CN112895290A

CN112895290A - Turntable supporting device

Info

Publication number: CN112895290A
Application number: CN202110032261.1A
Authority: CN
Inventors: 郑良; 胡斌; 段招浪; 经宏辉
Original assignee: Ningbo Zhafir Plastics Machinery Co ltd
Current assignee: Ningbo Zhafir Plastics Machinery Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-06-04

Abstract

The invention discloses a turntable supporting device, which comprises a supporting base, a supporting pressure plate, two T-shaped supporting slide blocks and two supporting rollers, wherein the front end of the supporting base is symmetrically provided with two grooves, the top of the supporting pressure plate is downwards symmetrically provided with two notches, the width of the notches is smaller than that of the grooves, the supporting pressure plate is fixed on the front end of the supporting base, the notches are communicated with the corresponding grooves to form T-shaped grooves, the rear parts of the T-shaped supporting slide blocks are tightly embedded in the T-shaped grooves, the supporting rollers are connected on the front parts of the T-shaped supporting slide blocks, the supporting rollers are positioned in front of the supporting pressure plate, adjusting screws vertically penetrate through the supporting pressure plate below the notches, the top parts of the adjusting screws are abutted against the bottom end surfaces of the rear parts of the T-shaped supporting slide blocks, the supporting base is fixed on a movable mould plate of an, the support roller and the T-shaped support sliding block are fixedly locked on the support base; its advantages are convenient regulation of position and high impact resistance.

Description

Turntable supporting device

Technical Field

The invention relates to a turntable supporting technology, in particular to a turntable supporting device for a turntable type multi-component injection molding machine.

Background

The rotating disc type multi-component injection molding machine comprises a movable template and a rotating disc arranged on the movable template, wherein the rotating disc is driven by a motor or a motor to rotate, and loads are loaded on the rotating disc, however, when the loads are heavier, the rotating disc can tilt downwards, namely, the upper part of the rotating disc tilts outwards and the lower part of the rotating disc sticks inwards, so that the rotating disc can rub against the movable template, the rotating disc and the movable template can be damaged, the rotating disc can not work normally, and finally the rotating disc type multi-component injection molding machine can not work normally.

In order to solve the above problems, a turntable support device has been introduced in a turntable type multi-component injection molding machine, and the turntable support device is used to ensure that the turntable can work normally even when a heavy load is loaded. The existing turntable supporting device comprises a T-shaped sliding plate and two supporting rollers, two installation shafts are arranged on the T-shaped sliding plate, and the supporting rollers are installed on the installation shafts through bearings. The method comprises the following steps of arranging 2-3T-shaped grooves below a rotating plate on a movable template, then arranging a rotating plate supporting device in each T-shaped groove, adjusting the position of a T-shaped sliding plate to enable a supporting roller to be in line contact with the rotating plate, and further achieving the purpose of supporting the rotating plate. However, such a turntable supporting device has the following problems: 1) because the two supporting rollers are arranged on the same T-shaped sliding plate, the positions of the two supporting rollers can be changed when the positions of the T-shaped sliding plate are adjusted, so that the two supporting rollers can be in line contact with the turntable, position adjustment is required for many times, and great difficulty is brought to adjustment; 2) the T-shaped sliding plate is positioned in the T-shaped groove, and the supporting roller needs to be in line contact with the turntable, so that the mounting force arm of the supporting roller is longer, and the impact resistance of the whole turntable supporting device is weak; 3) the T-shaped sliding plate is fixed in the T-shaped groove in a bolt connection mode, so that the situation of bolt loosening is easily caused, and the position of the supporting roller can deviate inevitably when the bolt loosens.

Disclosure of Invention

The invention aims to provide a turntable supporting device which is convenient to adjust the position and strong in shock resistance.

