Long, short, thick and thin material mixing prevention mechanism of thread rolling machine

Abstract

The utility model discloses a long, short, thick and thin material mixing prevention mechanism of a thread rolling machine, and relates to the technical field of fastener machining. The device structurally comprises a conveying frame, a belt conveyor, an impact rejector, a first U-shaped mounting seat and a second U-shaped mounting seat, the conveying frame comprises a first flat plate; an L-shaped panel is fixed on one side of the lower surface of the first panel; a flow guide side plate is fixed on the side surface of the first plate adjacent to the L-shaped plate; the belt conveyor is mounted on the L-shaped flat plate; the first flat plate and the L-shaped flat plate are jointly mounted on the base; and the first U-shaped mounting seat is mounted on the first flat plate. Through the combination of the material conveying frame and the belt conveyor, over-thick bolt blanks are removed from the front end, and over-thin bolt blanks are removed under the action of gravity; through cooperation of the first correlation switch, the second correlation switch, the inductive switch and the impact rejector, overlong and overshort bolts can be detected and rejected, the consistency of product sizes is guaranteed, and unqualified products are effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fastener processing, in particular to a thread rolling machine anti-length, short, coarse and fine material mixing mechanism. Background Art

[0002] Thread rolling is an important step in bolt production, and the thread rolling machine is a professional equipment for producing bolts. The forming process before thread rolling sometimes outputs bolt blanks with unqualified length, thickness and fineness, which are difficult for workers to find with the naked eye. The long or thick bolt blanks mixed with qualified bolt blanks often cause equipment accidents. The short or thin bolts cannot meet the use requirements, which reduces product quality and production efficiency. Therefore, a device is needed that can remove the unqualified bolt blanks with length, thickness and fineness, prevent mixing, and ensure production quality. Utility Model Content

[0003] The utility model aims to provide a mechanism for preventing the mixing of length, thickness and fineness of a thread rolling machine, which can remove unqualified bolt blanks in length and thickness through a feeding rack, a belt conveyor, a first shooting switch, a second shooting switch, an induction switch and an impact rejector, thereby ensuring the consistency of product size.

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model discloses a thread rolling machine anti-length, short, coarse and fine mixing mechanism, comprising a feed frame, a belt conveyor, an impact rejector, a first U-shaped mounting seat and a second U-shaped mounting seat; the feed frame comprises a first flat plate; an L-shaped flat plate is fixed to one side of the lower surface of the first flat plate; a guide side plate is fixed to the side of the first flat plate adjacent to the L-shaped flat plate; the belt conveyor is mounted on the L-shaped flat plate; the first flat plate and the L-shaped flat plate are mounted together on a base; the first U-shaped mounting seat is mounted on the first flat plate; the second U-shaped mounting seat is mounted on the L-shaped flat plate, and the second U-shaped mounting seat is arranged relatively parallel to the first U-shaped mounting seat.

[0006] The first U-shaped mounting seat and the second U-shaped mounting seat are correspondingly mounted with a first pair of shooting switches and the first pair of shooting switches are located above the second pair of shooting switches; the second pair of shooting switches are located above the guide side plate; an induction switch is also mounted on the first U-shaped mounting seat, and a through hole cooperating with the induction switch is provided on the guide side plate; the impact ejector is mounted on the first flat plate through a fixed frame; the telescopic end of the impact ejector is vertically downward and is located between the guide side plate and the belt conveyor; the first U-shaped mounting seat and the second U-shaped mounting seat are located on both sides of the impact ejector; a discharge hole is provided on the base, and the discharge hole is located directly below the telescopic end of the impact ejector.

[0007] As an optimal technical solution of the utility model, the belt conveyor includes two toothed pulleys rotatably mounted on the L-shaped plate; toothed belts are mounted on the two toothed pulleys; and a servo motor for driving one of the toothed pulleys is mounted under the L-shaped plate.

[0008] As a preferred technical solution of the utility model, a row of anti-skew rollers in contact with the inner side of the toothed belt is fixed on the upper surface of the L-shaped flat plate.

