Extruder protective shell device with cooling mechanism and extruder comprising same

Abstract

The utility model provides an extruder protective shell device with a cooling mechanism and an extruder comprising the extruder protective shell device, the extruder protective shell device comprises a protective shell, the protective shell is used for being sleeved on the outer side of a machine barrel of the extruder, and the extruder protective shell device further comprises the cooling mechanism, the cooling mechanism is arranged in the protective shell and used for cooling the outer surface of the machine barrel. According to the utility model, the cooling mechanism is arranged in the protective shell, so that the cooling mechanism is positioned between the machine barrel of the extruder and the protective shell, and the cooling mechanism can reduce the temperature of the outer surface of the machine barrel, so that the environment near the outer surface of the machine barrel is relatively low in temperature; therefore, adverse effects on electrical equipment and the like arranged on the machine barrel due to too high temperature can be prevented, and meanwhile, workers can be prevented from being scalded due to mistaken touching of the machine barrel in the process of operating the extruder in a relatively low-temperature environment.

Description

Technical Field

[0001] The utility model particularly relates to an extruder protective shell device with a cooling mechanism and an extruder comprising the same. Background Art

[0002] An extruder is generally used to heat and melt a solid input material (such as a plastic or thermoplastic material) and extrude the material in a flowable or molten state. A mold or die is set at the output end of the extruder, and when the extruded or output material is cooled and solidified in the mold or die, an elongated plastic component having a cross-sectional profile defined by the mold or die can be formed.

[0003] When the heating device installed inside the existing extruder barrel heats the input material, it will cause the outer surface of the barrel to overheat, which will have an adverse effect on the electrical equipment installed on the barrel, and may also cause workers to accidentally touch the barrel during operation and cause burns. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defect in the prior art that when the heating device arranged inside the extruder barrel heats the input material body, the outer surface of the barrel will be overheated, which will have an adverse effect on the power equipment and the like arranged on the barrel, and may also cause workers to accidentally touch the barrel during operation and cause burns. The utility model provides an extruder protective shell device with a cooling mechanism and an extruder comprising the same.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides an extruder protective shell device with a cooling mechanism, the extruder protective shell device comprises a protective shell, the protective shell is used to be sleeved on the outside of the barrel of the extruder, and the extruder protective shell device also includes a cooling mechanism;

[0007] The cooling mechanism is arranged in the protective shell and is used to cool the outer surface of the barrel.

[0008] In this solution, a cooling mechanism is arranged inside the protective shell so that the cooling mechanism is located between the barrel of the extruder and the protective shell. The cooling mechanism can reduce the temperature of the outer surface of the barrel so that the temperature near the outer surface of the barrel is relatively low. This not only prevents excessive temperature from having an adverse effect on electrical equipment installed on the barrel, but also prevents workers from accidentally touching the barrel and getting burned when operating the extruder.

[0009] Preferably, the cooling mechanism comprises a condenser, which is used to be wound around the outer surface of the barrel or to be used to pass a cooling medium between the barrel and the protective shell;

[0010] The extruder protective housing device further comprises a cooling medium storage device, the condenser pipe is in communication with the cooling medium storage device, and the cooling medium storage device stores cooling medium.

[0011] In this scheme, by arranging a condenser on the outer surface of the barrel or introducing a cooling medium into the accommodating space formed by the barrel and the protective shell, the purpose of heat exchange between the cooling medium and the outer surface of the barrel and the protective shell can be achieved, so that the temperature of the outer surface of the barrel and the protective shell is reduced, ensuring that the outer surface of the barrel is in a relatively low temperature environment. While preventing excessive temperature from having an adverse effect on the electrical equipment installed on the barrel, it can also prevent workers from accidentally touching the barrel and causing burns during the operation of the extruder. The cooling medium can also cool the protective shell to prevent the high temperature environment from affecting the service life of the protective shell.

[0012] Preferably, the condenser tube is used to be wound around the outer surface of the barrel, and the protective shell is provided with a discharge port;

[0013] One end of the condenser pipe is communicated with the cooling medium storage device, and the other end is communicated with the discharge port.

[0014] In this solution, a discharge port is opened on the protective shell so that the cooling medium passed into the condenser tube is discharged from the discharge port. A cooling medium circulation device can be subsequently connected to the discharge port to realize the recycling of the cooling medium and save resources.

[0015] Preferably, the cooling mechanism further comprises a pump body, and the pump body is configured to pressurize the cooling medium in the cooling medium storage device so that the cooling medium enters the condenser tube.

[0016] In this solution, using a pump body to pressurize the cooling medium can enable the cooling medium to enter the condenser tube from the cooling medium storage device more quickly.

[0017] Preferably, the cooling medium is liquid nitrogen, and the pump body is an air compressor.

