CN210525682U - Front and rear mold adjusting mechanism of injection molding machine - Google Patents

Abstract

The utility model discloses a mould mode mechanism is transferred to mould around injection molding machine belongs to injection molding machine equipment technical field, its characterized in that: the injection molding machine comprises a front mold adjusting mechanism arranged on the end surface of a mold adjusting plate of the injection molding machine and a rear mold adjusting mechanism arranged at the bottom of a tail plate of the injection molding machine; the mold adjusting stud I is provided with a gear assembly I in a meshing mode, the gear assembly I is provided with a gear assembly II and a gear assembly III through a chain, and the gear assembly II is connected with the gear ring in a meshing mode; a drawing rod connected with the other end of the mold adjusting stud I is arranged into a two-end structure; the utility model has the advantages that: this device is transferred the mould mechanism through front and back mould and is adjusted the clamping force, and the pull rod of both ends formula structure is transferred to the front mould of independent regulation and control mechanism cooperation has realized the separation of pull rod, has solved when utilizing the driving installation to dismantle the mould, need hoist the mould to two pull rod positions above, to the higher problem of factory building and hoisting equipment height requirement.

Description

Front and rear mold adjusting mechanism of injection molding machine

The technical field is as follows:

the utility model belongs to the technical field of injection molding machine equipment, more specifically relates to a mould mode adjustment mechanism around injection molding machine.

Background art:

at present, in the industries of plastic processing, metal die casting and rubber processing, a die locking device used by injection molding equipment and die casting equipment is mostly of a two-plate type (two-plate machine for short). The two-plate mode locking device is widely applied due to simple and compact structure and easy use. The two-plate mode locking device generally comprises a movable template, a fixed template, a pull rod, a mode locking oil cylinder, a band-type brake assembly and the like, wherein the pull rod is connected between the movable template and the fixed template and is used for moving the movable template on the fixed template.

At present, in the industries of plastic processing, metal die casting and rubber processing, a die locking device used by injection molding equipment and die casting equipment is mostly of a two-plate type (two-plate machine for short). The two-plate mode locking device is widely applied due to simple and compact structure and easy use. The two-plate mode locking device generally comprises a movable template, a fixed template, a pull rod, a mode locking oil cylinder, a band-type brake assembly and the like, wherein the pull rod is connected between the movable template and the fixed template and is used for moving the movable template on the fixed template.

The patent number 201720172006.6's national utility model discloses a two board-like mode locking devices, this two board-like injection molding machine's pull rod is relatively fixed with the fixed die plate in the mechanism, can not realize axial displacement, is provided with the pull rod between movable mould board and the fixed die plate all the time, is provided with the mould between movable mould board and the fixed die plate, and the customer need hoist the mould to being higher than two pull rod positions in the top when utilizing the driving installation to dismantle the mould. The method has higher requirements on the height of a factory building and hoisting equipment, and particularly has higher requirements on investment and capital construction of the factory building by a large-scale injection molding machine.

Patent grant publication no: CN201089205Y refers to a structure of a tie bar for injection molding machine and patent grant publication no: the CN101422943B refers to a drawing rod structure in a large injection molding machine, which can solve the above problems, wherein the structure of CN201089205Y is complex in structure composed of multiple groups of gears, motors, oil cylinders, etc., and front and rear nuts need to be ground, so that the difficulty of part processing is increased, and the interchangeability of parts is poor; the CN101422943B structural feature is for being divided into two lamella formulas with the nut around the pull rod both ends, closes and opens it with hydraulic cylinder, takes out the pull rod with the pneumatic cylinder of arranging in the back template, and this structure can't be suitable for in two board-like injection molding machines.

