CN219766667U - Die plate die for producing square screw - Google Patents

Abstract

A dental plate die for producing square screws comprises a die body, wherein the die body comprises a tooth rubbing surface, an anti-skid part and a converging part. The tooth rubbing surface comprises a feeding part, a shaping part and a discharging part. The feeding part, the shaping part and the discharging part are provided with tooth rubbing edges, and tooth rubbing blocks are arranged on the tooth rubbing edges. A thread rolling groove is clamped between the two thread rolling edges. The converging part extends to the tooth rubbing surface in an inclined way towards the end face of the tooth rubbing surface. According to the die plate die for producing the square screw, the plurality of inclined thread twisting edges are arranged on the two die main bodies at intervals, so that the two die main bodies extrude the surfaces of the screw blanks in the opposite movement to form screw teeth. And a plurality of thread rolling blocks are arranged on the thread rolling edges at intervals, and the cross section shape of the screw embryo is changed by designing different thread rolling block shapes. The preprocessing steps in screw production are reduced, and the production efficiency is improved.

Description

Die plate die for producing square screw

Technical Field

The utility model relates to the technical field of screw machining, in particular to a dental lamina die for producing square 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. The common screw plate can only be used for processing cylindrical screw blanks, and when a screw with a square cross section needs to be processed, the screw plate needs to be processed by adopting modes such as pure manual operation, and the like, so that the processing time is long, the forming efficiency is low, and the defective rate is high. Therefore, a die plate die capable of rapidly producing square screws is required to be designed, the production efficiency is improved, and the defective rate is reduced.

Disclosure of Invention

In view of the above, the present utility model provides a die set for producing square screws to solve the above-mentioned technical problems.

The utility model provides a tooth die utensil for producing square screw, its includes two mould main parts, every the mould main part all includes one and rub a tooth face, and one sets up rub a tooth face one side the antiskid portion, and one set up rub a tooth face and be close to the portion of closing in one side of antiskid portion, rub a tooth face the length with the length of mould main part equals, just rub a tooth face width direction's both sides limit and extend to on the terminal surface of one side of mould main part length, every rub a tooth face in proper order include pan feeding portion, plastic portion and discharge part, pan feeding portion plastic portion and the discharge part all the interval is provided with the tooth arris on the tooth arris, the tooth piece is gone up to the interval is provided with a plurality of tooth pieces, from pan feeding portion one side to one side of plastic portion, pan feeding portion and the tooth piece on the plastic portion volume of tooth piece increases gradually, every rub a tooth piece the terminal surface of rubbing a tooth and is drawn a tooth piece and is extended to on one side terminal surface of mould main part length's the terminal surface, every rub a tooth piece with a tooth face and is drawn a tooth piece and is had two and is had the thread piece to be set up to two die face between the thread piece, two insert the thread pieces are pressed from top to one side face, and is set up the thread piece is pressed from top to the die face to one side, and is set up to two adjacent to the tooth piece face, and is pressed from the thread piece to be held down to the thread piece to the die face to be set up to the thread piece is pressed down to the thread piece to the face and has.

Further, the thread rolling edges are obliquely arranged on the die main body.

Further, the thread rolling edge and the anti-slip part incline towards the same side direction.

Further, the size of the tooth rubbing block on one side of the shaping part close to the discharging part is the same as that of the tooth rubbing block on the discharging part.

Further, a guiding part is arranged on one side of the converging part, which is away from the tooth rubbing surface, and the guiding part and the tooth rubbing edges incline in the same direction.

Further, the length of the slip prevention portion is less than or equal to half the length of the mold main body.

Compared with the prior art, the die for producing the square screw provided by the utility model has the advantages that the two die main bodies are provided with the plurality of inclined thread twisting edges at intervals, so that the two die main bodies squeeze the surfaces of the screw blanks in the opposite movement to form screw teeth. And a plurality of thread rolling blocks are arranged on the thread rolling edges at intervals, and the cross section shape of the screw embryo is changed by designing different thread rolling block shapes. The preprocessing steps in screw production are reduced, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a dental plate mold for producing square screws according to the present utility model.