[0018] The nitrogen used in this solution has a better cooling effect and a faster cooling speed than common cooling media such as cold water or cold air.

[0019] Preferably, the extruder protective housing device further comprises a cover body, a first through hole is opened on the cover body, and the cooling medium storage device is arranged in the cover body;

[0020] One end of the condensing pipe passes through the first through hole and is communicated with the cooling medium storage device.

[0021] In this solution, by providing a cover body, the cooling medium storage device or other devices arranged in the cover body can be protected.

[0022] The utility model also provides an extruder, which comprises the extruder protective shell device with a cooling mechanism as described above.

[0023] Preferably, the extruder includes the barrel, and the barrel is further provided with a feeding barrel, the inside of the feeding barrel is movably connected with a crushing mechanism, and the crushing mechanism is configured to crush the material output from the feeding barrel.

[0024] Preferably, the crushing mechanism comprises a rotating shaft, crushing blades and a driving member, and the crushing blades are fixed on the rotating shaft;

[0025] The driving member is electrically connected to the rotating shaft.

[0026] In this solution, when the material is input from the feeding barrel to the extruder barrel, the driving member first drives the rotating shaft to rotate clockwise, and the rotating shaft drives the crushing blades to move, so that the crushing blades crush the input material, making it convenient for the subsequent extruder to hot melt the material and speeding up the efficiency of hot melting.

[0027] Preferably, a shielding plate is provided on the inner wall of the feeding barrel, and the length of the shielding plate is smaller than the diameter of the feeding barrel;

[0028] And / or, a filter screen is installed inside the feeding cylinder.

[0029] In this solution, when the crushing blades rotate to crush the material, the material may fly out of the feeding barrel due to inertia. The provided baffle plate can block the material to prevent it from flying out and avoid wasting the material.

[0030] In this solution, the filter screen can allow completely crushed material particles to enter the barrel for hot melting, while the incompletely crushed material is left in the feeding barrel for further crushing, which has a certain screening effect on the material.

[0031] The positive and progressive effects of the utility model are:

[0032] In the utility model, a cooling mechanism is arranged in the protective shell so that the cooling mechanism is located between the barrel of the extruder and the protective shell. The cooling mechanism can reduce the temperature of the outer surface of the barrel so that the vicinity of the outer surface of the barrel is in a relatively low temperature environment. This can not only prevent excessive temperature from having an adverse effect on electrical equipment and the like arranged on the barrel, but also the relatively low temperature environment can prevent workers from accidentally touching the barrel and causing burns during the operation of the extruder. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a front structural schematic diagram of an extruder protective housing device with a cooling mechanism in an embodiment of the utility model assembled on an extruder.

[0034] Figure 2 It is a three-dimensional structural schematic diagram of an extruder protective housing device with a cooling mechanism in an embodiment of the utility model assembled on an extruder.

[0035] Figure 3 It is a schematic diagram of the structure inside a feeding barrel in an embodiment of the utility model.

[0036] Figure 4 This is a schematic diagram of a structure installed in a box next to a charging barrel in an embodiment of the utility model.

[0037] Description of reference numerals:

[0038] Barrel 1

[0039] Feeding cylinder 11

[0040] Crushing mechanism 12

[0041] Rotating shaft 121

[0042] Broken blade 122

[0043] Driving member 123

[0044] Shield 124

[0045] Second storage battery 125

[0046] Box 126

[0047] Filter 127

[0048] Protective housing 2

[0049] Discharge port 21

[0050] Discharge valve 22

[0051] Cooling mechanism 3

[0052] Condenser 31

[0053] Pump body 32

[0054] First storage battery 33

[0055] Cooling medium storage device 4

[0056] Cover 5 DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0058] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0059] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0060] See also Figures 1 to 4 The utility model provides an extruder protective housing device with a cooling mechanism, the extruder protective housing device includes a protective housing 2, the protective housing 2 is used to be sleeved on the outside of the barrel 1 of the extruder, and the extruder protective housing device also includes a cooling mechanism 3, the cooling mechanism 3 is arranged in the protective housing 2 and is used to cool the outer surface of the barrel 1. By arranging the cooling mechanism 3 in the protective housing 2, so that the cooling mechanism 3 is between the barrel 1 of the extruder and the protective housing 2, the cooling mechanism 3 can reduce the temperature of the outer surface of the barrel 1 and the protective housing 2, so that the outer surface of the barrel 1 is in a relatively low temperature environment, which can not only prevent the excessive temperature from having an adverse effect on the power equipment and the like arranged on the barrel 1, but also the lower temperature environment can prevent the workers from accidentally touching the barrel 1 and causing burns during the operation of the extruder, and the lower temperature can also ensure that the protective housing 2 has a longer service life.

