CN113665076B - Injection table of injection molding machine and injection molding machine - Google Patents

Injection table of injection molding machine and injection molding machine Download PDF

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Publication number
CN113665076B
CN113665076B CN202110997357.1A CN202110997357A CN113665076B CN 113665076 B CN113665076 B CN 113665076B CN 202110997357 A CN202110997357 A CN 202110997357A CN 113665076 B CN113665076 B CN 113665076B
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China
Prior art keywords
bearing
molding machine
injection molding
shaft section
seat
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CN202110997357.1A
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CN113665076A (en
Inventor
赵永政
卢全武
黎秀郁
莫玉麟
郭少炎
徐文来
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Gree Electric Appliances Inc of Zhuhai
Zhuhai Gree Intelligent Equipment Co Ltd
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Gree Electric Appliances Inc of Zhuhai
Zhuhai Gree Intelligent Equipment Co Ltd
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Priority to CN202110997357.1A priority Critical patent/CN113665076B/en
Publication of CN113665076A publication Critical patent/CN113665076A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/46Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58Details
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention provides an injection molding machine injection table and an injection molding machine, wherein the injection molding machine injection table comprises a screw rod nut assembly and a first supporting seat, the screw rod nut assembly comprises a screw rod, the screw rod is rotatably arranged, the screw rod comprises a screw rod body and a first shaft section connected with the screw rod body, the first shaft section is connected with the first supporting seat, the screw rod further comprises a second shaft section connected with the screw rod body, and the first shaft section and the second shaft section are arranged on two opposite sides of the screw rod body; the injection molding machine injection table further comprises: the second supporting seat is arranged at intervals with the first supporting seat, and the second shaft section is connected with the second supporting seat. The injection table of the injection molding machine solves the problem that in the prior art, the injection precision is often affected due to deformation of the screw rod in the injection process of the injection table of the injection molding machine.

Description

Injection table of injection molding machine and injection molding machine
Technical Field
The invention relates to the field of injection molding machines, in particular to an injection table of an injection molding machine and the injection molding machine.
Background
The traditional platform double drive structure of penetrating, the installation of lead screw mode designs into the cantilever beam structure that one end is fixed generally, and the one end of lead screw has the connecting axle, and the connecting axle links to each other with four or six angular contact bearing inner circles, and the bearing outer lane links to each other with penetrating the pedestal, and axial fixity is kept away from the one end of lead screw and is connected with synchronous pulley through lock nut locking, and synchronous pulley drives the lead screw and rotates.
However, the above-described structure has the following drawbacks:
in the glue injection process, the screw rod often influences the glue injection precision due to deformation;
the locking torque of the locking nut is not easy to control, the torque is large, the friction force is excessive, the bearing heats, the service life of the bearing is not facilitated, the torque is small, the loosening can occur, the synchronous pulley is required to be detached during maintenance, and great inconvenience is brought to maintenance personnel;
the number of the special angular contact ball bearings for the screw rod is large, and the cost is high.
Disclosure of Invention
The invention mainly aims to provide an injection table of an injection molding machine and the injection molding machine, which are used for solving the problem that in the prior art, in the process of injecting glue, the injection precision is often influenced due to deformation of a screw rod.
In order to achieve the above object, according to one aspect of the present invention, there is provided an injection table of an injection molding machine, comprising a screw nut assembly and a first support base, the screw nut assembly comprising a screw rotatably provided, the screw comprising a screw body and a first shaft section connected to the screw body, the first shaft section being connected to the first support base, the screw further comprising a second shaft section connected to the screw body, the first shaft section and the second shaft section being provided on opposite sides of the screw body; the injection molding machine injection table further comprises: the second supporting seat is arranged at intervals with the first supporting seat, and the second shaft section is connected with the second supporting seat.
Further, at least part of the second shaft section is inserted into the first mounting hole of the second supporting seat; the injection molding machine injection table further comprises: the second shaft section is connected with the second supporting seat through the second mounting structure.
