CN110948790A - Rotary thread drawing system - Google Patents

Rotary thread drawing system Download PDF

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Publication number
CN110948790A
CN110948790A CN201911093976.7A CN201911093976A CN110948790A CN 110948790 A CN110948790 A CN 110948790A CN 201911093976 A CN201911093976 A CN 201911093976A CN 110948790 A CN110948790 A CN 110948790A
Authority
CN
China
Prior art keywords
thread
shaft
gear
contact piece
driving gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911093976.7A
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Chinese (zh)
Inventor
王贤德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KAI LAI MOULD (SHENZHEN) Ltd
Original Assignee
KAI LAI MOULD (SHENZHEN) Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KAI LAI MOULD (SHENZHEN) Ltd filed Critical KAI LAI MOULD (SHENZHEN) Ltd
Priority to CN201911093976.7A priority Critical patent/CN110948790A/en
Publication of CN110948790A publication Critical patent/CN110948790A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2618—Moulds having screw-threaded mould walls
    • B29C45/262—Moulds having screw-threaded mould walls provided with unscrewing drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2001/00—Articles provided with screw threads

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

The invention relates to a rotary screw-thread drawing system, which comprises a screw-thread drawing driver and a plurality of passive screw-thread extractors, wherein the screw-thread drawing driver is simultaneously meshed with the passive screw-thread extractors, and the screw-thread drawing driver simultaneously drives the passive screw-thread extractors to act, so that the passive screw-thread extractors complete the action of rotating and drawing screw threads.

