CN115179508B - Vertical filter plate handle injection molding die capable of automatically pulling core and demolding - Google Patents
Vertical filter plate handle injection molding die capable of automatically pulling core and demolding Download PDFInfo
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- CN115179508B CN115179508B CN202210859875.1A CN202210859875A CN115179508B CN 115179508 B CN115179508 B CN 115179508B CN 202210859875 A CN202210859875 A CN 202210859875A CN 115179508 B CN115179508 B CN 115179508B
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 128
- 230000005540 biological transmission Effects 0.000 claims abstract description 67
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 30
- 239000007924 injection Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 12
- 230000033001 locomotion Effects 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012458 free base Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Classifications
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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
-
- 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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- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to an automatic core-pulling and demoulding vertical filter plate handle injection molding die which comprises a fixed die, a die core, a pouring system, a movable die, a fork-pulling type force-pulling core-pulling mechanism, an ejection device and a built-in cooling system, wherein the fixed die is connected with the pouring system; the key points of the innovation scheme are as follows: the force-assisted core pulling mechanism is mainly composed of left and right parts of the core pulling mechanism, and the two parts are symmetrical in structure and comprise a transmission shifting fork, a belt rocker shaft, a linkage rod, a die core seat, an upper drawing die core and a shifting fork pushing handle, so that a special driving oil cylinder for core pulling is omitted; the left and right parts of the core pulling mechanism are respectively arranged at the left and right corresponding positions of the movable mould, and the shifting fork push-pull hand is arranged at the position of the fixed mould corresponding to the transmission shifting fork; when the die is closed, the pulling fork push-pull hand drives the transmission pulling fork to positively rotate for 90 degrees for core assembly, and when the die is opened, the pulling fork push-pull hand drives the transmission pulling fork to positively rotate for 90 degrees for core pulling; the technical problems that a special driving oil cylinder is needed for a core pulling mechanism, the structure is loose and complex, and the injection molding core pulling requirement of a filter plate handle without a handle seat blind hole is not met are solved; the elements are omitted, the cost is reduced and the efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of filter presses and injection molds, and relates to a special-purpose-free driving device force-assisted automatic core pulling mechanism of an injection molding mold of a filter plate handle.
Background
Injection molding is a method for producing and modeling industrial products; the molding 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 mold for the filter plate handle is a vertical automatic core-pulling and demolding injection mold for producing a processing-free filter plate handle, and mainly comprises a fixed mold (namely a left handle mold), a mold core of the fixed mold, a pouring system, a movable mold (namely a right handle mold), an automatic core-pulling mechanism, an ejection and demolding device and a built-in cooling system; the whole filter plate is arranged in injection molding equipment, and has the functions of injection molding the filter plate handle and automatically pulling and demolding.
The automatic core-pulling mechanism, namely a single oil cylinder driving type upper and lower core-pulling mechanism, mainly comprises a core-pulling driving device, an upper core-pulling device and a lower core-pulling device; the core pulling driving device is a single-cylinder core pulling driving device; the upper core pulling device is provided with four upper core pulling rods; the lower core pulling device, namely the redirecting rack device, is provided with two lower core pulling racks, and the double racks are meshed with the gear and can redirect and move; 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 an oil cylinder, the four upper core pulling rods ascend to upwards pull out mold cores with four vertical holes of the handle, and the two lower core pulling racks descend to downwards pull out a trapezoidal insert and a hidden hole mold core at the bottom of the handle seat, so that the vertical direction of the injection molding piece of the filter plate handle is simultaneously and vertically pulled out; for example, a single oil cylinder driving type up-down core pulling and demolding mechanism of a vertical injection mold for a filter plate handle (patent application number 202221218227. X) is mainly used for automatically extracting a mold 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 (namely, demolding of an injection molding part) in the horizontal direction.
The existing single-cylinder driving type up-down core pulling mechanism has the following defects: the special driving oil cylinder is needed, the structure is loose and complex, the occupied space is large, and the device is not suitable for being used in narrow injection molding equipment; the upper core pulling mechanism and the lower core pulling mechanism run in opposite directions, and parts in different directions are easy to be installed wrongly to cause damage, so that two unnecessary blind holes (only two necessary double installation holes in the vertical direction of the filter plate handle) below a handle seat are eliminated by the filter plate handle, and the existing single-cylinder driving type upper core pulling mechanism and the lower core pulling mechanism are not suitable for the injection molding core pulling requirement of the improved filter plate handle.
