Hot stretching mechanism of plastic wire drawing machine

Abstract

The utility model discloses a hot stretching mechanism of a plastic wire drawing machine, which comprises a mounting seat, the mounting seat is provided with a hot stretching mechanism, and the hot stretching mechanism comprises a box body, a mounting plate, an air cylinder, a hinge strip I, a hinge strip II, a positioning rod, an extrusion roller, a feeding roller, a discharging roller, a bracket, a control panel and a heating assembly, the plastic wire drawing machine solves the problems that some existing plastic wire drawing machines can only stretch out plastic flat wires with the same size in a hot drawing mode, production requirements cannot be well met at present with rapid development of the times, but the cost for replacing the whole plastic wire drawing machine is large, and some factories cannot bear replacement cost.

Description

Technical Field

[0001] This utility model relates to the field of plastic wire drawing machine technology, and in particular to a hot stretching mechanism for a plastic wire drawing machine. Background Technology

[0002] Plastic filament drawing machines use polypropylene and high-density ethylene as raw materials. Through heating, extrusion, slitting, and stretching, flat filaments are formed. After being wound up, they are fed into circular looms for weaving. Plastic flat filament products are widely used in various fields such as petroleum, chemical, construction, textile, pharmaceutical, aviation, aerospace, highways, railways, garden protection, aquaculture, breeding, and metallurgical machinery.

[0003] However, some existing plastic wire drawing machines can only be hot-drawn into plastic flat wires of the same size, which can no longer meet the production needs in today's rapidly developing world. However, the cost of replacing the entire plastic wire drawing machine is too high, and some factories cannot afford the replacement cost. Utility Model Content

[0004] This application provides a hot stretching mechanism for a plastic wire drawing machine, which can solve the problem that some plastic wire drawing machines cannot hot stretch plastic flat wires of different sizes, causing factories to be unable to meet production needs. However, the cost of replacing the entire plastic wire drawing machine is too high, and some factories cannot afford the replacement cost.

[0005] This application provides a hot stretching mechanism for a plastic wire drawing machine, including a mounting base on which a hot stretching mechanism is mounted. The hot stretching mechanism includes a housing, a mounting plate, a cylinder, a first hinge bar, a second hinge bar, a positioning rod, an extrusion roller, a feed roller, an output roller, a bracket, a control panel, and a heating assembly. The housing has a cavity, and the housing has a slot that penetrates through it. The feed roller consists of two sections, upper and lower, with brackets on both sides. The feed roller is connected to the brackets, which are mounted on the housing. The mounting plate is located within the cavity and mounted on the mounting base. The first hinge bar and... Two hinge bars are hinged together, and both hinge bars one and two are hinged to the mounting plate. The positioning rod is fixedly connected to hinge bar one. The cylinder is hinged to the mounting plate, and the output shaft of the cylinder is hinged to the positioning rod. A pressing roller is installed on hinge bar one. With the hinge center of hinge bar one and hinge bar two as the center, the positioning rod, cylinder, and pressing roller are symmetrically arranged on hinge bar two. The discharge roller is installed on the other side of the mounting plate. A slot two is opened on the mounting plate. The heating component is set in the cavity and is located between the feeding roller and the pressing roller. The heating component is installed on the housing. The control panel is installed on the housing.

[0006] Furthermore, the bracket has a waist-shaped groove, a bushing is provided in the waist-shaped groove, the feed roller is installed on the bushing, one end of the bushing has a protrusion, the other end of the bushing has a thread, and a nut is fitted on the thread.

[0007] Furthermore, the heating assembly includes a power supply and a heating tube, with both ends of the heating tube fixedly connected to the power supply, and the heating tube is arranged in a spiral ring.

[0008] Furthermore, a support rod is fixedly connected to one side of the hinge bar, a telescopic rod is provided below the support rod, the telescopic rod is fixedly connected to the mounting base, a support block is fixedly connected to the support rod, a support rod is fixedly connected to the hinge bar, a telescopic rod is provided above the support rod, a support block is fixedly connected to the telescopic rod, and the same heat-resistant pad is fixedly connected to both the support block and the support block.

