CN221089884U

CN221089884U - Backpressure metering structure

Info

Publication number: CN221089884U
Application number: CN202322765259.2U
Authority: CN
Inventors: 李政霖; 孟雷
Original assignee: Suzhou Enzhuoer Precision Machinery Co ltd
Current assignee: Suzhou Enzhuoer Precision Machinery Co ltd
Priority date: 2023-10-16
Filing date: 2023-10-16
Publication date: 2024-06-07
Anticipated expiration: 2033-10-16

Abstract

The utility model discloses a back pressure metering structure which comprises a moving plate, a shooting plate and a material pipe, wherein a screw rod penetrates through the middle part of the moving plate, a force guide block penetrates through the middle part of the shooting plate, the screw rod is arranged in the material pipe, the upper end of the screw rod is provided with a rotary shaft, meanwhile, the outer ring of the rotary shaft is provided with a gear, the upper side of the rotary shaft is provided with the force guide block, the outer ring of the upper end of the force guide block is provided with a pressure sensor, a fixing nut is arranged between the pressure sensor and the force guide block, and the screw rod, the rotary shaft, the force guide block and the pressure sensor are sequentially and directly connected.

Description

Backpressure metering structure

Technical Field

The utility model relates to the technical field of injection molding machines, in particular to a back pressure metering structure.

Background

The back pressure metering structure is a device for metering the interaction force of a screw rod and plastic particle slurry in the injection molding process of an injection molding machine, and the existing back pressure metering structure is used for indirectly connecting a pressure sensor with a force guide block, a rotating shaft and the screw rod through a jet platen, so that data output by the pressure sensor are not accurate enough, the back pressure precision of storage materials and the jet stability are poor, and the existing equipment is required to be improved aiming at the problems.

Disclosure of utility model

The utility model aims to provide a back pressure metering structure, which solves the problems of poor back pressure precision and injection stability of storage materials caused by inaccurate output data of the existing pressure sensor in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a backpressure measurement structure, includes the movable plate, shoots platen and material pipe, the middle part of movable plate runs through there is the screw rod, it has the guide block to run through at the middle part of platen to shoot, the inside screw rod that is provided with of material pipe, and the upper end of screw rod is provided with the revolving axle, and the outer lane of revolving axle is provided with the gear simultaneously, the top of revolving axle is provided with the guide block, and installs pressure sensor in the upper end outer lane of guide block, be provided with fixation nut between pressure sensor and the guide block.

Preferably, the screw and the rotating shaft are connected by a latch.

Preferably, a feed inlet is arranged on one side of the material pipe.

Preferably, the shooting plate and the pressure sensor are fixedly connected through bolts.

Compared with the prior art, the utility model has the beneficial effects that: this backpressure measurement structure with screw rod, swivel axis, guide force piece and pressure sensor direct connection in proper order for pressure sensor detects the effort from the screw rod more accurately, compares with traditional mode, can to a great extent improve storage backpressure precision and ejection stability, thereby can mould plastics more accurate product.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

Fig. 4 is a schematic view of the connection structure of the rotating shaft and the gear of the present utility model.

In the figure: 1. a moving plate; 2. a shooting plate; 3. a feed inlet; 4. a material injection pipe; 5. a screw; 6. a rotating shaft; 7. a plug pin; 8. a gear; 9. a fixing nut; 10. a pressure sensor; 11 force guide blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a backpressure measurement structure, removes board 1, penetrates platen 2, feed inlet 3, material pipe 4, screw rod 5, revolving axle 6, bolt 7, gear 8, fixation nut 9, pressure sensor 10 and guide block 11, the middle part of removing board 1 runs through and has screw rod 5, the middle part of penetrating platen 2 has guide block 11, the inside screw rod 5 that is provided with of material pipe 4, and the upper end of screw rod 5 is provided with revolving axle 6, and the outer lane of revolving axle 6 is provided with gear 8 simultaneously, the top of revolving axle 6 is provided with guide block 11, and pressure sensor 10 is installed to guide block 11's upper end outer lane, be provided with fixation nut 9 between pressure sensor 10 and the guide block 11.

The screw 5 and the rotating shaft 6 are connected through the bolt 7, so that the screw 5 and the rotating shaft 6 are convenient to install and fix.

One side of the material pipe 4 is provided with a feed inlet 3, so that plastic particles can directly enter the material pipe 4 from the feed inlet.

The injection platen 2 and the pressure sensor 10 are fixedly connected through bolts, so that the injection platen 2 and the pressure sensor 10 are conveniently installed and fixed.

Working principle: when the back pressure metering structure works, the injection molding machine is started, plastic particles enter from the feed inlet 3, then the plastic particles enter the feed pipe 4 under the action of gravity, meanwhile, the injection molding machine motor drives the rotating gear 8 to drive the screw 5 to rotate, so that the plastic particles are downwards conveyed, at the moment, the plastic particles can also give an upward reaction force to the screw 5, the screw 5 transmits the reaction force to the pressure sensor 10 through the rotating shaft 6 and the force guide block 11, then the pressure sensor 10 can measure the acting force of the plastic particles to the screw 5, so that the back pressure precision and the injection stability of the storage materials can be greatly improved, more precise products can be injected, the whole work is completed, and the content which is not described in detail in the specification belongs to the prior art known to the person skilled in the art.

The terms "center," "longitudinal," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for descriptive simplicity and convenience only and not as an indication or implying that the apparatus or element being referred to must have a particular orientation, be constructed and operated for a particular orientation, based on the orientation or positional relationship illustrated in the drawings, and thus should not be construed as limiting the scope of the present utility model.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a backpressure measurement structure, includes movable plate (1), penetrating platen (2) and material pipe (4), its characterized in that: the middle part of movable plate (1) is run through and is had screw rod (5), the middle part of penetrating platen (2) is run through and is had guide block (11), the inside screw rod (5) that is provided with of material pipe (4), and the upper end of screw rod (5) is provided with swivel (6), and the outer lane of swivel (6) is provided with gear (8) simultaneously, the top of swivel (6) is provided with guide block (11), and guide block (11) upper end outer lane installs pressure sensor (10), be provided with fixation nut (9) between pressure sensor (10) and guide block (11).

2. The backpressure metering arrangement of claim 1, wherein: the screw (5) is connected with the rotary shaft (6) through a bolt (7).

3. The backpressure metering arrangement of claim 1, wherein: one side of the material pipe (4) is provided with a feeding hole (3).

4. The backpressure metering arrangement of claim 1, wherein: the injection table plate (2) and the pressure sensor (10) are fixedly connected through bolts.