CN219543777U

CN219543777U - Improved ejection mechanism

Info

Publication number: CN219543777U
Application number: CN202320410512.XU
Authority: CN
Inventors: 肖云辉
Original assignee: Foshan Shunde Zhineng Precision Mould Co ltd
Current assignee: Foshan Shunde Zhineng Precision Mould Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-08-18
Anticipated expiration: 2033-03-07

Abstract

The utility model relates to the technical field of die discharging, in particular to an improved ejection mechanism, which comprises a lower die and an auxiliary device, wherein four guide posts are arranged on the inner wall of the lower die, the surfaces of the guide posts are connected with a bottom plate in a sliding manner, third springs are sleeved on the surfaces of the guide posts, two ends of each third spring are fixedly connected with the surfaces of the lower die and the bottom plate respectively, two thimble bodies are arranged on the surfaces of the bottom plate, and the auxiliary device is arranged on the surface of the bottom plate and comprises a hollow rod.

Description

Improved ejection mechanism

Technical Field

The utility model relates to the technical field of die discharging, in particular to an improved ejection mechanism.

Background

The ejection mechanism is auxiliary equipment for blanking the die, and after the front die and the rear die are demolded, the product is separated from the rear die by the ejector pins at the lower part, so that the product is taken out.

The utility model discloses a die ejection mechanism, such as the utility model with the publication number of CN207088408U, which comprises a thimble and a top plate, wherein a guide post penetrates through the top plate, the top plate comprises an upper top plate and a lower top plate, a spring is vertically arranged on the upper end surface of the upper top plate, one end of the spring, which is far away from the upper top plate, is abutted against a lower die of the die, the thimble is vertically arranged on the upper end surface of the upper top plate and penetrates through the lower die to a cavity, the thimble is pushed out by the top plate to completely demould an injection product, the force on the top plate is removed after the injection product is taken down, the automatic reset of the thimble can be realized under the action of the spring recovery deformation, and the problems of white ejection and strain of the product in actual processing are solved.

The inventor finds that in the daily work, the existing ejection mechanism is overlong in use, because ejection of the ejector pin is not limited, redundant travel is generated in the ejection and blanking process, the blanking time is prolonged, the phenomenon that the service life of a spring of the ejection mechanism is influenced by extrusion is easily caused by redundant travel, meanwhile, the situation that the ejector pin is damaged due to false ejection of a die is easily caused, and further the ejection mechanism does not have a limiting effect in use, and the problems of redundant travel and false ejection are easily caused are caused.

Disclosure of Invention

The utility model aims to solve the defects that in the prior art, an ejection mechanism does not have a limiting effect and is easy to generate redundant travel and to eject by mistake.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an improved generation ejection mechanism, includes bed die and auxiliary device, the inner wall of bed die is provided with four guide posts, the surface sliding connection of guide post has the bottom plate, the surface cover of guide post is equipped with the third spring, the both ends of third spring respectively with the fixed surface of bed die and bottom plate are connected, the surface of bottom plate is provided with two thimble bodies, auxiliary device sets up on the surface of bottom plate, auxiliary device includes hollow pole, the number of hollow pole has two, two hollow pole and the inner wall fixed connection of bottom plate, the inner wall sliding connection of hollow pole has the slide bar, the one end fixedly connected with roof of slide bar, through roof cooperation hollow pole, can restrict the travel of bottom plate when the bottom plate removes, has reduced the phenomenon that equipment produced unnecessary stroke when ejecting.

Preferably, the surface fixedly connected with protection pad of roof, the transversal circular of protection pad is personally submitted, through setting up the protection pad, can cushion the protection, reduces the phenomenon of wearing and tearing.

Preferably, the round hole has been seted up on the surface of hollow pole, the inner wall sliding connection of round hole has the pull rod, two sets of jacks have been seted up on the surface of slide bar, the pull rod is pegged graft with the inner wall of jack, and through two sets of jacks of pull rod cooperation, can receive and release and slide bar location when roll-off, when slide rod cooperation roof roll-off, can restrict the bottom plate, has reduced the condition that equipment damage caused the mistake ejection to appear.

