Rotatable die for forming long and thin insulating screw rod

Abstract

The utility model relates to the technical field of screw processing, and discloses a self-rotating die for forming an insulating slender screw, which comprises a fixed base, a balance component is mounted on a rear side bolt at the upper end of the fixed base, a heating component is mounted above the front end of the balance component in a sleeving manner, and a feeding component is arranged at the front end of the heating component. A right support is installed on the front side of the feeding assembly through bolts, and a cutting machine is installed on the upper portion of the front end of the right support through screws. According to the utility model, the heating pipe is used for preheating the workpiece to be processed in the feeding cylinder, so that the surface of the workpiece to be processed is more easily subjected to plastic deformation, the subsequent processing difficulty is reduced, and meanwhile, through the effects of the supporting piece, the tightener and the transverse horizontal cylinder, when the workpiece to be processed is processed, the transverse angle of the whole processing area is in a straight line; the screw is stressed more uniformly in the manufacturing process, so that the screw is prevented from being deformed in the manufacturing process due to non-uniform stress, and the percent of pass of screw manufacturing is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw processing, in particular to a rotatable mold for forming an insulating slender screw. Background Technique

[0002] Screws are widely used as general fasteners in various fields and even in daily life when paired with nuts or internal threads. Currently, most of the fasteners in use are made of metal, which are widely used because of their mature manufacturing process, low price, high strength, and complete specifications. In special fields such as electricity, metallurgy, ocean engineering, chemical industry, energy-saving housing, transportation, and communication, in addition to the general characteristics of general fasteners, fasteners are also required to have special properties such as corrosion resistance, insulation, heat insulation, and non-magnetization. Due to the limitations of the material itself, it is difficult for metal materials to meet the requirements. Plastic fasteners can meet the requirements of corrosion resistance, insulation, heat insulation, and non-magnetization, but their applications are limited by the disadvantages of low strength and non-flame retardancy. Therefore, thermosetting non-metallic composite fasteners that can meet both corrosion resistance, insulation, heat insulation, non-magnetization, and high strength and flame retardancy requirements have a very strong market demand in recent years.

[0003] Since the elastic modulus of thermosetting composites is low and almost no plastic deformation occurs, the methods of rolling and thread rolling commonly used for metal screws are not applicable to composites. Currently, for the processing of such screws, the rod bodies formed by pultrusion of composites are mostly used as semi-finished products, and threads are machined on the surface of the rod bodies by mechanical processing methods. The machining of long and slender rod bodies is a difficult problem even for metal materials. It is very difficult to control the deformation of the rod bodies of the workpieces during the processing, and the machining performance of composites is worse than that of metal materials, resulting in easy deformation and low yield rate during the processing of long composite screws by pultrusion. Therefore, a rotatable mold for forming an insulating slender screw is needed to solve the above problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a rotatable mold for forming an insulating slender screw, which solves the problems of easy deformation and low yield rate during the processing of long composite screws by pultrusion.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model is realized by the following technical solutions: A rotatable mold for forming an insulating slender screw, comprising a fixed base, a balance assembly is bolted to the rear side of the upper end of the fixed base, a heating assembly is sleeved above the front end of the balance assembly, a feeding assembly is provided at the front end of the heating assembly, a right bracket is bolted to the front side of the feeding assembly, a cutting machine is screwed above the front end of the right bracket, a collection box is provided below the cutting machine, a left bracket is bolted to the front end of the collection box, a pulling assembly is sleeved in the middle of the front end of the left bracket, a pull rod is threadedly installed on the outside of the pulling assembly, and a discharge box is bolted to the front end of the pull rod.

[0008] Optionally, the balance assembly includes a support box, a rolling bearing, a rotating motor, a support member and a tightening device. A rolling bearing is embedded in the upper end of the support box, a rotating motor is provided below the left end of the support box, a support member is sleeved at the front end of the rotating motor, and a tightening device is threadedly installed on the upper end of the support member.

[0009] Optionally, the heating assembly includes a feeding cylinder, a heating pipe, a conductive ring and a controller. A heating pipe is sleeved on the outer end of the feeding cylinder, a conductive ring is sleeved on the right end of the heating pipe, and a controller is provided below the conductive ring.