[0009] Furthermore, a mounting block is provided on the rear side of the discharge roller, and a mounting groove is provided on the mounting block, in which cleaning cotton is installed.

[0010] Furthermore, the enclosure has several ventilation openings, and each ventilation opening is fitted with a grid cover.

[0011] In summary, the hot stretching mechanism of a plastic filament drawing machine disclosed in this application has the beneficial effects of being able to hot stretch plastic flat filaments of different sizes and reducing factory replacement costs. Attached Figure Description

[0012] Figure 1 A perspective view of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the box body of the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the box on the other side of the utility model.

[0015] Figure 4 This is a schematic diagram of the mounting block structure in the utility model.

[0016] Reference numerals: 1. Mounting base; 2. Thermal stretching mechanism; 201. Housing; 202. Mounting plate; 203. Cylinder; 204. Hinge strip one; 205. Hinge strip two; 206. Positioning rod; 207. Extrusion roller; 208. Feed roller; 209. Discharge roller; 210. Bracket; 211. Heating component; 3. Cavity; 4. Empty slot one; 5. Empty slot two; 6. Waist-shaped slot; 7. Bushing; 8. Power supply; 9. Heating tube; 10. Support rod one; 11. Telescopic rod one; 12. Support block one; 13. Support rod two; 14. Telescopic rod two; 15. Support block two; 16. Mounting block; 17. Mounting groove; 18. Cleaning cotton; 19. Ventilation opening; 20. Grid cover. Detailed Implementation

[0017] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

[0018] like Figures 1 to 4 The aforementioned hot stretching mechanism of a plastic filament drawing machine includes a mounting platform, on which a hot stretching mechanism 2 for hot stretching plastic filaments is mounted.

[0019] The hot stretching mechanism 2 includes a housing 201, a mounting plate 202, a cylinder 203, a first hinge bar 204, a second hinge bar 205, a positioning rod 206, a pressing roller 207, a feeding roller 208, a discharging roller 209, a bracket 210, a control panel, and a heating assembly 211. The feeding roller 208 consists of two identical feed rollers, an upper and a lower one. A bracket 210 is provided on each side of the feeding roller 208, and the feeding roller 208 is mounted on the bracket 210. The bracket 210 is fixedly connected to one end of the housing 201. An opening is provided inside the housing 201. Cavity 3, mounting plate 202 is fixedly connected to mounting platform, and mounting plate 202 is located inside cavity 3. A first hinge bar 204 and a second hinge bar 205 are respectively provided on both sides of cylinder 203. One end of the first hinge bar 204 is hinged to one end of the second hinge bar 205, and the hinge points of the first and second hinge bars 204 are simultaneously hinged to mounting plate 202. One side of the first hinge bar 204 and one side of the second hinge bar 205 are in contact with each other. A pressure roller 207 is provided between the first hinge bars 204, and the pressure roller 207 is rotatably connected to the first hinge bar 204. A positioning rod 206 is provided between the first hinge bar 204. The positioning rod 206 is fixedly connected to the first hinge bar 204. The output shaft of the cylinder 203 is hinged to the positioning rod 206. The body of the cylinder 203 is hinged to the mounting plate 202. With the hinge point of the first hinge bar 204, the second hinge bar 205, and the mounting plate 202 as the center, the extrusion roller 207, the cylinder 203, and the positioning rod 206 are symmetrically arranged on the second hinge bar 205. The gap between the two extrusion rollers 207 is adjusted by the two cylinders 203, thereby controlling the size of the extruded flat wire. A positioning rod 206 is installed on the other side of the mounting plate 202. The device is equipped with a discharge roller 209. A heating component 211 is provided between the feed roller 208 and the extrusion roller 207. The heating component 211 is located in the cavity 3 and is fixedly connected to the box body 201. The heating component 211 is used to quickly heat the plastic filament. A slot 4 for plastic boxes to enter and exit is provided on the box body 201, and a slot 5 for plastic to enter and exit is provided on the mounting plate 202. The control panel is installed on the box body 201 and is located on the outside of the box body 201. The control panel is used to control the temperature of the heating component 211 and the distance of the two cylinders 203 pressing down.