The technical scheme adopted by the invention for solving the technical problems is as follows: a turntable supporting device is characterized by comprising a supporting base, a supporting pressing plate, two T-shaped supporting sliding blocks and two supporting rollers, wherein two mutually independent grooves are symmetrically formed in the left and right of the front end of the supporting base, two mutually independent notches are symmetrically formed in the downward left and right of the top of the supporting pressing plate, the width of each notch is smaller than that of each groove, the supporting pressing plate is fixed at the front end of the supporting base, the notches are communicated with the corresponding grooves to form T-shaped grooves, the rear portions of the T-shaped supporting sliding blocks are tightly embedded into the T-shaped grooves, the supporting rollers are connected to the front portions of the T-shaped supporting sliding blocks in a rolling mode, the supporting rollers are located in front of the supporting pressing plate, and adjusting screws are vertically arranged below the notches on the supporting pressing plate in a penetrating mode, the top of the adjusting screw is abutted against the bottom end face of the rear part of the T-shaped supporting sliding block, the supporting base is fixed on a movable template of the injection molding machine, the supporting roller is in line contact with a turntable of the injection molding machine, and the supporting roller and the T-shaped supporting sliding block are fixedly locked on the supporting base.

The T-shaped supporting sliding block is composed of a T-shaped sliding part located at the rear part and a connecting shaft located at the front part, the T-shaped sliding part is tightly embedded into the T-shaped groove, and the connecting shaft is located in front of the supporting pressing plate. Because the support roller needs to be connected to the front part of the T-shaped support slider, the front part of the T-shaped support slider needs to be a shaft, namely a connecting shaft.

The front end surface of the transverse part of the T-shaped sliding part is tightly attached to the rear end surface of the supporting pressure plate, and the rear end surface of the transverse part of the T-shaped sliding part is tightly attached to the groove bottom of the groove. The transverse part of the T-shaped sliding part is clamped by the groove bottom of the groove and the rear end face of the supporting pressing plate, and the stability of the T-shaped supporting sliding block and the supporting roller is ensured.

The supporting roller is connected to the connecting shaft through a bearing, a clamp spring and a bearing retainer ring. The connection mode among the supporting roller, the bearing, the clamp spring, the bearing retainer ring and the connecting shaft adopts the prior art.

The T-shaped supporting sliding block is internally provided with an axial through hole along the central axis of the connecting shaft, the supporting base is provided with a threaded fixing hole at the position corresponding to the axial through hole, the single side of the axial through hole is larger than the threaded fixing hole by 1.5-2.5 mm, and the adjusting screw adjusts the T-shaped supporting sliding block to ensure that the supporting roller is in contact with the turntable line of the injection molding machine and then passes through the inner hole of the bearing retainer ring by utilizing a first inner hexagon screw, and the axial through hole is then in threaded connection with the threaded fixing hole to fixedly lock the supporting roller and the T-shaped supporting sliding block on the supporting base. Because the central axis of the axial through hole is not in the same straight line with the central axis of the threaded fixing hole after the position of the T-shaped supporting sliding block is finely adjusted, in order to fixedly lock the supporting roller and the T-shaped supporting sliding block on the supporting base, the aperture of the axial through hole is designed to be larger than that of the threaded fixing hole, through a large number of experiments, fine adjustment is performed after coarse adjustment, and the aperture of the axial through hole is designed to be larger than that of the threaded fixing hole by 3-5 mm enough.

The notch is aligned with the center of the groove.

The adjusting screw is a hexagon socket head cap end fastening screw, the supporting pressure plate is vertically provided with two adjusting screws in a penetrating manner below the notch, the adjusting screws are connected with hexagon nuts in a threaded manner, and the hexagon nuts are in contact with the bottom end face of the supporting pressure plate.

A gap exists between the supporting roller and the supporting pressing plate, so that the supporting roller and the supporting pressing plate are prevented from being damaged due to friction between the supporting roller and the supporting pressing plate.