[0010] Optionally, the feeding assembly includes a driving motor, a driving wheel, a rotating wheel and a pushing bearing. A driving wheel is provided on the right side of the driving motor, a rotating wheel is provided above the driving wheel, and a pushing bearing is sleeved on the right side of the rotating wheel.

[0011] Optionally, the pulling assembly includes an outer cylinder, an inner embedded tube, a meshing ring, an inner threaded tube core and a tube head. An inner embedded tube is sleeved at the front end of the outer cylinder, a meshing ring is sleeved on the outside of the inner embedded tube, an inner threaded tube core is embedded in the inner embedded tube, and a tube head is snap-fitted at the front end of the inner threaded tube core.

[0012] Optionally, the overall heights of the right bracket and the left bracket are the same, and convex plates are provided at the upper ends of the opposite sides of the right bracket and the left bracket. The lower end of the cutting machine is in contact with the convex plates. The cutting machine is integrally composed of two upper and lower parts. Four pull rods are horizontally distributed in parallel.

[0013] Optionally, the inside of the feeding cylinder is of a hollow structure, and the heating pipe, the conductive ring and the controller are electrically connected.

[0014] Optionally, three clamping blocks are provided on the outside of the front end of the inner embedded tube, three clamping grooves are symmetrically distributed on the inner side of the meshing ring, and the clamping blocks at the outer end of the inner embedded tube are adapted to the clamping grooves opened on the inner side of the meshing ring.

[0015] In summary, the technical effects and advantages of the present utility model are as follows:

[0016] 1. The structure of the present utility model is reasonable. The heating pipe is arranged to preheat the workpiece to be processed inside the feeding cylinder, making the surface of the workpiece to be processed more easily plastically deformed and reducing the difficulty of subsequent processing. At the same time, through the action of the support member, the tightening device and the horizontal cylinder, the transverse angle of the overall processing area of the workpiece to be processed is a straight line during processing, making the force on the screw more uniform during manufacturing, thereby preventing the screw from deforming in shape due to uneven force during the manufacturing process, and thus improving the qualified rate of screw manufacturing.

[0017] 2. In the present utility model, the traction motor at the upper end of the discharge box is set to drive the engagement ring to start working. Since the engagement ring and the embedded pipe are clamped and fixed to each other, the outer cylinder will also be driven to rotate. At the same time, the outer cylinder and the inner threaded pipe core are connected by a pin, and the inner threaded pipe core will also be driven to rotate, making the inner threaded pipe core perform a spiral movement with the external thread of the workpiece to be processed, driving the screw of the workpiece to be processed to generate a pulling force. While pulling, the cutting machine will continue to process the rear end of the workpiece to be processed. The entire process can automatically complete the processing of the entire long screw, improving the processing efficiency.

[0018] 3. In the present utility model, through the design of the transmission motor, the transmission wheel can be made to work, driving the upper rotating wheel to start working, and then driving the feeding cylinder to rotate, so that when the workpiece to be processed is preheated, the overall heating surface is annular, which can be more sufficient, improving the preheating efficiency. At the same time, through the arranged thrust bearing, the traction force generated by the rotation of the feeding cylinder can be effectively reduced to ensure that the entire preheating process can be more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a sectional structural schematic diagram of the balance assembly, heating assembly and feeding assembly of the present utility model;

[0021] Figure 3 is a three-dimensional separated structural schematic diagram of the right support, cutting machine, collection box and left support of the present utility model;

[0022] Figure 4 is a three-dimensional separated structural schematic diagram of the pulling assembly of the present utility model;

[0023] Figure 5 is a sectional structural schematic diagram of the discharge box of the present utility model.

