CN214419473U - Quick assembly and disassembly mechanism of ejector rod for forced resetting of injection molding machine - Google Patents

Abstract

The utility model discloses a quick assembly disassembly mechanism of injection molding machine forced resetting ejector pin, characteristics are including the thimble board, forced resetting ejector pin and lock position board, the preceding terminal surface of thimble board is provided with spacing clamp plate, lock position board can set up between spacing clamp plate and thimble board with moving about from top to bottom, forced resetting ejector pin is provided with annular lock position sunken, the preceding terminal surface of thimble board is provided with the installation jack, the hole of stretching into that link up around being provided with on the spacing clamp plate, the calabash hole that link up around being provided with on the lock position board, the calabash hole sets gradually and the calabash groove and the trepanning that are linked together from top to bottom, the back end that the trepanning can supply the forced resetting ejector pin passes the installation, the width in calabash groove cooperatees with lock position sunken, under the lock position state, the top in calabash groove sets up in lock position sunken, through the ejector pin locking of forced resetting of lock position board is fixed. The advantage is simple structure, realizes laborsaving and quick dismouting to the ejector pin of forcing to reset, can effectively improve whole production efficiency.

Description

Quick assembly and disassembly mechanism of ejector rod for forced resetting of injection molding machine

Technical Field

The utility model relates to an injection molding machine ejector pin that resets by force especially relates to an injection molding machine ejector pin's quick assembly disassembly mechanism that resets by force.

Background

The injection molding machine usually adopts the ejector pin to realize the product and demolds from the mould, and the ejector pin that is used for injection molding machine ejection mechanism now adopts threaded connection's mode snap-on the thimble board usually, and this kind of ejector pin only is fit for being used in the mould inside thimble board have the mould of reset function, but has some moulds in fact usually not to possess the reset function, just at this moment just needs to use the ejector pin of forcing to reset, also called the ejector pin of back-pull structure. The function of the forced resetting ejector rod is that the ejector rod has the function of resetting an ejector plate in the die besides the traditional demoulding. The traditional forced resetting ejector rod usually passes through the back of an ejector plate through a screw and then is locked, namely, every time a mold is changed, the screw behind the forced resetting ejector rod needs to be screwed off, then the forced resetting ejector rod is locked on the changed mold, and then the screw is screwed again.

Disclosure of Invention

The utility model aims to solve the technical problem that a quick assembly disassembly mechanism of ejector pin that resets is forced to injection molding machine that simple structure, can carry out quick assembly disassembly in order to improve production manufacturing efficiency to forcing the ejector pin that resets is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model provides a quick assembly disassembly mechanism of injection molding machine forced return ejector pin, includes thimble board, forced return ejector pin and lock position board, the preceding terminal surface of thimble board be provided with spacing clamp plate, lock position board can set up with moving about from top to bottom spacing clamp plate with the thimble board between, the back end of forced return ejector pin be provided with annular lock position sunken, the preceding terminal surface of thimble board be provided with supply the back end of forced return ejector pin insert the installation jack of installation, spacing clamp plate on be provided with around link up with the coaxial confession of installation jack the back end of forced return ejector pin pass and insert the installation and stretch into the hole in the installation jack, the lock position board on be provided with the calabash hole that link up around, the calabash hole including the calabash groove and the trepanning that set gradually and be linked together from top to bottom, the trepanning can supply the back end of forced return ejector pin pass the installation, the width of calabash groove with the sunken cooperation of lock position, under the lock position state, the top setting in calabash groove the lock position sunken in, through the lock position board will the ejector pin locking of forcing to reset fix.

And a locking releasing mechanism for releasing the locking effect of the locking plate on the forced reset ejector rod is arranged between the locking plate and the ejector plate. The locking release mechanism is used for releasing the locking effect of the locking plate on the forced reset ejector rod, so that the forced reset ejector rod can be rapidly disassembled.