The supporting base is fixed on a movable template of the injection molding machine through a second inner hexagon screw and an inner thread cylindrical pin. The fixed connection of the supporting base and the movable template of the injection molding machine is realized by the matching of the second inner hexagon screw and the inner thread cylindrical pin, the loosening phenomenon cannot be generated, the fixing mode is very firm and stable, and the impact resistance of the turntable supporting device is improved.

The internal thread cylindrical pin is located below the T-shaped supporting sliding block in the vertical direction.

Compared with the prior art, the invention has the advantages that:

1) two supporting rollers correspond alone and install on two mutually independent T type supporting slide's front portion, and every T type supporting slide accessible adjusting screw carries out the fine setting of position and makes the supporting roller and the carousel line contact of installing on this T type supporting slide's the front portion, and this kind of independent control mode need not many times position adjustment, has improved the convenience of supporting roller position adjustment greatly.

2) The T-shaped supporting slide block is not directly connected with the movable template, but the supporting base is directly connected with the movable template, and the mounting force arm of the supporting roller is greatly shortened by adding the supporting base, so that the shock resistance of the turntable supporting device is improved.

Drawings

FIG. 1 is a schematic perspective view of a turntable support apparatus according to the present invention;

FIG. 2 is an exploded view of the turntable support apparatus of the present invention;

FIG. 3 is a schematic cross-sectional view of the turntable supporting device of the present invention taken along the axial direction of one of the supporting rollers;

fig. 4 is a schematic structural diagram of the two turntable supporting devices of the invention mounted on the movable mold plate of the turntable multi-component injection molding machine.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The invention provides a turntable supporting device which is suitable for a turntable type multi-component injection molding machine and comprises a supporting base 1, a supporting pressure plate 2, two T-shaped supporting slide blocks 3 and two supporting rollers 4, wherein the front end of the supporting base 1 is bilaterally symmetrically provided with two mutually independent grooves 11, the transverse section of the supporting base 1 is in a structure shaped like a Chinese character 'shan', the top of the supporting pressure plate 2 is downwards bilaterally symmetrically provided with two mutually independent notches 21, the longitudinal section of the supporting pressure plate 2 is in the structure shaped like the Chinese character 'shan', the width of each notch 21 is smaller than that of each groove 11, the supporting pressure plate 2 is fixed on the front end of the supporting base 1 through 8 third inner hexagon screws 22, the notches 21 are communicated with the corresponding grooves 11, the centers of the notches 21 and the grooves 11 are aligned to form a T-shaped groove 5, the rear part of each T-shaped supporting slide block 3 is tightly embedded into the, the supporting roller 4 is connected to the front portion of the T-shaped supporting sliding block 3 in a rolling mode, the supporting roller 4 is located in front of the supporting pressing plate 2, an adjusting screw 61 vertically penetrates through the position, located below the notch 21, of the supporting pressing plate 2, the top of the adjusting screw 61 is abutted to the bottom end face of the rear portion of the T-shaped supporting sliding block 3, the supporting base 1 is fixed to a movable mold plate 91 of the injection molding machine and located below a rotary table 92 of the injection molding machine, the supporting roller 4 is made to contact with the rotary table 92 of the injection molding machine as far as possible, the supporting roller 4 is made to be in line contact with the rotary table 92 of the injection molding machine by adjusting the adjusting screw 61 to finely adjust the position of the supporting roller 4, and the supporting roller.

In the present embodiment, the T-shaped supporting slider 3 is composed of a T-shaped sliding portion 31 at the rear and a connecting shaft 32 at the front, the T-shaped sliding portion 31 is closely embedded in the T-shaped groove 5, and the connecting shaft 32 is located in front of the supporting platen 2. Since the support roller 4 is connected to the front portion of the T-shaped support block 3, the front portion of the T-shaped support block 3 is a shaft, i.e., the connecting shaft 32.