[0024] In the figure: 1. Fixed base; 2. Balancing component; 3. Heating component; 4. Feeding component; 5. Right bracket; 6. Cutting machine; 7. Collection box; 8. Left bracket; 9. Pulling component; 10. Pull rod; 11. Discharge box; 201. Support box; 202. Rolling bearing; 203. Rotating motor; 204. Support member; 205. Tightener; 301. Feeding tube; 302. Heating tube; 303. Conductive ring; 304. Controller; 401. Driving motor; 402. Driving wheel; 403. Rotating wheel; 404. Thrust bearing; 901. Outer cylinder; 902. Embedded tube; 903. Meshing ring; 904. Inner threaded tube core; 905. Tube head. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment: Refer to Figures 1 to 5 A rotatable mold for forming an insulating slender screw shown in the figure, including a fixed base 1. A balancing component 2 is bolted to the rear side of the upper end of the fixed base 1. A heating component 3 is sleeved and installed above the front end of the balancing component 2. A feeding component 4 is provided at the front end of the heating component 3. A right bracket 5 is bolted to the front side of the feeding component 4. A transverse horizontal cylinder is installed at the rear end of the right bracket 5, which can maintain the horizontal angle of the workpiece to be processed. And the inner diameter of the transverse horizontal cylinder can be disassembled and replaced according to the diameter change of the workpiece. The overall heights of the right bracket 5 and the left bracket 8 are the same, and convex plates are provided at the upper ends of the opposite sides of the right bracket 5 and the left bracket 8. A cutting machine 6 is screwed and installed above the front end of the right bracket 5. The lower end of the cutting machine 6 is in contact with the convex plate. And the cutting machine 6 is integrally composed of two upper and lower parts. The upper structure is a piston hydraulic structure, and the lower structure is a telescopic cutting structure. A collection box 7 is provided below the cutting machine 6. A left bracket 8 is bolted to the front end of the collection box 7. A pulling component 9 is sleeved and installed in the middle of the front end of the left bracket 8. A pull rod 10 is threadedly installed on the outside of the pulling component 9. Four pull rods 10 are horizontally distributed in parallel to tighten the left bracket 8 and the discharge box 11, further improving the stability of the installation structure. The front end of the pull rod 10 is bolted to the discharge box 11. A traction motor is installed inside the upper end of the discharge box 11. And the transmission gear of the traction motor meshes with the meshing ring 903, facilitating the power transmission work.

[0027] As an optional implementation mode in this embodiment, as Figure 1 and Figure 2As shown in the figure, the balance component 2 includes a support box 201, a rolling bearing 202, a rotating motor 203, a support member 204, and a tightening device 205. A rolling bearing 202 is embedded and installed at the upper end inside the support box 201. A rotating motor 203 is provided below the left end of the support box 201. A support member 204 is sleeved and installed at the front end of the rotating motor 203. A tightening device 205 is threadedly installed at the upper end of the support member 204. The heating component 3 includes a feed cylinder 301, a heating pipe 302, a conductive ring 303, and a controller 304. The interior of the feed cylinder 301 is of a hollow structure. A heating pipe 302 is sleeved and installed at the outer end of the feed cylinder 301. A conductive ring 303 is sleeved and installed at the right end of the heating pipe 302. A controller 304 is provided below the conductive ring 303. The heating pipe 302, the conductive ring 303, and the controller 304 are electrically connected. The feeding component 4 includes a driving motor 401, a driving wheel 402, a rotating wheel 403, and a pushing bearing 404. A driving wheel 402 is provided on the right side of the driving motor 401. A rotating wheel 403 is provided above the driving wheel 402. A pushing bearing 404 is sleeved and installed on the right side of the rotating wheel 403.

[0028] By setting the support member 204, the tightening device 205 can be lifted to the same height as the rolling bearing 202, ensuring that the horizontal central axes of the two are aligned. Then, the front end of the workpiece to be processed is passed through the inside of the tightening device 205 and the rolling bearing 202 and extended into the feed cylinder 301. After extending to an appropriate length, the controller 304 is operated to turn on the power source connected to the external conductive ring 303 to supply power to the heating pipe 302 and preheat the workpiece to be processed inside. When the heating time reaches the preset time, the rotating motor 203 starts to work, driving the support member 204 to displace to the left along the transmission shaft of the rotating motor 203, allowing the front end of the heated workpiece to be processed to pass through the feed cylinder 301 and pass through the middle of the horizontal cylinder at the right end of the right support 5 and contact the lower structure of the cutting machine 6 for processing. During the whole process, by preheating the workpiece to be processed, its surface is more prone to plastic deformation, reducing the difficulty of subsequent processing. At the same time, through the functions of the support member 204, the tightening device 205, and the horizontal cylinder, the horizontal angle of the overall processing area of the workpiece to be processed is a straight line during processing, making the force on the screw more uniform during manufacturing, thereby preventing the screw from deforming due to uneven force during the manufacturing process and improving the qualification rate of screw manufacturing.