The patent number of the injection molding machine application that this company researched and developed is 201821559792.6's national utility model patent discloses a pull rod structure of two board-like injection molding machines: the linear slide rail on the main beam is matched with the drawing rod oil cylinder to realize the pulling of the mold locking oil cylinder assembly, so that the use of a plurality of groups of gears, motors, oil cylinders and nuts is avoided, and the problem of nut matching grinding is solved; the drawing rod can be stretched by the fixed template, so that the drawing rod is separated from the movable template and the fixed template, and the problem that the height requirements of a workshop and hoisting equipment are high because the mold needs to be hoisted to a position higher than the two pull rods above the mold is solved; the limit oil cylinder controls the limit of the pull rod through the piston rod, so that the axial movement of the pull rod and the mold locking oil cylinder assembly is prevented when the injection molding machine is normally produced, and the safety performance of the device is improved;

however, the structure has some defects, and as the fixed template is provided with the comb-shaped groove, the locking structure of the die adjusting stud is required to be separated from the comb-shaped groove every time the lifting is required; the second is for adapting to the locking structure, and comb type inslot diameter is less than the through-hole of fixed die plate, and then stability is not enough when with tensile pull pole, produces certain influence to the structure of parallel slide rail, especially along with the increase of dismouting number of times, comb type trench shift and deformation lead to reducing with locking structure block leakproofness.

The utility model has the following contents:

in order to solve the problems and overcome the defects of the prior art, the utility model provides a front and back mould adjusting mechanism of an injection molding machine;

the first technical problem to be solved is that: the conventional pull rod and the mold adjusting stud of the two-plate injection molding machine are matched with the mold adjusting mechanism on the fixed template, the mold adjusting stud cannot be separated from the mold adjusting mechanism and is axially drawn out, a mold is arranged between the movable template and the fixed template, when a customer installs and detaches the mold by utilizing a travelling crane, the mold needs to be lifted to a position higher than the two pull rods above, and the height requirements on a workshop and lifting equipment are higher

The second technical problem to be solved is that: the automatic drawing rod structure of the two-plate injection molding machine needs to separate a locking structure of a mold adjusting stud from a comb-shaped groove every time the lifting is needed, and along with the increase of the dismounting times, the clamping tightness of the comb-shaped groove and the locking structure is reduced due to displacement and deformation of the comb-shaped groove;

the third technical problem to be solved is: in order to be suitable for the locking structure, the inner diameter of the comb-shaped groove is smaller than the through hole of the fixed template, the end part lacks support, and the stability of the drawing rod is insufficient, so that the structure of the parallel sliding rail is influenced to a certain extent.

The utility model provides a concrete technical scheme of above-mentioned technical problem does: front and back mould mode transfer mechanism of injection molding machine, its characterized in that: the injection molding machine comprises a front mold adjusting mechanism arranged on the end surface of a mold adjusting plate of the injection molding machine and a rear mold adjusting mechanism arranged at the bottom of a tail plate of the injection molding machine;

the front mold adjusting mechanism comprises a synchronous motor, mold adjusting studs screwed on four end pins of the mold adjusting plate and gear rings arranged on the end face of the mold adjusting plate of the injection molding machine and capable of circumferentially running along the axial direction of the mold adjusting plate, the upper end and the lower end of each gear ring are symmetrically provided with the synchronous motor, and an output shaft of each synchronous motor is connected with the gear rings in a meshing manner; the die adjusting stud is matched with the comb-shaped groove arranged on the die adjusting plate and arranged at the end part of the drawing rod;

the die adjusting studs are symmetrically arranged on the outer sides of four end pins of the gear ring and comprise a die adjusting stud I, a die adjusting stud II, a die adjusting stud III and a die adjusting stud IV, a first gear is arranged on the outer side of the gear ring, and the gear ring is directly connected with the die adjusting stud II, the die adjusting stud III and the die adjusting stud IV in a meshing mode through the first gear;

the die adjusting stud I is provided with a gear assembly I in a meshing mode, the gear assembly I is provided with a gear assembly II and a gear assembly III through a chain, and the gear assembly II is connected with the gear ring in a meshing mode; a drawing rod connected with the other end of the mold adjusting stud I is arranged into a two-end structure and is fixedly connected through a pin shaft; and the gear assembly III is provided with a drawing motor in a meshing mode.

Furthermore, gear assembly I include the mandrel and with the coaxial driving gear I, driving gear II and the driving gear III that sets up of mandrel, driving gear I and first gear isodiametric setting, driving gear II and driving gear III all through round pin axle and mandrel separable connection, driving gear I and mandrel fixed connection.

