CN217834580U - Single-oil-cylinder driving type up-and-down core-pulling demoulding mechanism of vertical injection mould for filter plate handle - Google Patents

Abstract

The utility model discloses vertical injection mold's of filter plate handle single cylinder drive formula demoulding mechanism of loosing core from top to bottom, the main points of innovation scheme are: the dual-hydraulic-cylinder push-pull core-pulling demoulding mechanism is improved into a Shan Yougang driving rack gear set redirection transmission type up-down core-pulling demoulding mechanism which comprises a core-pulling driving device, an upper core-pulling device and a lower core-pulling device; the lower core-pulling device can move in a direction-changing way by depending on a rack and gear set, the upper core-pulling device and the lower core-pulling device with the mold cores or the mold inserts are hung on the core-pulling driving device, and the core-pulling driving device is driven by one to two and has the function of respectively pulling out all the mold cores and the mold inserts in the vertical direction of the injection molding piece of the filter plate handle upwards and downwards in opposite directions; the technical problems that the double-hydraulic-cylinder push-pull core-pulling demoulding mechanism is complex in structure and high in production cost, the mould is large in size, the space of injection moulding equipment is large, the double-hydraulic-cylinder push-pull opposite movement and high-low pressure oil ways are opposite and easy to connect in a wrong way, and accident potential exists are solved; the mould structure is simplified, the trouble is saved, the cost is reduced and the effect is improved.

Description

Single-oil-cylinder driving type up-and-down core-pulling demoulding mechanism of vertical injection mould for filter plate handle

Technical Field

The utility model belongs to the technical field of pressure filter plate handle injection mold, a vertical injection moulding mould's of filter plate handle automatic demoulding mechanism of loosing core is related to.

Background

Injection molding is a method for producing and molding industrial products; the injection molding is an injection molding method of a processing-free product; the injection mold is a mold and a tool for producing a required product by adopting an injection molding method; an injection molding mold for a filter plate handle is an automatic open mode injection molding mold for producing a processing-free filter plate handle, such as an automatic push-pull demolding type injection molding mold for the filter plate handle and a corresponding filter plate handle (patent application number 202120685781.8), and mainly comprises a fixed mold (namely a left handle mold) and a mold core thereof, a pouring system, a movable mold (namely a right handle mold), an ejection device, an automatic core-pulling demolding mechanism and a built-in cooling system; the integral filter plate handle is arranged in injection molding equipment and has the functions of injection molding the filter plate handle, automatically pulling cores and automatically ejecting the filter plate handle.

The automatic core-pulling demoulding mechanism is a double-hydraulic-cylinder push-pull core-pulling demoulding mechanism and mainly comprises a pull-type cylinder transmission part and a push-type cylinder transmission part; the pull type oil cylinder transmission part comprises a pull type oil cylinder, an integral slideway and a slope-shaped sliding block; the push type oil cylinder transmission part comprises a push type oil cylinder, split type slideways on two sides, double U-shaped groove sliding blocks and a transmission carriage (shared with the lower die); (1) assembling a pull type oil cylinder transmission part: the integral slideway is arranged on the split type slideways at the two sides, the slope-shaped sliding block is arranged in the integral slideway and connected with the pull type oil cylinder, and the trapezoidal insert is embedded on the slope-shaped sliding block; the function of automatically pulling the trapezoidal insert is realized; (2) assembling a pushing type oil cylinder transmission part: the two-side split type slideway is arranged below the integral type slideway, the double-U-shaped groove sliding block is arranged in the two-side split type slideway and is connected with the push type oil cylinder, and the transmission dragging plate is connected with the double-U-shaped groove sliding block; the automatic transmission tool has the functions of automatically pushing the transmission carriage and driving the cylindrical core insert.

The filter plate handle, namely the filter press filter plate sliding support handle, has symmetrical double-sided structure, adopts the processing-free injection molding, and needs to draw core in the vertical direction in opposite directions; (1) In the vertical direction, a handle mounting hole (namely a handle mounting counter bore), a handle top hole, a handle seat hidden hole and a handle seat concave bottom are arranged; wherein, the mold cores of the handle mounting hole and the handle top hole are upwards drawn out without obstacles; the handle seat blind hole mold core and the handle seat concave bottom insert are upwards pulled out to form obstacles and can only downwards pull the core; (2) The mold is horizontally provided with a handle body cavity, a handle seat long hole and the like, and the mold is demolded by a horizontal ejection device.

The automatic core-pulling and demolding mechanism of the existing injection mold for the filter plate handle has the following defects: (1) The automatic core-pulling demoulding mechanism is a push-pull core-pulling demoulding mechanism with double hydraulic cylinders, and the double hydraulic cylinders have complicated structures and higher production cost; (2) The mold has larger volume, is integrally arranged in injection molding equipment, and occupies larger space; (3) The double hydraulic oil cylinders move in a push-pull mode in opposite directions and run asynchronously, the high-pressure oil circuit and the low-pressure oil circuit are opposite, and once workers are carelessly and easily connected in error, the potential hazards of product and equipment accidents exist in case of wrong connection of the high-pressure oil circuit and the low-pressure oil circuit.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming current filter plate handle injection mold's automatic demoulding mechanism of loosing core's defect, it is higher to solve the complicated manufacturing cost of two hydraulic cylinder plug-type demoulding mechanism of loosing core structure, and the mould volume is great to occupy injection moulding equipment's space great, and two hydraulic cylinder plug-type opposite motion, high-low pressure oil circuit connect the technical problem of mistake and existence accident potential mutually easily on the contrary, provide a vertical injection mold's of filter plate handle single cylinder drive formula demoulding mechanism of loosing core from top to bottom.

