CN215849388U - Injection mold for manufacturing barrel body of paper shredder - Google Patents

Abstract

The utility model relates to the technical field of molds, in particular to an injection mold for manufacturing a barrel body of a paper shredder, which comprises a base, a concave mold frame and a forming mold, wherein the concave mold frame is fixed above the base through a fixing rod, the forming mold is connected with the middle part of the inner bottom end of the concave mold frame, the inner side of the concave mold frame and the periphery of the forming mold are provided with mold plates, a left mold plate and a right mold plate are respectively attached to the left end and the right end of a front mold plate and a rear mold plate, two spring return rods are fixed between the outer side of each mold plate and the inner wall of the concave mold frame, and the lower end of the outer side of each mold plate is fixed with an upper inclined block; through moulding plastics the plastic raw materials to the clearance between four templates and the moulded die, after staving injection moulding, make four templates keep away from the staving outer wall around, the rethread stripper up ejecting staving to prevent that staving outer wall and template inner wall from producing the friction, take place in order to avoid the serious condition of staving outer wall wearing and tearing, and be convenient for quick take out the staving from the moulded die.

Description

Injection mold for manufacturing barrel body of paper shredder

Technical Field

The utility model relates to the technical field of molds, in particular to an injection mold for manufacturing a barrel body of a paper shredder.

Background

The staving is usually installed in the kneader and is used for depositing the shredded paper, and in the staving production process, because the staving is made by plastics usually, therefore the staving all carries out injection moulding through injection mold, but present injection mold who is used for making the kneader staving, the staving carries out injection moulding through the moulded die of shaping intracavity usually, because the inside volume of shaping chamber is difficult to enlarge, the outer wall that leads to the staving easily produces great friction with the inner wall of template, so that staving outer wall wearing and tearing are serious, lead to the staving to be difficult to take out from the moulded cavity even, seriously influence and get the material convenience, and during the staving injection moulding, be difficult to with the quick cooling forming of staving, thereby can influence staving cooling forming's speed, lead to production efficiency to descend.

SUMMERY OF THE UTILITY MODEL

The utility model provides an injection mold for manufacturing a barrel body of a paper shredder, which aims to solve the problems that the outer wall of the barrel body is easy to generate larger friction with the inner wall of a template, so that the outer wall of the barrel body is seriously abraded, the material taking convenience is influenced, and the barrel body is difficult to be rapidly cooled and molded in the background technology.

In order to solve the problems of the prior art, the utility model discloses an injection mold for manufacturing a barrel body of a paper shredder, which comprises a base, a concave mold frame and a forming mold, wherein the concave mold frame is fixed above the base through a fixed rod, and the forming mold is connected with the middle part of the inner bottom end of the concave mold frame:

the inner side of the concave die set is provided with templates around the periphery of the forming die, the left template and the right template are respectively attached to the left end and the right end of the front template and the rear template, two spring return rods are fixed between the outer side of each template and the inner wall of the concave die set, the lower end of the outer side of each template is fixed with an upper inclined block, the lower end of each upper inclined block is provided with a lower inclined block, an ejector rod is fixed below each lower inclined block, the upper end of the forming die is provided with a butt joint groove, a discharging plate is matched in the butt joint groove, the middle end in the forming die is fixed with an electric telescopic shaft, the outer side in the forming die is provided with a cooling cavity, and a cooling box is arranged below the concave die set.

Furthermore, four corners of the upper end of the base are welded with telescopic columns, an upper die base located above the four templates is fixed between the upper ends of the telescopic columns, and an injection molding channel is formed in the middle end of the inner portion of the upper die base.

Furthermore, a hydraulic cylinder is welded in the middle of the upper end of the base, a supporting plate is fixed to the upper end of the hydraulic cylinder, the lower end of the ejector rod penetrates through the lower surface of the concave die frame in a sliding mode, and the lower end of the ejector rod is fixed to the upper end of the supporting plate.

Furthermore, the cooling box is fixed at the upper end of the supporting plate, the right lower end of the cooling box is communicated with a water pump, the upper end of the water pump is communicated with a water inlet telescopic pipe, and the upper end of the water inlet telescopic pipe sequentially penetrates through the concave mould frame and the bottom end of the forming mould.