[0029] Through the design of the driving motor 401, the driving wheel 402 can be made to work, driving the upper rotating wheel 403 to start working, and then driving the feed cylinder 301 to rotate, enabling the overall heating surface of the workpiece to be processed to be annular during preheating, which can be more sufficient, improving the preheating efficiency. At the same time, through the provided pushing bearing 404, the traction force generated by the rotation of the feed cylinder 301 can be effectively reduced to ensure that the entire preheating process can be more stable.

[0030] As Figure 1 and Figure 4 shown in the figure, in this embodiment, the pulling assembly 9 includes an outer cylinder 901, an embedded tube 902, a meshing ring 903, an internally threaded tube core 904 and a tube head 905. The front end of the outer cylinder 901 is sleeved with the embedded tube 902. Three clamping blocks are arranged on the outer side of the front end of the embedded tube 902. The outer side of the embedded tube 902 is sleeved with the meshing ring 903. Three clamping grooves are symmetrically distributed on the inner side of the meshing ring 903. The clamping blocks at the outer end of the embedded tube 902 are adapted to the clamping grooves formed on the inner side of the meshing ring 903. The internally threaded tube core 904 is embedded and installed inside the embedded tube 902. The internally threaded tube core 904 can be replaced according to the external thread size of the workpiece to be processed. The thread formed on the inner wall of the internally threaded tube core 904 is adapted to the external thread size of the workpiece to be processed. The front end of the internally threaded tube core 904 is buckled and installed with the tube head 905. The tube head 905 is reinforced with the bearing inside the discharge box 11.

[0031] After the external thread of the workpiece to be processed is machined, the workpiece to be processed is extended forward into the internally threaded tube core 904. By means of the traction motor arranged at the upper end of the discharge box 11, the meshing ring 903 is driven to work. Since the meshing ring 903 and the embedded tube 902 are clamped and fixed to each other, the outer cylinder 901 will also be driven to rotate. At the same time, the outer cylinder 901 and the internally threaded tube core 904 are connected by a pin, and the internally threaded tube core 904 will also be driven to rotate, enabling the internally threaded tube core 904 and the external thread of the workpiece to be processed to perform a spiral movement, driving the screw of the workpiece to be processed to generate a pulling force. While pulling, the cutting machine 6 will continue to process the rear end of the workpiece to be processed. The entire process can automatically complete the processing of the entire long screw, improving the processing efficiency.

[0032] Working principle of the present utility model: Before starting the processing work of the rotatable mold for forming the insulated slender screw, through the provided support member 204, the tightening device 205 can be lifted to the same height as the rolling bearing 202, ensuring that their horizontal central axes are aligned. Then, the front end of the workpiece to be processed is passed through the inside of the tightening device 205 and the rolling bearing 202 and extended into the feeding cylinder 301. After extending to an appropriate length, the controller 304 is operated to turn on the power source connected to the outside of the conductive ring 303 to supply power to the heating tube 302 and preheat the workpiece to be processed inside. When the heating time reaches the preset time, the provided rotating motor 203 starts to work, driving the support member 204 to displace to the left along the transmission shaft of the rotating motor 203, so that the front end of the workpiece after heating passes through the feeding cylinder 301, passes through the middle of the horizontal cylinder at the right end of the right support 5, and contacts the lower structure of the cutting machine 6 to carry out the processing work. After the thread processing at the front end of the workpiece to be processed is completed, the front end of the workpiece to be processed will enter the internal thread tube core 904. Through the traction motor at the upper end of the provided discharge box 11, the meshing ring 903 is driven to work. Since the meshing ring 903 and the embedded tube 902 are mutually clamped and fixed, the outer cylinder 901 will also be driven to rotate. At the same time, the outer cylinder 901 and the internal thread tube core 904 are connected by a pin, and the internal thread tube core 904 will also be driven to rotate, causing a spiral movement between the internal thread tube core 904 and the external thread of the workpiece to be processed, driving a pulling force on the screw of the workpiece to be processed. While pulling, the cutting machine 6 will continue to process the rear end of the workpiece to be processed. The entire process can automatically complete the processing of the entire long screw, improving the processing efficiency.

