Material drying machine

Abstract

The utility model discloses a material drying machine which comprises a material drying barrel, a drying pump and a first air outlet pipe are installed on the material drying barrel, an air inlet pipe is rotatably connected in the material drying barrel, a plurality of air distribution plates are integrally formed on the air inlet pipe, a plurality of air outlet holes are formed in the air distribution plates, the air inlet pipe penetrates through the material drying barrel, and the first air outlet pipe and the second air outlet pipe are arranged on the material drying barrel. The material drying machine further comprises a driving device, the driving device can enable the air inlet pipe to rotate, the driving device comprises a second air outlet pipe, the second air outlet pipe is integrally formed on the first air outlet pipe, a containing groove is formed in the inner wall of the second air outlet pipe, and a rotating shaft is rotationally connected into the containing groove. And a plurality of air plates are integrally formed on the rotating shaft. Compared with the prior art, the material drying machine has the advantage that plastic particles in the material drying barrel can be in uniform contact with high-temperature gas. Therefore, the drying time is shortened, the drying efficiency is improved, the drying quality can be improved, and the mold production quality is facilitated.

Description

Technical Field

[0001] This utility model belongs to the technical field of drying machines, and specifically relates to a drying machine. Background Technology

[0002] A drying machine is a device used to dry materials. It mainly works by heating the material to remove moisture, thus obtaining a solid material with a specified moisture content. Drying machines are widely used in various applications requiring drying, such as plastic product manufacturing and feed processing.

[0003] During mold production, plastic granules need to be dried to remove moisture. However, because the granules accumulate in the drying chamber, the contact between the granules and the high-temperature gas inside is uneven, resulting in prolonged drying time and reduced efficiency. Furthermore, some moisture on the granules remains incompletely dried, affecting the quality of the mold production.

[0004] Therefore, it is necessary to provide a drying machine to address the aforementioned technical problems.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a drying machine that can solve the above-mentioned problems.

[0007] To achieve the above objectives, a specific embodiment of this utility model provides a drying machine, including a drying barrel, on which a drying pump and a first air outlet pipe are installed. An air inlet pipe is rotatably connected inside the drying barrel. Multiple air distribution plates are integrally formed on the air inlet pipe, and several air outlet holes are opened on the air distribution plates. The air inlet pipe passes through the drying barrel. The drying machine also includes a driving device that enables the air inlet pipe to rotate.

[0008] In one or more embodiments of the present invention, the driving device includes a second air outlet pipe, which is integrally formed on the first air outlet pipe. A placement groove is provided on the inner wall of the second air outlet pipe, and a rotating shaft is rotatably connected in the placement groove. Multiple air blades are integrally formed on the rotating shaft.

[0009] In one or more embodiments of this utility model, the end of the rotating shaft away from the wind plate passes through the second air outlet pipe, and the end of the rotating shaft passing through the second air outlet pipe is fixedly connected to a second pulley.

[0010] In one or more embodiments of this utility model, a transmission belt is sleeved on the second pulley, and a first pulley that matches the transmission belt is fixedly connected to the lower end face of the air intake pipe.

[0011] In one or more embodiments of this utility model, a guide block is integrally formed on the second air outlet pipe.

[0012] In one or more embodiments of this utility model, the cross-section of the placement groove is circular, and the plurality of air plates are sealed to the placement groove.

[0013] In one or more embodiments of this utility model, a through hole is provided on the first pulley, and a male connector is fixedly connected to the end face of the first pulley away from the air intake pipe, and a female connector is sealed to the end of the male connector away from the first pulley.

[0014] In one or more embodiments of this utility model, the end of the female connector away from the male connector is fixedly connected to the drying pump.

[0015] In one or more embodiments of this utility model, the gas distribution plate is a polytetrafluoroethylene plate.

[0016] In one or more embodiments of this utility model, a scraper is detachably connected to one end of the air distribution plate away from the air inlet pipe. The scraper is in contact with the inner wall of the drying barrel, and a cleaning cloth is wrapped around the scraper.

[0017] Compared with existing technologies, the drying machine of this invention enables the plastic granules in the drying drum to come into uniform contact with high-temperature gas. This shortens the drying time, improves drying efficiency, and also enhances the drying quality, which is beneficial to the quality of mold production. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the usage state of a drying machine according to one embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of a drying machine according to one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a drying machine according to one embodiment of the present invention;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure at point A;

[0023] Figure 5 This is a partial cross-sectional view of the air outlet pipe of a drying machine according to one embodiment of the present invention.

