A pipe packing device with a double-position welding function

Abstract

The present invention relates to a pipe packing device with a double-position welding function. It includes a frame, a middle base is installed in the middle of the frame, two left and right pressing components are installed in the front of the middle base, a welding component is arranged between the two pressing components, and it also includes a pressing drive component and a lifting drive component; a left track plate and a right track plate are respectively installed on both sides of the middle base, a translation backing plate that can be translated back and forth is installed between the two track plates, a guide sleeve is installed in the middle of the translation backing plate, a moving block that can be translated back and forth is arranged in the guide sleeve, a guide plate with a horizontally penetrating flat gap is installed at the front end of the moving block, and it also includes a first translation drive component and a second translation drive component; a left guide belt component and a right guide belt component are respectively installed on both sides of the front of the translation backing plate, and an upper guide belt component is arranged above the left guide belt component. The structure of the present invention is reasonably designed, improving the reliability of packing.

Description

Technical Field

[0001] The present invention belongs to the technical field of packing machines, and particularly relates to a pipe packing device with a double-position welding function. Background Art

[0002] After various metal pipes are produced and formed, in order to facilitate subsequent transportation, they usually need to be packed, bundling multiple pipes together to form a pipe bundle, and the whole bundle is transferred during subsequent transportation. The current packing method mainly uses metal belt packing, and basically it is operated manually. The foregoing operation method not only has low packing efficiency, but also it is usually very difficult to tension the binding belt, resulting in a relatively loose metal pipe bundle after packing, bringing many inconveniences to the subsequent transfer and transportation process.

[0003] In order to solve the foregoing technical problems, the specification of Chinese Utility Model Patent CN217754256U discloses a packing core structure of a packing device, and this packing core structure is applied to the applicant's initial packing machine model. In the patent solution of this invention, the packing belt made of polyester fiber material wrapped around the metal pipe is subjected to single-point fusion connection by a welding component based on the principle of high-frequency vibration friction after being stacked.

[0004] The foregoing single-point fusion connection solution has the following problems in practice: The packing belt with single-position fusion connection is prone to break at the fusion connection position, thereby causing the metal pipe to become loose. This is determined by the working characteristics of the welding component of the packing machine. Limited by factors such as processing accuracy and temperature, the reliability of single-position fusion connection is insufficient. Therefore, it is necessary to weld the packing belt at more positions. The existing packing devices do not have a double-position welding function, and it is necessary to optimize the structure design. Summary of the Invention

[0005] The present invention provides a pipe packing device with a double-position welding function that has a reasonable structure design and improves packing reliability in order to solve the technical problems existing in the known technology, and improves the reliability of metal pipe packing by generating two welding positions on the packing belt at the same time.

[0006] The technical solution adopted by the present invention to solve the technical problems existing in the known art is as follows: A pipe packing device with a double-position welding function includes a frame. A middle base is installed in the middle of the frame. Two left and right pressing components are installed in the front of the middle base. A welding component with a double welding head that can move up and down is provided between the two pressing components. It also includes a pressing drive component that individually drives the two pressing components to produce pressing and releasing actions, and a lifting drive component that drives the welding component to move up and down. On both sides of the middle base, a left track plate and a right track plate are respectively installed. A translation cushion plate that can move back and forth is installed between the two track plates. A guide sleeve is installed in the middle of the translation cushion plate. A moving block that can move back and forth is provided in the guide sleeve. A guide plate with a horizontally penetrating flat gap is installed at the front end of the moving block. It also includes a first translation drive component that drives the translation cushion plate to move back and forth and a second translation drive component that drives the moving block to move back and forth. On both sides of the front of the translation cushion plate, a left tape guide component and a right tape guide component are respectively installed. A left guiding component is provided outside the left tape guide component, a right guiding component is provided outside the right tape guide component, and an upper tape guide component is provided above the left tape guide component.

[0007] Preferably: Vertical guide holes are provided on the front left and front right of the middle base. The left pressing component includes a left pressing rod and a left pressing block installed at its bottom end. The right pressing component includes a right pressing rod and a right pressing block installed at its bottom end. A horizontally penetrating flat belt hole is also provided on the left pressing block.

