CN215791277U

CN215791277U - Injection molding machine injection advances all over out structure

Info

Publication number: CN215791277U
Application number: CN202121673273.4U
Authority: CN
Inventors: 张剑
Original assignee: Dongguan Kesheng Intelligent Equipment Technology Co ltd
Current assignee: Dongguan Kesheng Intelligent Equipment Technology Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-02-11
Anticipated expiration: 2031-07-21

Abstract

The utility model relates to the technical field of plastic production equipment, in particular to an injection full-in and full-out structure of an injection molding machine, which comprises a machine body, a feeding barrel arranged on the machine body, a feeding screw rod rotatably arranged in the feeding barrel, and an injection barrel arranged on the machine body, wherein the discharging end of the feeding barrel is communicated with the feeding end of the injection barrel, a driving piece used for driving the feeding barrel to be close to or far away from the injection barrel is arranged on the machine body, and a moving piece used for driving the injection barrel to be close to or far away from the feeding barrel is arranged on the machine body. The utility model has the effect of making the product not easy to generate black spots.

Description

Injection molding machine injection advances all over out structure

Technical Field

The utility model relates to the technical field of plastic production equipment, in particular to an injection full-in full-out structure of an injection molding machine.

Background

Silica gel was first synthesized in the united states using ferric chloride as a catalyst. In 1945, silica gel products were produced. In 1948, the silica gel reinforced by fumed silica with high specific surface area is successfully developed, so that the performance of the silica gel is improved to a practical stage, and the foundation of modern silica gel production technology is laid. The countries that produce silica gel starting from the synthesis of dimethyldichlorosilane have the united states. Russia, germany, japan, korea, china, and the like. The industrial research of silica gel in China began in 1957, and various silica gels were developed by various research institutes and enterprises in succession.

The silica gel has good fluidity and is very beneficial to injection molding, and the existing silica gel products are generally made by using an injection molding machine, such as a horizontal first-in last-out injection molding machine and a horizontal first-in first-out injection molding machine; the injection principle of the injection machine is basically consistent, the rubber enters the injection charging barrel from the feeding screw, then enters the mold, and the rubber mold is cured and molded to obtain the product. However, in the production process of the current injection machine, the product is easy to have black spots, so that the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides an injection full-in full-out structure of an injection molding machine aiming at solving the technical problems in the prior art.

The utility model provides a full-in and full-out structure of an injection machine, which adopts the following technical scheme:

the utility model provides an injection molding machine injects and advances structure entirely, includes the organism, set up in go into the feed cylinder on the organism, rotate set up in go into the pan feeding screw rod in the feed cylinder and set up in the injection feed cylinder on the organism, the discharge end of going into the feed cylinder with the feed end of injection feed cylinder is linked together, be provided with on the organism and be used for the drive the pan feeding section of thick bamboo is close to or keeps away from the driving piece of injection feed cylinder, be provided with on the organism and be used for the drive the injection feed cylinder is close to or keeps away from the moving member of going into the feed cylinder.

Preferably, the driving member includes a first hydraulic cylinder disposed on the machine body, and a piston rod of the first hydraulic cylinder is fixedly connected to the charging barrel.

Preferably, the moving member includes a second hydraulic cylinder disposed on the body, and a piston rod of the second hydraulic cylinder is fixedly connected to the injection cylinder.

Preferably, the discharging end of the feeding barrel is provided with an injection block, the injection block is provided with a runner for supplying the rubber to flow out of the feeding barrel, the feeding end of the injection barrel is provided with a nozzle, the nozzle is provided with a pouring channel for supplying the rubber to be injected into the injection barrel, the nozzle is abutted against the injection block, and the runner is communicated with the pouring channel.

Preferably, the injection block is arranged in a circular arc manner at one end close to the injection nozzle, an inner concave surface is arranged at one end of the injection nozzle facing the injection block, and the circular arc end of the injection nozzle is matched with the inner concave surface.

Preferably, the injection block is in threaded connection with the end part of the charging barrel through a bolt.

Preferably, an injection rod for pushing materials is inserted into the injection material barrel in a sliding mode, an injection oil cylinder is arranged on the machine body and is used for driving the injection rod to move in the injection material barrel.

In summary, the utility model includes at least one of the following beneficial technical effects:

1. the feeding motor rotates to drive the feeding screw to rotate, the feeding screw conveys rubber materials in the feeding barrel into the injection barrel, after the rubber materials are conveyed, the second hydraulic cylinder drives the injection barrel to move upwards, meanwhile, the first hydraulic cylinder drives the feeding barrel to move towards the direction far away from the injection barrel, so that the injection barrel is separated from the feeding barrel, then, the second hydraulic cylinder drives the injection barrel to move downwards, so that the nozzle is connected with the mold, then, the injection cylinder drives the injection rod to move downwards, the rubber materials in the injection barrel are injected into the mold, and therefore the rubber materials completely enter the mold, and no black point can be generated at the position of the check valve without the existence of the check valve; the injection structure is a vertical structure, the injection rod is vertical without eccentric force, the situation of deflection and friction cannot be generated in the injection process, and black spots are not easy to generate due to friction.