The utility model provides a brand-new technical scheme that aforementioned technical problem adopted is: a single oil cylinder driving type up-down core-pulling demoulding mechanism (hereinafter referred to as the single-driving up-down core-pulling demoulding mechanism) of a vertical injection mould of a filter plate handle has the main points of the general technical scheme that: compared with the prior art, the innovative overall structure has the prominent substantive characteristics that: the double-hydraulic-cylinder push-pull core-pulling demoulding mechanism is improved into a single-cylinder driving type up-down core-pulling demoulding mechanism, namely the single-cylinder driving rack gear set redirection transmission type up-down core-pulling demoulding mechanism comprises a core-pulling driving device, an upper core-pulling device and a lower core-pulling device, and the structure is simple and compact; the core-pulling driving device is provided with a single oil cylinder, and the upper core-pulling device is provided with four upper core-pulling rods; the lower core-pulling device, namely a redirection rack device is provided with two lower core-pulling racks, and the double racks are meshed with the gear and can move in a redirection way; the upper core-pulling device and the lower core-pulling device are hung below the core-pulling driving device and can move up and down along with the expansion of a piston rod of the oil cylinder, the four upper core-pulling rods rise to upwards pull out the mold cores of four vertical holes of the handle, and the two lower core-pulling racks fall to downwards pull out the trapezoidal insert and the blind hole mold cores at the bottom of the handle seat, so that the simultaneous up-and-down core-pulling and demolding of the filter plate handle injection molding piece in the vertical direction are realized; therefore, the technical problems that the double-hydraulic-cylinder push-pull core-pulling demoulding mechanism is complex in structure, high in production cost, large in mould size, large in space occupied by injection moulding equipment, and prone to error connection due to the fact that double hydraulic cylinders move oppositely in a push-pull mode and high-low pressure oil ways are opposite, and accident potential exists are solved. The specific design scheme of the utility model is as follows.

The core-pulling driving device, namely a single-oil-cylinder driving type core-pulling driving device, comprises a door frame type double-slideway, a lifting beam, a core-pulling oil cylinder and a beam sliding block; (1) The arranged door frame type double-slideway is a door frame type double-groove slideway, the width of the door frame type double-groove slideway corresponds to the width of the fixed mould, an oil cylinder piston rod hole is arranged on the door frame, sliding grooves are arranged in two side frames, and double mounting holes are arranged in the two side frames; (2) The lifting beam is rectangular, the length of the lifting beam corresponds to the width of a door frame type double-slideway, an oil cylinder seat with a piston rod hole is arranged in the middle of the lifting beam, and four upper core pulling rod square holes and two round rod holes with rod lifting racks are arranged at positions corresponding to the fixed mould core; (3) The core-pulling hydraulic cylinder is a core-pulling hydraulic cylinder and is provided with a cylinder piston rod, and the stroke of the piston rod is greater than the longest length of the mold core; (4) The arranged beam sliding block is a wear-resistant beam sliding block matched with the door frame type double-sliding-channel sliding chute; (5) assembling the core pulling driving device: the double-beam sliding blocks are arranged at two ends of the lifting beam to form a lifting beam with the sliding blocks; the lifting beam with the sliding block is arranged in the door frame type double-slideway; the core-pulling oil cylinder is arranged on an oil cylinder seat of the door frame type double-slideway, and an oil cylinder piston rod is connected with a lifting cross beam to form a core-pulling driving device; the lifting mechanism has the function of driving the upper core-pulling device and the lower core-pulling device to lift.

The upper core pulling device comprises an upper core pulling rod, a die core seat, an upper pulling ladder column core and an upper pulling cylindrical core; (1) The arranged upper core pulling rod is a square upper core pulling rod with a raised head, and comprises a long upper core pulling rod and a short upper core pulling rod, and the length of the long upper core pulling rod corresponds to the height from the lifting cross beam to the mold core; (2) The die core seat is a slope-shaped stepped die core seat and comprises a square die core seat and a long die core seat, the specification of the square die core seat is larger than that of a die core, and the length of the long die core seat corresponds to the thickness of the handle; (3) The arranged upper drawing ladder column core is a ladder column mold core of the handle mounting hole; (4) The upper drawing cylindrical core is arranged, namely the upper drawing cylindrical mold core of the handle top hole; and (5) assembling the upper core-pulling device: (5.1) assembling two upper ladder column core long rods: the double-upward-drawing ladder column core long rod I is hung on the front sides of two ends of the lifting cross beam, and a ladder cylindrical mold core with double-handle mounting holes can be upwards drawn out; (5.2) assembling an upper pulling ladder column core long rod II: the long mould core seat is arranged at the lower end of the upper core pulling long rod, the upper ladder pulling column core is arranged below the square long mould core seat to form an upper ladder pulling column core long rod II, the upper ladder pulling column core long rod II is hung behind the middle of the lifting cross beam, and a ladder cylindrical mould core of a middle mounting hole of the handle can be pulled out upwards; (5.3) assembling the upper pulling cylindrical core short rods: the square die core seat is arranged at the lower end of the upper core-pulling short rod, and the upper cylindrical core is arranged below the square die core seat to form an upper cylindrical core-pulling short rod; the short rod of the upper drawing cylinder core is hoisted in the front side of the middle of the lifting beam, and the handle top hole mold core can be drawn out upwards.

