Head stripping machine for heating cable

Abstract

The utility model relates to the technical field of heating cable production equipment, in particular to a heating cable head stripping machine which comprises a workbench and a clamping mechanism, the clamping mechanism comprises a chuck, a shell, a pull tube and a fastening screw, the shell is installed on the workbench, the chuck is in a round tube shape, the front end of the chuck is in a round table shape with a large end face, and the rear end of the chuck is provided with an external thread. Three strip-shaped openings are evenly formed in the front end face of the clamping head, a threaded hole corresponding to the clamping head is formed in one end of the pull pipe, a hand wheel is arranged at the other end of the pull pipe, a through installation hole is formed in the shell, and the front end opening of the installation hole is provided with an oblique angle which is the same as the angle of a circular truncated cone at the front end of the clamping head. The chuck and the pull tube are respectively inserted from the front end and the rear end of the mounting hole and are in threaded connection, and the fastening screw is mounted in the shell on the side surface of the chuck. According to the equipment, circular cutting of the circular pipe can be completed, burrs cannot be generated, rotation and the feeding amount of the heating cable are controllable, and the circular cutting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating cable production equipment, in particular to a heating cable head stripping machine. Background Art

[0002] The invention patent with the authorization announcement number CN 115474300 B provides an oil-in-tube heating cable structure. This type of heating cable is composed of a metal sheath, a mineral insulation layer, and a heating wire core from the outside to the inside. During the production process, in order to connect the power lead, the metal sheath and the mineral insulation layer need to be removed to expose the heating wire frame. The traditional production process is: 1. Cut off the metal sheath with a cutter or saw blade, 2. Deburr, 3. Encapsulate the insulation after connecting the power lead.

[0003] In the existing technology, ultrasonic cutting technology has been applied to a certain extent. Ultrasonic cutting has the advantages of smooth and firm incisions, accurate cutting edges, no deformation, no warping, no linting, no pulling, and no wrinkling. It can be used in metal pipe cutting to avoid burrs.

[0004] In the process of realizing the utility model, the inventor found that there are at least the following problems in the prior art: the prior art is relatively simple in its application of ultrasonic cutting technology, and the most common is a handheld ultrasonic cutting knife, which needs to be manually held for cutting. The positioning, rotation, and feeding of the material are completely determined by the worker based on experience and feel, and the stability of the cutting quality cannot be guaranteed. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, the utility model develops a heating cable head stripping machine, which can complete the ring cutting of round tubes without generating burrs, and the rotation and feed amount of the heating cable are controllable, thereby improving the ring cutting quality.

[0006] The technical solution to the technical problem solved by the utility model is as follows: an embodiment of the utility model provides a heating cable stripping machine for ring cutting the metal sheath of the heating cable, comprising a workbench, a feeding mechanism, a clamping mechanism, and a cutting mechanism. The feeding mechanism and the clamping mechanism are installed on the workbench, the cutting mechanism is installed on the feeding mechanism, and the cutting mechanism is arranged on the front end side of the clamping mechanism. The clamping mechanism comprises a chuck, a shell, a drawing tube, and a fastening screw. The shell is installed on the workbench, the chuck is in the shape of a circular tube, the front end of the chuck is in the shape of a truncated cone with a large end face, and the rear end is provided with an external thread. Three strip openings are evenly arranged on the front end face of the chuck, a threaded hole corresponding to the chuck is arranged at one end of the drawing tube, and a hand wheel is arranged at the other end. A penetrating mounting hole is arranged on the shell, and the front end opening of the mounting hole has a bevel guide angle, and the angle of the bevel is the same as the angle of the truncated cone at the front end of the chuck. The chuck and the drawing tube are respectively inserted from the front end and the rear end of the mounting hole and are connected by threads, and the fastening screw is installed in the shell on the side of the chuck.

[0007] As an optimization, a long strip-shaped slot is also provided on the rear end side of the chuck, and the width of the slot is greater than the screw diameter of the fastening screw.

[0008] As an optimization, a through circular hole is set in the center of the chuck, and three openings are evenly distributed outside the circular hole at the front end of the chuck, forming three 120-degree annular clamping jaws at the front end of the chuck.

[0009] As an optimization, a thrust bearing is provided between the hand wheel and the housing.

[0010] As an optimization, the feed mechanism includes a base, a slider, a feed screw, a front baffle, a rear baffle, a guide rod, and a spring. The base is fixed on the workbench, a slide groove is provided on the top of the base, the slider is installed in the slide groove, the front baffle and the rear baffle are respectively installed at the front and rear ends of the slide groove, the feed screw is installed on the front baffle, one end of the guide rod is connected to the rear end of the slider, and the other end passes through the guide hole on the baffle, the spring is arranged on the guide rod between the slider and the baffle, and the cutting mechanism is installed on the slider.