Further, the second mounting structure includes: the first bearing seat is arranged in the first mounting hole and surrounds the second shaft section; the first bearing is sleeved on the second shaft section and is positioned between the second shaft section and the first bearing seat.
Further, the second mounting structure further includes: the second bearing is sleeved on the second shaft section and is positioned between the second shaft section and the first bearing seat; the second bearing is arranged at intervals from the first bearing and is positioned on one side of the first bearing, which is close to the first shaft section.
Further, the second mounting structure further includes: the first shaft sleeve is sleeved on the second shaft section; the first bearing is sleeved on the first shaft sleeve and is positioned between the first shaft sleeve and the first bearing seat; the second bearing sleeve is arranged on the first shaft sleeve and is positioned between the first shaft sleeve and the first bearing seat.
Further, the first shaft sleeve is provided with a first limiting surface; the pore wall of the second mounting hole of the first bearing seat comprises a second limiting surface, the second limiting surface and the first limiting surface are arranged at intervals along the axial direction of the first bearing, and the first bearing is arranged between the first limiting surface and the second limiting surface.
Further, the hole wall of the second mounting hole of the first bearing seat comprises a third limiting surface; the second mounting structure further includes: the second shaft sleeve is sleeved on the first shaft sleeve and is positioned at one side of the second shaft sleeve away from the first bearing, the second shaft sleeve is provided with a first end face, the first end face and the third limiting face are arranged at intervals along the axial direction of the second bearing, and the second bearing is arranged between the third limiting face and the first end face; the first lock nut is arranged on one side, far away from the second bearing, of the second shaft sleeve, and is sleeved on the first shaft sleeve and in threaded connection with the first shaft sleeve.
Further, a first shaft shoulder is formed between the second shaft section and the screw rod body, and the first end of the first shaft sleeve is propped against the first shaft shoulder; and/or, the second mounting structure further comprises a second lock nut, the second lock nut is sleeved on the second shaft section and is in threaded connection with the second shaft section, and the second lock nut is positioned on one side, away from the screw rod body, of the first shaft sleeve and is pressed at the second end of the first shaft sleeve.
Further, the hole wall of the first mounting hole comprises a fourth limiting surface; the second mounting structure further includes: the bearing gland is connected with the second supporting seat and provided with a second end face; the second end face and the fourth limiting face are arranged at intervals along the axial direction of the screw rod, and the first bearing seat is arranged between the fourth limiting face and the second end face.
Further, the first bearing is a thrust self-aligning roller bearing.
Further, the second bearing is a tapered roller bearing.
Further, the first shaft section is arranged in the third mounting hole of the first supporting seat in a penetrating way; the injection molding machine injection table also comprises a first mounting structure; the first mounting structure comprises a second bearing and a third bearing, the second bearing is connected with the first supporting seat, and the second bearing seat is arranged around the first shaft section; the third bearing is sleeved on the first shaft section and is positioned between the second bearing seat and the first shaft section.
According to another aspect of the invention, an injection molding machine is provided, which comprises an injection molding machine injection table, wherein the injection molding machine injection table is the injection molding machine injection table.
The injection molding machine injection table comprises a screw rod nut component, wherein the screw rod nut component is used for transmission to drive a plasticizing seat to move, a screw rod of the injection molding machine injection table is rotatably arranged on a first supporting seat and a second supporting seat, the screw rod comprises a screw rod body, two opposite ends of the screw rod body are respectively provided with a first shaft section and a second shaft section, the first supporting seat supports the first shaft section, the second supporting seat supports the second shaft section, the injection molding machine injection table is fixed at two ends, the screw rod is prevented from deforming, and further, the position of the plasticizing seat and the screw rod are prevented from shifting, and the injection molding precision of the injection molding machine injection table is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 shows a cross-sectional view of an embodiment of an injection molding machine table according to the present invention;
FIG. 2 shows an enlarged view of a portion of the injection molding machine of FIG. 1 at a second mounting structure;
FIG. 3 shows an enlarged view of a portion of the injection molding machine of FIG. 1 at a first mounting structure;
fig. 4 shows an isometric view of an embodiment of an injection molding machine table according to the present invention.
