Cross-core type extruding machine

Abstract

The utility model discloses a cross-core extruder, and belongs to the technical field of extruders. Comprising a base and a hollow oil cylinder fixed on the base, and the carriage assembly is fixed on the base; the jacking assembly is installed on a sliding rod in the sliding frame assembly in a sliding mode and connected with the hollow oil cylinder. The extrusion die is fixed at the left end of the sliding rod; according to the jacking assembly, a sliding seat is installed on a sliding rod in a sliding mode; a limiting groove is formed in the side, close to the extrusion die, of the sliding base. The jacking block is arranged in the limiting groove; the two sides of the jacking block are each provided with a flange, and arc-shaped guide grooves are formed in the lower side faces of the flanges; the jacking head is fixed to the side, close to the extrusion die, of the jacking block. The pressing block is matched with the sliding seat through the flange, and the extrusion die is positioned through the pressing plate, so that the extrusion die and the pressing block which are matched with each other are quickly replaced, and the adaptability of equipment to different types of workpieces is improved; and the centralizing sleeve is favorable for positioning the extrusion sleeve during processing, so that the processing fluency and the forming quality of a workpiece are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of extruders, specifically to a kind of through core extruder. BACKGROUND

[0002] Through core extruder is a kind of equipment widely used in the field of metal processing, especially in the operation of connecting steel strand and extrusion sleeve. Its core principle is to use extrusion forming technology, through specific mold and pressure device, extrusion sleeve is tightly fixed on steel strand, so as to realize the efficient and stable connection between the two. The traditional extruder has poor adaptability, and the top pressure assembly is inconvenient to disassemble, which cannot well adapt to the processing needs of different specifications and types of steel strand and extrusion sleeve. SUMMARY

[0003] The utility model aims at providing a kind of through core extruder, to improve the convenience of extruder die replacement.

[0004] The utility model adopts the following technical scheme: a kind of through core extruder, including base and hollow oil cylinder fixed on base, further including:

[0005] Slide assembly, fixed on the base;The slide assembly includes four mutually parallel slide rods distributed in a rectangular shape, and the hollow oil cylinder is fixed at the right end of the slide rod and parallel to the slide rod;

[0006] Top pressure assembly, slidingly installed on the slide rod and fixedly connected with the piston rod of hollow oil cylinder;

[0007] Extrusion die, fixed at the left end of the slide rod, for cooperating with the top pressure assembly;

[0008] Among them, the top pressure assembly includes:

[0009] Slide seat, slidingly installed on the slide rod;The side of the slide seat close to the extrusion die is provided with a limiting groove;

[0010] Top pressure block, arranged in the limiting groove;The two sides of the top pressure block are respectively provided with a flange, and the lower side of the flange is provided with an arc-shaped guide groove;Two slide rods are slidingly installed on the two slide rods above the guide groove through the guide groove, and the upper side of the flange and the top pressure block is attached to the upper side inner wall of the limiting groove.

[0011] Top pressure head, fixed on the side of the top pressure block close to the extrusion die, for cooperating with the extrusion die.

[0012] Further, the four slide rods are fixed on the right support at the end close to the hollow oil cylinder, and the right support is fixed on the base;The right support is provided with a through hole, and the hollow oil cylinder is fixed in the through hole of the right support.

[0013] Four said slide rods are fixed on the left support near one end of the extrusion die, and the left support is fixed on the base; a through hole is formed in the left support, and the extrusion die is fixed in the through hole of the left support.

[0014] A pressing plate with a through hole is fixed on the right side of the left support, and the pressing plate is used for positioning the extrusion die in the through hole of the left support.

[0015] A through hole is formed in the slide block opposite to the piston rod of the hollow oil cylinder, and a positioning groove is formed in the bottom of the limiting groove;

[0016] A positioning protrusion is formed in the side of the top pressing block close to the slide block and matched with the positioning groove.

[0017] A pair of threaded holes are formed in the slide block above the positioning groove, a limiting bolt is installed in the threaded hole, and the cap body of the limiting bolt is pressed on the left side of the slide block.

[0018] The top pressing head comprises a cylinder body, and a flange plate is fixed on one end of the cylinder body; the flange plate is fixed on the side of the top pressing block close to the extrusion die.

