Drying and feeding device

Abstract

The utility model relates to a drying and feeding device which comprises a shell, a hot air generating mechanism and a screw. A drying cavity, a hot air cavity, a feeding cavity and a material passing channel are formed in the shell, and the bottom of the drying cavity communicates with the lower portion of the feeding cavity through the material passing channel. A feeding port communicated with the drying cavity, a hot air inlet communicated with the hot air cavity and a discharging port communicated with the feeding cavity are formed in the shell. The left material guide plate and the right material guide plate in the drying cavity are inclined; all the left material guide plates are in one-to-one correspondence with all the right material guide plates; the left side edge of the right material guide plate extends to the lower part of the left material guide plate corresponding to the right material guide plate; a hot air via hole communicated with the hot air cavity and the drying cavity is formed in the shell; all the hot air via holes are arranged in the vertical direction, and a right guide plate is arranged between every two adjacent hot air via holes. The air outlet end of the hot air generating mechanism communicates with the hot air inlet through a pipeline; and the screw rod is rotationally mounted in the feeding cavity. The plastic raw material drying device has the characteristics of short plastic raw material drying time, high efficiency, good drying effect and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding production technical field, especially a drying material loading device. BACKGROUND

[0002] Injection molding machine is the main molding equipment of thermoplastic or thermosetting plastic and is made into plastic products by molding mold. In the process of production by using injection molding machine, the plastic raw material needs to be dried before hot melting to avoid the moisture contained in the injection molding raw material from affecting the quality of the molded product. At present, the material loading machine with drying function on the market is generally like the technical solution described in Chinese patent application No. CN2023224141824, named "high-efficiency automatic material loading device for injection molding machine", which includes a material loading cylinder arranged above the injection molding machine and a drying device installed at the side end of the material loading cylinder. The top of the material loading cylinder is provided with an air pump, the output end of the air pump is communicated with the material loading cylinder, the input end of the air pump is fixedly connected with a hose, the other end of the hose is fixedly connected with a suction steel pipe, the suction steel pipe is used to insert into the bagged raw material, the drying device is used to dry the raw material in the material loading cylinder, the drying device includes a fan, an electric heating wire and a connecting cylinder, the fan is fixed at the side end of the material loading cylinder, the electric heating wire is arranged in the connecting cylinder, one end of the connecting cylinder is communicated with the output end of the fan, and the other end is communicated with the bottom of the material loading cylinder. When the raw material in the material loading cylinder enters the injection molding machine, it passes through the air port of the connecting cylinder, and the fan and the electric heating wire blow hot air towards the material loading cylinder, so that the raw material in the material loading cylinder is dried more, thereby increasing the quality of the product. This structure, which dries the plastic raw material in the material loading cylinder by blowing hot air to the bottom of the material loading cylinder, needs to store the plastic raw material in the material loading cylinder for a certain period of time during the drying process, so that the drying device can dry the plastic raw material, so that such structure has the disadvantages of long drying time and low efficiency. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a drying material loading device, which has the advantages of simple structure, scientific design, short drying time of plastic raw material, high efficiency and good drying effect.

[0004] The technical scheme of the utility model is implemented as follows: a drying material loading device, in particular, includes a shell, a hot air generating mechanism and a screw; a drying cavity, a hot air cavity, a material loading cavity and a material passing channel are formed in the shell; the drying cavity, the hot air cavity and the material loading cavity are arranged in sequence from left to right, and the bottom of the drying cavity is communicated with the lower part of the material loading cavity through the material passing channel;

[0005] A plurality of left guide plates and a plurality of right guide plates are arranged in the drying cavity; each left guide plate is gradually inclined downward along the left-right direction, the left side edge of each left guide plate is connected with the left cavity wall of the drying cavity, and all the left guide plates are arranged along the up-down direction; each right guide plate is gradually inclined downward along the right-left direction, the right side edge of each right guide plate is connected with the right cavity wall of the drying cavity, and all the right guide plates are arranged along the up-down direction; all the left guide plates correspond to all the right guide plates; between the corresponding left guide plate and right guide plate: the left side edge of the right guide plate extends to the lower side of the left guide plate;

[0006] A plurality of hot air through holes are formed in the shell and communicate the drying cavity with the hot air cavity; all the hot air through holes are arranged along the up-down direction, and each of two adjacent hot air through holes is respectively provided with a right guide plate;

[0007] A feeding port and a hot air inlet are formed on the top surface of the shell; the feeding port communicates the drying cavity with the outside, and the feeding port is above the left guide plate; the hot air inlet communicates the hot air cavity with the outside;

[0008] The air outlet end of the hot air generating mechanism is communicated with the hot air inlet through a pipeline;

[0009] The screw is rotatably installed in the feeding cavity, and the rotation axis of the screw is arranged along the up-down direction; and an outlet is formed on the shell and communicates the upper part of the feeding cavity with the outside.