Wherein the above figures include the following reference numerals:
10. a feed screw nut assembly; 11. a screw rod; 12. a screw rod body; 13. a first shaft section; 14. a second shaft section; 15. a first shoulder; 16. a screw nut; 17. a second shoulder; 20. a first support base; 21. a third mounting hole; 30. a second support base; 31. a first mounting hole; 311. a fourth limiting surface; 40. a second mounting structure; 41. a first bearing seat; 411. a second mounting hole; 412. the second limiting surface; 413. a third limiting surface; 42. a first bearing; 43. a second bearing; 44. a first sleeve; 441. a first limiting surface; 45. a second sleeve; 451. a first end face; 46. a first lock nut; 47. a second lock nut; 48. a bearing gland; 481. a second end face; 50. a first mounting structure; 51. a second bearing seat; 52. a third bearing; 53. a retainer ring for the shaft;
1. plasticizing base; 2. a screw; 3. a driving member; 4. a synchronous pulley assembly; 5. a pressure sensor.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The invention provides an injection table of an injection molding machine, referring to fig. 1 to 4, the injection table comprises a screw-nut assembly 10 and a first supporting seat 20, the screw-nut assembly 10 comprises a screw rod 11, the screw rod 11 is rotatably arranged, the screw rod 11 comprises a screw rod body 12 and a first shaft section 13 connected with the screw rod body 12, the first shaft section 13 is connected with the first supporting seat 20, the screw rod 11 also comprises a second shaft section 14 connected with the screw rod body 12, and the first shaft section 13 and the second shaft section 14 are arranged on two opposite sides of the screw rod body 12; the injection molding machine injection table further comprises: the second supporting seat 30 is disposed at a distance from the first supporting seat 20, and the second shaft section 14 is connected to the second supporting seat 30.
The injection molding machine injection table comprises a screw rod nut assembly 10, wherein the screw rod nut assembly 10 is used for transmission to drive a plasticizing seat to move, a screw rod 11 of the injection molding machine injection table is rotatably arranged on a first supporting seat 20 and a second supporting seat 30, the screw rod 11 comprises a screw rod body 12, two opposite ends of the screw rod body 12 are respectively provided with a first shaft section 13 and a second shaft section 14, the first supporting seat 20 supports the first shaft section 13, the second supporting seat 30 supports the second shaft section 14, and the injection molding machine injection table is prevented from deforming by fixing two ends, so that the position of the plasticizing seat and the screw rod are prevented from being deviated, and the injection molding precision of the injection molding machine injection table is ensured.
Specifically, the screw nut assembly 10 is a ball screw.
Specifically, the screw body 12, the first shaft section 13, and the second shaft section 14 are coaxially disposed.
In the present embodiment, the screw nut assembly 10 includes a screw nut 16, the screw nut 16 being sleeved on the screw body 12 so that the screw nut 16 moves in the extending direction of the screw body 12 when the screw body 12 rotates; the injection machine injection table further comprises a plasticizing seat 1 and a screw rod 2, wherein the plasticizing seat 1 is connected with a screw rod nut 16, and the screw rod 2 is connected with the plasticizing seat 1 so that the screw rod nut 16 drives the plasticizing seat 1 and the screw rod 2 to move.
In the present embodiment, at least part of the second shaft section 14 is inserted into the first mounting hole 31 of the second support seat 30; the injection molding machine injection table further includes a second mounting structure 40, and the second shaft section 14 is connected to the second support base 30 through the second mounting structure 40. Such an arrangement may support the second shaft section 14 by the second mounting structure 40, be able to withstand large axial forces, and facilitate rotation of the second shaft section 14.
