Cutting and feeding assembly and heading machine thereof

Abstract

The cutting and feeding assembly comprises a cutting sliding plate, and an arc-shaped guide groove is formed in the upper end face of the cutting sliding plate in the length direction; the feeding sliding plate is provided with a through hole, a reversing sliding shaft capable of being matched with the arc-shaped guide groove is arranged in the through hole, one end of the feeding sliding plate is connected with a feeding head, and the other end of the feeding sliding plate is hinged to a cutting mechanism arranged on the upper portion of the feeding head. The feeding sliding plate matched with the cutting sliding plate is arranged on the cutting sliding plate, the cutting mechanism and the feeding head are connected together, and under the action of a reversing sliding shaft and an arc-shaped guide groove, longitudinal movement of the cutting sliding plate is synchronously converted into transverse reciprocating movement; the feeding head is used for feeding wire materials towards one side of the main die, and meanwhile, bolts which are punched last time are cut off under the action of the cutting conductor, fall off from the main die and are collected in a centralized mode.

Description

Technical Field

[0001] The invention belongs to the technical field of heading machines, and in particular relates to a cutting and feeding assembly and a heading machine thereof. Background Art

[0002] The screw heading machine is a cold heading equipment, which is a one-die two-punch product. It is mainly used for the head forming of screw products. Its working principle is to straighten the wire, feed the wire, cut it, feed it into the main die, punch it for initial forging, and punch it for forming the blank. It works in one go, and its production capacity can reach about 200 pieces per minute. It is a relatively advanced equipment at present. It can forge various metal materials: ordinary steel, carbon steel, stainless steel, copper, aluminum, alloy steel and other materials, and is used for ordinary self-tapping screws, electrical screws, micro screws, internal and external hexagonal bolts, self-drilling screws, fiberboard screws and other products.

[0003] Chinese patent document with application number CN202223034424.9 discloses an adjustable screw heading machine, including a machine base, a scissors drive device fixed to the machine base, a connecting rod assembly connected to the scissors drive device at one end, and a driving mechanism connecting the other end of the connecting rod assembly and connected to the machine base.

[0004] With further research by the applicant, it was found that although the technical solution can feed the wire into one side of the main die through the scissors assembly and into the die hole under the action of the die, in order to ensure the continuity of the processing, after the die processing is completed, the stamped bolts need to be sheared off so that they can be separated from the main die to complete the closed-loop operation of the cyclic processing. However, the feeding and cutting steps of the existing heading machine are two relatively independent mechanical structures, which cannot ensure that the two are matched in beat frequency, and the reliability needs to be strengthened. Summary of the invention

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A cutting and feeding assembly, comprising:

[0007] The cutting slide plate has an arc-shaped guide groove on its upper end surface along the length direction;

[0008] A feeding slide plate is provided with a through hole, in which a reversing slide shaft which can cooperate with the arc guide groove is provided, one end of the feeding slide plate is connected to a feeding head, and the other end is hinged to a cutting mechanism arranged on the upper part of the feeding head, and when the cutting mechanism is in a working state, a cutting knife body in the cutting mechanism is vertically arranged on the outer side of the feeding head;

[0009] When the cutting slide is driven by the external transmission assembly to reciprocate longitudinally, the feeding slide and the cutting mechanism move back and forth transversely through the relative sliding cooperation between the reversing slide shaft and the arc guide groove.

[0010] Furthermore, the cutting slide plate has convex blocks and concave blocks arranged in pairs, and there is a gap between the convex blocks and the concave blocks to form the arc guide groove.

[0011] Furthermore, a hinge rod is connected to the tail of the cutting slide plate, and is connected to the transmission assembly through the hinge rod.

[0012] Furthermore, the cutting mechanism also includes a cutting knife seat, and the cutting knife body is detachably connected to the head of the cutting knife seat.

[0013] Furthermore, a hinge seat is provided at one end of the cutting slide away from the feeding head, and the cutting knife seat is connected to the hinge seat.

[0014] Furthermore, it also includes a limiting seat that cooperates with the cutting knife seat.

[0015] The invention also discloses a heading machine, which comprises an upper machine body, a lower machine base, a cutting and feeding assembly placed in the upper machine body, a main die, a punch die, a transmission assembly and a sliding push assembly driving the punch die to approach or move away from the main die.

[0016] Furthermore, a lifting and lowering assembly is connected to the lower machine base, and the lifting and lowering assembly forces the die to reciprocate up and down on the side of the sliding assembly.

[0017] Furthermore, the transmission assembly includes a main shaft and a gear set sleeved on the outer periphery of the main shaft. The main shaft has an eccentric shaft in the middle, and a push head matching the sliding push assembly is sleeved on the outer periphery of the eccentric shaft.