[0019] A righting sleeve is slidably sleeved on the left end of the cylinder body, and a spring is sleeved on the cylinder body; the two ends of the spring are respectively abutted on the flange plate and the righting sleeve;

[0020] A plurality of uniformly distributed through grooves are formed in the righting sleeve and communicated to the left end of the righting sleeve; a plurality of uniformly distributed guide blocks are fixed on the left end of the cylinder body through screws and slidably matched with the through grooves on the righting sleeve.

[0021] The beneficial effects of the utility model lie in:

[0022] The slide frame assembly adopts four rectangularly distributed slide rods, the top pressing assembly is slidably installed on the slide rods through the linear bearing, the stability of the structure and the stability of the sliding are ensured; wherein, the top pressing block is matched with the limiting groove and the positioning groove of the slide block through the flange and the positioning protrusion, the rapid positioning is realized, and the dismounting process is simplified; the extrusion die is fixed in the through hole of the left support through the pressing plate, the rapid replacement of the matched extrusion die and the top pressing block is realized, and the adaptability of the equipment to different types of workpieces is increased.

[0023] The righting sleeve is provided at the end of the top pressing head, the spring is arranged at one end of the righting sleeve, the stability of the righting sleeve in the machining process and the continuous righting effect on the extrusion sleeve are ensured, the extrusion sleeve is positioned during machining, the smoothness of machining and the forming quality of the workpiece are improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0025] Figure 1 It is a perspective view of the through-core extruder of the present application.

[0026] Figure 2 It is a top view of the through-core extruder of the present application.

[0027] Figure 3 It is Figure 2 A-A sectional view (the extrusion sleeve and the steel strand are shown in the drawing).

[0028] Figure 4 It is Figure 3 An enlarged view of B in the drawing

[0029] Figure 5 It is an assembly schematic view of the top pressing assembly in the present application.

[0030] Figure 6 It is a structural schematic view of the righting sleeve and the top pressing head in the present application.

[0031] Legend of the drawing: 1, base;

[0032] 2, hollow oil cylinder;

[0033] 3, sliding carriage assembly; 31, sliding rod; 32, right support; 33, left support; 331, pressing plate;

[0034] 4, top pressing assembly;

[0035] 41, sliding seat; 411, limiting groove; 412, positioning groove;

[0036] 42, top pressing block; 421, flange; 422, guide groove; 423, positioning protrusion;

[0037] 43, top pressing head; 431, cylinder; 432, flange plate; 433, guide block;

[0038] 44, righting sleeve; 441, through groove;

[0039] 45, spring;

[0040] 5, extrusion die; 6, extrusion sleeve; 7, steel strand. DETAILED DESCRIPTION

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Example 1:

[0043] like Figures 1 to 4 As shown, this utility model provides a through-hole extrusion press, which mainly includes a base 1 and a hollow oil cylinder 2, a slide assembly 3, a top pressure assembly 4 and an extrusion die 5 fixed on the base.

[0044] The carriage assembly 3 includes four rectangular, parallel slide rods 31. The left ends of the four slide rods 31 are fixed to a left support 33, which is bolted to the base 1. The extrusion die 5 is fixed to the left support 33 for cooperation with the pressing assembly 4. The right ends of the four slide rods 31 are fixed to a right support 32, which is bolted to the base 1. A through hole is provided on the right support 32, and a hollow hydraulic cylinder 2 is embedded and fixed in the through hole of the right support 32. The hollow hydraulic cylinder 2 is parallel to the four slide rods 31 and located at the center of the four slide rods 31.

[0045] like Figures 1 to 5 As shown, the top pressure assembly 4 includes a slide 41, a top pressure block 42, and a top pressure head 43;

[0046] The slide block 41 has sliding joints at its four corners and is slidably mounted on four slide rods 31 via linear bearings. The right side of the slide block 41 is fixedly connected to the hollow piston rod of the hollow cylinder 2 via bolts. A limiting groove 411 is formed on the left side of the slide block 41, through which the two upper slide rods 31 pass. A through hole penetrating the slide block 41 is formed in the center of the limiting groove 411, which is opposite to the hollow piston rod of the hollow cylinder 2. A positioning groove 412 is also formed at the bottom of the limiting groove 411 for engaging with the top pressure block 42.

