Tail cutting machine tray

Abstract

The utility model provides a tail cutting machine charging tray which comprises a charging tray body, the charging tray body is cylindrical, the charging tray body is provided with material opening grooves and through holes, the material opening grooves and the through holes are respectively arranged around the axis of the charging tray body, the material opening grooves are arranged along the side wall of the charging tray body at equal intervals, and the through holes are arranged around the axis of the charging tray body in an array mode. The material disc comprises a first material column and a second material column, and the first material column and the second material column are coaxially connected. According to the material tray, the material tray is divided into the first material column and the second material column, the first material column which is prone to abrasion can be replaced independently, and the maintenance cost and the production cost are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of fastener manufacturing technology, specifically relating to a tail-cutting machine material tray. Background Technology

[0002] In the field of fasteners, there is a type of automatic screw with a chip groove at the end, called a tail screw. When screwed into the connecting material, it can cut threads, and the chips can be discharged from the chip groove. This type of screw is convenient to connect, and can directly drill, tap, and tighten on the substrate, improving construction efficiency.

[0003] The current production process for screws with cut-off ends typically involves adding a cutting process after the thread rolling process. Specialized cutting equipment is used to cut the screw ends, creating chip grooves. During this cutting process, screws are fed one by one into a feed slot in a feed tray. The cutting device then cuts the screw ends within the feed slot. During this process, the screws need to have high stability and positioning accuracy to ensure the cutting precision. Simultaneously, the relative movement between the screw and the feed slot causes continuous friction on the feed slot, leading to wear on the feed tray and affecting the cutting precision. This necessitates replacing the worn feed tray, increasing production costs.

[0004] Therefore, the above problems urgently need to be solved. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides a tail-cutting machine tray with a split structure. When the tray is worn, the worn part can be replaced to ensure the tail-cutting accuracy and reduce production costs.

[0006] Technical Solution: To achieve the above objectives, this utility model provides a tail-cutting machine tray, including a cylindrical tray with a feed slot and through holes. The feed slot and through holes are respectively arranged around the tray's axis. The feed slot is evenly spaced along the tray's sidewall, and the through holes are arranged in an array around the tray's axis. The tray includes a first feed column and a second feed column, which are coaxially connected. This utility model is used in tail-cutting machines. Fasteners are inserted into the through holes, passing through the tray, the first feed column, and the second feed column. The tail-cutting machine tray is connected to a rotary positioning mechanism, which is an indexing plate. A feeder arranges and conveys screws to the tail-cutting machine tray. The screw heads are placed on the top surface of the first feed column, and the screw shanks are placed in the feed slot. The rotary positioning mechanism drives the tail-cutting machine tray, which rotates the screws to a cutting device. The cutting device cuts the screws placed in the feed slot, thus cutting off the tail of the screws. During the tail-cutting process, the screw tail is subjected to cutting force. Due to the lever effect, the first feed post at the screw head position experiences a relatively large force, making it prone to wear. This invention divides the feed tray into a first feed post and a second feed post, allowing for the separate replacement of the easily worn first feed post, thus reducing maintenance and production costs.

[0007] Furthermore, in the aforementioned tail-cutting machine's feed tray, the feed inlet groove includes a positioning groove and a limiting groove. The positioning groove is equally spaced around the outer wall of the first feed column, and the limiting groove is equally spaced around the outer wall of the second feed column. The positioning groove and the limiting groove are correspondingly positioned. The width of the positioning groove is smaller than that of the limiting groove, and the positioning groove and the outer diameter of the screw to be processed are correspondingly positioned. A screw typically consists of a head for applying torque and a screw rod for connection and fixation. The screw rod consists of a threaded section with external threads and a neck without threads. The neck connects to the head, and the tail tip, facilitating screw insertion, is located at the end of the threaded screw rod furthest from the head. When cutting the screw tail, the screw neck is placed in the positioning groove, which positions the neck to ensure positioning accuracy during tail cutting. The tail tip to be cut is placed in the limiting groove, which limits the screw rod to prevent deviation during cutting, ensuring tail-cutting processing accuracy and improving tail-cutting processing quality.