Further, the gear assembly II comprises a mandrel, a driven gear I and a driven gear II which are coaxially arranged with the mandrel; the driving gear III and the driven gear II are arranged in an equal-diameter mode, and the gear assembly III comprises a mandrel, and a driven gear III and a driven gear IV which are coaxially arranged with the mandrel.

Furthermore, a driving gear I of the gear assembly I is matched with a die adjusting stud I in a meshing mode, and a driving gear II is matched with a driven gear II through a chain; and the driving gear III is matched with the driven gear IV through a chain.

Further, the driven gear I is matched with the gear ring in a meshing mode;

further, the driven gear iii is engaged with a gear of an output shaft of the drawing motor by meshing.

Furthermore, the first gear, the driving gear I, the driven gear I and the driven gear III are connected to the adjusting plate through spindles arranged at the central parts.

Furthermore, the ends of the spindles of the gear assembly I, the gear assembly II and the gear assembly III are provided with a bracket fixed with the template through a rotary connection mode.

Furthermore, the rear die adjusting mechanism comprises a front nut pressing plate and a front nut which are arranged at four corners of the tail plate, and the front nut pressing plate is adjusted and confined through the front nut and the tail plate.

The utility model has the advantages that:

the device adjusts the mold locking force through the front and rear mold adjusting mechanisms, and solves the problems that when the mold locking force is insufficient, the mold is separated from the seam, and plastic overflow and leakage occur; the die is deformed when the die is too large, and the product generates internal stress and unnecessary energy consumption, thereby causing the problem of shortening the service life of equipment;

the independently regulated front mold adjusting mechanism arranged in the device is matched with the drawing rods of the two-end structure, so that the operation of adjusting mold locking force and separating the mold adjusting studs independently is realized, and the problem that the height requirements of a workshop and lifting equipment are high because the mold needs to be lifted to a position higher than two pull rods above when the mold is mounted and dismounted by a travelling crane is solved;

the automatic pull rod structure of two board-like injection molding machines of this device, the pull rod of the front mould mode adjusting mechanism cooperation both ends formula structure of independent regulation and control has avoided when every needs hoist and mount, need break away from with the comb type groove with the locking structure of accent mould double-screw bolt, along with the increase of dismouting number of times, comb type trench displacement and deformation lead to the problem that reduces with locking structure block seal degree.

Description of the drawings:

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

FIG. 2 is a schematic structural view of a front mold adjusting mechanism of the present invention;

FIG. 3 is a schematic structural view of the gear assembly of the present invention;

FIG. 4 is a schematic view of the novel structure of the tail plate of the present invention;

FIG. 5 is a schematic structural view of a rear mold adjusting mechanism of the present invention; in the drawings:

1. adjusting a template; 2. moving the template; 3. a pull rod; 4. a tail plate; 5. adjusting a die stud; 6. a rear mold adjusting mechanism; 11. adjusting a die stud II; 12. a pull motor; 13. a gear assembly III; 14. a chain; 15. a gear assembly I; 16. adjusting a die stud I; 17. a gear assembly II; 18. a first gear; 19. adjusting a die stud IV; 20. a ring gear; 21. a synchronous motor; 22. adjusting a die stud III; 111. a driving gear I; 112. a driving gear II; 113. a driving gear III; 114. a mandrel; 115. a driven gear I; 116. a driven gear II; 117. a driven gear III; 118. a driven gear IV; 119. a front nut pressing plate; 120. a front nut.