[0047] Two sides of the top pressing block 42 are respectively provided with a flange 421, and an arc-shaped guide groove 422 is formed in the lower side of the flange 421, and an arc-shaped copper gasket is fixed in the guide groove 422. The flanges 421 on the two sides are correspondingly slidably installed on the two slide rods 31 above. The right side of the top pressing block 42 is provided with a positioning protrusion 423 matched with the positioning groove 412, and a through hole is formed in the top pressing block 42 and penetrates the top pressing block 42, and the through hole of the top pressing block 42 is opposite to the through hole of the sliding seat 41. When the top pressing block 42 is pushed into the limiting groove 411 of the sliding seat 41, the upper side of the flange 421 and the upper side of the top pressing block 42 are attached to the inner wall of the upper side of the limiting groove 411, and the positioning protrusion 423 is matched and inserted into the positioning groove 412, so that the top pressing block 42 is quickly positioned. A pair of threaded holes are formed in the sliding seat 41 above the positioning groove 412, and a limiting bolt 413 is installed in the threaded hole, and the cap body of the limiting bolt 413 is pressed on the left side of the sliding seat 41, so as to prevent the top pressing block 42 from being separated from the limiting groove 411 when the sliding seat 41 retreats (moves to the right); after the limiting bolt 413 is disassembled, the top pressing block 42 can be quickly replaced.

[0048] The cylindrical top pressing head 43 is fixed to the left side of the top pressing block 42, and the top pressing head 43 is opposite to the through hole of the top pressing block 42. In work, the hollow oil cylinder 2 drives the sliding seat 41, the top pressing block 42 and the top pressing head 43 to move towards the extrusion die 5 on the left support 33, and the top pressing head 43 cooperates with the extrusion die 5 to realize the extrusion forming operation of the steel strand 7 and the extrusion sleeve 6.

[0049] Embodiment two:

[0050] As shown in Figure 1 and Figure 3 , a through hole is formed in the left support 33, and the extrusion die 5 is installed in the through hole of the left support 33. The left end of the through hole of the left support 33 has a step abutting against the extrusion die 5. The right side of the left support 33 is fixed with a pressing plate 331 through a screw, and the through hole in the center of the pressing plate 331 is opposite to the extrusion die 5, and the pressing plate 331 is used for positioning the extrusion die 5 in the through hole of the left support 33. By disassembling the pressing plate 331, the extrusion die 5 can be quickly replaced.

[0051] Embodiment three:

[0052] As shown in Figures 1 to 6 , the end of the top pressing head 43 is provided with a centralizing sleeve 44, which is convenient for positioning the extrusion sleeve 6 during processing, and improves the processing fluency and the workpiece forming quality. The top pressing head 43 comprises a cylinder body 431, and a flange plate 432 is fixed to the right end of the cylinder body 431. The left side of the top pressing block 42 is provided with a circular recess, and the flange plate 432 is embedded in the circular recess and fixedly connected with the top pressing block 42 through a bolt.

[0053] The righting sleeve 44 is sleeved on the left end of the cylinder body 431; the spring 45 is sleeved on the cylinder body 431, and the two ends of the spring 45 are respectively abutted against the flange plate 432 and the righting sleeve 44, and the spring 45 is used for providing the righting sleeve 44 with a left moving elastic force. A plurality of uniformly distributed radial through grooves 441 are formed in the righting sleeve 44 and communicated to the left end of the righting sleeve 44. A plurality of uniformly distributed guide blocks 433 are fixed on the circumferential surface of the left end of the cylinder body 431 through screws, and the guide blocks 433 are one-to-one correspondingly sleeved in the through grooves 441 on the righting sleeve 44. Under the cooperation of the guide blocks 433 and the through grooves 441, the righting sleeve 44 can be prevented from being separated from the cylinder body 431, and the righting sleeve 44 is guided and prevented from rotating.

[0054] Working process:

[0055] The top pressing assembly 4 is located at the right position on the sliding frame assembly, which is the initial position;

[0056] The steel strand 7 is passed through the cylinder bottom of the hollow oil cylinder 2, the hollow oil cylinder 2, the sliding seat 41, the top pressing block 42, the top pressing head 43 and the righting sleeve 44 in sequence; the extrusion sleeve 6 is sleeved on the steel strand 7 and placed in the righting sleeve 44; the steel strand 7 is passed through the extrusion die 5;

[0057] The hollow oil cylinder 2 is started to extend, and the top pressing assembly 4 is driven to move left along the sliding frame assembly 3; the extrusion sleeve 6 enters the through hole of the left support 33 first, and is guided and positioned; the top pressing assembly 4 continues to move, the righting sleeve 44 is compressed to the right, the top pressing head 43 starts to slowly press the extrusion sleeve 6 into the extrusion die 5, the extrusion sleeve 6 starts to be gradually extruded and deformed, until the extrusion sleeve 6 is passed out of the extrusion die 5; under the extrusion action of the extrusion die 5, the extrusion sleeve 6 is fixed with the steel strand 7 as a whole, and the extrusion forming operation is completed;

[0058] Then the hollow oil cylinder 2 is retracted, and the top pressing assembly 4 is reset to the initial position.