The locking release mechanism comprises a release plate arranged at the top of the rear end face of the locking plate in a horizontal mode, the release plate is arranged above the upper end face of the ejector retainer plate and provided with an installation screw hole which is provided with internal threads and runs through from top to bottom, a matched set screw is arranged in the installation screw hole in a threaded mode, and the bottom of the set screw is always in contact with the upper end face of the ejector retainer plate. The locking release mechanism is simple in structure and convenient to operate, the bottom of the set screw is always abutted to the upper end face of the ejector plate, the release plate can be driven to move up and down only by rotating the set screw, the release plate moves upwards to drive the locking plate to move upwards, the gourd groove moves upwards to separate the locking recess from the gourd groove, the locking effect of the locking plate on the forced reset ejector rod is relieved, the forced reset ejector rod is arranged in the sleeve hole, and the forced reset ejector rod is quickly disassembled; when needing the lock position, through the antiport holding screw, take the release board downwards, the lock position board is downward thereupon this moment, makes the sunken calabash inslot that enters into of lock position to be located the top in calabash groove, realize that the lock position board is fixed to the lock position of forcing the ejector pin that resets.

The lock plate is provided with a vertical long waist groove which is through from front to back, the front end surface of the ejector plate is provided with a guide pillar matched with the long waist groove, and the guide pillar extends into the long waist groove and is matched with the long waist groove to play a role in guiding the up-and-down movement of the lock plate. The guide of the up-and-down movement of the locking plate is realized through the long waist groove and the guide pillar.

The guide post is a guide screw, the front end face of the ejector plate is provided with a mounting hole matched with the guide screw, the rod part of the guide screw is matched with the long waist groove and penetrates through the long waist groove to be installed in the mounting hole in a threaded manner, and the head part of the guide screw is arranged outside the long waist groove. The guide post is a guide screw, the guide is realized through the matching of the rod part of the guide screw and the long waist groove, and the stable installation of the locking plate on the ejector plate is realized through the head part of the guide screw.

The limiting pressing plate comprises an upper limiting pressing plate, a middle limiting pressing plate and a lower limiting pressing plate which are sequentially arranged on the ejector plate from top to bottom, two forced resetting ejector rods are arranged between the upper limiting pressing plate and the ejector plate at intervals from left to right, one forced resetting ejector rod is arranged between the middle limiting pressing plate and the ejector plate, and two forced resetting ejector rods are arranged between the lower limiting pressing plate and the ejector plate at intervals from left to right;

the upper limiting pressing plate is fixedly arranged on the front end surface of the ejector plate at intervals, an upper movable gap is formed between the upper limiting pressing plate and the ejector plate, and the upper part of the locking plate can be movably arranged in the upper movable gap up and down; the middle limiting pressing plate is fixedly arranged on the front end face of the ejector plate, the rear end face of the middle limiting pressing plate is recessed forwards to form a vertically through movable groove, a middle movable gap is formed between the movable groove and the front end face of the ejector plate, and the middle part of the locking plate can be movably arranged in the middle movable gap up and down; the lower limiting pressing plate is fixedly arranged on the front end face of the ejector plate at intervals, a lower movable gap is formed between the lower limiting pressing plate and the ejector plate, and the lower part of the locking plate can be movably arranged in the lower movable gap up and down. The structure not only realizes the stable installation of the locking plate on the ejector plate, but also realizes the stable up-and-down movement of the locking plate, and the structure is simple.

Two sides of the upper limiting pressure plate are respectively provided with an upper mounting arm, the two upper mounting arms are arranged oppositely, and the two upper mounting arms are respectively and fixedly mounted on two sides of the upper part of the ejector plate; lower installation arms are respectively arranged on two sides of the lower limiting pressure plate, the two lower installation arms are arranged oppositely, and the two lower installation arms are respectively and fixedly installed on two sides of the lower portion of the ejector plate. The structure realizes the stable installation among the upper limit plate, the lower limit plate and the ejector plate.