The specific implementation mode is as follows:

to further clarify the objects, aspects and advantages of the present invention, a more complete description of the invention will now be rendered by reference to the appended drawings, which are illustrated in fig. 1-5. In describing the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model discloses a concrete implementation mode: the front and rear die adjusting mechanism of the injection molding machine comprises a front die adjusting mechanism arranged on the end surface of the adjusting plate 1 of the injection molding machine and a rear die adjusting mechanism 6 arranged at the bottom of the tail plate 4 of the injection molding machine;

the front mold adjusting mechanism comprises synchronous motors 21, mold adjusting studs 5 screwed on four end pins of the mold adjusting plate 1 and gear rings 20 which are arranged on the end face of the mold adjusting plate 1 of the injection molding machine and can circumferentially run along the axial direction, the synchronous motors 21 are symmetrically arranged at the upper end and the lower end of the gear rings 20, and output shafts of the synchronous motors 21 are connected with the gear rings 20 in a meshing manner; the die adjusting stud 5 is matched with a comb-shaped groove arranged on the die adjusting plate 1, and the die adjusting stud 5 is arranged at the end part of the drawing rod 3;

the die adjusting studs 5 are symmetrically arranged on the outer sides of four end pins of the gear ring 20 and comprise a die adjusting stud I16, a die adjusting stud II 11, a die adjusting stud III 22 and a die adjusting stud IV 19, a first gear 18 is arranged on the outer side of the gear ring 20, and the gear ring 20 is directly connected with the die adjusting stud II 11, the die adjusting stud III 22 and the die adjusting stud IV 19 in a meshing mode through the first gear 18;

the die adjusting stud I16 is provided with a gear assembly I15 in a meshing mode, the gear assembly I15 is provided with a gear assembly II 17 and a gear assembly III 13 through a chain 14, and the gear assembly II 17 is connected with the gear ring 20 in a meshing mode; the drawing rod 3 connected with the other end of the mold adjusting stud I16 is arranged into a two-end structure and is fixedly connected through a pin shaft; the gear assembly iii 13 is provided with a pull motor 12 in a meshed manner.

Furthermore, the gear assembly I15 comprises a spindle 114, and a driving gear I111, a driving gear II 112 and a driving gear III 113 which are coaxially arranged with the spindle 114, wherein the driving gear I111 and the first gear 18 are arranged in an equal diameter manner, the driving gear II 112 and the driving gear III 113 are both detachably connected with the spindle 114 through a pin shaft, and the driving gear I111 is fixedly connected with the spindle 114.

Further, the gear assembly II 17 comprises a spindle 114, a driven gear I115 and a driven gear II 116 which are coaxially arranged with the spindle 114; the driving gear III 113 and the driven gear II 116 are arranged in an equal diameter mode, and the gear assembly III 13 comprises a spindle 114, and a driven gear III 117 and a driven gear IV 118 which are coaxially arranged with the spindle 114.

Further, a driving gear I111 of the gear assembly I15 is matched with a die adjusting stud I16 in a meshing mode, and a driving gear II 112 is matched with a driven gear II 116 through a chain 14; the driving gear iii 113 is engaged with the driven gear iv 118 through the chain 14.

Further, the driven gear I115 is matched with the gear ring 20 in a meshing mode;

further, the driven gear iii 117 is engaged with the gear of the output shaft of the drawer motor 12 by meshing.

Further, the first gear 18, the driving gear i 111, the driven gear i 115, and the driven gear iii 117 are connected to the index plate 1 through a spindle 114 provided at a central portion.

Further, the ends of the spindles 114 of the gear assembly I15, the gear assembly II 17 and the gear assembly III 13 are provided with brackets fixed with the adjusting plate 1 in a rotating connection mode.

Further, the rear mold adjusting mechanism 6 includes a front nut pressing plate 119 and a front nut 120 disposed at four corners of the tail plate 4, and the front nut pressing plate 119 is adjusted and locked with the tail plate 4 through the front nut 120.

It is noted that the utility model relates to a front and back mold adjusting mechanism of an injection molding machine, when in specific work,

the first embodiment is as follows:

i when needing hoist and mount mould:

1. a pin shaft of the drawing rod 3 between the movable template 2 and the tail plate 4 is taken out by a tool, so that the drawing rod 3 is divided into two ends; taking out the pin shaft connecting the driving gear III 113 and the mandrel 114;