Preferably, the surface cover of pull rod is equipped with first spring, the both ends of first spring respectively with the fixed surface connection of pull rod and hollow pole, through setting up first spring, be convenient for control pull rod resets, improves the stability of pull rod.

Preferably, the surface of bed die is provided with protection device, protection device's number has two, protection device includes the fixed block, the fixed block is connected with the fixed surface of bed die, the fixed surface of fixed block is fixedly connected with two dead levers, the surface sliding connection of dead lever has the movable block, one side fixedly connected with elasticity cloth that movable block corresponds with the fixed block, rectangular hole has been seted up on the surface of movable block, rectangular hole's inner wall sliding connection has the fixture block, the recess has been seted up on the surface of dead lever, the fixture block passes through the recess of fixture block cooperation dead lever surface with the inner wall joint of recess, can restrict the movable block, makes elasticity cloth expand and protects the ejection of compact.

Preferably, the surface fixedly connected with of fixture block draws the piece, sliding hole has been seted up on the surface of movable block, draw the piece and slide the inner wall sliding connection in hole, through setting up drawing the piece, be convenient for control fixture block and remove, improve the usability.

Preferably, one side of the clamping block corresponding to the inner wall of the rectangular hole on the surface of the moving block is fixedly connected with second springs, and the number of the second springs is two.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. according to the utility model, when the lower die is used for blanking, the bottom plate moves in the guide post, the ejector pin body pushes out materials, the third spring drives the ejector pin and the bottom plate to reset, by arranging the auxiliary device, when equipment is needed to be used, the hollow rod is matched with the top plate and the protection pad, the moving stroke of the bottom plate can be reduced, the first spring of the pull rod is pulled to bear force, the sliding rod and the top plate slide in the hollow rod to a certain position, the pull rod is released, the first spring drives the pull rod to be inserted into the jack on the surface of the sliding rod, at the moment, the top plate can limit the bottom plate to move, and by arranging the auxiliary device, the auxiliary device is convenient for ejecting and blanking by the auxiliary device, so that the blanking time is prolonged, the phenomenon that the service life of the spring of the ejection mechanism is influenced by extrusion is easily caused by the redundant stroke, the situation that the ejector pin is damaged due to false ejection of the ejection mechanism when the die is shaped is reduced, and the integral practicability of the equipment is improved.

2. According to the utility model, the protection device is arranged, when equipment is needed to be used, the movable block is slid in the fixed rod, the movable block pulls the elastic cloth, when the elastic cloth is completely unfolded, the second spring releases the elastic force to drive the clamping block to reset, so that the clamping block is inserted into the groove on the surface of the fixed rod, and the equipment can be used, and the protection device is convenient to protect the equipment, so that dust and garbage can be effectively prevented from entering the spring when the equipment is not used, the phenomenon that the spring is worn and blocked and cannot eject out for discharging is easily caused when the equipment is used later, and the integral protection of the equipment is improved.

Drawings

Fig. 1 is a schematic perspective view of an improved ejection mechanism according to the present utility model;

FIG. 2 is a schematic view of the structure A in FIG. 1 showing an improved ejection mechanism according to the present utility model;

FIG. 3 is a schematic view of a part of the structure of an improved ejection mechanism according to the present utility model;

FIG. 4 is a schematic diagram of an auxiliary device of an improved ejection mechanism according to the present utility model;

fig. 5 is a schematic cross-sectional view of an auxiliary device of an improved ejection mechanism according to the present utility model.

Legend description:

1. a lower die; 2. a thimble body; 3. an auxiliary device; 31. a hollow rod; 32. a protective pad; 33. a top plate; 34. a pull rod; 35. a first spring; 36. a jack; 37. a slide bar; 4. a protection device; 41. an elastic cloth; 42. a fixed block; 43. a moving block; 44. a fixed rod; 45. a pull member; 46. a clamping block; 47. a second spring; 5. a bottom plate; 6. a guide post; 7. and a third spring.

