CN211307150U - Feeding device of heater - Google Patents

Abstract

The utility model relates to a feeding device for a heating machine, which comprises a feeding hopper. A discharging port is provided at the lower end of the feeding hopper. The discharging port is connected with a conveying pipe. The conveying pipe is arranged horizontally. In the discharge direction, the lower end wall of one end of the conveying pipe is provided with a feeding port, which is connected to the feeding port of the heater. A screw conveyor is arranged in the conveying pipe along the horizontal direction. The screw conveyor includes a first rotating shaft for driving the first rotating shaft. A motor for rotating the rotating shaft and a propeller blade fixed on the first rotating shaft along the axial direction of the first rotating shaft. The mixed raw materials are transported to the feed hopper as a transfer, and there is an upper limit on the amount of raw materials transported by the propeller blades each time, so that the raw materials will not be poured into the heating machine at one time, and uniform feeding is achieved.

Description

A heater feeding device

technical field

The utility model relates to the technical field of plastic sheet processing equipment, in particular to a heating machine feeding device.

Background technique

The production process of the plastic sheet is as follows: the solid granular plastic raw material and the blowing agent are pressurized, heated and melted in the screw barrel to form a mixed melt. After cutting the mechanism, it is transported to the operating table. After the mixed raw materials are stirred, they need to be fed into a heating machine through a feeding device for hot melting.

Existing plastic plate heating equipment, such as a powder hot-melting device disclosed in the bulletin number CN204122091U, includes a feeding system, a melting device, a heating system and a discharging system, and the feeding pipe is sleeved on the auxiliary material feeding hopper. It is connected with the feeding port, the lower end of the feeding port is provided with a mixing chamber, the mixing chamber is provided with a nozzle, the mixing chamber is connected with the hot-melt plate, and one end of the upper pressing plate and the lower pressing plate is provided with a heating conveying pipe. The conveying pipe is connected with the heater, and the heating system transmits the heat source to the melting device through the heating conveying pipe. The device is directly fed into the mixing chamber through the feed port for heating, and discharged through the discharge system.

The above-mentioned prior art scheme has the following defects: because the feeding port is directly connected to the heating machine, the mixed raw materials are directly poured into the heating machine in piles when feeding, which easily leads to uneven feeding and makes the raw material hot-melting effect. Difference.

Utility model content

Aiming at the deficiencies of the prior art, one of the objectives of the present invention is to provide a heating machine feeding device with uniform feeding.

The above-mentioned utility model purpose of the present utility model is achieved through the following technical solutions:

A heating machine feeding device includes a feeding hopper, a discharge port is provided at the lower end of the feeding hopper, and a conveying pipe is connected with the discharging port, the conveying pipe is arranged horizontally, and the axis of the conveying pipe is perpendicular to the In the discharge direction of the feeding hopper, the lower end wall of one end of the conveying pipe is provided with a feeding port, the feeding port is connected to the feeding port of the heater, and a screw conveyor is arranged in the conveying pipe along the horizontal direction. The conveyor includes a first rotating shaft, a motor for driving the first rotating shaft to rotate, and a propeller blade axially fixed on the first rotating shaft along the first rotating shaft.

By adopting the above technical solution, the mixed raw materials are transported to the feeding hopper as a transfer, the raw materials are discharged into the conveying pipeline through the discharge port at the lower end of the feeding hopper, and the first rotating shaft in the conveying pipeline is driven by the motor to rotate continuously. , thereby driving the propeller blade fixedly connected to the first rotating shaft to rotate, and driving a certain amount of raw material each time through the rotation of the propeller blade, and pushing it to the feeding port of the conveying pipeline in the horizontal direction, the raw material is pushed to the feeding port due to the action of gravity It falls into the heating machine for hot melting, and there is an upper limit on the amount of raw materials conveyed by the propeller blades each time, so that the raw materials will not be poured into the heating machine at one time, and uniform feeding is achieved, thereby achieving the purpose of the invention.

In a preferred example of the present invention, it can be further configured as follows: the feed hopper penetrates along its radial direction and is rotatably connected with a second rotating shaft, the second rotating shaft is provided with a first stirring plate, and the second rotating shaft is provided with a first stirring plate. One end of the rotating shaft is penetrated through the feeding hopper and is exposed outside the feeding hopper, and one end of the second rotating shaft exposed outside the feeding hopper is provided with a driving component for driving the second rotating shaft to rotate.

By adopting the above-mentioned technical solution, the second rotating shaft pierced along the radial direction of the feeding hopper is driven to rotate by the driving component, so that the first stirring plate fixedly installed on the second rotating shaft further agitates the raw materials mixed in the feeding hopper, so that the The raw materials in the feed hopper are more fully mixed.

