Electric permanent magnet quick die changing system

Abstract

The utility model relates to an electro-permanent magnetic quick mold changing system, which is characterized in that a pit is arranged on the bottom surface of an injection molding machine body, the pit is positioned on the front side of the initial position of an electro-permanent magnetic chuck, a lifting mechanism is arranged in the pit, and a lower side limiting plate is fixed at the lifting end of the lifting mechanism; the injection molding machine body is symmetrically provided with stand column type supports on the left side and the right side of the electro-permanent magnetic chuck, a horizontal pushing mechanism is mounted on the stand column type supports, a pushing plate is fixed at the pushing end of the horizontal pushing mechanism, and the lower side limiting plate, the left pushing plate and the right pushing plate can enter or exit from the front side area of the initial position of the electro-permanent magnetic chuck; the device has the advantages that the limiting plate is arranged on the lower side of the front side of the initial position of the electro-permanent magnetic chuck and used for limiting the falling position of a mold, and the pushing plates are arranged on the left side and the right side of the initial position of the electro-permanent magnetic chuck and used for pushing the falling mold to the middle position. And the replacement efficiency and safety of the mold are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric permanent magnet change mould technology field especially, a kind of electric permanent magnet quick change mould system. BACKGROUND

[0002] Injection molding machine includes movable die and fixed die, by the clamping of movable die and fixed die, the injection molding of product can be realized, movable die fixed die needs to be replaced according to the change of product modeling, to facilitate the quick replacement of mould, currently injection molding machine mostly uses electric permanent magnet chuck to adsorb or release mould.

[0003] As Figure 1 As shown in figure, it is the structure of the injection molding machine commonly seen in workshop, including electric permanent magnet fixed chuck for adsorbing or releasing fixed die and electric permanent magnet movable chuck for adsorbing or releasing movable die. When installing movable die and fixed die, it needs to use girder car to cooperate to transport mould (when installing, movable die and fixed die are in the clamped state) to the upper of electric permanent magnet movable chuck, then slowly down, after artificial adjustment centering, electric permanent magnet movable chuck magnetically adsorbs mould, then electric permanent magnet movable chuck moves the adsorbed mould to the place of electric permanent magnet fixed chuck, electric permanent magnet fixed chuck magnetically adsorbs mould, mould is split, electric permanent magnet movable chuck drives movable die to reset, and electric permanent magnet fixed chuck adsorbs fixed die.

[0004] In the above-mentioned mould changing process, artificial cooperation mechanical adjustment centering is needed, which has certain danger and consumes long time, and does not help to improve production efficiency.

[0005] Based on this, the present case is proposed. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing a kind of electric permanent magnet quick change mould system, to reduce manual participation, to solve the above-mentioned defects.

[0007] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0008] A kind of electric permanent magnet quick change mould system, including injection molding machine body, electric permanent magnet movable chuck is installed on the injection molding machine body, the bottom surface of the injection molding machine body is provided with pit, pit is located at the front side of the initial position of electric permanent magnet movable chuck, lifting mechanism is installed in pit, the lifting end of lifting mechanism is fixed with downside limit plate, the injection molding machine body is located at the left and right sides of electric permanent magnet movable chuck and is provided with column type support symmetrically, horizontal push mechanism is installed on column type support, the push end of horizontal push mechanism is fixed with push plate, downside limit plate, left side push plate and right side push plate can all enter or exit the front side area of the initial position of electric permanent magnet movable chuck.

[0009] Furthermore, the lifting mechanism includes a housing, a bidirectional threaded screw, a screw drive unit, two screw nuts, two connecting rods, a guide rod, and a linear bearing. The bidirectional threaded screw is horizontally arranged inside the housing and rotatably connected to the side wall of the housing. The two screw nuts are respectively threaded onto the threads on both sides of the bidirectional threaded screw. The inner wall of the housing is provided with a track, and the screw nuts are slidably connected to the track. One end of the connecting rod is rotatably connected to the screw nuts, and the other end is rotatably connected to the back of the lower limiting plate. The linear bearing is fixed to the side wall of the housing and is vertically arranged. The guide rod is installed on the linear bearing and its upper end is fixedly connected to the back of the lower limiting plate. The screw drive unit is fixed to the housing and is used to drive the screw to rotate. The housing is installed in a recess.

