阅读说明：本技术 一种三线拉拔机 (Three-wire drawing machine ) 是由 袁芳 于 2021-02-18 设计创作，主要内容包括：本发明涉及一种三线拉拔机,它包括受料台(1),所述受料台(1)上设置有送料辊道(3),所述受料台(1)一侧设置有送料布料机构(4),所述送料布料机构(4)用于将扁平状工件输送至送料辊道(3)位置处,所述受料台(1)上还设置有翻转装置(5)和对中装置(6),所述翻转装置(5)用于将送料布料机构(4)上处于翻倒状态的扁平状工件翻转至接近竖直状态,所述对中装置(6)用于将翻转至接近竖直状态的扁平状工件进行对中。本发明一种三线拉拔机,其通过翻转装置和对中装置将倾斜翻倒于托料块上的扁平工件扶正对中,从而使工件能够对准拉拔模具顺利进行拉拔作业。(The invention relates to a three-wire drawing machine which comprises a material receiving platform (1), wherein a feeding roller way (3) is arranged on the material receiving platform (1), a feeding and distributing mechanism (4) is arranged on one side of the material receiving platform (1), the feeding and distributing mechanism (4) is used for conveying a flat workpiece to the position of the feeding roller way (3), a turning device (5) and a centering device (6) are further arranged on the material receiving platform (1), the turning device (5) is used for turning the flat workpiece in the turning state on the feeding and distributing mechanism (4) to be close to the vertical state, and the centering device (6) is used for centering the flat workpiece turned to be close to the vertical state. The invention relates to a three-wire drawing machine, which is used for righting and centering a flat workpiece which is obliquely overturned on a material supporting block through an overturning device and a centering device, so that the workpiece can be aligned with a drawing die to smoothly draw.)

1. A three-wire drawing machine is characterized in that: the automatic feeding and distributing device comprises a feeding table (1), wherein a feeding roller way (3) is arranged on the feeding table (1), a feeding and distributing mechanism (4) is arranged on one side of the feeding table (1), the feeding and distributing mechanism (4) is used for conveying flat workpieces to the position of the feeding roller way (3), a turnover device (5) and a centering device (6) are further arranged on the feeding table (1), the turnover device (5) is used for overturning the flat workpieces in an overturning state on the feeding and distributing mechanism (4) to be close to a vertical state, and the centering device (6) is used for centering the flat workpieces overturned to be close to the vertical state.

2. A three-wire drawing machine according to claim 1, characterized in that: the rear section of the receiving table (1) is provided with a driven roller assembly (7), a pinch roller assembly (8) is arranged above the driven roller assembly (7), and the driven roller assembly (7) and the pinch roller assembly (8) are matched with each other to send the centered flat workpiece into a subsequent drawing die for drawing operation.

3. A three-wire drawing machine according to claim 1, characterized in that: turning device (5) are including mounting panel (51), articulated on mounting panel (51) are provided with and connect material arm (52), connect material arm (52) top to be provided with and connect silo (53), connect material arm (52) lower part position department along transversely being provided with connecting rod (54), it articulates mutually with connecting rod (54) to connect material arm (52) lower part.

4. A three-wire drawing machine according to claim 3, characterized in that: the three feeding roller ways (3) are hinged to the mounting plate (51) from left to right, three material receiving arms (52) are hinged to the mounting plate (51), and the positions of the three material receiving arms (52) correspond to the positions of the three feeding roller ways (3) respectively.

5. A three-wire drawing machine according to claim 3, characterized in that: the mounting plate (51) one side is articulated to be provided with first cylinder (55), first cylinder (55) piston rod end is articulated mutually with connecting rod (54) one end.

6. A three-wire drawing machine according to claim 3, characterized in that: connect silo (53) front side or rear side to be provided with bilateral symmetry and be provided with two adjusting plate (58), control two adjusting plate (58) and be the V type and arrange, control the contained angle between two adjusting plate (58) and connect silo (53) left and right sides wall contained angle unanimous.

7. A three-wire drawing machine according to claim 1, characterized in that: centering device (6) include support (61), support (61) top is provided with bottom plate (62), parallel arrangement has two linear guide (63) around on bottom plate (62), be provided with connecting plate (64) on linear guide (63), be provided with edger roll subassembly (65) on connecting plate (64), staggered arrangement about edger roll subassembly (65) on front side linear guide (63) and the edger roll subassembly on rear side linear guide (63).

