CN2346980Y

CN2346980Y - Integrally-shaped inner tooth nail

Info

Publication number: CN2346980Y
Application number: CN 98203178
Authority: CN
Inventors: 陈日发
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-04-07
Filing date: 1998-04-07
Publication date: 1999-11-03
Anticipated expiration: 2008-04-07

Abstract

The utility model relates to an integrally-shaped inner tooth nail, which is integration structure formed by wires directly passing through a plurality of times of rapid stampings. The upper segment is a tooth barrel with internal thread, and the lower section is a long and thin nail body which extends to the bottom end of the tooth barrel. The adjoin point of the tooth barrel and the nail body is in cone-shaped converging shape, which makes the bottom of the tooth barrel in conical. The utility model is firmly and durable, and the nail body is without loosening, deflection phenomenon, etc., because of the integration profiled structural form. Compared with far traditional combined type inner tooth nail, the utility model has the advantages of simple and rapid process, low cost and high efficiency because manufacturing course belongs to rapid punching work.

Description

Integrally formed inner tooth nail

The utility model relates to a kind of inner tooth nail that is widely used in the civil construction industry, refers to a kind of integrally formed inner tooth nail structure especially,

See also Fig. 1; 2; it is the inner tooth nail commonly used that is widely used in the civil construction industry for a kind of; desire row ceiling suspension on concrete; chase; pipeline; when reaching other device; usually can use this upper end section to be tooth tube 11; the lower end section is the combined type inner tooth nail 10 of nail body 12; this combined type inner tooth nail 10 is with gunpowder nail hitting rifle it to be hammered into wall; its equipment or device spiral shell that has the tooth tube 11 of internal thread A and supply the desire row to assemble of mat is established on it again; suitable convenience in the utilization; practical; and widely the Civil Engineering Construction dealer adopts; yet; this traditional combined type inner tooth nail 10 is for fear of structural design own and manufacture process thereof, and has following shortcoming to need improvement badly:

1, at first, aspect manufacturing process, the tooth tube of these combined type inner tooth nails 10 11 is to make respectively with nail body 12, and then in addition punching press combination; Wherein, the making of relevant tooth tube 11, be as shown in Figure 3, at first cut the wire rod of predetermined length, from top to bottom be drilled with consistent hole 111 in the axle center of this wire rod then, with the thicker drill bit of bore this perforation 111 is enlarged again afterwards but do not penetrate, so that this wire rod forms the cylindrical shell 112 that an inner hollow and bottom have a perforation B, at last again in this cylindrical shell 112 inner car system internal screw thread A, promptly finish this tooth tube 11, on the other hand, the making of relevant nail body 12, be the same with the practice of general nail, be the nail embryo 12A that goes out to have ailhead earlier with the impact style impact extrusion, and then charge and attack out the nail point, but on its Mould design, must make it can be shaped a Packing Section 121 especially in the section place, top of nail body 12, so, when dashing group tooth tube 11 with nail body 12, a Packing Section 121 and whole nail body 12 packings are fixed in the perforation B of tooth tube 11 by this, to finish a combined type inner tooth nail 10, yet, with regard to a manufacturing process, essential through boring, the car tooth, repeatedly complicated processing operations such as punching press combination, the trouble that seems suitable is bothersome, and different processing procedures is the more the time, the reject ratio of the product height of will healing, working efficiency also phase shape reduce, and cause having production capacity eventually, drawback under the low and cost of production aspect of quality is in not.

2, the brought forward item is described, because tooth tube 11 is not an integrative-structure with nail body 12, but after being processed into respectively, just in addition punching press combination, so, the anxiety of own deficiency on its structural strength, that is between tooth tube 11 and the nail body 12, tend to take place situation loosening or that get loose, and need improvement badly.

3, brought forward 1,2 described, when dashing group tooth tube 11 with nail body 12, and can't guarantee to follow closely the central point that body 12 can just be positioned at tooth tube 11, make nail body 12 that the anxiety of deflection will be arranged and be unfavorable for the carrying out of nail hitting operation, further it, as long as the nail body 12 of combined type inner tooth nail 10 has a little deflection, powder shotgun is pulled the trigger this nail body when being the combined type inner tooth nail 10 of deflection, this combined type inner tooth nail 10 just can't directly be driven into, contain admant when running into, during the wall of reinforcing bar, combined type inner tooth nail 10 not only can't hammer into, and will go out that (powder shotgun does not grip when appropriate, and kick will make the outlet of powder shotgun temporarily from wall, at this moment by wall bounce-back, the inner tooth nail that does not hammer into smoothly will rebound out in this moment), and injure operator easily.

