Raw material extrusion equipment for plastic product processing

Abstract

The utility model discloses raw material extrusion equipment for plastic product processing, and particularly relates to the field of milling cutters, the raw material extrusion equipment comprises a base, a servo motor, an extrusion mechanism, a stirring mechanism and a snuffle valve, the servo motor is installed on the upper end face of the base, the output end of the servo motor is provided with the extrusion mechanism, the feeding end of the extrusion mechanism is provided with the stirring mechanism, and the stirring mechanism is arranged on the snuffle valve. A snuffle valve is arranged at the output end of the extrusion mechanism, a mold conveyor is arranged on the side, away from the extrusion mechanism, of the snuffle valve, a first feeding port is formed in the input end of the stirring mechanism, a first discharging port is formed in the output end of the stirring mechanism, and a second feeding port is formed in the input end of the extrusion mechanism. According to the equipment, raw materials are stirred through the stirring mechanism before being extruded, and the raw materials are dried and moisture is removed, so that bubbles or defects in a material product are avoided, and crazing, bubble generation, poor gloss and poor transfer printing are avoided on the surface of a molded product during injection molding.

Description

Technical Field

[0001] The utility model relates to the field of plastic processing equipment, and more specifically, to a raw material extrusion equipment for processing plastic products. Background Art

[0002] Plastic processing is also called plastic molding processing. It is a general term for various processes that convert synthetic resins or plastics into plastic products. It is a large production sector in the plastics industry. Plastic processing generally includes plastic batching, molding, machining, joining, modification and assembly. The last four processes are carried out after the plastic has been molded into finished products or semi-finished products, also known as plastic secondary processing;

[0003] For example, application number CN202211578433.6 discloses a plastic extrusion device. When filling, the raw material will contact the inner wall of the first feed hopper to achieve the effect of preheating the raw material. In the existing equipment, before the plastic is extruded through the extrusion device, the raw material is firstly mixed evenly by a mixing device. However, there are plastic raw materials with strong hygroscopicity, so it is necessary to dry the raw material before extrusion. The above device discharges the air in the plastic raw material by heating, but the preheating temperature of the above device is not high or the heating time is not long, so the moisture in the plastic raw material cannot be discharged in time. An extrusion device for discharging moisture in the plastic raw material is needed;

[0004] Therefore, in view of the above problems, a raw material extrusion device for processing plastic products is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a raw material extrusion device for processing plastic products to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material extrusion device for processing plastic products, comprising a base, a servo motor, an extrusion mechanism, a stirring mechanism and an air release valve, wherein the servo motor is installed on the upper end surface of the base, an extrusion mechanism is arranged at the output end of the servo motor, and a stirring mechanism is arranged at the feed end of the extrusion mechanism, an air release valve is arranged at the output end of the extrusion mechanism, a mold conveyor is arranged on the side of the air release valve away from the extrusion mechanism, a first feed port is arranged at the input end of the stirring mechanism, a first discharge port is arranged at the output end of the stirring mechanism, and a second feed port is arranged at the input end of the extrusion mechanism;

[0007] The stirring mechanism includes a stirring box and a drying component. The inner wall of the stirring box is provided with a drying component. The stirring box is provided with a stirring component above the stirring box. The drying component includes a heat-conducting copper tube and a heating resistor. The heat-conducting copper tube is installed on the inner wall of the stirring box. The heating resistor is installed inside the heat-conducting copper tube. The inner wall of the stirring box is attached with a heat-conducting copper sheet, and the heat-conducting copper tube is fixedly connected to the heat-conducting copper sheet. The inner wall of the stirring box is provided with a temperature and humidity sensor. The heating resistor is electrically connected to a temperature controller. The outside of the stirring box is provided with a thermal insulation layer.

[0008] Preferably, the stirring assembly includes a driving motor and a stirring rod, the driving motor is installed above the stirring box through a fixed frame, and the stirring rod is installed at the output shaft of the output end of the driving motor, a first stirring support rod is provided on the outer diameter surface of the stirring rod, a second stirring support rod is provided on the inner wall of the stirring box, and a grid plate is arranged laterally on the inner wall of the stirring box, and two groups of grid plates are provided.