[0061] In this embodiment, the cooling mechanism 3 includes a condenser 31, which is used to be wound around the outer surface of the barrel 1 or to be used to pass a cooling medium between the barrel 1 and the protective shell 2. The extruder protective shell device also includes a cooling medium storage device 4, and the condenser 31 is connected to the cooling medium storage device 4, and the cooling medium is stored in the cooling medium storage device 4. By arranging the condenser 31 on the outer surface of the barrel 1 or passing the cooling medium into the accommodating space formed by the barrel 1 and the protective shell 2, the purpose of heat exchange between the cooling medium and the outer surface of the barrel 1 and the protective shell 2 can be achieved, so that the temperature of the outer surface of the barrel 1 and the protective shell 2 is reduced, and the outer surface of the barrel 1 is ensured to be in a relatively low temperature environment. While preventing the excessive temperature from adversely affecting the power equipment and the like installed on the barrel 1, it can also prevent workers from accidentally touching the barrel 1 and causing burns during the operation of the extruder. The cooling medium can also cool the protective shell 2 to prevent the high temperature environment from affecting the service life of the protective shell 2.

[0062] Specifically, the outer part of the extruder barrel 1 is connected with a protective shell 2, and the cooling mechanism 3 includes a condenser 31 which is arranged in a serpentine shape and wound around the outer surface of the barrel 1, or the mouth of the condenser 31 extends into the accommodation space formed by the barrel 1 and the protective shell 2, and one end of the condenser 31 is connected to a cooling medium storage device 4, and the cooling medium stored in the cooling medium storage device 4 can be passed into the condenser 31 or transported to the accommodation space formed by the barrel 1 and the protective shell 2 through the condenser 31.

[0063] In this embodiment, the extruder protective housing device further includes a cover body 5, a first through hole is formed on the cover body 5, a cooling medium storage device 4 is arranged in the cover body 5, the cover body 5 and the cooling medium storage device 4 are fixedly connected by bolts, and one end of the condenser tube 31 passes through the first through hole and communicates with the cooling medium storage device 4. By providing the cover body 5, the cooling medium storage device 4 or other devices arranged in the cover body 5 can be protected.

[0064] In this embodiment, the cooling mechanism 3 also includes a pump body 32, which is configured to pressurize the cooling medium in the cooling medium storage device 4 so that the cooling medium enters the condenser 31. The cooling mechanism 3 also includes a first battery 33, which is used to supply power to the air compressor. Specifically, the cooling medium stored in the cooling medium storage device 4 is liquid nitrogen, the pump body 32 is an air compressor, and the cooling medium storage device 4 is a nitrogen storage tank, which is connected to the air compressor. The first battery 33 and the air compressor are electrically connected through a wire, the air compressor is arranged on the inner wall of one side of the cover body 5, and the first battery 33 is arranged on the inner wall of the other side of the cover body 5. The first battery 33 supplies power to the air compressor, and the air compressor compresses the nitrogen stored in the cooling storage device (i.e., the nitrogen storage tank) so that the nitrogen enters the condenser 31, which has a cooling effect on the barrel 1 and the protective shell 2. The nitrogen used in this embodiment has a better cooling effect than common cooling media such as cold water or cold wind, and the cooling speed is faster. Using the pump body 32 to pressurize the cooling medium can make the cooling medium enter the condensation pipe 31 from the cooling medium storage device 4 more quickly.

[0065] In other embodiments, the medium passed into the condenser 31 may be cooling water or cold air, and the pump body 32 may also be other types of equipment such as a vacuum pump and a circulation pump.

[0066] In this embodiment, the condenser 31 is used to be wound around the outer surface of the barrel 1, and a discharge port 21 is provided on the protective shell 2. One end of the condenser 31 is connected to the cooling medium storage device 4, and the other end is connected to the discharge port 21. Specifically, the discharge port 21 is provided on the protective shell 2, and one end of the condenser 31 is connected to the cooling medium storage device 4, and the other end is connected to the discharge port 21. The cooling medium passed into the condenser 31 can be discharged through the discharge port 21. The cooling medium used in this embodiment is nitrogen, and the nitrogen passed into the condenser 31 can be directly discharged into the air through the discharge port 21 provided on the protective shell 2.

[0067] In other embodiments, an external cooling medium circulation device (not shown in the figure) is connected to the discharge port 21, and the other end of the cooling medium circulation device is connected to the cooling medium storage device 4. The cooling medium passed into the condenser 31 exchanges heat with the barrel 1 and the protective shell 2, and then is discharged from the discharge port 21, and is passed into the cooling medium storage device 4 again through the cooling medium circulation device, thereby realizing the recycling of the cooling medium and saving resources.

[0068] In this embodiment, a discharge valve 22 is connected to the discharge port 21 . The discharge valve 22 is provided to control the flow rate of the cooling medium discharged from the condenser pipe 31 .

