CN212826525U - A dry hopper for injection molding machine - Google Patents

Abstract

The application relates to a drying hopper for an injection molding machine, belonging to the technical field of auxiliary components of the injection molding machine; the technical key points of the device comprise a hopper body, wherein the hopper body comprises a feeding chamber, a screening chamber, a drying chamber and a discharging chamber which are sequentially arranged along the direction of raw materials and are communicated; wherein, be equipped with the screening plant who is used for sieving out the large granule raw materials in the screening room, the drying chamber is used for carrying out the drying to the raw materials after sieving out the large granule. This application can improve the drying effect of dry hopper to the raw materials.

Description

A dry hopper for injection molding machine

Technical Field

The application relates to the technical field of auxiliary components of injection molding machines, in particular to a drying hopper for an injection molding machine.

Background

The injection molding machine is also called an injection molding machine or an injection machine, a beer machine is called in many factories, and an injection molding product is called a beer piece. It is a main forming equipment for making various shaped plastic products with thermoplastic plastics or thermosetting plastics by using plastic forming mould. The injection molding machine can be divided into a vertical type, a horizontal type and a vertical and horizontal type according to the arrangement mode of the injection device and the mold locking device.

When the injection molding machine is used, the raw materials are firstly dried, and how the drying effect of the raw materials directly influences the qualification rate of finished products of injection molding of the raw materials.

Wherein, the chinese utility model that the bulletin number is CN209381289U discloses a dry hopper for injection molding machine, include feeder hopper, feed cylinder and play hopper by last feeder hopper, feed cylinder and the setting gradually down. Wherein, be equipped with drying mechanism and vibrations screening mechanism in the feeder hopper, drying mechanism can carry out the drying to the raw materials that gets into in the feeder hopper, and vibrations screening mechanism sieves the raw materials after the drying, can get into the feed cylinder through the raw materials of vibrations screening mechanism in, the raw materials that are held back by vibrations screening mechanism then separates out from one side of feeder hopper, and the manual work is smashed the back and is added in the feeder hopper.

In view of the above-described related art, the inventors believe that when the raw material having a large particle size is mixed with the raw material having a small particle size due to the different particle sizes of the raw materials, the raw material having a large particle size easily affects the drying effect of the drying means on the raw material having a small particle size.

SUMMERY OF THE UTILITY MODEL

In order to improve the drying effect of dry hopper to the raw materials, this application provides a dry hopper for injection molding machine.

The application provides a dry hopper for injection molding machine adopts following technical scheme:

a drying hopper for an injection molding machine comprises a hopper body, wherein the hopper body comprises a feeding chamber, a screening chamber, a drying chamber and a discharging chamber which are sequentially arranged along the direction of raw materials and are communicated; wherein, be equipped with the screening plant who is used for sieving out the large granule raw materials in the screening room, the drying chamber is used for carrying out the drying to the raw materials after sieving out the large granule.

By adopting the technical scheme, the hopper body comprises the feeding chamber, the screening chamber, the drying chamber and the discharging chamber which are sequentially arranged along the raw material trend, the raw material enters from the feeding chamber, then the screening device in the screening chamber screens the raw material, after large-particle raw material is screened out, small-particle raw material meeting the requirement enters into the drying chamber, and the small-particle raw material meeting the requirement is dried by the drying chamber; because before the raw materials are dried, large-particle raw materials with large particle sizes are screened out, small-particle raw materials with small particle sizes can be in full contact with air in the drying chamber, and the drying effect of the drying hopper on the raw materials is improved.

Preferably, the screening device comprises a screening hopper, a screening net arranged in the screening hopper and a vibration mechanism for driving the screening hopper to vibrate; the screening hopper is provided with a fine material discharge port and a coarse material discharge port, the fine material discharge port is located below the screening net, the coarse material discharge port is located above the screening net, and the coarse material discharge port is connected with a material receiving assembly through a material receiving pipe.