Disclosure of Invention
The invention aims to overcome the defects of the existing single-cylinder driving type up-down core pulling mechanism, solve the technical problems that the core pulling mechanism needs a special driving cylinder, has a loose and complex structure and larger occupied space, is not suitable for the injection molding core pulling of a filter plate handle without a handle seat blind hole after improvement, and provides a shifting fork rocker arm type force-assisted core pulling mechanism omitting the cylinder and a filter plate handle injection mold; the invention relates to a filter plate handle injection mold, in particular to a filter plate handle injection mold with a shifting fork rocker arm type force-assisted core pulling mechanism which omits an oil cylinder, and the number of the patent names is limited and is short for short.
The invention solves the problems in the prior art by adopting a brand new technical scheme that: the key point of the general technical scheme is that a shifting fork rocker arm type force-borrowing core-pulling mechanism (hereinafter referred to as a shifting fork type force-borrowing core-pulling mechanism) omitting an oil cylinder is as follows: i.e. the innovative overall construction has outstanding essential characteristics compared with the prior art: the pulling fork type force-assisted core pulling mechanism is created, namely the pulling fork is driven by the pulling force of the die opening to drive the linkage rod to automatically pull the core, and the mechanism mainly comprises a left part of the core pulling mechanism and a right part of the core pulling mechanism, and the left part and the right part of the core pulling mechanism are symmetrical in structure; because the installation space is limited, the installation heights of the left and right parts of the core pulling mechanism are different, so that the right mold core is longer than the left mold core; the left part of the core pulling mechanism or the right part of the core pulling mechanism comprises a transmission shifting fork, a rocker shaft assembly (namely, a rocker shaft assembly), a linkage rod, a die core seat, an upper drawing die core (namely, an upper drawing handle mounting hole stepped column die core) and a shifting fork pushing handle; the transmission shifting fork is arranged at the outer end of the rocker arm shaft, two ends of the linkage rod are respectively and movably connected with the rocker arm and the die core seat, the upper drawing die core is arranged on the die core seat in a sleeved mode to form a left part or a right part of the shifting fork type force-assisted core pulling mechanism, and the transmission shifting fork can rotate to drive the upper drawing die core to vertically move; the left part and the right part of the core pulling mechanism are respectively arranged at the left and right corresponding positions of the movable mould, and the shifting fork push-pull hand is arranged at the position corresponding to the fixed mould and the transmission shifting fork; when the die is closed, the pulling fork push-pull hand drives the transmission pulling fork to positively rotate for 90 degrees for core assembly, and when the die is opened, the pulling fork push-pull hand drives the transmission pulling fork to positively rotate for 90 degrees 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 maintained; therefore, the technical problems that a special driving oil cylinder is needed for a core pulling mechanism, the structure is loose and complex, the occupied space is large, and the injection molding core pulling requirement of a filter plate handle without a handle seat blind hole after improvement is not met are solved.
The specific design scheme of the invention is as follows: (1) The transmission shifting fork is a right-angle transmission shifting fork as a whole, an included angle opening of 60 degrees is formed at the clamping angle of the double shifting fork rods, the root arc of the included angle opening is in transition, and the radius of the root arc is larger than that of a push-pull round rod of a push-pull handle of the shifting fork; the right angle of the transmission shifting fork is provided with a concentric shaft hole; (2) The rocker arm shaft assembly, namely the rocker arm linkage shaft assembly, 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 concentric shaft end to form a rocker arm shaft assembly; (3) The linkage rod is a lath-type semicircular head linkage rod, and two ends of the linkage rod are provided with connecting holes; (4) The die core seat is a slope die core seat and is provided with an upper drawing die core embedding hole; (5) The upper drawing die core, namely the upper drawing handle mounting hole stepped column die core, comprises a left die core and a right die core; because the installation space is limited, the installation heights of the left and right parts of the pulling fork type force-assisted core pulling mechanism are different, so that the right mold core is longer than the left mold core; the upper drawing mold core belongs to a mold part, and a drawing mold core is added for convenience in description; (6) The fork pulling handle comprises a push-pull arm and a push-pull round rod; the push-pull arm is L-shaped, and the root of the push-pull arm is larger; the push-pull round rod is vertically arranged at the small end of the push-pull arm to form a fork push handle.
