CN214398861U

CN214398861U - Multifunctional clamping jaw for assembling injection molding machine

Info

Publication number: CN214398861U
Application number: CN202120341529.5U
Authority: CN
Inventors: 林超; 霍徐鼎; 张志峰; 孙力; 朱凯盛; 张利伟
Original assignee: Haitian Plastics Machinery Group
Current assignee: Haitian Plastics Machinery Group
Priority date: 2021-02-06
Filing date: 2021-02-06
Publication date: 2021-10-15
Anticipated expiration: 2031-02-06

Abstract

The utility model provides a multifunctional clamping jaw for injection molding machine assembly, belonging to the technical field of injection molding machine assembly, comprising a bracket; the pull rod clamping assembly comprises two lower clamping blocks arranged on the front side of the bracket, the two lower clamping blocks are positioned at the same horizontal height, each lower clamping block is correspondingly provided with a clamping cylinder connected with the bracket, the swing arm of the clamping cylinder is connected with an upper clamping block, and the clamping cylinder can drive the upper clamping block to swing forwards to a position right above the lower clamping block; screw clamping component. The utility model has the advantages of simple structure and low cost.

Description

Multifunctional clamping jaw for assembling injection molding machine

Technical Field

The utility model belongs to the technical field of the injection molding machine assembly, a multi-functional clamping jaw for injection molding machine assembly is related to.

Background

The conventional assembly process of the mold closing parts of an injection molding machine is as follows: 1) a worker lifts the tail plate to a fixed position by using tools such as a travelling crane, then lifts the middle plate and the head plate to positions corresponding to the tail plate respectively, and then fixes the head plate, the middle plate and the tail plate; 2) hoisting a pull rod by using a travelling crane, cleaning the pull rod, smearing lubricating oil, manually passing the pull rod through pull rod holes of a tail plate, a middle plate and a head plate in sequence and slowly under the assistance of the travelling crane, wherein in the process of inserting, because the hole positions of the pull rod holes in the head plate, the middle plate and the tail plate, which are opposite in position, are possibly not concentric, the positions of three templates need to be finely adjusted continuously in the manual punching process, and meanwhile, in the process of punching, a plurality of assembling workers are required to cooperate and cooperate, the end part of the pull rod is continuously knocked by a copper rod so as to provide power for punching of the pull rod until the punching of the pull rod is completed; 3) repeating the step 2 until all four pull rods penetrate into pull rod holes corresponding to the three templates; 4) manually selecting a die adjusting nut on the threaded section of the pull rod; 5) then all pack into the connecting rod on medium plate and tailboard to with the lock shaft hole alignment of connecting rod, then the rethread strikes the junction of inserting the lock axle in the lock shaft hole. The assembly of the traditional injection molding machine mold closing mechanism is basically completed manually, the labor intensity of workers is high, and the assembly efficiency is low.

The applicant provides an integrated large-scale injection molding machine assembly machine, which is under the application number of 201911417261.2 and comprises a positioning platform, a pull rod serial installation device, a die adjusting nut automatic screwing device, a connecting rod lock shaft installation device and a control device.

However, in the injection molding machine assembly all-in-one machine, the mechanism for realizing the penetration and installation of the pull rod and the automatic rotation of the die adjusting nut is complex, the installation and debugging of the equipment are complex, and the overall cost is high.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a simple structure and low-cost a multi-functional clamping jaw for injection molding machine assembly.

The purpose of the utility model can be realized by the following technical proposal: a multi-function clamp jaw for use in an injection molding machine assembly, comprising:

a support;

the pull rod clamping assembly comprises two lower clamping blocks arranged on the front side of the bracket, the two lower clamping blocks are positioned at the same horizontal height, each lower clamping block is correspondingly provided with a clamping cylinder connected with the bracket, the swing arm of the clamping cylinder is connected with an upper clamping block, and the clamping cylinder can drive the upper clamping block to swing forwards to a position right above the lower clamping block;

screw centre gripping subassembly, it includes the clamping jaw casing, the locking cylinder, drive block and two crank clamping jaws, the clamping jaw casing links to each other with the support and is located the below of clamp block down, the locking cylinder links to each other with the clamping jaw casing, the drive block links to each other and can slides from top to bottom for the clamping jaw casing with the locking cylinder, both sides around the drive block are located to two crank clamping jaws and divide, the middle part of every crank clamping jaw is articulated with the clamping jaw casing, crank clamping jaw upper end links to each other with the drive block, when the locking cylinder drives the drive block and slides from top to bottom, drive two crank clamping jaws and open and shut relatively.

As a further improvement of the utility model, a V-shaped notch is arranged on the top surface of the lower clamping block.

As a further improvement, the clamping jaw shell is arranged at the left end or the right end of the support, and the two lower clamping blocks are symmetrically arranged at the left end and the right end of the support.