[0010] In use, the plastic raw material enters the drying cavity from the feeding port, and under the cooperation of the left guide plate and the right guide plate, the plastic raw material moves in the drying cavity in a zigzag shape from top to bottom; during the movement of the plastic raw material in the drying cavity, the hot air generated by the hot air generating mechanism enters the hot air cavity, and the hot air in the hot air cavity is divided and enters the drying cavity through a plurality of hot air through holes arranged along the up-down direction, so that the plastic raw material is dried by multiple hot air during the movement in the drying cavity, and the plastic raw material is dried after moving in the drying cavity, the drying time of the plastic raw material is short, and the drying efficiency is high; finally, the plastic raw material enters the feeding cavity through the material passage, so that the rotation of the screw can lift the plastic raw material and discharge it from the outlet into the hot melting device of the injection molding machine, which is very convenient to use.

[0011] Further, a plurality of air guide plates are arranged in the hot air cavity; the right side edge of each air guide plate is connected with the right cavity wall of the hot air cavity, the left side edge of each air guide plate is arranged away from the left cavity wall of the hot air cavity, and each air guide plate is gradually inclined downward along the right-left direction, the included angle γ between the air guide plate and the horizontal plane is in the range of 12°-18°; all the air guide plates are arranged along the up-down direction, and all the air guide plates correspond to all the hot air through holes; between the corresponding air guide plate and hot air through hole: the air guide plate is on the right upper side of the hot air through hole.

[0012] Further, the left side edge of the air deflector closer to the bottom of the hot air cavity is closer to the left cavity wall of the hot air cavity.

[0013] Further, the hot air hole below each right material guide plate is arranged to blow air towards the lower surface of the right material guide plate.

[0014] Further, the top surface of each left material guide plate is formed with a plurality of bosses; each boss is a circular truncated cone structure, and all the bosses on each left material guide plate are arranged along the right side edge thereof.

[0015] Further, the bottom surface of the material passing channel is a downwardly inclined surface along the left-right direction.

[0016] Further, the angle α between the left material guide plate and the horizontal plane is in the range of 18°-23°; the angle β between the right material guide plate and the horizontal plane is in the range of 18°-23°.

[0017] Further, the bottom surface of the hot air cavity is a downwardly inclined surface along the left-right direction, and the hot air cavity is formed with a discharging gap along the right side edge of the bottom surface thereof, and the discharging gap connects the material passing channel and the hot air cavity.

[0018] Further, the scheme further comprises a base frame; the shell is mounted on the base frame; a walking step is formed on the base frame, and the walking step is beside the drying cavity.

[0019] Further, the scheme further comprises a driving motor, the driving motor is fixed relative to the shell, and the driving motor is used to drive the screw rod to rotate.

[0020] The utility model discloses the advantages of simple structure, scientific design, short drying time of plastic raw material, high efficiency and good drying effect. DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the embodiment.

[0022] Figure 2 It is a left view structure schematic diagram of the embodiment.

[0023] Figure 3 It is a sectional structure schematic diagram of the embodiment. Figure 2

[0024] It is a sectional structure schematic diagram of the embodiment. Figure 4 Figure 3 It is an enlarged structure schematic diagram of the part B of the embodiment.

[0025] Figure 5 It is a structure schematic diagram of the left material guide plate of the embodiment.