The connection relation of the main parts of the invention is as follows: for convenience of explanation, a movable die and a fixed die which are closely related to the shifting fork type core pulling mechanism by force are additionally arranged; the method comprises the following steps of (1) assembling a pulling fork type force-assisted core pulling mechanism: the transmission shifting fork is arranged at the outer end of the rocker arm shaft, two ends of the linkage rod are respectively and movably connected with the rocker arm and the die core seat, the upper drawing die core is arranged on the die core seat in a sleeved mode to form a left part or a right part of the core pulling mechanism, and the transmission shifting fork can rotate to drive the upper drawing die core to vertically move; (2) general assembly of pulling fork type force-assisted core pulling mechanism: the concentric shaft box of the left part 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 mould corresponding to the transmission shifting fork, and the push-pull round rod of the shifting fork push-pull handle corresponds to the 60-degree included angle opening of the transmission shifting fork, so that a shifting fork type force-aid core pulling mechanism is formed; the special driving oil cylinder for core pulling is omitted, so that the main functions of the original core pulling mechanism are still maintained; (3) dynamic relation of pulling fork type force-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 pushing and pulling hand enters an opening of a 60-degree included angle of the transmission shifting fork to push the transmission shifting fork to positively rotate for 90 degrees for core installation; (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 a shifting fork pushing and pulling hand enters a 60-degree included angle opening of a transmission shifting fork to pull the transmission shifting fork to reversely rotate for 90 degrees for core pulling; the mold cores of the double mounting holes in the vertical direction of the filter plate handle are automatically pulled out, so that the injection molded filter plate handle is automatically ejected in the horizontal direction (namely, the injection molded part is demolded).
The invention also provides a vertical filter plate handle injection molding die (simply called a filter plate handle injection molding die) for automatically pulling and demolding, and the pulling fork rocker arm type force-assisted core pulling mechanism which omits the oil cylinder is used; the filter plate handle injection mold mainly comprises a fixed mold, a mold core, a pouring system, a movable mold, a pull fork type force-aid core-pulling mechanism, an ejection device and a built-in cooling system; the plastic injection molding machine has the functions of injection molding a processing-free filter plate handle and automatic core pulling and demoulding.
The shifting fork rocker arm type force-assisted core pulling mechanism omitting the oil cylinder and the filter plate handle injection mold have the remarkable advantages of simple and compact structure, small occupied space, omitting the driving oil cylinder, shifting fork rocker arm transmission, automatic core pulling by force, reliable performance and convenient installation, and have the beneficial effects that the shifting fork type force-assisted core pulling mechanism is created, namely, the shifting fork is driven by the pulling force of the mold opening to drive the linkage rod automatic core pulling mechanism, so that the special driving oil cylinder for core pulling is omitted, and the main functions of the original core pulling mechanism are still maintained; the injection molding core pulling requirement of the handle-free base blind hole type filter plate is met; the elements are omitted, the cost is reduced and the efficiency is improved.
Drawings
FIG. 1 is a schematic perspective view of a fork-pulling type force-assisted core pulling mechanism (except for a fork pulling handle) of the invention.
Fig. 2 is a schematic perspective view of a half core pulling mechanism of a fork pulling type core pulling mechanism in the invention in a mold closing and core assembling initial state (namely, a fork pulling, pushing and pushing initial state of a transmission fork, and arrow indicates the movement direction of a fork pulling, pushing and pulling handle).
Fig. 3 is a schematic perspective view of a half core pulling mechanism of the pulling fork type force core pulling mechanism in the initial state of mold opening and core pulling (namely, the initial state of pulling and driving pulling fork by pulling fork pushing hand, and arrow indicates the moving direction of pulling fork pushing handle).
Fig. 4 is a schematic perspective view of the assembly of the pull fork type force-assisted core pulling mechanism body and the corresponding movable mold according to the present invention.
FIG. 5 is a schematic perspective view showing the assembly of a fork pulling handle and a corresponding fixed mold of the fork pulling type force core pulling mechanism.
Fig. 6 is a schematic perspective view of a filter plate handle injection molded by a corresponding filter plate handle injection mold according to the present invention.
Reference numerals: the device comprises a 1-transmission shifting fork, a 2-belt rocker shaft assembly, a 3-linkage rod, a 4-die core seat, a 5-upper drawing die core, a 6-moving die, a 7-ejection device, an 8-fixed die, a 9-shifting fork push handle, a 10-filter plate handle, an 11-injection molding opening, a 101-handle mounting hole, a 102-handle main body and a 103-handle mounting seat.