In the present embodiment, the front end surface of the transverse portion 311 of the T-shaped sliding portion 31 is closely attached to the rear end surface of the supporting platen 2, and the rear end surface of the transverse portion 311 of the T-shaped sliding portion 31 is closely attached to the bottom of the groove 11, that is, the transverse portion 311 of the T-shaped sliding portion 31 is clamped by the bottom of the groove 11 and the rear end surface of the supporting platen 2, so that the stability of the T-shaped supporting slider 3 and the supporting roller 4 is ensured, and the vertical portion 312 of the T-shaped sliding portion 31 is adapted to the notch 21.

In this embodiment, the supporting roller 4 is connected to the connecting shaft 32 through the bearing 71, the snap spring 72 and the retainer ring 73, and the connecting manner between the supporting roller 4, the bearing 71, the snap spring 72, the retainer ring 73 and the connecting shaft 32 adopts the prior art, specifically: the bearing 71 is sleeved on the connecting shaft 32, the supporting roller 4 is mounted on the bearing 71, the snap spring 72 is embedded in the inner wall of the supporting roller 4 to limit the bearing 71, and the bearing retainer ring 73 is arranged at the tail end of the connecting shaft 32 to limit the bearing 71.

In this embodiment, an axial through hole 33 is formed in the T-shaped supporting slider 3 along the central axis of the connecting shaft 32, a threaded fixing hole 12 is formed in a position, corresponding to the axial through hole 33, on the supporting base 1, a single side of the axial through hole 33 is larger than the threaded fixing hole 12 by about 1.5-2.5 mm, and the adjusting screw 61 adjusts the T-shaped supporting slider 3 so that the supporting roller 4 is in line contact with a turntable 92 of the injection molding machine and then passes through an inner hole of the bearing retainer 73 by using the first hexagon socket head cap screw 34, and the axial through hole 33 is screwed with the threaded fixing hole 12 to fixedly lock the supporting roller 4 and the T-shaped supporting slider 3 on the supporting base 1. Because the central axis of the axial through hole 33 is not in the same straight line with the central axis of the threaded fixing hole 12 after the position of the T-shaped supporting sliding block 3 is finely adjusted, in order to fixedly lock the supporting roller 4 and the T-shaped supporting sliding block 3 on the supporting base 1, the aperture of the axial through hole 33 is designed to be larger than the aperture of the threaded fixing hole 12, through a large number of experiments, fine adjustment is performed after coarse adjustment, and the aperture of the axial through hole 33 is designed to be larger than the aperture of the threaded fixing hole 12 by 3-5 mm enough.

In this embodiment, the adjusting screw 61 is a hexagon socket flat-end set screw, two adjusting screws 61 vertically penetrate and are disposed below the notch 21 on the supporting pressure plate 2, a hexagon nut 62 is connected to the adjusting screw 61 through a thread, and the hexagon nut 62 contacts with the bottom end surface of the supporting pressure plate 2.

In the present embodiment, a gap 42 exists between the supporting roller 4 and the supporting platen 2, so that the supporting roller 4 and the supporting platen 2 are prevented from being damaged due to friction generated between the supporting roller 4 and the supporting platen 2.

In this embodiment, 4 second socket

head cap screws

13 and 1 internally threaded cylindrical pin 14 are horizontally arranged on the bottom of each groove 11, the support base 1 is fixed on the movable mold plate 91 of the injection molding machine through 8 second socket

head cap screws

13 and 2 internally threaded cylindrical pins 14, and the internally threaded cylindrical pin 14 is located below the T-shaped support slider 3 in the vertical direction. The fixed connection between the supporting base 1 and the movable template 91 of the injection molding machine is realized by the matching of the second inner hexagon screw 13 and the inner thread cylindrical pin 14, so that the loosening phenomenon cannot occur, the fixing mode is very firm and stable, and the shock resistance of the turntable 92 supporting device is improved.

In general, two supporting rollers are used as a group in design, that is, the turntable supporting device has two supporting rollers, but it can also be designed to have only one supporting roller or more than two supporting rollers, and the structure of more than two supporting rollers has certain difficulty in adjustment.

