Cold header feeding mechanism with length-adjustable structure

Abstract

The utility model relates to the technical field of cold headers, in particular to a cold header feeding mechanism with a length-adjustable structure, the left side of a box body is fixedly connected with a bent plate, and the lower part of the inner wall of the bent plate is fixedly connected with an air cylinder. According to the cold header feeding mechanism with the length-adjustable structure, an output shaft of a double-shaft motor rotates to drive two first bevel gears to rotate so as to drive two second bevel gears to rotate, the second bevel gears rotate to drive a threaded rod to rotate, and the threaded rod rotates to drive a box body to move so as to drive a plurality of rolling wheels to roll along the inner wall of a sliding groove machined in a base; an output shaft of a third motor rotates to drive a worm to rotate so as to drive two worm wheels to rotate, the worm wheels rotate to drive a transmission rod to swing so as to drive a clamping block to move, so that the length of the wire can be adjusted according to the requirement of the cold header, the length of the wire entering the cold header is more accurate, the probability that products subsequently machined by the cold header are unqualified is reduced, and the production efficiency is improved. Therefore, the working quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold header technical field, concretely is a kind of cold header feeding mechanism with adjustable length structure. BACKGROUND

[0002] Cold header is a kind of cutting and cold extrusion to various treated metal wires, so that wire is formed in die cold heading equipment for processing various standard, non-standard fastener, cold header usually needs adjustable length mechanism feeding mechanism to feed.

[0003] For example, the announcement number is "CN218656581U" a kind of cold header feeding structure, by installing directional wheel and traction wheel, before feeding, start second motor, drive traction wheel to rotate, embryo material is constantly moved forward, by multiple groups of lower guide wheel and upper guide wheel, the embryo material of coiling is straightened, facilitate subsequent embryo material to process.But the cold header feeding structure of this, through directional wheel and traction wheel can automatic feeding, but the length of feeding cannot be adjusted, the length of material is too long or too short, it is easy to lead to subsequent processing product unqualified, thereby reduce the quality of work. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem that through directional wheel and traction wheel can automatic feeding, but the length of feeding cannot be adjusted, the length of material is too long or too short, it is easy to lead to subsequent processing product unqualified, thereby reduce the quality of work, and propose a kind of cold header feeding mechanism with adjustable length structure.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] Design a kind of cold header feeding mechanism with adjustable length structure, including base and box, the bottom plate inner wall is slidably connected with box, the box is equipped with limiting mechanism inside, the base is equipped with adjusting mechanism inside, the right side of the base inner wall is rotatably connected with multiple conveying rollers by pin shaft, the conveying roller drive shaft rear end of left side is fixedly connected with first motor drive shaft, the first motor end is fixedly connected with base, the left side of the box is fixedly connected with bent plate, the bent plate inner wall lower part is fixedly connected with air cylinder, the base upper side is equipped with wire.

[0007] Preferably, the air cylinder output end is fixedly connected with moving plate, the moving plate inner wall is rotatably connected with second motor output shaft by bearing.

[0008] Preferably, the limiting mechanism comprises a third motor, the third motor is fixedly connected with the transverse plate, the output shaft of the third motor is fixedly connected with a worm, the worm is rotatably connected with the box through a bearing, the worm is engaged with two worm gears, the worm gear transmission shafts are rotatably connected with the box through bearings, the worm gear transmission shafts are fixedly connected with transmission rods, the transmission rods are fixedly connected with clamping blocks, and the clamping blocks are in abutment with the wire.

[0009] Preferably, the two ends of the transverse plate are fixedly connected with the box, and the wire sequentially passes through the bending plate, the clamping block, the base and the plurality of conveying rollers from left to right.

[0010] Preferably, the adjusting mechanism comprises a double-shaft motor and a roller, the output shafts of the double-shaft motor are rotatably connected with the base through bearings, the outer walls of the output shafts of the double-shaft motor are fixedly connected with the inner walls of two first bevel gears, the first bevel gears are engaged with second bevel gears, the second bevel gear transmission shafts are fixedly connected with threaded rods, the threaded rods are fixedly connected with the box through bearings, the threaded rods are connected with the box through threads, and the outer walls of the rollers are matched with the inner walls of the sliding grooves processed on the base.