Description

Rotary thread drawing system
Technical Field
The invention relates to a screw thread drawing system, in particular to a screw thread drawing system which comprises a screw thread drawing driver and a plurality of passive screw thread extractors, wherein the screw thread drawing driver is simultaneously meshed with the passive screw thread extractors, and the screw thread drawing driver simultaneously drives the passive screw thread extractors to act so that the passive screw thread extractors complete the action of rotating and drawing screw threads.
Background
Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like. The working principle is that at a certain temperature, the plastic material which is completely melted is stirred by a screw, injected into a die cavity by high pressure, cooled and solidified to obtain a molded product. The method is suitable for mass production of parts with complex shapes, and is one of important processing methods.
In the process of producing a product by using a mold, if a thread structure is arranged on the product, the mold opening can not be carried out by using the traditional mold opening method, the existing thread-drawing method adopts a motor to drive a gear set so as to drive an axis to rotate and finish the thread-drawing action, but the traditional thread-drawing method has the defects of complex structure, low thread-drawing efficiency and the like, which is the main defect of the traditional technology.
Disclosure of Invention
The technical scheme adopted by the invention is as follows: a rotary screw-thread drawing system comprises a screw-thread drawing driver and a plurality of passive screw-thread extractors, wherein the screw-thread drawing driver is simultaneously meshed with the passive screw-thread extractors, and the screw-thread drawing driver simultaneously drives the passive screw-thread extractors to act so that the passive screw-thread extractors complete the rotary screw-thread drawing action.
The screw thread drawing driver comprises a driving gear shaft, a rotating worm and a driving gear, wherein the driving gear shaft comprises a driving gear and a driving shaft, the driving gear is fixedly connected to the driving shaft, the driving gear and the driving shaft rotate along the same axis, and a convex key is arranged at the front end of the driving shaft.
This rotate the worm including connecting axle and worm, this worm fixed connection is at the front end of this connecting axle, this connecting axle and this worm rotate along the same axis, the keyway has been seted up at the rear end of this connecting axle with this convex key is corresponding, this convex key joint is in this keyway, this driving gear axle and this rotate the worm and rotate along the same axis, this drive gear cover is established on this worm, this drive gear includes rotating gear and rotation cover, wherein, the jack has been seted up to this rotating gear central point, this rotation cover is inserted and is established in this jack, be provided with the internal thread in this rotation cover, this internal thread meshes with the external screw thread of this worm mutually, this driving gear axle, this rotation worm and this drive gear rotate along the same axis.
The passive thread rolling-out device comprises a fixing seat and a thread shaft, wherein the thread shaft is rotatably inserted into the fixing seat, the spatial position of the thread shaft is fixed through the fixing seat, a thread forming part and a rolling tooth are arranged on the thread shaft, the thread forming part is arranged at the front end part of the thread shaft, the rolling tooth is meshed with the rotating gear of the driving gear, and the thread forming part and the rolling tooth rotate along the same axis.
The passive thread spinner further comprises a measuring section comprising a measuring gear and a measurer, wherein the measuring gear is connected to a rear end of the threaded shaft.
The measurer comprises a fixed contact piece and a toggle contact piece, wherein the toggle contact piece comprises a toggle piece, an upper contact piece and a lower contact piece, the upper contact piece and the lower contact piece are connected to the rear end of the toggle piece at the same time, the front end of the toggle piece extends forwards and corresponds to the measuring gear, the fixed contact piece is arranged between the upper contact piece and the lower contact piece, dynamic contacts are respectively arranged on the upper contact piece and the lower contact piece, a static contact is arranged on the fixed contact piece corresponding to the dynamic contacts, and the static contact corresponds to the dynamic contacts.
The thread-extracting driver is simultaneously engaged with three of the passive thread tappers.
The driving gear is fixedly connected with the end part of the driving shaft. All be provided with the keyway on this jack and this rotate the cover, connect the key joint in this jack and this keyway of this rotation cover, will this rotating gear and this rotation cover joint together through this connection key. The transverse width of the rotary teeth is greater than the transverse width of the rotary gear. The measuring gear is screwed on the threaded shaft.
The invention has the beneficial effects that: when the thread-drawing driver works, the driving gear of the driving gear shaft is directly meshed with a power output shaft of a motor, the driving gear shaft is driven by the motor to rotate, and the driving gear is finally driven to rotate by the rotating worm.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic structural view of the thread-drawing driver of the present invention.
Fig. 3 is an exploded view of the thread-extracting driver of the present invention.
Fig. 4 is an exploded view of the passive thread spinner of the present invention.
Fig. 5 is a schematic cross-sectional structure of the present invention.
FIG. 6 is a schematic view of the structure of the measuring part of the present invention.