Detailed Description

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides an improved generation ejection mechanism, including bed die 1 and auxiliary device 3, the inner wall of bed die 1 is provided with four guide posts 6, guide post 6's surface sliding connection has bottom plate 5, guide post 6's surface cover is equipped with third spring 7, the both ends of third spring 7 respectively with bed die 1 and bottom plate 5's fixed surface connection, bottom plate 5's surface is provided with two thimble bodies 2, auxiliary device 3 sets up on bottom plate 5's surface, bed die 1's surface is provided with protection device 4, protection device 4's number has two.

The specific arrangement and function of the auxiliary device 3 and the protection device 4 will be described in detail below.

In this embodiment: the auxiliary device 3 comprises two hollow rods 31, the two hollow rods 31 are fixedly connected with the inner wall of the bottom plate 5, a slide rod 37 is slidably connected with the inner wall of the hollow rod 31, one end of the slide rod 37 is fixedly connected with a top plate 33, the hollow rods 31 are matched with the top plate 33, the moving stroke of the bottom plate 5 can be limited when the bottom plate 5 moves, and the phenomenon that redundant strokes are generated when equipment is ejected is reduced.

Specifically, the surface of roof 33 fixedly connected with protection pad 32, the transversal circular of protection pad 32 is personally submitted, through setting up protection pad 32, can cushion the protection, reduces the phenomenon of wearing and tearing.

Specifically, a round hole is formed in the surface of the hollow rod 31, a pull rod 34 is connected to the inner wall of the round hole in a sliding mode, two groups of insertion holes 36 are formed in the surface of the slide rod 37, and the pull rod 34 is inserted into the inner wall of the insertion holes 36.

In this embodiment: the pull rod 34 is matched with the two groups of jacks 36, so that the slide rod 37 can be positioned when being retracted and slid out, and the bottom plate 5 can be limited when the slide rod 37 is matched with the top plate 33 to be slid out, thereby reducing the damage of equipment caused by false ejection of the equipment.

Specifically, the surface of the pull rod 34 is sleeved with a first spring 35, two ends of the first spring 35 are fixedly connected with the surfaces of the pull rod 34 and the hollow rod 31 respectively, and the pull rod 34 is convenient to control to reset by arranging the first spring 35, so that the stability of the pull rod 34 is improved.

In this embodiment: the protection device 4 comprises a fixed block 42, the fixed block 42 is fixedly connected with the surface of the lower die 1, two fixed rods 44 are fixedly connected with the surface of the fixed block 42, a movable block 43 is slidably connected with the surface of the fixed rod 44, an elastic cloth 41 is fixedly connected with one side of the movable block 43 corresponding to the fixed block 42, a rectangular hole is formed in the surface of the movable block 43, a clamping block 46 is slidably connected with the inner wall of the rectangular hole, a groove is formed in the surface of the fixed rod 44, and the clamping block 46 is clamped with the inner wall of the groove.

In this embodiment: the moving block 43 can be limited by matching the clamping block 46 with the groove on the surface of the fixed rod 44, so that the elastic cloth 41 is unfolded for protection discharging.

Specifically, the surface fixedly connected with of fixture block 46 draws piece 45, and slide hole has been seted up on the surface of movable block 43, draws piece 45 and slide the inner wall sliding connection in hole, through setting up drawing piece 45, is convenient for control fixture block 46 and removes, improves the usability.

Specifically, the second springs 47 are fixedly connected to one side of the clamping block 46 corresponding to the inner wall of the rectangular hole on the surface of the moving block 43, and the number of the second springs 47 is two.

In this embodiment: by arranging the second spring 47, the fixture block 46 is convenient to control to reset, and the binding effect of the fixture block 46 is improved.

