Automatic feeding device for resin production

Abstract

The utility model discloses an automatic feeding device for resin production, which relates to the technical field of feeding devices and comprises a feeding component consisting of a feeding bin, a blanking hopper, a bin gate, a pneumatic push rod, a hoisting notch and a bag breaking blade, the bag breaking blade is fixedly mounted on the inner side of the blanking hopper and used for puncturing ton bags, and the bin gate is arranged on the bin gate. An auxiliary shielding assembly is arranged on the inner side of the feeding bin and used for blocking an opening of the discharging hopper when the bin door is opened, and therefore flying dust in the discharging hopper is shielded. By arranging the auxiliary shielding assembly, when the bin door is opened, the shielding plate blocks the end opening of the discharging hopper, so that raised dust in the discharging hopper is prevented from floating upwards and scattering out through the opening of the feeding bin, and the dustproof effect of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of feeding devices, specifically an automatic feeding device for resin production. Background Technology

[0002] Resin generally refers to an organic polymer that softens or melts when heated, tends to flow under external force when softened, and is solid, semi-solid, or sometimes liquid at room temperature. In resin processing and production, the feeding of resin raw materials requires the use of ton bag feeding stations. Ton bag feeding stations are automatic feeding devices suitable for large-bag packaged materials such as plastic resins and food additives, including dry powders and granular materials. One type of ton bag feeding station unloads material by puncturing the ton bag as it moves downwards. Its working principle is roughly as follows:

[0003] First, the ton bags filled with material are hoisted to the vicinity of the unloading station using a forklift or other lifting equipment. Then, the ton bags are transferred to the unloading hopper using a hoisting device such as an electric hoist. After the hopper door is closed, the hoisting device lowers the ton bags so that they come into contact with the bag-breaking blades. Under the pressure of the ton bags' own weight, the bag-breaking blades puncture the bottom of the ton bags, allowing the material to be discharged and fall to the bottom of the unloading hopper. The material is then conveyed to the next process step, such as a mixing tank or mixer, by a feeding device (such as a screw feeder or pneumatic conveying system) below the unloading hopper. During this process, a large amount of dust is generated. The dust can be drawn into the dust removal device by the negative pressure created by the induced draft fan for treatment, effectively preventing dust pollution of the environment.

[0004] When this ton bag feeding station is in use, the silo door needs to be opened to facilitate the removal of the hoisting device when secondary feeding is required. However, opening the silo door will result in the unloading silo being completely open, at which point dust near the silo door is easily blown out. Therefore, to avoid this situation, an automatic feeding device for resin production is provided. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic feeding device for resin production in order to solve the problems mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding device for resin production, comprising a feeding assembly consisting of a feeding bin, a discharge hopper, a bin door, a pneumatic push rod, a lifting slot, and a bag-breaking blade. The discharge hopper is fixed to the bottom of the feeding bin, the bin door is located at the front end of the feeding bin and is rotatably connected to the feeding bin via a hinge, the two ends of the pneumatic push rod are rotatably connected to the feeding bin and the bin door respectively, and the pneumatic push rod is used to open and close the bin door, the lifting slot is opened at the top of the feeding bin and extends to the front end of the feeding bin, the bag-breaking blade is fixedly installed inside the discharge hopper, and the bag-breaking blade is used to puncture the ton bags, and an auxiliary shielding assembly is provided inside the feeding bin, which is used to seal the opening of the discharge hopper when the bin door is opened, thereby blocking the dust inside the discharge hopper;

[0007] The auxiliary shielding assembly includes a shielding plate, a rotating shaft, a circular slot, a square pressure post, a telescopic post, a spiral groove, a return spring, and a guide block;

[0008] Two baffles are provided, and the two baffles are symmetrically distributed inside the feeding bin. The rotating shaft is fixed to one end of the baffle and passes through the end face of the inner wall of the feeding bin. The baffles are rotatably connected to the feeding bin through the rotating shaft. When the bin door is opened, the two baffles are horizontally aligned to block the hopper port.