The lower core-pulling device, namely the redirection rack device, comprises a lower-pulling trapezoidal insert, a lower-pulling cylindrical core, a belt rod ascending rack, a belt shaft redirection gear, a lower core-pulling rack and a gear mounting box; (1) The lower-drawing trapezoidal insert is a handle seat concave bottom insert and is provided with a step lower-drawing trapezoidal insert; (2) The device comprises a handle seat blind hole mold core (a handle seat blind hole mold core below a convex part of a handle body) and a lower pulling cylindrical core (a handle seat blind hole mold core below a convex part of the handle body), wherein the upper end of a round rod of the lower pulling cylindrical core is provided with a convex ring, and the length of the rack corresponds to the stroke of a core pulling oil cylinder; (4) The belt shaft direction-changing gear is a belt single-shaft head direction-changing gear matched with the belt rod lifting rack; (5) The lower core-pulling rack is matched with the belt rod lifting rack; (6) The gear mounting box is a double-bearing box type gear mounting box, and the center distance of the double-bearing box is equal to that of the double-belt-shaft direction-changing gear; (7) assembling the lower core-pulling device: (7.1) installation of the gear device: the gear mounting box is mounted behind the middle part of the frame of the door frame type double-slideway, and the double-belt-shaft direction-changing gear is mounted on the gear mounting box to form a gear device; (7.2) assembling the left lower core-pulling device: the lower core-pulling trapezoidal insert is arranged at the lower end of the lower core-pulling rack to form a lower core-pulling rack with the insert; the lifting rack with the rod is hoisted behind the left end of the lifting beam, and the lifting rack with the rod, the bend gear with the shaft and the lower core-pulling rack with the insert are meshed to form a left lower core-pulling device; the left insert at the concave bottom of the handle seat can be drawn out downwards; (7.3) assembling the lower right core-pulling device: the lower core-pulling trapezoidal insert is arranged at the lower end of the lower core-pulling rack, and the lower core-pulling cylindrical core is arranged on a step of the lower core-pulling trapezoidal insert to form a lower core-pulling rack with the insert and the core; the lifting rack with the rod is hoisted behind the right end of the lifting beam, and the lifting rack with the rod, the bend gear with the shaft, the belt insert and the core lower core-pulling rack are meshed to form a right lower core-pulling device; the right insert of the concave bottom of the handle seat and the handle seat blind hole mold core can be drawn out downwards.

The utility model discloses the relation of connection of main spare part is: for convenience of explanation, a fixed die, a movable die and an ejection device closely related to the single-drive up-and-down core-pulling demoulding mechanism are additionally arranged; (1) assembling a single-drive upper and lower core-pulling demoulding mechanism: the fixed mold is arranged in front of the lower part of a door frame type double-slideway of the core-pulling driving device, the gear mounting box is arranged behind the middle part of a frame of the door frame type double-slideway, the upper core-pulling device and the lower core-pulling device are respectively arranged at corresponding positions of a lifting cross beam of the core-pulling driving device, and a rising rack with a rod, a bend gear with a shaft and a lower core-pulling rack with an insert or the lower core-pulling rack with the insert are meshed to form a single-drive upper and lower core-pulling demoulding mechanism; the filter plate handle injection molding part has the functions of simultaneously drawing out all mold cores and inserts in the vertical direction of the filter plate handle injection molding part upwards and downwards respectively; (2) assembly of the single-drive upper and lower core-pulling demoulding mechanism: the fixed die, the single-drive upper and lower core-pulling demoulding mechanism and the ejection device are arranged at the fixed end of the injection molding equipment, the movable die is arranged at the movable end of the injection molding equipment corresponding to the fixed die, and after the movable die and the fixed die are matched, the automatic core-pulling demoulding vertical filter plate handle injection molding die is formed; the automatic core pulling device has the functions of injection molding of the filter plate handle, automatic up-down core pulling and automatic horizontal ejection of the filter plate handle.

The utility model provides a single oil cylinder driving type up-down core-pulling demoulding mechanism of a vertical injection mould of a filter plate handle, which has the obvious advantages of single oil cylinder driving, simple and compact structure, direction change of a rack and gear set, up-down core pulling at the same time, reliable performance, smaller volume, smaller matched injection moulding equipment, energy saving, convenient installation and lower comprehensive cost; the beneficial effects are as follows: the double-hydraulic-cylinder push-pull core-pulling demoulding mechanism is improved into a Shan Yougang driving rack-gear set direction-changing transmission type up-down core-pulling demoulding mechanism, the single oil cylinder simplifies the whole structure and reduces the equipment volume, the rack-gear set direction-changing transmission replaces the original down-pulling oil cylinder, the energy is saved, the manufacturing and using cost is reduced, and the hidden danger of product and equipment accidents is eliminated; saving the trouble, reducing the cost and improving the effect.

