CN210501365U

CN210501365U - Single servo drive mold opening and closing device of bottle blowing machine

Info

Publication number: CN210501365U
Application number: CN201920434290.9U
Authority: CN
Inventors: 李斌; 张元科; 许跳强; 游景
Original assignee: Quinko Fujian Machinery Industrial Co ltd
Current assignee: Quinko Fujian Machinery Industrial Co ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-05-12
Anticipated expiration: 2029-04-02

Abstract

The utility model discloses a single servo drive of bottle blowing machine mould device that opens and shuts, including first template seat (1), fix second template seat (2) in first template seat (1) below, establish and open and shut group (3) at the inside template of first template seat (1), establish power drive group (5) in second template seat (2) bottom, the template is opened and shut and is organized (3) and is organized (5) through transmission group (4) with power drive and be connected. The utility model discloses use a servo motor drive die that opens and shuts, practice thrift the cost greatly, reduced the fault incidence, improved servo motor's intermittent type nature motion for the motion of continuation, promoted mechanical stability.

Description

Single servo drive mold opening and closing device of bottle blowing machine

Technical Field

The utility model relates to a bottle blowing machine equipment technical field, concretely relates to single servo drive die opening and closing device of bottle blowing machine.

Background

The bottle blowing machine is a device for manufacturing plastic particles into hollow containers through a blow molding process, and the common machine types at present comprise a hollow extrusion blowing machine which uses PP and PE for one-step molding, an injection stretch blow bottle blowing machine which uses PET, PC or PP for two-step molding, and a newly developed multilayer hollow extrusion blowing and stretch blow molding.

The common bottle blowing method is to form in two corresponding molds, and the molds at two ends are opened separately when the bottle is discharged. Two servo motors are usually used for driving the dies at the two ends to open and close the dies, and a crank is additionally arranged on the die at one end to be connected with the bottom die so as to realize linkage of the bottom die and the opening and closing dies. When pressure exists in the bottle mold, the bottom mold jacks the mold and the rear connecting rod.

However, in the bottle blowing machine using such a driving method, the two servo motors are usually intermittently rotated back and forth, and have a great interruption. Impact force is generated during the process of starting and stopping the servo motor for many times, so that the mechanical stability is deteriorated, and certain energy loss is caused.

Disclosure of Invention

In order to solve the problem, the utility model provides a single servo drive die opening and closing device of bottle blowing machine can only drive the die opening and closing with a servo motor, and changes servo motor's intermittent type nature motion, promotes mechanical stability. The utility model adopts the following technical scheme:

a single servo drive mold opening and closing device of a bottle blowing machine comprises a first mold plate seat, a second mold plate seat fixed below the first mold plate seat, a mold plate opening and closing group arranged inside the first mold plate seat, and a power drive group arranged at the bottom of the second mold plate seat, wherein the mold plate opening and closing group is connected with the power drive group through a transmission group. The power driving set comprises a servo motor for driving the transmission set to operate. The transmission set comprises a gear assembly connected with the power driving set and a cam member fixed above the gear assembly, the cam member is arranged on the side wall of the second template seat in a sliding mode, the cam member is connected with one end of the connecting rod assembly and used for driving the connecting rod assembly to move, and the other end of the connecting rod assembly is connected with the template opening and closing set and used for controlling opening and closing of the inner template. And a slide rail is fixed on the side wall of the second template base along the vertical direction, a slide block is installed on the slide rail, and the cam component is fixed on the slide block. And the single servo motor continuously rotates to drive the cam component to slide up and down along the slide rail to drive the connecting rod component to move up and down, so that the opening and closing of the inner template are controlled.

Preferably, the power driving group further comprises a speed reducer connected with the output end of the servo motor and located at the top end of the servo motor, and an output shaft of the speed reducer penetrates through a bottom plate of the second template base to be connected with the transmission group.

Preferably, the gear assembly comprises a first gear connected with the output shaft of the speed reducer, and a second gear meshed with the first gear and positioned on one side of the first gear, and the second gear is fixedly connected with the cam member. The center of the cam member is positioned right above the second gear, the cam member and the second gear are fixedly connected through a bolt, and the rotation of the second gear drives the cam member to move.