[0026] ​Explanation of reference signs: 1 - housing; 11 - drying cavity; 12 - hot air cavity; 13 - feeding cavity; 14 - material passing channel; 15 - hot air passing hole; 16 - feeding port; 17 - hot air inlet; 18 - discharging port; 19 - funnel; 110 - discharging gap; 2 - screw; 3 - left guide plate; 31 - boss; 4 - right guide plate; 5 - air guide plate; 6 - base frame; 61 - walking step; 7 - driving motor; 8 - cover. DETAILED DESCRIPTION

[0027] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , the drying and feeding device of the embodiment comprises a housing 1, a hot air generating mechanism and a screw 2; the housing 1 is formed with a drying cavity 11, a hot air cavity 12, a feeding cavity 13 and a material passing channel 14; the cross section of the drying cavity 11 of the embodiment is a square structure, the cross section of the hot air cavity 12 is a rectangular structure, and the feeding cavity 13 is a cylindrical structure; the drying cavity 11, the hot air cavity 12 and the feeding cavity 13 are arranged in sequence from left to right, and the bottom of the drying cavity 11 is communicated with the lower part of the feeding cavity 13 through the material passing channel 14;

[0028] A plurality of layers of left guide plates 3 and a plurality of layers of right guide plates 4 are arranged in the drying cavity 11; each left guide plate 3 is gradually inclined downward along the left-right direction, the left side edge of each left guide plate 3 is connected with the left cavity wall of the drying cavity 11, and all the left guide plates 3 are arranged in the up-down direction; each right guide plate 4 is gradually inclined downward along the right-left direction, the right side edge of each right guide plate 4 is connected with the right cavity wall of the drying cavity 11, and all the right guide plates 4 are arranged in the up-down direction; all the left guide plates 3 correspond to all the right guide plates 4; between the corresponding left guide plate 3 and right guide plate 4, the left side edge of the right guide plate 4 extends to the lower part of the left guide plate 3;

[0029] A plurality of hot air passing holes 15 which communicate the drying cavity 11 and the hot air cavity 12 are formed in the housing 1; all the hot air passing holes 15 are arranged in the up-down direction, and each of two adjacent hot air passing holes 15 is respectively provided with a right guide plate 4;

[0030] The top surface of the housing 1 is formed with a feeding port 16 and a hot air inlet 17; the feeding port 16 communicates the drying cavity 11 with the outside, and the feeding port 16 is above the left guide plate 3; the hot air inlet 17 communicates the hot air cavity 12 with the outside;

[0031] The outlet end of the hot air generating mechanism is communicated with the hot air inlet 17 through a pipeline (the hot air generating mechanism is not shown in the drawing), and the hot air generating mechanism is a kind of existing equipment which is generally composed of a blower and a heating wire, and will not be described in detail here;

[0032] The screw rod 2 is rotatably installed in the feeding cavity 13, and the rotation axis of the screw rod 2 is arranged along the up-down direction, the rotation axis of the screw rod 2 is collinear with the central axis of the feeding cavity 13, and the shell 1 is formed with a discharge port 18 which communicates the upper part of the feeding cavity 13 with the outside; in order to facilitate cleaning the dust and plastic raw materials on the inner bottom surface of the feeding cavity 13, the shell 1 is further formed with a cleaning port which communicates the inner cavity of the feeding cavity 13 with the outside, the cleaning port is arranged close to the inner bottom surface of the feeding cavity 13, and a cover 8 is arranged on the cleaning port, the cover 8 is installed in the cleaning port in a drawer type. The shell 1 of the present drying and feeding device is further connected with a hopper 19 which communicates with the feeding port 16, and a rotatable cover (not shown in the drawing) is arranged on the hopper 19, the cover of the hopper 19 is closed after the plastic raw materials are poured into the hopper 19, so that the hot air in the drying cavity 11 does not flow out from the feeding port 16 during use, the hot air in the drying cavity 11 flows to the feeding cavity 13 and is discharged from the discharge port 18, and the hot air in the feeding cavity 13 flows upwards and is blocked by the screw rod 2, so that the hot air does not carry out too much dust. During use, the plastic raw materials enter the drying cavity 11 from the feeding port 16, and the plastic raw materials flow in the drying cavity 11 in a zigzag shape from top to bottom under the cooperation of the left guide plate 3 and the right guide plate 4; during the flow of the plastic raw materials in the drying cavity 11, the hot air generated by the hot air generating mechanism enters the hot air cavity 12, and the hot air in the hot air cavity 12 is divided into the drying cavity 11 through a plurality of hot air through holes 15 arranged along the up-down direction, so that the plastic raw materials are dried by multiple hot air during the flow in the drying cavity 11, and the plastic raw materials are dried after flowing in the drying cavity 11, the drying time of the plastic raw materials is short, and the drying efficiency is high; finally, the plastic raw materials enter the feeding cavity 13 through the material passage 14, so that the rotation of the screw rod 2 can lift the plastic raw materials and discharge them from the discharge port 18 into the hot melting device of the injection molding machine, which is very convenient to use.

