Precise double-disc-spring elastic device

Abstract

The utility model provides a precise double disc spring elastic device, which relates to the technical field of mould processing, and comprises a shell and an inner core movably arranged on the shell, the shell and the inner core are combined to form a mounting cavity, the mounting cavity is provided with a first disc spring and a second disc spring, the diameter of the first disc spring is smaller than that of the second disc spring, and the first disc spring and the second disc spring are arranged in the mounting cavity. The first disc spring is positioned above the second disc spring, and the central axes of the first disc spring and the second disc spring are overlapped; an inner gasket is arranged between the first disc spring and the second disc spring, and a compressible space is reserved between the lower surface of the inner core and the upper surface of the inner gasket. The double-disc-spring elastic device has the advantages that the first disc spring and the second disc spring are adopted, so that the compression stroke is long, compared with a single disc spring, the service life is short, in the same compression range, the compression ratio of the single disc spring needs to reach 80%, and in the double-disc-spring elastic device, the compression ratio of the first disc spring and the second disc spring only needs to reach 60%; and the service life of the first disc spring and the second disc spring can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould processing technical field especially a precise double disc spring elastic force ware. BACKGROUND

[0002] In mould processing, generally divide fixed mould and movable mould, when producing, fixed mould and movable mould are combined together, then after product production is completed, need separating fixed mould and movable mould, take out the product, in the prior art, spring is added in the mould, when product is shaped and is taken out from the mould, realizes the automatic opening of the mould through the spring in the mould.

[0003] In the prior art, the patent literature (announcement number: CN219114541U, patent name: a elastic force ware) technical scheme discloses "including the casing, be equipped with the cavity in the casing, the upper end of the casing is equipped with the upper opening, the lower end is equipped with the lower opening, the inner diameter of the upper opening is less than the inner diameter of the lower opening, be equipped with elastic assembly, top post and bottom plate in the cavity, the top post includes the cylinder and the clamping seat, the outer diameter of the cylinder is less than the inner diameter of the upper opening, the outer diameter of the clamping seat is greater than the inner diameter of the upper opening, the cylinder is stretched out from the upper opening, the bottom plate is installed in the lower opening, the both ends of the elastic assembly are respectively with the top post and the bottom plate abutment."

[0004] In combination with the description record content and the drawing of the patent literature, the elastic force ware seals the spring in the casing, can effectively avoid the direct contact of the spring and the mould, but the compression stroke of the elastic force ware is short, is not suitable for the elastic compression mould needing long stroke. UTILITY MODEL CONTENT

[0005] The utility model overcomes the shortcoming in the prior art, provides a precise double disc spring elastic force ware, and the compression distance of double disc spring compression can be enlarged, so that the compression stroke is longer, in the same compression range, if the compression ratio of a single disc spring is set to 80%, the compression ratio of double disc spring only needs to reach 60%, so the service life of double disc spring is longer than that of single disc spring.

[0006] In order to solve the above technical problem, the utility model is realized through the following technical scheme:

[0007] The utility model provides a precise double disc spring elastic device, including the shell and the movable core that sets up in the shell, the shell and the core combine to form and install the cavity, install the cavity and set up first disc spring and second disc spring, the diameter of first disc spring is less than the diameter of second disc spring, first disc spring is located above second disc spring, and the central axis of both coincides, and the inner gasket is arranged between first disc spring and second disc spring, and the compressible space is reserved between the lower surface of the inner core and the upper surface of the inner gasket, when the inner core is pressed and makes the inner core retract to the inside of the shell, first disc spring contracts and makes the volume of compressible space smaller and pushes the inner gasket to move down to realize the compression of second disc spring, when the pressure is released, first disc spring and second disc spring rebound to make the inner core move up and reset.

[0008] Further, the shell comprises an upper opening and a lower opening, the diameter of the upper opening is smaller than that of the lower opening, the inner core is clamped on the upper opening, and the lower opening is provided with a rear cover.

[0009] Further, the inner gasket comprises a gasket, the middle part of the gasket protrudes upward to form a positioning column, and the first disc spring is inserted into the positioning column.

[0010] Further, the rear cover comprises a support cover, the middle part of the support cover protrudes upward to form a positioning cylinder, and the second disc spring is inserted into the positioning cylinder.

[0011] Further, the upper end of the first disc spring abuts against the inner core, the lower end of the first disc spring abuts against the upper surface of the gasket, the upper end of the second disc spring abuts against the lower surface of the gasket, and the lower end of the second disc spring abuts against the upper surface of the support cover.

[0012] Further, the lower end of the inner core is provided with a first clamping position, the upper end of the shell is provided with a first step position, and the first clamping position is correspondingly connected with the first step position.