[0009] Preferably, the extrusion mechanism comprises a spiral conveying tube and a spiral rod, the inner cavity of the spiral conveying tube is provided with the spiral rod, and one end of the spiral rod is provided with a flange, and the spiral rod is limitably connected to the output end of the servo motor through the flange.

[0010] Preferably, two groups of spiral conveying tubes, spiral rods and flanges are provided in the extrusion mechanism, and the two groups of flanges are limit connected to the output end of the servo motor, and the first discharge port in the mixing box is limit connected to the second feed port in the spiral conveying tube through a detachable bolt.

[0011] Preferably, the mixing box is connected to the spiral conveying pipe through the first discharge port and the second feed port, the spiral conveying pipe is connected to the air relief valve through the second discharge port, and the air relief valve is connected to the mold conveyor.

[0012] Preferably, the heat-conducting copper tubes are provided in several groups, and the several groups of heat-conducting copper tubes are evenly and symmetrically arranged with the center of the stirring box as the origin, the contact surface of the stirring rod and the grid plate is provided with a bearing, and the stirring rod and the grid plate are respectively fixedly connected to the inner diameter surface and the outer diameter surface of the bearing, and the stirring rod forms a rotating structure that rotates around the center of the bearing through the bearing and the grid plate.

[0013] Technical effects and advantages of the utility model:

[0014] Compared with the prior art, this raw material extrusion equipment for processing plastic products stirs the raw materials through a stirring mechanism before extruding the raw materials, and dries the raw materials and removes moisture, thereby avoiding the appearance of bubbles or defects in the material products, and avoiding the formation of silver streaks, bubbles, poor gloss, and poor transfer on the surface of the molded products during injection molding.

[0015] Compared with the prior art, the raw material extrusion equipment for processing plastic products stirs the raw material through a stirring mechanism, dries the raw material and removes moisture, wherein the raw material is fed into the inner cavity of the stirring box through a first feed port, and due to the effect of the grid plate, the raw material is delayed in feeding, so that the raw material is dried, the heating resistor in the drying component is started and the driving motor in the stirring component is started, wherein the heating resistor generates heat, and the heat is transferred to the heat-conducting copper tube and the heat-conducting copper sheet, so as to heat the raw material, and then dry the raw material, and the heating temperature of the raw material is detected by a temperature and humidity sensor, and the corresponding heating temperature of the heating resistor is controlled by a temperature controller, and at the same time, the insulation layer is insulated, so that the raw material is dried, and the driving motor drives the stirring rod to rotate, so that the first stirring support rod stirs the raw material, and the first stirring support rod and the second stirring support rod are staggered, so as to fully stir the raw material, and fully process and dry the raw material, thereby avoiding the occurrence of bubbles or defects in the material product, and avoiding the formation of silver streaks, bubbles, poor gloss and poor transfer on the surface of the molded product during injection molding.

[0016] Compared with the prior art, the raw material extrusion equipment for processing plastic products stirs and dries the raw materials through a stirring mechanism, and then extrude the raw materials through an extrusion mechanism, wherein a servo motor is started, and the servo motor drives the screw rod in the spiral conveying pipe in the extrusion mechanism to rotate through a flange plate, so as to extrude the raw materials out, and during the extrusion process, other materials in the raw materials are further discharged through an air relief valve, and finally the raw materials are conveyed to the inside of the mold through a mold conveyor, and then cooled and formed, and finally a molded plastic product is obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the front section structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the utility model from top view.

[0020] Figure 4 It is a schematic diagram of the front section structure of the stirring mechanism of the utility model.

[0021] Figure 5 It is a schematic diagram of the top view of the mixing box of the utility model.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the mixing box of the utility model.