Fig. 2 is a schematic view of a die set for producing square screws of fig. 1 from another perspective.

Fig. 3 is a schematic view of a screw structure after being processed by a die for producing a square screw of fig. 1.

Fig. 4 is a schematic cross-sectional view of the processed screw of fig. 2.

Fig. 5 is a partial enlarged view of a portion a in fig. 1.

Detailed Description

Specific embodiments of the present utility model are described in further detail below. It should be understood that the description herein of the embodiments of the utility model is not intended to limit the scope of the utility model.

Fig. 1 to 5 are schematic views showing a dental plate mold for producing square screws according to the present utility model. The mold for a rectangular section screw includes two mold bodies 10. It is conceivable that the mold for rectangular section screws also includes other functional structures, such as clamping jaws, etc., which are known to those skilled in the art and will not be described in detail herein.

Fig. 3 and 4 are schematic views of a screw 20 manufactured using the die set.

Both the mold bodies 10 include one tooth surface 11, one anti-slip portion 12 disposed on one side of the tooth surface 11, and one converging portion 13 disposed on one side of the tooth surface 11 adjacent to the anti-slip portion 12.

The length of the thread rolling surface 11 is equal to the length of the die body 10, and two lateral sides of the thread rolling surface 11 in the width direction extend to one lateral end face of the length of the die body 10.

Each tooth surface 11 sequentially comprises a feeding part 111, a shaping part 112 and a discharging part 113, wherein the feeding part 111, the shaping part 112 and the discharging part 113 are sequentially connected end to end.

The feeding part 111, the shaping part 112 and the discharging part 113 are all provided with tooth rubbing edges 114 at intervals, the tooth rubbing edges 114 are obliquely arranged on the die main body 11, and the tooth rubbing edges 114 and the anti-slip part 12 are obliquely arranged in the same side direction. So that threads of a thread-like thread are formed on the surface of a screw blank (not shown). The thread rolling ribs 114 are provided with a plurality of thread rolling blocks 115 at intervals, and the volumes of the thread rolling blocks 115 on the feeding part 111 and the shaping part 112 are gradually increased from one side of the feeding part 111 to one side of the shaping part 112. Each tooth-rubbing block 115 comprises two tooth-rubbing end faces 116, an included angle between the two tooth-rubbing end faces 116 is 150 degrees, and a tooth-rubbing groove 117 is arranged between any two adjacent tooth-rubbing ribs 114. Screw blanks (not shown) enter from the feeding part 111, pass through the shaping part 112 and finally are discharged from the discharging part 113, so that the whole tooth rolling process is completed.

So that the two die bodies 10 are gradually and completely attached to the end surfaces of the thread rolling blocks 115 on the surface of the screw embryo when the screw embryo is processed, and the shape of the screw embryo is changed. In this embodiment, the thread rolling block 115 is two end faces with an included angle of 150 degrees, which is easier to roll on the surface of the screw embryo during thread rolling, and makes the cross section of the screw embryo gradually become square during thread rolling.

The anti-slip part 12 is obliquely arranged on the die main body 10, and the anti-slip part 12 and the thread rolling rib 114 are inclined in the same direction. A plurality of anti-slip ribs 121 are arranged on the anti-slip part 12 at intervals, and one end of each anti-slip rib 121 extends to the side edge of the feeding part 111. Thereby preventing the screw blank (not shown) from slipping when rolling along the feeding portion 111 toward the discharging portion 113. The length of the anti-slip part 12 is less than or equal to half the length of the die main body 10, so that the processing time is reduced while the screw blank is ensured not to slip.

