CN107962739A - Feeding device for injection mold - Google Patents

Abstract

The invention relates to the technical field of chemical equipment, in particular to a feeding device for an injection mold, which comprises a stirring box, a dust collection device, a high-pressure fan assembly, a propulsion device and a support frame, wherein the center of the top end of the stirring box is fixedly connected with a second motor, the tail end of a main shaft of the second motor is fixedly connected with a vertically arranged stirring rod, the right side of the stirring box is fixedly connected with an air heater which can dry and dehumidify a plastic raw material, the left upper end of the stirring box is provided with the dust collection device, the dust collection device comprises a dust removal box, an air guide pipe and a dust removal filter core and can remove dust from the plastic raw material, the propulsion device comprises a propulsion pipe, a first motor and a propulsion screw rod, and the left top end of the; the bottom end of the stirring tank is fixedly connected with the aggregate bin, and the bottom end of the aggregate bin is fixedly connected with the propelling pipe.

Description

Feeding device for injection mold

technical field

The invention relates to the technical field of chemical equipment, in particular to a feeding device for an injection mold.

Background technique

Injection molding is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain complex-shaped parts. The injection molding machine is injected into the mold cavity under high pressure, and after cooling and solidification, the molded product is obtained. With the continuous development of the times, the use of plastic products is becoming wider and wider. Therefore, the demand for injection molds is increasing day by day.

At present, the injection mold feeding devices on the market directly push the plastic raw materials into the barrel of the injection molding machine under high pressure, without dehumidification and dust removal for the plastic raw materials, because a large amount of dust and impurities will be mixed in the plastic raw materials during the production, processing, transportation and mixing process , if it is not treated, it will seriously affect the quality of the molded plastic, and because many plastic raw materials have strong hygroscopicity, the water content must be reduced before the product is formed to avoid air bubbles in the subsequent hot-melt injection molding process that will affect the quality and service life of the product. In view of the above problems, a feeding device for injection molds is proposed.

Contents of the invention

The object of the present invention is to provide a feeding device for injection molds to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A feeding device for an injection mold, comprising a stirring box, a dust collection device, a high-pressure fan assembly, a propulsion device and a support frame, a feeding hopper is fixedly connected to the upper right end of the stirring box, and a second motor, and the end of the second motor main shaft is fixedly connected with a vertically arranged stirring rod, the stirring rod extends through the top of the stirring tank to the inside of the stirring tank, and the surface of the stirring rod is fixedly connected with a plurality of stirring blades, the upper left of the inside of the stirring tank The corner is fixedly connected with a filter screen, the right side of the mixing box is fixedly connected with a hot air blower, and the air outlet of the hot air blower is connected to the inside of the mixing box, and the upper left end of the mixing box is provided with a dust suction device, and the dust suction device includes a dust removal box , air guide pipe and dust removal filter element, the bottom end of the dust removal box is connected with the mixing box, the two ends of the air guide pipe are fixedly connected to the inner wall of the dust removal box, and the surface of the air guide pipe is fixedly connected with a plurality of dust removal filter elements, the dust removal filter element The top is connected with the air duct; the high-pressure blower assembly includes a centrifugal fan, a fixed base and a driving motor, the driving motor is fixedly connected to the top of the fixed base through bolts, and the right end of the driving motor is fixedly connected with a centrifugal fan, and the centrifugal fan sucks The tuyere is sleeved with an air duct, and the other end of the air duct communicates with the air guide duct in the dust removal box; the propulsion device includes a propulsion tube, a first motor and a propulsion screw, and the first motor is fixedly connected to the left end of the propulsion tube, and The end of the main shaft of the first motor is fixedly connected with a propulsion screw horizontally arranged in the propulsion tube, and the top left side of the propulsion tube is provided with a feed port; the bottom end of the mixing box is fixedly connected with a collecting hopper, and the periphery of the collecting hopper is fixedly connected with a support frame , the bottom end of the collection hopper is fixedly connected with the propulsion pipe, and the collection hopper communicates with the propulsion pipe through the feed port.

Preferably, there are several stirring blades, which are fixedly connected to the surface of the stirring rod at equal intervals in turn.

Preferably, the dust-removing filter element is a hollow dust-removing rod, and several filter holes arranged in a row are opened on its surface.

Preferably, the filter screen is fixedly connected to the upper left corner inside the stirring box, and the mesh of the filter screen is 1-5mm smaller than the diameter of the plastic material.

Preferably, the collecting hopper is conical, and the bottom end of the collecting hopper communicates with the propulsion pipe.