Drawings

Fig. 1 is the schematic perspective view of the single-cylinder driving type up-down core-pulling demoulding mechanism (the door frame type double-slideway is removed for displaying the internal structure).

Fig. 2 is the utility model discloses core holder stereogram of core demoulding mechanism about single cylinder drive formula.

Fig. 3 is the utility model discloses single cylinder drive formula demoulding mechanism's loose core device and lifting beam equipment stereogram from top to bottom.

Fig. 4 is the utility model discloses core drawing demoulding mechanism and corresponding fixed mould and ejecting device assembly stereogram about single cylinder drive formula.

Fig. 5 is the corresponding three-dimensional schematic drawing of removal mould of demoulding mechanism of loosing core from top to bottom of single cylinder drive formula of the utility model.

Fig. 6 is the corresponding ejecting device three-dimensional schematic view of the core pulling demoulding mechanism about single cylinder drive formula of the utility model.

Fig. 7 is a schematic perspective view of a filter plate handle produced by using the injection molding mold for the vertical filter plate handle with automatic core pulling and demolding of the utility model.

Reference numerals are as follows: 1-ejection device, 2-gate frame type double-slideway, 3-lifting beam, 4-core-pulling oil cylinder, 5-redirection rack device, 6-upper core-pulling rod, 7-fixed mould (namely left half mould with mould core), 8-pouring gate, 9-lower core-pulling trapezoidal insert (handle base concave bottom insert), 10-mould core base, 11-upper core-pulling column (namely handle mounting hole stepped mould core), 12-beam slide block, 13-upper core-pulling cylinder (namely handle top hole mould core), 14-moving mould (namely right half mould without mould core), 15-lower core-pulling cylinder (namely handle base hidden hole mould core), 41-oil cylinder piston rod, 51-rod lifting rack, 52-shaft redirection gear, 53-lower core-pulling rack, 54-gear mounting box, 71-handle mounting hole, 72-handle body and 73-handle base.

The "up" and "down" in the mark are based on the core back.

Detailed Description

The following combines the utility model discloses drawing in the single cylinder drive formula of vertical injection mold of filter plate handle demoulding mechanism of loosing core from top to bottom embodiment is right the technical scheme in the embodiment of the utility model describes, and the embodiment that describes is only a part of preferred embodiments of the utility model, rather than whole embodiment. Based on the utility model discloses an embodiment, all other embodiments that do not have the inventiveness that the technical staff in the field made, if single cylinder drive rack and gear set changes to the single drive demoulding mechanism of loosing core from top to bottom that the transmission mode is the same, the structure is similar, all belong to the utility model discloses a protection scope.

Example 1

A single oil cylinder driving type up-down core-pulling demoulding mechanism (short for: single driving up-down core-pulling demoulding mechanism) of a vertical injection mould of a filter plate handle has the main points of the innovative general implementation scheme that: the double-hydraulic-cylinder push-pull core-pulling demoulding mechanism is improved into a single-cylinder driving type up-down core-pulling demoulding mechanism, namely the single-cylinder driving rack gear set redirection transmission type up-down core-pulling demoulding mechanism comprises a core-pulling driving device, an upper core-pulling device and a lower core-pulling device, and the structure is simple and compact; the core-pulling driving device is provided with a core-pulling single oil cylinder 4, and the upper core-pulling device is provided with four upper core-pulling rods 6; the lower core-pulling device, namely a redirection rack device, is provided with two lower core-pulling racks 53, and the double racks are engaged with the belt shaft redirection gear 52 to move in redirection; the upper core-pulling device and the lower core-pulling device are hung below the core-pulling driving device and can move up and down along with the expansion of the oil cylinder piston rod 41, the four upper core-pulling rods 6 rise to upwards pull out the mold cores of the four vertical holes of the handle, the two lower core-pulling racks 53 fall to downwards pull out the lower core-pulling trapezoidal insert 9 and the blind hole mold core 15 at the bottom of the handle seat 73, and the simultaneous vertical core-pulling and mold-releasing of the filter plate handle injection molding piece is realized; the extending of the oil cylinder piston rod 41 also has the function of automatic core installation; specific embodiments are described in detail below.

The core-pulling driving device, namely a single-oil-cylinder driving type core-pulling driving device, comprises a door frame type double-slideway 2, a lifting beam 3, a core-pulling oil cylinder 4 and a beam sliding block 12; (1) The arranged door frame type double-chute 2 is a door frame type double-groove-shaped chute, the width of the door frame type double-groove-shaped chute corresponds to that of the fixed die 7, an oil cylinder piston rod hole is formed in the door frame, sliding grooves are formed in the two side frames, and double mounting holes are formed in the two side frames; (2) The lifting beam 3 is a rectangular lifting beam 3, the length of the lifting beam 3 corresponds to the width of the door frame type double-slideway 2, an oil cylinder seat with a piston rod hole is arranged in the middle of the lifting beam, and four square holes of an upper core pulling rod 6 and two round rod holes with rod lifting racks 51 are arranged at positions corresponding to the mold cores of the fixed mold 7; (3) The core-pulling hydraulic cylinder 4 is a core-pulling hydraulic cylinder and is provided with a cylinder piston rod 41, and the stroke of the piston rod is greater than the longest mold core length; (4) The arranged beam sliding block 12 is a wear-resistant beam sliding block 12 matched with a sliding groove of the door frame type double-slideway 2; (5) assembling the core pulling driving device: the double-beam sliding blocks 12 are arranged at two ends of the lifting beam 3 to form a lifting beam with sliding blocks; the lifting beam with the sliding block is arranged in the door frame type double-slideway 2; the core-pulling oil cylinder 4 is arranged on an oil cylinder seat of the door frame type double-slideway 2, and an oil cylinder piston rod 41 is connected with the lifting beam 3 to form a core-pulling driving device; the upper core-pulling device and the lower core-pulling device are driven to move up and down oppositely on the whole.