[0009] The circular slot is opened inside the baffle plate and passes through the end of the baffle plate away from the rotating shaft. The square pressure column is distributed at the front end of the feeding bin and passes through the front edge of the feeding bin. The telescopic column is fixed to one end of the square pressure column and extends to the inside of the circular slot. The reset spring is distributed inside the circular slot and between one end of the telescopic column and the inner wall end face of the circular slot.

[0010] The spiral groove is formed on the outer side of the telescopic column, and the guide block is fixed to the inner side of the circular groove and slidably connected to the inner side of the spiral groove.

[0011] When the hopper door is closed, it squeezes the square pressure column, which causes the square pressure column and the spiral groove to retract and move inward toward the circular groove hole. The spiral groove cooperates with the guide column block to achieve the flipping of the baffle plate, which is used to release the blockage of the hopper port.

[0012] As a further embodiment of this utility model: a rectangular through groove matching the outer wall of the square pressure column is provided at the front edge of the feeding bin. The outer diameter of the square pressure column is smaller than the outer diameter of the telescopic column, and the outer diameter of the telescopic column matches the inner diameter of the circular groove.

[0013] As a further improvement of this utility model: the spiral angle between the front and rear ends of the spiral groove is ninety degrees, and the entire baffle is made of lightweight plastic.

[0014] As a further improvement of this utility model: the feeding assembly also includes a dust removal port and a dust removal mechanism;

[0015] The dust removal port is located at the rear end of the feeding hopper, and the dust removal mechanism is fixed to the rear end of the baffle plate and is connected to the dust removal port.

[0016] When the baffle is in a horizontal position, it is located below the dust removal port.

[0017] As a further improvement of this utility model: connecting frames are welded and fixed at the four corners of the outer side of the feeding bin, and the connecting frames extend and protrude to the upper and lower ends of the feeding bin;

[0018] Support plates are symmetrically welded and fixed to both sides of the inner wall of the feeding bin, located below the baffle plate.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] By setting up auxiliary shielding components, when the hopper door is open, the shielding plate blocks the hopper port, thereby preventing dust inside the hopper from floating upwards and escaping through the feeding hopper opening, further improving the dustproof effect of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the open state of the compartment door of this utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the rear end of the feeding hopper of this utility model;

[0024] Figure 4 This is a schematic diagram of the auxiliary shielding component of this utility model;

[0025] Figure 5 This is a cross-sectional view of the auxiliary shielding component of this utility model;

[0026] Figure 6 This is a cross-sectional view of the auxiliary shielding component of this utility model.

[0027] In the diagram: 1. Feeding assembly; 101. Feeding bin; 102. Discharge hopper; 103. Bin door; 104. Pneumatic push rod; 105. Lifting slot; 106. Dust removal port; 107. Dust removal mechanism; 108. Bag breaking blade; 109. Support plate; 110. Connecting frame; 2. Auxiliary shielding assembly; 201. Shielding plate; 202. Rotating shaft; 203. Circular slot; 204. Square pressure column; 205. Telescopic column; 206. Spiral groove; 207. Return spring; 208. Guide column block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-6 In this embodiment of the present invention, an automatic feeding device for resin production includes a feeding assembly 1 consisting of a feeding bin 101, a discharge hopper 102, a bin door 103, a pneumatic push rod 104, a lifting slot 105, and a bag-breaking blade 108. The discharge hopper 102 is fixed to the bottom of the feeding bin 101. The bin door 103 is located at the front end of the feeding bin 101 and is rotatably connected to the feeding bin 101 via a hinge. The two ends of the pneumatic push rod 104 are rotatably connected to the feeding bin 101 and the bin door 103, respectively, and the device is activated by pneumatic pushing. The rod 104 is used to open and close the hopper door 103. The hoisting slot 105 is opened at the top of the feeding hopper 101 and extends to the front end of the feeding hopper 101. The bag-breaking blade 108 is fixedly installed inside the hopper 102. The bag-breaking blade 108 is used to puncture the ton bags. An auxiliary shielding component 2 is provided inside the feeding hopper 101. The auxiliary shielding component 2 is used to block the opening of the hopper 102 when the hopper door 103 is opened, thereby blocking the dust inside the hopper 102.