[0033] In order to make the hot air entering the hot air cavity 12 more easily enter the drying cavity 11 through the hot air through hole 15, Figure 2 、 Figure 3 、 Figure 4As shown in the drawings, the hot air cavity 12 is provided with a plurality of air deflectors 5; the right side edge of each air deflector 5 is connected with the right cavity wall of the hot air cavity 12, the left side edge of each air deflector 5 is spaced apart from the left cavity wall of the hot air cavity 12, and each air deflector 5 is gradually inclined downward along the right-left direction, and the included angle γ between the air deflector 5 and the horizontal plane is 15°; all the air deflectors 5 are arranged along the up-down direction, all the air deflectors 5 correspond to all the hot air through holes 15 one by one, and the hot air through hole 15 is a rectangular hole with the length direction along the front-back direction; between the corresponding air deflector 5 and the hot air through hole 15: the air deflector 5 is on the right upper side of the hot air through hole 15, and the upper hole edge of the hole on the left cavity wall of the hot air cavity 12 and the top surface of the air deflector 5 are coplanar. In use, the hot air flows from top to bottom, so that each air deflector 5 can guide the hot air to the direction corresponding to the hot air through hole 15, so that the hot air is more easily introduced into the drying cavity 11 through the hot air through hole 15.

[0034] In order to make the air volume of the hot air entering the drying cavity 11 from each hot air through hole 15 not too different, as shown in Figure 2 , Figure 3 , Figure 4 of the drawings, the left side edge of the air deflector 5 closer to the bottom of the hot air cavity 12 is closer to the left cavity wall of the hot air cavity 12 among all the air deflectors 5.

[0035] In order to further improve the drying efficiency, as shown in Figure 2 , Figure 3 , Figure 4 of the drawings, the hot air through hole 15 below each right material guide plate 4 is arranged to blow air towards the lower surface of the right material guide plate 4. Such design, in use, the hot air passing through the hot air through hole 15 (except the highest hot air through hole 15) will hit the lower surface of the right material guide plate 4 above it, so that the hot air can be guided by the right material guide plate 4, so that the hot air can be blown to the plastic raw material curtain formed by the right material guide plate 4, and then the hot air can be guided to the left material guide plate 3 below, greatly improving the drying efficiency of the plastic raw material.

[0036] As shown in Figure 2 , Figure 3 , Figure 5 of the drawings, the top surface of each left material guide plate 3 is formed with a plurality of bosses 31; each boss 31 is a circular truncated cone structure, and all the bosses 31 on each left material guide plate 3 are spaced apart along the right side edge thereof. In use, the plastic raw material to be dried is in granular structure, and the plastic raw material will be divided after encountering the boss 31, so that the plastic raw material is more easily dried.

[0037] In order to make the plastic raw material quickly enter the feeding cavity 13 from the drying cavity 11, as shown in Figure 2 , Figure 3 of the drawings, the bottom surface of the material passing channel 14 is a downward inclined surface along the left-right direction.

[0038] In order to make the structure of the present drying and feeding device more reasonable, as shown in Figure 2 、 Figure 3 , the angle α between the left guide plate 3 and the horizontal plane is 20°; the angle β between the right guide plate 4 and the horizontal plane is 20°.

[0039] In order to make the plastic raw materials splashed from the drying cavity 11 into the hot air cavity 12 flow out, as shown in Figure 2 、 Figure 3 , the cavity bottom surface of the hot air cavity 12 is a downwardly inclined surface gradually inclined in the left-right direction, and the hot air cavity 12 is formed with a discharging gap 110 along the right side of the cavity bottom, which connects the feeding passage 14 and the hot air cavity 12.

[0040] In order to make the present drying and feeding device more convenient to use, as shown in Figure 1 , the present drying and feeding device further comprises a base frame 6; the shell 1 is mounted on the base frame 6; a walking step 61 is formed on the base frame 6, which is located beside the drying cavity 11.

