CN202479641U

CN202479641U - Thread plate

Info

Publication number: CN202479641U
Application number: CN2012200992520U
Authority: CN
Inventors: 侯金麟
Original assignee: TAICANG CHENGXIANG TOWN LIANJIN HARDWARE SALES DEPARTMENT
Current assignee: TAICANG CHENGXIANG TOWN LIANJIN HARDWARE SALES DEPARTMENT
Priority date: 2012-03-16
Filing date: 2012-03-16
Publication date: 2012-10-10
Anticipated expiration: 2022-03-16

Abstract

The utility model discloses a thread plate, which is provided with a first end, a second end and a thread rolling surface located between the first end and the second end, wherein a direction (pointing to the second end) of the first end is defined as a thread rolling direction; the thread rolling surface is composed of a plurality of parallel concave and convex lines, wherein a wear layer is formed on the thread rolling surface. Compared with the prior art, the thread plate has the advantages that the wear layer is added so that the thread plate is relatively wearable and abrasion of the thread plate caused in the screw blank extrusion molding process; and the service life and the thread rolling capability of the thread plate are further improved; an the quality of formed screws is improved.

Description

A kind of dental lamina

Technical field

The utility model relates to a kind of screw thread cutting tool, and particularly a kind of increase wearing layer reduces wear, and increases the dental lamina formula screw thread cutting tool in service life.

Background technology

Make the dental lamina of screw or screw for known being used to, because its constantly friction at work, and the wearability on surface itself is not high; After through long friction; Dental lamina begins wearing and tearing, in the process through the extrusion modling of long-term screw stock, produces wearing and tearing, reduces the service life of dental lamina; But also the screw thread regularity that screw surface is formed descends, even makes the screw thread of screw incomplete and produce inferior goods.

The utility model content

The purpose of the utility model is to provide a kind of wearability relatively good, the dental lamina that can use for a long time.

To achieve these goals, the utility model adopts following technical scheme:

A kind of dental lamina; Have first end, second end and the threading face between said first end and said second end; The direction that said first end points to this second end is defined as the threading direction; Said threading face is made up of some parallel concave convex textures, it is characterized in that, said threading face is provided with a wearing layer.

In some embodiments, said wearing layer is a kind of rigid wolfram steel, diamond lattic structure.Thus, can have more wear-resisting effect.

In some embodiments, also convex with a spine on the said threading face, said spine extends along this threading direction, and said spine is provided with a summit, and said spine tiltedly extends below to said first end from said summit.Thus, can have the convenient effect that changes the screw terminal shape.

In some embodiments, be concaved with a discharge groove on the said threading face, said discharge groove is positioned at a side of said spine, forms a cut surface between said spine and the said discharge groove.The effect that can have thus, convenient cutting screw waste material.

In some embodiments, also be provided with the concave of parallel and said first end on the concave convex texture of said threading face near a side of first end.The effect that can have thus, convenient threading.

In some embodiments, said spine is one trapezoidal.Thus, can have mild the minimizing and highly reduce the effect that in the extrusion modling process, produces wearing and tearing.

In some embodiments, thus, can have, make the more neat effect of screw thread that rubs.

The advantage that the utility model is compared prior art is: increased wearing layer; The structure that makes dental lamina itself is under the protection of this wearing layer; Have more wear-resisting effect, can reduce the wearing and tearing that dental lamina produces in the process of screw stock extrusion modling, further improve the service life of dental lamina; Threading amount, and the quality of shaped screw.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is made further description explanation.

A kind of dental lamina as shown in Figure 1; Comprise first end 1, second end 2 and the threading face 3 between said first end 1 and said second end 2; The direction that said first end 1 points to this second end 2 is defined as the threading direction, and said threading face 3 is made up of some parallel concave convex textures 9.Because in use said dental lamina is easy to be worn in continuous friction, so said threading face is provided with a wearing layer 4.Because wolfram steel and diamond all belong to carbide alloy in known alloy; Have hardness height, wear-resisting, a series of premium properties such as the good toughness of intensity is better, heat-resisting, corrosion-resistant; Particularly high rigidity and wearability are so the high-abrasive material of locating is selected the very high materials of abrasion resistance such as wolfram steel, diamond for use.Because present screw divides multiple shapes such as pointed screw, flat head screw; So, also convexing with a spine 5 on the said threading face, said spine 5 extends along this threading direction; Said spine 5 is provided with a summit 6, and said spine 5 tiltedly extends below to said first end 1 from said summit 6.In order to cut the afterbody of screw; And rub screw with the hands get off waste material and arrange easily from dental lamina; So be concaved with a discharge groove 7 on the said threading face, said discharge groove 7 is positioned at a side of said spine 5, forms a cut surface 8 between said spine 5 and the said discharge groove 7.For the convenient screw thread that rubs ideal effect, so also be provided with the concave 10 of parallel and said first end on the concave convex texture 9 of said threading face 3 near a side of first end 1.In order to reduce height gently and to reduce the effect that in the extrusion modling process, produces wearing and tearing, it is one trapezoidal that said spine is.

Above-described only is the optimal way of the utility model; Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; Can also make some distortion and improvement, these also should be regarded as within the protection domain of the utility model.

Claims

1. dental lamina; Have first end, second end and the threading face between said first end and said second end; The direction that said first end points to this second end is defined as the threading direction; Said threading face is made up of some parallel concave convex textures, it is characterized in that, said threading face is provided with a wearing layer.

2. a kind of dental lamina according to claim 1 is characterized in that, said wearing layer is rigid wolfram steel, diamond material.

3. a kind of dental lamina according to claim 2 is characterized in that, also convexes with a spine on the said threading face, and said spine extends along this threading direction, and said spine is provided with a summit, and said spine tiltedly extends below to said first end from said summit.

4. a kind of dental lamina according to claim 3 is characterized in that, is concaved with a discharge groove on the said threading face, and said discharge groove is positioned at a side of said spine, forms a cut surface between said spine and the said discharge groove.

5. a kind of dental lamina according to claim 4 is characterized in that, also is provided with the concave of parallel and said first end on the concave convex texture of said threading face near a side of first end.

6. a kind of dental lamina according to claim 5 is characterized in that, it is one trapezoidal that said spine is.