In a preferred example of the present invention, it can be further configured as follows: a side of the feeding hopper away from the driving component is fixedly provided with a rotating seat along its radial direction, and the rotating seat is hollow and forms a rotating seat for erecting the second rotating shaft The rotating cavity is connected to the inner cavity of the feeding hopper, and one end of the second rotating shaft away from the driving component is embedded and rotatably connected to the rotating cavity.

By adopting the above technical solution, the end of the second rotating shaft away from the drive assembly is erected in the rotating cavity opened by the rotating seat, so that the second rotating shaft has two support points, and the stability of the second rotating shaft when rotating is improved.

In a preferred example of the present invention, it can be further configured as follows: the drive assembly includes a first sprocket fixed on the first rotating shaft, a second sprocket fixed on the second rotating shaft and exposed outside the feeding hopper, and A first chain for interlocking the first sprocket with the second sprocket.

By adopting the above technical solution, the motor drives the first rotating shaft to rotate, and the first rotating shaft links the first sprocket fixed on the first rotating shaft with the second sprocket fixed on the second rotating shaft through the first chain. An independent driving source is provided for the second rotating shaft, which improves the economic benefit, and realizes the linkage between the first rotating shaft and the second rotating shaft through the chain drive, with high transmission efficiency and high transmission power, which improves the stirring effect of the first stirring plate. .

In a preferred example of the present invention, it can be further configured as follows: the second rotating shaft is sleeved with a third rotating shaft, the second rotating shaft is coaxial with the third rotating shaft, and the third rotating shaft is rotatably connected to the second rotating shaft, The first rotating shaft is fixedly connected with the first gear, the conveying pipeline is fixedly provided with a fixed seat, the fixed seat is rotatably connected with a fourth rotating shaft through a bearing, and the axis of the fourth rotating shaft is parallel to the axis of the first rotating shaft, so A second gear is fixedly sleeved on the fourth rotating shaft, the first gear is meshed with the second gear, a third sprocket is fixedly sleeved on the fourth rotating shaft, and a third sprocket is fixedly sleeved on the third rotating shaft. Four sprockets, a second chain for linking the third sprocket and the fourth sprocket is arranged between the third sprocket and the fourth sprocket, and a second stirring plate is fixed on the third rotating shaft.

By adopting the above technical solution, a third rotating shaft is arranged and rotatably connected to the second rotating shaft, the first gear is driven to rotate by the rotation of the first rotating shaft, and the first gear drives the second gear on the fourth rotating shaft to rotate through the meshing with the second gear. The second gear drives the fourth shaft to rotate, the fourth shaft drives the third sprocket coaxial with the second gear to rotate synchronously, and the third sprocket realizes linkage with the fourth sprocket through the second chain to drive the third shaft. Rotate along its axis, so that the third rotating shaft and the second rotating shaft are coaxially reversed, so that the first stirring plate and the second stirring plate respectively fixed on the second rotating shaft and the third rotating shaft are reversely stirred, so that the mixing in the hopper The raw materials are stirred more fully.

In a preferred example of the present invention, the number of teeth of the first sprocket can be further configured to be smaller than the number of teeth of the second sprocket.

By adopting the above technical solution, because the conveying speed of the screw conveyor in the conveying pipeline is relatively fast, the required rotation speed of the first rotating shaft is larger, and when the second rotating shaft located in the feeding hopper rotates, the first rotating shaft on the second rotating shaft rotates. The stirring plate stirs in the raw material. If the rotation speed of the second rotating shaft is too large, the torsion force on the second rotating shaft will be greater, which will easily cause damage to the second rotating shaft, and the second rotating shaft does not need to rotate at a high speed during stirring, and passes through the first sprocket. When the number of teeth is smaller than the number of teeth of the second sprocket, the speed of the second rotating shaft is reduced, and the service life of the second rotating shaft and the first stirring plate is improved.

In a preferred example of the present invention, it can be further configured as follows: the lower end flange of the feeding hopper is connected to the feeding port of the conveying pipeline.

By adopting the above technical solution, the raw materials are likely to remain on the inner wall of the feeding hopper after long-term use. The flange of the feeding hopper is connected to the conveying pipeline, which has a good mechanical sealing effect during use, and is convenient for the feeding hopper. Disassemble and clean.

In a preferred example of the present invention, it can be further configured that: an observation window for observing the condition of the powder in the feeding hopper is provided on the feeding hopper.

By adopting the above technical solution, an observation window is provided on the feeding hopper, so that the staff can clearly observe the stock of raw materials in the feeding hopper, and it is convenient for the staff to control the feeding speed.

