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CN-224222625-U - Tooth rubbing plate for producing self-tapping chip removing screw

CN224222625UCN 224222625 UCN224222625 UCN 224222625UCN-224222625-U

Abstract

A thread rolling plate for producing self-tapping chip removing screws comprises a main thread rolling plate and an auxiliary thread rolling plate. The main dental plate and the auxiliary dental plate comprise a tooth twisting unit, a chip removing unit, a locking unit, a chip removing part and a converging part, the tooth rubbing unit comprises a tooth rubbing unit, the chip removing unit comprises chip removing protruding blocks, and the tooth rubbing unit comprises a feeding part, a shaping part and a discharging part. The screw rod is sequentially inserted into the screw surface through the feeding part, the position of the screw is initially fixed, the shaping part is used for expanding the groove, and the end part of the screw is tapered through the converging part while expanding the groove, so that the screw has self-tapping performance. The chip removing convex blocks are arranged between the two thread rolling edges, chip removing grooves are formed on the threads, chip removing capacity of the screws is improved, and the locking units are arranged on the thread rolling edges, so that stability of the screws after being screwed in is improved. The screw produced by the dental lamina can be molded in sequence, has high self-tapping performance and good chip removal performance, and has higher practicability.

Inventors

  • CHEN JISHENG

Assignees

  • 台牙牙板模具(嘉兴)有限公司

Dates

Publication Date
20260512
Application Date
20250527

Claims (8)

  1. 1. A tooth-rubbing plate for producing self-tapping chip-removing screws is characterized by comprising a main tooth-rubbing plate and an auxiliary tooth-rubbing plate, wherein the main tooth-rubbing plate and the auxiliary tooth-rubbing plate both comprise a tooth-rubbing unit, a chip-removing unit arranged on the tooth-rubbing unit, locking units arranged on two sides of the chip-removing unit, a chip-removing part obliquely arranged on one side of the length of the main tooth-rubbing plate and one side of the auxiliary tooth-rubbing plate, and a converging part arranged between the chip-removing part and the tooth-rubbing unit, the tooth-rubbing unit comprises a plurality of tooth-rubbing projections obliquely arranged between the two teeth, the tooth-rubbing angles and the oblique directions of the main tooth-rubbing plate and the auxiliary tooth-rubbing plate are the same, the tooth-rubbing unit arranged on the main tooth-rubbing plate also comprises a feeding part, a shaping part and a discharging part, the top end area of the tooth gradually increases along the feeding part, the tooth-rubbing part is arranged in the middle of the tooth-rubbing plate, and the tooth-rubbing part is arranged in the tooth-rubbing plate, and the tooth-rubbing part is gradually clamped with the main tooth-rubbing plate.
  2. 2. The tapping plate for producing a self-tapping screw according to claim 1, wherein the length of the main dental plate is smaller than the length of the auxiliary dental plate.
  3. 3. The tapping plate for producing a self-tapping screw according to claim 1, wherein each of said tapping teeth extends along the length of said main plate and said auxiliary plate.
  4. 4. The thread rolling die for producing self-tapping chip screws according to claim 1, wherein a cross section of one end of the thread rolling teeth near the feeding portion is triangular.
  5. 5. The thread rolling die for producing self-tapping chip screws according to claim 1, wherein a cross section of one end of the thread rolling die near the discharging part is trapezoid.
  6. 6. The thread rolling die for producing self-tapping chip screws according to claim 1, wherein said chip removing unit is provided on said shaping portion and the discharging portion.
  7. 7. The thread rolling die for producing self-tapping screws according to claim 1, wherein said chip removing protrusions gradually increase along said shaping portion toward said discharging portion.
  8. 8. The thread rolling die for producing self-tapping screws according to claim 1, wherein each of the thread rolling teeth comprises an extrusion surface, and two thread rolling ridges disposed on both sides of the extrusion surface, and the locking unit comprises two locking grooves disposed corresponding to the thread rolling ridges.

