CN212472287U

CN212472287U - Double-cylinder type injection platform assembly of injection stretch blow molding machine

Info

Publication number: CN212472287U
Application number: CN202020698699.4U
Authority: CN
Inventors: 焦家富; 庞武景
Original assignee: Ningbo Cortez Machinery Manufacturing Co ltd
Current assignee: Ningbo Cortez Machinery Manufacturing Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-02-05
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to an annotate and draw and blow device technical field, disclose a platform assembly is penetrated to double-cylinder formula of annotating drawing and blowing make-up machine, including: the injection rack is arranged on the base and can slide along the base; plasticizing device sets up on the injection frame, including: the device comprises a charging barrel, a screw movably arranged in the charging barrel, and a nozzle which is communicated with the charging barrel and used for spraying sizing materials in the charging barrel; the first driving device and the second driving device are arranged on the base; the first driving device is used for driving the screw rod to move back and forth, and the second driving device is used for driving the screw rod to rotate. The utility model has the advantages that the double-cylinder type shooting table assembly has simple maintenance and low maintenance cost, and the condition of disordered program control is not easy to occur; the plasticizing device has wide application range and high efficiency.

Description

Double-cylinder type injection platform assembly of injection stretch blow molding machine

Technical Field

The utility model relates to an annotate and draw and blow device technical field relates to a platform assembly is penetrated to double-cylinder formula of annotating drawing and blowing make-up machine.

Background

The injection stretch blow molding machine is widely applied to the production and preparation of most mineral water bottles, medicine bottle boxes and lamp covers, the injection platform assembly is one of the most core parts of the injection stretch blow molding machine, and in the process of injecting bottle blanks, the injection platform assembly is close to an injection mold, a nozzle is aligned to the position of a sprue of the mold, and the injection platform assembly is responsible for melting and injecting glue and providing power. In the existing injection, drawing and blowing molding process, a single-cylinder driving screw is mostly adopted, and the single cylinder drives the screw to rotate and store materials; driving the screw to move forward and backward for injection; the problems of easy control confusion, troublesome maintenance and high maintenance cost are caused. And the plasticizing device on the existing injection platform assembly has unreasonable temperature field control, low plasticizing efficiency and poor injection effect.

The publication number "CN 104057575A" discloses a double-cylinder horizontal injection molding structure, which comprises an oil pressure motor, a guide rod support, a guide rod, an injection oil cylinder, a thrust seat, an injection seat, a plasticizing part and a seat moving oil cylinder; the number of the injection oil cylinders is two, the injection seat is arranged between the two injection oil cylinders, the driving shafts of the two injection oil cylinders are respectively connected to two ends of the thrust seat, and the oil pressure motor is arranged in the middle of the thrust seat; the driving part of the oil pressure motor is connected with the plasticizing component, the plasticizing component is fixed on the injection seat, and the injection seat is provided with a circular charging opening. The injection structure is easy to have the situation of disordered program control, and the injection structure is troublesome to maintain, low in efficiency and high in cost; and the arrangement of the plasticizing device is unreasonable, and the application range is limited.

SUMMERY OF THE UTILITY MODEL

The above is not enough to prior art, the utility model aims to solve the technical problem that a maintenance is simple, cost of maintenance is low, and is difficult for appearing the chaotic condition of program control, and the platform assembly is penetrated to the injection drawing that the plastify is efficient, application scope is wide double-cylinder formula of blowing make-up machine is proposed.

The utility model provides a technical scheme that its technical problem adopted is, provides a platform assembly is penetrated to double-cylinder formula of notes draw-blow make-up machine, including:

the injection device comprises a base and an injection frame arranged on the base, wherein the injection frame can slide along the base;

plasticizing device, set up on the injection frame, including: the device comprises a material cylinder, a screw movably arranged in the material cylinder and a nozzle which is communicated with the material cylinder and used for spraying sizing material in the material cylinder;

the first driving device and the second driving device are arranged on the base; the first driving device is used for driving the screw rod to move back and forth, and the second driving device is used for driving the screw rod to rotate.

Furthermore, the base is provided with two parallel guide rails, the injection frame is provided with two sliding blocks, and the two sliding blocks are respectively arranged on the two guide rails.

Furthermore, a guide rod and an oil cylinder are arranged on the base, wherein the guide rod and the guide rail are arranged in parallel, and the oil cylinder is used for driving the injection frame to slide.