To sum up, the present utility model includes at least one of the following beneficial technical effects:

1. The raw materials are fed in batches by the spiral blade between the feeding hopper and the heating machine, so that the feeding is uniform and the raw materials are heated evenly in the heating machine;

2. By setting the second rotating shaft and the third rotating shaft in the feeding hopper to continuously and reversely stir the raw materials in the feeding hopper, so that the raw materials are mixed more fully;

3. Improve the stability of the second shaft when it rotates.

Description of drawings

Fig. 1 is the overall structure schematic diagram of this embodiment;

Fig. 2 is the overall cross-sectional schematic diagram of the present embodiment;

Fig. 3 is the partial enlarged schematic diagram of A part in Fig. 2;

Fig. 4 is a partial enlarged schematic view of part B in Fig. 1;

FIG. 5 is a partial enlarged schematic view of part C in FIG. 1 .

In the figure, 1, feed hopper; 11, discharge port; 12, rotating seat; 121, rotating cavity; 13, flange plate; 131, fixing bolt; 132, fixing nut; 14, observation window; 2, conveying pipeline ; 21, feeding port; 3, screw conveyor; 31, first shaft; 311, first gear; 32, motor; 33, propeller blade; 4, stirring assembly; 41, second shaft; 411, first stirring plate 42, the third shaft; 421, the second stirring plate; 422, the fourth sprocket; 5, the drive assembly; 51, the first sprocket; 52, the second sprocket; 53, the first chain; 6, the fixed seat ; 61, the fourth shaft; 611, the second gear; 612, the third sprocket; 613, the second chain; 7, the bracket.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, it is a heater feeding device disclosed by the utility model, including a feeding hopper 1, a conveying pipeline 2 for conveying raw materials, and conveying the raw materials discharged from the feeding hopper 1 to the heating machine for feeding The screw conveyor 3 at the mouth (not shown in the figure), and the stirring assembly 4 for stirring the inside of the feeding hopper 1. The lower end of the feeding hopper 1 is provided with a discharge port 11 , and the conveying pipeline 2 is connected to the discharge port 11 . The conveying pipe 2 is arranged horizontally and is perpendicular to the discharging direction of the feeding hopper 1 and the feeding direction of the heating machine at the same time. 2 , the screw conveyor 3 includes a first rotating shaft 31 , a motor 32 for driving the first rotating shaft 31 to rotate, and a propeller blade 33 fixed on the first rotating shaft 31 . A feeding port 21 is opened on the lower end wall of one end of the conveying pipe 2 away from the discharging port 11 of the feeding hopper 1, and the feeding port 21 is communicated with the feeding port of the heater. The feeding hopper 1 is provided with an observation window 14 for observing the powder condition in the feeding hopper 1 . The feeding hopper 1 is provided with a bracket 7 for supporting the feeding hopper 1 .

The mixed raw materials are transported to the feeding hopper 1 as a transfer. When the raw materials are in the feeding hopper 1, the stirring component 4 is continuously stirred in the feeding hopper 1, so that the raw materials are further mixed in the feeding hopper 1. The raw material is dropped into the conveying pipe 2 through the discharge port 11 at the lower end of the feeding hopper 1, and the motor 32 drives the first rotating shaft 31 in the conveying pipe 2 to rotate continuously, so that the propeller blade 33 on the first rotating shaft 31 will be removed from the feeding hopper. 1. The raw material discharged from the discharge port 11 is pushed to the feeding port 21 of the conveying pipeline 2. After the raw material is pushed to the feeding port 21, it falls into the heating machine for hot melting due to the action of gravity. When the feeding hopper 1 is feeding, the remaining material in the feeding hopper 1 can be observed through the observation window 14, which is convenient for the staff to control the feeding speed.

2 , the stirring assembly 4 includes a second rotating shaft 41 , a first stirring plate 411 fixed on the second rotating shaft 41 , a third rotating shaft 42 and a second stirring plate 421 fixed on the third rotating shaft 42 . The second rotating shaft 41 is sheathed with a third rotating shaft 42 , the second rotating shaft 41 is coaxial with the third rotating shaft 42 , and the third rotating shaft 42 is rotatably connected to the second rotating shaft 41 .

Referring to FIG. 2 , one end of the second rotating shaft 41 is penetrated through the feeding hopper 1 and exposed outside the feeding hopper 1 , and one end of the second rotating shaft 41 exposed outside the feeding hopper 1 is provided with a driving component for driving the second rotating shaft 41 to rotate. 5. The drive assembly 5 includes a first sprocket 51 fixed on the first rotating shaft 31 , a second sprocket 52 fixed on the second rotating shaft 41 and exposed outside the feed hopper 1 , and a second sprocket 52 for connecting the first sprocket 51 with the second sprocket 51 . The first chain 53 is linked by the two sprockets 52 . The number of teeth of the first sprocket 51 is smaller than that of the second sprocket 52 .

