CN215242440U

CN215242440U - Screw rod charging barrel of injection molding machine

Info

Publication number: CN215242440U
Application number: CN202121315341.XU
Authority: CN
Inventors: 姚珊
Original assignee: Zhoushan Zhinai Plastic Machinery Co ltd
Current assignee: Zhoushan Zhinai Plastic Machinery Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-12-21
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses an injection molding machine screw rod feed cylinder, including the barrel body, the barrel body internal rotation is provided with the screw rod body, and the injection head of screw rod body tail end is located outside the barrel body, the tabling groove has been seted up at the upper portion position to the barrel body inner wall, and the tabling groove is seted up along barrel body length direction and is run through barrel body tail end one side, and the barrel body is provided with a plurality of washing water holes along tabling groove length extending direction above the tabling groove, is provided with the sealing plug in the washing water hole, and the accurate gomphosis in tabling groove has the tabling board, and the tabling board inboard is provided with the interior cambered surface that is used for forming circular structure with the barrel body inner wall, and the width of the tabling inboard sets up to be less than the outside width in order to prevent to drop from the tabling groove; the tail end of the machine barrel body is provided with a cleaning and sealing head in a matched mode, the section of the cleaning and sealing head on one side of the machine barrel body completely covers the embedded groove and is used for limiting the embedded plate to move, and one side of the machine barrel body is provided with a groove matched with the injection head.

Description

Screw rod charging barrel of injection molding machine

Technical Field

The utility model relates to a barrel screw rod technical field, in particular to injection molding machine screw rod feed cylinder.

Background

An injection molding machine is also known as an injection molding machine or an injection machine, and is main molding equipment for manufacturing thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die, and is divided into a vertical type, a horizontal type and a full-electric type; the injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

However, the existing screw charging barrel has certain defects, the traditional screw charging barrel is inconvenient to clean, and the screw edges of the screw and the residual raw materials between the outer wall of the screw and the inner wall of the outer barrel are difficult to clean; among the prior art, a novel screw rod feed cylinder (patent number is ZL202021274262.4) is disclosed, it sets up the water filling hole at feed cylinder outward appearance wall and the side that is located the charge door, the supporting sealing plug in inside in water filling hole, through addding water filling hole and sealing plug, when not needing to wash, the water filling hole is stopped up to the sealing plug, avoid the raw materials outflow when using, when needs wash this screw rod feed cylinder, take off the sealing plug, will wash water and pour into from the water filling hole, the rotation of screw rod in the complex feed cylinder, can effectively with on the screw rod with the feed cylinder in remaining raw materials sanitization.

In order to be convenient to clean, only one single water filling hole is arranged on one side of the feeding opening, the cleaning effect is mainly realized by the rotation of the screw rod, so that the stirring effect is generated between the screw rod and water, but the position of the residual raw material adhered to the screw rod is generally positioned in the latter half section of melting homogenization, the cleaning effect of the water filling hole is poor, the end part of the sealing plug can be in direct contact with the material on the inner wall of the machine barrel, and the condition that the sealing plug is abraded or the material is blocked by the water filling opening can occur because the head end of the machine barrel is mainly granular material; in addition, when the charging barrel is cleaned, the injection mechanism is generally connected to the tail end of the charging barrel of the injection molding machine, and if the injection mechanism is still connected for cleaning, the damage of the injection mechanism or the blockage of an injection channel is easily caused, but the injection mechanism is not connected, the tail end of the charging barrel is in an open state, and under the condition that water is discharged while water is added, the cleaning effect is poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an injection molding machine screw rod feed cylinder can improve screw rod barrel cleaning performance.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a screw charging barrel of an injection molding machine comprises a barrel body, wherein a screw body is rotatably arranged in the barrel body, an injection head at the tail end of the screw body is positioned outside the barrel body, an embedding groove is formed in the upper position of the inner wall of the barrel body, the embedding groove is formed in the length direction of the barrel body and penetrates through one side of the tail end of the barrel body, a plurality of cleaning water holes are formed in the barrel body above the embedding groove along the length extension direction of the embedding groove, a sealing plug is arranged in each cleaning water hole, an embedding plate is precisely embedded in the embedding groove, an inner arc surface for forming a circular structure with the inner wall of the barrel body is arranged on the inner side of the embedding plate, and the width of the inner side of the embedding plate is smaller than the width of the outer side so as to prevent the embedding plate from falling from the embedding groove; the tail end of the machine barrel body is provided with a cleaning and sealing head in a matched mode, the section of the cleaning and sealing head on one side of the machine barrel body completely covers the embedded groove and is used for limiting the embedded plate to move, and one side of the machine barrel body is provided with a groove matched with the injection head.