The rear end face of the upper limiting pressing plate is provided with an upper guiding convex block in a backward protruding mode, a long strip-shaped upper guiding groove which is through from front to back is vertically formed in the position, corresponding to the upper guiding convex block, of the locking plate, and the upper guiding convex block is arranged in the upper guiding groove. The upper guide lug and the upper guide groove further play a role in guiding the up-and-down movement of the locking plate.

The rear end face of the lower limiting pressing plate is provided with a lower guide protruding block in a backward protruding mode, a long strip-shaped lower guide groove which is through from front to back is vertically formed in the position, corresponding to the lower guide protruding block, of the locking plate, the lower portion of the lower guide groove is open, and the lower guide protruding block is arranged in the lower guide groove. The upper and lower movement of the locking plate is further guided by the lower guide convex block and the lower guide groove.

Compared with the prior art, the utility model has the advantages of: the forced reset ejector rod disassembly and assembly device is simple in structure and capable of achieving quick disassembly and locking installation of the forced reset ejector rod, the top of a gourd groove arranged on a locking plate is arranged in a locking recess of the forced reset ejector rod in a locking state, the forced reset ejector rod is locked and fixed on an ejector plate through the locking plate at the moment, when the forced reset ejector rod needs to be disassembled, the locking plate is driven to move upwards, the part, provided with the locking recess, of the forced reset ejector rod enters a trepan boring, locking removal is achieved at the moment, the forced reset ejector rod can be disassembled from the ejector plate, labor-saving and quick disassembly and assembly are achieved, and overall production efficiency can be effectively improved; in addition, the limiting pressing plate can be used for protecting the locking plate in the working process, and the locking plate is prevented from deforming when being impacted.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the utility model in the locked state;

fig. 2 is a first schematic sectional view of the present invention in a locked state;

fig. 3 is a second schematic sectional view of the present invention in a locked state;

fig. 4 is a schematic perspective view of the present invention in a release state;

fig. 5 is a first schematic sectional view of the present invention in a release state;

fig. 6 is a second cross-sectional structural diagram of the present invention in a release state;

fig. 7 is an exploded schematic view of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 7, a quick dismounting mechanism for a forced reset ejector rod of an injection molding machine comprises an ejector plate 1, a forced reset ejector rod 2 and a locking plate 3, wherein a limiting pressing plate is arranged on the front end surface of the ejector plate 1, the locking plate 3 is movably arranged between the limiting pressing plate and the ejector plate 1 up and down, an annular locking recess 21 is arranged at the rear end of the forced reset ejector rod 2, a mounting jack 11 for inserting and mounting the rear end of the forced reset ejector rod 2 is arranged on the front end surface of the ejector plate 1, an insertion hole 10 which is through from front to back and coaxial with the mounting jack 11 and is used for inserting and mounting the rear end of the forced reset ejector rod 2 into the mounting jack 11 is arranged on the limiting pressing plate, a gourd hole which is through from front to back is arranged on the locking plate 3, the gourd hole comprises a gourd groove 301 and a sleeve hole 302 which are sequentially arranged and communicated from top to bottom, and the sleeve hole 302 can be used for inserting and mounting the rear end of the forced reset ejector rod 2, the width of calabash groove 301 cooperatees with the sunken 21 of lock position, and under the lock position state, the top setting of calabash groove 301 is in the sunken 21 of lock position, and it is fixed to lock through the ejector pin 2 that will force to reset through lock position board 3.

In this embodiment, a locking release mechanism for releasing the locking action of the locking plate 3 on the forced resetting carrier rod 2 is provided between the locking plate 3 and the carrier rod plate 1. Through the locking release mechanism, the locking effect of the locking plate 3 on the forced resetting ejector rod 2 is relieved, and therefore the forced resetting ejector rod 2 is rapidly disassembled.

