Feeding device for polyvinyl chloride cable material production

Abstract

The utility model provides a feeding device for polyvinyl chloride cable material production, which relates to the feeding device field, and comprises a material conveying cylinder and a blanking pipe, the upper end of the material conveying cylinder is provided with a feed hopper, a conveying screw rod is arranged in the material conveying cylinder, the outer wall of a rotating shaft of the conveying screw rod is connected with a material turning assembly, the cylinder wall of the lower side of the material conveying cylinder is provided with a filter screen, and the filter screen is connected with the blanking pipe. The lower end of the filter screen is connected with a flow guide hopper, the lower side of the flow guide hopper is connected with a dust and impurity removal assembly, the discharging pipe is vertically connected to the tail end of the conveying barrel, a magnetic frame is arranged in the discharging pipe, and a cooling assembly is arranged on the outer side of the discharging pipe. The extruding and feeding device solves the problems that an existing extruding and feeding device for the polyvinyl chloride insulating material for the cable is inconvenient to clean impurities, does not have a dust removal effect and still has a poor heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a feeding device for producing polyvinyl chloride cable materials. Background Art

[0002] The insulation layer of the cable is generally made of modified polyvinyl chloride material, which is generally made by mixing and extruding polyvinyl chloride resin, non-polar filler, high-density modifier and other raw materials through a screw extruder.

[0003] After searching, the prior art (publication number: CN207441353U) describes "a polyvinyl chloride insulation extrusion feeding device for cables, comprising a feed hopper, a sleeve, a motor, a discharge pipe, and a spiral feeding pipe disposed within the sleeve. The bottom of the feed hopper passes through the sleeve and is connected to one end of the spiral feeding pipe, the other end of which is connected to the discharge pipe. The spiral feeding pipe is provided with a screw connected to the motor. The spiral feeding pipe is provided with a plurality of filter holes evenly spaced apart, and the sleeve is also provided with a magnetic mechanism. In the present utility model, the spiral feeding pipe is provided with filter holes, allowing fine debris to pass through the filter holes during spiral conveying and fall to the bottom of the sleeve. The magnetic mechanism within the sleeve can enhance the filtration of metal particles in the raw material, thereby ensuring the quality of the finished cable."

[0004] Although the existing polyvinyl chloride insulation material extrusion feeding device for cables can achieve the effect of removing impurities, it still has some shortcomings: after the existing polyvinyl chloride insulation material extrusion feeding device for cables removes impurities, it is not convenient to clean the impurities at the arc-shaped bottom of the sleeve by opening and closing the door. At the same time, it can only remove impurities but not dust, so a large amount of dust will also affect the product quality. Secondly, the heat sink involved is radially connected to the outer wall of the feed pipe, resulting in a small contact area, and will also be heated for a long time, resulting in poor heat dissipation effect. Utility Model Content

[0005] In order to overcome the defects of the existing technology, a feeding device for the production of polyvinyl chloride cable materials is provided to solve the problems that the existing polyvinyl chloride insulation material extrusion feeding device for cables is not convenient for cleaning impurities, has no dust removal effect, and still has poor heat dissipation effect.

[0006] To achieve the above-mentioned purpose, a feeding device for the production of polyvinyl chloride cable materials is provided, comprising: a feeding barrel and a discharge pipe, wherein a feed hopper is provided at the upper end of the feeding barrel, a conveying screw is provided inside the feeding barrel, and a turning assembly is connected to the outer wall of the rotating shaft of the conveying screw, a filter is provided on the lower wall of the feeding barrel, a guide hopper is connected to the lower end of the filter, and a dust and impurity removal assembly is connected to the lower side of the guide hopper, the discharge pipe is vertically connected to the end of the feeding barrel, a magnetic frame is provided inside the discharge pipe, and a cooling assembly is provided on the outside of the discharge pipe.

