through the cooperation between the slide grooves 141 and the round rods 411, so that when the movable plate 14 rotates, all the support rods 41 are driven to move vertically, and the displacement of the support rods 41 gradually increases in the direction away from the spiral barrel 21.

[0047] Reference Figure 1 and Figure 2 The mounting plate 42 is located at the upper end of the support rod 41, and the end of the mounting plate 42 close to the support rod 41 is fixedly connected to a rotating shaft 421, which passes through the support rod 41 and is rotatably connected to the support rod 41. When the support rod 41 moves, the mounting plate 42 is driven to move by the rotating shaft 421. The end of the rotating shaft 421 away from the mounting plate 42 is fixedly connected to a baffle plate, the diameter of the baffle plate is larger than the diameter of the rotating shaft 421, and the rotating shaft 421 is slidably connected to the support rod 41 along the axial direction. The baffle plate restricts the rotating shaft 421, thereby reducing the probability of the rotating shaft 421 detaching from the support rod 41.

[0048] Reference Figure 1 and Figure 2 , an elastic member 422 is arranged outside the rotating shaft 421, and the elastic member 422 is also a spring, one end of the spring is fixedly connected to the mounting plate 42, and the other end is fixedly connected to the support rod 41. When the elastic member 422 is in a natural state, the mounting plate 42 is in a horizontal state, and there is a movable space between the baffle plate and the support rod 41. All guide wheels 43 are located on the side of the mounting plate 42 away from the rotating shaft 421. All guide wheels 43 on the same support member 4 are divided into two groups vertically. When the mounting plate 42 moves, all guide wheels 43 are driven to move. All guide wheels 43 are provided with arc grooves 431 along the circumferential direction. A vibration motor 44 is installed on any mounting plate 42, and when the vibration motor 44 is working, it drives the corresponding mounting plate 42 to vibrate.

[0049] Reference Figure 1 and Figure 2The frame 1 is also provided with a guide member 12, which is located between the support rod 41 and the spiral drum 21. The guide member 12 includes a fixed plate 121, a driving wheel 122, a driving motor 123 and a plurality of supporting wheels 124. The fixed plate 121 is vertically arranged at the upper end of the frame 1, and all the supporting wheels 124 are rotatably connected to the upper end of the fixed plate 121, and the height of all the supporting wheels 124 relative to the frame 1 is higher than the height of the supporting drum 22 relative to the frame 1. The height of all the supporting wheels 124 gradually decreases from top to bottom along the direction of the support rod 41 pointing to the spiral drum 21. The driving wheel 122 is rotatably located on the side of all the supporting wheels 124 away from the frame 1. The driving motor 123 is fixedly connected to the fixed plate 121 to drive the driving wheel 122 to rotate. An elastic layer 125 is sleeved on the outer side of the driving wheel 122, and the elastic layer 125 is made of an elastic material, such as rubber.

[0050] Reference Figure 1 and Figure 5 In this embodiment, the raw material used for processing the spiral tube is a hollow metal tube with a circular cross-section, and both ends of the spiral tube raw material 10 are provided with openings. The frame 1 is provided with a plugging member for sealing the opening. The plugging member includes a fixed plug 1 51 and a fixed plug 2 52. The outer diameters of the fixed plug 1 51 and the fixed plug 2 52 are both smaller than the inner diameter of the spiral tube raw material 10. The fixed plug 1 51 and the fixed plug 2 52 are both circumferentially coated with an anti-skid layer 53, and the anti-skid layer 53 is made of a deformable material, such as rubber or latex. The outer diameter of the anti-skid layer 53 is larger than the inner diameter of the spiral tube raw material 10. When the fixed plug 1 51 or the fixed plug 2 52 is placed in the spiral tube raw material 10, the anti-skid layer 53 is in a deformed state and fits with the inner wall of the spiral tube raw material 10, thereby increasing the friction between the fixed plug 1 51 and the fixed plug 2 52 and the spiral tube raw material 10, thereby improving the connection stability.

[0051] Reference Figure 2 and Figure 5 The fixing plug 1 51 and the fixing plug 2 52 are respectively located at the two ends of the spiral tube raw material 10, and the ends of the fixing plug 1 51 and the fixing plug 2 52 that are away from each other are coaxially fixed with a threaded column 54, and the outer side of the threaded column 54 is threadedly connected with a pushing block 541. When the pushing block 541 is rotated with the threaded column 54 as the center, the pushing block 541 moves along the axis of the threaded column 54 under the guidance of the threaded column 54.

