CN109226616A

CN109226616A - The manufacturing method of long sleeve

Info

Publication number: CN109226616A
Application number: CN201710561415.XA
Authority: CN
Inventors: 赖传荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-11
Filing date: 2017-07-11
Publication date: 2019-01-18
Anticipated expiration: 2037-07-11
Also published as: CN109226616B

Abstract

A kind of manufacturing method of long sleeve, the column raw material of preparation is after molding the standby pit to squeeze or forge, reshaping goes out the first groove extended by first end towards second end, then when the support force of the column raw material is still enough, it forges in advance and forms the portion of lifting one's head, and it forms after being located at the second groove of opposite side with first groove, just squeezing first groove and forming first segment that a section is polygon and a section is circular second segment.The first segment and the demand of the second segment are formed for first groove, the step of first being forged before being squeezed, it is effectively prevent the crooked situation being also easy to produce after squeezing because solid material supportive is insufficient, so that the long sleeve that the manufacturing method of long sleeve of the present invention is more advantageous to manufacture head and bar portion diameter width differs greatly.

Description

The manufacturing method of long sleeve

Technical field

The present invention relates to a kind of manufacturing methods, more particularly to a kind of manufacturing method of long sleeve.

Background technique

It refering to fig. 1, is No. 105111964 " molding side of long sleeve of applied TaiWan, China before inventor Method " patent of invention case (case has been approved No. 586454 patents for invention of I), sequentially comprises the steps of firstly, step 21 is Prepare the cylindric raw material 3 of a predetermined size, which has opposite a first end 31 and a second end 32.Then, step 22 be to mold one first chamfering 311 in the first end 31 of the raw material 3.Next, step 23 is by the original Jing Guo step 22 After the first end 31 and 32 turned upside down of second end of material 3, one first pit 312 is molded then at the first end 31 of the raw material 3, and One second chamfering 321 is formed in the second end 32 of the raw material 3.Step 24 is to mold one second in the second end 32 of the raw material 3 Pit 322, and squeeze along first pit 312 first end 31 of the raw material 3, and mold one by the first end 31 towards this The first groove 313 that two ends, 32 direction extends.First groove 313 has been processed to one by 31 direction of first end at this time 32 direction of second end extend and section be hexagon first segment 314 and one by the first segment 314 towards 32 side of the second end To extension and section is circular second segment 315.Then, step 25 is first by the first end of the raw material 3 Jing Guo the step 24 31 be inverted with second end 32 after forge the raw material 3 again, make the raw material 3 have one by the second end 32 towards 31 direction of first end Bar portion 34 that 33, one, the head of extension is extended by the first end 31 towards 33 direction of head and one are integrally connected to this Necking part 35 between head 33 and the bar portion 34, the section of the necking part 35 be by the head 33 towards 34 direction of bar portion gradually Contracting.Step 26 is the second end 32 of the raw material 3 to be squeezed along the second dimple 322, and mold one by the second end 32 towards this 34 direction of bar portion extends and section is the second groove 323 and one of polygon between second groove 323 and first groove Partition wall 36 between 313.Finally, step 27 is to thrust the partition wall 36 to be connected to first groove 313 and second groove 323, that is, produce the long sleeve 4.

It is the first segment 314 and second of first straight forming first groove 313 in a manner of squeezing in the step 24 Section 315.However, to form this in addition to being reserved in the step 25 during squeezing by mold and elongating the raw material 3 simultaneously Outside the material on head 33, around the solid material part for the bar portion 34 for going out first groove 313, it will certainly be somebody's turn to do because being squeezed out Relatively thin state is presented in the external force of first segment 314 and the second segment 315, causes the obvious insufficient situation of support force.Due to It is subsequent in the step 25, be so that the raw material 3 is formed the wide head 33 that will be big of the wide more original diameter of diameter in a manner of forging, therefore In the case that the support force of the bar portion 34 is relatively weak, if to forge with bigger power, the original diameter compared with the raw material 3 is made It is wide will greatly more head 33 when (such as the diameter on the head 33 is wider than wide 1.3 times of diameter of the bar portion 34 or more persons), the bar Portion 34 is then easy to generate skew because that can not support the power forged.Therefore, the forming method of long sleeve as shown in Figure 1, only Can be suitably used for the head 33 and the lesser situation of the wide difference of 34 diameter of bar portion, when the head 33 and the bar portion 34 the wide difference of diameter more When big, then the bar portion 34 is easy to generate the situation of skew when carrying out the step 25, thus influences the good of manufacture long sleeve 4 Rate.

Summary of the invention

Manufacturing yield can be promoted the purpose of the present invention is to provide a kind of, manufactures the manufacturing method of the long sleeve of good quality. The manufacturing method of long sleeve of the present invention, sequentially comprises the steps of.

Prepare the column raw material of a predetermined size, which has opposite a first end and a second end.