[0009] As a preferred technical solution of the utility model, the impact ejector is an electric telescopic rod or a cylinder; the telescopic end of the impact ejector is installed with a rubber sleeve.

[0010] As a preferred technical solution of the utility model, the base is an H-shaped structure; the upper ends of the two vertical plates of the base are fixedly connected to the lower surface of the first flat plate and the lower surface of the L-shaped flat plate respectively; a slat is fixed to the lower end of each of the two vertical plates of the base; a row of threaded holes is provided on the slat; a blanking hole is provided on the horizontal plate of the base, and the blanking hole is located directly below the discharge hole.

[0011] As a preferred technical solution of the utility model, the side walls away from the first U-shaped mounting seat and the second U-shaped mounting seat are respectively provided with two first circular holes for installing the first and second pairing switches; the side walls adjacent to the first U-shaped mounting seat are respectively provided with second circular holes coaxially arranged with the first circular holes; the two walls of the first U-shaped mounting seat are provided with third circular holes for penetrating and installing the induction switch; and the third circular hole is coaxially arranged with the through hole.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model combines a feeding rack and a belt conveyor to remove overly thick bolt blanks at the front end, and utilizes gravity to remove overly thin bolt blanks; cooperates with the first shooting switch, the second shooting switch, the induction switch and the impact rejector to detect and remove overly long and short bolts, thereby ensuring the consistency of product size and effectively reducing the generation of unqualified products.

[0014] 2. The impact rejector of the utility model adopts an electric telescopic rod or a cylinder, which has a fast response speed and a good rejecting effect. At the same time, a rubber sleeve is installed at the telescopic end to protect the end from damage.

[0015] 3. The anti-length, coarse and fine mixing mechanism of the thread rolling machine of the utility model can effectively remove unqualified bolt blanks, improve product quality, reduce production costs, and has high practical value.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of the anti-length, coarse and fine material mixing mechanism of the thread rolling machine of the utility model.

[0019] Figure 2 It is a front view of the utility model.

[0020] Figure 3 It is the right view of the utility model.

[0021] Figure 4 It is a schematic diagram of the structure of a feed rack, a belt conveyor, a first U-shaped mounting seat, a second U-shaped mounting seat and an anti-deviation roller.

[0022] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-feeding rack, 2-belt conveyor, 3-impact rejector, 4-first U-shaped mounting seat, 5-second U-shaped mounting seat, 6-first shooting switch, 7-second shooting switch, 8-induction switch, 9-fixed frame, 10-anti-deviation roller, 11-first circular hole, 12-second circular hole, 13-third circular hole, 101-first flat plate, 102-L-shaped flat plate, 103-guide side plate, 104-base, 105-discharge hole, 21-toothed pulley, 22-toothed belt, 23-servo motor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment one:

[0027] See also Figure 1-5As shown, the utility model is a thread rolling machine anti-length, coarse and fine mixing mechanism, including a feed frame 1, a belt conveyor 2, an impact rejector 3, a first U-shaped mounting seat 4, and a second U-shaped mounting seat 5. The feed frame 1 includes a first flat plate 101. An L-shaped flat plate 102 is fixed to one side of the lower surface of the first flat plate 101. A guide side plate 103 is fixed to the side of the first flat plate 101 adjacent to the L-shaped flat plate 102. The belt conveyor 2 is installed on the L-shaped flat plate 102. The first flat plate 101 and the L-shaped flat plate 102 are installed together on a base 104. The belt conveyor 2 includes two toothed pulleys 21 rotatably mounted on the L-shaped flat plate 102. Toothed belts 22 are installed on the two toothed pulleys 21. A servo motor 23 for driving one of the toothed pulleys 21 is installed below the L-shaped flat plate 102.

[0028] The impact ejector 3 is mounted on the first flat plate 101 through a fixed frame 9. The telescopic end of the impact ejector 3 is vertically downward and is located between the guide side plate 103 and the belt conveyor 2; the first U-shaped mounting seat 4 and the second U-shaped mounting seat 5 are located on both sides of the impact ejector 3; a discharge hole 105 is opened on the base 104, and the discharge hole 105 is located directly below the telescopic end of the impact ejector 3.