According to the above, Yi Zhi, though common combinations formula inner tooth nail adopts because of practical, convenient widely industry, only its cost of production can't reduce because of its complicated processing procedure, and also remaining the nail body in configuration aspects easily becomes flexible, gets loose and follow closely the not positive shortcoming of body, therefore, how providing a kind of new-type inner tooth nail structure that solves aforementioned difficulties point, is to be the ardent hope of dealer institute.

Because above-mentioned common combinations formula inner tooth nail both deposit drawback, this creator grasps the manufacturing experience of its more than ten years and actively thinks to grind solution, and after constantly studying and revising, then release a kind of inner tooth nail with integrally formed structure, it mainly is that the cooperation array is provided with the mould of predetermined die cavity and dashes rod, and in the mode of punching press for several times fast, with a wire rod that cuts into predetermined length, strike out epimere and be thick ailhead and hypomere is the form of elongated nail body, be slightly less than the rod that dashes of ailhead then with a drift external diameter, this ailhead impact extrusion is become cylinder-shaped, to obtain an epimere is cylindrical shell, hypomere is the nail embryo of nail body, establish internal screw thread in the inner barrel car more at last, and it is pointed to follow closely the terminal punching out one-tenth of body nail, promptly finishes a tooth tube and follows closely as integrally formed inner tooth nail, and its demand purpose is to be:

1, provides a kind of low cost, high efficiency integrally formed inner tooth nail innovation processing procedure;

2, provide a kind of anxiety and durable integrally formed inner tooth nail structure firm in structure that body does not have deflection of following closely;

The purpose of this utility model is achieved in that

A kind of integrally formed inner tooth nail, be to be mainly one by the direct integrative-structure of wire rod through for several times being stamped to form shape fast, its epimere is that tooth tube, the hypomere that car is provided with internal thread is the elongated nail body that extends tooth tube bottom, and tooth tube and adjacent place of following closely body and the tapered shape of bringing together make the tooth tube bottom be coniform; Integrally formed by this structural form and make it have sturdy and durable and nail body non-loosening, get loose and benefit such as skewness.

The utility model has following advantage compared with prior art:

1, because all processing procedure of the present utility model, only relate to a stamping press and a train tooth operation fast for several times, and need not operations such as any boring, punching press combination, so aspect whole manufacturing process far beyond the box-like inner tooth nail of traditional group simplify, many rapidly, and make it have Practical Benefit such as speed of production is fast, reject ratio is low, production capacity height relatively, can significantly reduce the integral production cost.

2, be the inner tooth nail that is one of the forming by the utility model, because of its nail body and tooth tube are the structures that is one of the forming, do not follow closely the anxiety that body is loosening or get loose and have, so its structural strength is superior than the traditional type pin assembly, and, the die cavity form of the press tool in all processing procedures of this inner tooth nail and size are all controlled appropriate and quite accurate in advance, therefore, the finished product that is produced, its nail body partly is the anxiety that can guarantee not have in the axle center, center of tooth tube deflection, thus, be many and do not have misgivings that play prick and operator than common combinations formula inner tooth nail safety.

In sum, this integrally formed inner tooth nail provided by the utility model with better structural strength and simple and easy quick processing procedure, because of its processing procedure is more simplified, rapidly far beyond the box-like inner tooth nail of traditional group, the value so its cost of production is significantly reduced on the dark tool industry.

Below, for enabling to understand major technique content of the present utility model and benefit further, cooperate following accompanying drawing for an embodiment now and describe in detail as the back:

Fig. 1: the three-dimensional exploded view that is existing combined type inner tooth nail;

Fig. 2: the cross-section structure that is existing combined type inner tooth nail;

Fig. 3: the manufacturing process flow chart that is existing combined type inner tooth nail;

Fig. 4: the stereo appearance figure that is integrally formed inner tooth nail of the present utility model;

Fig. 5: the cross-section structure that is integrally formed inner tooth nail of the present utility model;

Fig. 6: the flow chart that is this manufacturing model utility method;

Fig. 7: the stamping press schematic representation first time that is the utility model manufacture method;

Fig. 8: the stamping press schematic representation second time that is the utility model manufacture method;

Fig. 9 is the schematic representation of stamping press for the third time of the utility model manufacture method;

See also Fig. 4, shown in 5, it is the inner tooth nail 20 that has integrally formed structure for a kind of, it is mainly a kind of integrative-structure that directly is stamped to form shape fast through several by wire rod, its epimere is the tooth tube 21 that is provided with internal thread 211 for car, hypomere is then for extending the elongated nail body 22 of tooth tube 21 bottoms, and tooth tube 21 is to be taper to bring together with the adjacent place 23 of nail body 22, make tooth tube 21 bottoms be coniform and the effect of strengthening structure is arranged, make by this nail body 22 not easy-rupturing (if, tooth tube 21 bottoms are plane, the nail body 22 that is then extended will be easier to be fractureed, and show the anxiety that the structural strength deficiency is arranged).