[0030] The auxiliary shielding component 2 includes a shielding plate 201, a rotating shaft 202, a circular slot 203, a square pressure post 204, a telescopic post 205, a spiral groove 206, a return spring 207, and a guide block 208;

[0031] Two baffles 201 are provided, and the two baffles 201 are symmetrically distributed inside the feeding bin 101. The rotating shaft 202 is fixed to one end of the baffle 201 and passes through the inner wall end face of the feeding bin 101. The baffles 201 are rotatably connected to the feeding bin 101 through the rotating shaft 202. When the bin door 103 is opened, the two baffles 201 are horizontally aligned to block the port of the hopper 102.

[0032] The circular slot 203 is opened inside the baffle plate 201 and passes through the end of the baffle plate 201 away from the rotating shaft 202. The square pressure column 204 is distributed at the front end of the feeding bin 101 and passes through the front edge of the feeding bin 101. The telescopic column 205 is fixed to one end of the square pressure column 204 and extends to the inside of the circular slot 203. The return spring 207 is distributed inside the circular slot 203 and between one end of the telescopic column 205 and the inner wall end face of the circular slot 203.

[0033] The spiral groove 206 is formed on the outer side of the telescopic column 205, and the guide block 208 is fixed to the inner side of the circular groove hole 203 and slidably connected to the inner side of the spiral groove 206.

[0034] When the hopper door 103 is closed, it presses against the square pressure column 204, which causes the square pressure column 204 and the spiral groove 206 to retract and move inward toward the circular groove hole 203. The spiral groove 206 cooperates with the guide block 208 to achieve the flipping of the baffle plate 201, which is used to release the blockage on the port of the hopper 102.

[0035] In this embodiment, it should be noted that the hoisting slot 105 is used to provide a passage for the hoisting rope of the hoisting equipment (e.g., electric hoist). A dustproof curtain is installed on the top of the inner wall of the feeding bin 101 around the hoisting slot 105 to prevent dust from leaking out from this location.

[0036] When feeding resin, the pneumatic push rod 104 can be operated to retract, thereby pulling the silo door 103 to rotate and open. As the silo door 103 rotates away from the opening of the feeding silo 101, the silo door 103 releases the pressure on the square pressure column 204. At this time, the directional pressure column 204 and the telescopic column 205 move outward under the elastic force of the return spring 207 (it should be noted that the return spring 207 is initially in a compressed state).

[0037] When the telescopic column 205 moves outward, it squeezes the guide column block 208 through the spiral groove 206, causing the guide column block 208 to deflect. The guide column block 208 drives the baffle plate 201 to flip to a horizontal state (it should be noted that the guide column block 208 and the baffle plate 201 are initially in a vertical state). The two baffle plates 201 are horizontally aligned and attached to seal the opening of the hopper 102, thus preventing the dust inside the hopper 102 from continuing to drift upward, which can effectively reduce the situation of dust scattering outward.

[0038] Once the hopper door 103 is fully opened, the ton bag filled with material can be lifted by the hoisting equipment and transferred into the feeding hopper 101. Then, the pneumatic push rod 104 is activated to close the hopper door 103. When the hopper door 103 closes and approaches the opening of the feeding hopper 101, it contacts the square pressure column 204 and compresses it. Under this compressive force, the square pressure column 204 contracts and pushes the telescopic column 205 to contract synchronously. The telescopic column 205 moves and compresses the guide column block 208 through the spiral groove 206, causing it to deflect. At this time, the guide column block 208 and the baffle plate 201 deflect upward by 90 degrees, thus removing the obstruction to the feeding hopper 102. Then, the ton bag is slowly lowered by the hoisting equipment until the bottom of the ton bag contacts the bag-breaking blade 108. Under the compression of the ton bag's own weight, the bag-breaking blade 108 punctures the ton bag, and the material falls into the feeding hopper 102. Then, it is transported to the next process step by the feeding device installed at the bottom of the feeding hopper 102.

