CN115179508A - Shifting fork rocker arm type gravity-assisted core pulling mechanism without oil cylinder and filter plate handle injection mold - Google Patents
Shifting fork rocker arm type gravity-assisted core pulling mechanism without oil cylinder and filter plate handle injection mold Download PDFInfo
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- CN115179508A CN115179508A CN202210859875.1A CN202210859875A CN115179508A CN 115179508 A CN115179508 A CN 115179508A CN 202210859875 A CN202210859875 A CN 202210859875A CN 115179508 A CN115179508 A CN 115179508A
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- 238000002347 injection Methods 0.000 title claims abstract description 32
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- 230000005540 biological transmission Effects 0.000 claims abstract description 67
- 238000001746 injection moulding Methods 0.000 claims abstract description 40
- 238000001816 cooling Methods 0.000 claims description 6
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
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Abstract
The invention omits a shifting fork rocker arm type gravity-assisted core-pulling mechanism of an oil cylinder and a filter plate handle injection mold, and the key points of the innovative scheme are as follows: the gravity-assisted core pulling mechanism is created, namely, the pulling fork is driven by the pulling force of the die sinking to drive the linkage rod to automatically pull the core, and mainly comprises a core pulling mechanism left part and a core pulling mechanism right part which are symmetrical in structure and comprise a transmission pulling fork, a shaft with a rocker arm, a linkage rod, a die core seat, an upper pulling die core and a pulling fork pushing handle, so that a driving oil cylinder special for pulling the core is omitted; the core pulling mechanism left and right parts are respectively arranged at the left and right corresponding positions of the movable die, and the shifting fork push handle is arranged at the position of the fixed die corresponding to the transmission shifting fork; when the mold is closed, the shifting fork push handle pushes the transmission shifting fork to rotate forward 90 ︒ for core loading, and when the mold is opened, the shifting fork push handle pulls the transmission shifting fork to rotate backward 90 ︒ for core pulling. The injection mold of the filter plate handle uses the mechanism, so that the technical problems that the core pulling mechanism needs a special driving oil cylinder, has loose and complex structure and is not suitable for the injection molding and core pulling of the filter plate handle without a handle seat hidden hole are solved; omitting elements, reducing cost and improving efficiency.
Description
Technical Field
The invention belongs to the technical field of filter presses and injection molds, and relates to a force-assisted automatic core pulling mechanism of a filter plate handle injection molding mold, which is free of a special driving device.
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; the injection molding mould of the handle of the filter plate, it is a vertical automatic knockout core demolding injection mold to produce and exempt from to process the handle of the filter plate, mainly there are fixed mould (namely the left mould of handle) and its mold core, gating system, moving die (namely the right mould of handle), automatic core-pulling organization, knockout demolding apparatus, built-in cooling system make up; the integral filter plate is arranged in an injection molding device and has the functions of injection molding of a filter plate handle and automatic core pulling and demolding.
The automatic core pulling mechanism, namely the single oil cylinder driving type up-down core pulling mechanism, mainly comprises a core pulling driving device, an up core pulling device and a down core pulling device; the core-pulling driving device is a single-oil-cylinder core-pulling driving device; 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 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 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 of the injection molding piece of the filter plate handle in the vertical direction is realized; for example, the single cylinder driven up-down core-pulling and demoulding mechanism of a vertical injection mould for a filter plate handle (patent application No. 202221218227. X) is mainly used for automatically drawing out a mould core with double mounting holes in the vertical direction of the filter plate handle so as to automatically eject the injection-molded filter plate handle in the horizontal direction (i.e. demoulding of an injection molding part).
The existing single oil cylinder driving type up-down core pulling mechanism has the following defects: a special driving oil cylinder is needed, the structure is loose and complex, the occupied space is large, and the special driving oil cylinder is not suitable for being used in narrow injection molding equipment; the upper core pulling and the lower core pulling move oppositely, and parts in different directions are easy to be damaged due to installation errors, so that two unnecessary blind holes (only two necessary double installation holes are formed in the vertical direction of the filter plate handle) below a handle seat are eliminated from the filter plate handle, and the existing single-oil-cylinder driving type upper and lower core pulling mechanism is not suitable for the requirement of injection molding and core pulling of the improved filter plate handle.