2. And because the existing machine has the structural defect of the check valve, certain rubber material can be returned in each injection process, the amount of the returned rubber material is basically the same, but if the injection speed, the injection pressure and the temperature of the rubber material are changed, the amount of the returned rubber material is different, so that people often find that a mold lacks or has more rubber material when the mold is changed or the temperature is changed.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the present invention with the feed barrel separated from the injection barrel.

Fig. 3 is an enlarged schematic view of a portion a of fig. 1.

In the figure: 1. a body; 11. a first hydraulic cylinder; 12. a second hydraulic cylinder; 2. feeding into a charging barrel; 21. feeding a screw rod; 22. a material injection block; 221. a flow channel; 222. a bolt; 23. a feeding motor; 3. an injection cartridge; 31. shooting mouth; 311. a pouring channel; 32. an injection rod; 33. and (4) injecting an oil cylinder.

Detailed Description

The present invention is described in further detail below with reference to figures 1-3.

The existing injection molding machine is generally provided with a check valve at the discharge end of a feeding screw, the check valve has the function that when the feeding screw rotates, the feeding screw inputs rubber into an injection charging barrel without being blocked, but the check valve can seal the rubber when injection occurs, so that the rubber is prevented from flowing back to the feeding screw; however, some rubber materials are always accumulated at the discharge end of the check valve at the periphery of the check valve, and when the rubber materials are subjected to feeding action and injection action, the rubber materials cannot flow, and can age after a long time, so that black spots are easily formed.

The embodiment of the utility model discloses an injection full-in and full-out structure of an injection molding machine, which comprises a machine body 1, a feeding barrel 2 arranged on the machine body 1 in a sliding manner, and a feeding screw 21 arranged in the feeding barrel 2, wherein the feeding barrel 2 is arranged along the horizontal direction, the feeding screw 21 and the feeding barrel 2 are coaxially arranged, one end of the feeding screw 21 is rotatably borne on the inner wall of the feeding barrel 2, a feeding motor 23 is fixedly arranged on the outer wall of the feeding barrel 2, the feeding motor 23 and the feeding barrel 2 are coaxially arranged, an output shaft of the feeding motor 23 is fixedly connected with the end face of the feeding screw 21, and one end, far away from the feeding motor 23, of the feeding barrel 2 is arranged in an opening manner and is a discharging end.

Referring to fig. 1 and 3, an injection cylinder 3 is slidably arranged on a machine body 1, the injection cylinder 3 is arranged along a vertical direction, an injection rod 32 for pushing materials is inserted and matched in the injection cylinder 3, the injection rod 32 and the injection cylinder 3 are coaxially arranged, an injection oil cylinder 33 is fixedly installed at the top of the injection cylinder 3 along the vertical direction, the injection oil cylinder 33 is located right above the injection cylinder 3, the top and the bottom of the injection cylinder 3 are arranged in an opening mode, the bottom of the injection cylinder 3 is a feeding end, a piston rod of the injection oil cylinder 33 is coaxially and fixedly connected to the top end of the injection rod 32, and the piston rod of the injection oil cylinder 33 stretches and retracts, so that the injection rod 32 is driven to move up and down in the injection cylinder 3. And the bottom ends of the injection cylinder 3 and the injection rod 32 are arranged in a conical shape, so that the rubber in the injection cylinder 3 can be better extruded.

Referring to fig. 1 and 3, the charging barrel 2 abuts against the end of the injection barrel 3, the discharging end of the charging barrel 2 is communicated with the feeding end of the injection barrel 3, in addition, the discharging end of the charging barrel 2 is provided with an injection block 22, the injection block 22 is provided with a flow channel 221 for feeding rubber material in the charging barrel 2 to flow out, one end of the flow channel 221 is communicated with the inside of the charging barrel 2, and the other end of the flow channel 221 penetrates through the upper surface of the injection block 22; the injection nozzle 31 is fixedly installed at the feeding end of the injection cylinder 3, the injection nozzle 31 is provided with a pouring gate 311 for injecting the glue into the injection cylinder 3, the pouring gate 311 runs through the upper end and the lower end of the injection nozzle 31, the top end of the pouring gate 311 is communicated with the injection cylinder 3, the injection nozzle 31 is abutted against the upper surface of the injection block 22, and the pouring gate 311 is communicated with the flow channel 221. When the inlet cylinder 2 needs to deliver the rubber compound to the injection cylinder 3, the rubber compound flows from the flow channel 221 of the injection block 22 into the nozzle 31 and then into the injection cylinder 3. Meanwhile, the bottom end of the nozzle 31 is arranged in an arc shape, the top of the injection block 22 is provided with an inner concave surface, and the arc end of the nozzle 31 is matched with the inner concave surface; when the feed cylinder 2 is in butt joint with the injection cylinder 3, the arc end of the nozzle 31 is abutted against the concave surface in the injection block 22, so that the butt joint of the feed cylinder 2 and the injection cylinder 3 is more accurate. In addition, in order to replace the injection block 22 conveniently, the injection block 22 is in threaded connection with the end of the feeding barrel 2 through the bolt 222, and an operator only needs to unscrew the bolt 222 to detach the injection block 22, so that the injection block 22 is cleaned or replaced.