[0052] Reference Figure 2 and Figure 5A guide ring 542 is fixed on the outside of the pushing block 541, and the anti-skid layer 53 extends along the threaded column 54 toward the guide ring 542. The outer diameter of the guide ring 542 increases along the direction in which the threaded column 54 moves away from the corresponding fixed plug 1 51 or the fixed plug 2 52. When the pushing block 541 is rotated, the pushing block 541 drives the guide ring 542 to approach the anti-skid layer 53, thereby pushing the anti-skid layer 53 to contact the inner wall of the spiral tube raw material 10, thereby further improving the connection stability between the anti-skid layer 53 and the inner wall of the spiral tube raw material 10.

[0053] Reference Figure 2 and Figure 5 The fixed plug 52 is provided with a feeding channel, one end of the feeding channel 521 is located on an end surface of the fixed plug 52 away from the corresponding pushing block 541, and the other end is located at the outer edge of the fixed plug 52. The anti-slip layer 53 of the fixed plug 52 is provided with an avoidance port 531 connected to the feeding channel 521.

[0054] Reference Figure 1 and Figure 2 When processing the spiral tube raw material 10, first, one end of the spiral tube raw material 10 is blocked by the fixed plug 51. Initially, the movable plate 14 is set horizontally, and the upper ends of all the support rods 41 are flush. One end of the spiral tube raw material 10 is passed through the gap between the two sets of guide wheels 43 on all the mounting plates 42 in turn, and it is ensured that the end of the spiral tube raw material 10 installed with the fixed plug 51 faces the spiral cylinder 21. The curvature of the arc groove 431 is set according to the outer diameter of the spiral tube raw material 10. The spiral tube raw material 10 is located in the arc groove 431 and contacts the inner wall of the arc groove 431. All the guide wheels 43 cooperate to support the spiral tube raw material 10.

[0055] Reference Figure 2 and Figure 4 , the pusher 13 is operated to drive the moving plate 14 to move up away from the end of the spiral cylinder 21, so that the support rod 41 drives the end of the spiral tube raw material 10 away from the spiral cylinder 21 to be lifted through the guide wheel 43, and the spiral tube raw material 10 moves toward the fixed plate 121 under the action of gravity. Initially, the moving plate 14 and the tilting direction of all the support wheels 124 are in a non-parallel state, and the spiral tube raw material 10 is in conflict with the anti-skid layer 53 or the support wheel 124 outside the driving wheel 122 under the action of gravity, thereby preventing the displacement of the spiral tube raw material 10 along the axial direction. The length of the spiral tube raw material 10 is fixed. When one end of the spiral tube raw material 10 is lifted and stationary, the end away from the spiral cylinder 21 is located below the tapered portion 323, and the moving tube 312 is driven downward by the moving member 313, so that the moving tube 312 drives the tapered portion 323 to move toward the open end of the spiral tube raw material 10 through the mounting tube 321.

[0056] Reference Figure 1 and Figure 4, the sealing plate 322 is moved, so that the filling material falls into the inner hole of the spiral tube raw material 10 under the action of gravity, thereby filling the inner hole of the spiral tube raw material 10. During filling, the corresponding mounting plate 42 is driven by the vibration motor 44 to reciprocate along the axis direction of the rotating shaft 421, so that the mounting plate 42 drives the spiral tube raw material 10 to vibrate through the guide wheel 43, thereby improving the filling effect of the filling material.

[0057] Reference Figure 4 and Figure 5 When the filling material in the spiral tube raw material 10 is close to the opening, the sealing plate 322 is operated to reset and the moving member 313 (reference Figure 3 ) drives the moving tube 312 (reference Figure 3 ) is moved upward, and the fixing plug 2 52 is inserted into the spiral tube raw material 10, and the avoidance port 531 is located directly below the tapered portion 323, and the moving tube 312 is manipulated again (refer to Figure 3 ) moves downward, so that the conical portion 323 passes through the avoidance opening 531 and enters the feeding channel 521. The lower end of the sealing plate 322 is hinged with a push rod, which pushes the sealing plate 322 away from the conical portion 323 after contacting the anti-slip layer 53, so that the filling material is discharged from between the sealing plate 322 and the conical portion 323 again, and enters the interior of the spiral tube raw material 10 along the feeding channel 521.