Disclosure of Invention
The invention aims to overcome the defects of the existing single oil cylinder driving type up-and-down core pulling mechanism, solve the technical problems that the core pulling mechanism needs a special driving oil cylinder, has loose and complex structure and large occupied space, and is not suitable for the injection molding and core pulling of the improved filter plate handle without a handle seat hidden hole, and provide a shifting fork rocker arm type gravity-assisted core pulling mechanism and a filter plate handle injection mold which omit the oil cylinder; the invention relates to an injection mold for a handle of a filter plate, in particular to an injection mold for a handle of a filter plate, which is provided with a shifting fork rocker arm type gravity-assisted core pulling mechanism without an oil cylinder, and is called as short for the reason that the number of characters of the patent name is limited.
The invention adopts a brand-new technical scheme for solving the problems of the prior art, which comprises the following steps: a shifting fork rocker arm type gravity core pulling mechanism (hereinafter referred to as a shifting fork type gravity core pulling mechanism) without an oil cylinder has the key points of the general technical scheme that: compared with the prior art, the innovative overall structure has the prominent substantive characteristics that: the core pulling mechanism is mainly composed of a left core pulling mechanism component and a right core pulling mechanism component, and the left core pulling mechanism component and the right core pulling mechanism component are symmetrical in structure; because the installation space is limited, the installation heights of the left part and the right part of the core pulling mechanism are different, so the right mold core is longer than the left mold core; the core pulling mechanism left component or the core pulling mechanism right component comprises a transmission shifting fork, a component with a rocker shaft (namely a linkage shaft component with a rocker), a linkage rod, a mold core seat, an upper pulling mold core (namely an upper pulling type handle mounting hole stepped column mold core) and a shifting fork push handle; the transmission shifting fork is arranged at the outer end of the shaft with the rocker arm, the two ends of the linkage rod are respectively movably connected with the rocker arm and the die core seat, the upper drawing die core is embedded on the die core seat to form a left component or a right component of the shifting fork type gravity-assisted core drawing mechanism, and the transmission shifting fork rotates to drive the upper drawing die core to vertically move; the core pulling mechanism left component and the core pulling mechanism right component are respectively arranged at the left and right corresponding positions of the movable die, and the shifting fork push handle is arranged at the corresponding position of the fixed die and the transmission shifting fork; when the mold is closed, the shifting fork push handle pushes the transmission shifting fork to rotate forward 90 ︒ for core loading, and when the mold is opened, the shifting fork push handle pulls the transmission shifting fork to rotate backward 90 ︒ for core pulling; a driving oil cylinder special for core pulling is omitted, so that the main functions of the original core pulling mechanism are still kept; therefore, the technical problems that a core pulling mechanism needs a special driving oil cylinder, is loose and complex in structure, occupies a large space and is not suitable for the injection molding core pulling requirement of the improved filter plate handle without the handle seat hidden hole are solved.
The specific design scheme of the invention is as follows: (1) The transmission shifting fork is generally a right-angle transmission shifting fork, an included angle opening of 60 ︒ is arranged at the included angle of the double shifting fork rods, the root part of the included angle opening is in arc transition, and the radius of the root part of the arc is larger than that of a push-pull round rod of the shifting fork push handle; the right angle of the transmission shifting fork is provided with a concentric shaft hole; (2) The shaft assembly with the rocker arm, namely the linkage shaft assembly with the rocker arm comprises a concentric shaft, a concentric shaft box and a linkage rocker arm; the concentric shaft is arranged in the concentric shaft box, and the linkage rocker arm is arranged at the end of the concentric shaft to form a shaft assembly with the rocker arm; (3) The linkage rod is a batten type semi-circle head linkage rod, and connecting holes are formed in the two ends of the linkage rod; (4) The die core seat is a slope-shaped die core seat and is provided with an upper drawing die core embedding hole; (5) The upper drawing mold core, namely the upper drawing handle mounting hole stepped column mold core, comprises a left mold core and a right mold core; because the installation space is limited, the installation heights of the left and right parts of the shifting fork type gravity-assisted core pulling mechanism are different, so that the right mold core is longer than the left mold core; the upper drawing die core belongs to a die part, and is additionally provided with the upper drawing die core for convenience of description; (6) The shifting fork push-pull handle comprises a push-pull arm and a push-pull round rod; the push-pull arm is L-shaped and has a larger root; the push-pull round rod is vertically arranged at the small end of the push-pull arm to form a shifting fork push-pull handle.