The upper core pulling device comprises an upper core pulling rod 6, a mold core seat 10, an upper core pulling ladder column core 11 and an upper core pulling column core 13; (1) The arranged upper core-pulling rod 6 is a square upper core-pulling rod 6 with a raised head, and comprises a long upper core-pulling rod and a short upper core-pulling rod, and the length of the long upper core-pulling rod corresponds to the height of the lifting beam 3 from the mold core; (2) The die core seat 10 is a slope-shaped stepped die core seat 10 and comprises a square die core seat and a long die core seat, wherein the specification of the square die core seat is larger than that of a die core, and the length of the long die core seat corresponds to the thickness of a handle; (3) The arranged upper-drawing ladder column core 11 is a ladder column mold core of the handle mounting hole 71; (4) The upper drawing cylindrical core 13 is arranged, namely the upper drawing cylindrical mold core of the handle top hole; and (5) assembling the upper core-pulling device: (5.1) assembling two upper ladder column core long rods: the square mold core seat is arranged at the lower end of the upper core pulling long rod, the upper ladder-pulling column core 11 is arranged below the square mold core seat to form an upper ladder-pulling column core long rod I, the double upper ladder-pulling column core long rods I are hung on the front sides of the two ends of the lifting cross beam 3, and the stepped cylindrical mold cores 11 of the double-handle mounting holes 71 can be pulled out upwards; (5.2) assembling an upper pulling ladder column core long rod II: the long mold core seat is arranged at the lower end of the upper core pulling long rod, the upper core pulling ladder column 11 is arranged below the square long mold core seat to form an upper core pulling ladder column long rod II, the upper core pulling ladder column long rod II is hung behind the middle of the lifting cross beam 3, and the ladder cylindrical mold core 11 of the middle mounting hole of the handle can be pulled out upwards; (5.3) assembling the short rods with the upwards-drawn cylindrical cores: the square mould core seat is arranged at the lower end of the upper core-pulling short rod, and the upper cylindrical core 13 is arranged below the square mould core seat to form the upper cylindrical core-pulling short rod; the upper drawing cylindrical core short rod is hoisted in the front side of the middle of the lifting beam 3, and the handle top hole mold core 13 can be drawn out upwards; the mold core is used for upwards drawing out the filter plate handle injection molding part without obstacle in the vertical upward direction.

The lower core-pulling device, namely the redirection rack device 5, comprises a lower-pulling trapezoidal insert 9, a lower-pulling cylindrical core 15, a belt rod ascending rack 51, a belt shaft redirection gear 52, a lower core-pulling rack 53 and a gear mounting box 54; (1) The arranged downwards-drawing trapezoidal insert 9, namely the handle seat concave bottom insert, is the downwards-drawing trapezoidal insert 9 with steps; (2) The lower pulling cylindrical core 15, namely the handle seat blind hole mold core 15 (the handle seat blind hole mold core below the convex part of the handle main body) is arranged, and the upper end of the round rod of the lifting rack 51 with the rod is provided with a convex ring, and the length of the rack corresponds to the stroke of the core pulling oil cylinder 4; (4) The belt shaft redirection gear 52 is arranged and is a belt single shaft head redirection gear 52 matched with the belt rod lifting rack 51; (5) The lower loose core rack 53 is arranged and is matched with the belt rod lifting rack 51; (6) The gear mounting box 54 is a double-bearing box type gear mounting box 54, and the center distance of the double-bearing box is equal to the center distance of the double-belt-shaft redirection gear 52; (7) assembling the lower core-pulling device: (7.1) installation of the gear device: the gear mounting box 54 is mounted at the back of the middle part of the frame of the door frame type double-slideway 2, and the double-belt-shaft direction-changing gear 52 is mounted on the gear mounting box 54 to form a gear device; (7.2) assembling the left lower core-pulling device: the lower core-pulling trapezoidal insert 9 is arranged at the lower end of the lower core-pulling rack 53 to form a lower core-pulling rack with an insert; the lifting rack 51 with the rod is hung behind the left end of the lifting beam 3, and the lifting rack 51 with the rod, the bend gear 52 with the shaft and the lower core-pulling rack with the insert are meshed to form a lower left core-pulling device; the left insert at the concave bottom of the handle seat can be drawn out downwards; (7.3) assembling the lower right core-pulling device: the lower core-pulling trapezoidal insert 9 is arranged at the lower end of the lower core-pulling rack 53, and the lower core-pulling cylindrical core 15 is arranged on the ladder of the lower core-pulling trapezoidal insert 9 to form the lower core-pulling rack 53 with the insert and the core; the lifting rack 51 with the rod is hung behind the right end of the lifting beam 3, and the lifting rack 51 with the rod, the bend gear 52 with the shaft and the lower core-pulling rack 53 with the insert and the core are meshed to form a right lower core-pulling device; the right insert of the concave bottom of the handle seat and the handle seat blind hole mold core 15 can be drawn out downwards; and the mold core and the mold insert are used for drawing out the filter plate handle injection molding part downwards and have obstacles in the vertical and upward direction.