In this embodiment, the locking release mechanism comprises a horizontally arranged release plate 4 arranged on the top of the rear end face of the locking plate 3, the release plate 4 is arranged above the upper end face of the ejector plate 1, an installation screw hole 41 with internal threads and communicated up and down is arranged on the release plate 4, a matched set screw 5 is screwed in the installation screw hole 41, and the bottom of the set screw 5 is always in contact with the upper end face of the ejector plate 1. The locking release mechanism is simple in structure and convenient to operate, the bottom of the set screw 5 is always abutted to the upper end face of the ejector plate 1, the release plate 4 can be driven to move up and down only by rotating the set screw 5, the release plate 4 moves upwards and drives the locking plate 3 to move upwards, the gourd groove 301 moves upwards, the locking recess 21 is separated from the locking recess, the locking effect of the locking plate 3 on the forced reset ejector rod 2 is relieved, the forced reset ejector rod 2 is arranged in the sleeve hole 302, and the forced reset ejector rod 2 is quickly disassembled; when needing the lock position, through the reversing rotation holding screw 5, take release plate 4 downwards, lock position board 3 is downward thereupon this moment, makes the sunken 21 entering of lock position calabash groove 301 to be located the top of calabash groove 301, realize that lock position board 3 is fixed to the lock position of forcing reset ejector pin 2.

In this embodiment, the locking plate 3 is provided with a vertical long waist groove 31 penetrating from front to back, the front end surface of the ejector plate 1 is provided with a guide post matched with the long waist groove 31, and the guide post extends into the long waist groove 31 and is matched with the long waist groove 31 to guide the up-and-down movement of the locking plate 3. The long waist groove 31 and the guide post realize the up-and-down movement guide of the locking plate 3.

In this embodiment, the guide post is a guide screw 6, the front end surface of the ejector plate 1 is provided with a mounting hole 12 matched with the guide screw 6, a rod part 61 of the guide screw 6 is matched with the long waist groove 31 and penetrates through the long waist groove 31 to be mounted in the mounting hole 12 in a threaded manner, and a head part 62 of the guide screw 6 is arranged outside the long waist groove 31. The guide post is a guide screw 6, the guide is realized through the matching of a rod part 61 of the guide screw 6 and the long waist groove 31, and the stable installation of the locking plate 3 on the ejector plate 1 is realized through a head part 62 of the guide screw 6.

In the specific embodiment, the limiting pressing plate comprises an upper limiting pressing plate 7, a middle limiting pressing plate 8 and a lower limiting pressing plate 9 which are sequentially arranged on the ejector plate 1 from top to bottom, two forced reset ejector rods 2 are arranged between the upper limiting pressing plate 7 and the ejector plate 1 at intervals from left to right, one forced reset ejector rod 2 is arranged between the middle limiting pressing plate 8 and the ejector plate 1, and two forced reset ejector rods 2 are arranged between the lower limiting pressing plate 9 and the ejector plate 1 at intervals from left to right;

the upper limiting pressing plate 7 is fixedly arranged on the front end surface of the ejector plate 1 at intervals, an upper movable gap (not shown in the figure) is formed between the upper limiting pressing plate 7 and the front part of the ejector plate 1, and the upper part of the locking plate 3 can be movably arranged in the upper movable gap up and down; the middle limiting pressing plate 8 is fixedly arranged on the front end face of the ejector plate 1, the rear end face of the middle limiting pressing plate 8 is recessed forwards to form a movable groove 81 which is communicated up and down, a middle movable gap (not shown in the figure) is formed between the movable groove 81 and the front end face of the ejector plate 1, and the middle part of the locking plate 3 can be movably arranged in the middle movable gap up and down; the lower limiting pressing plate 9 is installed on the front end face of the ejector plate 1 at fixed intervals, a lower movable gap (not shown in the figure) is formed between the lower limiting pressing plate 9 and the front of the ejector plate 1, and the lower part of the locking plate 3 can be movably arranged in the lower movable gap up and down. The structure not only realizes the stable installation of the locking plate 3 on the ejector plate 1, but also realizes the stable up-and-down movement of the locking plate 3, and the structure is simple.