[0020] Furthermore, a waist-shaped groove 6 is provided on the bracket 210, and a bushing 7 is slidably arranged in the waist-shaped groove 6. The feed roller 208 is installed on the bushing 7 and is rotatably connected to the bushing 7. A protrusion is provided on one side of the bushing 7. The protrusion is circular and its diameter is larger than that of the waist-shaped groove 6, which is used to restrict the bushing 7. A thread is provided on the other side of the bushing 7, and a matching nut is provided on the thread. The bushing 7 is fastened by the protrusion and the nut. The position between the two feed rollers 208 can be adjusted by loosening the nut to adapt to plastic filaments or plastic drawing machines of different sizes.

[0021] The heating component 211 includes a power supply 8 and a heating tube 9. The power supply 8 is located inside the cavity 3 and is fixedly connected inside the cavity 3. The heating tube 9 is installed on the power supply 8. One end of the heating tube 9 is fixed to the positive terminal of the power supply 8, and the other end of the heating tube 9 is fixed to the negative terminal of the power supply 8. The heating tube 9 is in the shape of a spiral ring. Traditional hot stretching mechanisms 2 mostly use electric heating tubes for heating. However, electric heating tubes have low temperature control accuracy, and there is inertia in heating and cooling. The heating and cooling are slow and the energy consumption is huge. Electromagnetic heating not only has high temperature accuracy, but also can eliminate the inertia of heating. The heating and cooling are rapid and efficient, and the energy consumption is greatly reduced compared with electric heating tubes.

[0022] like Figure 2 and Figure 3 As shown, a support rod 10 is fixedly connected to a hinge bar 204 on one side. A telescopic rod 11 is located below the support rod 10. The extension height of the telescopic rod 11 is controlled by the tightening of bolts. The telescopic rod 11 is mounted on a mounting platform. A support block 12 is fixedly connected to the top of the telescopic rod 11. On the other side of the hinge bar 204 where the support rod 10 is mounted, a support rod 13 is located. The support rod 13 is fixedly connected to the hinge bar 205. A telescopic rod 14 is located above the support rod 13. The extension height of the telescopic rod 14 is controlled by the tightening or loosening of bolts. The telescopic rod 14 is fixedly connected to the housing 201. A support block 15 is fixedly connected to the top of the telescopic rod 14. Heat-resistant pads are fixedly connected to the support blocks 12 and 15. The height of the telescopic rod can be adjusted according to the required dimensions. When the cylinder 203 moves to a certain range, the support blocks 12 and 15 will simultaneously restrict the support rods 10 and 23, which can further increase the extrusion accuracy of the extrusion roller 207 based on the cylinder 203.

[0023] An installation block 16 is provided on the rear side of the discharge roller 209. The two ends of the installation block 16 are fixedly connected to the housing 201. An installation groove 17 is provided on the installation block 16. A cleaning cotton 18 is installed in the installation groove 17. When the extruded plastic flat yarn may have some dust or impurities left on the surface, the cleaning cotton 18 will clean these away when the flat yarn passes through it.

[0024] Several ventilation openings 19 are provided on the box 201. All ventilation openings 19 are located on the rear side of the extrusion roller 207. A grid cover is installed on the ventilation opening 19. The ventilation opening 19 can not only reduce the residual temperature of the box 201, but also provide ventilation, cooling and shaping for the plastic filaments that have just been extruded. The grid cover can prevent larger debris from falling into the box 201.

[0025] Working principle of the utility model: When the plastic filament enters the box 201 through the feed roller 208, it is first added by the heating component 211. Then, the upper and lower cylinders 203 will push the two extrusion rollers 207 downward. The pressing parameters can be controlled by the control panel. By controlling the distance between the two extrusion rollers 207, plastic flat filaments of different sizes can be extruded.