Assembling a single-drive upper and lower core-pulling demoulding mechanism: the gear mounting box 54 is mounted at the back of the middle part of the frame of the door frame type double-slideway 2, the upper core-pulling device and the lower core-pulling device are respectively mounted at corresponding positions of a lifting beam 3 of the core-pulling driving device, and a rising rack 51 with a rod, a bend gear 52 with a shaft and a lower core-pulling rack with an insert or a lower core-pulling rack 53 with an insert and a core are meshed to form a single-drive upper and lower core-pulling demoulding mechanism; the filter plate handle injection molding part has the function of simultaneously drawing out all the mold cores and the mold inserts in the vertical direction of the filter plate handle injection molding part upwards and downwards respectively.

The utility model provides a single oil cylinder driving type up-down core-pulling demoulding mechanism of a vertical injection mould of a filter plate handle, which has the advantages of single oil cylinder driving, simple and compact structure, direction change of a rack gear set, simultaneous core pulling from top to bottom, reliable performance, smaller volume, smaller matched injection moulding equipment, energy saving, convenient installation and lower comprehensive cost; the technical problems that the double-hydraulic-cylinder push-pull core-pulling demoulding mechanism is complex in structure and high in production cost, the mould is large in size, the space of injection moulding equipment is large, the double-hydraulic-cylinder push-pull opposite movement and high-low pressure oil ways are opposite and easy to connect in a wrong way, and accident potential exists are solved; the change-over transmission of the rack and pinion set replaces the original lower core-pulling oil cylinder, so that the energy is saved, and the manufacturing and using cost is reduced; saving the trouble, reducing the cost and improving the effect.

Example 2

A vertical filter plate handle injection mold (short for: filter plate handle injection mold), namely the vertical filter plate handle injection mold of automatic core-pulling demoulding, uses the single oil cylinder driving type up-down core-pulling demoulding mechanism (short for: single driving up-down core-pulling demoulding mechanism) of the vertical filter plate handle injection mold of the utility model; the injection mold for the handle of the filter plate mainly comprises a fixed mold 7 (namely, a left half mold of the handle) and a mold core thereof, a pouring system, a movable mold 14 (namely, a right half mold of the handle), an ejection device 1, a single-drive upper and lower core-pulling demolding mechanism and a built-in cooling system; the automatic core-installing and core-pulling device has the functions of injection molding of the filter plate handle, automatic up-down core-installing and core-pulling and automatic horizontal ejection of the filter plate handle.

The fixed mould 7, namely the left half mould with the mould core and the insert, is a module combined fixed mould 7, and comprises a fixed mould main body, a handle half model (a model which can be demoulded in the horizontal direction), the handle mould core and the insert, a pouring gate 8 and a fixed mould positioning groove; the handle mold core and the mold insert comprise an upper extraction ladder column core 11 (namely a handle mounting hole ladder mold core) for vertically extracting a core, an upper extraction cylindrical core 13 (namely a handle top hole mold core), a lower extraction ladder column core 9 (a handle base concave bottom mold insert) and a lower extraction cylindrical core 15 (namely a handle base hidden hole mold core); the handle mold core and the insert are arranged on a single-drive upper and lower core-pulling demolding mechanism; the device is used for forming most of discrete models of the filter plate handle and pouring molten polypropylene under the auxiliary core loading of the single-drive upper and lower core-pulling demoulding mechanism.

The moving die 14, namely the right half die without the die core and the insert, is an integral moving die 14 matched with the fixed die 7, and comprises a moving die main body, a handle half die (a die capable of being demoulded in the horizontal direction) and a moving die positioning block; the partial handle model is provided with a partial three-dimensional model corresponding to the injection molding filter plate handle; the movable mold 14 is installed at the movable end of the injection molding device on the right side of the fixed mold 7; for combining with the fixed mold 7 a complete three-dimensional model corresponding to the injection-molded filter plate handle.

The ejection device 1, namely the automatic ejection device 1 for the filter plate handle injection molding in the horizontal direction, comprises a mold stripping guide rod, an ejection rod, a return spring and an ejection device seat, and is positioned on the left side of a fixed mold 7; the automatic horizontal ejection device is used for automatically and horizontally ejecting an injection molding part (a filter plate handle) after vertical core pulling and mold opening.

The single-drive upper and lower core-pulling demoulding mechanism comprises a core-pulling driving device, an upper core-pulling device and a lower core-pulling device; the upper core-pulling device and the lower core-pulling device are respectively arranged at corresponding positions of a lifting beam 3 of the core-pulling driving device, a gear mounting box 54 is arranged behind the middle part of a frame of a door frame type double-slideway 2, and a rising rack 51 with a rod, a bend gear 52 with a shaft and a lower core-pulling rack with an insert or a lower core-pulling rack with an insert and a lower core-pulling rack 53 are meshed to form a single-drive upper and lower core-pulling demoulding mechanism; and all the mold cores and the mold inserts in the vertical direction of the filter plate handle injection molding part are respectively and simultaneously installed upwards and downwards before mold closing, and are respectively and simultaneously extracted upwards and downwards after injection molding.