[0011] Preferably, the roller is rotatably connected with the box through a pin shaft, and the double-shaft motor is fixedly connected with the base through a support.

[0012] Preferably, the second motor is fixedly connected with the moving plate, and the outer wall of the output shaft of the second motor is fixedly connected with the inner wall of the cutting knife.

[0013] The cold header feeding mechanism with the adjustable length structure has the beneficial effects that: through the cooperation of the adjusting mechanism and the limiting mechanism, the output shaft of the double-shaft motor rotates to drive the two first bevel gears to rotate, thereby driving the two second bevel gears to rotate, the second bevel gear rotates to drive the threaded rod to rotate, the threaded rod rotates to drive the box to move, thereby driving the plurality of rollers to roll along the inner walls of the sliding grooves processed on the base, the output shaft of the third motor rotates to drive the worm to rotate, thereby driving the two worm gears to rotate, the worm gear rotates to drive the transmission rod to swing, thereby driving the clamping block to move, so that the length of the wire can be adjusted according to the needs of the cold header, the length of the wire entering the cold header is more accurate, the probability of the product processed by the cold header being unqualified is reduced, and therefore the working quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a front view of the utility model; Figure 1

[0016] Figure 3 It is a sectional view of the utility model; Figure 2 ​A local enlarged schematic view of the middle;

[0017] Figure 4 For Figure 2 A local left side sectional view;

[0018] Figure 5 For Figure 2 A local top sectional view of the middle adjusting mechanism;

[0019] Figure 6 For Figure 2 A local right side sectional view of the middle limiting mechanism.

[0020] In the figure: 1, base, 2, adjusting mechanism, 201, double-shaft motor, 202, first bevel gear, 203, second bevel gear, 204, threaded rod, 205, roller, 3, box, 4, bent plate, 5, limiting mechanism, 501, third motor, 502, worm, 503, worm gear, 504, transmission rod, 505, clamping block, 6, cross plate, 7, first motor, 8, conveying roller, 9, wire, 10, air cylinder, 11, moving plate, 12, cutting knife, 13, second motor. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings:

[0022] Refer to the drawings Figures 1-6 In the embodiment, a cold header feeding mechanism with adjustable length structure includes base 1 and box 3, and the inner wall of base 1 is slidably connected with box 3; the inside of box 3 is provided with limiting mechanism 5; the inside of base 1 is provided with adjusting mechanism 2; a plurality of conveying rollers 8 are rotatably connected to the right side of the inner wall of base 1 through pin shafts; the rear end of the transmission shaft of the left conveying roller 8 is fixedly connected with the transmission shaft of first motor 7; first motor 7, second motor 13 and third motor 501 are all selected from servo motors; the end of first motor 7 is fixedly connected with base 1; bent plate 4 is fixedly connected to the left side of box 3; air cylinder 10 is fixedly connected to the lower inner wall of bent plate 4; the model of air cylinder 10 is selected according to actual needs, and it can meet the working needs; wire 9 is arranged above base (1).

[0023] The limiting mechanism 5 comprises a third motor 501, the end of the third motor 501 is fixedly connected with the cross plate 6, the output shaft end of the third motor 501 is fixedly connected with a worm 502, the upper part of the worm 502 is rotatably connected with the box body 3 through a bearing, the worm 502 is engaged with two worm gears 503, the left side of the transmission shaft of the worm gear 503 is rotatably connected with the box body 3 through a bearing, the right side of the transmission shaft of the worm gear 503 is fixedly connected with a transmission rod 504, the inner side of the transmission rod 504 is fixedly connected with a clamping block 505, the inner side of the clamping block 505 is tightly abutted with the wire 9, the output shaft of the third motor 501 rotates to drive the worm 502 to rotate, so as to drive the two worm gears 503 to rotate, the worm gear 503 rotates to drive the transmission rod 504 to swing, so as to drive the clamping block 505 to move.