Referring to FIG. 3 , the side of the feeding hopper 1 away from the drive assembly 5 is fixedly provided with a rotating seat 12 along its radial direction. The rotating seat 12 is hollow and forms a rotating cavity 121 for erecting the second rotating shaft 41 , and the rotating cavity 121 communicates with the feeding material. In the inner cavity of the bucket 1 , one end of the second rotating shaft 41 away from the driving assembly 5 is embedded and rotatably connected to the rotating cavity 121 .

The first rotating shaft 31 is driven to rotate by the motor 32 , and the first sprocket 51 on the first rotating shaft 31 drives the second rotating shaft 41 and the second sprocket 52 on the second rotating shaft 41 to rotate through the first chain 53 . The second rotating shaft 41 is erected in the feeding hopper 1 through the rotating cavity 121 , and is driven to rotate by the driving assembly 5 .

The conveying speed of the screw conveyor 3 in the conveying pipeline 2 is relatively fast, and the required rotational speed of the first rotating shaft 31 is relatively large. When the second rotating shaft 41 in the feeding hopper 1 rotates, the first stirring plate 411 on the second rotating shaft 41 stirs the raw material. If the rotating speed of the second rotating shaft 41 is too large, the more torque the second rotating shaft 41 bears. If it is large, it is easy to cause damage to the second rotating shaft 41 . In addition, the second rotating shaft 41 does not need to rotate at a high speed during agitation, and the second rotating shaft 41 is decelerated because the number of teeth of the first sprocket 51 is smaller than the number of teeth of the second sprocket 52 .

Referring to FIG. 4 , a fourth sprocket 422 is fixedly sleeved at one end of the third shaft 42 exposed at the feed port. The first rotating shaft 31 is fixedly connected with the first gear 311, the conveying pipe 2 is fixedly provided with a fixed seat 6, and the fixed seat 6 is rotatably connected with a fourth rotating shaft 61 through a bearing, the axis of the fourth rotating shaft 61 is parallel to the axis of the first rotating shaft 31, A second gear 611 is fixedly sleeved on the fourth rotating shaft 61 , the first gear 311 meshes with the second gear 611 , a third sprocket 612 is fixedly sleeved on the fourth rotating shaft 61 , and the third sprocket 612 and the fourth sprocket 422 A second chain 613 for linking the third sprocket 612 and the fourth sprocket 422 is provided therebetween.

The motor 32 drives the first rotating shaft 31 to rotate, the first gear 311 on the first rotating shaft 31 rotates, and drives the second gear 611 meshed with the first gear 311 to rotate in the opposite direction, and the second gear 611 drives the second gear 611 to be coaxial with the second gear 611 The fixed third sprocket 612 rotates in reverse synchronously, and the third sprocket 612 drives the fourth sprocket 422 and the third rotating shaft 42 to rotate in the reverse direction through the second chain 613, so that the second stirring plate 421 on the third rotating shaft 42 is in the reverse direction. The stirring in the opposite direction to the first stirring plate 411 fully stirs the powder in the feeding hopper 1 .

Referring to FIG. 5 , the lower end of the feeding hopper 1 and the feeding port of the conveying pipeline 2 are fixedly provided with a flange 13 . The flange 13 is provided with a number of fixing bolts 131 in the vertical direction, and the fixing bolts 131 pass through the two-piece method. The flange 13 is screwed with a fixing nut 132 .

After the feeding of the feeding hopper 1 is completed, the powder is likely to remain on the inner wall of the feeding hopper 1. The feeding hopper 1 can be disassembled by taking out the fixing bolts 131 fixing the flange 13 to facilitate the cleaning of the feeding hopper 1. powder residue inside.

The implementation principle of this embodiment is:

1. The powder is fed into the feeding hopper 1, and the first stirring plate 411 and the second stirring plate 421 respectively provided on the second rotating shaft 41 and the third rotating shaft 42 are reversely stirred for stirring.

2. The first rotating shaft 31 is driven to rotate by the motor 32 , the first sprocket 51 on the first rotating shaft 31 drives the second rotating shaft 41 and the second sprocket 52 on the second rotating shaft 41 to rotate through the first chain 53 . The second rotating shaft 41 is erected in the feeding hopper 1 through the rotating cavity 121 , and is driven to rotate by the driving assembly 5 .