[0010] Furthermore, the horizontal pushing mechanism includes a housing, a bidirectional threaded lead screw, a lead screw drive unit, two lead screw nuts, two connecting rods, a guide rod, and a linear bearing. The bidirectional threaded lead screw is vertically arranged inside the housing and rotatably connected to the side wall of the housing. The two lead screw nuts are respectively threaded onto the threads on both sides of the bidirectional threaded lead screw. A track is provided on the inner wall of the housing, and the lead screw nuts are slidably connected to the track. One end of the connecting rod is rotatably connected to the lead screw nuts, and the other end is rotatably connected to the back of the pushing plate. The linear bearing is fixed to the side wall of the housing and is horizontally arranged. The guide rod is installed on the linear bearing and one end is fixedly connected to the back of the pushing plate. The lead screw drive unit is fixed on the housing and is used to drive the lead screw to rotate. The housing is mounted on a column-type bracket.

[0011] Furthermore, the front of the lower limiting plate is provided with smooth strips.

[0012] Furthermore, the front of the push plate is arranged with smooth strips.

[0013] Furthermore, the column-type support is a liftable structure.

[0014] The advantages of this utility model are as follows: a limiting plate is set on the lower front side of the initial position of the electro-permanent magnet chuck to limit the position of the mold falling; and push plates are set on the left and right sides of the initial position of the electro-permanent magnet chuck to push the falling mold to the center position. In this way, the difficulty of changing molds for operators is reduced, the operation is simple, and the efficiency and safety of mold changing are improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of mold changing in an injection molding machine in the background art;

[0016] Figure 2 This is a schematic diagram of the electro-permanent magnet rapid mold changing system in the embodiment;

[0017] Figure 3 This is a schematic diagram of the horizontal pushing mechanism on the column-type support in the embodiment;

[0018] Figure 4 This is a schematic diagram of the lifting mechanism inside the recess in the embodiment;

[0019] Figure 5 This is a schematic diagram of the structure of the push plate / lower limiting plate in the embodiment;

[0020] Figure 6 This is a side view of the left and right column-type brackets installed on the left and right sides of the injection molding machine in the embodiment.

[0021] Figure 7 This is a schematic diagram showing the location of the recesses on the injection molding machine body in the embodiment;

[0022] Label Explanation

[0023] 1. Injection molding machine; 2. Electro-permanent magnet moving chuck; 3. Electro-permanent magnet stationary chuck; 4. Moving mold; 5. Stationary mold; 6. Recess; 7. Lower limit plate; 8. Push plate; 9. Column type bracket; 10. Chassis; 11. Two-way threaded screw; 12. Screw drive unit; 13. Screw nut block; 14. Connecting rod; 15. Guide rod; 16. Linear bearing; 17. Track; 18. Flow bar; 19. Gantry crane. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the embodiments. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" etc. indicated by the accompanying drawings are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0025] This embodiment proposes an electro-permanent magnet rapid mold changing system, which is an improvement on the existing injection molding machine body structure. The existing injection molding machine body is equipped with an electro-permanent magnet moving chuck 2 and an electro-permanent magnet stationary chuck 3, such as... Figure 7 As shown, a recess 6 is provided on the bottom surface of the injection molding machine body. The recess 6 is located in front of the initial position of the electro-permanent magnet chuck 2. The bottom surface of the injection molding machine body itself has a reserved cavity, and a deck is covered on the top surface of the cavity to reduce the cost of the machine body and facilitate the layout of various pipelines. The recess 6 is set by utilizing the reserved cavity, which can minimize the modification cost and modification difficulty.