Working principle: when the die is used for blanking, the ejector pin body 2 pushes out materials through the bottom plate 5 moving in the guide post 6, the third spring 7 drives the ejector pin and the bottom plate 5 to reset, by arranging the auxiliary device 3, when equipment is needed to be used, the travel of the bottom plate 5 can be reduced through the matching of the hollow rod 31 with the top plate 33 and the protective pad 32, meanwhile, the first spring 35 of the pull rod 34 is pulled to bear force, when the sliding rod 37 and the top plate 33 slide in the hollow rod 31 to a certain position, the pull rod 34 is released, the first spring 35 drives the pull rod 34 to be inserted into the jack 36 on the surface of the sliding rod 37, at the moment, the top plate 33 can limit the bottom plate 5 to move, the auxiliary device 3 is arranged, the auxiliary equipment is convenient for ejecting and blanking, the redundant travel of the existing ejection mechanism can be effectively reduced when the ejection mechanism is ejected, so that the blanking time is prolonged, and unnecessary stroke easily causes ejection mechanism's spring to receive extrusion and influence life-span phenomenon, the mould has been reduced when finalizing the design, ejection mechanism appears the mistake and pushes up the impaired condition of thimble, and then the holistic practicality of equipment has been improved, through setting up protection device 4, when equipment is used to needs, sliding movable block 43 in dead lever 44, movable block 43 pulls elastic cloth 41, when elastic cloth 41 is expanded completely, second spring 47 release elasticity, drive fixture block 46 and reset, make fixture block 46 insert in the recess on dead lever 44 surface, can accomplish the use, through setting up protection device 4, be convenient for protect equipment, can effectually reduced equipment when not using, spring department gets into dust and rubbish easily, when leading to follow-up use, easily cause the phenomenon that spring wear card is dead can't ejecting unloading, and then the holistic protectiveness of equipment has been improved.

Claims

1. The utility model provides an improved generation ejection mechanism, includes bed die (1) and auxiliary device (3), its characterized in that: the inner wall of bed die (1) is provided with four guide posts (6), the surface sliding connection of guide post (6) has bottom plate (5), the surface cover of guide post (6) is equipped with third spring (7), the both ends of third spring (7) respectively with the fixed surface connection of bed die (1) and bottom plate (5), the surface of bottom plate (5) is provided with two thimble bodies (2), auxiliary device (3) set up on the surface of bottom plate (5), auxiliary device (3) include hollow pole (31), the number of hollow pole (31) has two, two hollow pole (31) and the inner wall fixed connection of bottom plate (5), the inner wall sliding connection of hollow pole (31) has slide bar (37), the one end fixedly connected with roof (33) of slide bar (37).

2. An improved ejection mechanism according to claim 1, wherein: the surface of roof (33) is fixedly connected with protection pad (32), the transversal circular of protection pad (32).

3. An improved ejection mechanism according to claim 1, wherein: the surface of hollow pole (31) has seted up the round hole, the inner wall sliding connection of round hole has pull rod (34), two sets of jacks (36) have been seted up on the surface of slide bar (37), the inner wall grafting of pull rod (34) and jack (36).

4. An improved ejection mechanism according to claim 3, wherein: the surface of the pull rod (34) is sleeved with a first spring (35), and two ends of the first spring (35) are fixedly connected with the surfaces of the pull rod (34) and the hollow rod (31) respectively.

5. An improved ejection mechanism according to claim 1, wherein: the surface of bed die (1) is provided with protection device (4), the number of protection device (4) has two, protection device (4) are including fixed block (42), fixed block (42) and the fixed surface of bed die (1) are connected, the fixed surface of fixed block (42) is connected with two dead levers (44), the surface sliding connection of dead lever (44) has movable block (43), one side fixedly connected with elastic cloth (41) that movable block (43) corresponds with fixed block (42), rectangular hole has been seted up to the surface of movable block (43), rectangular hole's inner wall sliding connection has fixture block (46), the recess has been seted up on the surface of dead lever (44), fixture block (46) and the inner wall joint of recess.

6. An improved ejection mechanism as in claim 5 wherein: the surface of fixture block (46) is fixedly connected with draws piece (45), slide hole has been seted up on the surface of movable block (43), draw piece (45) and slide the inner wall sliding connection in hole.

7. An improved ejection mechanism as in claim 5 wherein: and one side of the clamping block (46) corresponding to the inner wall of the rectangular hole on the surface of the moving block (43) is fixedly connected with second springs (47), and the number of the second springs (47) is two.