Process device for eliminating tail shrinkage of extruded bar

Abstract

The utility model discloses a process device for eliminating tail shrinkage of an extruded bar, and relates to the technical field of bar production. The device comprises a base, a bar extruder is fixedly installed on the rear side of the upper end of the outer wall of the base, an extrusion shaft is arranged at the output end of the bar extruder, an extrusion cylinder is fixedly installed on the front side of the upper end of the outer wall of the base, an extrusion die is fixedly installed at the front end of the outer wall of the extrusion cylinder, and an extrusion shaft pad is fixedly installed at the front end of the outer wall of the extrusion shaft. A concave cavity is formed in the front end of the outer wall of the extrusion shaft pad, and a release agent spraying assembly capable of moving up and down is arranged on the outer wall of the extrusion cylinder. When the extrusion shaft drives the extrusion shaft pad to carry out extrusion forming on a blank, the concave cavity in the center of the extrusion shaft pad can be filled with materials in the extrusion process, so that enough metal can be used for supplementing shrinkage of the central part of a bar in the later stage of extrusion, a shrinkage cavity in the tail end of the bar is eliminated, waste is prevented from being produced, and the utilization rate of the materials is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bar production, in particular to a process device for eliminating tail shrinkage of extruded bar. Background Art

[0002] Extrusion is a plastic forming method that applies external force from one end to a metal ingot placed in a container (extrusion barrel) to force it to flow out of a specific die hole to obtain a product with the required cross-sectional shape and size. Rods can be produced by extrusion. Extruded rods require making billets, which are placed in an extrusion barrel and extruded to form rods. However, this rod production method still has the following disadvantages in actual use:

[0003] 1. When the extrusion process in the extrusion barrel is about to be completed, the metal available to flow out of the extrusion barrel is seriously insufficient, and it is increasingly difficult to fill the central part of the product. This will form a funnel-shaped central shrinkage hole or subcutaneous shrinkage tail at the tail end of the rod, reducing the utilization rate of the material;

[0004] 2. At present, when making rods by extrusion, it is often necessary to apply a high-temperature release agent or demoulding agent to the part where the extrusion shaft contacts the metal ingot. The purpose is to facilitate the separation of the extrusion shaft and the metal ingot after the extrusion is completed. However, at present, workers generally apply it manually. This application method is not only inefficient, but also allows workers to get too close to the high-temperature metal ingot, which is dangerous.

[0005] Therefore, it is necessary to improve the prior art to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of the utility model is to provide a process device for eliminating the shrinkage of the extruded rod. The concave cavity in the center of the extrusion shaft pad will be filled with material during the extrusion process, so that there is enough metal to supplement the shrinkage of the central part of the rod in the later stage of extrusion. This solves the problem that when the extrusion process in the extrusion cylinder is about to be completed, the metal available to flow out of the extrusion cylinder is seriously insufficient, and it is increasingly difficult to fill the central part of the product, thereby causing a central shrinkage hole or subcutaneous shrinkage.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a process device for eliminating the shrinkage of extruded rods, comprising a base, a rod extruder is fixedly installed on the rear side of the upper end of the outer wall of the base, an extrusion shaft is provided at the output end of the rod extruder, an extrusion barrel is fixedly installed on the front side of the upper end of the outer wall of the base, an extrusion die is fixedly installed on the front end of the outer wall of the extrusion barrel, an extrusion shaft pad is fixedly installed on the front end of the outer wall of the extrusion shaft, a concave cavity is opened on the front end of the outer wall of the extrusion shaft pad, and a demoulding agent spraying component that can move up and down is provided on the outer wall of the extrusion barrel.

[0009] Furthermore, the release agent spraying assembly includes a main pipeline, the rear end of the outer wall of the main pipeline is fixedly connected to pipeline one in a circumferential arrangement, the rear ends of the outer walls of all the pipelines one are fixedly connected to pipeline two, the opposite ends of the outer walls of all the pipelines two are simultaneously fixedly installed with an annular pipeline one, and the rear end of the outer wall of the annular pipeline one is fixedly installed with a nozzle one.