[0026] like Figure 2 As shown, a lifting mechanism is installed in the recess 6, and a lower limiting plate 7 is fixed to the lifting end of the lifting mechanism. Figure 2 and Figure 6As shown, the injection molding machine 1 has symmetrical column-type supports 9 on the left and right sides of the electro-permanent magnet chuck 2. A horizontal pushing mechanism is installed on the column-type supports 9, and a pushing plate 8 is fixed to the pushing end of the horizontal pushing mechanism. The lower limiting plate 7, the left pushing plate 8, and the right pushing plate 8 can all enter or exit the area in front of the initial position of the electro-permanent magnet chuck 2. By raising and lowering the lower limiting plate 7, the falling position of the mold can be positioned. Therefore, according to the size of the mold, raising and lowering the lower limiting plate 7 to the predetermined position in advance can achieve vertical positioning of the mold. The left and right pushing plates 8 are symmetrically arranged. When the vertical position of the mold is fixed, the mold can be centered in the left and right directions by synchronously moving the left and right pushing plates 8.

[0027] like Figure 6 As shown, the column-type bracket 9 is externally mounted on the left and right sides of the injection molding machine 1 body, and can be directly installed on both sides of the existing injection molding machine 1, greatly reducing the modification cost. To adapt to different models of injection molding machines 1, the column-type bracket 9 in this embodiment has a height-adjustable structure to improve applicability.

[0028] The lifting mechanism and the horizontal pushing mechanism in this embodiment are basically the same.

[0029] like Figure 4 The diagram shows the structure of the lifting mechanism, which includes a housing 10, a bidirectional threaded screw 11, a screw drive unit 12, two screw nuts 13, two connecting rods 14, a guide rod 15, and a linear bearing 16. The bidirectional threaded screw 11 is horizontally arranged inside the housing 10 and rotatably connected to the side wall of the housing 10. The two screw nuts 13 are respectively threaded onto the threads on both sides of the bidirectional threaded screw 11. The inner wall of the housing 10 is provided with a track 17, and the screw nuts 13 are slidably connected to the track 17. One end of the connecting rod 14 is rotatably connected to the screw nuts 13, and the other end is rotatably connected to the back of the lower limiting plate 7. The linear bearing 16 is fixed to the side wall of the housing 10 and is vertically arranged. The guide rod 15 is installed on the linear bearing 16 and its upper end is fixedly connected to the back of the lower limiting plate 7. The screw drive unit 12 is fixed to the housing 10 and is used to drive the screw to rotate. The housing 10 is installed in the recess 6. The lead screw drive unit 12 drives the lead screw to rotate, so that the two lead screw blocks 13 move relative to each other or towards each other, thereby causing the lower limit plate 7 to rise or fall through the connecting rod 14.

[0030] like Figure 3The diagram shows the structure of a horizontal pushing mechanism, including a housing 10, a bidirectional threaded lead screw 11, a lead screw drive unit 12, two lead screw nut blocks 13, two connecting rods 14, a guide rod 15, and a linear bearing 16. The bidirectional threaded lead screw 11 is vertically arranged inside the housing 10 and rotatably connected to the side wall of the housing 10. The two lead screw nut blocks 13 are respectively threaded onto the threads on both sides of the bidirectional threaded lead screw 11. A track 17 is provided on the inner wall of the housing 10, and the lead screw nut blocks 13 are slidably connected to the track 17. One end of the connecting rod 14 is rotatably connected to the lead screw nut block 13, and the other end is rotatably connected to the back of the pushing plate 8. The linear bearing 16 is fixed to the side wall of the housing 10 and is horizontally arranged. The guide rod 15 is installed on the linear bearing 16 and one end is fixedly connected to the back of the pushing plate 8. The lead screw drive unit 12 is fixed on the housing 10 and is used to drive the lead screw to rotate. The housing 10 is mounted on a column-type support 9. The lead screw drive unit 12 drives the lead screw to rotate, so that the two lead screw blocks 13 can move relative to each other or towards each other, thereby allowing the push plate 8 to move horizontally in the left and right directions through the connecting rod 14.