[0011] As an optimization, a pipe clamp is provided on the top of the sliding block, and the cutting mechanism is installed on the pipe clamp.

[0012] As an optimization, the slide groove on the top of the base is an inverted T-shape or dovetail shape, and the slider is a corresponding shape.

[0013] As an optimization, the cutting mechanism includes a driving power supply, a converter, and a cutting knife. The converter is installed on the pipe clamp, and an ultrasonic transducer and a horn are arranged in the converter. The driving power supply, the ultrasonic transducer, the horn, and the cutting knife are connected in sequence. The clamping mechanism is arranged horizontally, and the cutting knife is arranged longitudinally. The cutting knife is arranged on the front side of the clamp.

[0014] As an optimization, the length of the cutting blade is greater than the outer diameter of the heating cable.

[0015] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0016] 1. By setting a fastening screw, when the chuck needs to be fixed, the chuck is rotated so that the slot is facing the fastening screw, and then the fastening screw is tightened until the head of the screw is stuck in the slot, so that the chuck can be fixed. When the chuck needs to be released, the fastening screw is loosened.

[0017] 2. By rotating the feed screw, the slide block can be pushed backward, thereby realizing the feeding of the cutting mechanism.

[0018] 3. The driving power source converts the mains electricity into high-frequency alternating current and transmits it to the ultrasonic transducer; the ultrasonic transducer converts the input electrical energy into mechanical energy, and the transducer outputs longitudinal telescopic movement; the amplitude transformer amplifies the output amplitude of the transducer. The cutting knife uses the cutting edge to concentrate the vibration energy into the cutting part of the material to be cut. The cutting edge and the material to be cut collide repeatedly, and a tiny broken layer is generated in the cutting part of the material to be cut. Under the action of the vibration energy, this part softens and melts instantly, and the strength is greatly reduced. At this time, as long as a very small cutting force is applied, the purpose of cutting the material can be achieved. The cutting edge of the cutting knife only plays the role of slit positioning, energy output, and separation of materials. While cutting, the cutting part can be fused, and the cutting part is perfectly sealed without burrs.

[0019] 4. After the cutting blade of the cutting knife cuts into the heating cable for a certain distance, the heating cable is rotated to complete a circle of cutting. The cutting force of the cutting knife is released through longitudinal vibration energy. By setting the length of the cutting blade to be greater than the outer diameter of the heating cable, the cutting blade always covers the metal sheath of the heating cable, which can prevent the side of the blade from getting stuck at the cutting mouth when the heating cable rotates. The equipment can complete the circular cutting of round tubes without generating burrs. The rotation and feed amount of the heating cable are controllable, which improves the quality of circular cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model.

[0021] Figure 2 for Figure 1 A partial enlarged view of the E area.

[0022] Figure 3 It is a three-dimensional diagram of a clamping mechanism in one embodiment of the utility model.

[0023] Figure 4 This is a top view of a clamping mechanism in an embodiment of the utility model.

[0024] Figure 5 for Figure 4 Cross-sectional view along direction BB.

[0025] Figure 6 It is a three-dimensional diagram of a chuck in one embodiment of the utility model.

[0026] Figure 7 It is a three-dimensional diagram of a feeding mechanism in one embodiment of the utility model.

[0027] Figure 8 It is a top view of the feeding mechanism in one embodiment of the utility model.

[0028] Fig. 9 for Figure 8Cross-sectional view along the GG direction.

[0029] Fig.10 It is a front view of a feeding mechanism in one embodiment of the utility model.

[0030] Fig.11 for Fig.10 Cross-sectional view along the HH direction.

[0031] Among them: 1. workbench, 2. cutting mechanism, 3. clamping mechanism, 4. feeding mechanism, 5. heating cable, 21. converter, 22. cutting knife, 31. chuck, 32. shell, 33. pull tube, 34. fastening screw, 311. slot, 321. mounting hole, 331. handwheel, 41. base, 42. slider, 43. feeding screw, 44. front baffle, 45. rear baffle, 46. guide rod, 47. spring. DETAILED DESCRIPTION