The converging portion 13 is provided on a part of the end surface of the tooth surface 11 where the tooth block 115 is not provided. The converging portion 13 extends obliquely to the tooth-rubbing surface 11 toward the end surface of the tooth-rubbing surface 11. When the two die subjects 10 are used for threading, the converging part 13 can converge the end parts of the screw blanks into a cone shape so as to enable the screw blanks to have self-tapping performance after being molded. The side of the converging portion 13 facing away from the thread rolling surface 11 is provided with a guiding portion 131, and the guiding portion 131 and the thread rolling rib 114 incline in the same direction, so that the die main body 10 can be gradually lifted when sliding along external equipment, and the screw tooth height formed on the screw embryo is increased.

In use, the tooth surfaces 11 of the two die bodies 10 are arranged opposite to each other. And the end surfaces of the two die main bodies 10 close to the feeding part 111 are overlapped in a staggered way. A screw blank to be processed is clamped between the two feeding parts 11 in a rotating manner. Then, the two die bodies 10 are caused to apply pressure to the surfaces of the screw blanks by an external device, and the two die bodies 10 are pushed to move toward each other. During the movement, the thread-forming ridges 114 gradually form threads on the surface of the screw blank. The thread rolling block 115, which is of a small to large size, gradually extrudes the cross section of the screw embryo from circular to square.

Compared with the prior art, the die for producing the square screw provided by the utility model has the advantages that the plurality of inclined thread rolling ribs 114 are arranged on the two die main bodies 10 at intervals, so that the surfaces of the screw blanks are extruded to form screw teeth when the two die main bodies 10 move in opposite directions. And a plurality of thread rolling blocks 115 are arranged on the thread rolling ridges 114 at intervals, and the cross-sectional shape of the screw embryo is changed by designing different shapes of the thread rolling blocks 115. The preprocessing steps in screw production are reduced, and the production efficiency is improved.

The above is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model, and any modifications, equivalent substitutions or improvements within the spirit of the present utility model are intended to be covered by the claims of the present utility model.

Claims (6)

1. A dental plate die for producing square screws, characterized in that: the die set for producing the square screw comprises two die main bodies, each die main body comprises a thread rolling surface, an anti-slip part arranged on one side of the thread rolling surface, and a binding part arranged on one side of the thread rolling surface, wherein the length of the thread rolling surface is equal to that of the die main body, two side edges in the width direction of the thread rolling surface extend to one side end surface of the length of the die main body, each thread rolling surface sequentially comprises a feeding part, a shaping part and a discharging part, the feeding part, the shaping part and the discharging part are connected end to end in sequence, thread rolling edges are arranged on the feeding part, the shaping part and the discharging part at intervals, a plurality of tooth blocks are arranged on the thread rolling edges at intervals, the volumes of the tooth blocks on the feeding part, the shaping part and the feeding part are gradually increased from one side of the feeding part to one side of the die main body, each tooth rolling block comprises two thread rolling blocks, the two thread rolling blocks are arranged between two adjacent thread rolling surfaces, the thread rolling blocks are arranged between two adjacent thread rolling surfaces, and the thread rolling blocks are arranged at intervals between two thread rolling surfaces, and the thread rolling blocks are arranged between two thread rolling surfaces between two adjacent thread rolling surfaces, and the thread rolling bodies are arranged at intervals, and the thread rolling surfaces are arranged between two thread rolling surfaces between two thread rolling bodies.

2. The dental plate mold for producing square screws according to claim 1, wherein: the thread rolling edges are obliquely arranged on the die main body.

3. The dental plate mold for producing square screws according to claim 1, wherein: the thread rolling edges and the anti-slip parts incline towards the same side direction.

4. The dental plate mold for producing square screws according to claim 1, wherein: the size of the tooth rubbing block of one side of the shaping part, which is close to the discharging part, is the same as that of the tooth rubbing block on the discharging part.

5. The dental plate mold for producing square screws according to claim 1, wherein: one side of the converging part, which is away from the tooth rubbing surface, is provided with a guide part, and the guide part and the tooth rubbing edge incline in the same direction.

6. The dental plate mold for producing square screws according to claim 1, wherein: the length of the anti-slip part is less than or equal to half of the length of the die main body.