[0010] Furthermore, an annular pipe 2 is fixedly installed at the opposite ends of the outer wall of all the pipes 2, and nozzles 2 are fixedly installed in a circumferential arrangement at the rear end of the outer wall of the annular pipe 2.

[0011] Furthermore, a fixing seat is fixedly installed on the upper end of the outer wall of the extrusion cylinder, and a polished rod is fixedly installed symmetrically on the upper end of the outer wall of the fixing seat. A top plate is fixedly installed on the upper ends of the outer walls of the two polished rods at the same time, and a T-shaped sliding plate is slidably connected to the outer walls of the two polished rods at the same time, and the rear lower end of the outer wall of the T-shaped sliding plate is fixedly connected to the upper end of the outer wall of the main pipe.

[0012] Furthermore, a screw rod is rotatably connected to the middle of the top plate and the outer wall of the fixing seat on the opposite side, and a screw rod connector is fixedly installed in the middle of the T-shaped sliding plate, and the screw rod connector is threadedly connected to the screw rod.

[0013] Furthermore, a motor frame is fixedly mounted on the upper end of the outer wall of the top plate, a motor is fixedly mounted inside the motor frame, and an output end of the motor passes through the lower end of the outer wall of the top plate and is fixedly connected to the screw rod.

[0014] Furthermore, a connector is fixedly mounted on the upper rear end of the outer wall of the T-shaped sliding plate, and the lower end of the connector is connected to the main pipeline.

[0015] The utility model has the following beneficial effects:

[0016] 1. When the extrusion shaft in the utility model drives the extrusion shaft pad to extrude the blank, the concave cavity in the center of the extrusion shaft pad will be filled with material during the extrusion process, so that there is enough metal to supplement the shrinkage of the center part of the rod in the later stage of extrusion, thereby eliminating the shrinkage hole at the tail end of the rod, avoiding the production of waste, and improving the utilization rate of materials.

[0017] 2. When the utility model is in use, the release agent spraying assembly is driven to move up and down by starting the motor. After the annular pipe 1 is aligned with the front end of the outer wall of the extrusion shaft pad, the device can spray the release agent to the front end of the outer wall of the extrusion shaft pad through the nozzle 1, and spray the release agent into the concave cavity in the center of the extrusion shaft pad through the nozzle 2, thereby eliminating the need for workers to manually spray the release agent, thereby improving the spraying efficiency and also increasing the safety of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the rear structure of the utility model;

[0021] Figure 3 It is a cross-sectional view of the extrusion shaft pad of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the release agent spraying component of the utility model.

[0023] Figure 5 This is an enlarged view of the structure at point A of the present utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 100, base; 110, rod extruder; 120, extrusion shaft; 130, extrusion barrel; 140, extrusion die; 200, extrusion shaft pad; 210, concave cavity; 300, release agent spray assembly; 310, main pipeline; 311, connector; 320, pipeline one; 330, pipeline two; 340, annular pipeline one; 350, nozzle one; 360, annular pipeline two; 370, nozzle two; 400, fixed seat; 410, bare rod; 420, top plate; 430, T-shaped sliding plate; 500, screw rod connector; 510, screw rod; 520, motor frame; 530, motor. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1-3 As shown, the utility model is a process device for eliminating the shrinkage of the tail of an extruded bar, comprising a base 100, a bar extruder 110 is fixedly installed on the rear side of the upper end of the outer wall of the base 100, an extrusion shaft 120 is provided at the output end of the bar extruder 110, an extrusion cylinder 130 is fixedly installed on the front side of the upper end of the outer wall of the base 100, an extrusion die 140 is fixedly installed on the front end of the outer wall of the extrusion cylinder 130, an extrusion shaft pad 200 is fixedly installed on the front end of the outer wall of the extrusion shaft 120, and a concave cavity 210 is opened on the front end of the outer wall of the extrusion shaft pad 200. When the extrusion shaft 120 drives the extrusion shaft pad 200 to extrude a billet with a certain temperature, the concave cavity 210 in the center of the extrusion shaft pad 200 is filled with material during the extrusion process, so that there is enough metal to supplement the shrinkage of the center part of the bar in the later stage of extrusion, thereby eliminating the shrinkage hole at the tail end of the bar.