Preferably, the outer side of the embedded plate is provided with an outer arc surface concentric with the inner arc surface, and the radius lines from the outer arc surface and the inner arc surface to the center of the cylinder body coincide.

More preferably, the central symmetry line of the fitting plate is positioned in the vertical direction, the axial line of the cleaning water hole coincides with the central symmetry line of the fitting plate, and the diameter of the cleaning water hole is not more than the width of the intrados in the horizontal direction.

Preferably, the tail end of the machine barrel body is provided with a ring groove coaxial with the tail end of the machine barrel body, and the ring groove is internally threaded with a tightening ring for limiting the horizontal movement of the embedded plate.

Further preferably, the tail end of the cleaning and closing head is provided with a drainage valve communicated with the slot.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

the embedded groove is arranged at the top end inside the machine barrel body, the embedded plate is precisely matched with the embedded groove, the cleaning water hole is arranged at the top end of the machine barrel body and is communicated with the embedded groove, namely communicated with the inside of the machine barrel body, so that the cleaning effect of the inside of the machine barrel body and the cleaning effect of the screw body can be realized by matching the rotation of the screw body in the machine barrel body, the embedded groove and the embedded plate are arranged, the integrity of the cylindrical inner wall of the machine barrel body can be ensured, the abrasion of a sealing plug and the blockage of the cleaning water hole can be avoided, and a plurality of cleaning water holes are arranged along the length direction of the machine barrel body, so that the rear sides of the screw body and the machine barrel body can be cleaned in an enhanced manner, and the cleaning effect is improved;

use in barrel body afterbody cooperation and have the washing sealing head, from this when needs wash, dismantle original injection mechanism, install and wash the sealing head and can seal barrel body afterbody, guarantee the inside cleaning performance of barrel body, when needing the drainage to carry out the secondary clearance, the demand of drainage can be satisfied to the drainage valve, in whole cleaning process, need not dismantle barrel body and screw rod body, the gomphosis board also can be dismantled, compare in dismantling the screw rod body and clear up alone screw rod body and barrel body, the cleaning efficiency has been improved greatly in the clearance mode of this kind of barrel.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a sectional view of the barrel body in the example.

Reference numerals: 1. a barrel body; 2. a screw body; 3. an injection head; 4. cleaning the sealing head; 5. grooving; 6. a drain valve; 7. a fitting groove; 8. cleaning water holes; 9. a sealing plug; 10. a tabling plate; 11. an intrados surface; 12. an outer arc surface; 13. a ring groove; 14. and (6) a supporting ring.

Detailed Description

The following provides a more detailed description of the present invention with reference to the accompanying drawings.

The utility model provides an injection molding machine screw rod feed cylinder, refer to fig. 1 and show, including barrel body 1, the internal rotation of barrel body 1 is provided with screw rod body 2, the injection head 3 of 2 tail ends of screw rod body is located outside barrel body 1, 1 afterbody of barrel body is furnished with injection mechanism, for better cleaning efficiency with avoid the damage of injection mechanism, 1 afterbody of barrel body is provided with for the cleaning process is supporting washs closed head 4, wash closed head 4 and 1 afterbody of barrel body and pass through modes such as ring flange can dismantle the connection, and wash closed head 4 and set up the fluting 5 with 3 looks adaptations of injection head in barrel body 1 one side.