[0024] Explanation of key figure labels:

[0025] 1. Frame; 11. Support frame; 2. Drying hopper; 3. Air inlet pipe; 31. Air distribution plate; 3101. Air outlet; 32. Scraper; 33. Sealing sleeve; 34. First pulley; 3401. Through hole; 4. First air outlet pipe; 41. Second air outlet pipe; 411. Placement slot; 412. Guide block; 5. Rotating shaft; 51. Air vane; 52. Second pulley; 521. Drive belt; 6. Drying pump; 7. Male connector; 8. Female connector. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0027] like Figure 1 and Figure 2 As shown, a drying machine according to one embodiment of this utility model includes a drying hopper 2, which is mounted on a frame 1. A support frame 11 for supporting the drying hopper 2 is integrally formed on the frame 1. A drying pump 6 and a first exhaust pipe 4 are installed on the drying hopper 2. Specifically, when drying the plastic granules in the drying hopper 2, the drying pump 6 continuously inputs high-temperature gas into the drying hopper 2 to heat and dry the plastic granules, evaporating the moisture on the plastic granules, which is then discharged through the first exhaust pipe 4.

[0028] To better dry the plastic granules inside the drying drum 2, an air inlet pipe 3 is rotatably connected inside the drying drum 2. A pair of air distribution plates 31 are integrally formed on the air inlet pipe 3, and several air outlets 3101 are opened on the air distribution plates 31. Specifically, when drying the plastic granules inside the drying drum 2, the high-temperature gas input by the drying pump 6 passes through the air inlet pipe 3 and is evenly discharged from the air outlets 3101 on the air distribution plates 31, ensuring uniform contact between the plastic granules and the high-temperature gas inside the drying drum 2, thus drying the plastic granules.

[0029] At the same time, rotating the air inlet pipe 3 connected to the drying barrel 2 drives the air distribution plate 31 to rotate, continuously agitating the plastic particles, which allows the plastic particles to change position continuously in the drying barrel 2, thus better drying the plastic particles.

[0030] like Figures 2 to 5 As shown, a drive device is installed on the drying machine, which enables the air inlet pipe 3 to rotate inside the drying barrel 2.

[0031] In order to allow the air inlet pipe 3 to rotate inside the drying barrel 2, the air inlet pipe 3 passes through the drying barrel 2 and the support frame 11. A sealing sleeve 33 is sealed between the end of the air inlet pipe 3 that protrudes from the drying barrel 2 and the support frame 11. The sealing sleeve 33 can seal the gap between the air inlet pipe 3 and the drying barrel 2, and can prevent high-temperature gas from leaking when the air inlet pipe 3 rotates.

[0032] The drive device includes a second air outlet pipe 41, which is integrally formed on the first air outlet pipe 4. A placement groove 411 is provided on the inner wall of the first air outlet pipe 4. A rotating shaft 5 is rotatably connected in the placement groove 411. Multiple air blades 51 are integrally formed on the rotating shaft 5. The cross-section of the placement groove 411 is circular, and the multiple air blades 51 are sealed and connected to the placement groove 411.

[0033] Specifically, during the drying process, the high-temperature gas discharged from the first exhaust pipe 4 is blown onto the air plate 51 under air pressure and finally discharged outside the first exhaust pipe 4. This process will drive the rotating shaft 5 to rotate.

[0034] Furthermore, the end of the rotating shaft 5 furthest from the fan plate 51 passes through the second air outlet pipe 41, and a second pulley 52 is welded to the end of the rotating shaft 5 passing through the second air outlet pipe 41. A transmission belt 521 is fitted onto the second pulley 52, and a first pulley 34 matching the transmission belt 521 is welded to the lower end face of the air inlet pipe 3. Specifically, when the rotating shaft 5 rotates, it drives the second pulley 52 to rotate, and the second pulley 52 drives the first pulley 34 to rotate through the transmission belt 521, thereby causing the air inlet pipe 3 to rotate. The air distribution plate 31 on the air inlet pipe 3 can then agitate the plastic granules in the drying barrel 2, thus drying the plastic granules.

[0035] It is worth noting that the friction between the plastic granules and the air distribution plate 31 may affect the rotation speed of the air inlet pipe 3. Furthermore, the air distribution plate 31 is made of polytetrafluoroethylene (PTFE). PTFE has excellent high and low temperature resistance, with a wide operating temperature range, remaining stable from -200℃ to +250℃. Moreover, its coefficient of friction is extremely low. When the air distribution plate 31 rotates, the friction between it and the plastic granules is small, which increases the rotation speed of the air distribution plate 31. This continuously agitates the plastic granules within the drying hopper 2, accelerating the drying speed and improving the drying quality.

[0036] Furthermore, a guide block 412 is integrally formed on the inner wall of the second exhaust pipe 41. The guide block 412 allows the high-temperature gas entering the second exhaust pipe 41 from the first exhaust pipe 4 to be blown obliquely onto the air plate 51, keeping the force direction on the air plate 51 the same, which is beneficial to the rotation of the rotating shaft 5. In addition, the guide block 412 reduces the gas passage in the second exhaust pipe 41, and the high-temperature gas can accelerate its flow speed when flowing through the guide block 412. In this way, the high-temperature gas blown onto the air plate 51 can accelerate the rotation speed of the rotating shaft 5, thereby driving the intake pipe 3 to rotate faster, making the plastic granules in the drying barrel 2 dry faster and with better quality.