[0032] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0033] Embodiment 1: Figures 1 to 11 An embodiment of the present utility model is as follows: Figure 1 , Figure 2 As shown, a heating cable head stripping machine is used to perform ring cutting on the metal sheath of the heating cable 5, including a workbench 1, a feeding mechanism 4, a clamping mechanism 3, and a cutting mechanism 2. The feeding mechanism 4 and the clamping mechanism 3 are installed on the workbench 1, and the cutting mechanism 2 is installed on the feeding mechanism 4. The cutting mechanism 2 is arranged on the front side of the clamping mechanism 3. The cutting mechanism 2 includes a driving power supply, a converter 21, and a cutting knife 22. The converter 21 is installed on the pipe clamp. The converter 21 is provided with an ultrasonic transducer and an horn. The driving power supply, the ultrasonic transducer, the horn, and the cutting knife 22 are connected in sequence. The clamping mechanism 3 is arranged horizontally, and the cutting knife 22 is arranged longitudinally. The cutting knife 22 is arranged on the front side of the clamp 31. The driving power supply converts the mains electricity into a high-frequency alternating current and transmits it to the ultrasonic transducer; the ultrasonic transducer converts the input electrical energy into mechanical energy, and the transducer outputs longitudinal telescopic movement; the horn amplifies the output amplitude of the transducer. The cutting knife uses the cutting edge to concentrate the vibration energy into the cutting part of the material being cut. The cutting edge and the material being cut collide repeatedly, and a tiny broken layer is generated in the cutting part of the material being cut. Under the action of the vibration energy, this part softens and melts instantly, and the strength is greatly reduced. At this time, as long as a small cutting force is applied, the purpose of cutting the material can be achieved. The cutting edge of the cutting knife only plays the role of slit positioning, energy output, and separation of materials. While cutting, it can have a fusion effect on the cutting part, and the cutting part is perfectly sealed without burrs.

[0034] The length of the blade of the cutting knife 22 is greater than the outer diameter of the heating cable. After the blade of the cutting knife 22 cuts into the heating cable for a certain distance, the heating cable is rotated to complete a circle of cutting. The cutting force of the cutting knife 22 is released through longitudinal vibration energy. By setting the length of the blade of the cutting knife 22 to be greater than the outer diameter of the heating cable, the blade of the cutting knife 22 always covers the metal sheath of the heating cable, which can prevent the blade side from being stuck at the cutting opening when the heating cable rotates.

[0035] like Figures 3 to 5 As shown, the clamping mechanism 3 includes a chuck 31, a shell 32, a pull tube 33, and a fastening screw 34. The shell 32 is installed on the workbench 1. The chuck 31 is in the shape of a round tube. The front end of the chuck 31 is in the shape of a truncated cone with a large end face, and the rear end is provided with an external thread. Three strip openings are evenly arranged on the front end face of the chuck 31. One end of the pull tube 33 is provided with a threaded hole corresponding to the chuck 31, and the other end is provided with a hand wheel 331. The shell 32 is provided with a through mounting hole 321. The front end opening of the mounting hole 321 is beveled, and the angle of the bevel is the same as the angle of the truncated cone at the front end of the chuck 31. The chuck 31 and the pull tube 33 are respectively inserted from the front end and the rear end of the mounting hole 321, and are connected by threads. The fastening screw 34 is installed in the shell 32 on the side of the chuck 31. By setting the fastening screw 34, the fastening screw 34 is tightened when the chuck 31 needs to be fixed, and the fastening screw 34 is loosened when the chuck 31 needs to be released. A thrust bearing is arranged between the hand wheel 331 and the shell 32.

[0036] like Figure 6 As shown, the rear end side of the chuck 31 is also provided with a long strip-shaped slot 311, and the width of the slot 311 is greater than the screw diameter of the fastening screw 34. When the chuck 31 needs to be fixed, the chuck 31 is rotated to make the slot 311 face the fastening screw 34, and then the fastening screw 34 is tightened until the head of the screw is stuck in the slot 311, so that the chuck 31 can be fixed. A through circular hole is set in the center of the chuck 31, and three openings are evenly distributed outside the circular hole at the front end of the chuck 31, and three 120-degree annular clamping claws are formed at the front end of the chuck 31.

[0037] like Figures 7 to 11As shown, the feeding mechanism 4 includes a base 41, a slider 42, a feeding screw 43, a front baffle 44, a rear baffle 45, a guide rod 46, and a spring 47. The base 41 is fixed on the workbench 1. A slide groove is provided on the top of the base 41. The slider 42 is installed in the slide groove. The front baffle 44 and the rear baffle 45 are respectively installed at the front and rear ends of the slide groove. The feeding screw 43 is installed on the front baffle 44. One end of the guide rod 46 is connected to the rear end of the slider 42, and the other end passes through the guide hole on the baffle 45. The spring 47 is provided on the guide rod 46 between the slider 42 and the baffle 45. The cutting mechanism 2 is installed on the slider 42. The slider 42 can be pushed to move backward by rotating the feeding screw 43, so as to realize the feeding of the cutting mechanism 2. A pipe clamp is provided on the top of the slider 42, and the cutting mechanism 2 is installed on the pipe clamp. The slide groove on the top of the base 41 is an inverted T-shape, and the slider 42 is a corresponding shape.