As a further improvement of the utility model, the swing angle of the upper clamping block is between 0 degree and 135 degrees.

As the utility model discloses a further improvement, nut centre gripping subassembly is still including installing the pretension motor on the drive block, and pretension wheel is installed to pretension motor output, and pretension wheel is located between two crank clamping jaws, and the leading wheel is installed to every crank clamping jaw lower extreme, drives two crank clamping jaws closed relatively when the drive block slides down, and two leading wheels press from both sides with the pretension wheel cooperation and press from both sides tight mode screw of transferring, and can drive when pretension wheel and transfer mode screw butt and transfer the mode screw rotation.

As a further improvement, the driving block both sides are equipped with the inclined plane, and every crank clamping jaw upper end articulates there is the gyro wheel that slides, and the gyro wheel that slides offsets with the inclined plane of driving block.

As a further improvement of the utility model, the hinged position of the crank clamping jaw and the clamping jaw shell is provided with a reset spring.

As a further improvement of the utility model, the lower half part of the crank clamping jaw is arranged in a V shape.

As a further improvement, the periphery of the pre-tightening wheel is provided with a friction surface, the pre-tightening wheel drives the die adjusting nut to rotate through friction force, or the pre-tightening wheel is engaged with the gear between the die adjusting nut.

As a further improvement of the present invention, the pre-tightening wheel is made of an elastic material.

Based on the technical scheme, the embodiment of the utility model provides a can produce following technological effect at least:

1. when the multifunctional clamping jaw is arranged at the tail end of the mechanical arm through the bracket, the multifunctional clamping jaw can reach different stations through the movement of the mechanical arm. The multifunctional clamping jaw can move to a preset placing position of the pull rod, then move to a pull rod string installing position after clamping the pull rod through the pull rod clamping assembly, and string install the pull rod to the template, then loosen the pull rod, move to a preset placing position of the die adjusting nut, and then move to one end of the pull rod after clamping the die adjusting nut through the nut clamping assembly. The multifunctional clamping jaw can be matched with the mechanical arm to simultaneously realize the assembly of the pull rod and the die adjusting nut, and is ingenious in design, simple in structure, convenient to install and debug and low in cost.

2. Through set up V-arrangement breach on the clamp splice down, can realize the automatic positioning of pull rod, guarantee the centre gripping effect of pull rod centre gripping subassembly.

3. The locking cylinder during operation, accessible drive block drives the crank clamping jaw and opens and shuts relatively to automatically, snatch the accent mould screw on the preset position, two crank clamping jaws clamp the back of transferring the mould screw, the tight wheel of pretension and two leading wheels cooperation clamp are transferred the mould screw, will transfer the mould screw transport to waiting to install the position after, pretension motor drives the tight wheel of pretension and rotate, rotate with driving the accent mould screw, and then realize transferring the automatic twist of mould screw, make the function of this multi-functional clamping jaw more comprehensive. In addition, the pre-tightening wheel and the two guide wheels can support the die adjusting nut in 3 directions, so that the die adjusting nut is stable and reliable in clamping.

Drawings

Fig. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a usage status diagram of a preferred embodiment of the present invention.

Figure 4 is a perspective view of the nut clamping assembly.

Fig. 5 is an internal structural view of the nut holding assembly.

Figure 6 is a perspective view of the nut holding assembly from another angle.

In the figure, 10, the stent; 20. a tie rod clamping assembly; 21. a lower clamping block; 21a, a V-shaped notch; 22. an upper clamping block; 23. a clamping cylinder; 30. a nut clamping assembly; 40. a pull rod; 50. adjusting a die nut; 100. a jaw housing; 110. a guide groove; 120. a sliding notch; 130. swinging the notch; 200. a locking cylinder; 300. a drive block; 310. a bevel; 320. a slide pin; 400. a crank jaw; 410. a guide wheel; 420. sliding the roller; 430. a return spring; 500. a pre-tightening mechanism; 510. pre-tightening the motor; 520. and (4) pre-tightening the wheels.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 3, the multifunctional clamping jaw for assembling the injection molding machine comprises a bracket 10, a pull rod clamping assembly 20 and a nut clamping assembly 30.

The pull rod clamping assembly 20 comprises two lower clamping blocks 21 arranged on the front side of the support 10, the two lower clamping blocks 21 are located at the same horizontal height, each lower clamping block 21 is correspondingly provided with a clamping cylinder 23 connected with the support 10, the clamping cylinder 23 is located on the rear side of the support 10, the swing arm of the clamping cylinder 23 is connected with an upper clamping block 22, and the clamping cylinder 23 can drive the upper clamping block 22 to swing forwards to the position right above the lower clamping block 21 so as to clamp the pull rod 40.