[0058] Reference Figure 4 and Figure 5 When the filling material is about to be filled, it spreads along the second fixed plug 52, and the second fixed plug 52 is helpful to reduce the empty space in the spiral tube raw material 10. When the filling material is submerged in the port of the feed channel 521, the filling material accumulates in the feed channel 521. At this time, there is still some space in the upper end of the feed channel 521 in the spiral tube raw material 10. At this time, the moving tube 312 is manipulated to move upward. The second fixed plug 52 is pushed into the spiral tube raw material 10, thereby pushing the filling material to move, so that the filling material fills the remaining space at the upper end of the feed channel 521.

[0059] Reference Figure 1 and Figure 2 , the pusher 13 is operated to drive the movable plate 14 to rotate. When the movable plate 14 is parallel to the tilting direction of the support wheel 124, the spiral tube raw material 10 is between the driving wheel 122 and the support wheel 124. At this time, the driving motor 123 drives the driving wheel 122 to rotate, so that the driving wheel 122 drives the spiral tube raw material 10 to move along the arrangement direction of the support wheel 124 through the anti-slip layer 53, and then the spiral tube raw material 10 moves to the connection point between the spiral groove 211 and the guide groove 221.

[0060] Reference Figure 1 and Figure 2When the spiral tube raw material 10 enters the spiral groove 211, the driving member 11 drives the spiral tube 21 and the supporting tube 22 to rotate, and then drives the spiral tube raw material 10 to bend through the cooperation of the spiral groove 211 and the guide groove 221, so that the spiral tube raw material 10 extends along the spiral groove 211, thereby completing the spiral processing.

[0061] Reference Figure 1 and Figure 2 During the bending process of the spiral tube raw material 10, the support wheel 124 pushes the spiral tube raw material 10 to fit with the spiral tube, thereby reducing the probability of the spiral tube raw material 10 protruding outward and deforming on the side close to the spiral cylinder 21. During the bending process of the spiral tube raw material 10, the internal filling material is driven to move, and the filling material supports the inner wall of the spiral tube raw material 10, thereby reducing the probability of the tube wall of the spiral tube raw material 10 being concave inward, which is conducive to reducing the probability of wrinkles and deformation of the spiral tube raw material 10 during the bending process, thereby helping to improve the product quality of the spiral tube.

[0062] Reference Figure 1 After the spiral tube is processed, the moving block 151 is moved away from the spiral barrel 21, so that the moving block 151 drives the support plate 152 away from the support rod 41. After the support plate 152 is turned over, it avoids the spiral tube, thereby facilitating the spiral tube to be moved out from the outside of the spiral barrel 21.

[0063] The working principle of a spiral tube bending device in the embodiment of the present application is as follows: before processing the spiral tube, one end of the spiral tube raw material 10 is blocked by a fixed plug 1 51, and the spiral tube raw material 10 is passed through the gaps between the two sets of guide wheels 43 on all the mounting plates 42 in sequence, so that the mounting plates 42 support the spiral tube raw material 10 through the guide wheels 43. The moving plate 14 is driven to rotate by the pusher 13, and then the height of the support rod 41 is adjusted, so that the spiral tube raw material 10 rises away from one end of the spiral barrel 21. The filling material in the storage barrel 3 is fed into the spiral tube raw material 10 through the discharge head 32 and the discharge pipe 31, and the other end of the spiral tube raw material 10 is blocked by the fixed plug 2 52. After adjusting the angle of the spiral tube raw material 10 again by the pusher 13, the spiral tube raw material 10 is sent into the connection between the spiral groove 211 and the guide groove 221 by the cooperation of the driving wheel 122 and the supporting wheel 124. Under the support of the supporting cylinder 22, when the spiral tube 21 rotates, the spiral tube raw material 10 is driven to bend by the cooperation of the spiral groove 211 and the guiding groove 221, so that the spiral tube raw material 10 is deformed along the spiral groove 211. During the bending process of the spiral tube raw material 10, the supporting cylinder 22 and the filling material cooperate to limit the inner and outer sides of the tube wall of the spiral tube raw material 10, thereby reducing the probability of the spiral tube raw material 10 being concave or convex during the bending process, thereby helping to reduce the probability of wrinkles in the spiral tube and improving the product quality of the spiral tube.