FIG. 7 is a schematic view of the thread extracting actuator of the present invention simultaneously engaging three passive thread extractors.
Detailed Description
As shown in fig. 1-6, a rotary thread extracting system includes a thread extracting driver 100 and a number of passive thread extractors 200.
The thread extracting driver 100 simultaneously engages with a plurality of the passive thread tappers 200.
The thread-drawing driver 100 drives a plurality of the passive thread extractors 200 to operate simultaneously, so that the passive thread extractors 200 complete the operation of rotating and drawing threads.
The thread-drawing driver 100 includes a driving gear shaft 110, a rotating worm 120 and a driving gear 130, wherein the driving gear shaft 110 includes a driving gear 111 and a driving shaft 112, and the driving gear 111 is fixedly connected to the driving shaft 112.
In one embodiment, the driving gear 111 is fixedly coupled to an end of the driving shaft 112.
The driving gear 111 and the driving shaft 112 rotate along the same axis.
A boss key 113 is provided at the tip end of the drive shaft 112.
The rotating worm 120 includes a connecting shaft 121 and a worm 122, the worm 122 is fixedly connected to a front end portion of the connecting shaft 121, the connecting shaft 121 and the worm 122 rotate along the same axis, a key groove 123 is formed at a rear end portion of the connecting shaft 121 corresponding to the protruding key 113, and the protruding key 113 is clamped in the key groove 123.
The driving gear shaft 110 and the rotating worm 120 rotate along the same axis.
The driving gear 130 is sleeved on the worm 122, the driving gear 130 includes a rotating gear 131 and a rotating sleeve 132, wherein an insertion hole 133 is formed in the center of the rotating gear 131, and the rotating sleeve 132 is inserted into the insertion hole 133.
In practical applications, key slots are formed in both the insertion hole 133 and the rotating sleeve 132, and the connecting key 134 is engaged with the insertion hole 133 and the key slot of the rotating sleeve 132, so that the rotating gear 131 is engaged with the rotating sleeve 132 via the connecting key 134.
The rotating sleeve 132 has an internal thread formed therein, which is engaged with the external thread of the worm 122.
The driving gear shaft 110, the rotating worm 120 and the driving gear 130 rotate along the same axis.
The driving gear shaft 110, the rotating worm 120 and the driving gear 130 of each component in the thread-drawing driver 100 of the present invention rotate along the same axis, and at the same time, the three components are directly connected in a transmission manner by a key way and a connecting key, and the present invention has the characteristics of simple transmission structure, high transmission efficiency and low failure rate.
When the thread-drawing driver 100 of the present invention operates, the driving gear 111 of the driving gear shaft 110 is directly engaged with the power output shaft of the motor, the driving gear shaft 110 is driven by the motor to rotate, and the driving gear 130 is finally driven to rotate by the rotating worm 120.
The passive thread extractor 200 includes a fixing base 210 and a threaded shaft 220, wherein the threaded shaft 220 is rotatably inserted into the fixing base 210, and the spatial position of the threaded shaft 220 is fixed by the fixing base 210.
The screw shaft 220 is provided with a screw forming portion 230 and a rotary tooth 240, wherein the screw forming portion 230 is located at a front end portion of the screw shaft 220, and when a product is injection-molded by using a mold, the product is formed at the screw forming portion 230.
The rotary teeth 240 are engaged with the rotary gear 131 of the driving gear 130, and the thread forming part 230 and the rotary teeth 240 rotate along the same axis.
In practical implementation, the transverse width of the rotary teeth 240 is greater than the transverse width of the rotary gear 131.
The passive thread spinner 200 further comprises a measuring part 300, wherein the measuring part 300 comprises a measuring gear 310 and a measurer 320, wherein the measuring gear 310 is connected to the rear end of the threaded shaft 220, and when the measuring gear 310 is implemented, the measuring gear 310 is screwed on the threaded shaft 220 to facilitate the assembly and disassembly of the measuring part 300.
The measurer 320 comprises a fixed contact 330 and a toggle contact 340, wherein the toggle contact 340 comprises a toggle piece 341, an upper contact 342 and a lower contact 343.
The upper contact piece 342 and the lower contact piece 343 are connected to the rear end of the pick 341, and the front end of the pick 341 extends forward and corresponds to the measuring gear 310.
The fixed contact piece 330 is disposed between the upper contact piece 342 and the lower contact piece 343, dynamic contacts 351 are disposed on the upper contact piece 342 and the lower contact piece 343, respectively, a static contact 352 is disposed on the fixed contact piece 330 corresponding to the dynamic contacts 351, and the static contact 352 corresponds to the dynamic contacts 351.
When the screw thread drawing driver 100 works, the driven screw thread extractor 200 is driven to rotate to draw the screw thread, at this moment, the measuring gear 310 and the screw thread shaft 220 rotate synchronously, the measuring gear 310 pulls the toggle contact piece 340 to make the static contact 352 contact with the dynamic contact 351 to measure the rotating angle of the measuring gear 310, and further the drawn length distance of the screw thread shaft 220 is calculated, so that the whole system is controlled to stop, and a series of actions such as safety protection are performed.
In the embodiment shown in fig. 7, the thread-drawing driver 100 is preferably engaged with three passive thread runners 200 at the same time, so as to improve the motion stability of the whole structure by three-point positioning.