Furthermore, the upper end of the water inlet telescopic pipe penetrates through the right part of the bottom end in the cooling cavity, the left side of the upper end of the cooling box is communicated with a water outlet telescopic pipe, the upper end of the water outlet telescopic pipe sequentially penetrates through the concave mould frame and the bottom end of the forming mould, and the upper end of the water outlet telescopic pipe penetrates through the left part of the bottom end in the cooling cavity.

Furthermore, the left side of the inner wall of the cooling box is connected with a plurality of semiconductor refrigerating sheets.

Furthermore, the upper end of the power output end of the electric telescopic shaft penetrates out of the forming die in a sliding mode, the upper end of the power output end of the electric telescopic shaft extends into the butt joint groove, the upper end of the electric telescopic shaft is connected with the lower end of the discharging plate, and a waterproof sleeve is sleeved at the upper end of the inner portion of the cooling cavity and on the periphery of the power output end of the electric telescopic shaft.

Furthermore, the bottom end in the concave mould frame and the periphery of the forming mould are connected with a clip-shaped bottom plate, and the four templates are respectively attached to the periphery of the clip-shaped bottom plate.

Compared with the prior art, the utility model has the following beneficial effects:

through moulding plastics the plastic raw materials to the clearance between four templates and the moulded die, after staving injection moulding, make four templates keep away from the staving outer wall around, the rethread stripper up ejecting staving, thereby prevent that staving outer wall and template inner wall from producing the friction, in order to avoid the serious condition of staving outer wall wearing and tearing to take place, and be convenient for quick take out the staving from the moulded die, guaranteed to get the material convenience, and add the coolant liquid toward the cooling intracavity, do benefit to and make the moulded die cool off fast, the moulded die then cools off the staving inner wall fast, do benefit to the cooling forming of acceleration staving, thereby the production forming's of staving efficiency has been improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the female scaffold of the present invention;

FIG. 3 is a schematic top view of the female mold frame of the present invention;

FIG. 4 is a schematic bottom view of the female mold frame of the present invention;

fig. 5 is a schematic view of the overall discharging structure of the utility model.

In FIGS. 1-5: the device comprises a base 1, a concave die carrier 2, a forming die 3, a die plate 4, a spring return rod 5, an upper inclined block 6, a lower inclined block 7, an ejector rod 8, a butt joint groove 9, a discharging plate 10, a supporting plate 11, a cooling box 12, a water inlet telescopic pipe 13, a water outlet telescopic pipe 14, a semiconductor refrigeration sheet 15, a hydraulic cylinder 16, a water pump 17, an upper die base 18, an injection molding channel 19, a telescopic column 20, a return bottom plate 21, a cooling cavity 22, an electric telescopic shaft 23 and a waterproof sleeve 24.

Detailed Description

Please refer to fig. 1 to 5:

an injection mold for manufacturing a barrel body of a paper shredder comprises;

the die comprises a base 1, a concave die carrier 2 and a forming die 3, wherein the concave die carrier 2 is fixed above the base 1 through a fixing rod, the forming die 3 is connected with the middle part of the inner bottom end of the concave die carrier 2, the periphery of the inner side of the concave die carrier 2 and the periphery of the forming die 3 is provided with a die plate 4, a left die plate 4 and a right die plate 4 are respectively attached to the left end and the right end of a front die plate 4 and a rear die plate 4, the lower end of the outer side of each die plate 4 is fixed with an upper inclined block 6, the lower end of each upper inclined block 4 is provided with a lower inclined block 7, a mandril 8 is fixed below each lower inclined block 7, four corners of the upper end of the base 1 are welded with telescopic columns 20, an upper die base 18 positioned above the four die plates 4 is fixed between the upper ends of the four telescopic columns 20, the middle end of the inner part of the upper die base 18 is provided with an injection molding channel 19, and the middle part of the upper end of the base 1 is welded with a hydraulic cylinder 16, a support plate 11 is fixed at the upper end of the hydraulic cylinder 16, the lower end of the ejector rod 8 penetrates through the lower surface of the concave mould frame 2 in a sliding manner, the lower end of the ejector rod 8 is fixed with the upper end of the support plate 11, a return type bottom plate 21 is connected to the inner bottom end of the concave mould frame 2 and positioned at the periphery of the forming mould 3, and four templates 4 are respectively attached to the periphery of the return type bottom plate 21;