The left part of the core pulling mechanism or the right part of the core pulling mechanism comprises a 1-transmission shifting fork, a 2-belt rocker shaft assembly, a 3-linkage rod, a 4-die core seat and a 5-upper drawing die core.
The semi-core-pulling mechanism comprises a left core-pulling mechanism component or a right core-pulling mechanism component and a 9-fork push handle.
Detailed Description
The following describes the technical solution in the embodiment of the present invention with reference to the drawings in the embodiment of the injection mold of the shifting fork rocker arm type force-aid core pulling mechanism and the filter plate handle of the present invention, wherein the described embodiment is only a part of the preferred embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments that are not creative and made by those skilled in the art, such as a pulling fork type force-assisted core pulling mechanism with the same force-assisted core pulling mode and similar structure, are omitted, and all belong to the protection scope of the present invention.
Example 1
The key points of the innovative overall implementation scheme are that a shifting fork rocker arm type force-assisted core pulling mechanism (called as a shifting fork force-assisted core pulling mechanism for short) omitting an oil cylinder is as follows: the pulling fork type force-assisted core pulling mechanism is created, namely the pulling fork is driven by the pulling force of the die opening to drive the linkage rod to automatically pull the core, and the mechanism mainly comprises a left part of the core pulling mechanism and a right part of the core pulling mechanism, and the left part and the right part of the core pulling mechanism are symmetrical in structure; because the installation space is limited, the installation heights of the left and right parts of the core pulling mechanism are different, so that the right mold core is longer than the left mold core; the left part of the core pulling mechanism or the right part of the core pulling mechanism comprises a transmission shifting fork 1, a rocker shaft assembly 2 (namely, a rocker shaft assembly), a linkage rod 3, a mold core seat 4, an upper drawing mold core 5 (namely, an upper drawing handle mounting hole stepped column mold core) and a shifting fork push handle 9; the transmission shifting fork 1 is arranged at the outer end of the rocker shaft assembly 2, two ends of the linkage rod 3 are respectively and movably connected with the rocker arm and the mold core seat 4, the upper drawing mold core 5 is embedded on the mold core seat 4 to form a left part or a right part of the shifting fork type force-aid core pulling mechanism, and the transmission shifting fork 1 can rotate to drive the upper drawing mold core 5 to vertically move; the left part and the right part of the core pulling mechanism are respectively arranged at the left and right corresponding positions of the movable mould 6, and the shifting fork push handle 9 is arranged at the position of the fixed mould 8 corresponding to the transmission shifting fork 1; when the die is closed, the pulling fork pushing handle 9 pushes the transmission pulling fork 1 to rotate forward for 90 degrees for core assembly, and when the die is opened, the pulling fork pushing handle 9 pulls the transmission pulling fork 1 to rotate reversely for 90 degrees 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 maintained; specific embodiments are described in detail below.
The transmission shifting fork 1 is generally a right-angle transmission shifting fork 1, an included angle opening of 60 degrees is formed at the clamping angle of the double shifting fork rods, the root arc of the included angle opening is in transition, and the radius of the root arc is larger than that of a push-pull round rod of the shifting fork push handle 9; the right angle of the drive fork 1 is provided with a concentric shaft hole. The transmission shifting fork 1 is arranged at the outer end of the rocker shaft assembly 2 and is mainly used for driving the linkage rod 3 to automatically loose core by pulling force (borrowing force) of the transmission shifting fork push handle 9 during die opening.
The rocker arm shaft assembly 2, namely the rocker arm linkage shaft assembly, comprises a concentric shaft, a concentric shaft box and a linkage rocker arm; the concentric shaft is arranged in a concentric shaft box, and the linkage rocker arm is arranged at the concentric shaft end to form the rocker arm shaft assembly 2. The transmission shifting fork 1 is arranged at the outer end of the rocker arm shaft, and two ends of the linkage rod 3 are respectively and movably connected with the rocker arm and the mold core seat 4, and the transmission shifting fork 1 is used for converting the rotation motion of the transmission shifting fork 1 into the vertical linear motion of the linkage rod 3.