[0008] Preferably: The pressing drive component includes a left pressing arm and a right pressing arm whose middle parts are hinged to the top of the middle base by a pressing arm rotating shaft. The front end of the left pressing arm is hinged to the upper end of the left pressing rod. The front end of the right pressing arm is hinged to the upper end of the right pressing rod. It also includes a left pressing cylinder and a right pressing cylinder. The cylinder ends of both are hinged to the frame. The lower end of the piston rod of the left pressing cylinder is hinged to the rear end of the left pressing arm. The lower end of the piston rod of the right pressing cylinder is hinged to the rear end of the right pressing arm.

[0009] Preferably: The welding component includes a welding housing. The double welding head includes a first welding head and a second welding head provided in the welding housing. The lower ends of both pass through the window at the bottom of the welding housing. Oval drive holes are provided at the tops of both the first welding head and the second welding head, and shaft holes are provided in the middle parts. A welding motor is installed on the top side of the welding housing, and a welding drive shaft is installed on the output shaft of the welding motor. Two left and right eccentric wheels are installed on the welding drive shaft, and the two eccentric wheels are respectively located in the drive holes of the two welding heads. A hinged shaft is installed in the middle of the welding housing and the hinged shaft is located in the shaft holes of the two welding heads.

[0010] Preferably, the lifting drive assembly includes a lifting cylinder mounted on the frame, a connecting slider is mounted at the lower end of its piston rod, a track block with a chute is mounted on the top of the welding shell, and the connecting slider is connected to the track block in a matching manner.

[0011] Preferably, the first translation drive assembly includes a swing arm base mounted on the back of the frame and a rear swing arm hinged to the swing arm base at the middle. A connecting seat is mounted at the rear of the translation backing plate, the lower end of the rear swing arm is hinged to the connecting seat, and it further includes a push-pull cylinder and the rear end of its piston rod is hinged to the upper end of the rear swing arm.

[0012] Preferably, the second translation drive assembly includes a flat push cylinder, the rear part of the cylinder body of the flat push cylinder is fixedly connected to the swing arm base, and the front end of the piston rod of the flat push cylinder is connected to the rear part of the moving block.

[0013] Preferably, the tape inlet of the left tape guide assembly is horizontally aligned with the tape outlet of the left guiding assembly, and the tape outlet of the left tape guide assembly is horizontally aligned with the lower part of the left pressing block; the tape inlet of the right tape guide assembly is horizontally aligned with the lower part of the right pressing block, and the tape outlet of the right tape guide assembly is aligned with the tape inlet of the right guiding assembly; the upper tape guide assembly is inclined, and its tape outlet is aligned with the outer end of the flat tape hole of the left pressing block.

[0014] Preferably, the left guiding assembly is in an arc shape and includes a left base with an arc-shaped inner surface and left baffles mounted on the front and rear parts of the left base; the right guiding assembly is in an arc shape and includes a right base with an arc-shaped inner surface and right baffles mounted on the front and rear parts of the right base.

[0015] Preferably, a tape feeding motor is further mounted on the frame, a tape feeding wheel is mounted on the output shaft of the tape feeding motor, and the packing tape conveyed by the tape feeding wheel enters the tape inlet of the upper tape guide assembly; a cross plate is mounted on the middle part of the frame by a back plate, a tensioning cylinder is mounted on the cross plate, a chain tensioner for pressing the packing tape is provided on the outer edge of the tape feeding wheel, and the tensioning cylinder controls the chain tensioner to be tightened or relaxed.

[0016] The advantages and positive effects of the present invention are:

[0017] The present invention provides a pipe packing device with a double-position welding function and a reasonable structural design. Compared with the existing pipe packing devices, the pipe packing device in the present invention realizes the pressing and fixing of the formed loop packing tape by setting left and right pressing assemblies and a pressing drive assembly, and realizes the technical effect of double-position welding connection of the formed loop packing tape by setting a welding assembly with double welding contacts. The packing tape formed on the metal pipe bundle by using this packing device is not easy to break and loosen due to having two welding connection positions at the closed end, thus improving the stability of the packing tape after packing.