specifically, firstly, the hydraulic cylinder 16 is started and drives the support plate 11, the ejector rod 8 and the lower inclined block 7 to move upwards, the lower inclined block 7 pushes the template 4 inwards along the inclined plane of the upper inclined block 6, so that the lower ends of the inner sides of the four templates 4 are sequentially attached to the periphery of the square bottom plate 21, meanwhile, the left template 4 and the right template 4 are attached to the left end and the right end of the front template 4 and the rear template 4, then the upper die base 18 is pushed downwards through an external hydraulic telescopic shaft, the telescopic column 20 is pressed downwards by the upper die base 18 until the upper die base 18 covers the upper ends of the four templates 4, at the moment, the hydraulic cylinder 16 stops working, then, the plastic raw material is injected into gaps between the four templates 4 and the forming die 3 through the injection molding channel 19, and accordingly, the barrel body is favorable for injection molding on the periphery of the forming die 3.

Two spring return rods 5 are fixed between the outer side of each template 4 and the inner wall of the concave mould frame 2;

further, because template 4 can extension spring return rod 5 when being close to each other, after staving injection moulding, restart pneumatic cylinder 16 and drive backup pad 11 once more, ejector pin 8 moves down together with piece 7 to one side down, the resilience force of reunion spring return rod 5 moves template 4 outward, thereby make four template 4 keep away from the staving outer wall around, when the staving up shifts out moulded die 3, thereby prevent that staving outer wall and 4 inner walls of template from producing the friction, take place in order to avoid the serious condition of staving outer wall wearing and tearing.

The upper end of the forming die 3 is provided with a butt joint groove 9, a discharging plate 10 is matched in the butt joint groove 9, an electric telescopic shaft 23 is fixed at the middle end in the forming die 3, the upper end of the power output end of the electric telescopic shaft 23 penetrates through the forming die 3 in a sliding mode, the upper end of the power output end of the electric telescopic shaft 23 extends into the butt joint groove 9, and the upper end of the electric telescopic shaft 23 is connected with the lower end of the discharging plate 10;

further, in order to improve the convenience when the staving is taken out, then start electric telescopic shaft 23, electric telescopic shaft 23 power take off end's upper end then drives stripper 10 and up shifts out butt joint groove 9, and stripper 10 is then up ejecting staving to be convenient for quick take out the staving from moulded die 3, guaranteed to get the material convenience.

A cooling cavity 3 is formed in the outer side of the inner part of the forming die 3, a cooling box 12 is arranged below the concave die carrier 2, the cooling box 12 is fixed at the upper end of the supporting plate 11, the right lower end of the cooling box 12 is communicated with a water pump 11, the upper end of the water pump 11 is communicated with a water inlet telescopic pipe 13, the upper end of the water inlet telescopic pipe 13 sequentially penetrates through the concave die carrier 2 and the bottom end of the forming die 3, and the upper end of the water inlet telescopic pipe 13 penetrates into the right part of the bottom end in the cooling cavity 22;

further, in order to improve the cooling shaping's of staving efficiency, consequently at a water feeding pipe of cooling tank 12 upper end intercommunication, pour into the coolant liquid into through the water feeding pipe in cooling tank 12, then start water pump 17 and through intaking flexible pipe 13 with coolant liquid pump sending to cooling chamber 22 in, do benefit to and make moulded die 3 cool off fast, moulded die 3 then cools off the staving inner wall fast, do benefit to the cooling shaping of acceleration of staving to the production shaping's of staving efficiency has been improved.

A water outlet telescopic pipe 14 is communicated with the left side of the upper end of the cooling box 12, the upper end of the water outlet telescopic pipe 14 sequentially penetrates through the concave mould frame 2 and the bottom end of the forming mould 3, the upper end of the water outlet telescopic pipe 14 penetrates through the left part of the bottom end in the cooling cavity 22, and the left side of the inner wall of the cooling box 12 is connected with a plurality of semiconductor refrigerating sheets 15;

further, the coolant liquid that finishes the heat transfer in the cooling chamber 22 enters into the cooling box 12 through the flexible pipe 14 that goes out water, restart semiconductor refrigeration piece 15 and cool off the coolant liquid, do benefit to the recycle coolant liquid, the waste of coolant liquid has been reduced, environmental protection more, flexible pipe 13 of intaking and flexible pipe 14 of going out water all have the elasticity moreover, consequently, backup pad 11 is when reciprocating, flexible pipe 13 of intaking and flexible pipe 14 of going out water can stretch out and draw back, the smooth and easy nature of backup pad 11 when reciprocating has been guaranteed.