8. A three-wire drawing machine according to claim 7, characterized in that: three vertical roll assemblies (65) are arranged on the front side connecting plate (64) and the rear side connecting plate (64), and three vertical roll assemblies (65) on the front side connecting plate (65) and three vertical roll assemblies (65) on the rear side connecting plate (65) correspond one to respectively form three groups of centering vertical roll assemblies.

9. A three-wire drawing machine according to claim 7, characterized in that: be provided with gear assembly (66) between two front and back linear guide (63), gear assembly (66) are including gear shaft (661) along vertical arrangement, be provided with gear (662) on gear shaft (661), two connecting plate (64) are provided with rack (67) in gear assembly (66) relevant position department around, and rack (67) on two connecting plate (64) around are meshed with gear (662) both sides around respectively.

10. A three-wire drawing machine according to claim 7, characterized in that: the bottom plate (62) bottom is provided with cylinder base (68), the articulated second cylinder (69) that is provided with on cylinder base (68), second cylinder (69) piston rod end is connected with one of them connecting plate (64) through cylinder connecting seat (610).

Technical Field

The invention relates to a three-wire drawing machine, and belongs to the technical field of drawing equipment.

Background

A drawing machine is an apparatus for drawing a metal material. The diameter of the metal material is changed by drawing to achieve the required diameter requirement. The bar and the pipe with different specifications and diameters can be drawn by various drawing modes such as coreless drawing, core-penetrating drawing and the like and by changing a mould. Current drawing equipment is mostly single line processing, can only carry out the cold drawing processing of a steel pipe once promptly, and its production efficiency is low, and product quality is difficult to guarantee.

The utility model discloses an application number is 201921185453.0 utility model discloses a three-wire drawing machine, it is provided with three sets of drawing die utensil on drawing the die holder, receives to expect bench to be provided with three rows of pay-off roll tables, and the position of three rows of pay-off roll tables is corresponding with three sets of drawing die utensil's position, can draw three tubular products simultaneously, and production rhythm is compact, is more than the triple of present single line drawing machine production efficiency, has improved production efficiency greatly. However, the three-wire drawing machine is only suitable for standard bars or pipes, and for some special-shaped materials (such as a lock core rod) with a flat cross section, the special-shaped materials can be obliquely overturned on a material supporting block on a material distribution ring chain in the material loading and distributing process, so that the special-shaped materials cannot smoothly enter a drawing die for drawing operation.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a three-wire drawing machine aiming at the prior art, which can centralize and center a flat workpiece which is obliquely overturned on a material supporting block, so that the workpiece can be aligned with a drawing die to smoothly draw.

The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a three-way drawing machine, it includes receives the material platform, it is provided with the pay-off roll table to receive the material bench, it is provided with pay-off cloth mechanism to receive material platform one side, pay-off cloth mechanism is used for carrying the platykurtic work piece to pay-off roll table position department, it still is provided with turning device and centering device to receive the material bench, turning device is used for overturning the platykurtic work piece that is in the upset state on the pay-off cloth mechanism to being close vertical state, centering device is used for carrying out the centering with the platykurtic work piece that overturns to being close vertical state.

Optionally, a driven roller assembly is arranged at the rear section of the material receiving table, a pinch roller assembly is arranged above the driven roller assembly, and the driven roller assembly and the pinch roller assembly are matched with each other to send the centered flat workpiece into a subsequent drawing die for drawing operation.

Optionally, the turnover device comprises a mounting plate, a material receiving arm is hinged to the mounting plate, a material receiving groove is formed in the top of the material receiving arm, a connecting rod is transversely arranged at the position of the lower portion of the material receiving arm, and the lower portion of the material receiving arm is hinged to the connecting rod.

Optionally, the number of the feeding roller ways is three, three receiving arms are hinged to the mounting plate from left to right, and the positions of the three receiving arms correspond to the positions of the three feeding roller ways respectively.

Optionally, a first air cylinder is hinged to one side of the mounting plate, and a piston rod end of the first air cylinder is hinged to one end of the connecting rod.

Optionally, connect silo front side or rear side to be provided with bilateral symmetry and be provided with two adjusting plates, control two adjusting plates and be the V type and arrange, control the contained angle between two adjusting plates and connect the silo left and right sides wall contained angle unanimous.