The connection relation of the main parts of the invention is as follows: for convenience of description, a moving die and a fixed die which are closely related to the pulling fork type gravity core pulling mechanism are additionally arranged; (1) assembling a pulling fork type gravity core pulling mechanism: the transmission shifting fork is arranged at the outer end of the shaft with the rocker arm, the two ends of the linkage rod are respectively movably connected with the rocker arm and the die core seat, the upper die core is embedded on the die core seat to form a left part or a right part of the die core pulling mechanism, and the transmission shifting fork rotates to drive the upper die core to vertically move; (2) assembling the shifting fork type gravity core pulling mechanism: a concentric shaft box of a left component of the core-pulling mechanism is arranged at the middle upper part of the left side of the movable die, and the transmission shifting fork is positioned outside the left side of the movable die; the right part of the core pulling mechanism is arranged at the upper part of the right side of the movable die, and the transmission shifting fork is positioned outside the right side of the movable die; the double shifting fork push-pull hands are respectively embedded at the positions of the two sides of the fixed die corresponding to the transmission shifting forks, and the push-pull round rods of the shifting fork push-pull hands correspond to 60 ︒ included angle openings of the transmission shifting forks to form a shifting fork type gravity-assisted core pulling mechanism; a driving oil cylinder special for core pulling is omitted, so that the main functions of the original core pulling mechanism are still kept; (3) dynamic relationship of the pulling fork type gravity-assisted core-pulling mechanism: (3.1) when the injection mold is closed, the left part of the core-pulling mechanism and the right part of the core-pulling mechanism move forwards along with the moving mold, and a shifting fork push-pull hand enters an opening with an included angle of 60 ︒ of the transmission shifting fork to push the transmission shifting fork to rotate forwards for 90 ︒ core loading; (3.2) when the injection mold is opened, the left part of the core-pulling mechanism and the right part of the core-pulling mechanism move backwards along with the moving mold, and the shifting fork push-pull hand enters an included angle opening of 60 ︒ of the transmission shifting fork to pull the transmission shifting fork to reversely rotate 90 ︒ for core pulling; the mold core with double mounting holes in the vertical direction of the filter plate handle is automatically drawn out so as to automatically eject the injection molded filter plate handle in the horizontal direction (i.e. injection molding demoulding).
The invention also provides a filter plate handle injection mold, namely an automatic core-pulling demolding vertical filter plate handle injection molding mold, and the shifting fork rocker arm type gravity-assisted core-pulling mechanism provided by the invention without an oil cylinder is used; the injection mold for the handle of the filter plate mainly comprises a fixed mold and a mold core thereof, a pouring system, a movable mold, a shifting fork type gravity-assisted core pulling mechanism, an ejection device and an internal cooling system; has the functions of injection molding, processing-free filter plate handle and automatic core-pulling and demoulding.
The shifting fork rocker arm type gravity-assisted core pulling mechanism and the filter plate handle injection mold which omit the oil cylinder have the advantages of simple and compact structure, small occupied space, driving oil cylinder omission, shifting fork rocker arm transmission, gravity-assisted automatic core pulling, reliable performance and convenience in installation, and have the beneficial effects that the shifting fork type gravity-assisted core pulling mechanism is created, namely, the shifting fork is driven by the pulling force of mold opening to drive the linkage rod to automatically pull the core, and the special driving oil cylinder for pulling the core is omitted, so that the main functions of the original core pulling mechanism are still kept; the requirement of injection molding and core pulling of the handle of the blind hole type filter plate without the handle seat is met; omitting elements, reducing cost and improving efficiency.
Drawings
Fig. 1 is a perspective view of the pulling fork type gravity core pulling mechanism (except for the pulling fork pushing handle) of the invention.