[0064] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spiral tube bending device, comprising a frame (1) and a spiral drum (21), wherein the spiral drum (21) is provided with a spiral groove (211) along the circumferential direction and is rotatably connected to the frame (1), the frame (1) is provided with a driving member (11) for driving the spiral drum (21) to rotate, and the frame (1) is also provided with a guide member (12) for conveying a spiral tube raw material (10) to the spiral drum (21), characterized in that: Also includes: A support cylinder (22) is located below the spiral cylinder (21) and is arranged parallel to the spiral cylinder (21). The support cylinder (22) is provided with a guide groove (221) corresponding to the spiral groove (211) along the circumferential direction. The storage cylinder (3) is located above the frame (1) and at one end of the frame (1) away from the spiral cylinder (21). Rigid filler is placed in the storage cylinder (3). The lower end of the storage cylinder (3) is connected to a discharge pipe (31) for discharging the filler. The lower end of the discharge pipe (31) is provided with a discharge head (32) for communicating with the inner hole of the spiral tube raw material (10). A plurality of support members (4) are all located below the storage cylinder (3) and are arranged in a direction from the storage cylinder (3) to the spiral cylinder (21); the support members (4) are used to support the spiral tube raw material (10); and the guide member (12) is located between the support member (4) and the spiral cylinder (21) and is used to push the spiral tube raw material (10) from the support member (4) to the spiral cylinder (21); The support member (4) comprises a support rod (41), a mounting plate (42) and a plurality of guide wheels (43); the support rod (41) is slidably connected to the frame (1) in the vertical direction; a movable plate (14) is arranged at the lower end of the frame (1); the movable plate (14) is arranged along the arrangement direction of the plurality of support rods (41); one end of the movable plate (14) close to the spiral cylinder (21) is vertically hinged to the frame (1); the frame (1) is provided with a push member (13); the push member (13) is a cylinder or a hydraulic cylinder; the push member (13) is located at the lower end of the movable plate (14) and is hinged to the frame (1); the output end of the push member (13) is hinged to one end of the movable plate (14) away from the spiral cylinder (21); the push member (13) drives the movable plate (14) to rotate when working; A round rod (411) is vertically fixed to the lower end of the support plate (152), the round rod (411) is parallel to the rotation axis of the movable plate (14), and a plurality of slide grooves (141) corresponding to the round rods (411) are opened along the length direction of the movable plate (14), and the round rods (411) are inserted into the slide grooves (141) and fit with the inner wall of the slide grooves (141); the movable plate (14) limits the support rods (41) through the cooperation of the slide grooves (141) and the round rods (411), so that when the movable plate (14) rotates, all the support rods (41) are driven to move vertically, and the displacement of the support rods (41) gradually increases in the direction away from the spiral cylinder (21); The plugging pieces are located at both ends of the spiral tube raw material (10) and are used to plug the ports of the spiral tube raw material (10).

2. A spiral tube bending device according to claim 1, characterized in that: The support member (4) comprises a support rod (41), a mounting plate (42) and a plurality of guide wheels (43); the support rod (41) is slidably connected to the frame (1) in the vertical direction; the frame (1) is provided with a pusher (13) for driving the support rod (41) to move in the vertical direction; the mounting plate (42) is rotatably connected to the upper end of the support rod (41) in the vertical direction; the plurality of guide wheels (43) are divided into two groups; the two groups of guide wheels (43) are arranged in the vertical direction and are both rotatably connected to the mounting plate (42).

3. A spiral tube bending device according to claim 1, characterized in that: The guide member (12) comprises a fixed plate (121), a driving wheel (122), a driving motor (123) and a plurality of supporting wheels (124); the fixed plate (121) is arranged at the upper end of the frame (1); the plurality of supporting wheels (124) are all rotatably connected to the upper end of the fixed plate (121) and are arranged obliquely from top to bottom along the direction of the support member (4) pointing toward the spiral cylinder (21); the driving wheel (122) is located on a side of the supporting wheel (124) away from the frame (1) and is rotatably connected to the fixed plate (121); the driving motor (123) is fixedly connected to the fixed plate (121) and is used to drive the driving wheel (122) to rotate; and an elastic layer (125) is provided on the outer side of the driving wheel (122).

