A kind of thread rolling tooth plate mould for producing self-tapping screws with cutter teeth
A technology of self-tapping screws and knife teeth, which is applied to home appliances, threaded products, and other home appliances, etc., can solve problems such as poor firmness, easy breakage of screws, and easy removal of screws
Active Publication Date: 2019-03-08
台牙牙板模具(嘉兴)有限公司
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Problems solved by technology
[0002] Thread rolling board - used for the two square templates on the thread rolling machine, divided into two pieces, one long and one short, with tooth patterns on it, used to extrude the screw nail into a threaded mold, the thread rolling board is The most commonly used thread tool in the standard fastener industry when processing screws and bolts. The commonly used thread rolling board generally has only one thread pattern. The processed and formed screws are too monotonous and have limited uses. It is easy to break when it is transferred into a wall or a hard object, and it will also be difficult to transfer because the transferred impurities cannot be discharged in time. It is impossible to continue to transfer in, and the screw in the transferred object is also easy to be pulled out under the action of external force, and the firmness is poor, which causes trouble and difficulty to the work. A thread rolling die that can be twisted until the steel bar is broken, reducing the breakage of the screw and enhancing the firmness of the screw
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[0031] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with illustrations and specific embodiments.
[0032] refer to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the thread rolling die used for producing self-tapping screws includes a static plate 1 and a moving plate 2, the moving plate 2 can move on the static plate 1, and the static plate 1 and the moving plate 2 There are high teeth pattern 11, twisted rib pattern 12, low tooth pattern 13 and triangular edge pattern 14 respectively, among which high tooth pattern 11, twisted pattern 12, low tooth pattern 13 and triangular edge pattern 14 are all located The upper end surfaces of the static plate 1 and the moving plate 2;
[0033] The high teeth lines 11 and the low teeth lines 13 are recessed in t...
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A thread rolling plate die for producing self-tapping screws with cutter teeth comprises a fixed plate and a movable plate, wherein the structure of the movable plate is completely the same as the structure of the fixed plate; cutter tooth thread grains are further arranged on the fixed plate; the movable plate can move on the fixed plate; the fixed plate further comprises high thread grains, twisted thread grains, low thread grains and prism thread grains; and the high thread grains, the twisted thread grains, the low thread grains and the prism thread grains are positioned on the upper end surface of the fixed plate. The screw produced by the die comprises high threads and low threads; the cutter tooth thread grains are arranged on the fixed plate; after a screw to be processed is processed by the cutter tooth thread grains, the high threads of the screw have cutter teeth; when the screw is screwed in a wall or a plate type workpiece, hard objects such as reinforcing steel bars can be cut and damaged; and therefore, the screw can enter the wall or the plate type workpiece conveniently.
Description
technical field [0001] The invention relates to the field of thread rolling boards used in screw processing and production, in particular to a thread rolling die for producing knife-tooth self-tapping screws. Background technique [0002] Thread rolling board - used for the two square templates on the thread rolling machine, divided into two pieces, one long and one short, with tooth patterns on it, used to extrude the screw nail into a threaded mold, the thread rolling board is The most commonly used thread tool in the standard fastener industry when processing screws and bolts. The commonly used thread rolling board generally has only one thread pattern. The processed and formed screws are too monotonous and have limited uses. It is easy to break when it is transferred into a wall or a hard object, and it will also be difficult to transfer because the transferred impurities cannot be discharged in time. It is impossible to continue to transfer in, and the screw in the tra...
Claims
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IPC IPC(8): B21H3/06
CPCB21H3/06
Inventor 陈吉胜
Owner 台牙牙板模具(嘉兴)有限公司