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Double-acting pressing die for oil bag

An oil bag and press molding technology, which is applied to hand-held tools, manufacturing tools, etc., can solve the problems of low work efficiency, poor finished product qualification rate, unfavorable assembly, etc. The effect of maintaining and improving the pressing efficiency

Active Publication Date: 2021-05-28
HANGZHOU DC ENERGY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]In the prior art, the oil bladder is pressed into the machine barrel usually using a single integral die, but the opening of the machine barrel is narrow and sharp, which is not conducive to assembly, and The oil bag is soft and tense, and it is difficult to put it into the barrel with simple actions. If the pressure is too high, it will easily get stuck on the sharp angle and cause damage to the oil bag. The existing oil bag press has low working efficiency and poor yield of finished products.

Method used

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  • Double-acting pressing die for oil bag
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  • Double-acting pressing die for oil bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of oil bag double-moving die, such as Figure 1 to Figure 3 As shown, it is used for the internal pressure oil bag 2 of the barrel 1, including a pre-compression connecting plate 8 and a final shaft 6 fixed on the pre-compression connecting plate 8. The lower end of the final pressing shaft 6 is provided with an internal compression mold 5, and the pre-compression connecting plate 8 is screwed Fixed on the upper end of the final shaft 6, the pre-compression connecting plate 8 can be connected with a power compression mechanism such as a compression cylinder. The inner die 5 is fixed on the lower end of the pressing shaft 6 by screws. The finale 6 is also provided with an outer mold 3 sleeved on the outside of the inner die 5. The lower end of the outer mold 3 is provided with a bell mouth 31 that expands downward. The bell mouth 31 cooperates with the upper end of the oil bag 2. The outer mold 3 and the finale 6. The bracket is provided with a guide piece, and t...

Embodiment 2

[0027] A reciprocating die for an oil bag 2, the difference between embodiment 2 and embodiment 1 is: as Figure 4 with Figure 5 As shown, the bell mouth 31 includes three sections of circular table surfaces 32 arranged continuously, and the middle part of the circular table surface 32 in the middle section corresponds to the upper end of the oil bag 2; the cone angles of the circular table surfaces 32 at both ends are equal, and the cone angle of the circular table surface 32 in the middle section The angle is larger than the cone angle of the circular table surface 32 at both ends. A transition fillet is provided between adjacent circular mesa surfaces 32 .

Embodiment 3

[0029] A reciprocating die for oil bladder 2, the difference between embodiment 3 and embodiment 1 is that: Figure 6 As shown, the guide sleeve 4 is provided with a guide groove 41, and the final shaft 6 is provided with a limit protrusion 61 matching the guide groove 41. The guide groove 41 includes an arc groove 42 located at the lower end of the guide sleeve 4 and a straight groove located at the upper end of the guide sleeve 4 The groove 43, the straight groove 43 and the arc groove 42 have a smooth transition, and the line connecting the two ends of the arc groove 42 is parallel to the axis of the guide sleeve 4. The guide grooves 41 are provided with four sets of circumferential arrays on the inner wall of the guide sleeve 4 around the axis of the guide sleeve 4 . Four limiting protrusions 61 are also provided to cooperate with the guide groove 41 . In the natural state without being pressed down, the outer mold 3 is located at the lowest end position that can be reach...

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Abstract

The invention discloses a double-acting pressing die for an oil bag. The double-acting pressing die is used for pressing the oil bag in a machine barrel and comprises a pre-pressing connecting plate and a pressing shaft fixed to the pre-pressing connecting plate; an inner pressing die is arranged at the lower end of the pressing shaft; an outer die arranged on the outer side of the inner pressing die in a sleeving mode is further arranged on the pressing shaft; a horn mouth expanding outwards and downwards is formed in the lower end of the outer die; the horn mouth is matched with the upper end of the oil bag; the outer die and a pressing shaft support are provided with guiding pieces; the guiding pieces and the outer die are fixedly arranged; the guiding pieces and the pressing shaft are arranged in a sliding mode; and a reset spring is arranged between the outer die and the pre-pressing connecting plate. The double-acting pressing die has the advantages that oil bag pressing and feeding can be completed, the oil bag feeding action is completed through relative sliding of the inner pressing die and the outer die, the upper end of the oil bag is prevented from being clamped or damaged, smooth pressing-in of the oil bag is achieved, and the pressing-in efficiency of the oil bag is improved.

Description

technical field [0001] The present application relates to the technical field of deep well pump oil bladder presses, in particular to an oil bladder reactivating die. Background technique [0002] The oil bladder is a device used to adjust the balance of internal and external pressure, which can ensure the normal operation of the motor in the submersible pump. For example, in the Chinese patent literature, the utility model patent with the authorized announcement number CN 210949286U disclosed an oil bladder structure of a submersible deep well pump on July 7, 2020, including a motor housing, a base, and an oil bladder with a cavity at the bottom. The upper end of the base is provided with a first annular flange, the inner wall of the oil bag is sleeved on the first annular flange, and its inner wall is close to the outer wall of the first annular flange, and the lower end of the base is also provided with a The through hole of the cavity of the oil bag, the outer wall of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/02
CPCB25B27/02
Inventor 董强祝新荣
Owner HANGZHOU DC ENERGY EQUIP