In the present embodiment, the second mounting structure 40 includes: a first bearing housing 41 disposed within the first mounting hole 31 and disposed about the second shaft section 14; the first bearing 42 is sleeved on the second shaft section 14 and is located between the second shaft section 14 and the first bearing seat 41.
In the present embodiment, the second mounting structure 40 further includes a second bearing 43, where the second bearing 43 is sleeved on the second shaft section 14 and is located between the second shaft section 14 and the first bearing seat 41; wherein the second bearing 43 is spaced apart from the first bearing 42 and is located on a side of the first bearing 42 adjacent to the first shaft section 13.
Specifically, when the screw nut 16 drives the screw 2 to move forward to jet glue, the screw 11 bears a larger first axial force, and at this time, the first bearing 42 mainly bears the first axial force; when the screw 2 and the screw nut 16 move rearward, the screw 11 is subjected to a second axial force (wherein the second axial force is smaller than the first axial force), and at this time, the second bearing 43 mainly receives the second axial force.
In the present embodiment, the second mounting structure 40 further includes: a first sleeve 44 sleeved on the second shaft section 14; the first bearing 42 is sleeved on the first shaft sleeve 44 and is positioned between the first shaft sleeve 44 and the first bearing seat 41; the second bearing 43 is sleeved on the first sleeve 44 and is located between the first sleeve 44 and the first bearing housing 41. Such arrangement facilitates installation of the first bearing and the second bearing, avoiding wear of the screw rod between the first bearing and the second bearing installed on the screw rod.
In the present embodiment, the first sleeve 44 has a first limiting surface 441; the hole wall of the second mounting hole 411 of the first bearing seat 41 includes a second limiting surface 412, the second limiting surface 412 and the first limiting surface 441 are disposed at intervals along the axial direction of the first bearing 42, and the first bearing 42 is disposed between the first limiting surface 441 and the second limiting surface 412. This arrangement limits the first bearing 42 in the axial direction.
Specifically, the second shaft section 14 is disposed through the second mounting hole 411.
Specifically, the second limiting surface 412 and the first limiting surface 441 are both perpendicular to the axis of the screw rod.
Specifically, the first sleeve 44 includes a sleeve and a boss disposed on an outer wall of the sleeve, the sleeve being sleeved over the second shaft section 14; the protruding portion protrudes from the sleeve and surrounds the sleeve, the protruding portion is located on one side, away from the second bearing 43, of the first bearing 42, and the protruding portion is provided with a first limiting surface 441.
Specifically, the second mounting hole 411 is a first stepped hole, where the first stepped hole includes a first hole section and a second hole section, the second hole section is located on a side of the first hole section near the second bearing, and a second limiting surface 412 is formed at a connection portion of the first hole section and the second hole section.
In the present embodiment, the hole wall of the second mounting hole 411 of the first bearing housing 41 includes a third limiting surface 413; the second mounting structure 40 further includes: the second shaft sleeve 45 is sleeved on the first shaft sleeve 44 and is positioned on one side of the second shaft sleeve 43 away from the first bearing 42, the second shaft sleeve 45 is provided with a first end face 451, the first end face 451 and the third limiting face 413 are arranged at intervals along the axial direction of the second shaft sleeve 43, and the second shaft sleeve 43 is arranged between the third limiting face 413 and the first end face 451; the first lock nut 46 is disposed on a side of the second shaft sleeve 45 away from the second shaft sleeve 43, and the first lock nut 46 is sleeved on the first shaft sleeve 44 and is in threaded connection with the first shaft sleeve 44.
In a specific implementation, the first shaft sleeve 44, the first bearing 42, the second bearing 43, the first bearing seat 41 and the second shaft sleeve 45 can be locked in the axial direction of the screw rod and form a whole body through the first locking nut 46, and the whole body can be assembled and then integrally mounted on the second supporting seat 30.
