TWM569261U - Thread rolling dies plate - Google Patents

Abstract

The screw squeegee set of the present invention mainly comprises a plurality of spaced ribs arranged on each of the gingival plates, and a plurality of first rib ribs disposed on the formed ridges, and the plurality of ribs are formed in any two shapes. a second rib rib between the ridges, a plurality of concave ribs disposed between the teeth of the two formed ridges, and the first and second rib teeth are arranged in a staggered manner so that the screw dies The screws formed by the group have relative threads, so that the screws can effectively push and cut the fibers of the object to reduce the locking resistance, and at the same time avoid the cracking of the object, or the screw disintegration occurs. Moreover, the fiber density of the object is also changed by timely pushing, so that the screw further forms a tighter meshing effect with the object, and a better locking effect is obtained.

Description

Screw squeegee set

The present invention relates to a squeegee structure for use in the manufacture of a screw, in particular to a screw squeegee set which effectively reduces the resistance and breaks the fibers of the object while preventing the cracking of the object.

Check that the screw is one of the commonly used components for assembly or fixing between objects. Due to the large demand for the use of screws, it is mass-produced through machining tools to reduce the production cost, and the manufacture of screws is mainly to cut the metal wire first. Cutting into a billet of a certain length, and forming a screw head at one end of the billet, and then introducing the billet formed with the screw head into the machine tool in sequence, through the set of the jaws in the machine tool The billet is clamped between the two jaw plates of the set of dentition plates, and the relative dents formed on the dentition plates are matched by the squeezing and pressing process of the squeegee plates. Then, a plurality of corresponding threads are twisted on the surface of the blank to form a finished screw.

The squeegee set can use the striate on the squeegee to make a relative thread on the surface of the blank. However, it generally has only a single ridge, so that the formed screw thread is too monotonous and suitable for use. In addition, the thread cannot effectively destroy the fibers of the object, so that the fiber is easily entangled on the screw, which further leads to an increase in the locking resistance. In addition, the chips generated during the drilling and locking process are more likely to be hindered by the fiber and cannot be timely. Discharged outward, so that the screw can not continue to screw in, which increases the difficulty of locking. If the screw continues to drill down the object, it may cause damage, passivation or breakage of the screw. It may also cause the object to crack, which may result in a poor locking effect. Moreover, the screw cannot be effectively engaged with the object, so that the screw is prone to loosening. When the screw is pulled or vibrated by external force, It is very easy to cause the screw to loosen, shake or fall off, which leads to the lack of locking effect of the screw, which needs to be improved.

Therefore, the purpose of the present invention is to provide a set of screw dies which are formed by screws which effectively reduce the locking resistance, at the same time break the fibers of the object, and prevent the material from cracking.

Therefore, the new screw squeegee set comprises two oppositely disposed squeegees, and each of the squeegees has a shaft forming portion, a tail forming portion adjacent to the shaft forming portion, and respectively formed The introduction end and the molding end of the two ends of the clamping plate; wherein the shaft forming portion has a plurality of forming ridges arranged at an oblique interval, and the plurality of first rib ribs formed on the forming ridges are plurally formed a second rib rib between the two formed ridges, and a plurality of dents recessed between the two embossed ridges, and the first rib ribs and the second rib teeth are The staggered arrangement is such that the screws formed by the set of screw jaws respectively have a plurality of corresponding forming threads, first ribs and second ribs, so that the first and second ribs can be used Pushing up the uncut and partially entangled object fibers, and performing the chopping damage by the forming threads, thereby effectively reducing the locking resistance, and avoiding the cracking of the object, or the screwing of the screw, At the same time, the fiber density of the object is also subject to the first and the first And pushing rib timely change, in order to facilitate a further object of the screw is formed with the tighter engagement effect.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.