By adopting the technical scheme, the vibrating mechanism of the screening device is started, the screening hopper and the screening net positioned in the screening hopper vibrate together, and after raw materials enter the screening hopper from the feeding chamber, the screening net can separate large-particle raw materials from small-particle raw materials under the vibration action of the screening hopper; in addition, the screening hopper is provided with a fine material discharge port and a coarse material discharge port, small-particle raw materials directly enter the drying chamber after coming out from the fine material discharge port, and large-particle raw materials are sent to the material receiving assembly through the material receiving pipe after coming out from the coarse material discharge port, so that the situation that the large-particle raw materials and the small-particle raw materials are mixed together again can be prevented.

Preferably, the drying chamber is provided with an air inlet and an air outlet, the air inlet is connected with an air supply mechanism through an air inlet pipe, and the air outlet is connected with an air suction mechanism through an air outlet pipe.

By adopting the technical scheme, the drying chamber is internally provided with the air inlet and the air outlet, the air inlet is connected with the air supply mechanism through the air inlet pipe, and the air supply mechanism can convey hot air into the drying chamber, so that the temperature of the air in the drying chamber is raised, and the raw materials are dried by the high-temperature air; the air outlet is connected with an air suction mechanism through an air outlet pipe, and the air suction mechanism can suck out cooled air in the drying chamber, so that air circulation is facilitated, and the drying effect of the drying chamber on raw materials is improved.

Preferably, a filter screen is arranged at one end, far away from the air supply mechanism, of the air inlet pipe.

Through adopting above-mentioned technical scheme, the air supply mechanism was kept away from to the air-supply line one end sets up the filter screen, and the problem in the air-supply line can be prevented to the setting of filter screen, is favorable to reducing the air-supply line and takes place the possibility of jam to make hot-blast can get into the drying chamber smoothly.

Preferably, be equipped with rabbling mechanism in the drying chamber, rabbling mechanism is including being located stirring subassembly and the drive in the drying chamber stirring subassembly pivoted driving piece.

Through adopting above-mentioned technical scheme, establish rabbling mechanism in the drying chamber, the rabbling mechanism is including stirring subassembly and driving piece, and the driving piece is used for driving stirring subassembly and rotates, and the stirring subassembly can stir the raw materials at the pivoted in-process, is favorable to making the raw materials abundant with the hot-air contact in the drying chamber, is favorable to improving the drying effect of drying hopper to the raw materials.

Preferably, a splash-proof mechanism is arranged at a communication port between the sieving chamber and the feeding chamber, the splash-proof mechanism comprises a cover plate and a first driving source, the cover plate is arranged at the communication port between the sieving chamber and the feeding chamber, and the first driving source is used for driving the cover plate to open or close.

By adopting the technical scheme, the communication port of the screening chamber and the feeding chamber is provided with the anti-splashing mechanism, the anti-splashing mechanism comprises a cover plate and a first driving source, and the first driving source drives the cover plate to open or close; when the first driving source drives the cover plate to be in an open state, the feeding chamber is communicated with the screening chamber, and raw materials can enter the screening chamber from the feeding chamber; after the raw materials got into the screening room, start first driving source and make the apron be in the closed condition, at this moment, the sieving mechanism during operation, the raw materials can not pop out from the intercommunication mouth department of feed chamber and screening room.

Preferably, the drying chamber with the intercommunication mouth department of ejection of compact room is equipped with stock stop, stock stop includes baffle and second driving source, the baffle is located the drying chamber with ejection of compact room intercommunication mouth department, the second driving source is used for the drive the baffle is opened or is closed.

By adopting the technical scheme, the material blocking mechanism is arranged at the communication port of the drying chamber and the discharge chamber and comprises a baffle and a second driving source, and the second driving source drives the baffle to be opened or closed; when the drying chamber dries the raw materials, the second driving source drives the baffle to be in a closed state, and at the moment, the raw materials which are not dried cannot enter the discharging chamber from a communication port between the drying chamber and the discharging chamber; and after the raw materials in the drying chamber are dried, the second driving source can be started to enable the baffle to be in an open state, at the moment, the raw materials in the drying chamber can enter the discharging chamber from the communicating port of the drying chamber and the discharging chamber, and therefore feeding is conducted on the raw materials by the injection molding machine.

Preferably, a guide plate is arranged around the baffle, and the surface of one side of the guide plate, which is close to the drying chamber, is inclined downwards in the direction close to the guide plate.