One first chamfering is molded in the first end of the column raw material.

One first pit is molded in the first end of the column raw material, and forms one second in the second end of the column raw material Chamfering.

A second dimple is molded in the second end of the column raw material, and squeezes the of the column raw material along first pit One end, and mold first groove extended by the first end towards second extreme direction.

The column raw material is forged, makes the column raw material that there is a head extended by the second end towards first extreme direction Portion, a bar portion extended by the first end towards the cephalad direction and one are integrally connected between the head and the bar portion Necking part, the section of the necking part are tapered towards the bar portion direction by the head.

The second end of the column raw material is squeezed along the second dimple, and molds one by the second end towards the bar portion direction The second groove and a partition wall between second groove and first groove extended.

Squeeze first groove, make first groove formed one by the first end towards second extreme direction extend and section First segment and one for polygon are extended by the first segment towards second extreme direction and section is circular second segment.

The partition wall is removed to be connected to first groove and second groove.

The object of the invention to solve the technical problems also can be used following technical measures and further realize.

Preferably, the manufacturing method of aforementioned long sleeve, wherein the step (C) is by of the column raw material in step (B) After one end and second end are inverted, then in the first end of the column raw material first pit is molded, while in the column raw material Second end forms second chamfering.

Preferably, the manufacturing method of aforementioned long sleeve, wherein the step (E) is by the original of the column Jing Guo the step (D) The first end and second end of material forge the column raw material after being inverted again.

Preferably, the manufacturing method of aforementioned long sleeve, wherein the wide ratio of the diameter of the head and the bar portion between 1.3 to 1.6.

Preferably, the manufacturing method of aforementioned long sleeve, wherein the section of first groove of the step (D) is circle.

Preferably, the manufacturing method of aforementioned long sleeve, wherein the section of second groove of the step (F) is polygon.

Preferably, the manufacturing method of aforementioned long sleeve, wherein the step (G) also squeezes second groove, forms one certainly The circle segments that the partition wall is extended a distance into towards the second end.

The beneficial effects of the present invention are: before squeezing first groove, just when the support force of solid material is still enough The step of first being forged, enable the column raw material bear it is powerful forge power and mold the biggish head of diameter width, And the situation of skew is not generated, other than being avoided that skew and effectively improving yield, also because can be imposed when forging bigger Power is specifically adapted to the manufacture demand that the diameter width of the head and the bar portion differs greatly, and can therefore improve manufacturing yield With quality.

Detailed description of the invention

Fig. 1 is flow chart, illustrates the forming method of an existing long sleeve；

Fig. 2 is a flow chart, illustrates an embodiment of the manufacturing method of long sleeve of the present invention；

Fig. 3 is a cross-sectional view, illustrates the section kenel of one second groove of the column raw material in the present embodiment；And

Fig. 4 and Fig. 5 is cross-sectional view, illustrates section kenel of one first groove in different location of the column raw material.

Specific embodiment

The following describes the present invention in detail with reference to the accompanying drawings and embodiments:

Referring to Fig.2, an embodiment of the manufacturing method of long sleeve of the present invention, sequentially comprises the steps of firstly, step 51 It is the column raw material 6 for preparing a predetermined size, which has opposite a first end 61 and a second end 62.It will be first Row explanation is to be illustrated with the column raw material 6 to be cylindric in the present embodiment, and if desired producing external form is it The long sleeve of his kenel then can select the column raw material 6 of other shapes according to demand or mold condition.In addition, the mold Design, be the existing knowledge of those skilled in the art, the explanation of those skilled in the art's embodiment according to the present invention, from It so can be designed corresponding mold, therefore do not add to repeat for mold herein.

Then, step 52 is to mold one first chamfering 611 in the first end 61 of the column raw material 6；Step 53 be then by After the first end 61 of the column raw material 6 and the second end 62 are inverted, it is recessed that one first is molded in the first end 61 of the column raw material 6 Hole 612, and one second chamfering 621 is formed in the second end of the column raw material 6 62.It should be particularly noted that, in the present embodiment By the inverted movement of column raw material 6, it is the design of mating mold and carries out, the subsequent inversion movement referred in present embodiment Also same, no longer additional description.

Step 54 is to mold a second dimple 622 in the second end 62 of the column raw material 6, and along first pit 612 Squeeze the first end 61 of the column raw material 6, and mold one extended by the first end 61 towards 62 direction of second end first Groove 613.It is only that go out this first recessed by type is tentatively extruded from this point, the solid material as arround first groove 613 Slot 613 still remains with certain thickness, therefore generally speaking the column raw material 6 still has comparable supportive.