[0031] like Figure 5 The diagram shows the structure of the push plate 8 or the lower limiting plate 7. To facilitate the sliding of the mold when it comes into contact with the push plate 8 / lower limiting plate 7 (the sliding here includes: when the mold falls onto the lower limiting plate 7, the left and right push plates 8 push the mold to adjust left and right; when the mold is in the center, the electro-permanent magnet suction cup 2 magnetically adsorbs the mold, and the mold contacts the lower limiting plate 7 and the push plate 8 on three sides), this embodiment provides a flow strip 18 on the front side of the push plate 8 / lower limiting plate 7 to reduce the frictional force of sliding when in contact.

[0032] The above embodiments are only used to explain the concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.

Claims

1. An electro-permanent magnet rapid mold changing system, comprising an injection molding machine body, wherein an electro-permanent magnet chuck is mounted on the injection molding machine body, characterized in that: The injection molding machine body has a recess on its bottom surface, located in front of the initial position of the electro-permanent magnet chuck. A lifting mechanism is installed in the recess, and a lower limiting plate is fixed to the lifting end of the lifting mechanism. The injection molding machine body is symmetrically provided with column-type supports on the left and right sides of the electro-permanent magnet chuck. A horizontal pushing mechanism is installed on the column-type supports, and a pushing plate is fixed to the pushing end of the horizontal pushing mechanism. The lower limiting plate, the left pushing plate, and the right pushing plate can all enter or exit the area in front of the initial position of the electro-permanent magnet chuck.

2. The electro-permanent magnet rapid mold changing system as described in claim 1, characterized in that, The lifting mechanism includes a housing, a bidirectional threaded screw, a screw drive unit, two lead screw blocks, two connecting rods, a guide rod, and a linear bearing. The bidirectional threaded screw is horizontally arranged inside the housing and rotatably connected to the side wall of the housing. The two lead screw blocks are threadedly connected to the threads on both sides of the bidirectional threaded screw. The inner wall of the housing is provided with a track, and the lead screw blocks are slidably connected to the track. One end of the connecting rod is rotatably connected to the lead screw block, and the other end is rotatably connected to the back of the lower limiting plate. The linear bearing is fixed to the side wall of the housing and is vertically arranged. The guide rod is installed on the linear bearing and its upper end is fixedly connected to the back of the lower limiting plate. The screw drive unit is fixed to the housing and is used to drive the screw to rotate. The housing is installed in a recess.

3. The electro-permanent magnet rapid mold changing system as described in claim 1, characterized in that, The horizontal pushing mechanism includes a housing, a bidirectional threaded lead screw, a lead screw drive unit, two lead screw nuts, two connecting rods, a guide rod, and a linear bearing. The bidirectional threaded lead screw is vertically arranged inside the housing and rotatably connected to the side wall of the housing. The two lead screw nuts are respectively threaded onto the threads on both sides of the bidirectional threaded lead screw. A track is provided on the inner wall of the housing, and the lead screw nuts are slidably connected to the track. One end of the connecting rod is rotatably connected to the lead screw nuts, and the other end is rotatably connected to the back of the pushing plate. The linear bearing is fixed to the side wall of the housing and is horizontally arranged. The guide rod is installed on the linear bearing and one end is fixedly connected to the back of the pushing plate. The lead screw drive unit is fixed to the housing and is used to drive the lead screw to rotate. The housing is mounted on a column-type bracket.

4. The electro-permanent magnet rapid mold changing system as described in claim 1, characterized in that, The lower limiting plate has a smooth strip arranged on its front side.

5. The electro-permanent magnet rapid mold changing system as described in claim 1, characterized in that, The front of the push plate is arranged with smooth strips.

6. The electro-permanent magnet rapid mold changing system as described in claim 1, characterized in that, The column-type support is a liftable structure.

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