Assembling of the filter plate handle injection mold: the ejection device 1 and the single-drive upper and lower core-pulling demoulding mechanism are successively arranged at the fixed end of the injection molding equipment, and the fixed mould 7 is arranged on the ejection device 1 and positioned in the lower part of the single-drive upper and lower core-pulling demoulding mechanism; the movable mold 14 is arranged at the movable end of the injection molding equipment corresponding to the fixed mold 7 to form a filter plate handle injection mold; an oil cylinder piston rod 41 of the single-drive up-and-down core-pulling demoulding mechanism extends out to automatically mount a core, and the oil cylinder piston rod 41 contracts to automatically pull a core; the automatic core-installing and core-pulling device has the functions of injection molding of the filter plate handle, automatic up-down core-installing and core-pulling and automatic horizontal ejection of the filter plate handle.

The working process of the injection mold for the filter plate handle comprises the following steps: with the support of the injection molding equipment; (1) core loading: a piston rod 41 of an oil cylinder of the single-drive upper and lower core-pulling demoulding mechanism extends out, and all mold cores and mold inserts in the vertical direction of the filter plate handle injection molding part are respectively installed upwards and downwards simultaneously (or simultaneously with mold closing); (2) die assembly: the moving end of the injection molding equipment pushes the moving die 14 forwards to be matched with the fixed die 7; (3) injection molding: injecting molten polypropylene from a pouring gate 8 under pressure to fill a mold cavity; and (4) cooling: while maintaining the pressure of the cavity, a built-in cooling system cools the model, the mold core and the mold insert; (5) core pulling: an oil cylinder piston rod 41 of the single-drive upper and lower core-pulling demoulding mechanism contracts, and all the mold cores and the mold inserts in the vertical direction of the filter plate handle injection molding part are respectively drawn out upwards and downwards simultaneously; (6) opening the mould: the moving end of the injection molding apparatus pulls the moving mold 14 back: (7) demolding: after vertically pulling core and opening the mold, the ejection device 1 automatically and horizontally ejects the injection molding piece (filter plate handle) from the fixed mold 7.

The filter plate handle, namely the sliding support handle of the filter press filter plate, has symmetrical double-sided structure, and the injection mold of the corresponding filter plate handle of the utility model is used for injection molding, and core pulling is needed to be performed in the vertical direction in opposite directions; (1) In the vertical direction, a handle mounting hole 71 (namely a handle mounting counter bore), a handle top hole, a hidden hole of a handle seat 73 and a handle seat concave bottom are arranged; wherein, the mold cores of the handle mounting hole 71 and the handle top hole are drawn out upwards without obstacles; the blind hole mold core of the handle seat 73 and the handle seat concave bottom insert are obstructed to be drawn out upwards and can only be drawn downwards; (2) In the horizontal direction, there are cavities of the handle body 72, handle seat slots, etc., and the model is demoulded by means of a horizontal liftout device; the filter plate handle is free from processing and has two functions of supporting the filter plate and moving the filter plate.

This vertical filter plate handle injection moulding mould uses the utility model discloses vertical injection moulding mould of filter plate handle's single cylinder drive formula demoulding mechanism of loosing core from top to bottom's beneficial effect is: the double-hydraulic-cylinder push-pull core-pulling demoulding mechanism is improved into a Shan Yougang driving rack-gear set direction-changing transmission type up-down core-pulling demoulding mechanism, the single oil cylinder simplifies the whole structure and reduces the equipment volume, the rack-gear set direction-changing transmission replaces the original down-pulling oil cylinder, the energy is saved, the manufacturing and using cost is reduced, and the hidden danger of product and equipment accidents is eliminated; saving the trouble, reducing the cost and improving the effect.

Claims (4)

1. A single oil cylinder driving type up-down core-pulling demoulding mechanism of a vertical injection mould of a filter plate handle comprises a core-pulling driving device, an upper core-pulling device and a lower core-pulling device; the method is characterized in that: the core-pulling driving device, namely a single-oil-cylinder driving type core-pulling driving device, comprises a door frame type double-slideway, a lifting beam, a core-pulling oil cylinder and a beam sliding block; the upper core pulling device comprises an upper core pulling rod, a die core seat, an upper pulling ladder column core and an upper pulling cylindrical core; the lower core-pulling device, namely the bend rack device, comprises a lower-pulling trapezoidal insert, a lower-pulling cylindrical core, a belt rod ascending rack, a belt shaft bend gear, a lower core-pulling rack and a gear mounting box; the interconnection relationship is: the double-beam sliding blocks are arranged at two ends of the lifting beam to form a lifting beam with the sliding blocks, the lifting beam with the sliding blocks is arranged in the door frame type double-slideway, the core-pulling oil cylinder is arranged on an oil cylinder seat of the door frame type double-slideway, and an oil cylinder piston rod is connected with the lifting beam to form a core-pulling driving device; the gear mounting box is mounted behind the middle of a frame of the door frame type double-slideway, the upper core-pulling device and the lower core-pulling device are respectively mounted at corresponding positions of a lifting cross beam of the core-pulling driving device, and a lifting rack with a rod, a direction-changing gear with a shaft and a lower core-pulling rack are meshed to form a single-drive upper and lower core-pulling demoulding mechanism; the mold core and the mold insert are respectively and simultaneously drawn out in the vertical direction of the filter plate handle injection molding part upwards and downwards.