[0018] By arranging a left guide belt assembly, a right guide belt assembly and an upper guide belt assembly at the front part, the guiding of the packing belt into a loop is realized. By arranging a translation backing plate and its first translation driving assembly, the front-back translation control of the translation backing plate serving as a welding backing plate is realized. By arranging a moving block, a guide sleeve and a guide plate with a flat gap at the front part, the guiding effect on the packing belt between the two pressing assemblies is realized, the accuracy of the moving position of the packing belt is improved, deviation is avoided, and after the guiding is completed and before the welding operation, it retreats to the initial position to avoid adverse effects on the welding operation. Description of the Drawings

[0019] Figure 1 is a schematic external structure diagram of the present invention, front view;

[0020] Figure 2 is a schematic external structure diagram of the present invention, rear view;

[0021] Figure 3 is a schematic internal structure diagram of the present invention, bottom view;

[0022] Figure 4 is a schematic internal structure diagram of the present invention, front view;

[0023] Figure 5 is a schematic internal structure diagram of the present invention, rear view;

[0024] Figure 6 is a schematic internal structure diagram of the present invention, front view;

[0025] Figure 7 is a schematic internal structure diagram of the present invention, rear view;

[0026] Figure 8 is a schematic internal structure diagram of the present invention, front view;

[0027] Figure 9 is Figure 1 a schematic external structure diagram of the welding cylinder and the welding assembly in

[0028] Figure 10 is Figure 9 a schematic structure diagram of the welding contact head in

[0029] In the figure:

[0030] 1. Frame; 2. Belt-feeding wheel; 3. Left guiding component; 4. Left belt-guiding component; 5. Upper belt-guiding component; 6. Middle base; 7. Front cover plate; 7-1. Heat dissipation holes; 8. Right belt-guiding component; 9. Right guiding component; 10. Lifting cylinder; 11. Welding component; 11-1. Rail block; 11-2. Welding housing; 11-3. First welding contact head; 11-4. Second welding contact head; 12. Rear swing arm; 13. Swing arm base; 14. Push-pull cylinder; 15. Left lower pressing cylinder; 16. Right lower pressing cylinder; 17. Connecting seat; 18. Translation backing plate; 18-1. Friction plate; 19. Left track plate; 20. Right track plate; 21. Welding motor support; 22. Tensioning cylinder; 23. Back plate; 24. Cross plate; 25. Left pressing arm; 26. Right pressing arm; 27. Left pressing rod; 28. Left pressing block; 29. Right pressing rod; 30. Right pressing block; 31. Pressing arm rotating shaft; 32. Moving block; 33. Guide sleeve; 34. Guide plate. Detailed implementation manners

[0031] To further understand the content, features and effects of the present invention, the following embodiments are given for detailed description.

[0032] Please refer to Figure 1 and Figure 2 , the pipe packing device with double-position welding function of the present invention includes a frame 1. As shown in the figure, the frame 1 is made by welding and splicing thick metal plates. Specifically, it includes a frame top plate, a frame bottom plate, a frame left side plate, a frame right side plate and support partition plates located between the frame top plate and the frame bottom plate. Adjacent two plates are welded and fixed to ensure the overall structural strength of the frame 1. The support partition plates divide the internal space of the frame 1 into a left space and a right space.

[0033] A middle base 6 is installed in the middle of the frame 1, and the middle base 6 is used as the installation base for accessory components. As Figure 3 , Figure 4 and Figure 5 shown, the middle base 6 is fixedly installed on a back plate 23. The back plate 23 is located in the right space on the right side of the support partition plate. Further, a lower cross beam is welded and installed on the frame bottom plate, and a cross plate 24 is welded and installed between the middle of the support partition plate and the frame right side plate. The upper edge of the back plate 23 is fixedly connected to the front edge of the cross plate 24 by countersunk head screws, the lower edge of the back plate 23 is fixedly connected to the lower cross beam by countersunk head screws, and the back of the middle base 6 is fixedly connected to the back plate 23 by countersunk head screws.

[0034] On the front part of the middle base 6, there are two left and right pressing components installed. Between the two pressing components, there is a welding component 11 with double welding contacts that can move up and down. There is also a pressing drive component that separately drives the two pressing components to generate pressing and releasing actions, and a lifting drive component that drives the welding component 11 to move up and down. Its operation mode is as follows: After the packing belt forms a loop, the two left and right pressing components act respectively to press and fix the stacked packing belts. Then, the welding component 11 descends until the lower end of its double welding contacts presses on the stacked packing belts. The welding component 11 generates a high-frequency friction action, generating high temperature at the position where the welding contacts contact the packing belt, melting the packing belt material, and completing the welded connection after cooling.