The linkage rod 3 is a lath-type semicircular head linkage rod 3, and connecting holes are formed in two ends of the linkage rod. The two ends of the linkage rod 3 are respectively and movably connected with the rocker arm and the mold core seat 4, and are used for converting the rotation motion of the connecting rocker arm into the vertical linear motion of the linkage rod 3 and driving the mold core seat 4 to perform the vertical linear motion.
The mold core seat 4 is a slope-shaped mold core seat 4 and is provided with an embedding hole for the upper drawing mold core 5. The two ends of the linkage rod 3 are respectively and movably connected with a rocker arm and a mold core seat 4, and an upper drawing mold core 5 is embedded on the mold core seat 4 and is used for embedding the upper drawing mold core 5 and driving the upper drawing mold core 5 to perform vertical linear motion so as to realize core filling 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 is limited, the installation heights of the left and right parts of the pulling fork type force-assisted core pulling mechanism are different, and therefore, the right mold core is longer than the left mold core. The upper drawing mold core 5 is inlaid on the mold core seat 4 and is used for forming the handle mounting hole 101 and can automatically draw core by means of a fork-pulling type force-borrowing automatic core-pulling mechanism.
The fork pulling handle 9 comprises a push-pull arm and a push-pull round rod; the push-pull arm is L-shaped, and the root of the push-pull arm is larger; the push-pull round rod is vertically arranged at the small end of the push-pull arm to form a fork push handle 9. For driving the drive fork 1 by means of the push-pull force of the opening and closing mold.
General assembly of pulling fork type force-borrowing core pulling mechanism: the concentric shaft box of the left part of the core pulling mechanism is arranged at the middle upper part of the left side of the movable die 6, and the 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 handle 9 is respectively embedded at the positions corresponding to the transmission shifting fork 1 at the two sides of the fixed mould 8, and the push-pull round rod of the shifting fork push handle 9 corresponds to the 60-degree included angle opening of the transmission shifting fork 1, so that a shifting fork type force-aid core pulling mechanism is formed; the special driving oil cylinder for core pulling is omitted, so that the main function of the original core pulling mechanism is still maintained.
The shifting fork rocker arm type force-borrowing core pulling mechanism capable of omitting the oil cylinder has the advantages of being simple and compact in structure, small in occupied space, capable of omitting the driving oil cylinder and shifting fork rocker arm for transmission, capable of automatically pulling core by force, reliable in performance and convenient to install; the pulling fork can be driven by the pulling force of the die opening to drive the linkage rod 3 to automatically pull the core, so that the technical problems that a special driving oil cylinder is needed for a core pulling mechanism, the structure is loose and complex, the occupied space is large, and the injection molding core pulling requirement of the improved filter plate handle 10 without a handle seat blind hole is not met; the elements are omitted, the cost is reduced and the efficiency is improved.
Example 2
The invention provides an automatic core-pulling and demoulding vertical filter plate handle injection molding mold (simply called a filter plate handle injection mold), which is used for omitting a shifting fork rocker arm type force-pulling core-pulling mechanism (simply called a shifting fork type force-pulling core-pulling mechanism) of an oil cylinder; the filter plate handle injection mold mainly comprises a fixed mold 8 (namely a handle right mold), a mold core of the fixed mold, a pouring system, a movable mold 6 (namely a handle left mold), a shifting fork type force-aid core pulling mechanism, an ejection device 7 and a built-in cooling system; the plastic injection molding machine has the functions of injection molding a processing-free filter plate handle and automatic core pulling and demoulding.
The movable mould 6, namely a left half mould with a mould core and an insert, is a module combined movable mould 6 and comprises a movable mould main body, a handle half mould (a mould capable of demoulding in the horizontal direction), a handle mould core, an insert and a movable mould positioning groove; the handle mold core and the insert comprise an upper drawing mold core 5 (namely an upper drawing handle mounting hole stepped column mold core) for vertically drawing core; the upper drawing mold core 5 is arranged on the fork-pulling type force-assisted core pulling mechanism; the movable mould 6 is arranged at the movable end of the injection molding equipment at the left side of the fixed mould 8 and is used for forming most of the three-dimensional model of the filter plate handle 10 under the auxiliary core-mounting of the shifting fork type force-aid core-pulling mechanism.