Specifically, the first stepped hole further includes a third hole section and a fourth hole section, the fourth hole section is located at one side of the first bearing of the third hole Duan Yuanli, and a third limiting surface 413 is formed at a connection position of the third hole section and the fourth hole section.
Specifically, the third limiting surface 413 and the first end surface 451 are both disposed perpendicular to the axis of the screw.
In the present embodiment, a first shaft shoulder 15 is formed between the second shaft section 14 and the screw rod body 12, and a first end of the first shaft sleeve 44 abuts against the first shaft shoulder 15; and/or, the second mounting structure 40 further comprises a second lock nut 47, the second lock nut 47 is sleeved on the second shaft section 14 and is in threaded connection with the second shaft section 14, and the second lock nut 47 is located on one side of the first shaft sleeve 44 away from the screw rod body 12 and is pressed on the second end of the first shaft sleeve 44. Specifically, the first shaft shoulder 15 and the second lock nut 47 may fix the first shaft sleeve 44 in the axial direction of the screw.
Specifically, one end of the second lock nut 47 far away from the second lock nut 47 protrudes out of the end face of the second supporting seat 30, and the arrangement is convenient for screwing or unscrewing the second lock nut 47, so that torque can be conveniently applied to the second lock nut 47, and the problem that the locking torque of the second lock nut is not easy to control is solved; in addition, the first lock nut 46, the first shaft sleeve 44, the first bearing 42, the second bearing 43, the first bearing seat 41 and the second bearing sleeve 45 are assembled as a whole and then mounted on the second support seat 30, so that the second lock nut 47 is convenient to screw or unscrew, and the locking moment of the second lock nut is easy to control.
In the present embodiment, the hole wall of the first mounting hole 31 includes a fourth limit surface 311; the second mounting structure 40 further includes a bearing cap 48, the bearing cap 48 being coupled to the second support base 30, the bearing cap 48 having a second end face 481; the second end surface 481 and the fourth limiting surface 311 are disposed at intervals along the axial direction of the screw 11, and the first bearing housing 41 is disposed between the fourth limiting surface 311 and the second end surface 481. Specifically, the bearing cover 48 and the hole wall of the first mounting hole 31 axially limit the first bearing housing 41.
Specifically, the fourth limiting surface 311 and the second end surface 481 are both disposed perpendicular to the axis of the screw.
Specifically, the first mounting hole 31 is a second stepped hole, and the second stepped hole includes a fifth hole section and a sixth hole section, and a fourth limiting surface 311 is formed at a connection position of the fifth hole section and the sixth hole section.
Specifically, the bearing cover 48 is fixed to the second support base by a fastener; wherein the fastener may be a screw or a bolt.
In the present embodiment, the first bearing 42 is a thrust self-aligning roller bearing. The thrust self-aligning roller bearing can bear larger axial force, the first bearing 42 can bear the stress of the position by selecting the thrust self-aligning roller bearing, and the supporting effect is good.
In the present embodiment, the second bearing 43 is a tapered roller bearing. The second bearing 43 is a tapered roller bearing which can bear the stress at the position, and has good supporting effect.
In the present embodiment, the first shaft section 13 is inserted into the third mounting hole 21 of the first supporting seat 20; the injection molding machine table also includes a first mounting structure 50; the first mounting structure 50 comprises a second bearing block 51 and a third bearing block 52, the second bearing block 51 being connected to the first support block 20, the second bearing block 51 being arranged around the first shaft section 13; the third bearing 52 is sleeved on the first shaft section 13 and is located between the second bearing seat 51 and the first shaft section 13.
Optionally, the third bearing 52 is a deep groove ball bearing. The third bearing 52 is not subjected to axial force and only plays a supporting role, so that a deep groove ball bearing can be selected.
Specifically, the junction of the first shaft section 13 and the screw body 12 forms a second shoulder 17; the first mounting structure 50 further includes a shaft collar 53, and the third bearing 52 is disposed between the shaft collar 53 and the second shoulder 17. Wherein, first axle section 13 is provided with the mounting groove, and the mounting groove looks adaptation is used the retaining ring 53 with the axle to make the retaining ring 53 card establish on the mounting groove.