Referring to FIG. 1 , in a first preferred embodiment of the present invention, the screw set 1 includes two corresponding squeegees 11 . Referring to FIG. 2 , the dies are provided. The length of 11 can be set to be equal length or unequal length according to actual needs, and the lengths of the slabs 11 are set to be unequal lengths, that is, the length of one of the squeegees 11 is smaller than the other fangs. The length of the plate 11 is taken as an example; and each of the dies 11 has a shaft forming portion 111, a tail forming portion 112 adjacent to the shaft forming portion 111, and two ends formed at the ends of the dies 111, respectively. The introduction end 113 and the molding end 114.

Continuing with the foregoing, the shaft forming portion 111 has a plurality of molding ribs 1111 arranged at an oblique interval, and a plurality of first rib ribs 1112 recessed on the molding ribs 1111 and spaced apart from each other, the plurality of recesses a second rib rib 1113 disposed between the two embossed ribs 1111 and spaced apart from each other, and a plurality of alveolar grooves 1114 respectively formed between the two embossed ribs 1111, and the first rib ribs 1112 And the second ribs 1113 are arranged in a staggered manner. Further, the molding ribs 1111 are located at the center of the squeegee 11 and have the longest length, and are respectively tapered toward the forming end 114 and the introduction end 113. The tail forming end 112 has a flat surface 1121 extending from the leading end 113 toward the forming end 114, a shearing surface 1122 extending from the forming end 114 toward the leading end 113, and a plane 1121 formed thereon. A cutting opening 1123 at the junction with the shear plane 1122.

Referring to Figures 1 and 2, when the screw set 1 is used, it is mounted on a screw boring machine (not shown), and the blanks which have been cut into predetermined lengths are sequentially introduced. In the screw boring machine, the squeegee 11 of the screw squeegee set is then clamped between the blanks for performing a squeegee operation, the blank is first entered by the introduction end 113, and is subjected to The jaws 11 are swayed to perform the squeezing of the squeezing teeth, and at the same time, after the dentition is completed, the forming end 115 is led out, so that the forming operation of the screw 3 is completed; therefore, the squeegees 11 are respectively provided. The molding ribs 1111, the first rib ribs 1112, the second rib ribs 1113, and the alveolar grooves 1114 are matched with reference to FIG. 4 so that the formed screw 3 has a rod body. 31. A screw head 32 disposed at one end of the rod body 31, and a tail portion 33 disposed at the other end of the rod body 31. The rod body 31 is provided with a plurality of spiral rings disposed on the rod body 31. a molding thread 311, a plurality of first ribs 312 disposed between the two forming threads 311 and spaced apart from the rod body 31, and a plurality of intervals provided on the rod body 31 And passing through the second ribs 313 of the forming threads 311, and the first ribs 312 and the second ribs 313 are alternately formed on both sides of the rod body 31; The rib 312 and the second rib 313 not only contribute to the initial reaming operation of the drill, but also can push the part of the uncut material wrapped around the rod 31 (not shown). And the forming thread 311 further cuts and breaks the fiber to effectively reduce the locking resistance, and avoid the cracking of the object, or the screw 3 is broken, and the fiber density of the object is also affected by the same. The first rib 312 and the second rib 313 are appropriately pushed up to change, so that the screw 3 further forms a tighter engagement with the object, thereby achieving a better locking effect.

Referring to FIG. 4 and FIG. 5, the second preferred embodiment of the present invention still includes the member described in the previous embodiment, and the embodiment is particularly characterized by: a shaft forming portion of a squeegee 11 111 is formed with three incision ribs 1115 adjacent to the forming end 114, and the nick lines 1115 are tangential to the partially formed ribs 1111, the first rib ribs 1112, the second rib ribs 1113, and the alveolar 1114. In order to form the slits 314 on each of the forming threads 311; the slits 314 can not only effectively assist the forming threads 311 to cut and destroy the fibers of the object, thereby achieving double turning effect and effectively lifting the locking. In addition to the speed, it can also accommodate some of the chips that are too late to be discharged, so as to effectively avoid the increase of the locking resistance, the screw 3 is broken, or the object is cracked, and a better locking effect is obtained.