In this embodiment, two sides of the upper limiting pressure plate 7 are respectively provided with an upper mounting arm 71, the two upper mounting arms 71 are arranged oppositely, and the two upper mounting arms 71 are respectively fixedly mounted on two sides of the upper part of the ejector plate 1; lower mounting arms 91 are respectively arranged on two sides of the lower limiting pressing plate 9, the two lower mounting arms 91 are arranged oppositely, and the two lower mounting arms 91 are respectively and fixedly mounted on two sides of the lower part of the ejector plate 1. The structure realizes the stable installation between the upper limit plate, the lower limit plate and the ejector plate 1.

In this embodiment, the rear end surface of the upper limiting pressure plate 7 is provided with an upper guide protrusion 72 protruding rearward, an elongated upper guide groove 32 penetrating forward and rearward is vertically provided on the lock plate 3 at a position corresponding to the upper guide protrusion 72, and the upper guide protrusion 72 is provided in the upper guide groove 32. The upper guide projection 72 and the upper guide groove 32 further guide the up-and-down movement of the locking plate 3.

In this embodiment, the rear end surface of the lower limit pressure plate 9 is provided with a lower guide protrusion 92 protruding rearward, an elongated lower guide groove 33 penetrating forward and rearward is vertically provided on the lock plate 3 at a position corresponding to the lower guide protrusion 92, a lower portion of the lower guide groove 33 is opened, and the lower guide protrusion 92 is provided in the lower guide groove 33. The up-and-down movement of the locking plate 3 is further guided by the lower guide protrusion 92 and the lower guide groove 33.

When the forced reset ejector rod 2 is pre-installed, firstly, the locking plate 3 is brought up by rotating the set screw 5, so that the sleeve hole 302 on the locking plate 3 and the stretching hole 10 on the limiting pressure plate are aligned with the position of the installation jack 11 on the ejector plate 1 one by one, the rear end of the forced reset ejector rod 2 sequentially passes through the stretching hole 10 and the sleeve hole 302 to be inserted and installed in the installation jack 11, after the forced reset ejector rod is inserted and installed in place, the set screw 5 is reversely rotated to make the locking plate 3 fall down, so that the top of the gourd groove 301 enters the locking recess 31, the locking plate 3 locks the position of the forced reset ejector rod 2, in a locking state, the guide screw 6 is positioned at the top end of the long waist groove 31, the upper guide lug 72 is positioned at the top end of the upper guide groove 32, the lower guide lug 92 is positioned at the bottom end of the lower guide groove 33, when the forced reset ejector rod 2 needs to be disassembled, the locking plate 3 is brought up by rotating the set screw 5, the part of the forced reset ejector rod 2 provided with the locking recess 31 enters the sleeve hole 302, and the positions of the sleeve hole 302, the stretching hole 10 and the mounting insertion hole 11 are aligned one by one again, so that the forced reset ejector rod 2 can be detached from the ejector plate 1.

Claims (9)

1. The quick disassembly and assembly mechanism of the forced reset ejector rod of the injection molding machine is characterized by comprising an ejector plate, the forced reset ejector rod and a locking plate, wherein a limiting pressing plate is arranged on the front end face of the ejector plate, the locking plate can be movably arranged between the limiting pressing plate and the ejector plate up and down, an annular locking recess is arranged at the rear end of the forced reset ejector rod, a mounting jack for inserting and mounting the rear end of the forced reset ejector rod is arranged on the front end face of the ejector plate, a through gourd hole is formed in the locking plate, the gourd hole comprises a gourd groove and a jacket hole which are sequentially arranged up and down and are communicated, the trepanning can supply the back end of forced resetting ejector pin pass the installation, the width of calabash groove with the sunken cooperation of lock position, under the lock position state, the top setting of calabash groove be in the lock position sunken in, through the lock position board will forced resetting ejector pin locking fix.

2. The quick assembling and disassembling mechanism for a forced return ram of an injection molding machine according to claim 1, wherein a lock releasing mechanism for releasing the lock action of the lock plate on the forced return ram is provided between the lock plate and the ram plate.