Optionally, the centering device comprises a support, a bottom plate is arranged at the top of the support, two linear guide rails are arranged on the bottom plate in a front-back parallel mode, a connecting plate is arranged on each linear guide rail, a vertical roller assembly is arranged on each connecting plate, and the vertical roller assembly on the front linear guide rail and the vertical roller assembly on the rear linear guide rail are arranged in a left-right staggered mode.

Optionally, three vertical roll assemblies are arranged on the front side connecting plate and the rear side connecting plate, and three vertical roll assemblies on the front side connecting plate and three vertical roll assemblies on the rear side connecting plate correspond to each other one by one to form three groups of centering vertical roll assemblies respectively.

Optionally, a gear assembly is arranged between the front linear guide rail and the rear linear guide rail, the gear assembly comprises a gear shaft arranged vertically, a gear is arranged on the gear shaft, racks are arranged at corresponding positions of the gear assembly on the front connecting plate and the rear connecting plate, and the racks on the front connecting plate and the rear connecting plate are respectively meshed with the front side and the rear side of the gear.

Optionally, a cylinder base is arranged at the bottom of the bottom plate, a second cylinder is hinged to the cylinder base, and a piston rod end of the second cylinder is connected with one of the connecting plates through a cylinder connecting seat.

Compared with the prior art, the invention has the advantages that:

the invention relates to a three-wire drawing machine, which is used for righting and centering a flat workpiece which is obliquely overturned on a material supporting block through an overturning device and a centering device, so that the workpiece can be aligned with a drawing die to smoothly draw.

Drawings

FIG. 1 is a schematic structural diagram of a three-wire drawing machine according to the present invention.

Fig. 2 is a schematic structural diagram of the material receiving table in fig. 1.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a side view of fig. 2.

Fig. 5 is a schematic structural diagram of the turning device in fig. 2.

Fig. 6 is a top view of fig. 5.

Fig. 7 is a side view of fig. 5.

Fig. 8 is a schematic structural view of the centering device in fig. 2.

Fig. 9 is a top view of fig. 8.

Fig. 10 is a side view of fig. 8.

Wherein:

receiving platform 1

Roller mechanism 2

Feed roller table 3

Feeding and distributing mechanism 4

Turning device 5

Mounting plate 51

Receiving arm 52

Receiving trough 53

Connecting rod 54

First cylinder 55

Supporting plate 56

Cylinder block 57

Adjusting plate 58

U-bolt hole 59

Centering device 6

Support 61

Base plate 62

Linear guide 63

Connecting plate 64

Vertical roll assembly 65

Gear assembly 66

Gear shaft 661

Gear 662

Rack 67

Cylinder base 68

Second cylinder 69

Cylinder connecting seat 610

Driven roll assembly 7

Pinch roll assembly 8

Frame 9

A flat workpiece 10.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Referring to fig. 1 to 10, the invention relates to a three-wire drawing machine, which comprises a material receiving table 1, wherein a plurality of carrier roller mechanisms 2 are arranged on the material receiving table 1, three feeding roller ways 3 which are arranged in parallel from left to right are arranged on the plurality of carrier roller mechanisms 2, a feeding and distributing mechanism 4 is arranged on one side of the material receiving table 1, the feeding and distributing mechanism 4 is used for conveying a flat workpiece to the positions of the feeding roller ways 3, a turnover device 5 and a centering device 6 are further arranged on the material receiving table 1, the turnover device 5 is used for turning over the flat workpiece which is in a turnover state on the feeding and distributing mechanism 4 to be close to a vertical state, and the centering device 6 is used for centering the flat workpiece which is turned over to be close to the vertical state;

a driven roller assembly 7 is arranged at a position (rear section) close to the tail part of the receiving platform 1, a pinch roller assembly 8 is arranged above the driven roller assembly 7, the driven roller assembly 7 and the pinch roller assembly 8 are matched with each other, and the centered flat workpiece is sent into a subsequent drawing die for drawing operation;

a rack 9 is arranged on the other side of the receiving table 1, and the pinch roll assembly 8 is arranged on the rack 9;