Preferably, the diameter of the first gear is smaller than the diameter of the second gear. The first gear is connected with an output shaft of the speed reducer, the required torque is small, and the pinion drives the bull gear to rotate, so that the output force can be increased.

Preferably, the cam member comprises a cam fixed above the second gear, and a cam follower part arranged at the circumferential position of the cam, the cam is clamped in the cam follower part, and the cam follower part is arranged on the side wall of the second template seat in a sliding way through the fixing frame. The fixed frame is fixedly connected with the sliding block, and the cam rotates to drive the cam follower part and the fixed frame to slide on the sliding rail.

Preferably, the cam is disc-shaped, and comprises a first part positioned at a low position in space, a second part and a third part which are respectively arranged at two sides of the first part and are integrally formed with the first part; the first portion is the planar structure, and second portion and third portion are the curved surface structure, and the one side that first portion was kept away from in second portion and third portion is located the space high position. The cam is of an integrally formed disc-shaped structure and is in a concave shape, the first part is located at the center, and the second part and the third part are symmetrical along the center line of the first part. Spatially high and spatially low refer to high and low in spatial position.

Preferably, the cam follower part comprises a first cam follower fixed on the upper part of the fixing frame and a second cam follower fixed on the lower part of the fixing frame, a gap is arranged between the first cam follower and the second cam follower, and the cam is clamped in the gap. The first cam follower and the second cam follower slide on the cam edge and limit the position of the cam.

Preferably, a mandrel connected with the connecting rod assembly is arranged at the top of the fixed frame, and the position of the mandrel is higher than the bottom plate of the first template seat. The bottom plate of the first template seat is provided with a through hole corresponding to the position of the fixing frame, and the upper part of the fixing frame penetrates through the through hole.

Preferably, the connecting rod assembly comprises at least one first connecting rod, at least one second connecting rod and at least one third connecting rod, one end of the first connecting rod is connected with the mandrel, the other end of the first connecting rod is connected with one end of the second connecting rod and one end of the third connecting rod through pin shafts, the second connecting rod and the third connecting rod are located on the same straight line, the first connecting rod is perpendicular to the second connecting rod and the third connecting rod, the other end of the second connecting rod is connected with a connecting rod fixing plate fixed on the side wall of the first template seat through pin shafts, and the other end of the third connecting rod is connected with the template opening and closing group. The first connecting rod moves downwards to drive the second connecting rod and the third connecting rod to move downwards, and the mold is opened and closed by the mold plate fixedly connected with the third connecting rod; the first connecting rod moves upwards to drive the second connecting rod and the third connecting rod to move upwards, and the template opening and closing combined die is fixedly connected with the third connecting rod.

Preferably, the template opening and closing group comprises two inner templates which are respectively connected with the forming connecting rod through pin shafts, a mold is fixed on one side of each inner template, which is far away from the connecting rod assembly, the lower part of each inner template is fixedly connected with a sliding block, a linear sliding rail is arranged on a bottom plate of the first template seat, and the sliding blocks are installed on the linear sliding rails. When the third connecting rod moves downwards, a force in the horizontal direction is applied to the inner template, and the inner template slides on the linear sliding rail under the action of the force, so that the inner template is opened.

The utility model discloses after starting, servo motor drives first gear rotatory, rotates thereupon with first gear engagement's second gear, drives the cam rotation of fixing on it. The first portion, the second portion and the third portion of the cam sequentially pass through the cam follower component due to rotation of the cam, the cam follower component is driven to reciprocate up and down due to the space height difference, and the fixing frame also reciprocates up and down on the side wall of the second template base. The movement of the fixing frame drives the first connecting rod, the second connecting rod and the third connecting rod to move up and down in sequence, and the third connecting rod drives the inner template to reciprocate along the linear sliding rail, so that the opening and closing of the die are realized.