Referring to fig. 1 and 2, a driving member for driving the material inlet barrel 2 to move in the horizontal direction is disposed on the machine body 1, specifically, the driving member includes a first hydraulic cylinder 11 fixedly mounted on the machine body 1, the first hydraulic cylinder 11 is parallel to the material inlet barrel 2, and a piston rod of the first hydraulic cylinder 11 is fixedly connected to the material inlet barrel 2. Be provided with the moving member that is used for driving injection feed cylinder 3 to go up and down along vertical direction on the organism 1, specifically, the moving member includes along vertical direction fixed mounting the second pneumatic cylinder 12 on organism 1, the piston rod fixed connection of second pneumatic cylinder 12 in injection feed cylinder 3. A mold (not shown) is mounted on the machine body 1, the mold is located right below the injection cylinder 3, and the second hydraulic cylinder 12 drives the injection cylinder 3 to move downwards, so that the glue is injected into the mold.

The implementation principle of the injection full-in full-out structure of the injection molding machine provided by the embodiment of the utility model is as follows: the feeding motor 23 rotates to drive the feeding screw 21 to rotate, the feeding screw 21 conveys the rubber material in the feeding barrel 2 into the injection barrel 3, after the conveying of the rubber material is finished, the second hydraulic cylinder 12 drives the injection barrel 3 to move upwards, meanwhile, the first hydraulic cylinder 11 drives the feeding barrel 2 to move towards the direction far away from the injection barrel 3, so that the injection barrel 3 is separated from the feeding barrel 2, then, the second hydraulic cylinder 12 drives the injection barrel 3 to move downwards, so that the nozzle 31 is connected with the mold, then, the injection cylinder 33 drives the injection rod 32 to move downwards, the rubber material in the injection barrel 3 is injected into the mold, so that the rubber material completely enters the mold, and no check valve exists, and no black point is generated at the position of the check valve; and because the existing machine has the structural defect of the check valve, certain sizing material can be returned in each injection process, the amount of the returned sizing material is basically the same, but if the injection speed, the pressure and the temperature of the sizing material are changed, the amount of the returned sizing material is different, so that people often find that a mould lacks or has more sizing material when changing the mould or changing the temperature, and because the check valve is removed, the injection precision can be improved at the same time, and the precision can reach plus or minus 0.01 gram; and this injection structure is vertical structure, and injection pole 32 is vertical direction and does not have the eccentric force, can not produce the condition of leaning towards friction in the injection process, is difficult for producing the black spot because of the friction reason.

Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. An injection molding machine injects the structure of going into all over, characterized by that: including organism (1), set up in go into feed cylinder (2), rotation on the organism (1) set up in go into pan feeding screw rod (21) in feed cylinder (2) and set up in injection feed cylinder (3) on the organism (1), the discharge end of going into feed cylinder (2) with the feed end of injection feed cylinder (3) is linked together, be provided with on the organism (1) and be used for the drive it is close to or keeps away from to go into feed cylinder (2) the driving piece of injection feed cylinder (3), be provided with on the organism (1) and be used for the drive injection feed cylinder (3) are close to or keep away from the moving member of going into feed cylinder (2).

2. The injection molding machine injection full-in full-out structure as claimed in claim 1, wherein: the driving piece comprises a first hydraulic cylinder (11) arranged on the machine body (1), and a piston rod of the first hydraulic cylinder (11) is fixedly connected to the charging barrel (2).

3. The injection molding machine injection full-in full-out structure as claimed in claim 1, wherein: the moving member comprises a second hydraulic cylinder (12) arranged on the machine body (1), and a piston rod of the second hydraulic cylinder (12) is fixedly connected to the injection charging barrel (3).

4. The injection molding machine injection full-in full-out structure as claimed in claim 1, wherein: go into the discharge end of feed cylinder (2) and be provided with injection piece (22), injection piece (22) are provided with and are used for the confession go into runner (221) that sizing material flowed out in feed cylinder (2), the pan feeding end of injection feed cylinder (3) is provided with penetrates mouth (31), it sets up runner (311) that is used for supplying sizing material to inject injection feed cylinder (3) to penetrate mouth (31), penetrate mouth (31) with injection piece (22) looks butt, runner (221) with runner (311) are linked together.

5. The injection molding machine injection all-in all-out structure according to claim 4, wherein: penetrate mouth (31) be close to in the one end of injection piece (22) is the circular arc setting, injection piece (22) towards in one side of penetrating mouth (31) is provided with interior concave surface, the circular arc end of penetrating mouth (31) with interior concave surface looks adaptation.

6. The injection molding machine injection all-in all-out structure according to claim 4, wherein: the injection block (22) and the end part of the charging barrel (2) are in threaded connection with a bolt (222).

7. The injection molding machine injection full-in full-out structure as claimed in claim 1, wherein: an injection rod (32) for pushing materials is inserted into the injection material barrel (3) in a sliding mode, an injection oil cylinder (33) is arranged on the injection material barrel (3), and the injection oil cylinder (33) is used for driving the injection rod (32) to move in the injection material barrel (3).