Discharging mechanism of low-smoke halogen-free flame-retardant material granulator

Abstract

The utility model relates to the field of grain cutting machines, and discloses a low smoke zero halogen flame retardant grain cutting machine blanking mechanism which comprises a blanking pipeline and an adjusting plate, a mounting flange is welded at one end, far away from a straight pipe, of an inclined pipe, the straight pipe is vertically designed, the lower part of the inclined pipe is obliquely welded at the upper right part of the straight pipe, and the adjusting plate is welded at the upper right part of the straight pipe. A round hole is formed in the front end and the rear end of the middle position of the left side in the straight pipe in a penetrating mode, a rotating shaft is rotationally installed in the round hole, and the left end of an adjusting plate is rotationally installed in the straight pipe through the rotating shaft, so that the discharging speed and number of particles are conveniently controlled, and a collecting device below is conveniently cleaned and replaced; the discharging pipeline is divided into the straight pipe and the inclined pipe, particles can impact the straight pipe after sliding down along the inclined pipe, the adjusting plate is designed in an inclined mode, the falling particles can fall onto the adjusting plate again and slide down along the adjusting plate, the potential energy of the particles is reduced, and splashing caused by the fact that the particles impact a conveying device or a collecting device after falling down is avoided.

Description

Technical Field

[0001] The utility model relates to the field of pelletizers, in particular to a feeding mechanism of a low-smoke, halogen-free fuel-retardant pelletizer. Background Art

[0002] The granulation method of low-smoke halogen-free flame retardant fuel pellets is usually to use an extruder to mix, plasticize and draw the raw materials, and then use a pelletizer to cut the plastic strips into pellets of a certain length. The formed pellets will fall through the outlet of the pelletizer along the discharge pipe to the conveyor or the corresponding collection frame.

[0003] Chinese patent publication No. CN111391172A records a feeding device for a pelletizer, wherein the side wall of the guide tube is fixedly connected to a fixed seat, both sides of the fixed seat are fixedly connected to a first guide rod and a second guide rod, the first guide rod and the second guide rod are slidably connected to a clamping plate, the first guide rod and the second guide rod are fixedly connected to a limiting disk at one end away from the fixed seat, a double-headed threaded rod is penetrated by the side wall of the fixed seat, both ends of the double-headed threaded rod respectively penetrate the clamping plate, and the double-headed threaded rod is threadedly connected to the clamping plate, the double-headed threaded rod is driven to rotate by the rotation of the rotating wheel, and the clamping plate is moved by the rotation of the double-headed threaded rod, thereby fixing the barrel, effectively preventing the barrel from tilting during feeding.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects: the guide pipe in the above-mentioned structure is vertically downward, and there is no corresponding blocking structure. When a collection belt or a collection frame is used for collection, the replacement of the collection belt or the collection frame after it is full will cause the particles to flow downward and flow to the outside. For this reason, we designed a feeding mechanism for a low-smoke halogen-free flame retardant pelletizer. Utility Model Content

[0005] In order to solve the technical problem that replacing a collecting belt or a collecting frame after it is full will cause particles to fall downward and flow to the outside, the utility model provides a feeding mechanism for a low-smoke, halogen-free fuel-resistant pelletizer.

[0006] The utility model is implemented by the following technical scheme: a feeding mechanism of a low-smoke halogen-free flame-retardant fuel pelletizer, comprising a feeding pipe and an adjusting plate, the feeding pipe comprising a straight pipe and an inclined pipe, an end of the inclined pipe away from the straight pipe is welded with a mounting flange, the straight pipe is designed vertically, and the lower part of the inclined pipe is obliquely welded to the upper right side of the straight pipe, a circular hole is formed through the front and rear ends of the left middle position of the straight pipe, a rotating shaft is rotatably installed in the circular hole, and the left end of the adjusting plate is rotatably installed in the straight pipe through the rotating shaft.

[0007] As a further improvement of the above solution, the deflection angle of the adjustment plate is 3-68 degrees, and the lower right end of the adjustment plate is thickened to form a contact portion, which increases the contact area between the adjustment plate and the inner wall of the straight tube, thereby increasing its wear resistance.

[0008] As a further improvement of the above scheme, a baffle seat is provided on the left inner wall of the straight pipe of the discharge pipe. The lower part of the baffle seat is designed with an arc-shaped structure, and the upper surface of the baffle seat is designed to be inclined downward. The left end of the adjustment plate is rotated and placed in the arc structure below the baffle seat. There is a certain gap between the upper left part of the adjustment plate and the left wall of the straight pipe during rotation. The design of the baffle seat can block the gap. After the particles fall above the baffle seat, they will slide down along the adjustment plate and will not enter the gap, thereby not interfering with its normal operation.