Specifically, the first supporting seat 20 is fixedly connected with the first supporting seat 20 through a fastener; wherein the fastener may be a screw or a bolt.
In this embodiment, the injection molding machine injection table further includes a driving assembly, the driving assembly includes a driving member 3 and a synchronous pulley assembly 4, the synchronous pulley assembly 4 includes a driving wheel, a driven wheel and a synchronous belt, the synchronous belt is sleeved on the driving wheel and the driven wheel, the driving member 3 is connected with the driving wheel, and the driven wheel is connected with one end of the first shaft section 13 far away from the screw rod body 12 so as to drive the screw rod to rotate.
Alternatively, the driving member 3 is a motor.
In the present embodiment, the screw nut assembly 10 and the driving assembly are provided in pairs, the screw nut assembly 10 and the driving assembly are provided in two pairs, and the two screw nut assemblies 10 are provided at opposite sides of the plasticizing base 1. The mode that all fixes the lead screw both ends through first supporting seat and second supporting seat can avoid because of the displacement and inclination of plasticizing seat 1 and two lead screw nut subassembly junction that lead to when the deformation degree of two lead screws is inconsistent are different, guarantee the injection molding machine and penetrate the gluey precision of platform.
In this embodiment, the pressure sensor 5 is connected with the plasticizing socket 1 and the screw nut, respectively, so that the screw nut is connected with the plasticizing socket 1 through the pressure sensor 5, and the pressure sensor 5 is used for detecting the stress condition so as to alarm when the stress exceeds a predetermined value.
In one embodiment, the lead screw 11 is installed in a manner that two ends are fixed, one end is supported by a thrust self-aligning roller bearing and a tapered roller bearing, the other end is supported by a deep groove ball bearing, and the stress mainly depends on the thrust self-aligning roller bearing at the front end. The outer ring of the glue injection bearing (comprising a thrust aligning roller bearing and a tapered roller bearing) is arranged on the first bearing seat 41, the inner ring is arranged on the first shaft sleeve 44, the first locking nut 46 can be locked by a large moment, and the glue injection bearing, the first bearing seat 41 and the first shaft sleeve 44 can be assembled into a whole and then are arranged on the second supporting seat 30. The first lock nut 46 protrudes slightly from the end surface of the second support base 30 away from the first support base 20, so that a moment can be applied to the first lock nut 46. After the first bearing seat 41, the glue injection bearing and the first shaft sleeve 44 are integrally installed, the screw rod can be installed, the screw rod is easy to install and disassemble, and the performance requirement can be met by adopting a common bearing, so that the cost is saved.
In specific implementation, the glue injection action drives the two screw rods 11 through the two motors respectively, the screw rod nuts 16 are fixed on the pressure sensor 5, and the pressure sensor 5 is fixed on the plasticizing seat 1, so that the screw rod 2 is driven to perform the glue injection action. Firstly, the second shaft section 14 of the screw rod 11 is supported and stressed by a thrust aligning roller bearing and a tapered roller bearing, when the screw rod is installed, the outer ring of the bearing (comprising the thrust aligning roller bearing and the tapered roller bearing) can be respectively installed on a first bearing seat 41 on a workbench, the inner ring is installed on a first shaft sleeve 44, and then the second shaft sleeve 45 is installed, and a first locking nut 46 is screwed; secondly, integrally mounting the first bearing seat 41, the thrust aligning roller bearing, the tapered roller bearing, the second shaft sleeve 45 and the first locking nut 46 on the second supporting seat 30, and then mounting the bearing gland 48 on the second supporting seat 30 to compress the first bearing seat 41; the screw rod 11 penetrates from the first supporting seat 20 and the first installation structure 50, the second locking nut 47 is locked, and when the second shaft section of the screw rod is installed, the two locking nuts (the first locking nut 46 and the second locking nut 47) are only needed to be checked during disassembly and overhaul. Finally, the pressure sensor 5 is mounted on the screw nut 16, then the deep groove ball bearing at the first shaft section and the second bearing seat 51 are mounted, and the shaft retainer ring 53 is mounted after locking.