Step 55 is to forge the column raw material 6 again after being inverted the first end 61 of the column raw material 6 and the second end 62, is made The column raw material 6 has 63, one, a head extended by the second end 62 towards 61 direction of first end by the first end 61 The bar portion 64 extended towards 63 direction of head and a necking part 65 being integrally connected between the head 63 and the bar portion 64. Since the solid material part of the bar portion 64 still maintains certain thickness, the column raw material 6 second end 62 by powerful power It is forged, when molding wide wide compared with the original diameter of the column raw material 6 head 63 of diameter, the wide original diameter of diameter It is wide to want the narrow bar portion 64, the powerful power is still enough to bear without skew.Wherein, the section of the necking part 65 is by this Head 63 is tapered towards 64 direction of bar portion, enables the head 63 via the necking part 65 and prolonging for curve is presented in the bar portion 64 that arrives It stretches, optimizes structural strength whereby.

Refering to Fig. 2 and Fig. 3, step 56 is that 62 (such as step of second end of the column raw material 6 is squeezed along the second dimple 622 54 and step 55 shown in), and mold one and extended by the second end 62 towards 64 direction of bar portion, and section is quadrangle Second groove 623 and a partition wall 66 between second groove 623 and first groove 613.

Simultaneously refering to Fig. 2 to Fig. 5, step 57 is to squeeze first groove 613, and first groove 613 is made to form one by this First segment 614 that first end 61 extends towards 62 direction of second end and one by the first segment 614 towards 62 direction of second end The second segment 615 of extension；And squeeze second groove 623, formed one from the partition wall 66 towards the second end 62 extend one section away from From circle segments 624.Wherein, the section of the first segment 614 is hexagonal, for carry out step 57 when just formation, and this second The section of section 615 and the section of the circle segments 624 be then it is rounded, be while the first segment 614 formation, keep this The fracture morphology of one groove, 613 script and formed.Finally, step 58 is to remove the partition wall 66 to be connected to first groove 613 With second groove 623, the production of the long sleeve is completed.

In the common specification of the related fields of long sleeve, the present embodiment is the diameter for being useful in the head 63 and the bar portion 64 The case where wide ratio is 1.3~1.6:1.When need to make the head 63 diameter it is wide bigger when, then then to apply in the step 55 Power is forged more greatly, and in the case where first groove 613 needs to form the first segment 614 and second segment 615, the present invention is First groove 613 is just squeezed after forging, and to allow 64 part of bar portion to have preferable support force when being forged, is effectively kept away Exempt to cause the situation of skew because 64 support force of the bar portion is insufficient, therefore manufacturing yield and quality can be effectively improved, especially should The wide ratio of the diameter of head 63 and the bar portion 64 is even more effectively improved and is made using the prior art 1.3 to 1.6 the case where At yield issues.

Claims

1. a kind of manufacturing method of long sleeve, sequentially comprises the steps of

(A) prepare the column raw material of a predetermined size, which has opposite a first end and a second end；

(B) first chamfering is molded in the first end of the column raw material；It is characterized by: the manufacturing method of the long sleeve, Also comprise the steps of

(C) first pit is molded in the first end of the column raw material, and forms one in the second end of the column raw material Second chamfering；

(D) second dimple is molded in the second end of the column raw material, and squeezes the column raw material along first pit First end, and mold first groove extended by the first end towards second extreme direction；

(E) the column raw material is forged, makes the column raw material that there is a head extended by the second end towards first extreme direction Portion, a bar portion extended by the first end towards the cephalad direction and one are integrally connected between the head and the bar portion Necking part, the section of the necking part are tapered towards the bar portion direction by the head；

(F) second end of the column raw material is squeezed along the second dimple, and molds one by the second end towards the bar portion side To the partition wall of the second groove of extension and one between second groove and first groove；

(G) first groove is squeezed, so that first groove is formed one and is extended and broken towards second extreme direction by the first end Face be polygon first segment and one by the first segment towards second extreme direction extend and section be circular second segment； And

(H) partition wall is removed to be connected to first groove and second groove.

2. the manufacturing method of long sleeve as described in claim 1, it is characterised in that: the step (C) is by the column in step (B) After the first end of raw material and second end are inverted, then in the first end of the column raw material first pit is molded, while in the column The second end of shape raw material forms second chamfering.

3. the manufacturing method of long sleeve as described in claim 1, it is characterised in that: the step (E) will pass through the step (D) The first end and second end of the column raw material forge the column raw material after being inverted again.

4. the manufacturing method of long sleeve as described in claim 1, it is characterised in that: the wide ratio of the diameter of the head and the bar portion is situated between Between 1.3 to 1.6.

5. the manufacturing method of long sleeve as described in claim 1, it is characterised in that: the section of first groove of the step (D) For circle.

6. the manufacturing method of long sleeve as described in claim 1, it is characterised in that: the section of second groove of the step (F) For polygon.

7. the manufacturing method of long sleeve as claimed in claim 6, it is characterised in that: the step (G) also squeezes second groove, shape The circle segments extended a distance at one from the partition wall towards the second end.