Referring to fig. 1 and 2, an embedding groove 7 is formed in an upper portion of an inner wall of the cylinder body 1, the embedding groove 7 is formed along a length direction of the cylinder body 1 and penetrates through one side of a tail end of the cylinder body 1, a plurality of cleaning water holes 8 are formed in the cylinder body 1 above the embedding groove 7 along a length extending direction of the embedding groove 7, the cleaning water holes 8 are communicated with the embedding groove 7 to achieve communication with the inside of the cylinder body 1, and a sealing plug 9 is arranged in each cleaning water hole 8.

In order to ensure the integrity of the cylindrical inner wall of the machine barrel body 1, an embedded plate 10 is precisely embedded in the embedded groove 7, an inner arc surface 11 for forming a circular structure with the inner wall of the machine barrel body 1 is arranged on the inner side of the embedded plate 10, the width of the inner side of the embedded plate 10 is set to be smaller than that of the outer side so as to prevent the embedded plate 7 from falling off, it is worth explaining that the cleaning and closing head 4 completely covers the embedded groove 7 on one side of the cross section of the machine barrel body 1 for limiting the movement of the embedded plate 10, and a drain valve 6 communicated with the open groove 5 is arranged at the tail end of the cleaning and closing head 4.

The surface of the embedded groove 7 and the surface of the embedded plate 10 are only located at the upper part of the machine barrel body 1, for better cleaning effect, the embedded groove 7 and the embedded plate 10 are further optimally designed, specifically, an outer arc surface 12 which is concentric with the inner arc surface 11 is arranged on the outer side of the embedded plate 10, the radius lines from the outer arc surface 12 and the inner arc surface 11 to the center of the machine barrel body 1 are overlapped, the central symmetry line of the embedded plate 10 is located in the vertical direction, the axial line of the cleaning water hole 8 is overlapped with the central symmetry line of the embedded plate 10, and the diameter of the cleaning water hole 8 is smaller than or equal to the width of the inner arc surface 11 in the horizontal direction.

The horizontal limiting function of the embedded plate 10 is only the abutting function of cleaning the sealing head 4, the structure has certain precision requirement on the installation and cleaning of the sealing head 4, therefore, in order to reduce the installation difficulty, the tail end of the machine barrel body 1 is provided with a ring groove 13 which is coaxial with the machine barrel body 1, the ring groove 13 is internally connected with an abutting ring 14 used for limiting the horizontal movement of the embedded plate 10, and the abutting ring 14 is only provided with threads in half width.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. A screw charging barrel of an injection molding machine comprises a barrel body, wherein a screw body is rotatably arranged in the barrel body, and an injection head at the tail end of the screw body is positioned outside the barrel body; the tail end of the machine barrel body is provided with a cleaning and sealing head in a matched mode, the section of the cleaning and sealing head on one side of the machine barrel body completely covers the embedded groove and is used for limiting the embedded plate to move, and one side of the machine barrel body is provided with a groove matched with the injection head.

2. The screw charging barrel of an injection molding machine according to claim 1, wherein an outer arc surface concentric with the inner arc surface is arranged outside the embedded plate, and the radius lines from the outer arc surface and the inner arc surface to the center of the barrel body coincide.

3. The screw barrel of an injection molding machine according to claim 2, wherein the central symmetry line of the fitting plate is located in a vertical direction, the axis line of the washing water hole coincides with the central symmetry line of the fitting plate, and the diameter of the washing water hole is equal to or less than the width of the intrados surface in a horizontal direction.

4. The screw charging barrel of an injection molding machine according to claim 1, wherein a ring groove coaxial with the barrel body is formed at the tail end of the barrel body, and a butting ring for limiting the horizontal movement of the embedded plate is connected in the ring groove in a threaded manner.

5. The screw barrel of an injection molding machine according to claim 1, wherein the trailing end of the purge closing head is provided with a drain valve in communication with the slot.