[0023] The accompanying drawings are marked as follows: 1. base; 2. servo motor; 3. extrusion mechanism; 301. spiral conveying pipe; 302. spiral rod; 303. flange; 4. stirring mechanism; 401. stirring box; 402. drying component; 4021. thermal copper tube; 4022. heating resistor; 4023. temperature and humidity sensor; 4024. thermostat; 4025. insulation layer; 403. stirring component; 4031. driving motor; 4032. stirring rod; 4033. first stirring support rod; 4034. second stirring support rod; 4035. grid plate; 5. air release valve; 6. mold conveyor; 7. first feed port; 8. first discharge port; 9. second feed port; 10. second discharge port. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] As attached Figures 1 to 3 A raw material extrusion device for processing plastic products shown in the figure comprises a base 1, a servo motor 2, an extrusion mechanism 3, a stirring mechanism 4 and an air release valve 5, wherein the servo motor 2 is mounted on the upper end surface of the base 1, the output end of the servo motor 2 is provided with the extrusion mechanism 3, and the feeding end of the extrusion mechanism 3 is provided with the stirring mechanism 4, the output end of the extrusion mechanism 3 is provided with the air release valve 5, the side of the air release valve 5 away from the extrusion mechanism 3 is provided with a mold conveyor 6, the input end of the stirring mechanism 4 is provided with a first feeding port 7, and the output end of the stirring mechanism 4 is provided with a first discharging port 8, and the input end of the extrusion mechanism 3 is provided with a second feeding port 9;

[0027] The stirring mechanism 4 includes a stirring box 401 and a drying component 402. The inner wall of the stirring box 401 is provided with a drying component 402. The stirring box 401 is provided with a stirring component 403 above the stirring box 401. The drying component 402 includes a heat-conducting copper tube 4021 and a heating resistor 4022. The heat-conducting copper tube 4021 is installed on the inner wall of the stirring box 401. The heating resistor 4022 is installed inside the heat-conducting copper tube 4021. The inner wall of the stirring box 401 is attached with a heat-conducting copper sheet, and the heat-conducting copper tube 4021 is fixedly connected to the heat-conducting copper sheet. The inner wall of the stirring box 401 is provided with a temperature and humidity sensor 4023. The heating resistor 4022 is electrically connected to a temperature controller 4024. The outside of the stirring box 401 is provided with a heat-insulating layer 4025.

[0028] Wherein: the stirring mechanism 4 is used to stir the raw material, and the raw material is dried and the moisture is removed, wherein the raw material is put into the inner cavity of the stirring box 401 through the first feed port 7, and due to the effect of the grid plate 4035, the raw material will be delayed in feeding, so as to dry the raw material, start the heating resistor 4022 in the drying component 402 and start the driving motor 4031 in the stirring component 403, wherein the heating resistor 4022 generates heat, and the heat is transferred to the heat-conducting copper tube 4021 and the heat-conducting copper sheet, so as to heat the raw material, and then dry the raw material, and the temperature and humidity sensor 4023 is used to detect the raw material The heating temperature of the heating resistor 4022 is controlled by the temperature controller 4024, and the insulation layer 4025 is insulated at the same time to dry the raw material, and the driving motor 4031 drives the stirring rod 4032 to rotate, so that the first stirring support rod 4033 stirs the raw material, and the first stirring support rod 4033 and the second stirring support rod 4034 are staggered to fully stir the raw material and fully process and dry the raw material, thereby avoiding bubbles or defects in the product, and avoiding the formation of silver streaks, bubbles, poor gloss and poor transfer on the surface of the molded product during injection molding.

[0029] Example 2

[0030] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working method. Figures 1 to 6 As shown, see the following description for details:

[0031] As a preferred embodiment, the stirring assembly 403 includes a driving motor 4031 and a stirring rod 4032. The driving motor 4031 is installed above the stirring box 401 through a fixed frame, and the stirring rod 4032 is installed at the output shaft of the output end of the driving motor 4031. The outer diameter surface of the stirring rod 4032 is provided with a first stirring support rod 4033, and the inner wall of the stirring box 401 is provided with a second stirring support rod 4034. The inner wall of the stirring box 401 is transversely arranged with a grid plate 4035, and the grid plate 4035 is provided with two groups, wherein the raw material is put into the inner cavity of the stirring box 401 using the first feed port 7, And due to the effect of the grid plate 4035, the raw material is delayed in unloading so that the raw material can be dried, and the heating resistor 4022 in the drying component 402 and the driving motor 4031 in the stirring component 403 are started, wherein the heating resistor 4022 generates heat, and the heat is transferred to the heat-conducting copper tube 4021 and the heat-conducting copper sheet so as to heat the raw material, and then the raw material is dried, and the temperature and humidity sensor 4023 is used to detect the heating temperature of the raw material, and the temperature controller 4024 is used to control the heating temperature of the corresponding heating resistor 4022, and at the same time the insulation layer 4025 is insulated so as to dry the raw material.