[0028] Among them Figure 4 As shown, the outer wall of the extrusion cylinder 130 is provided with a release agent spraying assembly 300 that can move up and down, and the release agent spraying assembly 300 includes a main pipeline 310, and the rear end of the outer wall of the main pipeline 310 is fixedly connected to a pipeline 1 320 in a circumferential arrangement, and the rear ends of the outer walls of all pipelines 1 320 are fixedly connected to pipelines 2 330, and the outer walls of all pipelines 2 330 are fixedly installed with annular pipelines 1 340 at the opposite ends at the same time, and the rear ends of the outer walls of the annular pipelines 1 340 are fixedly installed with nozzles 1 350 in a circumferential arrangement. Before extrusion, the main pipeline The demoulding agent in 310 will flow into pipe 2 330 through pipe 1 320 and enter into annular pipe 1 340, and the demoulding agent will be sprayed onto the front end of the outer wall of the extrusion shaft pad 200 through nozzle 1 350 on the annular pipe 1 340. Annular pipes 2 360 are fixedly installed at the opposite ends of the outer walls of all pipes 2 330 at the same time, and nozzles 2 370 are fixedly installed in a circular arrangement on the rear end of the outer wall of the annular pipe 2 360, and the demoulding agent is sprayed into the concave cavity 210 in the center of the extrusion shaft pad 200 through nozzle 2 370.

[0029] Among them Figure 5 As shown, a fixing seat 400 is fixedly installed on the upper end of the outer wall of the extrusion cylinder 130, and a polished rod 410 is fixedly installed on the upper end of the outer wall of the fixing seat 400 symmetrically. A top plate 420 is fixedly installed on the upper ends of the outer walls of the two polished rods 410 at the same time. The outer walls of the two polished rods 410 are slidably connected with a T-shaped sliding plate 430 at the same time. The lower end of the rear side of the outer wall of the T-shaped sliding plate 430 is fixedly connected to the upper end of the outer wall of the main pipeline 310. A screw rod 510 is rotatably connected to the middle of the opposite side of the outer wall of the top plate 420 and the fixing seat 400, and a screw rod connector 500 is fixedly installed in the middle of the T-shaped sliding plate 430. The screw connector 500 is threadedly connected to the screw 510. When the screw 510 rotates, it can drive the T-shaped sliding plate 430 to slide up and down on the outer wall of the light rod 410, thereby driving the main pipeline 310 to slide up and down, allowing the release agent spraying assembly 300 to slide up and down. A motor frame 520 is fixedly installed on the upper end of the outer wall of the top plate 420, and a motor 530 is fixedly installed inside the motor frame 520. The output end of the motor 530 passes through the lower end of the outer wall of the top plate 420 and is fixedly connected to the screw 510. When the motor 530 is started, it can drive the screw 510 to rotate.

[0030] Among them Figure 5 As shown, a connector 311 is fixedly installed on the upper rear end of the outer wall of the T-shaped sliding plate 430, and the lower end of the connector 311 is connected to the main pipeline 310. The processing personnel connect with the external pipeline through the connector 311, so as to facilitate pumping the release agent into the release agent spraying assembly 300.