Fig. 2 is a schematic perspective view of a half core pulling mechanism mold closing and core assembling initial state (i.e. the initial state of the fork pulling and pushing hand driving the fork, and an arrow indicates the movement direction of the fork pulling and pushing hand) of the fork pulling type gravity-assisted core pulling mechanism.
Fig. 3 is a schematic perspective view of a half core pulling mechanism in an open mold core pulling initial state (i.e., a fork pulling and pulling hand power transmission fork initial state, and an arrow indicates a movement direction of a fork pulling and pulling handle) of the fork pulling type gravity-assisted core pulling mechanism.
FIG. 4 is a schematic perspective view of the assembly of the pulling fork type gravity-assisted core pulling mechanism main body and the corresponding movable mold.
FIG. 5 is a perspective view of the fork pulling push handle and the corresponding fixed mold assembly of the fork pulling type gravity-assisted core pulling mechanism of the present invention.
Fig. 6 is a perspective view of the filter plate handle injection molded by the injection mold according to the invention.
Reference numerals: 1-transmission shifting fork, 2-shaft assembly with rocker arm, 3-linkage rod, 4-die core seat, 5-upper drawing die core, 6-moving die, 7-ejection device, 8-fixed die, 9-shifting fork push handle, 10-filter plate handle, 11-injection molding opening, 101-handle mounting hole, 102-handle main body and 103-handle mounting seat.
The core pulling mechanism left component or the core pulling mechanism right component comprises a 1-transmission shifting fork, a 2-shaft component with a rocker arm, a 3-linkage rod, a 4-mold core seat and a 5-upper mold core pulling.
The half core-pulling mechanism comprises a core-pulling mechanism left part or a core-pulling mechanism right part and a 9-shifting fork push handle.
Detailed Description
The technical solutions in the embodiments of the present invention are described below with reference to the drawings in the embodiments of the present invention, in which a fork-pulling rocker arm type gravity-assisted core-pulling mechanism of an oil cylinder and an injection mold for a filter plate handle are omitted. Based on the embodiments of the present invention, all other embodiments without inventive idea made by those skilled in the art, such as omitting the pulling fork type gravity core pulling mechanism with the same gravity core pulling manner and similar structure, belong to the protection scope of the present invention.
Example 1
A shifting fork rocker arm type gravity core pulling mechanism (for short: shifting fork type gravity core pulling mechanism) without an oil cylinder has the key points of the innovative general implementation scheme that: the core pulling mechanism is mainly composed of a left core pulling mechanism component and a right core pulling mechanism component, and the left core pulling mechanism component and the right core pulling mechanism component are symmetrical in structure; because the installation space is limited, the installation heights of the left part and the right part of the core pulling mechanism are different, so the right mold core is longer than the left mold core; the core pulling mechanism left component or the core pulling mechanism right component comprises a transmission shifting fork 1, a component 2 with a rocker shaft (namely a linkage shaft component with a rocker), a linkage rod 3, a mold core seat 4, an upper pulling mold core 5 (namely a stepped column mold core of an upper pulling type handle mounting hole) and a shifting fork push handle 9; the transmission shifting fork 1 is arranged at the outer end of the shaft component 2 with the rocker arm, the two ends of the linkage rod 3 are respectively movably connected with the rocker arm and the mold core seat 4, the upper mold core drawing die 5 is embedded on the mold core seat 4 to form a left component or a right component of the shifting fork type gravity-assisted core drawing mechanism, and the transmission shifting fork 1 rotates to drive the upper mold core drawing die 5 to vertically move; the core pulling mechanism left component and the core pulling mechanism right component are respectively arranged at the left and right corresponding positions of the movable die 6, and the shifting fork push handle 9 is arranged at the position of the fixed die 8 corresponding to the transmission shifting fork 1; when the mold is closed, the shifting fork push handle 9 pushes the transmission shifting fork 1 to rotate forward 90 ︒ for core loading, and when the mold is opened, the shifting fork push handle 9 pulls the transmission shifting fork 1 to rotate backward 90 ︒ for core pulling; a driving oil cylinder special for core pulling is omitted, so that the main functions of the original core pulling mechanism are still kept; specific embodiments are described in detail below.