[0037] At the same time, since the high-temperature gas that drives the intake pipe 3 to rotate is dried exhaust gas, there is no energy loss, thus saving energy.

[0038] It is worth noting that, since the first pulley 34 is welded to the lower end face of the air intake pipe 3, a through hole 3401 is provided on the first pulley 34 to allow air to pass through. At the same time, a male connector 7 is welded to the end face of the first pulley 34 away from the air intake pipe 3. The end of the male connector 7 away from the first pulley 34 is sealed and connected to a female connector 8. The end of the female connector 8 away from the male connector 7 is fixedly connected to the drying pump 6.

[0039] Specifically, the male connector 7 can rotate within the female connector 8, and the male connector 7 and female connector 8 can be sealed to prevent air leakage. The rotation of the air inlet pipe 3 will not affect the drying pump 6. Specifically, the fit between the male connector 7 and the female connector 8 is a pneumatic quick-connect coupling, which is existing technology and will not be described in detail.

[0040] like Figure 2 As shown, after prolonged use, stains will accumulate on the inner wall of the drying hopper 2. Manual cleaning of the inner wall of the drying hopper 2 is very inconvenient. Therefore, a scraper 32 is inserted into the end of the air distribution plate 31 furthest from the air inlet pipe 3. The scraper 32 is in contact with the inner wall of the drying hopper 2, and a cleaning cloth is wrapped around the scraper 32. When the air distribution plate 31 rotates, the cleaning cloth on the scraper 32 can wipe away the stains on the inner wall of the drying hopper 2. Thus, when cleaning the drying hopper 2, it is only necessary to remove the scraper 32 inserted into the air distribution plate 31 for cleaning.

[0041] In operation, the high-temperature gas output from the drying pump 6 flows into the drying drum 2 through the inlet pipe 3 and is evenly blown into the drying drum 2 through the outlet holes 3101 on the air distribution plate 31, heating the plastic granules inside the drying drum 2. Then, the high-temperature gas, carrying the moisture from the plastic granules, is discharged from the first outlet pipe 4. When the high-temperature gas flows through the second outlet pipe 41, it blows onto the fan plate 51, causing the rotating shaft 5 to rotate, which in turn drives the inlet pipe 3 to rotate. The air distribution plate 31 on the inlet pipe 3 continuously agitates the plastic granules inside the drying drum 2, accelerating the drying speed and improving the drying quality.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drying machine, comprising a drying hopper, wherein a drying pump and a first air outlet pipe are installed on the drying hopper, characterized in that, An air inlet pipe is rotatably connected inside the drying barrel. Multiple air distribution plates are integrally formed on the air inlet pipe, and several air outlet holes are opened on the air distribution plates. The air inlet pipe passes through the drying barrel. The drying machine also includes a drive device that can make the air inlet pipe rotate.

2. The drying machine according to claim 1, characterized in that, The drive device includes a second air outlet pipe, which is integrally formed on the first air outlet pipe. A placement groove is provided on the inner wall of the second air outlet pipe, and a rotating shaft is rotatably connected in the placement groove. Multiple air blades are integrally formed on the rotating shaft.

3. A drying machine according to claim 2, characterized in that, The end of the rotating shaft away from the air plate passes through the second air outlet pipe, and the end of the rotating shaft passing through the second air outlet pipe is fixedly connected to the second pulley.

4. A drying machine according to claim 3, characterized in that, A drive belt is fitted onto the second pulley, and a first pulley that matches the drive belt is fixedly connected to the lower end face of the air intake pipe.

5. A drying machine according to claim 3, characterized in that, The second exhaust pipe has an integrally formed guide block.

6. A drying machine according to claim 3, characterized in that, The placement slot has a circular cross-section, and multiple air plates are sealed to the placement slot.

7. A drying machine according to claim 4, characterized in that, The first pulley has a through hole, and a male connector is fixedly connected to the end face of the first pulley away from the air intake pipe. The end of the male connector away from the first pulley is sealed with a female connector.

8. A drying machine according to claim 7, characterized in that, The end of the female connector away from the male connector is fixedly connected to the drying pump.

9. A drying machine according to any one of claims 1-8, characterized in that, The gas distribution plate is made of polytetrafluoroethylene (PTFE).

10. A drying machine according to claim 1, characterized in that, The end of the air distribution plate away from the air intake pipe is detachably connected to a scraper, which is in contact with the inner wall of the drying barrel, and a cleaning cloth is wrapped around the scraper.

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