Claims

1. A hot drawing mechanism of a plastic wire drawing machine comprising a mounting seat (1), characterized in that, The mounting base (1) is provided with a hot stretching mechanism (2), the hot stretching mechanism (2) comprises a box (201), a mounting plate (202), a gas cylinder (203), a hinged strip one (204), a hinged strip two (205), a positioning rod (206), a squeezing roller (207), a feeding roller (208), a discharging roller (209), a support (210), a control panel and a heating assembly (211), the box (201) is provided with a cavity (3) therein, the box (201) is provided with a first air slot (4) on the side, the first air slot (4) penetrates through the box (201), the feeding roller (208) is divided into two, the feeding roller (208) is provided with a support (210) on the two sides, the feeding roller (208) is connected with the support (210), and the support (210) is mounted on the box (201), the mounting plate (202) is arranged in the cavity (3), and the mounting plate (202) is mounted on the mounting base (1), the hinged strip one (204) and the hinged strip two (205) are hinged, the hinged strip one (204) and the hinged strip two (205) are hinged and connected with the mounting plate (202), the positioning rod (206) is fixedly connected to the hinged strip one (204), the gas cylinder (203) is hinged with the mounting plate (202), the output shaft of the gas cylinder (203) is hinged with the positioning rod (206), the hinged strip one (204) is provided with the squeezing roller (207), the positioning rod (206), the gas cylinder (203) and the squeezing roller (207) are symmetrically arranged on the hinged strip two (205) with the hinge center of the hinged strip one (204) and the hinged strip two (205) as the center, the discharging roller (209) is mounted on the other side of the mounting plate (202), the mounting plate (202) is provided with a second air slot (5), the heating assembly (211) is arranged in the cavity (3), and the heating assembly (211) is located between the feeding roller (208) and the squeezing roller (207), the heating assembly (211) is mounted on the box (201), and the control panel is mounted on the box (201).

2. A hot drawing mechanism of a plastic wire drawing machine according to claim 1, characterized in that, The support (210) is provided with a waist-shaped groove (6), the waist-shaped groove (6) is provided with a shaft sleeve (7), the feeding roller (208) is mounted on the shaft sleeve (7), one end of the shaft sleeve (7) is provided with a protrusion, and the other end of the shaft sleeve (7) is provided with a thread, and a nut is arranged on the thread in a matched mode.

3. A hot drawing mechanism of a plastic wire drawing machine according to claim 2, characterized in that, The heating assembly (211) comprises a power supply (8) and a heating pipe (9), the two ends of the heating pipe (9) are fixedly connected to the power supply (8), and the heating pipe (9) is arranged in a spiral ring shape.

4. A hot drawing mechanism of a plastic wire drawing machine according to claim 3, characterized in that, One side of the articulated strip one (204) is fixedly connected with a support rod one (10), the lower part of the support rod one (10) is provided with a telescopic rod one (11), the telescopic rod one (11) is fixedly connected on the mounting seat (1), the support rod one (10) is fixedly connected with a supporting block one (12), the articulated strip two (205) is fixedly connected with a support rod two (13), the upper part of the support rod two (13) is provided with a telescopic rod two (14), the telescopic rod two (14) is fixedly connected with a supporting block two (15), the supporting block one (12) and the supporting block two (15) are fixedly connected with the same heat-resistant pad.

5. A hot drawing mechanism of a plastic wire drawing machine according to claim 4, characterized in that, The rear side of the discharging roller (209) is provided with a mounting block (16), the mounting block (16) is provided with a mounting groove (17), and the mounting groove (17) is provided with a cleaning cotton (18).

6. A hot drawing mechanism of a plastic wire drawing machine according to claim 5, characterized in that, A plurality of ventilation openings (19) are formed in the box body (201), and a grid cover (20) is mounted on the ventilation opening (19).

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