[0008] Furthermore, in the aforementioned tail-cutting machine's feed tray, the cross-section of the feed inlet groove is designed to be semi-circular. Designing the feed inlet groove as semi-circular increases the contact area between the screw and the feed inlet groove, preventing damage to the screw and ensuring screw quality.

[0009] Furthermore, in the aforementioned tail-cutting machine tray, a countersunk hole is provided at the end of the through hole near the first material column. The countersunk hole makes the screw head and the surface of the tail-cutting machine tray flat, improving the neatness and aesthetics of the appearance.

[0010] Furthermore, in the aforementioned tail-cutting machine's feed tray, the first feed column is provided with pin holes arranged in an array around the axis of the first feed column. The second feed column is provided with positioning holes corresponding to the pin holes. The pin holes and through holes are staggered, and positioning pins are inserted into the pin holes and the positioning pins are inserted into the positioning holes. When connecting the first and second feed columns to the rotary positioning mechanism, the first and second feed columns are positioned and connected by positioning pins inserted into the pin holes. Then, fasteners are inserted into the through holes to connect the first and second feed columns to the rotary positioning mechanism, ensuring the relative positions of the first and second feed columns and ensuring the straightness of the positioning groove and the limiting groove.

[0011] Furthermore, in the aforementioned tail-cutting machine's feed pan, the first feed column is shorter than the second feed column. This is because during the tail-cutting process, the force exerted on the first feed column closer to the screw head is greater, and this closer position is more prone to wear. Conversely, the portion closer to the second feed column is less susceptible to wear. Therefore, shortening the first feed column reduces maintenance costs.

[0012] Furthermore, in the aforementioned tail-cutting machine's feed pan, the first feed column is made of a highly wear-resistant material, selected from one of ZGMn13, ZGMn13Cr2MoRe, ZGMn18Cr2MoRe, and ZG40SiMnCrMo. Using a highly wear-resistant material for the first feed column increases its service life and extends the maintenance cycle.

[0013] Furthermore, in the aforementioned tail-cutting machine's feed pan, the outer wall of the first feed column is arrayed with square grooves. The cross-section of each groove is square, and a rectangular steel bar is placed within each groove. The rectangular steel bar and the square groove are correspondingly positioned. A positioning groove is located on the outside of the rectangular steel bar, and the positioning groove and the limiting groove are arranged in a straight line. The positioning groove is placed on the rectangular steel bar, and then the rectangular steel bar is placed within the square groove of the first feed column. When the positioning groove wears out, the rectangular steel bar is replaced, reducing maintenance costs.

[0014] Furthermore, in the aforementioned tail-cutting machine tray, a first keyway is provided on one side of the square groove, and a second keyway is provided on one side of the rectangular steel. The first and second keyways are correspondingly arranged, and a key bar is inserted into the first and second keyways. The key bar is positioned on both sides of the first and second keyways, respectively, connecting the rectangular steel to the square groove. The key bar is designed to fit the first and second keyways as a rectangular metal strip. The rectangular steel is connected to the square groove via the key bar, ensuring the connection accuracy of the rectangular steel.

[0015] As can be seen from the above technical solution, this utility model has the following beneficial effects: The material tray of the tail cutter of this utility model is divided into a first material column and a second material column, which allows for the separate replacement of the easily worn first material column, reducing maintenance and production costs. The first and second material columns are connected by a positioning pin inserted into a pin hole, improving the connection accuracy. The first material column is made of a highly wear-resistant material, which increases its service life and extends the maintenance cycle. Attached Figure Description

[0016] Figure 1 This is a front view of the material tray of the tail-cutting machine of this utility model;

[0017] Figure 2 This is a top view of Embodiment 1 of the tail-cutting machine's material tray of this utility model;

[0018] Figure 3 This is a top view of Embodiment 2 of the tail-cutting machine material tray of this utility model;

[0019] Figure 4 This is a partial enlarged view of the material tray;

[0020] Figure 5 for Figure 3 A magnified view of a portion of the image.