[0031] A specific application of this embodiment is as follows: when in use, firstly, the heated blank is placed in the extrusion barrel 130, and then the motor 530 is started to drive the screw rod 510 to rotate, and when the screw rod 510 rotates, it can drive the T-shaped sliding plate 430 to slide up and down on the outer wall of the light rod 410, thereby driving the main pipeline 310 to slide up and down, so that the demoulding agent spraying assembly 300 can move up and down, and the annular pipeline 340 is aligned with the front end of the outer wall of the extrusion shaft pad 200, and then the demoulding agent is pumped into the connector 311 through the nozzle. One 350 sprays the release agent to the front end of the outer wall of the extrusion shaft pad 200, and the release agent is sprayed into the concave cavity 210 in the center of the extrusion shaft pad 200 through the nozzle 2 370. After the release agent spraying is completed, the release agent spraying assembly 300 is raised. When the extrusion shaft pad 200 is driven by the extrusion shaft 120 to extrude the billet with a certain temperature, the concave cavity 210 in the center of the extrusion shaft pad 200 is filled with material during the extrusion process, so that there is enough metal in the later stage of extrusion to supplement the shrinkage of the center part of the rod, thereby eliminating the shrinkage hole at the tail end of the rod.

[0032] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A process device for eliminating tail shrinkage of extruded bars, comprising a base (100), Features: A rod extruder (110) is fixedly mounted on the rear side of the upper end of the outer wall of the base (100); an extrusion shaft (120) is provided at the output end of the rod extruder (110); an extrusion barrel (130) is fixedly mounted on the front side of the upper end of the outer wall of the base (100); an extrusion die (140) is fixedly mounted on the front end of the outer wall of the extrusion barrel (130); an extrusion shaft pad (200) is fixedly mounted on the front end of the outer wall of the extrusion shaft (120); a concave cavity (210) is provided at the front end of the outer wall of the extrusion shaft pad (200); and a demoulding agent spraying assembly (300) that can move up and down is provided on the outer wall of the extrusion barrel (130).

2. A process device for eliminating tail shrinkage of extruded bars according to claim 1, It is characterized in that The release agent spraying assembly (300) comprises a main pipeline (310), the outer wall rear end of the main pipeline (310) is fixedly connected to a pipeline one (320) in a circumferential arrangement, the outer walls rear ends of all the pipelines one (320) are fixedly connected to a pipeline two (330), the outer walls of all the pipelines two (330) are simultaneously fixedly installed with an annular pipeline one (340) at the opposite ends, and the outer wall rear end of the annular pipeline one (340) is fixedly installed with a nozzle one (350) in a circumferential arrangement.

3. A process device for eliminating tail shrinkage of extruded bars according to claim 2, It is characterized in that The opposite ends of the outer walls of all the second pipes (330) are simultaneously fixedly installed with annular pipes (360), and the rear ends of the outer walls of the second annular pipes (360) are fixedly installed with nozzles (370) arranged in a circumferential manner.

4. A process device for eliminating tail shrinkage of extruded bars according to claim 2, It is characterized in that A fixing seat (400) is fixedly installed on the upper end of the outer wall of the extrusion cylinder (130), and a light rod (410) is fixedly installed on the upper end of the outer wall of the fixing seat (400) symmetrically. A top plate (420) is fixedly installed on the upper ends of the outer walls of the two light rods (410) at the same time. The outer walls of the two light rods (410) are slidably connected with a T-shaped sliding plate (430) at the same time, and the rear lower end of the outer wall of the T-shaped sliding plate (430) is fixedly connected to the upper end of the outer wall of the main pipe (310).

5. A process device for eliminating tail shrinkage of extruded bars according to claim 4, It is characterized in that A screw rod (510) is rotatably connected in the middle of the side opposite to the outer wall of the top plate (420) and the fixing seat (400), and a screw rod connector (500) is fixedly installed in the middle of the T-shaped sliding plate (430), and the screw rod connector (500) is threadedly connected to the screw rod (510).

6. A process device for eliminating tail shrinkage of extruded bars according to claim 5, It is characterized in that A motor frame (520) is fixedly mounted on the upper end of the outer wall of the top plate (420), a motor (530) is fixedly mounted inside the motor frame (520), and an output end of the motor (530) passes through the lower end of the outer wall of the top plate (420) and is fixedly connected to the screw rod (510).

7. A process device for eliminating tail shrinkage of extruded bars according to claim 4, It is characterized in that A connector (311) is fixedly mounted on the upper rear end of the outer wall of the T-shaped sliding plate (430), and the lower end of the connector (311) is in communication with the main pipeline (310).

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