[0035] Please refer to Figure 6 , Figure 7 and Figure 8 , it can be seen that:

[0036] The cross-section of the middle base 6 is in the shape of a "concave" character, that is, there is a vertically penetrating groove in the middle of the front surface, and correspondingly, a left base body and a right base body are formed on both sides of the groove.

[0037] In this embodiment, vertical guide holes are provided on the front left and front right of the middle base 6 (that is, vertical guide holes penetrating through are provided on the left base body and the right base body). The left pressing component includes a left pressing rod 27 and a left pressing block 28 installed at its bottom end. The right pressing component includes a right pressing rod 29 and a right pressing block 30 installed at its bottom end. A horizontally penetrating flat belt hole is also provided on the left pressing block 28. By controlling the lifting movement of both the left pressing rod 27 and the right pressing rod 29, the lifting movement of both the left pressing block 28 and the right pressing block 30 is made to press and fix the packing belt below.

[0038] In this embodiment, the pressing drive component includes a left pressing arm 25 and a right pressing arm 26 whose middle parts are hinged to the top of the middle base 6 by a pressing arm rotating shaft 31. The front end of the left pressing arm 25 is hinged to the upper end of the left pressing rod 27, and the front end of the right pressing arm 26 is hinged to the upper end of the right pressing rod 29. It also includes a left downward pressing air cylinder 15 and a right downward pressing air cylinder 16. The cylinder body ends of both are hinged to the frame 1. The lower end of the piston rod of the left downward pressing air cylinder 15 is hinged to the rear end of the left pressing arm 25, and the lower end of the piston rod of the right downward pressing air cylinder 16 is hinged to the rear end of the right pressing arm 26.

[0039] Specifically, a left support and a right support are installed below the frame top plate of the frame 1. The upper end of the cylinder body of the left pressing cylinder 15 is hinged to the left support, and the upper end of the cylinder body of the right pressing cylinder 16 is hinged to the right support. When a pressing action is required, the piston rods of both the left pressing cylinder 15 and the right pressing cylinder 16 retract (move upward). Due to the lever principle, both the left pressing rod 27 and the right pressing rod 29 move downward. Similarly, when it is necessary to release the pressed packing belt, the piston rods of both the left pressing cylinder 15 and the right pressing cylinder 16 extend (move downward). Due to the lever principle, both the left pressing rod 27 and the right pressing rod 29 move upward. Since both the left pressing rod 27 and the right pressing rod 29 move within the guiding holes of the base body on their respective sides, the stability during vertical lifting and lowering movement is ensured.

[0040] Please refer to Figure 9 and Figure 10 , it can be seen that:

[0041] The welding assembly 11 includes a welding housing 11-2. The double welding contacts include a first welding contact 11-3 and a second welding contact 11-4 disposed within the welding housing 11-2, and the lower ends of both pass through the window at the bottom of the welding housing 11-2. Oval driving holes are provided at the tops of both the first welding contact 11-3 and the second welding contact 11-4, and shaft holes are provided in the middle. A welding motor support 21 is installed on the top side of the welding housing 11-2, and a welding motor (not shown in the figure) is installed on the welding motor support 21. A welding drive shaft is installed on the output shaft of the welding motor, and two eccentric wheels are installed on the welding drive shaft and are respectively located within the driving holes of the two welding contacts. A hinge shaft is installed in the middle of the welding housing 11-2 and is located within the shaft holes of the two welding contacts.

[0042] Since the first welding contact 11-3 and the second welding contact 11-4 are in a hinged connection relationship with the welding housing 11-2 in the middle, the first welding contact 11-3 and the second welding contact 11-4 can swing back and forth with the hinge shaft in the middle as the center. Since the output shaft of the welding motor is connected to the upper ends of the first welding contact 11-3 and the second welding contact 11-4 through the welding drive shaft with eccentric wheels, when the welding motor drives the welding drive shaft to rotate at a high speed, due to the cooperation between the eccentric wheels and the oval driving holes, a high-frequency forward and backward pushing and pulling action on the upper ends of the welding contacts is achieved. Correspondingly, the lower ends of the welding contacts make high-frequency forward and backward swinging actions. When the lower ends of the welding contacts contact the packing belt and perform the aforementioned high-frequency swinging friction action, high temperature is generated at the contact position, realizing the welding of the stacked packing belts.