[0018] Furthermore, the main die is provided with a die hole, and the outer side of the punch die is provided with at least two punch holes from top to bottom, and the punch holes are equipped with punches matching the die holes.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] A matching feeding slide is arranged on the cutting slide. The cutting mechanism is connected to the feeding head, and under the action of the reversing slide shaft and the arc guide groove, the longitudinal movement of the cutting slide is synchronously converted into lateral reciprocating movement, so that the feeding head can feed the wire material toward one side of the main mold. At the same time, the bolts that have completed stamping on the previous stage are cut off and dropped from the main mold and collected under the action of the cutting conductor. In this way, the feeding and cutting of the wire are combined to form a whole, and linkage is realized in the mechanical movement, so the action frequency and reliability are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a heading machine according to a specific embodiment of the present invention (viewing angle 1);

[0022] Figure 2A schematic diagram of the three-dimensional structure of a heading machine according to a specific embodiment of the present invention (viewing angle 2);

[0023] Figure 3 A schematic diagram of the partial structure of a heading machine according to a specific embodiment of the present invention (viewing angle 1);

[0024] Figure 4 A schematic diagram of the partial structure of a heading machine according to a specific embodiment of the present invention (viewing angle 2);

[0025] Figure 5 for Figure 3 Schematic diagram of the local structure after removing the push-pull assembly;

[0026] Figure 6 for Figure 5 Schematic diagram of the local structure from another perspective;

[0027] Figure 7 This is a schematic diagram of the exploded structure of the cutting and feeding assembly in the heading machine according to a specific embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the overall structure of the cutting and feeding assembly in the heading machine according to a specific embodiment of the present invention;

[0029] Fig. 9 A schematic diagram of the three-dimensional structure of a cutting slide and a reversing slide shaft in a specific embodiment of the present invention;

[0030] The reference numerals in the drawings of the specification include:

[0031] Cutting and feeding assembly A, cutting slide plate 1, protrusion 10, arc guide groove 100, recess 11, slide plate hinge rod 12, slide seat 14, feeding slide plate 2, through hole 20, reversing slide shaft 21, feeding head 22, cutting knife body 30, cutting knife seat 31, hinge seat 32, limit seat 33, upper body 4, lower machine base 5, main mold 60, mold hole 600, punching die 61, punching hole 610, sliding push assembly 7, lifting assembly 8, transmission assembly 9, main shaft 90, gear set 91, eccentric shaft 92, push head 93. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Among them, the drawings are only used for illustrative purposes, and they only show schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted, and the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like appear, the directions or positional relationships indicated are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, so the terms describing the positional relationship in the drawings are only used for illustrative purposes, and cannot be understood as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] like Figure 1 - Fig. 9 As shown, a cutting and feeding assembly of the present invention comprises a cutting slide plate 1 and a feeding slide plate 2;

[0035] Wherein, an arc-shaped guide groove 100 is provided on the upper end surface of the cutting slide plate 1 along the length direction;

[0036] A through hole 20 is provided on the feeding slide plate 2, in which a reversing slide shaft 21 which can cooperate with the arc-shaped guide groove 100 is provided. A feeding head 22 is connected to one end of the feeding slide plate 2, and a cutting mechanism arranged on the upper part of the feeding head 22 is hingedly connected to the other end. When the cutting mechanism is in working state, the cutting blade body 30 in the cutting mechanism is vertically arranged on the outer side of the feeding head 22;

[0037] When the cutting slide 1 is driven by the external transmission assembly 9 to reciprocate longitudinally, the feeding slide 2 and the cutting mechanism reciprocate laterally through the relative sliding cooperation between the reversing slide shaft 21 and the arc guide groove 100 .

[0038] A matching feeding slide 2 is arranged on the cutting slide 1. The cutting mechanism is connected to the feeding head 22, and under the action of the reversing slide shaft 21 and the arc guide groove 100, the longitudinal movement of the cutting slide 1 is synchronously converted into a lateral reciprocating movement, so that the feeding head 22 can feed the wire material toward one side of the main mold 60. At the same time, the bolts that have completed stamping on the previous stage are cut off by the cutting conductor and fall from the main mold 60 and are collected. This method combines the feeding and cutting of the wire to form a whole, realizes linkage in mechanical movement, and its action frequency and reliability are guaranteed.

[0039] The cutting slide plate 1 has a pair of convex blocks 10 and concave blocks 11, and a gap is formed between the convex blocks 10 and the concave blocks 11 to form an arc-shaped guide groove 100. The convex blocks 10 and the concave blocks 11 are detachable.

[0040] In addition, a hinge rod is connected to the tail of the cutting slide plate 1, and is connected to the transmission assembly 9 through the hinge rod.

[0041] The cutting mechanism further comprises a cutting knife seat 31, and the cutting knife body 30 is detachably connected to the head of the cutting knife seat 31. A hinge seat 32 is arranged at one end of the cutting slide 1 away from the feeding head 22, and the cutting knife seat 31 is connected to the hinge seat 32.

[0042] Since the cutting knife seat 31 is hinged to the hinge seat 32, when the punch needs to be replaced or the wire needs to be adjusted, the operator can manually pry the cutting knife seat 31 and turn it upward. After completing the maintenance and preparation, the cutting knife seat 31 is restored.

[0043] Specifically, the front end of the feeding head is U-shaped, and when the feeding head moves horizontally, the wire is in the U-shaped structure and is pushed. The through hole is in a racetrack shape.