[0032] As a preferred embodiment, the extrusion mechanism 3 includes a spiral conveying tube 301 and a spiral rod 302. The inner cavity of the spiral conveying tube 301 is provided with the spiral rod 302, and one end of the spiral rod 302 is provided with a flange 303. The spiral rod 302 is limitedly connected to the output end of the servo motor 2 through the flange 303. The raw material is extruded by the extrusion mechanism 3, wherein the servo motor 2 is started, and the servo motor 2 drives the spiral rod 302 in the spiral conveying tube 301 in the extrusion mechanism 3 to rotate through the flange 303 so as to extrude the raw material.

[0033] As a preferred embodiment, the spiral conveying tube 301, the spiral rod 302 and the flange 303 in the extrusion mechanism 3 are each provided with two groups, and the two groups of flanges 303 are both limit-connected to the output end of the servo motor 2, and the first discharge port 8 in the mixing box 401 is limit-connected to the second feed port 9 in the spiral conveying tube 301 by a detachable bolt, and a highly filled plastic processed product is obtained by twin-screw extrusion, which can provide a better mixing effect and higher extrusion stability.

[0034] As a preferred embodiment, the mixing box 401 forms a connecting structure with the spiral conveying tube 301 through the first discharge port 8 and the second feed port 9, the spiral conveying tube 301 forms a connecting structure with the air release valve 5 through the second discharge port 10, and the air release valve 5 forms a connecting structure with the mold conveyor 6, and the air in the raw material is further discharged through the air release valve 5, thereby avoiding the occurrence of bubbles or defects in the product.

[0035] As a preferred embodiment, several groups of heat-conducting copper tubes 4021 are arranged, and the several groups of heat-conducting copper tubes 4021 are evenly and symmetrically arranged with the center of the mixing box 401 as the origin. The contact surface of the stirring rod 4032 and the grid plate 4035 is provided with a bearing, and the stirring rod 4032 and the grid plate 4035 are respectively fixedly connected to the inner diameter surface and the outer diameter surface of the bearing. The stirring rod 4032 forms a rotating structure rotating around the center of the bearing through the bearing and the grid plate 4035. The grid plate 4035 is used to slow down the falling speed of the raw material so as to heat the raw material. At the same time, the grid plate 4035 also helps to support the stirring rod 4032, thereby also helping to stir the raw material.