[0013] Further, the upper end of the support cover is provided with a second clamping position, the lower end of the shell is provided with a second step position, and the second clamping position is correspondingly connected with the second step position.

[0014] Further, the inner surface of the lower opening protrudes outward to form a reinforcing convex strip, and the reinforcing convex strip is arranged below the second step position.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The first disc spring and the second disc spring can make the compression distance larger, not only make the compression stroke longer, so that the force generated when the first disc spring and the second disc spring rebound is larger, thereby meeting the requirement that the mold opening force required by individual molds is larger; compared with the defect that the service life of a single disc spring is shorter, in the same compression range, the compression ratio of a single disc spring needs to reach 80%, and in the double disc spring elastic force device, the compression ratio of the first disc spring and the second disc spring only needs to reach 60%, which is helpful to prolong the service life of the first disc spring and the second disc spring. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present application, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application, in the drawings:

[0018] Figure 1 is a general view of the precise double disc spring elastic force device of the embodiments of the present application;

[0019] Figure 2 is a sectional view of the precise double disc spring elastic force device of the embodiments of the present application;

[0020] Figure 3 is a sectional view of the shell of the embodiments of the present application;

[0021] Figure 4 is a schematic view of the inner gasket of the embodiments of the present application;

[0022] Figure 5 is a schematic view of the rear cover of the embodiments of the present application;

[0023] Figure 6 is a schematic view of the inner core of the embodiments of the present application.

[0024] In the drawings: 1-shell, 101-upper opening, 102-lower opening, 103-first step position, 104-second step position, 105-enhanced convex strip, 2-inner core, 201-first clamping position, 3-first disc spring, 4-second disc spring, 5-inner gasket, 501-gasket, 502-positioning column, 6-rear cover, 601-support cover, 602-positioning cylinder, 603-second clamping position. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present application are described below in conjunction with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and do not limit the present application.

[0026] As Figure 1As shown, a precise double disc spring elastic device, comprising a shell 1 and a movable inner core 2 arranged on the shell 1, the shell 1 and the inner core 2 combine to form a mounting cavity, the mounting cavity is provided with a first disc spring 3 and a second disc spring 4, the diameter of the first disc spring 3 is smaller than that of the second disc spring 4, so the elastic force of the first disc spring 3 is slightly smaller than that of the second disc spring 4, so after the inner core 2 is pressed, the first disc spring 3 is compressed first, and then the second disc spring 4 is compressed; the first disc spring 3 is located above the second disc spring 4, and the central axes of the two coincide, which helps the first disc spring 3 and the second disc spring 4 to bear force correspondingly, and the force is at the center position, and the force of the two is located on the same straight line, and the force is good; the inner gasket 5 is arranged between the first disc spring 3 and the second disc spring 4, and the lower surface of the inner core 2 and the upper surface of the inner gasket 5 are reserved with a compressible space, when the inner core 2 is pressed and the inner core 2 is retracted into the shell 1, the first disc spring 3 shrinks and the volume of the compressible space becomes smaller, thereby pushing the inner gasket 5 downward to compress the second disc spring 4 at the same distance, when the pressure is released, the first disc spring 3 and the second disc spring 4 rebound to make the inner core 2 move upward to reset, the compression distance is larger, and the stroke is longer; compared with the defect that the single disc spring has a shorter service life, in the same compression range, the compression ratio of a single disc spring needs to reach 80%, in the double disc spring elastic device, the compression ratio of the first disc spring and the second disc spring only needs to reach 60%, which helps to prolong the service life of the first disc spring and the second disc spring.

[0027] As Figures 2 to 6 shown, the shell 1 comprises an upper opening 101 and a lower opening 102, the diameter of the upper opening 101 is smaller than that of the lower opening 102, the inner core 2 is clamped on the upper opening 101, the diameter of the upper opening 101 is matched with the upper end of the inner core 2, so as to facilitate the inner core 2 to retract into the shell 1, the lower opening 102 is provided with a rear cover 6, the inner gasket 5 comprises a gasket 501, the middle part of the gasket 501 protrudes upward to form a positioning column 502, the first disc spring 3 is inserted into the positioning column 502, so as to position the first disc spring 3, preventing the first disc spring 3 from shifting.

[0028] The rear cover 6 comprises a support cover 601, the middle part of the support cover 601 protrudes upward to form a positioning cylinder 602, the second disc spring 4 is inserted into the positioning cylinder 602, so as to position the second disc spring 4, preventing the second disc spring 4 from shifting.

[0029] The upper end of the first disc spring 3 abuts against the inner core 2, the lower end of the first disc spring 3 abuts against the upper surface of the gasket 501, the upper end of the second disc spring 4 abuts against the lower surface of the gasket 501, and the lower end of the second disc spring 4 abuts against the upper surface of the support cover 601, so as to ensure the compactness of the elastic device structure, when the inner core 2 is pressed, the pressure can be perfectly transmitted to the first disc spring 3 and the second disc spring 4, thereby ensuring the rebounding force of the first disc spring 3 and the second disc spring 4.