[0007] Furthermore, the turning assembly includes a connecting rod connected to the rotating shaft, and the outer end of the connecting rod is connected to a center plate, and arc plates are symmetrically connected to both sides of the center plate.

[0008] Furthermore, the filter screen is arranged along the arc-shaped bottom of the feeding cylinder, and the perimeter of the cross section of the filter screen is half of the perimeter of the cross section of the feeding cylinder.

[0009] Furthermore, the dust and impurity removal assembly includes a box body, and a suction pump is connected to the outside of the box body, and a supporting block is provided on the inner wall of the box body.

[0010] Furthermore, a collection box is provided inside the box body, and the upper end of the collection box is open, and the bottom of the collection box is provided with an air filter plate, and the collection box is placed on the upper side of the supporting block.

[0011] Furthermore, the cooling assembly includes multiple groups of cooling cylinders welded to the outer wall of the feed pipe, and adjacent cooling cylinders are connected by upper connecting pipes and lower connecting pipes, and the two cooling cylinders at the head and tail ends are respectively connected to the water outlet pipe and the water inlet pipe.

[0012] Furthermore, the cooling assembly also includes a water tank, and a submersible pump is provided at the inner bottom of the water tank, and the outer end of the water inlet pipe is inserted into the water tank and connected to the water outlet of the submersible pump, while the outer end of the water outlet pipe is connected to the top of the water tank.

[0013] The beneficial effects of the present invention are:

[0014] 1. When in use, the cable material enters the feeding barrel from the feeding hopper and is then conveyed to the lower material pipe through the feeding screw. During the process, the suction pump included in the dust removal and impurity removal component is started to suck the air in the box, thereby achieving an internal negative pressure state. At the same time, the connecting rod, center plate and curved plate included in the turning component allow the cable material to pass through the filter and diversion bucket into the collection box during transportation, and at the same time, the dust in the cable material is sucked into the collection box, thereby achieving the effect of dust removal and impurity removal. The collection box can be easily taken out for cleaning by opening the door panel provided on the outside of the box.

[0015] 2. When the cable material passes through the discharge pipe, the metal impurities inside are adsorbed by the magnetic frame, and then the cooling water is injected into the cooling cylinder through the water tank, submersible pump and water inlet pipe included in the cooling assembly. Then, the cooling water rotates and flows in multiple groups of cooling cylinders through the upper connecting pipe, the lower connecting pipe and the water outlet pipe, and then returns to the water tank for recycling, thereby wrapping the outer wall of the discharge cylinder for circulating cooling, thereby enhancing the cooling effect and preventing the cable material from becoming soft due to heat and causing discharge blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the dust and impurity removal component of an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of a partial top view of the cooling assembly according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the turning component of an embodiment of the utility model.

[0020] In the figure: 1. Feeding barrel; 11. Feed hopper; 12. Turning assembly; 121. Connecting rod; 122. Center plate; 123. Arc plate; 13. Conveying screw; 14. Filter; 15. Diversion bucket; 2. Feeding pipe; 21. Magnetic frame; 3. Cooling assembly; 31. Water tank; 32. Cooling barrel; 33. Upper connecting pipe; 34. Lower connecting pipe; 35. Water outlet pipe; 36. Water inlet pipe; 4. Dust and debris removal assembly; 41. Suction pump; 42. Box body; 43. Collection box; 44. Air filter plate; 45. Support block. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Reference Figures 1 to 4 As shown, the utility model provides a feeding device for the production of polyvinyl chloride cable materials, comprising: a feeding cylinder 1 and a discharge pipe 2, a feeding hopper 11 is provided at the upper end of the feeding cylinder 1, and a conveying screw 13 is provided inside the feeding cylinder 1, and the outer wall of the rotating shaft of the conveying screw 13 is connected to a turning assembly 12, a filter screen 14 is provided on the lower wall of the feeding cylinder 1, and a guide bucket 15 is connected to the lower end of the filter screen 14, and a dust and impurity removal assembly 4 is connected to the lower side of the guide bucket 15, the discharge pipe 2 is vertically connected to the end of the feeding cylinder 1, and a magnetic frame 21 is provided inside the discharge pipe 2, and a cooling assembly 3 is provided on the outside of the discharge pipe 2.