3. The motor 32 drives the first shaft 31 to rotate, the first gear 311 on the first shaft 31 rotates, and drives the second gear 611 meshed with the first gear 311 to rotate in reverse, and the second gear 611 drives the second gear 611. The coaxially fixed third sprocket 612 rotates synchronously and reversely. The third sprocket 612 drives the fourth sprocket 422 and the third rotating shaft 42 to rotate in the reverse direction through the second chain 613 , so that the second stirring plate on the third rotating shaft 42 is rotated. 421 is agitated in the opposite direction to the first stirring plate 411 to fully stir the powder in the feeding hopper 1 .

4. The powder is stirred in the feeding hopper 1, and is discharged from the lower discharge port 11 into the conveying pipe 2. The motor 32 drives the first rotating shaft 31 in the conveying pipe 2 to rotate continuously, so that the first rotating shaft 31 is on the The propeller blade 33 pushes the raw material discharged from the discharge port 11 of the feeding hopper 1 to the feeding port 21 of the conveying pipe 2 . After the raw material is pushed to the feeding port 21, it falls into the heating machine for hot melting due to the action of gravity.

The examples of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention are not It should be covered within the protection scope of the present invention.

Claims (8)

1. A heater feed arrangement which characterized in that: including feeder hopper (1), discharge gate (11) have been seted up to feeder hopper (1) lower extreme, discharge gate (11) intercommunication has pipeline (2), pipeline (2) are the level setting, pipeline (2) axis perpendicular to feeder hopper (1) the ejection of compact direction, pay-off mouth (21) have been seted up to the lower terminal wall of pipeline (2) one end, pay-off mouth (21) communicate in the heater feed inlet, be provided with screw conveyer (3) along the horizontal direction in pipeline (2), screw conveyer (3) include first pivot (31), be used for driving first pivot (31) pivoted motor (32) and locate propeller blade (33) on first pivot (31) along first pivot (31) axial fixity.

2. A heater feeder according to claim 1, wherein: feeder hopper (1) radially wears to establish and rotates along it and is connected with second pivot (41), be equipped with first stirring board (411) on second pivot (41), feeder hopper (1) is worn to locate and exposes outside feeder hopper (1) second pivot (41) one end, second pivot (41) expose and are equipped with and are used for driving second pivot (41) pivoted drive assembly (5) in the outer one end of feeder hopper (1).

3. A heater feeder according to claim 2, wherein: one side that drive assembly (5) were kept away from in feeder hopper (1) is equipped with along its radial fixation and rotates seat (12), rotate seat (12) cavity and form rotation chamber (121) that are used for erectting second pivot (41), rotate chamber (121) intercommunication feeder hopper (1) inner chamber, the one end that drive assembly (5) were kept away from in second pivot (41) inlays to establish and rotates to be connected in rotation chamber (121).

4. A heater feeder according to claim 2, wherein: the driving assembly (5) comprises a first chain wheel (51) fixedly arranged on the first rotating shaft (31), a second chain wheel (52) fixedly arranged on the second rotating shaft (41) and exposed out of the feed hopper (1), and a first chain (53) used for enabling the first chain wheel (51) and the second chain wheel (52) to be in linkage.

5. A heater feeder according to claim 4, wherein: second pivot (41) overcoat is equipped with third pivot (42), second pivot (41) are coaxial with third pivot (42), third pivot (42) rotate to be connected in second pivot (41), first pivot (31) fixedly connected with first gear (311), fixed fixing base (6) that are equipped with on pipeline (2), fixing base (6) rotate through the bearing and are connected with fourth pivot (61), fourth pivot (61) axis is parallel with first pivot (31) axis, fixed cover is equipped with second gear (611) on fourth pivot (61), first gear (311) and second gear (611) meshing, fixed cover is equipped with third sprocket (612) on fourth pivot (61), fixed cover is equipped with fourth sprocket (422) on third pivot (42), be equipped with the second chain that is used for linkage third sprocket (612) and fourth sprocket (422) between third sprocket (612) and fourth sprocket (422), be equipped with the second chain that is used for linking third sprocket (612) and fourth sprocket (422) (613) And a second stirring plate (421) is fixedly arranged on the third rotating shaft (42).

6. A heater feeder according to claim 4, wherein: the number of teeth of the first chain wheel (51) is less than that of the second chain wheel (52).

7. A heater feeder according to claim 1, wherein: the lower end of the feed hopper (1) is connected with a feed inlet of the conveying pipeline (2) in a flange mode.

8. A heater feeder according to claim 1, wherein: the feed hopper (1) is provided with an observation window (14) for observing the powder condition in the feed hopper (1).

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