Through adopting above-mentioned technical scheme, the raw materials that lie in baffle week side in the drying chamber can be under the action of gravity of self along the inclined plane of guide plate toward the intercommunication mouth department motion of drying chamber and ejection of compact room, has the advantage that the raw materials that are convenient for make and lie in the drying chamber get into the ejection of compact room.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the hopper body comprises a feeding chamber, a screening chamber, a drying chamber and a discharging chamber which are sequentially arranged along the raw material trend, raw materials enter from the feeding chamber, then the raw materials are screened by a screening device in the screening chamber, after large-particle raw materials are screened out, small-particle raw materials meeting requirements enter the drying chamber, and the small-particle raw materials meeting the requirements are dried by the drying chamber; the large-particle raw materials with larger particle sizes are screened before the raw materials are dried, so that the small-particle raw materials with smaller particle sizes can be fully contacted with the air in the drying chamber, and the drying effect of the drying hopper on the raw materials is improved;

2. the filter screen is arranged at one end of the air inlet pipe, which is far away from the air supply mechanism, so that the problem that raw materials enter the air inlet pipe can be prevented, the possibility of blockage of the air inlet pipe is favorably reduced, and hot air can smoothly enter the drying chamber;

3. establish rabbling mechanism in the drying chamber, rabbling mechanism is including stirring subassembly and driving piece, and the driving piece is used for driving the stirring subassembly and rotates, and the stirring subassembly can stir the raw materials at the pivoted in-process, is favorable to making the raw materials abundant with the hot-air contact in the drying chamber, is favorable to improving the drying effect of drying hopper to the raw materials.

Drawings

FIG. 1 is a cross-sectional view of a drying hopper for an injection molding machine according to an embodiment of the present application.

Description of reference numerals: 1. a hopper body; 11. a feed chamber; 12. a screening chamber; 121. a partition plate; 13. a drying chamber; 14. a discharge chamber; 21. a screening hopper; 211. a coarse material outlet; 2111. a material receiving pipe; 2112. a material receiving frame; 212. a fine material discharge port; 2121. a discharge pipe; 22. screening the net; 23. a vibration mechanism; 31. a cover plate; 311. a rotating shaft; 32. a first motor; 41. an air inlet pipe; 411. a filter screen; 42. a hot air dryer; 51. an air outlet pipe; 52. an exhaust fan; 61. a stirring shaft; 62. a stirring paddle; 63. a second motor; 71. a baffle plate; 72. a hydraulic cylinder; 8. a baffle.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a dry hopper for injection molding machine. Referring to fig. 1, the drying hopper comprises a hopper body 1, the hopper body 1 comprises a feeding chamber 11, a screening chamber 12, a drying chamber 13 and a discharging chamber 14 which are sequentially arranged along the direction of raw materials, the feeding chamber 11 is communicated with the screening chamber 12, the screening chamber 12 is communicated with the drying chamber 13, and the drying chamber 13 is communicated with the discharging chamber 14. Wherein, screening plant that sieves the raw materials is equipped with in the screening room 12, and drying chamber 13 dries the raw materials that gets into drying chamber 13.

With continued reference to fig. 1, a partition 121 is provided between the classifying chamber 12 and the drying chamber 13, and the classifying device is mounted on the partition 121. Specifically, the sieving device includes a sieving hopper 21, a sieving net 22, and a vibrating mechanism 23. The feed inlet of the screening hopper 21 is opposite to the communication port between the screening chamber 12 and the feed chamber 11, the screening net 22 is positioned in the screening hopper 21, and the vibrating mechanism 23 is connected with the screening hopper 21. Wherein, screening hopper 21 is equipped with coarse fodder discharge gate 211 in the top of screening net 22, installs in the coarse fodder discharge gate 211 and connects material pipe 2111, and the lateral wall that connects material pipe 2111 to run through screening chamber 12 is connected with and connects the material subassembly, connects the material subassembly to be located the outside of hopper body 1. In this embodiment, the material receiving assembly takes the material receiving frame 2112 as an example. In addition, the sieving hopper 21 has a fine material discharge port 212 provided below the sieving mesh 22, the fine material discharge port 212 is connected to a discharge pipe 2121, and the end of the discharge pipe 2121 is positioned above a communication port between the sieving chamber 12 and the drying chamber 13. After raw materials get into screening fill 21 from feed chamber 11, start vibrating mechanism 23, screening fill 21 drives screening net 22 and shakes together to can see through screening net 22's raw materials from discharging pipe 2121 outflow and get into drying chamber 13, can not see through screening net 22's raw materials from receiving pipe 2111 outflow and get into in receiving frame 2112, realized the purpose of sieving out the large granule raw materials from the tiny particle raw materials.