[0029] The head of the bolt blank faces downward, and the rod body of the bolt blank is clamped between the toothed belt 22 and the guide side plate 103. The distance between the toothed belt 22 and the guide side plate 103 is slightly smaller than the standard diameter of the blank bolt rod, and the amount of this narrowing is not greater than the difference between the standard diameter of the blank bolt rod and the minimum allowable diameter. Driven by the servo motor 23, the toothed belt 22 drives the blank bolt rod to rotate and move against the guide side plate 103. For blank bolts with oversized rods, they cannot enter between the toothed belt 22 and the guide side plate 103, so that overly thick bolts are removed during the entry stage, achieving the purpose of preventing coarseness. For bolts with undersized bolt rods, the clamping force of the toothed belt 22 on the bolts is not enough to offset the weight of the bolts themselves. When the bolts pass through the discharge hole 105, they fall under the action of gravity, so that overly thin bolts are removed.

[0030] The first U-shaped mounting seat 4 is mounted on the first flat plate 101. The second U-shaped mounting seat 5 is mounted on the L-shaped flat plate 102, and the second U-shaped mounting seat 5 is arranged relatively parallel to the first U-shaped mounting seat 4. The first U-shaped mounting seat 4 and the second U-shaped mounting seat 5 are correspondingly mounted with a first beam switch 6 and a second beam switch 7, and the first beam switch 6 is located above the second beam switch 7. The second beam switch 7 is located above the guide side plate 103. The first U-shaped mounting seat 4 is also mounted with an induction switch 8, and the guide side plate 103 is provided with a through hole that cooperates with the induction switch 8.

[0031] Among them, the side walls away from the first U-shaped mounting seat 4 and the second U-shaped mounting seat 5 are respectively provided with two first circular holes 11 for installing the first beam switch 6 and the second beam switch 7. The side walls adjacent to the first U-shaped mounting seat 4 and the second U-shaped mounting seat 5 are respectively provided with second circular holes 12 coaxially arranged with the first circular holes 11. The second circular holes 12 are used for the light of the beam switch to pass through, and the position and width of the light passing through are limited to improve the accuracy of the beam switch detection. The two walls of the first U-shaped mounting seat 4 are provided with third circular holes 13 for penetrating and installing the induction switch 8. And the third circular hole 13 is coaxially arranged with the through hole.

[0032] The induction switch 8 is used to determine whether a bolt blank has passed through, the first beam switch 6 is used to detect whether the height of the bolt blank passing through exceeds the maximum allowed length, and the second beam switch 7 is used to detect whether the height of the bolt blank passing through is less than the minimum allowed length. Among them, the base 104 is an H-shaped structure. The upper ends of the two vertical plates of the base 104 are fixedly connected to the lower surface of the first flat plate 101 and the lower surface of the L-shaped flat plate 102 respectively. A slat is fixed to each of the lower ends of the two vertical plates of the base 104. A row of threaded holes is provided on the slat; a blanking hole is provided on the horizontal plate of the base 104, and the blanking hole is located directly below the discharge hole 105.

[0033] The process of removing the too short bolts: when the induction switch 8 senses the bolts and the signals of the first shooting switch 6 and the second shooting switch 7 are not interrupted, the telescopic end of the impact rejector 3 quickly extends to hit the too short bolts, and the bolt blanks are discharged from the discharge hole 105 below.

[0034] The process of removing the overlong bolts: when the induction switch 8 senses the bolts and the signals of the first shooting switch 6 and the second shooting switch 7 are both interrupted, the telescopic end of the impact remover 3 quickly extends to hit the overlong bolts, and the bolt blanks are discharged from the discharge hole 105 below.

[0035] In order to ensure that the toothed belt 22 has a stable clamping and pushing effect on the bolt blank, a row of anti-deviation rollers 10 in contact with the inner side of the toothed belt 22 are fixed on the upper surface of the L-shaped flat plate 102 .