[0023] In this embodiment, the feeding cylinder 1, the feeding pipe 2, the cooling assembly 3 and the dust and impurity removal assembly 4 constitute the main structure of the feeding device for the production of polyvinyl chloride cable materials involved in this application.

[0024] The outer end of the conveying screw 13 is connected to a motor, and the conveying screw 13 includes a central rotating shaft and spiral blades welded on the rotating shaft.

[0025] Among them, the lower end of the discharge pipe 2 is connected to a twin-screw extruder equipment.

[0026] like Figure 1 and Figure 4 In the figure, the turning assembly 12 includes a connecting rod 121 connected to the rotating shaft, and the outer end of the connecting rod 121 is connected to a center plate 122, and the two sides of the center plate 122 are symmetrically connected to arc plates 123, and the filter screen 14 is arranged along the arc bottom of the feeding barrel 1, and the cross-sectional circumference of the filter screen 14 is half of the cross-sectional circumference of the feeding barrel 1.

[0027] Specifically, the outer arc surface of the arc plate 123 is in sliding contact with the inner arc wall of the feeding cylinder 1, so that the cable material can be turned over during transportation, thereby facilitating the filtering out of impurities through the filter screen 14.

[0028] like Figure 1 and Figure 2 In the figure, the dust and impurity removal component 4 includes a box body 42, and a suction pump 41 is connected to the outside of the box body 42. At the same time, a supporting block 45 is provided on the inner wall of the box body 42, and a collecting box 43 is provided on the inside of the box body 42. The upper end of the collecting box 43 is open, and the bottom of the collecting box 43 is set as an air filter plate 44. At the same time, the collecting box 43 is placed on the upper side of the supporting block 45.

[0029] Specifically, the suction pipe port of the suction pump 41 is located on the lower side of the collection box 43, that is, the lower side of the air filter plate 44, and the air filter plate 44 is made of a hard air filter element material, connected to the collection box 43 as an integral structure, and then through the support block 45 to facilitate the removal and placement of the collection box 43.

[0030] like Figure 1 and Figure 3 In the figure, the cooling assembly 3 includes multiple groups of cooling cylinders 32 welded to the outer wall of the discharge pipe 2, and adjacent cooling cylinders 32 are connected by upper connecting pipes 33 and lower connecting pipes 34, and the two cooling cylinders 32 at the head and tail ends are respectively connected to the water outlet pipe 35 and the water inlet pipe 36. The cooling assembly 3 also includes a water tank 31, and a submersible pump is provided at the inner bottom of the water tank 31, and the outer end of the water inlet pipe 36 is inserted into the water tank 31 and connected to the water outlet end of the submersible pump, and the outer end of the water outlet pipe 35 is connected to the top of the water tank 31.

[0031] Specifically, multiple groups of cooling tubes 32 are connected in series in sequence through the upper connecting pipe 33 and the lower connecting pipe 34, so that the cooling water can circulate in a circular manner around the discharge pipe 2. When the cooling water enters the water tank 31, it is cooled by natural cooling outside, thereby realizing circulating heat dissipation for the discharge pipe 2.

[0032] During use, the cable material enters the feed barrel from the feed hopper and is then transported to the lower feed pipe through the feed screw. During the process, the suction pump included in the dust removal and impurity removal component is started to suck the air in the box, thereby achieving an internal negative pressure state. At the same time, the cable material passes through the filter and the guide bucket during transportation through the connecting rod, center plate and curved plate included in the turning component, and enters the collection box. At the same time, the dust in the cable material is sucked into the collection box, thereby achieving the effect of dust removal and impurity removal, and the collection box can be easily taken out and cleaned by opening the door panel provided on the outside of the box; when the cable material passes through the discharge pipe, the metal impurities inside are adsorbed by the magnetic frame, and then the cooling water is injected into the cooling barrel through the water tank, submersible pump and water inlet pipe included in the cooling component, and then the cooling water is rotated and flows in multiple groups of cooling barrels through the upper connecting pipe, the lower connecting pipe and the outlet pipe, and then returns to the water tank for recycling, thereby wrapping the outer wall of the discharge barrel for circulating cooling, thereby enhancing the cooling effect and preventing the cable material from softening due to heat and causing discharge blockage.