The transmission shifting fork 1 is a right-angle transmission shifting fork 1 overall, an included angle opening of 60 ︒ is arranged at the included angle of the double shifting fork rods, the root part of the included angle opening is in arc transition, and the radius of the root part of the arc is larger than that of a push-pull round rod of the shifting fork push handle 9; the right angle of the transmission shifting fork 1 is provided with a concentric shaft hole. The transmission shifting fork 1 is arranged at the outer end of the shaft component 2 with the rocker arm and is mainly used for driving the pulling force (borrow force) of a transmission shifting fork push handle 9 to drive the linkage rod 3 to automatically loose core when the mold is opened.
The shaft assembly 2 with the rocker arm, namely the linkage shaft assembly with the rocker arm, comprises a concentric shaft, a concentric shaft box and a linkage rocker arm; the concentric shaft is arranged in the concentric shaft box, and the linkage rocker arm is arranged at the end of the concentric shaft to form the shaft component 2 with the rocker arm. The transmission shifting fork 1 is arranged at the outer end of the shaft with the rocker arm, and the two ends of the linkage rod 3 are respectively movably connected with the rocker arm and the mold core seat 4 and used for converting the rotary motion of the transmission shifting fork 1 into the vertical linear motion of the linkage rod 3.
The linkage rod 3 is a batten type semi-circle head linkage rod 3, and connecting holes are formed in two ends of the linkage rod. Two ends of the linkage rod 3 are respectively movably connected with a rocker arm and a mold core seat 4, and the rocker arm and the mold core seat are used for converting the rotary motion of the rocker arm into the vertical linear motion of the linkage rod 3 and driving the mold core seat 4 to do the vertical linear motion.
The mold core seat 4 is a slope mold core seat 4 and is provided with an embedding hole for drawing the mold core 5 upwards. The two ends of the linkage rod 3 are respectively movably connected with the rocker arm and the mold core seat 4, and the upper core-pulling mold core 5 is embedded on the mold core seat 4 and used for embedding the upper core-pulling mold core 5 and driving the upper core-pulling mold core 5 to do vertical linear motion so as to realize core installation and core pulling.
The upper drawing mold core 5, namely an upper drawing handle mounting hole stepped column mold core, comprises a left mold core and a right mold core; because the installation space limits, the installation height of the left part and the right part of the shifting fork type gravity-assisted core pulling mechanism is different, so that the right mold core is longer than the left mold core. The upper core-pulling 5 is embedded on the core seat 4 and used for forming the handle mounting hole 101 and can automatically pull the core by means of a shifting fork type gravity-assisted core-pulling mechanism.
The shifting fork push-pull handle 9 comprises a push-pull arm and a push-pull round rod; the push-pull arm is L-shaped and has a larger root; the push-pull round rod is vertically arranged at the small end of the push-pull arm to form a shifting fork push-pull handle 9. The driving shifting fork 1 is driven by the push-pull force of the opening and closing die.
The general assembly of the pulling fork type gravity core pulling mechanism: a concentric shaft box of a left component of the core-pulling mechanism is arranged at the middle upper part of the left side of the movable die 6, and a transmission shifting fork 1 of the concentric shaft box is positioned outside the left side of the movable die 6; the right part of the core-pulling mechanism is arranged at the upper part of the right side of the movable die 6, and the transmission shifting fork 1 of the core-pulling mechanism is positioned outside the right left side of the movable die 6; the double-shifting fork push pull handles 9 are respectively embedded at the positions corresponding to the transmission shifting fork 1 on the two sides of the fixed mould 8, and the push-pull round rods of the shifting fork push pull handles 9 correspond to the openings of the included angles of 60 ︒ of the transmission shifting fork 1 to form a shifting fork type gravity-assisted core pulling mechanism; the special driving oil cylinder for core pulling is omitted, so that the main functions of the original core pulling mechanism are still kept.