[0009] As a further improvement of the above scheme, arc-shaped holes are opened on the front and rear sides of the straight pipe of the discharge pipe, and sealing arc plates are arranged on the front and rear sides of the upper end of the adjustment plate. The sealing arc plates are in sliding contact with the inner walls of the front and rear sides of the straight pipe, and the deflection trajectory of the adjustment plate and the sealing arc plate is consistent with the trajectory of the arc-shaped hole, and can rotate along its trajectory.

[0010] As a further improvement of the above scheme, the centers of the arc hole and the sealing arc plate are colinear with the axis of the rotating shaft, and the arc length of the sealing arc plate is greater than the arc length of the arc hole. When the adjusting plate is deflected along the arc hole, the sealing arc plate can deflect accordingly, and the sealing arc plate can block the arc hole so that the particles inside it will not flow out through the arc hole, thereby improving the sealing performance.

[0011] As a further improvement of the above scheme, a connecting screw is fixed to the front and rear ends of the adjustment plate, and the connecting screw extends outward through the arc hole and is placed outside the straight tube, and a locking nut is threadedly connected to the connecting screw, and a handle is welded on the outer surface of the locking nut, and the locking nut is in sliding contact with the outer surface of the straight tube. The adjustment plate can be moved back and forth along the arc hole through the handle. After moving to the desired position, the locking nut can be tightened by the handle to make it fit tightly against the outer surface of the straight tube to fix it.

[0012] As a further improvement of the above scheme, an air outlet pipe is welded above the inclined pipe of the discharge pipe, the air outlet pipe is connected to the inside of the inclined pipe, and the other end of the air outlet pipe is connected to the air inlet pipe of an external industrial vacuum cleaner. The smoke and dust accompanying the pelletizing of the low-smoke and halogen-free flame retardant material will be sucked away by the industrial vacuum cleaner, which will not cause pollution to the surrounding environment and protect the health of the workers.

[0013] As a further improvement of the above scheme, an air outlet filter is provided at the connection between the air outlet pipe and the inclined pipe, and an air inlet is opened on the front surface of the inclined pipe, and a filter is provided on the air inlet to facilitate the external airflow to enter the interior of the inclined pipe, thereby facilitating the lifting of smoke and dust, and also facilitating the collection of smoke and dust.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model designs an adjustment plate that can deflect left and right inside the straight pipe of the material discharge pipeline, which can control the opening between the adjustment plate and the straight pipe as needed, so as to facilitate the control of the material discharge speed and quantity of the particles, and even close the opening, so as to facilitate the cleaning and replacement of the collection device below;

[0016] 2. The material discharge pipe is divided into a straight pipe and an inclined pipe. After sliding down the inclined pipe, the particles will hit the straight pipe. The adjustment plate is designed to be inclined. After falling, the particles can fall onto the adjustment plate again and slide down along the adjustment plate, reducing its potential energy and avoiding splashing caused by collision between the particles and the conveying device or collection device after falling.

[0017] 3. By setting an air outlet duct above the inclined pipe of the feeding pipe, and connecting the air outlet duct with the air inlet duct of an external industrial vacuum cleaner, the smoke and dust attached to the pelletizing of the low-smoke and halogen-free flame retardant will be sucked away by the industrial vacuum cleaner, which will not pollute the surrounding environment and protect the health of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a feeding mechanism of a low-smoke, halogen-free flame retardant pelletizer provided by the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0020] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 for Figure 1 Side view of

[0022] Figure 5 for Figure 4 Sectional view at the middle BB;

[0023] Figure 6 for Figure 5 Schematic diagram of the adjustment plate after opening and closing.

[0024] Description of main symbols:

[0025] 1. Feeding pipe; 11. Straight pipe; 111. Arc hole; 12. Inclined pipe; 121. Air inlet; 122. Mounting flange; 2. Air outlet pipe; 21. Air outlet filter; 3. Connecting screw; 31. Handle; 4. Adjustment plate; 41. Sealing arc plate; 42. Blocking seat; 43. Contact part; 5. Rotating shaft. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0027] Example:

[0028] Please combine Figure 1-Figure 6 A feeding mechanism of a low-smoke halogen-free flame retardant pelletizer of the present embodiment comprises a feeding pipe 1 and an adjusting plate 4. The feeding pipe 1 comprises a straight pipe 11 and an inclined pipe 12. An end of the inclined pipe 12 away from the straight pipe 11 is welded with a mounting flange 122. The straight pipe 11 is designed vertically, and the lower part of the inclined pipe 12 is obliquely welded to the upper right side of the straight pipe 11. A circular hole is formed through the front and rear ends of the left middle position of the straight pipe 11. A rotating shaft 5 is rotatably installed in the circular hole. The left end of the adjusting plate 4 is rotatably installed in the straight pipe 11 through the rotating shaft 5.