[0021] In the diagram: 1. Material tray, 11. Material inlet groove, 111. Positioning groove, 112. Limiting groove, 121. Countersunk hole, 113. Square groove, 114. Rectangular steel, 1141. Second keyway, 12. Through hole, 131. First keyway, 15. Pin hole, 2. First material column, 3. Second material column. Detailed Implementation

[0022] Example 1

[0023] like Figure 1-2 The diagram shows a tail-cutting machine tray, tray 1, which is cylindrical. The tray 1 has a feed inlet groove 11 and through holes 12, both arranged around the axis of the tray 1. The feed inlet groove 11 is evenly spaced along the side wall of the tray 1, and the through holes 12 are arrayed around the axis of the tray 1. The tray 1 includes a first feed column 2 and a second feed column 3, which are coaxially connected. The feed inlet groove 11 includes a positioning groove 111 and a limiting groove 112. The positioning groove 111 is evenly spaced around the outer side wall of the first feed column 2, and the limiting groove 112 is evenly spaced around the outer side wall of the second feed column 3. The positioning groove 111 and the limiting groove 112 are correspondingly arranged. The width of the positioning groove 111 is smaller than that of the limiting groove 112, and the positioning groove 111 corresponds to the outer diameter of the screw to be processed. The cross-section of the feed inlet groove 11 is semi-circular. The length of the first feed column 2 is shorter than that of the second feed column 3. The first material column 2 is made of a high wear-resistant material, which is selected from one of ZGMn13, ZGMn13Cr2MoRe, ZGMn18Cr2MoRe, and ZG40SiMnCrMo.

[0024] like Figure 2The tail-cutting machine tray shown has a countersunk hole 121 at one end of the through hole 12 near the first material column 2. The first material column 2 has pin holes 15 arranged in an array around the axis of the first material column 2. The second material column 3 has positioning holes corresponding to the pin holes 15. The pin holes 15 and the through hole 12 are staggered. A positioning pin is inserted into the pin hole 15 and the positioning pin is inserted into the positioning hole. When the first material column 2 and the second material column 3 are connected to the rotary positioning mechanism, the first material column 2 and the second material column 3 are positioned and connected by the positioning pin inserted into the pin hole 15. Then, a fastener is inserted into the through hole 12 to connect the first material column 2 and the second material column 3 to the rotary positioning mechanism, ensuring the relative position of the first material column 2 and the second material column 3, and ensuring the straightness of the positioning groove 111 and the limiting groove 112.

[0025] During the tail-cutting process, the force on the first material column 2 is greater the closer it is to the screw head, and the easier it is to wear. The part closer to the second material column 3 is less prone to wear. Setting the first material column 2 to be shorter can reduce maintenance costs.

[0026] This invention relates to a screw cutting machine. A fastener is inserted into the through hole 12, passing through the feed tray 1, the first feed column 2, and the second feed column 3. The feed tray is connected to a rotary positioning mechanism, which is an indexing plate. A feeder arranges and conveys screws to the feed tray. The screw head is placed on the top surface of the first feed column 2, and the screw neck is placed in the positioning groove 111, which positions the neck. The tip of the tail to be cut is placed in the limiting groove 112, which limits the screw and prevents it from shifting during cutting. The rotary positioning mechanism drives the feed tray, which in turn rotates the screws to the cutting device. The cutting device cuts the screws placed in the feed slot 11, thus cutting off the screw tail.