[0043] In this embodiment, the lifting drive assembly includes a lifting cylinder 10 mounted on the frame 1 (the cylinder body of the lifting cylinder 10 is fixedly mounted at the front of the top plate of the frame). A connecting slider is mounted at the lower end of its piston rod. A track block 11-1 with a chute is mounted on the top of the welding shell 11-2, and the connecting slider is connected to the track block 11-1 in a mating manner. In this way, when the lifting cylinder 10 drives the entire welding assembly 11 to move up and down, since the connecting slider and the track block 11-1 are in a sliding connection relationship, the problem of jamming of the welding assembly 11 during the up and down movement can be effectively avoided.

[0044] Considering that a large amount of heat is generated at the positions where the two welding contacts contact the packing tape during the welding process, in order to improve the cooling efficiency of the welding position after the welding contacts are separated from the packing tape, in this embodiment, a front cover plate 7 is fixedly mounted at the front of the middle base 6. There are two left and right heat dissipation holes 7-1 at the bottom of the front cover plate 7, and the two heat dissipation holes 7-1 are aligned with the lower ends of the two welding contacts to ensure the front and back flow of air and improve the cooling efficiency of the welding. The front cover plate 7 also serves to enclose the main part of the welding assembly 11 inside, improving the safety of the operation and avoiding the problem of jamming of the welding assembly 11 during lifting caused by foreign objects getting stuck inside.

[0045] A left track plate 19 and a right track plate 20 are respectively mounted on both sides of the middle base 6. A translation cushion plate 18 that can move back and forth is mounted between the two track plates, and a first translation drive assembly for driving the translation cushion plate 18 to move back and forth is also included.

[0046] As Figure 3 and Figure 7 shown in

[0047] As shown in the figure, in this embodiment, in order to improve the pressing and fixing effect on the packing belt, grooves are provided on both sides of the upper surface of the front part of the translation backing plate 8, and toothed plates are provided in the two grooves. When the translation backing plate 8 moves forward to the end position, the two toothed plates are respectively located directly below the left pressing block 28 and the right pressing block 30. Correspondingly, toothed parts are provided at the bottoms of the left pressing block 28 and the right pressing block 30, and the packing belt is located between the toothed parts and the toothed plates. In this way, the stability of fixing can be improved and the packing belt can be prevented from loosening through the interaction between the teeth and the packing belt. Further, two friction plates 18-1 with dense protrusions on the surface are installed on the middle of the upper surface of the front part of the translation backing plate 8. After the welding assembly 11 descends, the stacked packing belts are pressed and fixed on the two friction plates 18-1 by the two welding contacts. The friction plates 18-1 can prevent the lower packing belt from shifting during the high-frequency friction process, ensure the concentration of heat, and improve the efficiency of the welded connection.

[0048] In this embodiment, the first translation driving assembly includes a swing arm base 13 installed on the back of the frame 1 and a rear swing arm 12 hinged to the middle of the swing arm base 13. The swing arm base 13 is installed and fixed in the middle of the rear edge of the frame bottom plate. A connecting seat 17 is installed at the rear of the translation backing plate 18, and the lower end of the rear swing arm 12 is hinged to the connecting seat 17. It also includes a push-pull cylinder 14, and the rear end of the piston rod thereof is hinged to the upper end of the rear swing arm 12. As shown in the figure, a rear support is installed at the middle position of the rear of the back plate 23, and the rear end of the cylinder body of the push-pull cylinder 14 is hinged to the rear support. When the piston rod of the push-pull cylinder 14 extends, due to the lever action, the translation backing plate 18 is pushed forward. On the contrary, when the piston rod of the push-pull cylinder 14 retracts, due to the lever action, the translation backing plate 18 is pulled backward. Thus, the forward and backward translation control of the translation backing plate 18 is realized.