With continued reference to fig. 1, in order to prevent the raw material from splashing out of the communicating opening between the sieving chamber 12 and the feeding chamber 11 during the raw material sieving process of the sieving device, in this embodiment, the communicating opening between the sieving chamber 12 and the feeding chamber 11 is provided with a splash-proof mechanism. The splash prevention mechanism includes a cover plate 31 and a first drive source, which is a first motor 32 in this embodiment. Wherein, first motor 32 is installed in the inner wall of screening chamber 12, and the apron 31 lid is established in the intercommunication mouth department of screening chamber 12 and feed chamber 11, and the middle part of apron 31 is worn to be equipped with pivot 311, and the one end of pivot 311 is rotated and is installed in the inner wall that first motor 32 is kept away from in screening chamber 12, the other end and the output shaft fixed connection of first motor 32. When the first motor 32 is started, the position of the cover plate 31 can be adjusted, and when the cover plate 31 completely blocks the communication port between the sieving chamber 12 and the feeding chamber 11, raw materials cannot be splashed out of the communication port between the sieving chamber 12 and the feeding chamber 11.

With reference to fig. 1, the drying chamber 13 starts to have an air inlet and an air outlet, in this embodiment, the air inlet is located at a side of the drying chamber 13 close to the discharging chamber 14, and a plurality of air inlets may be arranged along the peripheral side of the drying chamber 13, and two air inlets are taken as an example in this embodiment. The air outlet is located the drying chamber 13 and is close to one side of screening chamber 12, and the air outlet also can set up a plurality ofly, and this embodiment takes one as an example. Wherein, an air inlet pipe 41 is installed in the air inlet, and an air supply mechanism is connected to one end of the air inlet pipe 41 away from the air inlet, in this embodiment, the air supply mechanism is a hot air dryer 42. The air inlet duct 41 delivers hot air generated by the hot air dryer 42 into the drying chamber 13, so that the temperature of air in the drying chamber 13 is raised, thereby drying the raw material. Install out tuber pipe 51 in the air outlet, the one end that the air outlet was kept away from to go out tuber pipe 51 is connected with the mechanism that induced drafts, and in this embodiment, the mechanism that induced drafts is air exhauster 52. The air blower 52 can timely draw out the cooled air to ensure the drying effect of the raw materials in the drying chamber 13.

In order to prevent the blockage of the air inlet pipe 41 and the failure of the hot air produced by the hot air dryer 42 to be delivered into the drying chamber 13, in this embodiment, a filter screen 411 is disposed at one end of the air inlet pipe 41 away from the hot air dryer 42, and the filter screen 411 can intercept the raw material.

In addition, in order to sufficiently contact the raw material with the hot air in the drying chamber 13, in the present embodiment, a stirring mechanism for stirring the raw material is provided in the drying chamber 13. The stirring mechanism comprises a stirring component and a driving piece. Specifically, the driving member is a second motor 63, the stirring assembly includes a stirring shaft 61 and a plurality of stirring blades 62, the stirring blades 62 are arranged along the length direction of the stirring shaft 61, one end of the stirring shaft 61 is fixedly connected with an output shaft of the second motor 63, and the other end is rotatably installed in the inner wall of the drying chamber 13.