[0069] In other embodiments, both ends of the condenser 31 can be connected to the cooling medium storage device 4. The cooling medium passes into the condenser 31, exchanges heat with the barrel 1 and the protective shell 2, and then flows into the cooling medium storage device 4, thereby realizing the recycling of the cooling medium.

[0070] The utility model also provides an extruder, which comprises the extruder protective shell device with a cooling mechanism as described above.

[0071] In this embodiment, the extruder includes a barrel 1, and a feeding barrel 11 is also provided on the barrel 1. The feeding barrel 11 is in the shape of a curved tube. One side of the feeding barrel 11 is connected to the protective shell 2. The feeding barrel 11 is internally movably connected with a crushing mechanism 12. The crushing mechanism 12 is configured to crush the material output from the feeding barrel 11. Specifically, the crushing mechanism 12 includes a rotating shaft 121, crushing blades 122, and a driving member 123. The crushing blades 122 are fixed on the rotating shaft 121. The driving member 123 is electrically connected to the rotating shaft 121, and the driving member 123 is disposed on the outer surface of the feeding port. In the process of inputting the material from the feeding barrel 11 into the extruder barrel 1, the driving member 123 first drives the rotating shaft 121 to rotate clockwise, and the rotating shaft 121 drives the crushing blades 122 to move, so that the crushing blades 122 crush the input material, which is convenient for the subsequent extruder to hot-smash the material and speed up the efficiency of hot-smash.

[0072] In this embodiment, the crushing mechanism 12 also includes a second battery 125, which is electrically connected to the driving member 123 through a wire. The second battery 125 is also arranged outside the feeding barrel 11. The second battery 125 and the driving member 123 are both arranged in a box 126 installed outside the extruder. The box 126 serves to protect the second battery 125 and the driving member 123.

[0073] In this embodiment, a shielding plate 124 is provided on the inner wall of the feeding barrel 11 which is set to be a curved tube. The length of the shielding plate 124 is less than the diameter of the feeding barrel 11. There are multiple shielding plates 124 and the lengths of the multiple shielding plates 124 are different. When the crushing blades 122 rotate to crush the material, the material may fly out of the feeding barrel 11 due to inertia. The shielding plate 124 can block the material to prevent it from flying out and avoid wasting the material.

[0074] In this embodiment, a filter screen 127 is installed inside the feeding barrel 11 near the position where the feeding barrel 11 is connected to the barrel 1. The filter screen 127 can allow completely crushed material particles to enter the barrel 1 for hot melting, while incompletely crushed material is retained in the feeding barrel 11 for further crushing, which has a certain screening effect on the material.

[0075] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0076] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An extruder protective housing device with a cooling mechanism, the extruder protective housing device comprising a protective housing, the protective housing being used to be sleeved on the outside of the barrel of the extruder, characterized in that: The extruder protective housing device also includes a cooling mechanism; The cooling mechanism is disposed in the protective housing and is used to cool the outer surface of the barrel; The cooling mechanism comprises a condenser tube, which is used to be wound around the outer surface of the barrel or to be used to pass a cooling medium between the barrel and the protective shell; The extruder protective housing device further comprises a cooling medium storage device, the condenser pipe is in communication with the cooling medium storage device, and the cooling medium storage device stores cooling medium; The condenser tube is used to be wound around the outer surface of the barrel, and the protective shell is provided with a discharge port; One end of the condenser pipe is connected to the cooling medium storage device, and the other end is connected to the discharge port; The cooling mechanism further includes a pump body, which is configured to pressurize the cooling medium in the cooling medium storage device so that the cooling medium enters the condenser tube; The cooling medium is liquid nitrogen, and the pump body is an air compressor; The extruder protective housing device further comprises a cover body, a first through hole is opened on the cover body, and the cooling medium storage device is arranged in the cover body; One end of the condensing pipe passes through the first through hole and is communicated with the cooling medium storage device.

2. An extruder, characterized in that: The extruder comprises the extruder protective housing device with a cooling mechanism as claimed in claim 1.

3. The extruder according to claim 2, characterized in that The extruder comprises the barrel, which is also provided with a feeding barrel, the interior of which is movably connected with a crushing mechanism, and the crushing mechanism is configured to crush the material output from the feeding barrel.

4. The extruder according to claim 3, characterized in that The crushing mechanism comprises a rotating shaft, crushing blades and a driving member, wherein the crushing blades are fixed on the rotating shaft; The driving member is electrically connected to the rotating shaft.

5. The extruder according to claim 3, characterized in that A shielding plate is provided on the inner wall of the feeding cylinder, and the length of the shielding plate is smaller than the diameter of the feeding cylinder; And / or, a filter screen is installed inside the feeding cylinder.

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