[0049] A guide sleeve 33 is installed in the middle of the translation backing plate 18. A moving block 32 that can move forward and backward is provided in the guide sleeve 33. A guide plate 34 with a horizontally penetrating flat gap is installed at the front end of the moving block 32. It also includes a second translation driving assembly for driving the moving block 32 to move forward and backward. In this embodiment, the second translation driving assembly includes a flat push cylinder (not shown in the figure). The rear part of the cylinder body of the flat push cylinder is fixedly connected to the swing arm base 13, and the front end of the piston rod of the flat push cylinder is connected to the rear part of the moving block 32. When the piston rod of the flat push cylinder extends, the moving block 32 and the guide plate 34 move forward, and the guide sleeve 33 is used to improve the smoothness of the movement.

[0050] When the guide plate 34 moves forward to the end position, it is located between the left pressing block 28 and the right pressing block 30. As shown in the figure, the left end of the flat gap of the guide plate 34 is flared, which is beneficial for the packing belt to pass through horizontally. After the auxiliary guiding of the packing belt is completed and before the welding operation is started, the piston rod of the flat push cylinder retracts, driving the moving block 32 to move backward.

[0051] On both sides of the front part of the translation backing plate 18, a left belt guide assembly 4 and a right belt guide assembly 8 are respectively installed. A left guiding assembly 3 is provided outside the left belt guide assembly 4, a right guiding assembly 9 is provided outside the right belt guide assembly 8, and an upper belt guide assembly 5 is provided above the left belt guide assembly 4. Among them, the upper belt guide assembly 5 is used to guide the packing belt conveyed by the packing belt supply device, so that the packing belt passes through the flat belt hole on the left pressing block 28, the packing belt passes horizontally between the right pressing block 30 and the translation backing plate 18, and then enters the right guiding assembly 9 under the guiding action of the right belt guide assembly 8. After the packing belt surrounds and passes through the bundled metal pipes, its end enters the left belt guide assembly 4 under the guiding action of the left guiding assembly 3. The left belt guide assembly 4 further guides the end of the packing belt to pass between the left pressing block 28 and the translation backing plate 18. When the end of the packing belt moves to the position in contact with the right pressing block 30, it stops moving. At this time, the packing belt forms a loop and a stacking area is formed under the welding assembly 11.

[0052] In this embodiment, the belt inlet of the left belt guide assembly 4 is horizontally aligned with the belt outlet of the left guiding assembly 3, and the belt outlet of the left belt guide assembly 4 is horizontally aligned with the lower part of the left pressing block 28; the belt inlet of the right belt guide assembly 8 is horizontally aligned with the lower part of the right pressing block 30, and the belt outlet of the right belt guide assembly 8 is aligned with the belt inlet of the right guiding assembly 9; the upper belt guide assembly 5 is inclined, and its belt outlet is aligned with the outer end of the flat belt hole of the left pressing block 28. The left belt guide assembly 4, the right belt guide assembly 8 and the upper belt guide assembly 5 have the same structure, and each includes a base block located in the middle and L-shaped cross-section base plates installed and fixed on both sides. A flat belt guide hole is formed between the bottom of the base block and the two base plates.

[0053] In this embodiment, the left guiding assembly 3 is arc-shaped and includes a left base with an arc-shaped inner surface and left baffles installed at the front and rear of the left base; the right guiding assembly 9 is arc-shaped and includes a right base with an arc-shaped inner surface and right baffles installed at the front and rear of the right base. After this packing device is installed on the frame of the packing machine, a semi-circular track is arranged between the left guiding assembly 3 and the right guiding assembly 9, and the bundled metal pipes pass through the aforementioned semi-circular track, and the packing belt led out by the right guiding assembly 9 moves in the semi-circular track and is introduced by the left guiding assembly 3.

[0054] A belt feeding motor (not shown in the figure) is also installed on the frame 1. A belt feeding wheel 2 is installed on the output shaft of the belt feeding motor. The packing belt conveyed by the belt feeding wheel 2 enters the belt inlet of the upper belt guide assembly 5. The belt feeding motor is installed in the left space on the left side of the support partition. As shown in the figure, the belt feeding wheel 2 is located at the front of the left space. Driven by the belt feeding motor, the belt feeding wheel 2 rotates, and the unwound packing belt bypasses the belt feeding wheel 2 and then is introduced into the upper belt guide assembly 5.

[0055] The belt feeding wheel 2 should provide the driving force for the movement of the packing belt. In this embodiment, a tensioning cylinder 22 is installed on the cross plate 24, and a chain type tensioner for pressing the packing belt is provided on the outer edge of the belt feeding wheel 2. The tensioning cylinder 22 controls the tightness or looseness of the chain type tensioner.