[0039] The above operation is then repeated to realize the material feeding operation. Through the cooperation of the above multiple parts, the hopper 102 is in a blocked state when the hopper door 103 is open, thereby preventing the dust inside the hopper 102 from floating upward and escaping through the opening of the feeding bin 101, further improving the dust prevention effect of the device.

[0040] Please refer to this carefully. Figures 1-2 The feeding assembly 1 also includes a dust removal port 106 and a dust removal mechanism 107;

[0041] Dust removal port 106 is located at the rear end of feeding hopper 101, and dust removal mechanism 107 is fixed to the rear end of baffle plate 201 and communicates with dust removal port 106.

[0042] When the baffle plate 201 is in a horizontal position, it is located below the dust collection port 106.

[0043] In this embodiment, it should be noted that the dust removal mechanism 107 consists of a suction channel, a filter cartridge, and an induced draft fan. The induced draft fan generates suction, which is transmitted to the inside of the feeding hopper 101 through the suction channel and the dust removal port 106. This suction is used to remove dust generated during the unloading process and prevent dust from spreading. The filter cartridge is used to filter the dust. This part of the structure is a common structure in the prior art, so it is not described in detail.

[0044] During the opening of the silo door 103, when the silo door 103 is opened to a small angle, the baffle 201 completes the downward flipping action. After that, the silo door 103 continues to open, and the baffle 201 remains in a horizontal state. During this process, the dust removal mechanism 107 remains in operation, so that the dust inside the feeding silo 101 can be fully sucked away.

[0045] Please refer to this carefully. Figures 1-6 The front edge of the feeding bin 101 is provided with a rectangular through groove that matches the outer wall of the square pressure column 204. The outer diameter of the square pressure column 204 is smaller than the outer diameter of the telescopic column 205. The outer diameter of the telescopic column 205 matches the inner diameter of the circular slot 203.

[0046] In this embodiment: the rectangular through slot can limit the rotation of the square pressure column 204, so that the square pressure column 204 can only move horizontally and cannot rotate;

[0047] The structure that the outer diameter of the square pressure column 204 is smaller than the outer diameter of the telescopic column 205 ensures that the square pressure column 204 will not collide with the inner wall of the circular slot 203 when it enters the circular slot 203. At the same time, this structure can limit the outward movement distance of the square pressure column 204.

[0048] Please refer to this carefully. Figures 5-6The spiral angle between the front and rear ends of the spiral groove 206 is 90 degrees, and the entire baffle plate 201 is made of lightweight plastic.

[0049] In this embodiment: by making the spiral angle between the front and rear ends of the spiral groove 206 ninety degrees, the deflection angle of the baffle plate 201 and the guide block 208 can be 90 degrees, thus enabling the switching between the vertical and horizontal states of the baffle plate 201.

[0050] The overall weight of the baffle plate 201 is relatively light, which is used to reduce the frictional resistance between the guide block 208 and the spiral groove 206, so that the device can maintain stable operation for a long time.

[0051] Please refer to this carefully. Figures 1-2 Connecting frames 110 are welded and fixed at the four corners of the outer side of the feeding bin 101, and the connecting frames 110 extend and protrude to the upper and lower ends of the feeding bin 101.

[0052] Support plates 109 are symmetrically welded and fixed to both sides of the inner wall of the feeding bin 101 below the baffle plate 201.

[0053] In this embodiment: the support plate 109 is used to provide support for the horizontal state of the shielding plate 201;

[0054] The connecting frame 110 is used to provide an installation position for hoisting equipment (e.g., an electric hoist). At the same time, an external bracket can be installed at the bottom of the connecting frame 110 so that the bottom of the hopper 102 is higher than the ground, so as to facilitate the installation of the feeding device.