Furthermore, an adjusting mechanism for controlling the opening and closing of the nozzle is arranged on the nozzle;

the adjusting structure comprises a thimble and a nozzle lock for driving the thimble; the nozzle lock is connected with the ejector pin; the nozzle is provided with an ejector pin hole along the radial direction, the ejector pin penetrates through the ejector pin hole, and the ejector pin can move along the axial direction of the ejector pin hole; the thimble is provided with a material guide hole.

Further, the nozzle lock can drive the material guide hole to be communicated with the nozzle, and the nozzle lock can drive the thimble to plug the nozzle.

Further, the plasticizing device is still including nozzle heating circle, cooling jacket and a plurality of feed cylinder heating circle, the nozzle heating circle cover is established on the nozzle, the cooling jacket with feed cylinder heating circle is all established the cover is established on the feed cylinder, and the cooling jacket is in the one end of keeping away from the nozzle.

Furthermore, a first feed inlet is formed in the charging barrel, and a second feed inlet is formed in the injection frame; the first feed inlet and the second feed inlet are communicated and coaxially arranged.

Further, the section of the second feed inlet is gradually reduced from top to bottom; and the section of the lowest end of the second feed port is smaller than that of the first feed port.

Furthermore, the screw rod is the separation type screw rod, including the reinforced section, the compression section and the plastify section that connect gradually, just the pitch of compression section all is less than reinforced section with the pitch of plastify section.

Furthermore, a backstop ring for preventing the rubber material from flowing backwards is arranged in the charging barrel, and a plasticizing section of the screw is movably arranged in the backstop ring in a penetrating mode.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the utility model discloses in, the seesaw of screw rod is through the transmission of first drive arrangement, and the rotation of screw rod is through the transmission of second drive arrangement, and the action with the rotation of screw rod and removal is separated, rotates and removes mutual noninterference, prevents to appear controlling the disorderly condition, and compares and penetrate a platform assembly in single cylinder drive formula, and the structure is simpler, and later stage dismouting is more convenient with the maintenance, and the maintenance cost is lower. Adopt separation type screw rod, through the initial position and the terminal position of reasonable control screw thread, and the pitch of control compression section all is less than the pitch of reinforced section and plastify section, makes it can be applicable to most sizing material, improves the application scope who penetrates a platform assembly, and is provided with the check ring in the silo, can effectively prevent the sizing material against the current. The nozzle is provided with an adjusting mechanism for controlling the on-off of the nozzle, and the nozzle is closed to prevent the rubber material from flowing out of the nozzle during the early storage; after the material storage is finished, the nozzle is conducted, so that the rubber material can be smoothly injected into the die, and the operation is convenient. A cooling sleeve is arranged at a position, close to a feeding hole, of the charging barrel, so that the glue material at the initial section is prevented from melting and blocking at the front end, and the subsequent glue material cannot smoothly flow into a material groove at the rear end; evenly the cover is equipped with end cover heating ring, nozzle on being equipped with end cover heating ring, the feed cylinder end cover and overlaps on the feed cylinder and be equipped with the nozzle heating ring, guarantees that the each stage of sizing material is heated evenly, prevents the cold material and overheated condition to appear, guarantees that injection efficiency is high and injection effect is good.

Drawings

Fig. 1 is a schematic structural view of the shooting table assembly (partially cut away) of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a top view (partially in section) of FIG. 1;

FIG. 4 is a schematic structural view of a stage assembly;

fig. 5 is a schematic structural view of the plasticizing device.

In the figure, the position of the upper end of the main shaft,

1. a base; 10. a guide rail; 11. a guide bar; 12. an oil cylinder;

2. an injection rack; 20. a slider; 21. a second feed port;

3. a plasticizing device; 30. a charging barrel; 31. a screw; 32. a nozzle; 33. an adjustment mechanism; 34. a nozzle heating ring; 35. a cooling jacket; 36. a charging barrel heating ring; 300. a trough; 301. a first feed port; 302. a check ring; 311. a feeding section; 312. a compression section; 313. a plasticizing section; 331. a thimble; 332. a nozzle lock; 3311. a material guide hole; 321. a thimble hole;

4. a first driving device; 5. a second driving device; 60. transmitting block; 61. a screw rod gland bush; 62. a signal transmitting device; 63. a gland; 64. a drive shaft; 65. a fixed seat; 66. an adjustment sheet; 67. a guide rod mounting plate; 68. a limiting sleeve; 69. an electric ruler connecting frame; 70. positioning blocks; 71. an end cap; 72. and an end cover heating ring.