[0056] Specifically, the chain type tensioner is composed of a chain and rubber pressing wheels installed on the chain. An annular groove is provided on the edge of the belt feeding wheel 2, and the packing belt is located in the annular groove. The chain type tensioner surrounds the belt feeding wheel 2. The tensioning cylinder 22 drives a dial block to rotate, and the end of the chain type tensioner is connected to the dial block. When it is necessary to tension and fix the packing belt, the piston rod of the tensioning cylinder 22 acts, and the dial block pulls the end of the chain type tensioner to the right, then each rubber pressing wheel presses the packing belt in the annular groove of the belt feeding wheel 2. At this time, the belt feeding motor drives the belt feeding wheel 2 to rotate. Due to the frictional effect between the belt feeding wheel 2 and the packing belt, the packing belt is conveyed to the upper belt guiding assembly 5.

[0057] Working process:

[0058] The bundled metal pipes pass under the packing device. When they move to directly below the position where packing is required, the metal pipes pause. The first translation driving assembly drives the translation backing plate 18 to move forward, and the second translation driving assembly drives the guiding plate 34 to move forward. The tensioning cylinder 22 acts to tension and press the packing belt on the belt feeding wheel 2, and then the belt feeding motor drives the belt feeding wheel 2 to rotate, so that the packing belt is conveyed to the upper belt guiding assembly 5.

[0059] The packing belt first passes through the flat belt hole on the left pressing block 28, then horizontally passes through the flat gap in the front part of the guiding plate 34, then passes between the right pressing block 30 and the horizontal backing plate 18, then passes through the right belt guiding assembly 8, then passes through the right guiding assembly 9, then passes through the semi-circular track, then passes through the left belt guiding assembly 4, then passes between the left pressing block 28 and the horizontal backing plate 18, then the end of the packing belt extends to the right pressing block 30, and then the belt feeding motor stops rotating. At this time, the packing belt forms a loop, and a stacking area is formed under the welding assembly 11.

[0060] After that, the left pressing cylinder 15 and the right pressing cylinder 16 act, and both the left pressing block 28 and the right pressing block 30 descend and press and hold the packing belt. Then, the lifting cylinder 10 acts to lower the welding assembly 11, and the lower ends of the two welding contacts press on the stacked packing belts. Then, the welding motor rotates, and high-frequency friction is generated at the lower ends of the two welding contacts, melting and welding the materials of the packing belts together to form two left and right welding positions. After completing the welding operation, the lifting cylinder 10 acts to raise the welding assembly 11. Then, the left pressing cylinder 15 and the right pressing cylinder 16 act, and both the left pressing block 28 and the right pressing block 30 move upward. Since the upper guide belt assembly 5 is fixed, when the left pressing block 28 rises, a shearing effect is generated on the packing belt, cutting the packing belt and completing a complete packing operation.