2. the drawing motor 12 is started, the drawing motor 12 drives the moving gear III 117 to rotate, the moving gear III 117 is coaxial with the driven gear IV 118, the driving gear II 112 is further driven to rotate through the chain 14, at the moment, the driving gear III 113 is idle due to the fact that a pin shaft connected with the mandrel 114 is taken out, the driving gear II 112 drives the driving gear I111 and the die adjusting stud I16 to rotate, the die adjusting stud I16 is matched with a comb-shaped groove formed in the die adjusting plate 1, the die adjusting stud I16 is further moved forwards, and the pin shaft of the drawing rod 3 between the moving die plate 2 and the tail plate 4 is taken out, so that the drawing rod 3 is divided into two ends, and a gap is formed;

3. at the moment, a cable of the cable car passes through the gap formed in the step 2, the mould passes through the space between the upper drawing rod 3 and the lower drawing rod 3, moves to the space between the movable mould plate 2 and the tail plate 4, is fixed, and then is locked through a crank connecting rod structure;

4. starting the synchronous motor 21, wherein the synchronous motor 21 drives the gear ring 20 to rotate, and further drives the first gear 18; the first gear 18 drives the die adjusting stud II 11, the die adjusting stud III 22 and the die adjusting stud IV 19 to synchronously run, the die is preliminarily fixed, at the moment, the pin shaft connecting the driving gear III 113 and the mandrel 114 is taken out, the driving gear III 113 idles, the rotation of the driving gear I111 cannot be influenced by the rotation of the first gear 18, the die adjusting stud I16 cannot be influenced, the gap of the die adjusting stud I16 corresponding to the pull rod 3 cannot be influenced, and finally the cable of the cable car passes through the gap formed in the step 2;

example two:

II when needs normally work, during crank connecting rod structure locking mould, adjust the size of clamping force through transferring the mould mechanism, its actual clamping force depends on the elastic deformation of four pull rods when the high pressure mode locking. When adjusting the mould, the motor speed reducer drives the chain to drive the four mould adjusting nuts arranged at the tail ends of the four pull rods to rotate, drives the rear seat to move back and forth, and adjusts the distance between the movable mould plate and the fixed mould plate, thereby controlling the elastic deformation of the pull rods and achieving the purpose of controlling the mould locking force. When the mold clamping force is insufficient, the mold is separated from the seam, and plastic overflow and leakage occur. The die is deformed if the die is too large, and the product generates internal stress and unnecessary energy consumption, so that the service life of equipment is shortened, and the front and rear die adjusting mechanisms are required to adjust; after the hoisting is finished, resetting the die adjusting stud I16 in the first embodiment, and adjusting the front and rear die adjusting mechanism specifically comprises the following steps:

1. inserting a pin shaft of the drawing rod 3 between the movable template 2 and the tail plate 4 by using a tool so as to integrate the drawing rod 3 into a whole; inserting a pin shaft for connecting the driving gear III 113 with the mandrel 114; taking out the pin shaft connecting the driving gear II 112 and the mandrel 114;

2. starting the synchronous motor 21, wherein the synchronous motor 21 drives the gear ring 20 to rotate, and further drives the first gear 18 and the driven gear I115 to synchronously move; the first gear 18 drives the die adjusting stud II 11, the die adjusting stud III 22 and the die adjusting stud IV 19 to synchronously run, and at the moment, the driven gear I115 drives the driving gear III 113 and the driving gear I111 to rotate through the driven gear II 116 and the chain 14, so that the switching between a die adjusting state and a hoisting state is realized;

3. at the moment, the driving gear III 113 and the driven gear II 116 are arranged in an equal diameter mode, and the driving gear I111 and the first gear 18 are arranged in an equal diameter mode, so that synchronous adjustment of the die adjusting stud I16, the die adjusting stud II 11, the die adjusting stud III 22 and the die adjusting stud IV 19 is guaranteed;