Detailed Description

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

As shown in fig. 1 to 4, a dual-cylinder injection platform assembly of an injection stretch blow molding machine comprises: the injection molding machine comprises a base 1, an injection frame 2, a plasticizing device 3, a first driving device 4 and a second driving device 5.

The injection molding machine comprises a base 1 and an injection frame 2 arranged on the base 1, wherein the injection frame 2 can slide along the base 1, and a plasticizing device 3 on the base can be controlled to be close to an injection mold or far away from the injection mold; specifically, two guide rails 10 which are arranged in parallel are arranged on the base 1, two sliding blocks 20 are arranged on the injection frame 2, the two sliding blocks 20 are respectively arranged on the two guide rails 10, wherein the cross section of each guide rail 10 is in an i-shape, and the sliding blocks 20 are arranged in the i-shaped guide rails 10, so that the sliding blocks 20 can be effectively prevented from being separated from the guide rails 10. The base 1 is provided with a guide rod 11 which is arranged in parallel with the guide rail 10 and an oil cylinder 12 which is used for driving the injection frame 2 to slide, so that the movement precision of the injection frame 2 is ensured.

Plasticizing device 3, set up on injection frame 2, including: a barrel 30, a screw 31 movably disposed in the barrel 30, and a nozzle 32 communicating with the barrel 30 and supplying the sizing material in the barrel 30 to be ejected; the screw 31 is a separation screw, and comprises a feeding section 311, a compression section 312 and a plasticizing section 313 which are sequentially connected, wherein the screw pitch of the compression section 312 is smaller than that of the feeding section 311 and that of the plasticizing section. In the scheme, the starting position and the end position of the thread of the screw 31 are reasonably controlled, and the thread pitches of the compression section 312 are controlled to be smaller than those of the feeding section 311 and the plasticizing section 313, so that the injection molding machine can be suitable for most rubber materials, and the application range of the injection molding machine assembly is widened; a check ring 302 for preventing the glue from flowing backwards is arranged in the charging barrel 30, so that the quality of the injection molding piece is ensured, and a plasticizing section 313 of the screw 31 is movably arranged in the check ring 302 in a penetrating way.

A first driving device 4 and a second driving device 5 which are arranged on the base 1; the first driving device 4 is used for driving the screw 31 to move back and forth, and the second driving device 5 is used for driving the screw 31 to rotate. The action with the rotation of screw rod 31 and removal is separated, rotates and removes the mutual noninterference of action, prevents to appear controlling the disorderly condition, and compares in single cylinder drive formula and penetrates a platform assembly, and the structure of double-cylinder drive formula is simpler, and later stage dismouting is more convenient with the maintenance, and the maintenance cost is lower.

Preferably, an adjusting mechanism 33 for controlling the opening and closing of the nozzle 32 is arranged on the nozzle 32; the adjusting structure 33 comprises a thimble 331 and a nozzle lock 332 for driving the thimble 331; the nozzle lock 332 is connected with the thimble 331; the nozzle 32 is provided with an ejector pin hole 321 along the radial direction thereof, the ejector pin 331 penetrates through the ejector pin hole 321, and the ejector pin 331 can move along the axial direction of the ejector pin hole 321; the thimble 331 is provided with a material guiding hole 3311, the nozzle lock 332 can drive the material guiding hole 3311 to communicate with the nozzle 32, and the nozzle lock 332 can drive the thimble 331 to block the nozzle 32. During early stock storage, the nozzle 32 is closed to prevent the rubber from flowing out of the nozzle 32; after the material storage is finished, the nozzle 32 is conducted, so that the rubber material can be smoothly injected into the die, and the operation is convenient; specifically, the guiding hole 3311 has a larger cross-sectional area near the barrel 30 and a smaller cross-sectional area at the end far from the barrel 30, so as to ensure that the rubber material can be ejected from the nozzle at a high speed.

Wherein, plasticizing device 3 is still including nozzle heating circle 34, cooling jacket 35 and a plurality of feed cylinder heating circle 36, nozzle heating circle 34 cover is established on the nozzle 32, cooling jacket 35 with feed cylinder heating circle 36 is all established on the feed cylinder 30, and cooling jacket 35 is in the one end of keeping away from nozzle 32. A cooling sleeve 35 is arranged at a position of the charging barrel 30 close to the first feeding hole 301, so that the glue material at the initial section of the material groove 300 is prevented from melting and blocking at the front end, and the subsequent glue material cannot smoothly flow into the material groove 300 at the rear end; the charging barrel 30 is uniformly sleeved with a plurality of charging barrel heating rings 36, the end cover heating rings 72 are arranged on the charging barrel end cover 71, and the nozzle heating rings 34 are sleeved on the nozzle 32, so that the uniform heating of each stage of the sizing material is ensured, the cold material and overheating conditions are prevented, and the high injection efficiency and the good injection effect are ensured. Further, on one hand, the rubber material is sheared and rubbed by the rotation of the screw 31 to generate heat when being melted; on the other hand, the heating ring 36 of the charging barrel can transfer heat to the position of the sizing material, so that the plasticizing efficiency of the sizing material is improved, and a stable temperature field is provided.