The shifting fork rocker arm type gravity-assisted core pulling mechanism without the oil cylinder has the advantages of simple and compact structure, small occupied space, no need of driving the oil cylinder, shifting fork rocker arm transmission, gravity-assisted automatic core pulling, reliable performance and convenience in installation; the shifting fork can be driven by means of the pulling force of the die sinking to drive the linkage rod 3 to automatically loose the core, so that the technical problems that a special driving oil cylinder is needed in the core pulling mechanism, the structure is loose and complex, the occupied space is large, and the core pulling mechanism is not suitable for the requirement of injection molding and core pulling of the improved filter plate handle 10 without a handle seat hidden hole are solved; omitting elements, reducing cost and improving efficiency.
Example 2
A filter plate handle injection mould, namely the vertical filter plate handle injection moulding mould of automatic knockout core demoulding, use the shifting fork rocker arm type that the invention provides to omit the oil cylinder to borrow the core-pulling mechanism (abbreviate the fork type to borrow the core-pulling mechanism); the injection mold for the handles of the filter plates mainly comprises a fixed mold 8 (namely a right handle mold) and a mold core thereof, a pouring system, a movable mold 6 (namely a left handle mold), a shifting fork type gravity-assisted core pulling mechanism, an ejection device 7 and a built-in cooling system; has the functions of injection molding, processing-free filter plate handle and automatic core-pulling and demoulding.
The moving die 6, namely the left half die with the die core and the mold insert, is a module combined moving die 6 and comprises a moving die body, a handle half die (a die capable of demoulding in the horizontal direction), a handle die core and a mold insert and a moving die positioning groove; the handle mold core and the insert comprise an upper drawing mold core 5 (namely an upper drawing type handle mounting hole stepped column mold core) for drawing a core in the vertical direction; the upper core-pulling 5 is arranged on the pulling fork type gravity-assisted core-pulling mechanism; the movable die 6 is arranged at the movable end of the injection molding equipment at the left side of the fixed die 8 and is used for forming most of three-dimensional models of the filter plate handle 10 under the auxiliary core loading of the pulling fork type gravity core pulling mechanism.
The fixed mould 8, namely the right half mould without mould core and insert, is an integral fixed mould 8 matched with the moving mould 6, and comprises a fixed mould main body, a half handle mould (a mould which can be demoulded in the horizontal direction) and a moving mould positioning block; the half-handle model has a partial three-dimensional model of the filter plate handle 10 formed by injection molding; the fixed die 8 is arranged at the fixed end of the injection molding equipment on the right side of the movable die 6; for synthesizing a three-dimensional model identical to the filter pad handle 10 with the moving mold 6 and pouring molten polypropylene.
The ejection device 7, namely the device for automatically ejecting the injection molding of the filter plate handle 10 out of the mold in the horizontal direction, comprises a mold ejection guide rod, an ejection rod, a return spring and an ejection device seat and is positioned on the left side of the movable mold 6; the automatic horizontal ejection die is used for automatically and horizontally ejecting an injection molding part after vertical core pulling and die opening so as to demould the injection molding filter plate handle 10.
The pulling fork type gravity-assisted core pulling mechanism mainly comprises a left core pulling mechanism component and a right core pulling mechanism component, and the two components are symmetrical in structure; the core pulling mechanism left component or the core pulling mechanism right component comprises a transmission shifting fork 1, a component 2 with a rocker shaft, a linkage rod 3, a mold core seat 4, an upper mold pulling core 5 and a shifting fork push handle 9. The transmission shifting fork 1 is arranged at the outer end of the shaft assembly 2 with the rocker arm, the two ends of the linkage rod 3 are respectively movably connected with the rocker arm and the mold core seat 4, the upper core-pulling mold core 5 is embedded on the mold core seat 4 to form a left part of the core-pulling mechanism or a right part of the core-pulling mechanism, and the transmission shifting fork 1 rotates to drive the upper core-pulling mold core 5 to vertically move.