[0036] The working process of the utility model is as follows: first, the raw material is put into the inner cavity of the mixing box 401 through the first feed port 7, and due to the effect of the grid plate 4035, the raw material will be delayed, the heating resistor 4022 in the drying component 402 and the driving motor 4031 in the stirring component 403 are started, wherein the heating resistor 4022 generates heat, and the heat is transferred to the heat-conducting copper tube 4021 and the heat-conducting copper sheet, and the heating temperature of the raw material is detected by the temperature and humidity sensor 4023, and the corresponding heating temperature of the heating resistor 4022 is controlled by the thermostat 4024, and the insulation layer 4025 is insulated, and The driving motor 4031 drives the stirring rod 4032 to rotate so that the first stirring support rod 4033 stirs the raw material, and the first stirring support rod 4033 and the second stirring support rod 4034 are arranged alternately, and then the raw material is extruded through the extrusion mechanism 3, wherein the servo motor 2 is started, and the servo motor 2 drives the screw rod 302 in the screw conveying pipe 301 in the extrusion mechanism 3 to rotate through the flange 303, so as to extrude the raw material out, and during the extrusion process, other materials in the raw material are further discharged through the air release valve 5, and finally the mold conveyor 6 is used to convey the raw material to the inside of the mold to finally obtain a molded plastic product.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A raw material extrusion device for processing plastic products, comprising a base (1), a servo motor (2), an extrusion mechanism (3), a stirring mechanism (4) and an air release valve (5), characterized in that: The servo motor (2) is mounted on the upper end surface of the base (1); an extrusion mechanism (3) is provided at the output end of the servo motor (2); a stirring mechanism (4) is provided at the feed end of the extrusion mechanism (3); an air release valve (5) is provided at the output end of the extrusion mechanism (3); a mold conveyor (6) is provided at the side of the air release valve (5) away from the extrusion mechanism (3); a first feed port (7) is provided at the input end of the stirring mechanism (4); a first discharge port (8) is provided at the output end of the stirring mechanism (4); and a second feed port (9) is provided at the input end of the extrusion mechanism (3); The stirring mechanism (4) comprises a stirring box (401) and a drying component (402); the drying component (402) is arranged on the inner wall of the stirring box (401); the stirring component (403) is arranged above the stirring box (401); the drying component (402) comprises a heat-conducting copper tube (4021) and a heating resistor (4022); the heat-conducting copper tube (4021) is installed on the inner wall of the stirring box (401); the heating resistor (4022) is installed inside the heat-conducting copper tube (4021); the inner wall of the stirring box (401) is bonded with a heat-conducting copper sheet, and the heat-conducting copper tube (4021) is fixedly connected to the heat-conducting copper sheet; the inner wall of the stirring box (401) is provided with a temperature and humidity sensor (4023); the heating resistor (4022) is electrically connected to a temperature controller (4024); and the outside of the stirring box (401) is provided with a heat-insulating layer (4025).

2. A raw material extrusion equipment for plastic product processing according to claim 1, characterized in that: The stirring assembly (403) comprises a driving motor (4031) and a stirring rod (4032); the driving motor (4031) is mounted above the stirring box (401) via a fixing frame, and the stirring rod (4032) is mounted at the output shaft of the output end of the driving motor (4031); a first stirring support rod (4033) is arranged on the outer diameter surface of the stirring rod (4032); a second stirring support rod (4034) is arranged on the inner wall of the stirring box (401); a grid plate (4035) is arranged transversely on the inner wall of the stirring box (401), and two groups of grid plates (4035) are arranged.

3. The raw material extrusion equipment for plastic product processing according to claim 1, characterized in that: The extrusion mechanism (3) comprises a spiral conveying tube (301) and a spiral rod (302); the inner cavity of the spiral conveying tube (301) is provided with the spiral rod (302); one end of the spiral rod (302) is provided with a flange (303); the spiral rod (302) is limit-connected to the output end of the servo motor (2) via the flange (303).

4. The raw material extrusion equipment for plastic product processing according to claim 1, characterized in that: The extrusion mechanism (3) is provided with two groups of spiral conveying tubes (301), spiral rods (302) and flanges (303), and the two groups of flanges (303) are both position-limitingly connected to the output end of the servo motor (2), and the first discharge port (8) in the mixing box (401) is position-limitingly connected to the second feed port (9) in the spiral conveying tube (301) via detachable bolts.

5. The raw material extrusion equipment for plastic product processing according to claim 3, characterized in that: The mixing box (401) forms a communication structure with the spiral conveying pipe (301) through the first discharge port (8) and the second feed port (9), the spiral conveying pipe (301) forms a communication structure with the air release valve (5) through the second discharge port (10), and the air release valve (5) forms a communication structure with the mold conveyor (6).

6. The raw material extrusion equipment for plastic product processing according to claim 2, characterized in that: The heat-conducting copper tubes (4021) are provided in a plurality of groups, and the plurality of groups of heat-conducting copper tubes (4021) are evenly and symmetrically arranged with the center of the stirring box (401) as the origin. The contact surfaces of the stirring rod (4032) and the grid plate (4035) are provided with bearings, and the stirring rod (4032) and the grid plate (4035) are respectively fixedly connected to the inner diameter surface and the outer diameter surface of the bearing. The stirring rod (4032) forms a rotating structure rotating around the center of the bearing through the bearing and the grid plate (4035).

Images