As shown in fig. 3-6, the nut-gripping assembly 30 includes a jaw housing 100, a lock cylinder 200, a drive block 300, two crank jaws 400, and a pretensioning mechanism 500.

The locking cylinder 200 is installed above the clamping jaw housing 100, the driving block 300 is upwards embedded into the clamping jaw housing 100 and connected with the locking cylinder 200, the locking cylinder 200 can drive the driving block 300 to slide up and down along the clamping jaw housing 100, the two crank clamping jaws 400 are upwards embedded into the clamping jaw housing 100 and respectively arranged at two sides of the driving block 300, the middle part of each crank clamping jaw 400 is hinged with the clamping jaw housing 100, the upper ends of the crank clamping jaws 400 are connected with the driving block 300, the lower ends of the crank clamping jaws 400 are provided with guide wheels 410, the pre-tightening mechanism 500 comprises pre-tightening motors 510 connected with the driving block 300, the output ends of the pre-tightening motors 510 are provided with pre-tightening wheels 520, and the pre-tightening wheels 520 are located between the two crank clamping jaws 400.

When the driving block 300 slides downwards, the two crank clamping jaws 400 are driven to be relatively closed, the two guide wheels 410 and the pre-tightening wheel 520 are matched to clamp the die adjusting nut 50, and the die adjusting nut 50 can be driven to rotate when the pre-tightening wheel 520 is abutted against the die adjusting nut 50.

That is to say, when the locking cylinder 200 works, the driving block 300 can drive the crank clamping jaws 400 to open and close relatively to automatically capture the die adjusting nut 50 at the preset position, after the two crank clamping jaws 400 clamp the die adjusting nut 50, the pre-tightening wheel 520 and the two guide wheels 410 are matched to clamp the die adjusting nut 50, and after the die adjusting nut 50 is transported to the position to be installed, the pre-tightening motor 510 drives the pre-tightening wheel 520 to rotate so as to drive the die adjusting nut 50 to rotate, thereby realizing the automatic screwing of the die adjusting nut 50. In addition, the pre-tightening wheel 520 and the two guide wheels 410 can support the die adjusting nut 50 in 3 directions, so that the die adjusting nut 50 is stably and reliably clamped.

As shown in fig. 3, the multifunctional clamping jaw can reach different stations through the movement of the manipulator when being arranged at the tail end of the manipulator through the bracket 10. The multifunctional clamping jaw can move to a preset placing position of the pull rod 40, then the pull rod 40 is clamped by the pull rod clamping assembly 20, the multifunctional clamping jaw moves to a serial installing position of the pull rod 40 and serially installs the pull rod 40 to a template, then the pull rod 40 is loosened and moves to a preset placing position of the die adjusting nut 50, then the multifunctional clamping jaw moves to one end of the pull rod 40 after clamping the die adjusting nut 50 by the nut clamping assembly 30 and automatically screws in to complete the assembling of the die adjusting nut 50.

The multifunctional clamping jaw can be matched with a mechanical hand to simultaneously realize the assembly of the pull rod 40 and the die adjusting nut 50, and has the advantages of ingenious design, simple structure, convenience in installation and debugging and lower cost.

It should be mentioned that the V-shaped notch 21A is recessed from the top surface of the lower clamping block 21, so that the lower clamping block 21 can automatically position the pull rod 40, thereby ensuring the clamping effect of the pull rod clamping assembly 20 and being suitable for pull rods 40 with different diameters. The clamping cylinder 23 may be of the type CKZ3T, which via a swing arm can swing the upper clamping block 22 between 0 ° and 135 ° to clamp or release the drawbar 40.

In order to ensure that the multifunctional clamping jaw has sufficient transverse moving space when the pull rod 40 is assembled in series and the die adjusting nut 50 is assembled, the two lower clamping blocks 21 are symmetrically arranged at the left end and the right end of the support 10, and the clamping jaw shell 100 is arranged at the left end or the right end of the support 10, so that collision can be effectively avoided.

As shown in fig. 4 to 6, in the nut clamping assembly 30, two sides of the driving block 300 are provided with inclined planes 310, the upper end of each crank clamping jaw 400 is hinged with a sliding roller 420, and the sliding roller 420 abuts against the inclined plane 310 of the driving block 300, so that when the driving block 300 moves up and down, the two crank clamping jaws 400 can be driven to open and close relatively. The transmission structure between the driving block 300 and the crank clamping jaw 400 is simple and reliable, and can provide larger clamping force, and the clamping effect of the die adjusting nut 50 is ideal.

It should be noted that a return spring 430 is disposed at the hinge portion of each crank clamping jaw 400 and the clamping jaw housing 100, so that the sliding roller 420 is always attached to the inclined plane 310 of the driving block 300, and after the driving block 300 is reset, the two crank clamping jaws 400 can be automatically opened by a sufficient angle for the next clamping.