[0027] Example 2

[0028] The difference between this embodiment and Embodiment 1 is that, as Figure 3-4The cutting machine's feed tray shown has square grooves 113 arrayed on the outer wall of the first feed column 2. The square grooves 113 have a square cross-section and contain rectangular steel bars 114. The rectangular steel bars 114 and the square grooves 113 are correspondingly arranged. A positioning groove 111 is located on the outside of the rectangular steel bars 114, and the positioning groove 111 and the limiting groove 112 are arranged in a straight line. A first keyway 131 is provided on one side of the square groove 113, and a second keyway 1141 is provided on one side of the rectangular steel bars 114. The first keyway 131 and the second keyway 1141 are correspondingly arranged. Key bars are inserted into the first keyway 131 and the second keyway 1141, with key bars located on both sides of the first keyway 131 and the second keyway 1141, respectively. The key bars connect the rectangular steel bars 114 to the square grooves 113. The key bars are rectangular metal strips adapted to fit the first keyway 131 and the second keyway 1141. Positioning groove 111 is placed on rectangular steel 114, and then rectangular steel 114 is placed in square groove 113 inside the first material column 2. When positioning groove 111 is worn, rectangular steel 114 is replaced to reduce maintenance costs.

[0029] The above embodiments are exemplary and are intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A material tray for a tail-cutting machine, characterized in that: The material includes a material tray (1), which is cylindrical. The material tray (1) is provided with a material inlet groove (11) and a through hole (12). The material inlet groove (11) and the through hole (12) are respectively arranged around the axis of the material tray (1). The material inlet groove (11) is equally divided along the side wall of the material tray (1). The through hole (12) is arranged in an array around the axis of the material tray (1). The material tray (1) includes a first material column (2) and a second material column (3). The first material column (2) and the second material column (3) are coaxially connected.

2. The tail-cutting machine tray according to claim 1, characterized in that: The feed slot (11) includes a positioning slot (111) and a limiting slot (112). The positioning slot (111) is equally divided around the outer wall of the first feed column (2), and the limiting slot (112) is equally divided around the outer wall of the second feed column (3). The positioning slot (111) and the limiting slot (112) are correspondingly arranged. The width of the positioning slot (111) is smaller than that of the limiting slot (112). The positioning slot (111) and the outer diameter of the screw to be processed are correspondingly arranged.

3. The tail-cutting machine tray according to claim 1, characterized in that: The cross-section of the feed inlet groove (11) is set to be semi-circular.

4. The tail-cutting machine tray according to claim 1, characterized in that: The through hole (12) has a countersunk hole (121) at one end near the first material column (2).

5. The tail-cutting machine tray according to claim 1, characterized in that: The first material column (2) is provided with pin holes (15), and the pin holes (15) are arranged in an array around the axis of the first material column (2). The second material column (3) is provided with positioning holes corresponding to the pin holes (15). The pin holes (15) and through holes (12) are arranged alternately. A positioning pin is inserted into the pin hole (15), and the positioning pin is inserted into the positioning hole.

6. The tail-cutting machine tray according to claim 1, characterized in that: The first material column (2) is shorter than the second material column (3).

7. The tail-cutting machine tray according to claim 2, characterized in that: The first material column (2) is made of a high wear-resistant material, which is selected from one of ZGMn13, ZGMn13Cr2MoRe, ZGMn18Cr2MoRe, and ZG40SiMnCrMo.

8. The tail-cutting machine tray according to claim 7, characterized in that: The outer wall of the first material column (2) is provided with square grooves (113), the cross-section of the square grooves (113) is square, and rectangular steel (114) is provided inside the square grooves (113). The rectangular steel (114) and the square grooves (113) are respectively arranged. The positioning groove (111) is located outside the rectangular steel (114). The limiting groove (112) and the positioning groove (111) are arranged in a straight line.

9. The tail-cutting machine tray according to claim 8, characterized in that: The square groove (113) has a first keyway (131) on one side and the rectangular steel (114) has a second keyway (1141) on one side. The first keyway (131) and the second keyway (1141) are arranged correspondingly. A key bar is inserted into the first keyway (131) and the second keyway (1141). The two sides of the key bar are respectively located in the first keyway (131) and the second keyway (1141). The key bar connects the rectangular steel (114) to the square groove (113).

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