With reference to fig. 1, a material stopping mechanism is disposed at a communication port between the drying chamber 13 and the discharging chamber 14, and includes a baffle 71 and a second driving source. The baffle 71 is located at a communication port between the drying chamber 13 and the discharging chamber 14, and one side of the baffle 71 is hinged to the inner wall of the communication port between the drying chamber 13 and the discharging chamber 14. The second driving source may be a pneumatic or hydraulic cylinder 72, and in the present embodiment, the second driving source is exemplified by the hydraulic cylinder 72. The cylinder body of the hydraulic cylinder 72 is hinged to the inner wall of the discharging chamber 14, and the output shaft of the hydraulic cylinder 72 is hinged to the middle of the baffle plate 71. When the baffle 71 is blocked at the communication port between the drying chamber 13 and the discharge chamber 14, the output shaft of the hydraulic cylinder 72 is in an extended state. When the output shaft of the hydraulic cylinder 72 contracts, the baffle 71 rotates to be opened, and the raw material in the drying chamber 13 can enter the discharging chamber 14.

In order to facilitate the raw material in the drying chamber 13 to enter the discharging chamber 14, in this embodiment, the baffle plate 8 is disposed around the baffle plate 71, and the surface of the side of the baffle plate 8 close to the drying chamber 13 is inclined downward toward the direction close to the baffle plate 8, so as to guide the raw material at the bottom of the drying chamber 13 to the discharging chamber 14.

The implementation principle of the drying hopper for the injection molding machine is as follows: raw materials enter from the feeding chamber 11, then the raw materials are screened by a screening device in the screening chamber 12, after large-particle raw materials are screened out, small-particle raw materials meeting requirements enter the drying chamber 13, and the small-particle raw materials meeting the requirements are dried by the drying chamber 13; because before the raw materials are dried, large-particle raw materials with large particle sizes are screened out, small-particle raw materials with small particle sizes can be in full contact with air in the drying chamber 13, and the drying effect of the drying hopper on the raw materials is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (6)

1. The utility model provides a dry hopper for injection molding machine, includes hopper body (1), its characterized in that: the hopper body (1) comprises a feeding chamber (11), a screening chamber (12), a drying chamber (13) and a discharging chamber (14) which are sequentially arranged along the direction of raw materials and communicated with each other; wherein a screening device for screening out large-particle raw materials is arranged in the screening chamber (12), the drying chamber (13) is used for drying the raw materials after the large particles are screened out, the screening device comprises a screening hopper (21), a screening net (22) arranged in the screening hopper (21) and a vibration mechanism (23) for driving the screening hopper (21) to vibrate, the screening hopper (21) is provided with a fine material outlet (212) and a coarse material outlet (211), the fine material outlet (212) is positioned below the screening net (22), the coarse material outlet (211) is positioned above the screening net (22), the coarse material discharge port (211) is connected with a material receiving assembly through a material receiving pipe (2111), the drying chamber (13) is provided with an air inlet and an air outlet, the air inlet is connected with an air supply mechanism through an air inlet pipe (41), and the air outlet is connected with an air suction mechanism through an air outlet pipe (51).

2. A drying hopper for an injection molding machine as defined in claim 1, wherein: and a filter screen (411) is arranged at one end of the air inlet pipe (41) far away from the air supply mechanism.

3. A drying hopper for an injection molding machine as defined in claim 1, wherein: be equipped with rabbling mechanism in drying chamber (13), rabbling mechanism is including being located stirring subassembly in drying chamber (13) and drive stirring subassembly pivoted driving piece.

4. A drying hopper for an injection molding machine as defined in claim 1, wherein: the screening chamber (12) with the intercommunication mouth department of feed space (11) is equipped with prevents the splash mechanism, prevent the splash mechanism including apron (31) and first drive source, apron (31) lid is located screening chamber (12) with the intercommunication mouth department of feed space (11), first drive source is used for the drive apron (31) are opened or are closed.

5. A drying hopper for an injection molding machine as defined in claim 1, wherein: drying chamber (13) with the intercommunication mouth department of ejection of compact room (14) is equipped with stock stop, stock stop includes baffle (71) and second drive source, baffle (71) are located drying chamber (13) with ejection of compact room (14) intercommunication mouth department, the second drive source is used for the drive baffle (71) are opened or are closed.

6. The drying hopper for an injection molding machine according to claim 5, wherein: the periphery of baffle (71) encloses and is equipped with guide plate (8), guide plate (8) are close to the surface of one side of drying chamber (13) toward being close to the direction slope of guide plate (8) sets up downwards.

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