[0038] The equipment can complete the circular cutting of round tubes without generating burrs. The rotation and feed amount of the heating cable are controllable, which improves the circular cutting quality.

[0039] During operation, first tighten the fixing screw 34 to fix the chuck 31; then insert the heating cable 5 into the chuck 31, turn the handwheel 331 to rotate the pull tube 33, thereby pulling the chuck 31 through the threaded connection between the pull tube 33 and the chuck 31, so that the front end of the chuck 31 moves toward the mounting hole 321, and at the same time, the three jaws clamp the heating cable 5 to achieve clamping of the heating cable 5; rotate the feed screw 43 to push the slider 42 backward until the heating cable 5 contacts the blade of the cutting knife 22; supply power to the driving power supply of the cutting mechanism 2 to start the cutting mechanism 2; continue to rotate the feed screw 43 to push the slider 42 backward until the cutting knife 22 cuts into the inner cavity of the metal jacket of the heating cable 5; slowly rotate the handwheel 331 for one circle to complete the ring cutting of the heating cable.

[0040] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A heating cable stripping machine for cutting the metal sheath of a heating cable (5), characterized in that: The invention comprises a workbench (1), a feeding mechanism (4), a clamping mechanism (3), and a cutting mechanism (2); the feeding mechanism (4) and the clamping mechanism (3) are mounted on the workbench (1); the cutting mechanism (2) is mounted on the feeding mechanism (4); the cutting mechanism (2) is arranged on the front end side of the clamping mechanism (3); the clamping mechanism (3) comprises a chuck (31), a shell (32), a pull tube (33), and a fastening screw (34); the shell (32) is mounted on the workbench (1); the chuck (31) is in the shape of a round tube; the front end of the chuck (31) is in the shape of a truncated cone with a large end face, and the rear end is provided with an outer The front end surface of the chuck (31) is evenly provided with three strip openings, one end of the pull tube (33) is provided with a threaded hole corresponding to the chuck (31), and the other end is provided with a hand wheel (331), and the shell (32) is provided with a penetrating mounting hole (321), and the front end opening of the mounting hole (321) is beveled, and the angle of the bevel is the same as the angle of the front end cone of the chuck (31), the chuck (31) and the pull tube (33) are respectively inserted from the front end and the rear end of the mounting hole (321) and are connected by threads, and the fastening screw (34) is installed in the shell (32) on the side of the chuck (31).

2. A heating cable stripping machine according to claim 1, characterized in that: A long strip-shaped slot (311) is also provided on the rear end side surface of the clamp (31), and the width of the slot (311) is greater than the screw diameter of the fastening screw (34).

3. A heating cable stripping machine according to claim 1, characterized in that: A through circular hole is arranged at the center of the chuck (31), and three openings are evenly distributed outside the circular hole at the front end of the chuck (31), so that three 120-degree annular clamping jaws are formed at the front end of the chuck (31).

4. A heating cable stripping machine according to claim 1, characterized in that: A thrust bearing is provided between the hand wheel (331) and the housing (32).

5. A heating cable stripping machine according to claim 1, characterized in that: The feeding mechanism (4) comprises a base (41), a slider (42), a feeding screw (43), a front baffle (44), a rear baffle (45), a guide rod (46), and a spring (47). The base (41) is fixed on the workbench (1). A slide groove is arranged on the top of the base (41). The slider (42) is installed in the slide groove. The front baffle (44) and the rear baffle (45) are installed at the front and rear ends of the slide groove respectively. The feeding screw (43) is installed on the front baffle (44). One end of the guide rod (46) is connected to the rear end of the slider (42) and the other end passes through the guide hole on the baffle (45). The spring (47) is arranged on the guide rod (46) between the slider (42) and the baffle (45). The cutting mechanism (2) is installed on the slider (42).

6. A heating cable stripping machine according to claim 5, characterized in that: A pipe clamp is provided on the top of the sliding block (42), and the cutting mechanism (2) is installed on the pipe clamp.

7. A heating cable stripping machine according to claim 5, characterized in that: The slide groove on the top of the base (41) is in an inverted T-shape or dovetail shape, and the slider (42) is in a corresponding shape.

8. A heating cable stripping machine according to claim 6, characterized in that: The cutting mechanism (2) comprises a driving power source, a converter (21), and a cutting knife (22); the converter (21) is mounted on a pipe clamp; an ultrasonic transducer and a horn are arranged in the converter (21); the driving power source, the ultrasonic transducer, the horn, and the cutting knife (22) are connected in sequence.

9. A heating cable stripping machine according to claim 8, characterized in that: The length of the cutting blade of the cutting knife (22) is greater than the outer diameter of the heating cable.

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