A waterproof sleeve 24 is sleeved at the upper end inside the cooling cavity 22 and on the periphery of the power output end of the electric telescopic shaft 23;

further, because waterproof cover 24 has been worn to alternate in the upper end of electric telescopic shaft 23 power take off end, when electric telescopic shaft 23 power take off end was through cooling chamber 22, combine waterproof cover 24 to the protection of electric telescopic shaft 23 power take off end, prevent that electric telescopic shaft 23 power take off end from rustting, effectually guaranteed electric telescopic shaft 23 life.

Claims (8)

1. The utility model provides an injection mold for making kneader staving, includes base (1), spill die carrier (2) and moulded die (3), spill die carrier (2) are fixed in through the dead lever base (1) top, moulded die (3) meet in the middle part of bottom in spill die carrier (2), its characterized in that:

the inner side of the concave die carrier (2) and the periphery of the forming die (3) are all provided with templates (4), the left and right templates (4) are respectively attached to the left and right ends of the front and rear templates (4), two spring return rods (5) are respectively fixed between the outer side of each template (4) and the inner wall of the concave die carrier (2), the lower end of the outer side of each template (4) is fixed with an upper inclined block (6), the lower end of each upper inclined block (4) is provided with a lower inclined block (7), an ejector rod (8) is fixed below each lower inclined block (7), the upper end of the forming die (3) is provided with a butt joint groove (9), a discharging plate (10) is matched in the butt joint groove (9), the middle end in the forming die (3) is fixed with an electric telescopic shaft (23), the outer side in the forming die (3) is provided with a cooling cavity (3), and a cooling box (12) is arranged below the concave mould frame (2).

2. The injection mold for manufacturing the barrel of the paper shredder according to claim 1, wherein: base (1) upper end four corners all welds and has flexible post (20), four be fixed with between flexible post (20) upper end and be located four upper die base (18) above template (4), open in the inside middle-end of upper die base (18) has injection moulding passageway (19).

3. The injection mold for manufacturing the barrel of the paper shredder according to claim 1, wherein: the base (1) upper end middle part welding has pneumatic cylinder (16), pneumatic cylinder (16) upper end is fixed with backup pad (11), ejector pin (8) lower extreme slides and runs through below spill die carrier (2), ejector pin (8) lower extreme with backup pad (11) upper end is fixed.

4. The injection mold for manufacturing the barrel of the paper shredder according to claim 3, wherein: the cooling box (12) is fixed at the upper end of the supporting plate (11), the right lower end of the cooling box (12) is communicated with a water pump (11), the upper end of the water pump (11) is communicated with a water inlet telescopic pipe (13), and the upper end of the water inlet telescopic pipe (13) sequentially penetrates through the concave mould frame (2) and the bottom end of the forming mould (3).

5. The injection mold for manufacturing the barrel of the paper shredder according to claim 4, wherein: the upper end of the water inlet telescopic pipe (13) penetrates into the right part of the inner bottom end of the cooling cavity (22), the left side of the upper end of the cooling box (12) is communicated with a water outlet telescopic pipe (14), the upper end of the water outlet telescopic pipe (14) sequentially penetrates through the bottom ends of the concave mould base (2) and the forming mould (3), and the upper end of the water outlet telescopic pipe (14) penetrates into the left part of the inner bottom end of the cooling cavity (22).

6. The injection mold for manufacturing the barrel of the paper shredder according to claim 1, wherein: the left side of the inner wall of the cooling box (12) is connected with a plurality of semiconductor refrigerating sheets (15).

7. The injection mold for manufacturing the barrel of the paper shredder according to claim 1, wherein: the upper end of the power output end of the electric telescopic shaft (23) penetrates through the upper surface of the forming die (3) in a sliding mode, the upper end of the power output end of the electric telescopic shaft (23) extends into the butt joint groove (9), the upper end of the electric telescopic shaft (23) is connected with the lower end of the discharging plate (10), and a waterproof sleeve (24) is sleeved at the upper end inside the cooling cavity (22) and on the periphery of the power output end of the electric telescopic shaft (23).

8. The injection mold for manufacturing the barrel of the paper shredder according to claim 1, wherein: the inner bottom end of the concave mould frame (2) is positioned on the periphery of the forming mould (3) and is connected with a square-shaped bottom plate (21), and four templates (4) are respectively attached to the periphery of the square-shaped bottom plate (21).

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