[0036] Wherein, the impact and rejection device 3 is an electric telescopic rod or a cylinder. The telescopic end of the impact and rejection device 3 is installed with a rubber sleeve to protect the end of the impact and rejection device 3.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A thread rolling machine anti-length, short, thick and thin mixing mechanism, characterized by: It comprises a material conveying frame (1), a belt conveyor (2), an impact ejector (3), a first U-shaped mounting seat (4), and a second U-shaped mounting seat (5); The material conveying frame (1) comprises a first flat plate (101); an L-shaped flat plate (102) is fixed to one side of the lower surface of the first flat plate (101); a guide side plate (103) is fixed to the side of the first flat plate (101) adjacent to the L-shaped flat plate (102); the belt conveyor (2) is mounted on the L-shaped flat plate (102); the first flat plate (101) and the L-shaped flat plate (102) are mounted together on a base (104); The first U-shaped mounting seat (4) is mounted on the first flat plate (101); the second U-shaped mounting seat (5) is mounted on the L-shaped flat plate (102), and the second U-shaped mounting seat (5) and the first U-shaped mounting seat (4) are arranged relatively parallel; A first pair of beam switches (6) and a second pair of beam switches (7) are mounted on the first U-shaped mounting seat (4) and the second U-shaped mounting seat (5) respectively, and the first pair of beam switches (6) are located above the second pair of beam switches (7); the second pair of beam switches (7) are located above the guide side plate (103); an induction switch (8) is also mounted on the first U-shaped mounting seat (4), and a through hole for cooperating with the induction switch (8) is provided on the guide side plate (103); The impact ejector (3) is mounted on the first flat plate (101) via a fixed frame (9); the telescopic end of the impact ejector (3) is vertically downward and is located between the guide side plate (103) and the belt conveyor (2); the first U-shaped mounting seat (4) and the second U-shaped mounting seat (5) are located on both sides of the impact ejector (3); a discharge hole (105) is provided on the base (104), and the discharge hole (105) is located directly below the telescopic end of the impact ejector (3).

2. The thread rolling machine anti-length, short, thick and thin mixing mechanism according to claim 1 is characterized in that: The belt conveyor (2) comprises two toothed belt pulleys (21) rotatably mounted on the L-shaped plate (102); toothed belts (22) are mounted on the two toothed belt pulleys (21); and a servo motor (23) for driving one of the toothed belt pulleys (21) is mounted below the L-shaped plate (102).

3. The thread rolling machine anti-length, short, thick and thin mixing mechanism according to claim 2 is characterized in that: A row of anti-deviation rollers (10) in contact with the inner side of the toothed belt (22) is fixed on the upper surface of the L-shaped flat plate (102).

4. The thread rolling machine anti-length, short, thick and thin mixing mechanism according to claim 1, characterized in that: The impact ejector (3) is an electric telescopic rod or a cylinder; a rubber sleeve is installed at the telescopic end of the impact ejector (3).

5. The thread rolling machine anti-length, short, thick and thin mixing mechanism according to claim 1, characterized in that: The base (104) is an H-shaped structure; the upper ends of the two vertical plates of the base (104) are fixedly connected to the lower surface of the first flat plate (101) and the lower surface of the L-shaped flat plate (102) respectively; a strip is fixed to the lower end of the two vertical plates of the base (104); a row of threaded holes is provided on the strip; a blanking hole is provided on the horizontal plate of the base (104), and the blanking hole is located directly below the discharge hole (105).

6. The thread rolling machine anti-length, short, thick and thin mixing mechanism according to claim 1, characterized in that: Two first circular holes (11) for mounting the first pair of beam switches (6) and the second pair of beam switches (7) are respectively formed on the side walls of the first U-shaped mounting seat (4) and the second U-shaped mounting seat (5) that are separated from each other; second circular holes (12) coaxially arranged with the first circular holes (11) are respectively formed on the side walls of the first U-shaped mounting seat (4) and the second U-shaped mounting seat (5); third circular holes (13) for penetrating and mounting the induction switches (8) are formed on both walls of the first U-shaped mounting seat (4); and the third circular holes (13) are coaxially arranged with the through holes.

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