[0024] The output end of the cylinder 10 is fixedly connected with a moving plate 11, the output end of the cylinder 10 moves to drive the moving plate 11 to move, the inner wall of the moving plate 11 is rotatably connected with the output shaft of the second motor 13 through a bearing, the moving plate 11 moves to drive the second motor 13 to move, the two ends of the cross plate 6 are fixedly connected with the box body 3, the wire 9 passes through the bending plate 4, the clamping block 505, the base 1 and the plurality of conveying rollers 8 from left to right, the roller 205 is rotatably connected with the box body 3 through a pin shaft, the double-shaft motor 201 is fixedly connected with the base 1 through a support, the end of the second motor 13 is fixedly connected with the moving plate 11, the outer wall of the output shaft of the second motor 13 is fixedly connected with the inner wall of the cutting knife 12, the output shaft of the second motor 13 rotates to drive the cutting knife 12 to rotate.

[0025] The adjusting mechanism 2 comprises the double-shaft motor 201 and the roller 205, the output shaft of the double-shaft motor 201 is rotatably connected with the base 1 through a bearing, the outer wall of the output shaft of the double-shaft motor 201 is fixedly connected with the inner wall of the two first bevel gears 202, the first bevel gear 202 is engaged with the second bevel gear 203, the transmission shaft of the second bevel gear 203 is fixedly connected with a threaded rod 204, the two ends of the threaded rod 204 are fixedly connected with the base 1 through a bearing, the threaded rod 204 is threadedly connected with the box body 3, the outer wall of the roller 205 is matched with the inner wall of the sliding groove processed on the base 1, the output shaft of the double-shaft motor 201 rotates to drive the two first bevel gears 202 to rotate, so as to drive the two second bevel gears 203 to rotate, the second bevel gear 203 rotates to drive the threaded rod 204 to rotate, the threaded rod 204 rotates to drive the box body 3 to move, so as to drive the plurality of rollers 205 to roll along the inner wall of the sliding groove processed on the base 1.

[0026] Working principle:

[0027] When the feeding mechanism with the adjustable length structure is used to feed the cold header:

[0028] Preparation process:

[0029] The operator passes the wire 9 through the bending plate 4, the clamping block 505, the left side of the base 1 and the plurality of conveying rollers 8, and then passes the wire 9 from the left rear side through the right side of the base 1 into the cold header.

[0030] Adjusting process:

[0031] First, according to the length of the wire 9, adjust the position of the cutting knife 12, start the dual-shaft motor 201 power supply, the output shaft of the dual-shaft motor 201 rotates to drive the two first bevel gears 202 to rotate, thereby driving the two second bevel gears 203 to rotate, the second bevel gears 203 rotate to drive the threaded rod 204 to rotate, the threaded rod 204 rotates to drive the box body 3 to move, thereby driving the plurality of rollers 205 to roll along the inner wall of the sliding groove processed by the base 1, the movement of the box body 3 can drive the cutting knife 12 to move, when the cutting knife 12 moves to the length of the wire 9 required by the cold header, turn off the power supply of the dual-shaft motor 201;

[0032] Feeding process:

[0033] The wire 9 on the right side is located between the two left conveying rollers 8, the output shafts of the left conveying rollers 8 are connected with the first motor 7, the first motor 7 is selected to be a servo motor, the first motor 7 has a self-locking function, when the wire 9 is located between the conveying rollers 8 connected with the first motor 7, the first motor 7 is not started, so as to fix the right side of the wire 9, then start the power supply of the third motor 501, the positive rotation of the output shaft of the third motor 501 drives the worm 502 to rotate, thereby driving the two worm gears 503 to rotate, the rotation of the worm gears 503 drives the transmission rod 504 to swing, thereby driving the clamping block 505 to move, when the inner sides of the clamping block 505 are in close contact with the wire 9, turn off the power supply of the third motor 501, fix the left side of the wire 9, when it is needed to be loosened, reverse rotation of the third motor 501 can be realized, then start the power supply of the second motor 13, the rotation of the output shaft of the second motor 13 drives the cutting knife 12 to rotate, then start the air cylinder 10, the movement of the output end of the air cylinder 10 drives the moving plate 11 to move, thereby driving the cutting knife 12 to move downward, so as to cut the wire 9, after cutting, start the first motor 7 to drive the conveying roller 8 to rotate, so that the cut wire 9 moves to the right and enters the cold header for processing, the process of entering the cold header is consistent with the process of entering the cold header in the publication number "CN218656581U", here, no further description is made, so that the length of the wire 9 entering the cold header can be adjusted through the cooperation of the limiting mechanism 5 and the adjusting mechanism 2, so as to reduce the probability of unqualified products processed by the subsequent cold header, thereby improving the working quality.