4. simultaneously in order to increase the degree of accuracy of transferring the mould, adjust back mould transfer mould mechanism 6 cooperation front mould transfer mould mechanism, adjust the front nut 119 at template four corners, fasten front nut clamp plate 120 again after the adjustment is accomplished, behind the fastening screw, guarantee not hard up.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a mould mode adjustment mechanism around injection molding machine which characterized in that: comprises a front mold adjusting mechanism arranged on the end surface of a mold adjusting plate (1) of the injection molding machine and a rear mold adjusting mechanism (6) arranged at the bottom of a tail plate (4) of the injection molding machine;

the front mold adjusting mechanism comprises synchronous motors (21), mold adjusting studs (5) which are screwed on four end pins of the mold adjusting plate (1) and gear rings (20) which are arranged on the end face of the mold adjusting plate (1) of the injection molding machine and can circumferentially run along the axial direction of the mold adjusting plate (1), the synchronous motors (21) are symmetrically arranged at the upper end and the lower end of each gear ring (20), and output shafts of the synchronous motors (21) are connected with the gear rings (20) in a meshing manner; the die adjusting stud (5) is matched with a comb-shaped groove arranged on the die adjusting plate (1), and the die adjusting stud (5) is arranged at the end part of the drawing rod (3);

the die adjusting studs (5) are symmetrically arranged on the outer sides of four end feet of the gear ring (20) and comprise a die adjusting stud I (16), a die adjusting stud II (11), a die adjusting stud III (22) and a die adjusting stud IV (19), a first gear (18) is arranged on the outer side of the gear ring (20), and the gear ring (20) is directly connected with the die adjusting stud II (11), the die adjusting stud III (22) and the die adjusting stud IV (19) in a meshing mode through the first gear (18);

the die adjusting stud I (16) is provided with a gear assembly I (15) in a meshing mode, the gear assembly I (15) is provided with a gear assembly II (17) and a gear assembly III (13) through a chain (14), and the gear assembly II (17) is connected with the gear ring (20) in a meshing mode; a drawing rod (3) connected with the other end of the mold adjusting stud I (16) is arranged into a two-end structure and is fixedly connected through a pin shaft; the gear assembly III (13) is provided with a drawing motor (12) in a meshing mode.

2. The front and rear mold adjusting mechanism of an injection molding machine according to claim 1, wherein the gear assembly i (15) comprises a spindle (114), and a driving gear i (111), a driving gear ii (112) and a driving gear iii (113) which are coaxially arranged with the spindle (114), the driving gear i (111) and the first gear (18) are arranged in an equal diameter manner, the driving gear ii (112) and the driving gear iii (113) are both detachably connected with the spindle (114) through a pin shaft, and the driving gear i (111) is fixedly connected with the spindle (114).

3. The front and rear mold adjusting mechanism of an injection molding machine according to claim 2, wherein the gear assembly ii (17) comprises a spindle (114) and a driven gear i (115) and a driven gear ii (116) coaxially arranged with the spindle (114); the driving gear III (113) and the driven gear II (116) are arranged in an equal-diameter mode, and the gear assembly III (13) comprises a spindle (114), and a driven gear III (117) and a driven gear IV (118) which are arranged coaxially with the spindle (114).

4. The front and rear mold adjusting mechanism of the injection molding machine according to claim 3, characterized in that a driving gear I (111) of the gear assembly I (15) is engaged with a mold adjusting stud I (16), and a driving gear II (112) is engaged with a driven gear II (116) through a chain (14); the driving gear III (113) is matched with the driven gear IV (118) through a chain (14).

5. The front and rear mold adjusting mechanism of an injection molding machine according to claim 4, wherein the driven gear I (115) is engaged with the ring gear (20) in a meshing manner; the driven gear III (117) is matched with a gear of an output shaft of the drawing motor (12) in a meshing mode;

the first gear (18), the driving gear I (111), the driven gear I (115) and the driven gear III (117) are connected to the adjusting plate (1) through a spindle (114) arranged at the central part.

6. The front and rear mold adjusting mechanism of an injection molding machine according to claim 5, characterized in that the ends of the spindles (114) of the gear assembly I (15), the gear assembly II (17) and the gear assembly III (13) are provided with brackets fixed with the mold adjusting plate (1) in a rotary connection manner.

7. The front and rear mold adjusting mechanism of the injection molding machine according to claim 2, characterized in that the rear mold adjusting mechanism (6) comprises a front nut pressing plate (119) and a front nut (120) arranged at four corners of the tail plate (4), and the front nut pressing plate (119) is adjusted and locked with the tail plate (4) through the front nut (120).

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