3. The quick assembling and disassembling mechanism for the ejector rod of the forced reset of the injection molding machine as claimed in claim 2, wherein the locking position releasing mechanism comprises a horizontally arranged releasing plate arranged on the top of the rear end face of the locking plate, the releasing plate is arranged above the upper end face of the ejector plate, the releasing plate is provided with a vertically through mounting screw hole with internal threads, a matching set screw is screwed in the mounting screw hole, and the bottom of the set screw is always in contact with the upper end face of the ejector plate.

4. The quick assembling and disassembling mechanism for the ejector rod of the forced reset of the injection molding machine as claimed in claim 1, wherein the lock position plate is provided with a vertical long waist groove which is through from front to back, the front end surface of the ejector plate is provided with a guide post which is matched with the long waist groove, and the guide post extends into the long waist groove and is matched with the long waist groove to guide the up-and-down movement of the lock position plate.

5. The quick-release mechanism for the ejector pin of the injection molding machine, which is forced to reset as claimed in claim 4, wherein the guide post is a guide screw, the front end face of the ejector plate is provided with a mounting hole matched with the guide screw, the rod part of the guide screw is matched with the long waist groove and penetrates through the long waist groove to be installed in the mounting hole in a threaded manner, and the head part of the guide screw is arranged outside the long waist groove.

6. The quick assembling and disassembling mechanism for the forced reset ejector rod of the injection molding machine according to claim 1, characterized in that the limit pressure plate comprises an upper limit pressure plate, a middle limit pressure plate and a lower limit pressure plate which are sequentially arranged on the ejector plate from top to bottom, two forced reset ejector rods are arranged between the upper limit pressure plate and the ejector plate at intervals from left to right, one forced reset ejector rod is arranged between the middle limit pressure plate and the ejector plate, and two forced reset ejector rods are arranged between the lower limit pressure plate and the ejector plate at intervals from left to right;

the upper limiting pressing plate is fixedly arranged on the front end surface of the ejector plate at intervals, an upper movable gap is formed between the upper limiting pressing plate and the ejector plate, and the upper part of the locking plate can be movably arranged in the upper movable gap up and down; the middle limiting pressing plate is fixedly arranged on the front end face of the ejector plate, the rear end face of the middle limiting pressing plate is recessed forwards to form a vertically through movable groove, a middle movable gap is formed between the movable groove and the front end face of the ejector plate, and the middle part of the locking plate can be movably arranged in the middle movable gap up and down; the lower limiting pressing plate is fixedly arranged on the front end face of the ejector plate at intervals, a lower movable gap is formed between the lower limiting pressing plate and the ejector plate, and the lower part of the locking plate can be movably arranged in the lower movable gap up and down.

7. The quick assembling and disassembling mechanism for a forced return ram of an injection molding machine according to claim 6, wherein the upper limiting pressure plate is provided at both sides thereof with upper mounting arms, respectively, the two upper mounting arms being disposed opposite to each other and fixedly mounted at both sides of the upper portion of the ejector plate, respectively; lower installation arms are respectively arranged on two sides of the lower limiting pressure plate, the two lower installation arms are arranged oppositely, and the two lower installation arms are respectively and fixedly installed on two sides of the lower portion of the ejector plate.

8. The quick assembling and disassembling mechanism for a forced return ram of an injection molding machine according to claim 6, wherein the rear end face of the upper limit pressure plate is provided with an upper guide projection projecting rearward, an elongated upper guide groove penetrating forward and rearward is vertically provided at a position of the lock plate corresponding to the upper guide projection, and the upper guide projection is provided in the upper guide groove.

9. The quick assembling and disassembling mechanism for a forced return ram of an injection molding machine according to claim 6 or 8, wherein the rear end face of the lower limit pressure plate is provided with a lower guide projection projecting rearward, an elongated lower guide groove extending forward and rearward is vertically provided in the lock position plate at a position corresponding to the lower guide projection, the lower guide groove is opened at a lower portion thereof, and the lower guide projection is provided in the lower guide groove.

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