Specifically, a first feed port 301 is arranged on the charging barrel 30, and a second feed port 21 is arranged on the injection frame 2; the first feed inlet 301 is communicated with the second feed inlet 21 and is coaxially arranged. The section of the second feed port 21 is gradually reduced from top to bottom; the section of the lowest end of the second feeding hole 21 is smaller than that of the first feeding hole 301, so that the rubber material can smoothly flow into the material groove 300 conveniently; further, the shooting table assembly further comprises a signal sending block 60 and a signal sending device 62, which are used for controlling the rotating speed of the first driving device 4; the screw rod pressing cover 63 is used for assisting the fixation of the screw rod 31; a transmission shaft 64 for connection between the second driving device 5 and the screw 31; the injection rack is characterized by further comprising a fixed seat 65, the injection rack 2 is arranged on the fixed seat 65, and the fixed seat 65 is arranged on the base 1; and further comprises a adjusting sheet 66, a guide rod mounting plate 67 for mounting the guide rod 11, a limiting sleeve 68 and an electric ruler connecting frame 69.

The rotation and the movement of the screw rod of the double-cylinder type injection platform assembly are respectively transmitted through the first driving device and the second driving device, so that the injection platform assembly is simple and convenient to maintain, and the maintenance cost is low; and the situation of program control confusion is not easy to occur. The plasticizing device is suitable for various sizing materials, and has wide application range; the plasticizing device has high working efficiency; the heating control of the plasticizing device is reasonable, the temperature field is balanced, the temperature control is stable, and the injection effect is good.

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

Claims

1. The utility model provides a platform assembly is penetrated to double-cylinder formula of notes draw blowing make-up machine which characterized in that, including:

2. The dual-cylinder injection molding machine assembly of claim 1 wherein the base has two parallel rails, and the injection frame has two slides respectively mounted on the rails.

3. The dual-cylinder injection molding machine assembly of claim 2 wherein the base is provided with guide rods parallel to the guide rails and cylinders for driving the injection racks to slide.

4. The dual-cylinder injection stand assembly of an injection stretch blow molding machine according to claim 1, wherein said nozzle is provided with an adjustment mechanism for controlling the opening and closing of said nozzle;

the adjusting mechanism comprises an ejector pin and a nozzle lock for driving the ejector pin; the nozzle lock is connected with the ejector pin; the nozzle is provided with an ejector pin hole along the radial direction, the ejector pin penetrates through the ejector pin hole, and the ejector pin can move along the axial direction of the ejector pin hole; the thimble is provided with a material guide hole.

5. The dual-cylinder injection platen assembly of an injection stretch blow molding machine as claimed in claim 4, wherein said nozzle lock actuates said pilot hole to communicate with said nozzle and said ejector pin to block said nozzle.

6. The assembly of claim 4, wherein the plasticizing unit further comprises a nozzle heating ring, a cooling jacket and a plurality of barrel heating rings, the nozzle heating ring is sleeved on the nozzle, the cooling jacket and the barrel heating ring are both sleeved on the barrel, and the cooling jacket is located at an end away from the nozzle.

7. The dual-cylinder injection molding machine assembly of claim 1, wherein the barrel is provided with a first feed port, and the injection frame is provided with a second feed port; the first feed inlet and the second feed inlet are communicated and coaxially arranged.

8. The dual-cylinder injection stand assembly of an injection stretch blow molding machine according to claim 7, wherein the second feed port is from top to bottom and has a gradually decreasing cross-section; and the section of the lowest end of the second feed port is smaller than that of the first feed port.

9. The dual-cylinder injection molding machine assembly of claim 1 wherein the screw is a split screw comprising a charging section, a compression section and a plasticizing section connected in sequence, and wherein the pitch of the compression section is less than the pitch of the charging section and the pitch of the plasticizing section.

10. The dual-cylinder injection stand assembly of an injection stretch blow molding machine according to claim 9, wherein a check ring is provided in the barrel for preventing the flow of the gum material, and a plasticizing segment of the screw is movably inserted in the check ring.