[0041] In order to make the structure of the present drying and feeding device more reasonable, as shown in Figure 1 , the present drying and feeding device further comprises a driving motor 7, which is fixed relative to the shell 1. The driving motor 7 is generally fixed on the ground and is used to drive the screw rod 2 to rotate.

Claims

1. A dry material loading apparatus, characterized by: The shell is internally formed with a drying cavity, a hot air cavity, a feeding cavity and a passing cavity; the drying cavity, the hot air cavity and the feeding cavity are sequentially arranged from left to right, and the bottom of the drying cavity is communicated with the lower part of the feeding cavity through the passing cavity; A plurality of left guide plates and a plurality of right guide plates are arranged in the drying cavity; each left guide plate is gradually inclined downward along the left-right direction, the left side edge of each left guide plate is connected with the left cavity wall of the drying cavity, and all the left guide plates are arranged along the up-down direction; each right guide plate is gradually inclined downward along the right-left direction, the right side edge of each right guide plate is connected with the right cavity wall of the drying cavity, and all the right guide plates are arranged along the up-down direction; all the left guide plates correspond to all the right guide plates; between the corresponding left guide plate and the right guide plate, the left side edge of the right guide plate extends below the left guide plate; A plurality of hot air passing holes which communicate the drying cavity and the hot air cavity are formed in the shell; all the hot air passing holes are arranged along the up-down direction, and each of two adjacent hot air passing holes is provided with a right guide plate; The top surface of the shell is formed with a feeding port and a hot air inlet; the feeding port communicates the drying cavity with the outside, and the feeding port is above the left guide plate; the hot air inlet communicates the hot air cavity with the outside; The outlet end of the hot air generating mechanism is communicated with the hot air inlet through a pipeline; The screw is rotatably installed in the feeding cavity, and the rotation axis of the screw is arranged along the up-down direction; the shell is formed with a discharging port which communicates the upper part of the feeding cavity with the outside.

2. A drying and feeding device according to claim 1, characterized in that A plurality of air guide plates are arranged in the hot air cavity; the right side edge of each air guide plate is connected with the right cavity wall of the hot air cavity, the left side edge of each air guide plate is spaced apart from the left cavity wall of the hot air cavity, and each air guide plate is gradually inclined downward along the right-left direction; the included angle γ between each air guide plate and the horizontal plane is in the range of 12°-18°; all the air guide plates are arranged along the up-down direction, and all the air guide plates correspond to all the hot air passing holes; between the corresponding air guide plate and the hot air passing hole, the air guide plate is on the right upper side of the hot air passing hole.

3. A dry feeding device according to claim 2, characterized in that Among all the air guide plates, the closer the left side edge of the air guide plate to the bottom of the hot air cavity, the closer the left side edge to the left cavity wall of the hot air cavity.

4. The dry material loading apparatus of claim 1, wherein: The hot air passing hole below each right guide plate is arranged to blow air towards the lower surface of the right guide plate.

5. The dry material loading apparatus of claim 1, wherein: The top surface of each left guide plate is formed with a plurality of bosses; each boss is a circular truncated cone structure, and all the bosses on each left guide plate are spaced apart along the right side edge thereof.

6. A dry feeding device according to claim 1, characterized in that: The bottom surface of the passing cavity is a slope which gradually inclines downward along the left-right direction.

7. A dry feeding device according to claim 1, characterized in that: The included angle α between the left guide plate and the horizontal plane is in the range of 18°-23°; the included angle β between the right guide plate and the horizontal plane is in the range of 18°-23°.

8. A dry material loading apparatus as claimed in claim 1, wherein: The bottom surface of the hot air cavity is a slope which gradually inclines downward along the left-right direction, and the hot air cavity is formed with a discharging gap along the right side edge of the bottom surface; the discharging gap communicates the passing cavity with the hot air cavity.

9. A dry material loading apparatus as claimed in claim 1, wherein: A chassis is further included; the shell is installed on the chassis; a walking step is formed on the chassis, and the walking step is beside the drying cavity.

10. The dry material loading apparatus of claim 1, wherein: A driving motor is further included; the driving motor is fixed relative to the shell, and the driving motor is used to drive the screw to rotate.

Images