The fixed mould 8, namely the right half mould without a mould core and an insert, is an integral fixed mould 8 matched with the movable mould 6 and comprises a fixed mould main body, a half-handle mould (a mould capable of demoulding in the horizontal direction) and a movable mould positioning block; the half-grip model has a partial three-dimensional model of the injection molded filter plate grip 10; the fixed mould 8 is arranged at the fixed end of the injection molding equipment at the right side of the movable mould 6; for synthesizing a three-dimensional model identical to the filter plate handle 10 with the movable mold 6 and casting molten polypropylene.
The ejection device 7, namely an automatic ejection demoulding device for the injection molding piece of the filter plate handle 10 in the horizontal direction, comprises a mould stripping guide rod, an ejection rod, a reset spring and an ejection device seat, and is positioned at the left side of the movable mould 6; the device is used for automatically and horizontally ejecting an injection molding piece after vertical core pulling and mold opening, so that the injection molded filter plate handle 10 is demolded.
The pulling fork type force-borrowing 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 left part of the core pulling mechanism or the right part of the core pulling mechanism comprises a transmission shifting fork 1, a belt rocker shaft assembly 2, a linkage rod 3, a mold core seat 4, an upper drawing mold core 5 and a shifting fork push handle 9. The transmission shifting fork 1 is arranged at the outer end of the rocker shaft assembly 2, two ends of the linkage rod 3 are respectively and movably connected with the rocker and the mold core seat 4, the upper drawing mold core 5 is embedded on the mold core seat 4 to form a left part or a right part of the core pulling mechanism, and the transmission shifting fork 1 can rotate to drive the upper drawing mold core 5 to vertically move.
Final assembly of filter plate handle injection mold: 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 mould 8 is arranged at the fixed end of the injection molding equipment corresponding to the movable mould 6 to form a filter plate handle injection mold main body; the concentric shaft box of the left part of the core pulling mechanism is arranged at the middle upper part of the left side of the movable die 6, and the 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 side of the movable die 6; the double shifting fork push handle 9 is respectively embedded at the positions corresponding to the transmission shifting fork 1 at the two sides of the fixed mould 8, and the push-pull round rod of the shifting fork push handle 9 corresponds to the 60-degree included angle opening of the transmission shifting fork 1, so that a shifting fork type force-aid core pulling mechanism is formed; the special driving oil cylinder for core pulling is omitted, so that the main function of the original core pulling mechanism is still maintained.
The working process of the filter plate handle injection mold comprises the following steps: supported by the injection molding equipment; (1) die assembly and core assembly: the movable end of the injection molding equipment pushes the movable mold 6 to be matched with the fixed mold 8; simultaneously, the left part of the core pulling mechanism and the right part of the core pulling mechanism move forwards along with the moving die 6, and the pulling fork pushing handle 9 enters the 60-degree included angle opening of the transmission pulling fork 1 to push the transmission pulling fork 1 to positively rotate for 90 degrees for core installation; (2) injection molding: pressurizing and injecting molten polypropylene from an injection port 11 to fill a mold cavity; (3) cooling: the mold cavity is maintained pressure, and a cooling system is arranged in the mold cavity to cool the mold, the mold core and the insert; (4) die opening and core pulling: the moving end of the injection molding equipment pulls back the moving die 6: simultaneously, 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, and the shifting fork push handle 9 enters the 60-degree included angle opening of the transmission shifting fork 1 to pull the transmission shifting fork 1 to reversely rotate for 90 degrees for core pulling, namely the upper drawing die 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 ejector 7 automatically and horizontally ejects the injection molded filter plate handle 10 (injection molded article) from the movable mold 6.
The filter plate handle 10, namely a filter plate sliding support handle without a handle seat blind hole of the filter press, has symmetrical double-sided structure, is injection molded by using the corresponding filter plate handle injection mold, and needs to loose core upwards 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, an upper drawing mold core 5 of the handle mounting hole 101 is drawn upwards without obstruction, and the core is pulled by a pulling fork type force-assisted core pulling mechanism; (2) The filter plate handle 10 is provided with a cavity of the handle main body 102, a long hole of the handle mounting seat 103 and the like in the horizontal direction, and the model is demoulded by the horizontal ejection device 7; the filter plate handle 10 is free of machining and has two functions of supporting a filter plate and moving the filter plate.
The invention provides an automatic core-pulling and demoulding vertical filter plate handle injection molding die, which has the beneficial effects that: by creating a pulling fork type force-assisted core pulling mechanism, namely driving the pulling fork to drive the linkage rod 3 to automatically core the mechanism by means of the pulling force of the die opening, a special driving oil cylinder for core pulling is omitted, and the main function of the original core pulling mechanism is still maintained; the injection molding core pulling requirement of the handle 10 of the handle-free base blind hole type filter plate is met; the elements are omitted, the cost is reduced and the efficiency is improved.