The invention points of the application are as follows: the screw rod adopts a two-end fixing mode, so that screw rod deformation is reduced, and glue injection precision is improved; the injecting glue stress bearing is designed at the front end (namely the second supporting seat 30), and the cost is reduced by the combination mode of a thrust aligning roller bearing and a tapered roller bearing; the thrust self-aligning roller bearing and the tapered roller bearing are arranged on the first shaft sleeve 44 and separated from the screw rod, so that the installation and the disassembly are convenient, the thrust self-aligning roller bearing, the tapered roller bearing, the first shaft sleeve 44 and the first bearing seat 41 can be arranged on a workbench, after the installation is finished, the whole device is arranged on the first bearing seat 41, and the locking of the first locking nut 46 is easy to control.
The invention also provides an injection molding machine, which comprises an injection molding machine injection table, wherein the injection molding machine injection table is the injection molding machine injection table in the embodiment.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
the injection molding machine injection table comprises a screw rod nut assembly 10, wherein the screw rod nut assembly 10 is used for transmission to drive a plasticizing seat to move, a screw rod 11 of the injection molding machine injection table is rotatably arranged on a first supporting seat 20 and a second supporting seat 30, the screw rod 11 comprises a screw rod body 12, two opposite ends of the screw rod body 12 are respectively provided with a first shaft section 13 and a second shaft section 14, the first supporting seat 20 supports the first shaft section 13, the second supporting seat 30 supports the second shaft section 14, and the injection molding machine injection table is prevented from deforming by fixing two ends, so that the position of the plasticizing seat and the screw rod are prevented from being deviated, and the injection molding precision of the injection molding machine injection table is ensured.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of being practiced otherwise than as specifically illustrated and described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. Injection molding machine injection table, including lead screw nut subassembly (10) and first supporting seat (20), lead screw nut subassembly (10) include lead screw (11), lead screw (11) rotationally set up, lead screw (11) include lead screw body (12) and with first axle section (13) that lead screw body (12) are connected, first axle section (13) with first supporting seat (20) are connected, characterized in that, lead screw (11) still include with lead screw body (12) are connected second axle section (14), first axle section (13) with second axle section (14) set up in lead screw body (12) are relative both sides; the injection molding machine injection table further comprises:
the second supporting seat (30) is arranged at intervals with the first supporting seat (20), and the second shaft section (14) is connected with the second supporting seat (30);
the screw rod body (12), the first shaft section (13) and the second shaft section (14) are coaxially arranged;
the screw nut assembly (10) comprises a screw nut (16), and the screw nut (16) is sleeved on the screw body (12);
the injection table of the injection molding machine further comprises a plasticizing seat (1), and the plasticizing seat (1) is connected with the screw nut (16);
the plasticizing seat (1) is arranged between the first supporting seat (20) and the second supporting seat (30).
2. Injection molding machine table according to claim 1, characterized in that at least part of the second shaft section (14) is inserted in a first mounting hole (31) of the second support seat (30); the injection molding machine injection table further comprises:
-a second mounting structure (40), said second shaft section (14) being connected to said second support seat (30) by means of said second mounting structure (40).
3. Injection molding machine table according to claim 2, wherein the second mounting structure (40) comprises:
a first bearing seat (41) arranged in the first mounting hole (31) and surrounding the second shaft section (14);
the first bearing (42) is sleeved on the second shaft section (14) and is positioned between the second shaft section (14) and the first bearing seat (41).
4. An injection molding machine table according to claim 3, wherein the second mounting structure (40) further comprises:
the second bearing (43) is sleeved on the second shaft section (14) and is positioned between the second shaft section (14) and the first bearing seat (41); wherein the second bearing (43) is arranged at a distance from the first bearing (42) and is located on the side of the first bearing (42) close to the first shaft section (13).