[0033] All the electrical components mentioned in this article are electrically connected to the external main controller and the 220V mains power supply, and the main controller can be a conventional known device such as a computer for control.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A rotatable mold for forming an insulating slender screw, comprising a fixed base (1), characterized in that: A balance component (2) is bolted to the rear side of the upper end of the fixed base (1). Above the front end of the balance component (2), a heating component (3) is sleeved and installed. A feeding component (4) is provided at the front end of the heating component (3). A right support (5) is bolted to the front side of the feeding component (4). Above the front end of the right support (5), a cutting machine (6) is screwed and installed. A collection box (7) is provided below the cutting machine (6). A left support (8) is bolted to the front end of the collection box (7). In the middle of the front end of the left support (8), a pulling component (9) is sleeved and installed. A pull rod (10) is threadedly installed on the outer side of the pulling component (9). The front end of the pull rod (10) is bolted to a discharge box (11).

2. The rotatable die for forming an insulating slender screw rod according to claim 1, wherein: The balance component (2) includes a support box (201), a rolling bearing (202), a rotary motor (203), a support member (204), and a tightening device (205). The rolling bearing (202) is embedded in the upper end inside the support box (201). A rotary motor (203) is provided below the left end of the support box (201). The support member (204) is sleeved and installed at the front end of the rotary motor (203). The tightening device (205) is threadedly installed at the upper end of the support member (204).

3. The rotatable die for forming an insulating slender screw rod according to claim 1, characterized in that: The heating component (3) includes a feeding cylinder (301), a heating pipe (302), a conductive ring (303), and a controller (304). The heating pipe (302) is sleeved and installed on the outer end of the feeding cylinder (301). The conductive ring (303) is sleeved and installed at the right end of the heating pipe (302). The controller (304) is provided below the conductive ring (303).

4. The self-rotatable mold for forming an insulating elongated screw according to claim 1, wherein: The feeding component (4) includes a drive motor (401), a drive wheel (402), a rotating wheel (403), and a thrust bearing (404). The drive wheel (402) is provided on the right side of the drive motor (401). The rotating wheel (403) is provided above the drive wheel (402). The thrust bearing (404) is sleeved and installed on the right side of the rotating wheel (403).

5. The self-rotating mold for forming an insulating elongated screw according to claim 1, wherein: The pulling component (9) includes an outer cylinder (901), an inner embedded pipe (902), a meshing ring (903), an internally threaded pipe core (904), and a pipe head (905). The inner embedded pipe (902) is sleeved and installed at the front end of the outer cylinder (901). The meshing ring (903) is sleeved and installed on the outer side of the inner embedded pipe (902). The internally threaded pipe core (904) is embedded in the inner embedded pipe (902). The pipe head (905) is snap-fitted and installed at the front end of the internally threaded pipe core (904).

6. The rotatable die for forming an insulating slender screw according to claim 1, wherein: The overall heights of the right support (5) and the left support (8) are the same, and convex plates are provided at the upper ends of the opposite sides of the right support (5) and the left support (8). The lower end of the cutting machine (6) is in contact with the convex plates. The cutting machine (6) is integrally composed of two upper and lower parts. Four pull rods (10) are horizontally and parallelly distributed.

7. The self-rotating mold for forming an insulating elongated screw according to claim 3, wherein: The inside of the feeding cylinder (301) is of a hollow structure. The heating pipe (302), the conductive ring (303), and the controller (304) are electrically connected to each other.

8. An aut-rotatable mold for forming an insulating slender screw according to claim 5, characterized in that: Three clamping blocks are provided on the outer side of the front end of the embedded tube (902), and three clamping grooves are symmetrically distributed on the inner side of the meshing ring (903). The clamping blocks at the outer end of the embedded tube (902) are adapted to the clamping grooves formed on the inner side of the meshing ring (903).

Images