Compared with prior art, the beneficial effect of the present invention is:

1. In the present invention, the plastic raw material can be dehumidified and dried through the provided stirring rod, stirring blade and hot air blower, and the moisture of the raw material can be evaporated through the hot air circulation in the stirring box, and the plastic raw material can be stirred and dispersed by the stirring rod and the stirring blade. Ensure that the moisture in the raw material can be completely removed, reducing the generation of air bubbles due to excessive moisture in the subsequent melting and injection of plastic raw materials;

2. In the present invention, the dust and impurities contained in the raw materials and introduced during the mixing process can be removed through the dust removal device, the filtering effect is good, the energy consumption is low, and the subsequent hot-melt injection molding process of the plastic raw materials is guaranteed to proceed smoothly;

3. In the present invention, the clean and dry raw materials after dehumidification and dust removal can be evenly pushed to the feeding port of the injection mold through the set collecting hopper and the propulsion device, so as to ensure that the injection molding process is carried out in an orderly and efficient manner. The overall device is scientific and reasonable, and has huge advantages. Economic benefits are worth promoting.

Description of drawings

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

FIG. 2 is a schematic diagram of the structure at A in FIG. 1 .

In the figure: 1-stirring box, 2-dust collection device, 201-dust removal box, 202-air duct, 203-dust filter element, 3-high pressure fan assembly, 301-centrifugal fan, 302-fixed base, 303-drive motor , 4-hot air blower, 5-collecting hopper, 6-propelling device, 601-propelling pipe, 602-first motor, 603-propelling screw, 7-second motor, 8-filter, 9-air pipe, 10- Feed hopper, 11-stirrer rod, 12-stirrer blade, 13-support frame, a-filter hole, b-feed inlet.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Referring to Fig. 1-2, the present invention provides a technical solution:

A feeding device for an injection mold, comprising a stirring box 1, a dust collection device 2, a high-pressure fan assembly 3, a propulsion device 6 and a support frame 13, the upper right end of the stirring box 1 is fixedly connected with a feeding hopper 10, and the stirring box 1. The second motor 7 is fixedly connected to the center of the top, and the end of the main shaft of the second motor 7 is fixedly connected to a vertically arranged stirring rod 11. The stirring rod 11 extends through the top of the stirring tank 1 to the inside of the stirring tank 1, and the stirring rod 11 The surface is fixedly connected with a plurality of stirring blades 12, the upper left corner of the stirring box 1 is fixedly connected with a filter screen 8, and the right side of the stirring box 1 is fixedly connected with a hot air blower 4, and the air outlet of the hot blower 4 is connected to the inside of the stirring box 1. Connected, the upper left end of the stirring box 1 is provided with a dust collection device 2, the dust collection device 2 includes a dust removal box 201, an air duct 202 and a dust removal filter element 203, and the bottom end of the dust removal box 201 communicates with the mixing box 1, so The two ends of the air guide pipe 202 are fixedly connected to the inner wall of the dust removal box 201, and the surface of the air guide pipe 202 is fixedly connected with a plurality of dust removal filter elements 203, and the top of the dust removal filter elements 203 communicates with the air guide pipe 202; the high-pressure fan assembly 3 Including a centrifugal fan 301, a fixed base 302 and a drive motor 303, the drive motor 303 is fixedly connected to the top of the fixed base 302 by bolts, and the right end of the drive motor 303 is fixedly connected to a centrifugal fan 301, and the suction port of the centrifugal fan 301 is sleeved with Air duct 9, and the other end of air duct 9 communicates with the air guide duct 202 in the dust removal box 201; the propulsion device 6 includes a propulsion tube 601, a first motor 602 and a propulsion screw 603, and the first motor 602 is fixedly connected to the The left end of the propulsion tube 601, and the end of the main shaft of the first motor 602 is fixedly connected with the propulsion screw 603 horizontally arranged in the propulsion tube 601, and the top left side of the propulsion tube 601 is provided with a feed port b; the bottom end of the mixing box 1 is fixed A collecting hopper 5 is connected, and the periphery of the collecting hopper 5 is fixedly connected with a support frame 13 , the bottom end of the collecting hopper 5 is fixedly connected with the propulsion pipe 601 , and the collecting hopper 5 communicates with the propulsion pipe 601 through the feeding port b.

The number of the stirring blades 12 is 10-15, and they are fixedly connected to the surface of the stirring rod 11 at equal intervals in turn, so that the plastic raw materials can be stirred and broken up to facilitate drying and dehumidification. The dust removal filter element 203 is a hollow dust removal rod, and its There are several filter holes a arranged in a row on the surface, which can absorb and separate the sucked dust to prevent dust from entering the centrifugal fan 301. The filter screen 8 is fixedly connected to the upper left corner of the mixing box 1, and the filter screen 8 meshes 1-5mm smaller than the diameter of the plastic raw material, the plastic raw material can be separated from the dust, the collecting hopper 5 is conical, and the bottom end of the collecting hopper 5 communicates with the propulsion pipe 601 .