the turnover device 5 comprises a mounting plate 51, three material receiving arms 52 are sequentially hinged to the mounting plate 51 from left to right, the positions of the three material receiving arms 52 correspond to the positions of three feeding roller beds 3 respectively, a material receiving groove 53 is formed in the top of each material receiving arm 52, a connecting rod 54 is transversely arranged at the lower part of each material receiving arm 52, the lower part of each material receiving arm 52 is hinged to the corresponding connecting rod 54, a first air cylinder 55 is hinged to one side of the mounting plate 51, and the piston rod end of each first air cylinder 55 is hinged to one end of the corresponding connecting rod 54;

the connecting rod 54 is positioned at the front side of the material receiving arm 52;

the mounting plate 51 is fixedly arranged on the carrier roller mechanism 2;

the material receiving groove 53 is V-shaped;

the mounting plate 51 is provided with a supporting plate 56 at the position of a first air cylinder 55, an air cylinder seat 57 is arranged on the supporting plate 56, and the first air cylinder 55 is hinged between the air cylinder seat 57 and the mounting plate 51;

the support plate 56 is positioned at the front side of the mounting plate 51;

the front side or the rear side of the material receiving groove 53 is provided with two adjusting plates 58 which are arranged in a left-right symmetrical mode, and the left adjusting plate 58 and the right adjusting plate 58 are arranged in a V shape;

the included angle between the left and right adjusting plates 58 is consistent with the included angle between the left and right side walls of the material receiving groove 53;

the front side or the rear side of the material receiving arm 52 is provided with a U-shaped bolt hole 59 perpendicular to the side wall direction, the adjusting plate 58 is connected with the U-shaped bolt hole 59 on the material receiving arm 52 through a bolt, and the adjusting plate 58 can adjust the inner position and the outer position of the material receiving groove relative to the material receiving groove through an elastic bolt;

the centering device 6 comprises a support 61, a bottom plate 62 is arranged at the top of the support 61, two linear guide rails 63 are arranged on the bottom plate 62 in parallel in the front and back direction, a connecting plate 64 is arranged on the linear guide rails 63, three vertical roll assemblies 65 are sequentially arranged on the connecting plate 64 from left to right, the vertical roll assemblies 65 on the front connecting plate 64 and the vertical roll assemblies 65 on the rear connecting plate 64 are arranged in a left-right staggered manner, the three vertical roll assemblies 65 on the front connecting plate 64 and the three vertical roll assemblies 65 on the rear connecting plate 65 are in one-to-one correspondence to form three sets of centering vertical roll assemblies respectively, and each set of centering vertical roll assemblies corresponds to one feeding roller way 3;

a gear assembly 66 is arranged between the front linear guide rail 63 and the rear linear guide rail 63, the gear assembly 66 comprises a gear shaft 661 which is vertically arranged, a gear 662 is arranged on the gear shaft 661, racks 67 are arranged at corresponding positions of the gear assembly 66 on the front connecting plate 64 and the rear connecting plate 64, and the racks 67 on the front connecting plate 64 and the rear connecting plate 64 are respectively meshed with the front side and the rear side of the gear 662;

the bottom of the bottom plate 62 is provided with a cylinder base 68, the cylinder base 68 is hinged with a second cylinder 69, and the piston rod end of the second cylinder 69 is connected with one of the connecting plates 64 through a cylinder connecting seat 610.

The working principle is as follows:

the feeding and distributing mechanism is used for feeding and distributing workpieces to the three feeding roller ways, as a material supporting block of the feeding and distributing mechanism is of a V-shaped structure, and the cross sections of workpieces such as lock cylinder rods are flat, the workpieces are placed on the material supporting block and can be integrally tilted and fallen onto one side wall of the V-shaped material supporting block, at the moment, the turnover device acts, the connecting rod is driven by the first air cylinder to transversely move left and right, the material receiving arm is driven to rotate left and right, turnover operation is carried out on the flat workpieces tilted and fallen onto the material supporting block, and the turnover action is stopped when the flat workpieces are close to a vertical state; and then the centering device acts, the front connecting plate and the rear connecting plate are driven to move relatively by the second air cylinder, so that the two vertical roller assemblies of the same group of middle roller assemblies move oppositely to center the flat workpiece close to the vertical state, and the centered workpiece can be sent into a subsequent drawing die for drawing operation under the action of the pinch roller assembly and the driven roller assembly.

In addition, the present invention also includes other embodiments, and any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.