CN1066813A

CN1066813A - Die presser for ping-pong ball

Info

Publication number: CN1066813A
Application number: CN 91103327
Authority: CN
Inventors: 蔡国强; 吕震; 宋海峰; 章林
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-19
Filing date: 1991-05-19
Publication date: 1992-12-09

Abstract

Enlarge the heterogeneity of calendering during a kind of punching press table tennis semi-finished product, thereby increase the press of semi-finished product sphere top thickness.In this equipment, being stamped has a support cup (12) under the material, die head also can resolve into two layers, utilize die head and support cup (12) to the clamp effect of material and the punching press from outside to inside of die head during punching press, the calendering of the outer part of support cup (12) cup circle is greater than the calendering of part in the cup circle when making the material punching press, thereby guaranteed the thickness of semi-finished product head portions, increased the output capacity of hard sphere greatly.

Description

Die presser for ping-pong ball

Barrier material calendering during a kind of punching press table tennis semi-finished product enlarges the heterogeneity of calendering, thereby increases the press of semi-finished product sphere top thickness.

At present, during table tennis is made, half-finished punching press is by the die head one-step shaping, therefore the calendering of whole material is even substantially, and each dot thickness of sphere keeps approaching, and its top is then the longest owing to the punching press time, calendering the most very, thickness is also just minimum, so the ball of output does not often reach the required hardness of existing market, the hard sphere rate is extremely low.

The present invention's purpose provides and a kind ofly can reduce the calendering at sphere top effectively, increases the thickness on ball top, thereby improves the pressing equipment of hard sphere output capacity.For realizing this purpose, the technical solution of the utility model shows as: one. with the punching course backwardization of common die head when working, be about to common monoblock type die head and be decomposed into sleevedly, at first implement punching press by outer ring die holder (8), continuous then with internal mold top (9) punching press.From the edge and the punching course at center just can reduce the excessive calendering that cause because of the punching press overlong time on the top greatly, keep its thickness; Two. die head right bottom one bearing device is arranged in addition, be used for the material that support is stamped.Because the diameter of the support cup (12) in the bearing device is less than the half-finished diameter that is stamped, so in punching course, support cup (12) is under the effect of lower spring (13), form the clamp in the middle part of the material with die head, like this, originally material lasting calendering that takes place when punching press just has been interrupted, and the calendering that semi-finished product marginal portion and top are divided is separated mutually, and the thickness on top has just had assurance.

Adopt this equipment, its advantage is to increase the calendering heterogeneity of material in punching course, make the half-finished top of table tennis guarantee that enough thickness is arranged, improved the output capacity of hard sphere, make and have only tens percent the hard sphere output capacity can be at present at most up to more than 95 percent.

Accompanying drawing is a structural representation of the present invention.

Below in conjunction with the description of the drawings, introduce embodiment in detail.

Figure one is the molding press overall schematic, under the prerequisite that does not influence expression, does not wherein relate to part of the present invention and has given simplification.Omit, indicate pressing mold die system and bearing device two parts legend emphatically.1 is axle sleeve among the figure; 2 is last item, is driven by it and wholely carries out punching press towards frame and die holder; 3 is the last item neck; 4 is interior axle, drives die head and carries out punching press; 5 is towards the frame collar; 6 is towards frame; 7 is upper spring, and upper spring loosens when pressing mold presses down, and restores, thereby drives to fall towards frame; 8 is die holder, and top hollow can be hidden Na Moding; 9 are the mould top; 10 is holding pad; 11 for putting the material circle; 12 is the support cup; 13 is lower spring, and the support cup is restored in the punching press back that finishes, and simultaneously, gives the support cup with certain power, so as with die head clamp material; 14 is connecting rod.

Molding press is when work, and last item (2) presses down, and upper spring (7) is loosened, and restores, and falls towards frame (6), and holding pad (10) is at first pushed down the material of putting on the material circle (11); Last item this moment (2) continues to press down, and under the state that can't fall towards frame (6), die holder (8) is ejected towards frame (6), comes into effect punching press; When the die holder punching press finished, interior axle (4) pressed down, and made mould top (9) release die holder, and material is carried out the second step punching press (secondary is stamped into continuously and carries out, and does not pause); At last, last item neck (3) is pushed down towards frame collar (5), and whole punching press finishes.

Concerning support cup (12), when die holder (8) when coming into effect punching press, die holder (8) outer ring, top just in time forms clamp with support cup (12) to material, in die holder (8) punching course, the punch-out of material is all the time outside the support circle, because the calendering in the clamp effect of support cup (12) and die holder (8), support cup (12) does not almost relate to, and has guaranteed the thickness of material, and when second step, mould pushed up (9) punching press, punch-out only limits in the support cup (12), and this part material rolls also little because punching press is not dark, therefore, its thickness has substantially exceeded the outer part of cup, thereby has reached the purpose of non-homogeneous calendering, has guaranteed the manufacturing of hard sphere.And push up in (9) punching press process at die holder (8) and mould, support cup (12) under the support of lower spring (13), withstands material all the time, slowly falls with the synchronous friction speed of die head, after punching press is finished, restores with the rising of last item (2), prepares punching press for the second time.

Figure two is for support cup (12) and put the vertical view that material encloses (11), and dotted line is represented connecting rod (14).

Figure three is the upward view towards frame (6).

Figure four is the another embodiment of support cup (12), and this embodiment considers and reconstructs on the basis of existing equipment and design, promptly increases on existing equipment and adorn a support bracket (15).Spring (13) and support cup (12).

Figure five is the another embodiment of die head, during promptly die holder (8) and mould top (9) is placed in two molding presses, makes semi-finished product two one-step formings.

Even should be pointed out that the present invention when only adopting this die head device, or only increase the dress bearing device and still during the old-fashioned common die head of adapted, effective too.

Claims

1, a kind of die presser for ping-pong ball by frame, last item (2), towards frame (6), die head, put material circle (11) etc. and form, is characterized in that:

1.1 put in the material circle (11) with the die head opposite position also have one can lifting support cup (12);

1.2 said die head can be two layers of body that separate, its termination (9) part is hidden in the die holder (8);

1.3 said die head also can be disjunct two mutually, is sub-packed in two molding presses;

2, as 1.1 described support cups (12), it is characterized in that:

2.1 outward appearance is a cup-shaped, rim of a cup is the circular rings of a diameter less than die diameter;

2.2 the bottom has one to be through in the frame.The connecting rod that can move up and down (14);

2.3 cup end atresia or also some apertures can be arranged;

3, as 2.2 described connecting rods (14), it is characterized in that:

3.1 connecting rod (14) is a diatropism, two is through in the frame, and by the spring on the frame (13) rim;

3.2 connecting rod (14) also can be vertical, the bar head is through at the frame bottom, and is with spring (13) at shaft.