[0030] The first clamping position 201 is arranged at the lower end of the inner core 2, and the first step position 103 is arranged at the upper end of the shell 1, the first clamping position 201 is correspondingly connected with the first step position 103, so that the inner core 2 is clamped at the upper end of the shell 1, thereby preventing the inner core 2 from being pulled out of the shell 1.

[0031] The second clamping position 603 is arranged at the upper end of the supporting cover 601, and the second step position 104 is arranged at the lower end of the shell 1, the second clamping position 603 is correspondingly connected with the second step position 104, so that the rear cover 6 is fixed at the lower end of the shell 1, and at the same time, the lower surface of the supporting cover 601 is in the same horizontal plane with the lower surface of the shell 1, so that the stability of the spring is better.

[0032] The reinforcing convex strip 105 is arranged below the second step position 104, and the reinforcing convex strip 105 is designed to allow the side edge of the rear cover 6 to be attached to the shell 1 and increase the friction, so that the two are closely combined.

[0033] Working principle: when the spring is used, the shell 1 is directly placed in the fixed mold of the mold, when the movable mold is closed, the movable mold will retract the inner core 2 into the shell 1, the inner core 2 will be compressed to make the first disc spring 3 shrink, at the same time, the compressible space volume will be reduced to push the inner gasket 5 to move downward, so that the first disc spring 3 and the second disc spring 4 are compressed at the same time, and when the locking force disappears, the first disc spring 3 and the second disc spring 4 rebound to move the inner core 2 upward to reset, at the same time, the movable mold is fixed open, and the automatic mold opening of the mold is realized.

[0034] Finally, it should be pointed out that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the embodiment, for the person skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced, but any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A precision dual disc spring energizer characterized by, The application relates to a shell (1) and an inner core (2) movably arranged on the shell (1), wherein the shell (1) and the inner core (2) are combined to form a mounting cavity, the mounting cavity is provided with a first disc spring (3) and a second disc spring (4), the diameter of the first disc spring (3) is smaller than that of the second disc spring (4), the first disc spring (3) is located above the second disc spring (4), and the central axes of the two coincide; an inner gasket (5) is arranged between the first disc spring (3) and the second disc spring (4), a compressible space is reserved between the lower surface of the inner core (2) and the upper surface of the inner gasket (5), when the inner core (2) is pressed to make the inner core (2) retract into the shell (1), the first disc spring (3) is contracted, the volume of the compressible space is reduced, and the inner gasket (5) is pushed downwards to compress the second disc spring (4) at the same distance, when the pressure is removed, the first disc spring (3) and the second disc spring (4) are rebounded to make the inner core (2) move upwards and reset.

2. The precision dual disc spring force applicator of claim 1, wherein, The shell (1) comprises an upper opening (101) and a lower opening (102), the diameter of the upper opening (101) is smaller than that of the lower opening (102), the inner core (2) is clamped on the upper opening (101), and the lower opening (102) is provided with a rear cover (6).

3. The precision dual disc spring force applicator of claim 2, wherein, The inner gasket (5) comprises a gasket (501), the middle part of the gasket (501) is protruded upwards to form a positioning column (502), and the first disc spring (3) is inserted on the positioning column (502).

4. The precision dual disc spring force applicator of claim 3, wherein, The rear cover (6) comprises a supporting cover (601), the middle part of the supporting cover (601) is protruded upwards to form a positioning cylinder (602), and the second disc spring (4) is inserted on the positioning cylinder (602).

5. The precision dual disc spring force applicator of claim 4, wherein, The upper end of the first disc spring (3) is in abutment with the inner core (2), the lower end of the first disc spring (3) is in abutment with the upper surface of the gasket (501), the upper end of the second disc spring (4) is in abutment with the lower surface of the gasket (501), and the lower end of the second disc spring (4) is in abutment with the upper surface of the supporting cover (601).

6. The precision dual disc spring force applicator of claim 4, wherein, The lower end of the inner core (2) is provided with a first clamping position (201), the upper end of the shell (1) is provided with a first step position (103), and the first clamping position (201) is connected with the first step position (103) in correspondence.

7. The precision dual disc spring force applicator of claim 6, wherein, The upper end of the supporting cover (601) is provided with a second clamping position (603), the lower end of the shell (1) is provided with a second step position (104), and the second clamping position (603) is connected with the second step position (104) in correspondence.

8. The precision dual disc spring force applicator of claim 7, wherein, The inner surface of the lower opening (102) is protruded outwards to form a reinforcing convex strip (105), and the reinforcing convex strip (105) is arranged below the second step position (104).

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