The assembly of the injection mold for the handle of the filter plate comprises the following steps: the ejection device 7 is arranged at the moving end of the injection molding equipment, and the moving die 6 is arranged on the ejection device 7; the fixed die 8 is arranged at the fixed end of the injection molding equipment corresponding to the movable die 6 to form a filter plate handle injection mold main body; a concentric shaft box of a left component of the core-pulling mechanism is arranged at the middle upper part of the left side of the movable die 6, and a transmission shifting fork 1 of the concentric shaft box is positioned outside the left side of the movable die 6; the right part of the core-pulling mechanism is arranged at the upper part of the right side of the movable die 6, and the transmission shifting fork 1 is positioned outside the right side of the movable die 6; the double-shifting fork push pull handles 9 are respectively embedded at the positions corresponding to the transmission shifting fork 1 on the two sides of the fixed mould 8, and the push-pull round rods of the shifting fork push pull handles 9 correspond to the openings of the included angles of 60 ︒ of the transmission shifting fork 1 to form a shifting fork type gravity-assisted core pulling mechanism; the special driving oil cylinder for core pulling is omitted, so that the main functions of the original core pulling mechanism are still kept.
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) die assembly and core assembly: the moving end of the injection molding equipment pushes the moving die 6 and the fixed die 8 forward to be matched; meanwhile, the left part of the core-pulling mechanism and the right part of the core-pulling mechanism move forward along with the moving die 6, and the shifting fork push handle 9 enters an included angle opening of 60 ︒ of the transmission shifting fork 1 to push the transmission shifting fork 1 to rotate forward 90 ︒ for core loading; (2) injection molding: injecting molten polypropylene from an injection port 11 under pressure to fill a mold cavity; (3) cooling: while maintaining the pressure of the cavity, a built-in cooling system cools the model, the mold core and the mold insert; (4) opening the mold and loosing core: the moving end of the injection molding equipment pulls the moving mold 6 back: meanwhile, the left part of the core-pulling mechanism and the right part of the core-pulling mechanism move backwards along with the moving die 6, the shifting fork push handle 9 enters an included angle opening of 60 ︒ of the transmission shifting fork 1 to pull the transmission shifting fork 1 to reversely rotate 90 ︒ for core pulling, namely, the upper die-pulling core 5 of the double-handle mounting hole 101 is automatically pulled upwards; and (5) demolding: after the mold is opened and the core is pulled, the ejection device 7 automatically horizontally ejects the injection-molded filter plate handle 10 (injection molding) from the movable mold 6.
The filter plate handle 10, namely the filter plate sliding support handle without the hidden hole of the handle seat of the filter press, has symmetrical double-sided structure, is injection molded by using the corresponding injection mold of the filter plate handle, and needs to upwards loose core in the vertical direction; (1) The filter plate handle 10 is provided with a handle mounting hole 101 (namely a handle mounting counter bore) in the vertical direction, the upper core-pulling 5 of the handle mounting hole 101 is pulled out upwards without obstacles, and the core is pulled by a pulling fork type gravity-assisted core-pulling mechanism; (2) The filter plate handle 10 is horizontally provided with a hollow of the handle body 102, a long hole of the handle mounting seat 103, and the like, and the model thereof is demoulded by the horizontal ejection device 7; the filter plate handle 10 is free from processing and has two functions of supporting the filter plate and moving the filter plate.
The invention provides an injection mold for a filter plate handle, which has the beneficial effects that: by creating a shifting fork type gravity-assisted core-pulling mechanism, namely driving the shifting fork to drive the linkage rod 3 to automatically pull the core by means of the pulling force of the die sinking, a special core-pulling driving oil cylinder is omitted, so that the core-pulling mechanism still maintains the main functions of the original core-pulling mechanism; the requirements of injection molding and core pulling of the blind hole type filter plate handle 10 without the handle seat are met; omitting elements, reducing cost and improving efficiency.