In the actual design, the T-shaped supporting slider 3 may be designed into other shapes, that is, the rear portion of the T-shaped supporting slider 3, that is, the T-shaped sliding portion 31, is designed into other shapes, and the T-shaped groove 5 is designed into a shape adapted to the T-shaped sliding portion 31, so as to ensure that the sliding portion is tightly fitted with the groove, and in this embodiment, the fitting structure of the T-shaped sliding portion 31 and the T-shaped groove 5 is stable.

Claims

1. A turntable supporting device is characterized by comprising a supporting base, a supporting pressing plate, two T-shaped supporting sliding blocks and two supporting rollers, wherein two mutually independent grooves are symmetrically formed in the left and right of the front end of the supporting base, two mutually independent notches are symmetrically formed in the downward left and right of the top of the supporting pressing plate, the width of each notch is smaller than that of each groove, the supporting pressing plate is fixed at the front end of the supporting base, the notches are communicated with the corresponding grooves to form T-shaped grooves, the rear portions of the T-shaped supporting sliding blocks are tightly embedded into the T-shaped grooves, the supporting rollers are connected to the front portions of the T-shaped supporting sliding blocks in a rolling mode, the supporting rollers are located in front of the supporting pressing plate, and adjusting screws are vertically arranged below the notches on the supporting pressing plate in a penetrating mode, the top of the adjusting screw is abutted against the bottom end face of the rear part of the T-shaped supporting sliding block, the supporting base is fixed on a movable template of the injection molding machine, the supporting roller is in line contact with a turntable of the injection molding machine, and the supporting roller and the T-shaped supporting sliding block are fixedly locked on the supporting base.

2. The turntable supporting device according to claim 1, wherein the T-shaped supporting slider is composed of a T-shaped sliding portion at the rear and a connecting shaft at the front, the T-shaped sliding portion is tightly embedded in the T-shaped groove, and the connecting shaft is located in front of the supporting pressure plate.

3. The turntable supporting device according to claim 2, wherein a front end surface of a transverse portion of the T-shaped sliding portion abuts against a rear end surface of the supporting pressure plate, and a rear end surface of the transverse portion of the T-shaped sliding portion abuts against a bottom of the groove.

4. A turntable supporting device as claimed in claim 2 or 3, wherein said supporting rollers are connected to said connecting shaft by means of bearings, snap springs and bearing rings.

5. The turntable supporting device according to claim 4, wherein an axial through hole is formed in the T-shaped supporting slider along a central axis of the connecting shaft, a threaded fixing hole is formed in a position of the supporting base corresponding to the axial through hole, a single side of the axial through hole is larger than the threaded fixing hole by 1.5-2.5 mm, and the adjusting screw adjusts the T-shaped supporting slider to enable the supporting roller to pass through an inner hole of the bearing retainer ring after contacting with a turntable line of the injection molding machine by a first inner hexagonal screw and then fixedly lock the supporting roller and the T-shaped supporting slider on the supporting base by screwing with the threaded fixing hole after passing through the axial through hole.

6. A turntable support means as claimed in claim 1, wherein said indentation is centrally aligned with said recess.

7. The turntable supporting device according to claim 1, wherein the adjusting screw is a hexagon socket head cap end set screw, two adjusting screws vertically penetrate through the supporting pressing plate below the notch, a hexagon nut is connected to the adjusting screw in a threaded manner, and the hexagon nut contacts with the bottom end face of the supporting pressing plate.

8. A turntable support arrangement as claimed in claim 1, wherein a gap exists between said support rollers and said support platen.

9. The turntable supporting device according to claim 6, wherein said supporting base is fixed to a movable platen of an injection molding machine by a second socket head cap screw and an internally threaded cylindrical pin.

10. The turntable support device of claim 9, wherein said internally threaded cylindrical pin is located vertically below said T-shaped support block.