Workflow: Turn on the first motor 602, the second motor 7, the hot air blower 4 and the driving motor 303, pour the plastic material to be processed from the feed hopper 10, and the second motor 7 drives the stirring rod 11 and the stirring blade 12 to transfer the plastic The raw materials are broken up and separated, and the hot air blower 4 inputs hot air into the mixing box 1 to carry out thermal circulation, removes the moisture in the plastic raw materials, and reduces the water content. The mixing box 1 carries out high-pressure suction, and the dust and impurities in the plastic raw materials are sucked into the dust removal box 1. The dust removal filter element 203 of the dust removal box 1 can completely absorb the dust, so as to avoid dust impurities being sucked into the centrifugal fan 301 and cause operation failure. It falls into the collecting hopper 5 due to its own gravity and the blocking effect of the filter screen 8, and then enters the propulsion tube 601 through the feed port b, and then propels the screw 603 to send the clean raw materials after dedusting and dehumidification into the injection mold barrel at a uniform speed Completing the subsequent hot-melt molding process, the yield and product quality of the molded plastic can be greatly improved by dedusting and dehumidifying the raw materials, and the service life can be extended, which is worth promoting.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of injection mold feeding device, including agitator tank（1）, dust exhaust apparatus（2）, high pressure positive blower component（3）, promote dress Put（6）And supporting rack（13）, it is characterised in that：The agitator tank（1）Upper right side is fixedly connected with feed hopper（10）, the stirring Case（1）Top center is fixedly connected with the second motor（7）, and the second motor（7）Main shaft end is fixedly connected with what is be vertically arranged Rabble（11）, the rabble（11）Through agitator tank（1）Top extends to agitator tank（1）Inside, and rabble（11）Table Face is fixedly connected with multiple paddles（12）, the agitator tank（1）The internal upper left corner is fixedly connected with filter screen（8）, it is described to stir Mix case（1）Right side is fixedly connected with air-heater（4）, and air-heater（4）Air outlet and agitator tank（1）Inside connection, the stirring Case（1）Left upper end is equipped with dust exhaust apparatus（2）, the dust exhaust apparatus（2）Including dust cleaning case（201）, guide duct（202）Filtered with dedusting Core（203）, the dust cleaning case（201）Bottom and agitator tank（1）Connection, the guide duct（202）Both ends are fixedly connected on dedusting Case（201）Madial wall, and guide duct（202）Surface is fixedly connected with multiple dust removal filter elements（203）, the dust removal filter element（203） Top and guide duct（202）Connection；The high pressure positive blower component（3）Including centrifugal blower（301）, firm banking（302）And drive Dynamic motor（303）, the driving motor（303）It is bolted to connection in firm banking（302）Top, and drive motor （303）Right end is fixedly connected with centrifugal blower（301）, the centrifugal blower（301）Inlet scoop is socketed with air hose（9）, and air hose （9）The other end and dust cleaning case（201）Interior guide duct（202）Connection；The propulsion device（6）Including propulsion tube（601）, first Motor（602）And augering screw（603）, first motor（602）It is fixedly connected on propulsion tube（601）Left end, and the first electricity Machine（602）Main shaft end, which is fixedly connected with, is horizontally placed on propulsion tube（601）Interior augering screw（603）, the propulsion tube （601）Left side top offers feed inlet（b）；The agitator tank（1）Bottom is fixedly connected with aggregate bin（5）, and aggregate bin（5） Periphery is fixedly connected with supporting rack（13）, the aggregate bin（5）Bottom and propulsion tube（601）It is fixedly connected, and aggregate bin（5）It is logical Cross feed inlet（b）With propulsion tube（601）Connection.

A kind of 2. injection mold feeding device according to claim 1, it is characterised in that：The paddle（12）Quantity For several, and rabble is equidistantly fixedly connected on successively（11）Surface.

A kind of 3. injection mold feeding device according to claim 1, it is characterised in that：The dust removal filter element（203） For a hollow dust removing bar, and its surface offers the filter hole that several are in permutation distribution（a）.

A kind of 4. injection mold feeding device according to claim 1, it is characterised in that：The filter screen（8）It is fixed It is connected to agitator tank（1）The internal upper left corner, and filter screen（8）Mesh is less than the diameter 1-5mm of plastic material.

A kind of 5. injection mold feeding device according to claim 1, it is characterised in that：The aggregate bin（5）For cone Shape, and aggregate bin（5）Bottom and propulsion tube（601）Connection.