Claims (7)

1. A rotary tapping system, characterized by: comprises a screw thread drawing driver and a plurality of passive screw thread extractors, wherein the screw thread drawing driver is simultaneously meshed with the passive screw thread extractors, the screw thread drawing driver simultaneously drives the passive screw thread extractors to act, so that the passive screw thread extractors complete the action of rotating and drawing screw threads,
the screw thread drawing driver comprises a driving gear shaft, a rotating worm and a driving gear, wherein the driving gear shaft comprises a driving gear and a driving shaft, the driving gear is fixedly connected to the driving shaft, the driving gear and the driving shaft rotate along the same axis, a convex key is arranged at the front end part of the driving shaft,
the rotating worm comprises a connecting shaft and a worm, the worm is fixedly connected to the front end part of the connecting shaft, the connecting shaft and the worm rotate along the same axis, a key groove is formed in the rear end part of the connecting shaft corresponding to the convex key, the convex key is clamped in the key groove, the driving gear shaft and the rotating worm rotate along the same axis, the driving gear is sleeved on the worm and comprises a rotating gear and a rotating sleeve, a jack is formed in the central position of the rotating gear, the rotating sleeve is inserted in the jack, an internal thread is arranged in the rotating sleeve and meshed with an external thread of the worm, and the driving gear shaft, the rotating worm and the driving gear rotate along the same axis,
the passive thread spinner comprises a fixed seat and a thread shaft, wherein the thread shaft is rotatably inserted in the fixed seat, the spatial position of the thread shaft is fixed by the fixed seat, a thread forming part and a rotary tooth are arranged on the thread shaft, the thread forming part is arranged at the front end part of the thread shaft, the rotary tooth is meshed with the rotary gear of the driving gear, and the thread forming part and the rotary tooth rotate along the same axis,
the passive thread spinner further comprises a measuring section comprising a measuring gear and a measurer, wherein the measuring gear is connected to a rear end of the threaded shaft.
2. A rotary tapping system as claimed in claim 1, wherein: the measurer comprises a fixed contact piece and a toggle contact piece, wherein the toggle contact piece comprises a toggle piece, an upper contact piece and a lower contact piece, the upper contact piece and the lower contact piece are connected to the rear end of the toggle piece at the same time, the front end of the toggle piece extends forwards and corresponds to the measuring gear, the fixed contact piece is arranged between the upper contact piece and the lower contact piece, dynamic contacts are respectively arranged on the upper contact piece and the lower contact piece, a static contact is arranged on the fixed contact piece corresponding to the dynamic contacts, and the static contact corresponds to the dynamic contacts.
3. A rotary tapping system as claimed in claim 1, wherein: the thread-extracting driver is simultaneously engaged with three of the passive thread tappers.
4. A rotary tapping system as claimed in claim 1, wherein: the driving gear is fixedly connected with the end part of the driving shaft.
5. A rotary tapping system as claimed in claim 1, wherein: all be provided with the keyway on this jack and this rotate the cover, connect the key joint in this jack and this keyway of this rotation cover, will this rotating gear and this rotation cover joint together through this connection key.
6. A rotary tapping system as claimed in claim 1, wherein: the transverse width of the rotary teeth is greater than the transverse width of the rotary gear.
7. A rotary tapping system as claimed in claim 1, wherein: the measuring gear is screwed on the threaded shaft.
CN201911093976.7A 2019-11-11 2019-11-11 Rotary thread drawing system Pending CN110948790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911093976.7A CN110948790A (en) 2019-11-11 2019-11-11 Rotary thread drawing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911093976.7A CN110948790A (en) 2019-11-11 2019-11-11 Rotary thread drawing system

Publications (1)

Publication Number Publication Date
CN110948790A true CN110948790A (en) 2020-04-03

Family

ID=69977135

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911093976.7A Pending CN110948790A (en) 2019-11-11 2019-11-11 Rotary thread drawing system

Country Status (1)

Country Link
CN (1) CN110948790A (en)

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