Such as the described integrally formed inner tooth nail of leading portion, when having preferable structural strength according to its integrally formed structure, more not having nail body 22 phenomenons loosening or that get loose takes place, superior many far beyond the box-like inner tooth nail of traditional group, and nail body 22 is to be extended by tooth tube 21 bottom center one, be not as the box-like inner tooth nail of traditional group with for it towards the prescription formula, so its nail body 22 can keep the center, honest and do not have the anxiety of deflection, such structure, than existing combined type inner tooth nail, aspect structural design, obviously have sturdy and durable, the nail body does not have skewness and is more suitable for the utilization of gunpowder nail hitting, there is not the anxiety of bullet nail during use and the spy provides many practical improvement benefits such as having high security.

And understand relevant forming process of the present utility model further for making, and special cooperate Fig. 6 to Fig. 9 and the manufacture method of these integrally formed inner tooth nails 20 is described in detail in detail, its step is as follows:

A, cut the wire rod 30 of predetermined length;

B, wire rod 30 inserted (epimere of this die cavity partly is equivalent to the size of wire rod 30 in the die cavity of first press tool 31 shown in Figure 7, the hypomere part is then comparatively elongated), and with one this places the wire rod 30 in first press tool 31 towards excellent 32 punching presses towards the tack of tool, make it according to the die cavity shape of first press tool 31 epimere that is shaped and be thick ailhead 41 and hypomere is the column cap shape nail body 40 of elongated nail body 42;

C, this column cap shape nail body 40 is inserted (this die cavity need be slightly larger than the external diameter of ailhead 41 for ailhead 41 ccontaining parts in the die cavity of second press tool 50 shown in Figure 8, the part ccontaining for nail body 42 is then identical with nail body 42), and with a column cap shapes nail body 40 that places towards the conehead of tool towards excellent 51 punching presses in second press tool 50, make the ailhead 41 of this column cap shape nail body 40 be configured as the short ailhead 411 that caves in into taper than tubbiness and top end according to the die cavity form, but the part of nail body 42 is constant, makes that these column cap shape nail body 40 drawings are to have the short column head of short ailhead 411 and elongated nail body 421 nail body 401;

D, short column head nail body 401 is still placed in the die cavity of second press tool 50, with one towards the tack of tool towards excellent 60 punching presses it, this tack dashes the termination of rod 60 greater than excellent body, and the external diameter of termination is less than the internal diameter of the short ailhead 411 of short column head nail body 401, make after the punching press, the upwards material extrusion of promptly taking advantage of a situation of this weak point ailhead 411 extends into cylinder-shapedly, and making it to be configured as epimere is that cylindrical shell 71, hypomere are the nail embryo 70 of elongated nail body 72;

E, last, cylindrical shell 71 cars that will follow closely embryo 70 are again established internal screw thread and will be followed closely body 72 ends and charge and attack into nail point 721, promptly finish described integrally formed inner tooth nail 20.

Because the manufacture process of above-mentioned integrally formed inner tooth nail 20, only be a stamping press and a train tooth operation fast for several times, suitable is fast simple, and being suitable for automation, produces in a large number the utmost point, manufacturing process than the box-like inner tooth nail of traditional group, obviously simplified operations such as some unnecessary borings, punching press assembling, simplified processing procedure, promote production capacity, quality and significantly reduce the Practical Benefit of many dark tool industrial utilization such as manufacture cost and have.

In sum, Yi Zhi, the utility model really can be according to it through the manufacturing process of innovation and the integrally formed structure that obtains, obtain many practical improvement benefits, its not only can improve common combinations formula inner tooth nail aspect structure and processing procedure many drawbacks and dark tool industrial utilization, and also do not see has identical or the fellow at first discloses and sufficient tool novelty and creativeness before, so propose utility application in accordance with the law.

Claims

1, a kind of integrally formed inner tooth nail, it is characterized in that: it is to be mainly one by the direct integrative-structure through for several times being stamped to form shape fast of wire rod, its epimere is that tooth tube, the hypomere that car is provided with internal thread is the elongated nail body that extends tooth tube bottom, and tooth tube and adjacent place of following closely body and the tapered shape of bringing together make the tooth tube bottom be coniform.