[0033] The feeding device for the production of polyvinyl chloride cable materials of the utility model can effectively solve the problems that the existing polyvinyl chloride insulation material extrusion feeding device for cables is inconvenient to clean impurities, has no dust removal effect, and still has poor heat dissipation effect. It realizes the addition of the functions of facilitating the cleaning of impurities and facilitating dust removal on the basis of the existing feeding device technology for the production of polyvinyl chloride cable materials, and at the same time improves the heat dissipation and anti-softening effect of the cable material.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for producing polyvinyl chloride cable material, comprising: The feeding barrel (1) and the discharge pipe (2) are characterized in that: a feeding hopper (11) is provided at the upper end of the feeding barrel (1), a conveying screw (13) is provided inside the feeding barrel (1), and the outer wall of the rotating shaft of the conveying screw (13) is connected to a turning assembly (12), a filter screen (14) is provided on the lower wall of the feeding barrel (1), and a guide hopper (15) is connected to the lower end of the filter screen (14), and a dust removal and impurity removal assembly (4) is connected to the lower side of the guide hopper (15), the discharge pipe (2) is vertically connected to the end of the feeding barrel (1), a magnetic frame (21) is provided inside the discharge pipe (2), and a cooling assembly (3) is provided on the outer side of the discharge pipe (2).

2. A feeding device for producing polyvinyl chloride cable materials according to claim 1, characterized in that: The turning assembly (12) comprises a connecting rod (121) connected to a rotating shaft, wherein the outer end of the connecting rod (121) is connected to a center plate (122), and arc-shaped plates (123) are symmetrically connected to both sides of the center plate (122).

3. A feeding device for producing polyvinyl chloride cable materials according to claim 1, characterized in that: The filter screen (14) is arranged along the arc-shaped bottom of the delivery barrel (1), and the perimeter of the cross section of the filter screen (14) is half the perimeter of the cross section of the delivery barrel (1).

4. A feeding device for producing polyvinyl chloride cable materials according to claim 1, characterized in that: The dust and impurity removal assembly (4) comprises a box body (42), and the outer side of the box body (42) is connected to a suction pump (41), while the inner wall of the box body (42) is provided with a supporting block (45).

5. A feeding device for producing polyvinyl chloride cable materials according to claim 4, characterized in that: A collecting box (43) is provided inside the box body (42), and the upper end of the collecting box (43) is open, and the bottom of the collecting box (43) is provided with an air filter plate (44), and the collecting box (43) is placed on the upper side of the supporting block (45).

6. A feeding device for producing polyvinyl chloride cable materials according to claim 1, characterized in that: The cooling assembly (3) includes multiple groups of cooling cylinders (32) welded to the outer wall of the feed pipe (2), and adjacent cooling cylinders (32) are connected by upper connecting pipes (33) and lower connecting pipes (34), and the two cooling cylinders (32) at the head and tail ends are respectively connected to the water outlet pipe (35) and the water inlet pipe (36).

7. A feeding device for producing polyvinyl chloride cable materials according to claim 1, characterized in that: The cooling assembly (3) further comprises a water tank (31), and a submersible pump is provided at the inner bottom of the water tank (31), and the outer end of the water inlet pipe (36) is inserted into the water tank (31) and connected to the water outlet of the submersible pump, while the outer end of the water outlet pipe (35) is connected to the top of the water tank (31).

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