The beneficial effects of the utility model reside in that:

(1) two servo motors are used for driving the opening and closing die to be improved into one servo motor, so that the energy is saved, the environment is protected, the production cost is reduced, and the complexity and the fault occurrence rate of a mechanical driving device circuit are reduced.

(2) The cam structure is utilized to drive the connecting rod to move, so that the servo motor is improved from reciprocating intermittent rotation to continuous circular motion, the impact force caused by starting and suspending of the servo motor is avoided, the mechanical stability is improved, and the service life of the machine is prolonged.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the entire structure of embodiment 1;

FIG. 3 is a front view of the present invention;

fig. 4 is a partial structural schematic diagram of the present invention;

fig. 5 is a schematic view of the cam structure of the present invention;

FIG. 6 is a structural component view of the transmission set;

fig. 7 is a schematic view of the entire structure of embodiment 2.

Reference numerals:

1. a first template base; 2. a second stencil holder; 3. the template opening and closing group; 31. an inner template; 32. a mold; 33. a slider; 34. a linear slide rail; 4. a transmission set; 41. a gear assembly; 411. a first gear; 412. a second gear; 42. a cam member; 421. a cam; 4211. a first part; 4212. a second section; 4213. a third section; 422. a cam follower member; 4221. a first cam follower; 4222. a second cam follower; 423. a fixed mount; 4231. a mandrel; 43. a connecting rod assembly; 431. a first link; 432. a second link; 433. a third link; 434. a connecting rod fixing plate; 5. a power drive group; 51. a servo motor; 52. a reduction gearbox.

Detailed Description

The technical solution of the present invention will be described in detail and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the present invention are shown.

Example 1

As shown in fig. 2, embodiment 1 provides a single servo-driven mold opening and closing device of a bottle blowing machine, which includes a first mold base 1, a second mold base 2 fixed below the first mold base 1, a mold opening and closing set 3 disposed inside the first mold base 1, and a power driving set 5 disposed at the bottom of the second mold base 2, wherein the mold opening and closing set 3 is connected to the power driving set 5 through a transmission set 4.

The power driving set 5 comprises a servo motor 51 for driving the transmission set 4 to operate, and a speed reducer 52 connected with the output end of the servo motor 51 and located at the top end of the servo motor 51, wherein the output shaft of the speed reducer 52 passes through the bottom plate of the second template base 2 and is connected with the transmission set 4.

As shown in fig. 6, the transmission set 4 includes a gear assembly 41 connected to the power driving set 5, and a cam member 42 fixed above the gear assembly 41, the cam member 42 is slidably disposed on a sidewall of the second template base 2, the cam member 42 is connected to one end of the link assembly 43 for driving the link assembly 43 to move, and the other end of the link assembly 43 is connected to the template opening/closing set 3 for controlling opening/closing of the inner template 31.

As shown in fig. 3-4, the gear assembly 41 includes a first gear 411 connected to the output shaft of the speed reducer 52, and a second gear 412 engaged with the first gear 411 and located at one side thereof, wherein the diameter of the first gear 411 is smaller than that of the second gear 412, and the second gear 412 is fixedly connected to the cam member 42.

The cam member 42 includes a cam 421 fixed above the second gear 412, and two cam follower portions 422 symmetrically provided at both ends of the cam 421, and the cam 421 is engaged with the inside of the two cam follower portions 422. The two cam follower members 422 are slidably disposed on the left and right sidewalls of the second form base 2 through two fixing brackets 423, respectively.

As shown in fig. 5, the cam 421 has a disk shape, and includes a first portion 4211 located at a low position in space, and a second portion 4212 and a third portion 4213 provided on both sides of the first portion 4211 and formed integrally therewith. The first portion 4211 is a planar structure, the second portion 4212 and the third portion 4213 are curved structures, and one sides of the second portion 4212 and the third portion 4213 far away from the first portion 4211 are positioned at a high space position.

The cam follower member 422 includes a first cam follower 4221 fixed to an upper portion of the fixed frame 423 and a second cam follower 4222 fixed to a lower portion of the fixed frame 423, a gap is provided between the first cam follower 4221 and the second cam follower 4222, and the cam 421 is engaged in the gap. As shown in fig. 4, a spindle 4231 connected to the link assembly 43 is provided at the top of the fixing frame 423, and the spindle 4231 is positioned higher than the bottom plate of the first shoe 1.