5. The injection molding machine table of claim 4, wherein the second mounting structure (40) further comprises:
a first shaft sleeve (44) sleeved on the second shaft section (14);
the first bearing (42) is sleeved on the first shaft sleeve (44) and is positioned between the first shaft sleeve (44) and the first bearing seat (41); the second bearing (43) is sleeved on the first shaft sleeve (44) and is positioned between the first shaft sleeve (44) and the first bearing seat (41).
6. The injection molding machine table according to claim 5, wherein the first sleeve (44) has a first limiting surface (441); the pore wall of the second mounting hole (411) of the first bearing seat (41) comprises a second limiting surface (412), the second limiting surface (412) and the first limiting surface (441) are arranged at intervals along the axial direction of the first bearing (42), and the first bearing (42) is arranged between the first limiting surface (441) and the second limiting surface (412).
7. Injection molding machine table according to claim 5, characterized in that the wall of the second mounting hole (411) of the first bearing seat (41) comprises a third limiting surface (413); the second mounting structure (40) further comprises:
a second bearing sleeve (45) sleeved on the first bearing sleeve (44) and positioned on one side of the second bearing (43) away from the first bearing (42), wherein the second bearing sleeve (45) is provided with a first end surface (451), the first end surface (451) and the third limiting surface (413) are arranged at intervals along the axial direction of the second bearing (43), and the second bearing (43) is arranged between the third limiting surface (413) and the first end surface (451);
the first lock nut (46) is arranged on one side, far away from the second bearing (43), of the second shaft sleeve (45), and the first lock nut (46) is sleeved on the first shaft sleeve (44) and is in threaded connection with the first shaft sleeve (44).
8. Injection molding machine injection table according to claim 5, characterized in that a first shoulder (15) is formed between the second shaft section (14) and the screw rod body (12), a first end of the first shaft sleeve (44) being arranged against the first shoulder (15); and/or
The second mounting structure (40) further comprises a second locking nut (47), the second locking nut (47) is sleeved on the second shaft section (14) and is in threaded connection with the second shaft section (14), and the second locking nut (47) is located on one side, far away from the screw rod body (12), of the first shaft sleeve (44) and is pressed at the second end of the first shaft sleeve (44).
9. A table according to claim 3, wherein the wall of the first mounting hole (31) comprises a fourth limiting surface (311); the second mounting structure (40) further comprises:
a bearing cover (48) connected with the second supporting seat (30), wherein the bearing cover (48) is provided with a second end surface (481); the second end face (481) and the fourth limiting face (311) are arranged at intervals along the axial direction of the screw rod (11), and the first bearing seat (41) is arranged between the fourth limiting face (311) and the second end face (481).
10. Injection molding machine table according to any one of claims 3 to 9, wherein the first bearing (42) is a thrust self-aligning roller bearing.
11. Injection molding machine table according to any of claims 4 to 8, characterized in that the second bearing (43) is a tapered roller bearing.
12. Injection molding machine table according to any one of claims 1 to 9, characterized in that the first shaft section (13) is threaded into a third mounting hole (21) of the first support seat (20); the injection molding machine table further comprises a first mounting structure (50);
the first mounting structure (50) comprises a second bearing seat (51) and a third bearing seat (52), the second bearing seat (51) is connected with the first supporting seat (20), and the second bearing seat (51) is arranged around the first shaft section (13); the third bearing (52) is sleeved on the first shaft section (13) and is positioned between the second bearing seat (51) and the first shaft section (13).
13. An injection molding machine comprising an injection molding machine platen, wherein the injection molding machine platen is the injection molding machine platen of any one of claims 1 to 12.
CN202110997357.1A 2021-08-27 2021-08-27 Injection table of injection molding machine and injection molding machine Active CN113665076B (en)

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