[0029] The deflection angle of the adjustment plate 4 is 3-68 degrees, and the lower right end of the adjustment plate 4 is thickened to form a contact portion 43, which increases the contact area between the adjustment plate 4 and the inner wall of the straight tube 11, thereby increasing its wear resistance.

[0030] A baffle seat 42 is provided on the left inner wall of the straight pipe 11 of the discharge pipe 1. The lower part of the baffle seat 42 is designed with an arc-shaped structure, and the upper surface of the baffle seat 42 is designed to be inclined downward. The left end of the adjusting plate 4 is rotated and placed in the arc-shaped structure below the baffle seat 42. There will be a certain gap between the upper left part of the adjusting plate 4 and the left wall of the straight pipe 11 during rotation. The design of the baffle seat 42 can block the gap. After the particles fall above the baffle seat, they will slide down along the adjusting plate 4 and will not enter the gap, thereby not interfering with its normal operation.

[0031] Arc holes 111 are provided on both the front and rear sides of the straight pipe 11 of the discharge pipe 1, and sealing arc plates 41 are provided on both the front and rear sides of the upper end of the adjustment plate 4. The sealing arc plates 41 are in sliding contact with the inner walls of the front and rear sides of the straight pipe 11. The deflection trajectory of the adjustment plate 4 and the sealing arc plate 41 is consistent with the trajectory of the arc hole 111, and can rotate along its trajectory.

[0032] The centers of the arc hole 111 and the sealing arc plate 41 are both colinear with the axis of the rotating shaft 5, and the arc length of the sealing arc plate 41 is greater than the arc length of the arc hole 111. When the adjustment plate 4 is deflected along the arc hole 111, the sealing arc plate 41 can deflect accordingly, and the sealing arc plate 41 can block the arc hole 111, so that the particles inside it will not flow out through the arc hole 111, thereby improving the sealing performance.

[0033] A connecting screw 3 is fixed to the front and rear ends of the adjustment plate 4. The connecting screw 3 extends outward through the arc hole 111 and is placed outside the straight tube 11. A locking nut is threadedly connected to the connecting screw 3. A handle 31 is welded on the outer surface of the locking nut, and the locking nut is in sliding contact with the outer surface of the straight tube 11. The adjustment plate 4 can be moved back and forth along the arc hole 111 through the handle 31. After moving to the desired position, the locking nut is tightened through the handle 31 to make it fit tightly against the outer surface of the straight tube 11 to fix it.

[0034] An air outlet pipe 2 is welded above the inclined pipe 12 of the discharge pipe 1. The air outlet pipe 2 is connected to the inside of the inclined pipe 12, and the other end of the air outlet pipe 2 is connected to the air inlet pipe of an external industrial vacuum cleaner. The smoke and dust accompanying the pelletizing of the low-smoke and halogen-free flame retardant will be sucked away by the industrial vacuum cleaner, which will not cause pollution to the surrounding environment and protect the health of the workers.

[0035] An air outlet filter 21 is provided at the connection between the air outlet pipe 2 and the inclined pipe 12, and an air inlet 121 is opened on the front surface of the inclined pipe 12, and a filter is provided on the air inlet 121 to facilitate the external airflow to enter the inclined pipe 12, thereby facilitating the lifting and collection of smoke and dust.

[0036] The implementation principle of a low-smoke halogen-free flame retardant pelletizer feeding mechanism in the embodiment of the present application is as follows: in actual use, we fix the feeding pipe 1 on the feeding port of the pelletizer through the mounting flange 122. Since the inclined pipe 12 arranged on the upper part of the feeding pipe 1 is inclined, the particles can slide down along the inclined pipe 12, and finally fall vertically through the straight pipe 11 and fall into the corresponding collecting device for collection. During the feeding process of the particles, we can also turn on the power of the external industrial vacuum cleaner, and the smoke carried in the particles will be sucked away and collected through the air outlet pipe 2. This prevents the smoke from spreading around, ensuring the cleanliness of the environment. When the collecting device below is full and needs to be replaced, the adjusting plate 4 is moved upward by the handle 31 so that the right contact portion 43 of the adjusting plate 4 contacts the right side of the inner wall of the straight tube 11, and then the locking nut is tightened. At this time, the falling particles will be concentrated above the adjusting plate 4, and the collecting device below can be cleaned or replaced, and then the adjusting plate 4 can be unfolded. Similarly, we can also control the feeding speed and quantity of particles by controlling the opening between the adjusting plate 4 and the straight tube 11.