The connecting rod assemblies 43 are two groups and are respectively connected with the template opening and closing group 3 and the mandrel 4231. Each set of linkage assemblies 43 includes a first link 431, two second links 432 and two third links 433. A second link 432 and a third link 433 constitute a new combination lever. Each group of connecting rod assemblies 43 comprises two combined rods arranged in parallel up and down, in the combined rods, one end of a second connecting rod 432 is connected with one end of a third connecting rod 433 through a pin shaft, the other end of the second connecting rod 432 is connected with a connecting rod fixing plate 434 fixed on the side wall of the first template base 1 through a pin shaft, and the other end of the third connecting rod 433 is connected with a template opening and closing group 3. In the lower combination rod, the joint of the second link 432 and the third link 433 is also connected to one end of the first link 431 by a pin, and the other end of the first link 431 is fixedly connected to the spindle 4231. The second connecting rod 432 and the third connecting rod 433 are located on the same straight line, and the first connecting rod 431 is perpendicular to the second connecting rod 432 and the third connecting rod 433.

The template opening and closing group 3 comprises two inner templates 31 respectively connected with the third connecting rod 433 through a pin shaft, a mold 32 is fixed on one side of each inner template 31 far away from the connecting rod assembly 43, the lower portion of each inner template 31 is fixedly connected with a sliding block 33, a linear sliding rail 34 is arranged on a bottom plate of the first template base 1, and the sliding blocks 33 are installed on the linear sliding rails 34.

The utility model discloses after the start-up, servo motor 51 drives first gear 411 rotatory, rotates with first gear 411 meshed second gear 412 thereupon, drives the cam 421 rotation of fixing on it. The rotation of the cam 421 causes the first portion 4211, the second portion 4212 and the third portion 4213 to sequentially pass through the cam follower member 422, and the cam follower member 422 is driven by the spatial height difference to reciprocate up and down, and the fixing frame 423 also reciprocates up and down on the side wall of the second platen base 2. The movement of the fixing frame 423 sequentially drives the first connecting rod 431, the second connecting rod 432 and the third connecting rod 433 to move up and down, and the third connecting rod 433 drives the inner mold plate 31 to reciprocate along the linear sliding rail 34, so that the opening and closing of the mold 32 are realized.

Example 2

As shown in fig. 7, the difference between the single servo mold opening and closing device of the bottle blowing machine provided in embodiment 2 and embodiment 1 is the structural design of the connecting rod assembly.

The connecting rod assemblies 43 are two groups and are respectively connected with the template opening and closing group 3 and the mandrel 4231. Each set of linkage assemblies 43 includes a first link 431, a second link 432 and a third link 433.

One end of the first connecting rod 431 is connected with the mandrel 4231, the other end of the first connecting rod 431 is connected with one end of the second connecting rod 432 and one end of the third connecting rod 433 through a pin shaft, the second connecting rod 432 and the third connecting rod 433 are positioned on the same straight line, the first connecting rod 431 is perpendicular to the second connecting rod 432 and the third connecting rod 433, the other end of the second connecting rod 432 is connected with a connecting rod fixing plate 434 fixed on the side wall of the first template base 1 through a pin shaft, and the other end of the third connecting rod 433 is connected with the template opening and closing group 3.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. A single servo drive mold opening and closing device of a bottle blowing machine comprises a first mold plate seat (1), a second mold plate seat (2) fixed below the first mold plate seat (1), a mold plate opening and closing group (3) arranged inside the first mold plate seat (1), and a power drive group (5) arranged at the bottom of the second mold plate seat (2), wherein the mold plate opening and closing group (3) is connected with the power drive group (5) through a transmission group (4),

the power driving set (5) comprises a servo motor (51) for driving the transmission set (4) to operate;

the transmission group (4) comprises a gear assembly (41) connected with the power driving group (5), and a cam member (42) above the gear assembly (41), the cam member (42) is slidably arranged on the side wall of the second template seat (2), the cam member (42) is connected with one end of a connecting rod assembly (43) and used for driving the connecting rod assembly (43) to move, and the other end of the connecting rod assembly (43) is connected with the template opening and closing group (3) and used for controlling the opening and closing of the inner template (31).