The lower half parts of the crank clamping jaws 400 are arranged in a V shape, so that the two crank clamping jaws 400 can play a role in automatic centering when clamping the die adjusting nut 50, and the clamping effect is better.

In order to enable the pre-tightening wheel 520 to drive the die adjusting nut 50 to rotate, a gear meshing structure can be adopted between the pre-tightening wheel 520 and the die adjusting nut 50, and the specific structure can refer to the background technology.

As another preferred scheme, the periphery of the pre-tightening wheel 520 of the nut clamping assembly 30 is provided with a friction surface, and when the pre-tightening wheel 520 is matched with the two guide wheels 410 to clamp the die adjusting nut 50, the pre-tightening wheel 520 can drive the die adjusting nut 50 to rotate through friction force, so that the nut clamping assembly 30 can be applied to die adjusting nuts 50 with different diameters, and the application range is wider.

The pre-tightening wheel 520 is preferably made of an elastic material such as rubber, polyurethane, etc., so that the nut clamping assembly 30 can clamp the die nut 50 more firmly, and the pre-tightening wheel 520 can provide a buffer effect during the clamping process.

It is worth mentioning that the pretension wheel is located in the same vertical plane as the guide wheels 410 of the two crank jaws 400 to ensure the clamping effect.

The guide groove 110 is formed in one side of the clamping jaw housing 100, the driving block 300 is fixedly provided with the sliding pin 320 matched with the guide groove 110, the sliding pin 320 can slide up and down along the guide groove 110, the guide groove 110 can provide a guide effect for the sliding of the driving block 300, and the driving block 300 can slide more smoothly. One side of the clamping jaw housing 100 is further provided with a sliding notch 120 for the pre-tightening motor 510 to slide up and down.

Swing notches 130 for the crank clamping jaw 400 to swing are further formed in the two sides of the clamping jaw housing 100, so that the whole structure is more compact, and the assembly of the crank clamping jaw 400 is facilitated.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A multi-functional clamping jaw for assembly of an injection molding machine, comprising:

a support;

the pull rod clamping assembly comprises two lower clamping blocks arranged on the front side of the bracket, the two lower clamping blocks are positioned at the same horizontal height, each lower clamping block is correspondingly provided with a clamping cylinder connected with the bracket, the clamping cylinder is positioned on the rear side of the bracket, the swing arm of the clamping cylinder is connected with an upper clamping block, and the clamping cylinder can drive the upper clamping block to swing forwards to a position right above the lower clamping block;

2. A multi-functional clamping jaw for assembly of an injection molding machine according to claim 1, wherein: and a V-shaped notch is formed in the bottom surface of the lower clamping block.

3. A multi-functional clamping jaw for assembly of an injection molding machine according to claim 1, wherein: the two lower clamping blocks are symmetrically arranged at the left end and the right end of the support, and the clamping jaw shell is arranged at the left end or the right end of the support.

4. A multi-functional clamping jaw for assembly of an injection molding machine according to claim 1, wherein: the swing angle of the upper clamping block is between 0 DEG and 135 deg.

5. A multi-functional clamping jaw for assembly of an injection molding machine according to claim 1, wherein: the nut clamping assembly further comprises a pre-tightening motor arranged on the driving block, a pre-tightening wheel is arranged at the output end of the pre-tightening motor, the pre-tightening wheel is located between the two crank clamping jaws, a guide wheel is arranged at the lower end of each crank clamping jaw, the driving block drives the two crank clamping jaws to be relatively closed when sliding downwards, the two guide wheels and the pre-tightening wheel are matched to clamp and adjust a mold nut, and the pre-tightening wheel and the mold nut can be driven to rotate when abutting against each other.

6. A multi-functional clamping jaw for assembly of an injection molding machine according to claim 5, wherein: inclined planes are arranged on two sides of the driving block, a sliding roller is hinged to the upper end of each crank clamping jaw, and the sliding roller is abutted to the inclined planes of the driving block.

7. A multi-functional clamping jaw for assembly of an injection molding machine according to claim 6, wherein: and a return spring is arranged at the hinged part of the crank clamping jaw and the clamping jaw shell.

8. A multi-functional clamping jaw for assembly of an injection molding machine according to claim 5, wherein: the lower half part of the crank clamping jaw is arranged in a V shape.

9. A multi-functional clamping jaw for assembly of an injection molding machine according to claim 5, wherein: the periphery of the pre-tightening wheel is provided with a friction surface, and the pre-tightening wheel drives the die adjusting nut to rotate through friction force, or the pre-tightening wheel is meshed with the die adjusting nut through a gear.

10. A multi-functional clamping jaw for an injection molding machine assembly according to claim 9, wherein: the pre-tightening wheel is made of an elastic material.