[0037] By designing an adjustment plate 4 that can deflect left and right inside the straight pipe 11 of the discharge pipe 1, the opening between the adjustment plate 4 and the straight pipe 11 can be controlled as needed, thereby facilitating the control of the discharge speed and amount of the particles, and even closing the opening, thereby facilitating the cleaning and replacement of the collection device below;

[0038] The material discharge pipe 1 is divided into a straight pipe 11 and an inclined pipe 12. After the particles slide down the inclined pipe 12, they will hit the straight pipe 11. The adjusting plate 4 is designed to be inclined. After falling, the particles can fall on the adjusting plate 4 again and slide down along the adjusting plate 4, which reduces its potential energy and avoids splashing caused by the collision of the particles with the conveying device or the collecting device after falling.

[0039] By arranging an air outlet pipe 2 above the inclined pipe 12 of the feeding pipe 1, and connecting the air outlet pipe 2 to the air inlet pipe of an external industrial vacuum cleaner, the smoke and dust accompanying the pelletizing of the low-smoke and halogen-free flame retardant will be sucked away by the industrial vacuum cleaner, which will not cause pollution to the surrounding environment and protect the health of the workers.

[0040] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A feeding mechanism for a low-smoke, halogen-free flame retardant pelletizer, comprising a feeding pipe (1) and an adjusting plate (4), characterized in that: The material discharge pipe (1) comprises a straight pipe (11) and an inclined pipe (12); a mounting flange (122) is welded to one end of the inclined pipe (12) away from the straight pipe (11); the straight pipe (11) is designed to be vertical, and the lower part of the inclined pipe (12) is welded obliquely to the upper right side of the straight pipe (11); a circular hole is formed through the front and rear ends of the left middle position of the straight pipe (11); a rotating shaft (5) is rotatably installed in the circular hole, and the left end of the adjustment plate (4) is rotatably installed in the straight pipe (11) through the rotating shaft (5).

2. A low-smoke halogen-free flame retardant pelletizer feeding mechanism as claimed in claim 1, characterized in that: The deflection angle of the adjustment plate (4) is 3-68 degrees, and the lower right end of the adjustment plate (4) is thickened to form a contact portion (43).

3. A low-smoke halogen-free flame retardant pelletizer feeding mechanism as claimed in claim 1, characterized in that: A baffle seat (42) is provided on the left inner wall of the straight pipe (11) of the discharge pipe (1); the lower part of the baffle seat (42) is designed to be an arc-shaped structure, and the upper surface of the baffle seat (42) is designed to be inclined downward; the left end of the adjustment plate (4) is rotated and placed in the arc-shaped structure below the baffle seat (42).

4. A low-smoke halogen-free flame retardant pelletizer feeding mechanism as claimed in claim 1, characterized in that: The straight pipe (11) of the material discharge pipe (1) is provided with arc holes (111) on both the front and rear sides, and the upper end of the adjustment plate (4) is provided with sealing arc plates (41) on both the front and rear sides, and the sealing arc plates (41) are in sliding contact with the inner walls of the straight pipe (11) on both the front and rear sides.

5. A low-smoke halogen-free flame retardant pelletizer feeding mechanism as claimed in claim 4, characterized in that: The centers of the arc-shaped hole (111) and the arc-sealing plate (41) are both colinear with the axis of the rotating shaft (5), and the arc length of the arc-sealing plate (41) is greater than the arc length of the arc-shaped hole (111).

6. A low-smoke halogen-free flame retardant pelletizer feeding mechanism as claimed in claim 5, characterized in that: A connecting screw (3) is fixed to both the front and rear ends of the adjustment plate (4), and the connecting screw (3) passes through the arc-shaped hole (111) and extends outward to be placed outside the straight tube (11), and a locking nut is threadedly connected to the connecting screw (3), a handle (31) is welded to the outer surface of the locking nut, and the locking nut is in sliding contact with the outer surface of the straight tube (11).

7. The low-smoke halogen-free flame retardant pelletizer feeding mechanism according to claim 1, characterized in that: An air outlet pipe (2) is welded above the inclined pipe (12) of the discharge pipe (1), the air outlet pipe (2) is communicated with the interior of the inclined pipe (12), and the other end of the air outlet pipe (2) is connected to the air inlet pipe of an external industrial vacuum cleaner.

8. A low-smoke halogen-free flame retardant pelletizer feeding mechanism as claimed in claim 7, characterized in that: An air outlet filter (21) is provided at the connection between the air outlet pipe (2) and the inclined pipe (12), and an air inlet (121) is provided on the front surface of the inclined pipe (12), and a filter is provided on the air inlet (121).

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