Claims (1)
1. An automatic core-pulling and demoulding vertical filter plate handle injection molding die comprises a fixed die, a die core, a pouring system, a movable die, a fork pulling type force-pulling core-pulling mechanism, an ejection device and a built-in cooling system; the method is characterized in that: the pulling fork type force-borrowing core-pulling mechanism is a pulling fork rocker arm type force-borrowing core-pulling mechanism without an oil cylinder; the device mainly comprises a left part of a core pulling mechanism and a right part of the core pulling mechanism, and the two parts are symmetrical in structure; the left part of the core pulling mechanism or the right part of the core pulling mechanism comprises a transmission shifting fork, a belt rocker shaft assembly, a linkage rod, a die core seat, an upper mold core pulling and pushing handle; the method is characterized in that: the transmission shifting fork is a right-angle transmission shifting fork as a whole, an included angle opening of 60 degrees is formed at the clamping angle of the double shifting fork rods, the root arc of the included angle opening is in transition, the radius of the root arc is larger than that of a push-pull round rod of a push-pull handle of the shifting fork, and a right angle of the transmission shifting fork is provided with a concentric shaft hole; the rocker arm shaft assembly 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 rocker arm shaft assembly; the linkage rod is a lath-type semicircular head linkage rod, and two ends of the linkage rod are provided with connecting holes; the die core seat is a slope die core seat and is provided with an upper drawing die core embedding hole; the upper drawing die core, namely the upper drawing handle mounting hole stepped column die core, comprises a left die core and a right die core; the right mold core is longer than the left mold core; the fork pulling handle comprises a push-pull arm and a push-pull round rod; the push-pull arm is L-shaped, and the root of the push-pull arm is larger; the push-pull round rod is vertically arranged at the small end of the push-pull arm to form a fork push handle; the interconnection relationship is: the transmission shifting fork is arranged at the outer end of the rocker arm shaft, two ends of the linkage rod are respectively and movably connected with the rocker arm and the die core seat, the upper drawing die core is arranged on the die core seat in a sleeved mode to form a left part or a right part of the core pulling mechanism, and the transmission shifting fork can rotate to drive the upper drawing die core to vertically move; the concentric shaft box of the left part 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 mould corresponding to the transmission shifting fork, and the push-pull round rod of the shifting fork push-pull handle corresponds to the 60-degree included angle opening of the transmission shifting fork, so that a shifting fork rocker arm type force-assisted core pulling mechanism with an oil cylinder omitted is formed; the pulling fork pushing handle can push the transmission pulling fork to rotate forward for 90 degrees for core assembly in the mold closing process, and can pull the transmission pulling fork to rotate reversely for 90 degrees for core pulling in the mold opening process; the special driving oil cylinder for core pulling is omitted, so that the main functions of the original core pulling mechanism are still maintained; the ejection device is arranged at the moving end of the injection molding equipment, and the moving die is arranged on the ejection device; the fixed mould is arranged at the fixed end of the injection molding equipment corresponding to the movable mould to form an injection mold main body of the filter plate handle; the left part and the right part of the core pulling mechanism of the pull fork type force-assisted core pulling mechanism are respectively arranged on the left side and the right side of the movable die, and the push-pull hands of the double pull forks are respectively embedded at the positions corresponding to the transmission pull forks on the two sides of the fixed die; the plastic injection molding machine has the functions of injection molding a processing-free filter plate handle and automatic core pulling and demoulding.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
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| CN115179508A CN115179508A (en) | 2022-10-14 |
| CN115179508B true CN115179508B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210859875.1A Active 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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| CN (1) | CN115179508B (en) |
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| CN217670845U (en) * | 2022-07-22 | 2022-10-28 | 景津装备股份有限公司 | Pull-fork type gravity-assisted automatic core pulling mechanism of vertical injection mold of filter plate handle |
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Patent Citations (8)
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|---|---|---|---|---|
| CN103192493A (en) * | 2013-04-09 | 2013-07-10 | 滁州浩博科技有限责任公司 | Gas-assisted forming die of automobile door handle |
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| Publication number | Publication date |
|---|---|
| CN115179508A (en) | 2022-10-14 |
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