Description

Tooth rubbing plate for producing self-tapping chip removing screw Technical Field The utility model relates to the technical field of screw dies, in particular to a thread rolling plate for producing self-tapping chip removing screws. Background The screw plate, two square templates used on the screw machine, is divided into two, one is long and one is short, and the screw plate is a die for extruding and forming screw threads on screw light nails, and is the most commonly used thread tool for processing screws and bolts in the standard fastener industry. Commonly used screw dies are generally capable of simultaneously processing threads of one specification. With the improvement of the assembly process, the specification of the screw is also improved. And the screw with two specifications of screw teeth simultaneously is derived, and the screw is like the screw with conventional screw teeth and anti-loosening screw teeth, wherein the conventional screw teeth are used for self-tapping, the anti-loosening screw teeth are used for avoiding falling, but the existing production process mostly needs to rub screw teeth with one specification on a screw blank, and the screw teeth with the second specification need to be processed and formed by a processing staff in a turning mode, so that the operation difficulty is high, the production efficiency is low, and the defective product rate is high. Disclosure of utility model In view of the above, the present utility model provides a tapping plate for producing self-tapping chip removing screws, so as to solve the above technical problems. The utility model provides a produce tooth-rubbing board of self-tapping chip-removing screw, its includes a main tooth-rubbing board and an vice tooth-rubbing board, main tooth-rubbing board and vice tooth-rubbing board all include one rub tooth unit, one set up the chip-rubbing unit on the tooth-rubbing unit, one set up the locking unit of chip-rubbing unit both sides, one slope set up in main tooth-rubbing board and vice tooth-rubbing board length side edge chip-removing portion, and one set up in chip-rubbing portion with rub tooth-rubbing unit between receive beam portion, rub tooth-rubbing unit includes a plurality of slope setting rub tooth, the chip-rubbing unit includes one set up two rub tooth between the chip-rubbing lug that rub tooth-rubbing is the same with the slope angle and incline direction on the tooth-rubbing board, set up on the main tooth-rubbing board still include a pan feeding portion, a portion, and a discharge portion, the top area of the tooth-rubbing gradually increases towards the discharge portion, and a set up on the vice tooth-rubbing board include one set up in the tooth-rubbing unit with the tooth-rubbing board is located in the main tooth-rubbing board is with the face to the tooth-rubbing board is set up to the face in the centre. Further, the length of the primary dental plate is less than the length of the secondary dental plate. Further, each of the teeth-rubbing portions extends along a longitudinal direction of the main dental plate and the auxiliary dental plate. Further, the cross section of the rubbing teeth near one end of the feeding part is triangular. Further, the cross section of the rubbing teeth near one end of the discharging part is trapezoid. Further, the chip removal unit is arranged on the shaping part and the discharging part. Further, the chip removal protruding blocks gradually increase towards the discharging part along the shaping part. Further, the locking unit comprises two locking grooves correspondingly arranged on the tooth twisting edges. Compared with the prior art, the thread rolling plate for producing the self-tapping chip removing screw provided by the utility model sequentially passes through the feeding part to be embedded into the surface of the screw on the screw rod, the position of the screw is initially fixed, the shaping part is used for expanding the groove, and the end part of the screw is tapered through the converging part while expanding the groove, so that the self-tapping performance is realized. The chip removing convex blocks are arranged between the two thread rolling edges, chip removing grooves are formed on the threads, chip removing capacity of the screws is improved, and the locking units are arranged on the thread rolling edges, so that stability of the screws after being screwed in is improved. The screw produced by the dental lamina can be molded in sequence, has high self-tapping performance and good chip removal performance, and has higher practicability. Drawings Fig. 1 is a schematic view of a structure of a tapping plate for producing a self-tapping chip removing screw according to the present utility model. Fig. 2 is a partial enlarged view of a portion a of fig. 1. Fig. 3 is a schematic view of the screw produced by the tapping plate of fig. 1 for producing a self-tapping chip screw. Detailed Description Specific embodiments of