Claims (2)
1. A shifting fork rocker arm type gravity-assisted core pulling mechanism without an oil cylinder mainly comprises a core pulling mechanism left component and a core pulling mechanism right component
The two structures are symmetrical; the core pulling mechanism left component or the core pulling mechanism right component comprises a transmission shifting fork, a shaft assembly with a rocker arm, a linkage rod, a mold core seat, an upper pulling mold core and a shifting fork push handle; the method is characterized in that: the transmission shifting fork is generally a right-angle transmission shifting fork, an included angle opening of 60 ︒ is arranged at the included angle of the double shifting fork rods, the root part of the included angle opening is in arc transition, the radius of the root part of the arc is larger than that of a push-pull round rod of the shifting fork push handle, and the right angle of the transmission shifting fork is provided with a concentric shaft hole; the shaft assembly with the rocker arm, namely the linkage shaft assembly with the rocker arm, comprises a concentric shaft, a concentric shaft box and a linkage rocker arm, wherein the concentric shaft is arranged in the concentric shaft box, and the linkage rocker arm is arranged at the concentric shaft end to form the shaft assembly with the rocker arm; the linkage rod is a batten type semi-circle head linkage rod, and connecting holes are formed in the two ends of the linkage rod; the mold core seat is a slope mold core seat and is provided with an upper drawing mold core embedding hole; the upper drawing mold core, namely the upper drawing handle mounting hole stepped column mold core, comprises a left mold core and a right mold core; the right mold core is longer than the left mold core; the shifting fork push-pull handle comprises a push-pull arm and a push-pull round rod; the push-pull arm is L-shaped and has a larger root; the push-pull round rod is vertically arranged at the small end of the push-pull arm to form a shifting fork push-pull handle; the interconnection relationship is: the transmission shifting fork is arranged at the outer end of the shaft with the rocker arm, the two ends of the linkage rod are respectively movably connected with the rocker arm and the die core seat, the upper die core is embedded on the die core seat to form a left part or a right part of the die core pulling mechanism, and the transmission shifting fork rotates to drive the upper die core to vertically move; a concentric shaft box of a left component of the core-pulling mechanism is arranged at the middle upper part of the left side of the movable die, and the transmission shifting fork is positioned outside the left side of the movable die; the right part of the core pulling mechanism is arranged at the upper part of the right side of the movable die, and the transmission shifting fork is positioned outside the right side of the movable die; the double shifting fork push-pull handles are respectively embedded at the positions of the two sides of the fixed die corresponding to the transmission shifting fork, and the push-pull round rods of the shifting fork push-pull handles correspond to 60 ︒ included angle openings of the transmission shifting fork, so that a shifting fork rocker arm type gravity assisted core pulling mechanism without an oil cylinder is formed; when the mold is closed, the shifting fork push handle can push the transmission shifting fork to rotate forward 90 ︒ for core loading, and when the mold is opened, the shifting fork push handle can pull the transmission shifting fork to rotate backward 90 ︒ for core pulling; the special driving oil cylinder for core pulling is omitted, so that the main functions of the original core pulling mechanism are still kept.
2. An injection mould for a filter plate handle, namely an injection mould for a vertical filter plate handle capable of automatically pulling and demoulding, comprises a fixed mould and a mould
The device comprises a mold core, a pouring system, a movable mold, a shifting fork type gravity-assisted core pulling mechanism, an ejection device and a built-in cooling system; the method is characterized in that: the shifting fork type gravity-assisted core pulling mechanism is the shifting fork rocker arm type gravity-assisted core pulling mechanism which omits an oil cylinder in claim 1; the ejection device is arranged at the moving end of the injection molding equipment, and the moving mold is arranged on the ejection device; the fixed die is arranged at the fixed end of the injection molding equipment corresponding to the movable die to form a filter plate handle injection mold main body; a core pulling mechanism left part and a core pulling mechanism right part of the shifting fork type gravity-assisted core pulling mechanism are respectively arranged on the left side and the right side of the movable die, and double shifting fork push-pull hands are respectively embedded at the positions, corresponding to the transmission shifting forks, on the two sides of the fixed die; has the functions of injection molding, processing-free filter plate handle and automatic core-pulling and demoulding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210859875.1A CN115179508B (en) | 2022-07-22 | 2022-07-22 | Vertical filter plate handle injection molding die capable of automatically pulling core and demolding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210859875.1A CN115179508B (en) | 2022-07-22 | 2022-07-22 | Vertical filter plate handle injection molding die capable of automatically pulling core and demolding |
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| CN115179508A true CN115179508A (en) | 2022-10-14 |
| CN115179508B CN115179508B (en) | 2023-12-26 |
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| CN115179508B (en) | 2023-12-26 |
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