[0034] Although the utility model has been illustrated and described by referring to the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details can be made within the scope of the claims.

Claims

1. A cold header feeding mechanism with adjustable length structure, comprising a base (1) and a box (3), the inner wall of the base (1) is slidingly connected with the box (3), characterized in that: The inside of the box (3) is equipped with a limiting mechanism (5), the inside of the base (1) is equipped with an adjusting mechanism (2), a plurality of conveying rollers (8) are rotatably connected to the right side of the inner wall of the base (1) through a pin shaft, the rear end of the transmission shaft of the left conveying roller (8) is fixedly connected with the transmission shaft of the first motor (7), the end of the first motor (7) is fixedly connected with the base (1), the left side of the box (3) is fixedly connected with a bent plate (4), the lower inner wall of the bent plate (4) is fixedly connected with an air cylinder (10), and the upper side of the base (1) is provided with a wire (9).

2. A feed mechanism for a cold header having an adjustable length structure according to claim 1, characterized in that: The output end of the air cylinder (10) is fixedly connected with a moving plate (11), and the inner wall of the moving plate (11) is rotatably connected with the output shaft of the second motor (13) through a bearing.

3. The feed mechanism of a cold header with adjustable length structure according to claim 1, characterized in that: The limiting mechanism (5) comprises a third motor (501), the end of the third motor (501) is fixedly connected with a horizontal plate (6), the output shaft end of the third motor (501) is fixedly connected with a worm (502), the upper side of the worm (502) is rotatably connected with the box (3) through a bearing, the worm (502) is engaged with two worm gears (503), the left side of the transmission shaft of the worm gear (503) is rotatably connected with the box (3) through a bearing, the right side of the transmission shaft of the worm gear (503) is fixedly connected with a transmission rod (504), and the inner side of the transmission rod (504) is fixedly connected with a clamping block (505).

4. A feed mechanism for a cold header having an adjustable length structure according to claim 3, characterized in that: The two ends of the horizontal plate (6) are fixedly connected with the box (3), and the wire (9) passes through the bent plate (4), the clamping block (505), the base (1) and the plurality of conveying rollers (8) from left to right in sequence.

5. The feed mechanism of a cold header with adjustable length structure according to claim 1, characterized in that: The adjusting mechanism (2) comprises a double-shaft motor (201) and a roller (205), the output shafts of the double-shaft motor (201) are rotatably connected with the base (1) through bearings, the outer walls of the output shafts of the double-shaft motor (201) are fixedly connected with the inner walls of two first bevel gears (202), the first bevel gears (202) are engaged with second bevel gears (203), the left sides of the transmission shafts of the second bevel gears (203) are fixedly connected with threaded rods (204), the two ends of the threaded rod (204) are fixedly connected with the base (1) through bearings, the threaded rod (204) is connected with the box (3) in a threaded manner, and the outer walls of the rollers (205) are matched with the inner walls of the sliding grooves processed on the base (1).

6. A feed mechanism for a cold header having an adjustable length structure according to claim 5, characterized in that: The roller (205) is rotatably connected with the box (3) through a pin shaft, and the double-shaft motor (201) is fixedly connected with the base (1) through a support.

7. A feed mechanism for a cold header having an adjustable length structure according to claim 2, characterized in that: The end of the second motor (13) is fixedly connected with the moving plate (11), and the outer wall of the output shaft of the second motor (13) is fixedly connected with the inner wall of the cutting knife (12).

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