[0055] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic feeding device for resin production, comprising a feeding assembly (1) composed of a feeding bin (101), a hopper (102), a bin door (103), a pneumatic push rod (104), a hoisting notch (105), and a bag breaking blade (108), the hopper (102) is fixed to the bottom end of the feeding bin (101), the bin door (103) is distributed at the front end of the feeding bin (101) and is connected to the feeding bin (101) through a hinge, the two ends of the pneumatic push rod (104) are respectively connected to the feeding bin (101) and the bin door (103), and the pneumatic push rod (104) is used to open and close the bin door (103), the hoisting notch (105) is opened at the top of the feeding bin (101) and penetrates to the front end of the feeding bin (101), and the bag breaking blade (108) is fixedly installed on the inner side of the hopper (102), and the bag breaking blade (108) is used for puncturing tons of bags, characterized in that, The inner side of the feeding bin (101) is provided with an auxiliary shielding assembly (2), which is used for plugging the opening of the lower hopper (102) when the bin door (103) is opened, so as to shield the dust inside the lower hopper (102). The auxiliary shielding assembly (2) comprises shielding plates (201), shafts (202), circular groove holes (203), square pressing columns (204), telescopic columns (205), spiral grooves (206), return springs (207) and guide column blocks (208). The two shielding plates (201) are symmetrically distributed on the inner side of the feeding bin (101), the shaft (202) is fixed to one end of the shielding plate (201) and penetrates the end face of the inner wall of the feeding bin (101), and the shielding plate (201) is rotationally connected to the feeding bin (101) through the shaft (202). The circular groove hole (203) is provided in the shielding plate (201) and penetrates one end of the shielding plate (201) away from the shaft (202), the square pressing column (204) is distributed at the front end of the feeding bin (101) and penetrates the front edge of the feeding bin (101), the telescopic column (205) is fixed to one end of the square pressing column (204) and extends to the inside of the circular groove hole (203), and the return spring (207) is distributed between one end of the telescopic column (205) and the inner wall end face of the circular groove hole (203). The spiral groove (206) is provided on the outer wall side of the telescopic column (205), and the guide column block (208) is fixed to the inner wall side of the circular groove hole (203) and slidingly connected to the inside of the spiral groove (206). When the bin door (103) is closed, the square pressing column (204) is extruded, so that the square pressing column (204) and the spiral groove (206) move inwards in the circular groove hole (203), and the spiral groove (206) and the guide column block (208) are matched to realize the overturning of the shielding plate (201) and to release the plugging of the port of the lower hopper (102).

2. The automatic feeding device for resin production according to claim 1, characterized by The front edge of the feeding bin (101) is provided with a rectangular through groove matched with the outer wall of the square pressing column (204), the outer diameter of the square pressing column (204) is smaller than the outer diameter of the telescopic column (205), and the outer diameter of the telescopic column (205) is matched with the inner diameter of the circular groove hole (203).

3. The automatic feeding device for resin production according to claim 1, characterized by The spiral angle between the front and rear ends of the spiral groove (206) is ninety degrees.

4. The automatic feeding device for resin production according to claim 1, characterized by The feeding assembly (1) further comprises a dust removal port (106) and a dust removal mechanism (107). The dust removal port (106) is provided at the rear end of the feeding bin (101), and the dust removal mechanism (107) is fixed to the rear end of the shielding plate (201) and in communication with the dust removal port (106). The shielding plate (201) is located below the dust removal port (106) in the horizontal state.

5. The automatic resin feeding device according to claim 1, wherein The feeding bin (101) is welded and fixed with connecting frames (110) at four outer corner positions, the connecting frames (110) extend to the upper and lower ends of the feeding bin (101); The feeding bin (101) is welded and fixed with support plates (109) on the two sides of the inner wall below the shielding plates (201).

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