[0059] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the utility model claims and equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A through-penetration extruder comprising a base (1) and a hollow oil cylinder (2) fixed to the base, characterized in that, Also include: The slide carriage assembly (3) is fixed on the base (1); the slide carriage assembly (3) includes four mutually parallel slide rods (31) distributed in a rectangular shape, and the hollow oil cylinder (2) is fixed at the right end of the slide rod (31) and parallel to the slide rod (31); The top pressure assembly (4) is slidably installed on the slide rod (31) and fixedly connected with the piston rod of the hollow oil cylinder (2); The extrusion die (5) is fixed at the left end of the slide rod (31) and is used in cooperation with the top pressure assembly (4); Wherein, the top pressure assembly (4) comprises: The slide seat (41) is slidably installed on the slide rod (31); the side of the slide seat (41) close to the extrusion die (5) is provided with a limiting groove (411); The top pressure block (42) is arranged in the limiting groove (411); the two sides of the top pressure block (42) are respectively provided with a flange (421), and the lower side of the flange (421) is provided with an arc-shaped guide groove (422); the two flanges (421) are correspondingly slidably installed on the two slide rods (31) above through the guide grooves (422), and the upper side of the flange (421) and the top pressure block (42) is attached to the upper side inner wall of the limiting groove (411); The top pressure head (43) is fixed at the side of the top pressure block (42) close to the extrusion die (5) and is used in cooperation with the extrusion die (5).

2. A crosshead type extruding machine according to claim 1, wherein: Four slide rods (31) are fixed at the right end close to the hollow oil cylinder (2) on the right support (32), and the right support (32) is fixed on the base (1); the right support (32) is provided with a through hole, and the hollow oil cylinder (2) is fixed in the through hole of the right support (32).

3. A cross-pinner according to claim 1, characterized in that: Four slide rods (31) are fixed at the left end close to the extrusion die (5) on the left support (33), and the left support (33) is fixed on the base (1); the left support (33) is provided with a through hole, and the extrusion die (5) is fixed in the through hole of the left support (33).

4. A crosshead type extruding machine according to claim 3, wherein: The right side of the left support (33) is fixed with a pressing plate (331) with a through hole, and the pressing plate (331) is used for positioning the extrusion die (5) in the through hole of the left support (33).

5. A cross-pinner according to claim 1, characterized in that: The slide seat (41) is provided with a through hole opposite to the piston rod of the hollow oil cylinder (2), and the bottom of the limiting groove (411) is provided with a positioning groove (412); The side of the top pressure block (42) close to the slide seat (41) is provided with a positioning protrusion (423) matched with the positioning groove (412).

6. A crosshead type extruding machine according to claim 5, wherein: A pair of threaded holes are formed in the slide seat (41) above the positioning groove (412), a limiting bolt (413) is installed in the threaded hole, and the cap body of the limiting bolt (413) is pressed against the left side of the slide seat (41).

7. A cross-pinner according to claim 1, characterized in that: The top pressure head (43) comprises a cylinder body (431), and a flange plate (432) is fixed at one end of the cylinder body (431); the flange plate (432) is fixed at the side of the top pressure block (42) close to the extrusion die (5).

8. A crosshead type extruding machine according to claim 7, wherein: A centralizing sleeve (44) is slidably sleeved at the left end of the cylinder body (431), and a spring (45) is sleeved on the cylinder body (431); the two ends of the spring (45) are respectively abutted against the flange plate (432) and the centralizing sleeve (44); A plurality of uniformly distributed through grooves (441) are formed on the righting sleeve (44), and the through grooves (441) are communicated to the left end of the righting sleeve (44); a plurality of uniformly distributed guide blocks (433) are fixed on the left end circumferential surface of the cylinder (431) through screws, and the guide blocks (433) are one-to-one slidingly fitted in the through grooves (441) on the righting sleeve (44).

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