2. The single servo drive mold opening and closing device of the bottle blowing machine according to claim 1, wherein the power drive unit (5) further comprises a speed reducer (52) connected with the output end of the servo motor (51) and positioned at the top end of the servo motor (51), and the output shaft of the speed reducer (52) passes through the bottom plate of the second mold plate base (2) and is connected with the transmission unit (4).

3. The single servo drive mold opening and closing device of the bottle blowing machine according to claim 2, characterized in that the gear assembly (41) comprises a first gear (411) connected with an output shaft of the speed reducer (52), and a second gear (412) meshed with the first gear (411) and positioned on one side of the first gear, wherein the second gear (412) is fixedly connected with the cam member (42).

4. The single servo drive mold opening and closing device of a bottle blowing machine according to claim 3, characterized in that the diameter of the first gear (411) is smaller than the diameter of the second gear (412).

5. The single-servo driving mold opening and closing device of the bottle blowing machine according to claim 3, characterized in that the cam member (42) comprises a cam (421) fixed above the second gear (412) and a cam follower part (422) arranged at the circumferential position of the cam (421), the cam (421) is clamped inside the cam follower part (422), and the cam follower part (422) is slidably arranged on the side wall of the second mold plate seat (2) through a fixing frame (423).

6. The single servo drive mold opening and closing device of the bottle blowing machine according to claim 5, characterized in that the cam (421) is disk-shaped and comprises a first portion (4211) located at a low space, a second portion (4212) and a third portion (4213) which are respectively arranged at two sides of the first portion (4211) and are integrally formed with the first portion; the first portion (4211) is of a plane structure, the second portion (4212) and the third portion (4213) are of curved surface structures, and one sides, far away from the first portion (4211), of the second portion (4212) and the third portion (4213) are located at a high position in space.

7. The single-servo drive mold opening and closing device of the bottle blowing machine according to claim 5, wherein the cam follower member (422) comprises a first cam follower (4221) fixed on the upper part of the fixing frame (423) and a second cam follower (4222) fixed on the lower part of the fixing frame (423), a gap is arranged between the first cam follower (4221) and the second cam follower (4222), and the cam (421) is clamped in the gap.

8. The single servo drive mold opening and closing device of the bottle blowing machine according to claim 5, characterized in that a mandrel (4231) connected with the connecting rod assembly (43) is arranged at the top of the fixing frame (423), and the position of the mandrel (4231) is higher than the bottom plate of the first mold plate seat (1).

9. The single servo drive mold opening and closing device of the bottle blowing machine according to claim 8, the connecting rod assembly (43) comprises at least one first connecting rod (431), at least one second connecting rod (432) and at least one third connecting rod (433), one end of the first connecting rod (431) is connected with the mandrel (4231), the other end of the first connecting rod is connected with one end of the second connecting rod (432) and one end of the third connecting rod (433) through pin shafts, the second connecting rod (432) and the third connecting rod (433) are positioned on the same straight line, the first link (431) is perpendicular to the second link (432) and the third link (433), the other end of the second connecting rod (432) is connected with a connecting rod fixing plate (434) fixed on the side wall of the first template base (1) through a pin shaft, the other end of the third connecting rod (433) is connected with the template opening and closing group (3).

10. The single-servo driving mold opening and closing device of the bottle blowing machine according to claim 9, wherein the mold plate opening and closing set (3) comprises two inner mold plates (31) respectively connected with the third connecting rod (433) through pin shafts, a mold (32) is fixed on one side of the inner mold plate (31) far away from the connecting rod assembly (43), the lower portion of the inner mold plate (31) is fixedly connected with a sliding block (33), a linear sliding rail (34) is arranged on a bottom plate of the first mold plate seat (1), and the sliding block (33) is installed on the linear sliding rail (34).