4. A spiral tube bending device according to claim 1, characterized in that: The blocking member comprises a fixed plug 1 (51) and a fixed plug 2 (52); the outer diameters of the fixed plug 1 (51) and the fixed plug 2 (52) are both smaller than the inner diameter of the spiral tube raw material (10); the fixed plug 2 (52) is provided with a feed channel (521); one end of the feed channel (521) is located at any end face of the fixed plug 2 (52) along the axial direction, and the other end is located at the outer edge of the fixed plug 2 (52); and the discharge head (32) is adapted to the feed channel (521).

5. A spiral tube bending device according to claim 4, characterized in that: The outer edges of the fixed plug 1 (51) and the fixed plug 2 (52) are both coated with an anti-skid layer (53) along the circumferential direction, the anti-skid layer (53) is made of elastic material, the anti-skid layer (53) of the fixed plug 1 (51) is provided with an avoidance port (531) connected to the feed channel (521), the fixed plug 1 (51) and the fixed plug 2 (52) are both fixedly provided with a threaded column (54) on the side away from each other, the outer side of the threaded column (54) is threadedly connected with a push block (541), the anti-skid layer (53) extends along the axis of the threaded column (54) toward the push block (541), the push block (541) is provided with a guide ring (542) along the circumferential direction, and the outer diameter of the guide ring (542) gradually increases along the direction in which the threaded column (54) is away from the anti-skid layer (53).

6. A spiral tube bending device according to claim 4, characterized in that: The discharge pipe (31) comprises a positioning pipe (311) and a moving pipe (312), wherein the positioning pipe (311) is connected to the lower end of the storage tube (3), the moving pipe (312) is sleeved on the outer side of the positioning pipe (311) and is slidably connected to the positioning pipe (311) in the vertical direction, and the storage tube (3) is provided with a moving part (313) for driving the moving pipe (312) to move, and the discharge head (32) comprises a mounting pipe (321) and a sealing plate (322), wherein the mounting pipe (321) is fixedly connected to the lower end of the moving pipe (312), and the sealing plate (322) is fixedly connected to the lower end of the moving pipe (312). The plate (322) is located on a side of the mounting tube (321) away from the spiral cylinder (21), and is arranged to be inclined from the outer edge of the mounting tube (321) to the axis from top to bottom. A conical portion (323) corresponding to the sealing plate (322) is fixed to the lower end of the mounting tube (321). The mounting tube (321) is provided with an elastic member 1 (324), and the elastic member 1 (324) is used to push the sealing plate (322) to approach the conical portion (323). When the sealing plate (322) contacts the conical portion (323), the mounting tube (321) is blocked.

7. A spiral tube bending device according to claim 2, characterized in that: One end of the mounting plate (42) away from the guide wheel (43) is fixedly connected to a rotating shaft (421), the rotating shaft (421) passes through the supporting plate (152) and is rotatably connected to the supporting plate (152), and a second elastic member (422) is provided on the outer side of the rotating shaft (421), and when the second elastic member (422) is in a natural state, the mounting plate (42) is in a horizontal state.

8. A spiral tube bending device according to claim 7, characterized in that: The rotating shaft (421) is slidably connected to the support plate (152) along the axial direction; a movable space is provided between the mounting plate (42) and the support plate (152) to accommodate the deformation of the second elastic member (422) along the axial direction of the rotating shaft (421); a vibration motor (44) is fixedly provided on any mounting plate (42); when the vibration motor (44) is in operation, the mounting plate (42) is driven to vibrate; an arc groove (431) is provided on the guide wheel (43) along the circumferential direction; when the spiral tube raw material (10) is located between the two sets of guide wheels (43), it is in contact with the inner wall of the arc groove (431).

9. The spiral tube bending device according to claim 1, characterized in that: The frame (1) is fixed with a support block (15), the support block (15) is located at one end of the support cylinder (22) away from the driving member (11), a support column (222) is coaxially fixed to the support cylinder (22), the support column (222) passes through the support block (15) and is rotatably connected to the support block (15), the upper end of the support block (15) is slidably connected to a moving block (151) along the axial direction of the support cylinder (22), the moving block (151) is vertically hinged with a support plate (152), a rotating hole (153) is opened along the support plate (152), and a rotating rod (212) corresponding to the rotating hole (153) is coaxially fixed to the spiral cylinder (21).

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