2. The single-cylinder driving type up-and-down core-pulling demoulding mechanism of the vertical injection mould for the filter plate handle according to claim 1, is characterized in that: the core-pulling driving device is provided with a door frame type double-chute-shaped chute, the width of the door frame type double-chute-shaped chute corresponds to the width of the fixed die, an oil cylinder piston rod hole is arranged on the door frame type double-chute-shaped chute, sliding grooves are arranged in two side frames, and double mounting holes are arranged in the two side frames; the lifting beam is rectangular, the length of the lifting beam corresponds to the width of the door frame type double-sliding-channel, an oil cylinder seat with a piston rod hole is arranged in the middle of the lifting beam, and four upper core-pulling rod square holes and two round rod holes with rod lifting racks are arranged at positions corresponding to the fixed mold core; the core-pulling hydraulic cylinder is provided with a cylinder piston rod, and the stroke of the piston rod is greater than the longest mold core length; the arranged beam sliding block is a wear-resistant beam sliding block matched with the door frame type double-sliding-channel sliding chute; the core-pulling driving device has the function of driving the upper core-pulling device and the lower core-pulling device to lift.

3. The single-cylinder driving type up-and-down core-pulling demoulding mechanism of the vertical injection mould for the filter plate handle according to claim 1, is characterized in that: the upper core pulling device is provided with an upper core pulling rod which is a square upper core pulling rod with a raised head, and comprises an upper core pulling long rod and an upper core pulling short rod, and the length of the upper core pulling long rod corresponds to the height of the lifting cross beam from the mold core; the die core seat is a slope-shaped stepped die core seat and comprises a square die core seat and a long die core seat, the specification of the square die core seat is larger than that of a die core, and the length of the long die core seat corresponds to the thickness of the handle; the upper pulling ladder column core is arranged, namely a ladder column mold core of the handle mounting hole; the upper drawing cylindrical core is arranged, namely the upper drawing cylindrical mold core of the handle top hole; the square mould core seat is arranged at the lower end of the upper core-pulling long rod, the upper ladder-pulling column core is arranged below the square mould core seat to form an upper ladder-pulling column core long rod I, the double upper ladder-pulling column core long rods I are hung on the front sides of the two ends of the lifting beam, and the stepped cylindrical mould cores of the double-handle mounting holes can be pulled out upwards; the long mold core seat is installed at the lower end of the upper loose core long rod, the upper loose ladder column core is installed below the square long mold core seat to form an upper loose ladder column core long rod II, and the upper loose ladder column core long rod II is hung behind the middle of the lifting cross beam and can be pulled out upwards to form a ladder cylindrical mold core of the middle installation hole of the handle; the square die core seat is arranged at the lower end of the upper core-pulling short rod, and the upper cylindrical core is arranged below the square die core seat to form an upper cylindrical core-pulling short rod; the short rod of the upper drawing cylinder core is hoisted in the front side of the middle of the lifting beam, and the handle top hole mold core can be drawn out upwards.

4. The single-cylinder driving type up-and-down core-pulling demoulding mechanism of the vertical injection mould for the filter plate handle according to claim 1, is characterized in that: the lower core-pulling device is provided with a lower core-pulling trapezoidal insert, namely a handle seat concave bottom insert, which is a stepped lower core-pulling trapezoidal insert; the arranged lower drawing cylindrical core is the handle seat blind hole mold core; the upper end of a round rod of the arranged lifting rack with the rod is provided with a convex ring, and the length of the rack corresponds to the stroke of the core-pulling oil cylinder; the belt shaft direction-changing gear is a belt single-shaft head direction-changing gear matched with the belt rod lifting rack; the lower core-pulling rack is matched with the lifting rack with the rod; the gear mounting box is a double-bearing box type gear mounting box, and the center distance of the double-bearing box is equal to that of the double-belt-shaft direction-changing gear; the double-belt-shaft bend gear is arranged on the gear mounting box to form a gear device; the lower core-pulling trapezoidal insert is arranged at the lower end of the lower core-pulling rack to form a lower core-pulling rack with the insert; the lifting rack with the rod is hoisted behind the left end of the lifting beam, and the lifting rack with the rod, the bend gear with the shaft and the lower core-pulling rack with the insert are meshed to form a left lower core-pulling device; the left insert at the concave bottom of the handle seat can be drawn out downwards; the lower pulling cylindrical core is arranged on the step of the lower pulling trapezoidal insert to form a rack with the insert and a core lower pulling core; the lifting rack with the rod is hoisted behind the right end of the lifting beam, and the lifting rack with the rod, the bend gear with the shaft, the belt insert and the core lower core-pulling rack are meshed to form a right lower core-pulling device; the right insert of the concave bottom of the handle seat and the handle seat blind hole mold core can be drawn out downwards.

Images