Claims

1. A pipe packing device with a double-position welding function, characterized in that: It includes a frame (1), a middle base (6) is installed in the middle of the frame (1), two left and right pressing components are installed in the front of the middle base (6), a welding component (11) with a double welding head that can move up and down is provided between the two pressing components, and it also includes a pressing drive component that separately drives the two pressing components to generate pressing and releasing actions and a lifting drive component that drives the welding component (11) to move up and down; on both sides of the middle base (6), a left track plate (19) and a right track plate (20) are respectively installed, a translation backing plate (18) that can move back and forth is installed between the two track plates, a guide sleeve (33) is installed in the middle of the translation backing plate (18), a moving block (32) that can move back and forth is provided in the guide sleeve (33), a guide plate (34) with a horizontally penetrating flat gap is installed at the front end of the moving block (32), and it also includes a first translation drive component that drives the translation backing plate (18) to move back and forth and a second translation drive component that drives the moving block (32) to move back and forth; on both sides of the front of the translation backing plate (18), a left guide belt component (4) and a right guide belt component (8) are respectively installed, a left guiding component (3) is provided outside the left guide belt component (4), a right guiding component (9) is provided outside the right guide belt component (8), and an upper guide belt component (5) is provided above the left guide belt component (4); Vertical guide holes are provided on both the front left and front right of the middle base (6). The left pressing component includes a left pressing rod (27) and a left pressing block (28) installed at its bottom end. The right pressing component includes a right pressing rod (29) and a right pressing block (30) installed at its bottom end. A horizontally penetrating flat belt hole is also provided on the left pressing block (28); The welding component (11) includes a welding housing (11-2). The double welding head includes a first welding head (11-3) and a second welding head (11-4) provided in the welding housing (11-2), and the lower ends of both penetrate through the window at the bottom of the welding housing (11-2); elliptical drive holes are provided at the tops of both the first welding head (11-3) and the second welding head (11-4), and shaft holes are provided in the middles. A welding motor is installed on the top side of the welding housing (11-2), a welding drive shaft is installed on the output shaft of the welding motor, two left and right eccentric wheels are installed on the welding drive shaft and the two eccentric wheels are respectively located in the drive holes of the two welding heads, and a hinge shaft is installed in the middle of the welding housing (11-2) and the hinge shaft is located in the shaft holes of the two welding heads; The lifting drive component includes a lifting cylinder (10) installed on the frame (1), a connecting slider is installed at the lower end of its piston rod, a track block (11-1) with a chute is installed on the top of the welding housing (11-2), and the connecting slider is connected in cooperation with the track block (11-1); The tape inlet of the left tape guiding assembly (4) is horizontally aligned with the tape outlet of the left guiding assembly (3), and the tape outlet of the left tape guiding assembly (4) is horizontally aligned with the lower part of the left pressing block (28); the tape inlet of the right tape guiding assembly (8) is horizontally aligned with the lower part of the right pressing block (30), and the tape outlet of the right tape guiding assembly (8) is aligned with the tape inlet of the right guiding assembly (9); the upper tape guiding assembly (5) is inclined, and its tape outlet is aligned with the outer end of the flat tape hole of the left pressing block (28). The left guiding assembly (3) is in an arc shape, including a left base with an arc-shaped inner surface and left baffles installed at the front and rear of the left base. The right guiding assembly (9) is in an arc shape, including a right base with an arc-shaped inner surface and right baffles installed at the front and rear of the right base. A tape feeding motor is also installed on the frame (1). A tape feeding wheel (2) is installed on the output shaft of the tape feeding motor. The packing tape conveyed by the tape feeding wheel (2) enters the tape inlet of the upper tape guiding assembly (5); a cross plate (24) is installed on the middle part of the frame (1) by a back plate (23). A tensioning cylinder (22) is installed on the cross plate (24). A chain tensioner for pressing the packing tape is provided on the outer edge of the tape feeding wheel (2). The tensioning cylinder (22) controls the chain tensioner to be tightened or relaxed.

2. The pipe packing device with a double-position welding function as described in claim 1, characterized in that: The pressing and driving assembly includes a left pressing arm (25) and a right pressing arm (26) whose middle parts are hinged to the top of the middle base (6) by a pressing arm rotating shaft (31). The front end of the left pressing arm (25) is hinged to the upper end of the left pressing rod (27). The front end of the right pressing arm (26) is hinged to the upper end of the right pressing rod (29). It also includes a left lower pressing cylinder (15) and a right lower pressing cylinder (16). The cylinder ends of both are hinged to the frame (1). The lower end of the piston rod of the left lower pressing cylinder (15) is hinged to the rear end of the left pressing arm (25). The lower end of the piston rod of the right lower pressing cylinder (16) is hinged to the rear end of the right pressing arm (26).

3. The pipe packing device with a dual-position welding function as described in claim 2, wherein: The first translation driving assembly includes a swing arm base (13) installed on the back of the frame (1) and a rear swing arm (12) whose middle part is hinged to the swing arm base (13). A connecting seat (17) is installed at the rear of the translation cushion plate (18). The lower end of the rear swing arm (12) is hinged to the connecting seat (17). It also includes a push-pull cylinder (14) whose piston rod rear end is hinged to the upper end of the rear swing arm (12).

4. The pipe packing device with double-position welding function according to claim 3, characterized in that: The second translation driving assembly includes a flat push cylinder. The rear part of the cylinder body of the flat push cylinder is fixedly connected to the swing arm base (13). The front end of the piston rod of the flat push cylinder is connected to the rear part of the moving block (32).

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