[0044] In addition, a limit seat 33 cooperating with the cutting knife seat 31 is also connected to the upper end of the upper body 4. After the cutting knife seat 31 is lowered, the cutting knife seat 31 is in the limit seat 33. The function of the limit seat 33 can prevent the cutting knife seat 31 and the cutting knife body 30 from shaking when interacting with the wire.

[0045] The present invention also discloses a heading machine, which comprises an upper body 4, a cutting and feeding assembly A, a main die 60, a punching die 61, a transmission assembly 9, and a sliding assembly 7 for driving the punching die 61 to move closer to or away from the main die 60. The cutting slide 1 in the cutting and feeding assembly A is connected to the side of the upper body 4 through a slide seat 14.

[0046] A lifting assembly 8 is connected to the lower machine base 5, and the lifting assembly 8 forces the punch 61 to reciprocate up and down on the side of the slide assembly 7. The lifting assembly 8 is provided to realize one-die two-punch. After the first forging of the punch 61 is completed, the position of the punch 61 is moved up or down to realize the switching of the punch. After the punch of the switching head acts on the main die 60, the bolt head is formed.

[0047] In addition, the transmission assembly 9 includes a main shaft 90 and a gear set 91 sleeved on the outer periphery of the main shaft 90 . The main shaft 90 has an eccentric shaft 92 in the middle, and a push head 93 that matches the slide push assembly 7 is sleeved on the outer periphery of the eccentric shaft 92 .

[0048] Due to the setting form of the eccentric shaft 92, when the main shaft 90 is acted upon by an external power source, the push head 93 connected to the eccentric head shaft realizes forward or head movement, thereby the sliding push assembly 7 drives the die 61 to move closer to or away from one side of the main die 60.

[0049] Specifically, at least two punching holes 610 are formed on the outside of the punching die 61 from top to bottom, and the main die 60 can have two die holes 600, and punches (not shown) matching the die holes 600 are installed in the punching holes 610. One of the die holes 600 of the main die 60 is used to place the switched initial forging punch during the second punching process.

[0050] The above-mentioned sliding push assembly 7 and lifting assembly 8 are both existing technologies. The specific structure and connection form can refer to the technical solution mentioned in the background technology. Therefore, they at least have the beneficial effects brought by the technical solution of the above-mentioned embodiment, and will not be repeated here. The above-mentioned structure does not belong to the protection scope of this application.

[0051] The above are only embodiments of the present invention. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field to which the invention belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement the scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for the ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A cutting and feeding assembly, characterized in that: include: The cutting slide plate (1) has an upper end surface provided with an arc-shaped guide groove (100) along the length direction; A feeding slide plate (2) is provided with a through hole (20), a reversing slide shaft (21) which can cooperate with the arc-shaped guide groove (100) is arranged in the through hole (20), one end of the feeding slide plate (2) is connected to a feeding head (22), and the other end is hinged to a cutting mechanism (3) arranged on the upper part of the feeding head (22), and when the cutting mechanism (3) is in a working state, a cutting knife body (30) in the cutting mechanism (3) is vertically arranged on the outer side of the feeding head (22); When the cutting slide plate (1) is driven by the external transmission component (9) to move back and forth longitudinally, the feeding slide plate (2) and the cutting mechanism (3) move back and forth transversely through the relative sliding cooperation between the reversing slide shaft (21) and the arc guide groove (100).

2. A cutting and feeding assembly according to claim 1, characterized in that: The cutting slide plate (1) has convex blocks (10) and concave blocks (11) arranged in pairs, and a gap is provided between the convex blocks (10) and the concave blocks (11) to form the arc-shaped guide groove (100).

3. A cutting and feeding assembly according to claim 1, characterized in that: The tail of the cutting slide plate (1) is connected to a hinge rod, and is connected to the transmission assembly (9) via the hinge rod.

4. A heading machine, comprising an upper machine body (4), a lower machine base (5), a cutting and feeding assembly (A) placed in the upper machine body (4), a main die (60), a punch die (61), a transmission assembly (9), and a sliding assembly (7) for driving the punch die (61) to move closer to or away from the main die (60), characterized in that: The cutting and feeding component (A) is the cutting and feeding component (A) according to any one of claims 1 to 3.

5. A heading machine as claimed in claim 4, characterized in that: The lower machine base (5) is connected to a lifting assembly (8), and the lifting assembly (8) forces the punching die (61) to move up and down on the side of the sliding assembly (7).

6. A heading machine as claimed in claim 5, characterized in that: The transmission assembly (9) comprises a main shaft (90) and a gear set (91) sleeved on the outer periphery of the main shaft (90); an eccentric shaft (92) is provided in the middle of the main shaft (90); and a push head (93) matching with the sliding push assembly (7) is sleeved on the outer periphery of the eccentric shaft (92).

7. A heading machine as claimed in claim 4, 5 or 6, characterized in that: The main die (60) is provided with a die hole (600), and the outer side of the punch die (61) is provided with at least two punch holes (610) from top to bottom, and the punch holes (610) are installed with punches matching the die holes (600).

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