In summary, the screw type of the present type is provided by the tooth surfaces, the first rib, the second rib, the alveolar, and the like. The screw can effectively ream the hole in the initial stage of the drill lock, and at the same time, the fiber of the object can be cut and cut, so as to effectively reduce the locking resistance, thereby avoiding the cracking of the object or the disintegration of the screw due to the increase of the locking resistance. Moreover, the fiber density of the object is changed by the pushing of the first and second ribs, so that the screw and the object form a tighter meshing effect, thereby achieving a better locking effect.

However, the above description is only for the purpose of illustrating the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the new specification. All should remain within the scope of this new patent.

(this creation)

1‧‧‧screw squeegee set

11‧‧‧ tooth plate

111‧‧‧Shaft forming department

112‧‧‧Tail body molding department

113‧‧‧Introduction

114‧‧‧Formed end

1111‧‧‧Molded teeth

1112‧‧‧First ribbed pattern

1113‧‧‧second ribbed pattern

1114‧‧‧ alveolar

1115‧‧‧cutting

1121‧‧ plane

1122‧‧‧Shear

1123‧‧‧cutting port

3‧‧‧ screws

31‧‧‧ rod body

32‧‧‧ screw head

33‧‧‧Tail body

311‧‧‧Molding thread

312‧‧‧First rib

313‧‧‧second rib

314‧‧‧ incision

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of a first preferred embodiment of the present invention. Figure 2 is a schematic view of the forming screw of the first preferred embodiment. Figure 3 is a schematic illustration of a second preferred embodiment of the present invention. Figure 4 is a schematic view of the forming screw of the second preferred embodiment.

Claims (5)

A set of screw dies, comprising two corresponding dies, each of the dies having a shaft forming portion, a tail forming portion adjacent to the shaft forming portion, and respectively formed on the shaft An introduction end and a molding end of the two ends of the squeegee; wherein the shaft forming portion has a plurality of forming ridges arranged at an oblique interval, and the plurality of first embossings formed on the forming ridges and spaced apart from each other a rib tooth pattern, a plurality of second rib ribs formed between the two embossed ridges and spaced apart from each other, and a plurality of sipe formed between the two embossed ridges, and the first ribs The pattern is arranged in a staggered manner with the second rib ribs. Further, the tail forming end has a plane extending from the introduction end toward the forming end, and the forming end is gradually extended toward the introduction end. a shearing surface and a shearing opening formed at the plane where the shearing surface meets. The screw jaw set according to claim 1, wherein the length of one of the jaws is longer than the length of the other jaw. The screw squeegee set according to claim 1, wherein the screw formed by the screw squeegee set comprises a rod body, a screw head disposed at one end of the rod body, and a screw body disposed at the rod body a tail portion of the other end of the rod body; wherein the rod body is provided with a forming thread of a plurality of spiral rings disposed on the rod body, and a plurality of first ribs disposed between the two forming threads and spaced apart from the rod body And a plurality of second ribs disposed on the rod and passing through the forming threads. The screw squeegee set according to the first aspect of the invention, wherein the shaft forming portion of one of the dents is formed with three notched ridges adjacent to the forming end, and the dicing and partial embossing are formed. The first rib rib, the second rib rib and the alveolar tangent. The screw squeegee set according to claim 4, wherein the screw formed by the screw squeegee set comprises a rod body, a screw head disposed at one end of the rod body, and a screw body disposed at the rod body a tail portion of the other end of the rod body; wherein the rod body is provided with a forming thread of a plurality of spiral rings disposed on the rod body, and a plurality of first ribs disposed between the two forming threads and spaced apart from the rod body And a plurality of second ribs disposed on the rod body and passing through the forming threads, and three slits formed in each of the forming threads.