A drying device for PU pipe processing

Abstract

The present invention discloses a drying device for PU tube processing, comprising a bottom plate, L-shaped positioning rods are fixed at four corners on the bottom plate, a dryer is slidably arranged between the four groups of L-shaped positioning rods, a spring is fixed between the bottom of the dryer and the bottom plate, an air extractor and a feed box are arranged at the upper end of the dryer, a first filtering and feeding mechanism and a second filtering and feeding mechanism are arranged in an inner cavity of the dryer, and a first guide plate and a second guide plate are obliquely arranged below the first filtering and feeding mechanism and the second filtering and feeding mechanism. The drying device for PU tube processing described in the present invention is provided with a first feeding and filtering mechanism and a second feeding and filtering mechanism, which can perform continuous multi-stage filtration and continuous discharge of plastic particles, has a good filtering effect and can also improve work efficiency, and is provided with a hot air flow mechanism to facilitate rapid drying of plastic particles.

Description

Technical Field

[0001] The invention relates to the field of drying equipment, and in particular to a drying device for PU pipe processing. Background Art

[0002] The existing PU tube is a product formed by heating and melting plastic particles and then extruding and solidifying them from an extruder.

[0003] Plastic particles that have been placed for too long are prone to moisture, and the damp plastic particles are likely to affect the quality of the PU tube after molding, so they need to be dried. Generally, the plastic particles are placed in a drying box for stirring and drying. The drying box generally does not have an impurity filtering function, and cannot perform continuous loading and arranging operations, resulting in low work efficiency. Therefore, we propose a drying device for PU tube processing. Summary of the invention

[0004] The main purpose of the present invention is to provide a drying device for PU tube processing, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A drying device for PU pipe processing comprises a base plate, L-shaped positioning rods are fixed at four corners of the base plate, a dryer is slidably arranged between the four groups of L-shaped positioning rods, a spring is fixed between the bottom of the dryer and the base plate, an air extractor and a feed box are arranged at the upper end of the dryer, a first filtering and feeding mechanism and a second filtering and feeding mechanism are arranged in an inner cavity of the dryer from top to bottom, a first material guide plate and a second material guide plate are obliquely arranged below the first filtering and feeding mechanism and the second filtering and feeding mechanism, a collecting box is symmetrically arranged on the side wall of the dryer from top to bottom, a lifting mechanism is arranged at the upper end of the base plate, and a hot air flow mechanism is arranged in the inner cavity of the dryer.

[0007] Preferably, the lifting mechanism includes a lifting motor, a cam and a fixed block, the lifting motor and the fixed block are fixedly provided on the bottom plate, the output shaft of the lifting motor is rotatably connected to the fixed block, the output shaft of the lifting motor is fixed with a cam, and the cam is in sliding contact with the bottom of the dryer.

[0008] Preferably, the first filter feeding mechanism has the same structure as the second filter feeding mechanism, the first filter feeding mechanism comprises a feeding motor, a rotating pushing rod and a filter screen cylinder, the inner cavity of the dryer is fixedly provided with a filter screen cylinder, the inner cavity of the filter screen cylinder is rotatably provided with a rotating pushing rod, and the left end of the rotating pushing rod is fixedly connected to the output shaft of the feeding motor located on the side wall of the dryer.

[0009] Preferably, the filter screen cylinders of the first filter feeding mechanism and the second filter feeding mechanism are connected by a cylinder, the upper filter clearance gap of the filter screen cylinder of the first filter feeding mechanism is smaller than the size of the plastic particles, the upper filter clearance gap of the filter screen cylinder of the second filter feeding mechanism is slightly larger than or equal to the size of the plastic particles, the left end of the filter screen cylinder of the second filter feeding mechanism passes through the inner cavity side wall of the dryer and extends to the outside thereof, and a discharge opening is provided at the bottom of the left end of the filter screen cylinder.

[0010] Preferably, the hot air flow mechanism includes a blower, an air duct, an electric heating tube, annular fins and a connecting tube. A plurality of groups of electric heating tubes are symmetrically arranged on the inner cavity wall of the dryer in an up-and-down manner. Annular fins are uniformly and evenly spaced on the electric heating tubes. Air ducts are arranged on the periphery of the electric heating tubes and nozzles are uniformly and evenly spaced on the air ducts. The plurality of groups of air ducts are connected by a connecting tube, and the upper end of the connecting tube is connected to the output end of the blower.

[0011] Preferably, the air guide tube and the electric heating tube are both of U-shaped structure.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The first feeding filter mechanism and the second feeding filter mechanism are provided, which can perform continuous multi-stage filtration and continuous discharge of plastic particles, and have good filtering effect and can also improve work efficiency.

[0014] 2. It is equipped with a hot air flow mechanism, which is heated by an electric heating tube. The heat is quickly diffused into the air through the annular fins, and then the air is sprayed out of the nozzle through the blower to drive the heat flow. Finally, the generated water vapor can be extracted from the inner cavity of the dryer through the exhaust fan, which is convenient for the rapid drying of plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall structural diagram of a drying device for PU pipe processing according to the present invention.

[0016] Figure 2 This is a rear cross-sectional view of a drying device for PU tube processing according to the present invention.

[0017] Figure 3 This is a structural diagram of the jacking mechanism of a drying device for PU tube processing according to the present invention.

[0018] Figure 4 This is a structural diagram of the hot air flow mechanism of a drying device for PU pipe processing of the present invention.

[0019] Figure 5 This is a top view of an air guide pipe and an electric heating pipe of a drying device for PU pipe processing according to the present invention.

[0020] In the figure: 1. bottom plate; 2. L-shaped positioning rod; 3. spring; 4. dryer; 5. first filter feeding mechanism; 51. feeding motor; 52. rotating push rod; 53. filter screen cylinder; 6. feed box; 7. vacuum pump; 8. second filter feeding machine; 9. hot air flow mechanism; 91. blower; 92. air guide pipe; 93. electric heating pipe; 94. annular fin; 95. connecting pipe; 10. lifting mechanism; 101. lifting motor; 102. cam; 103. fixing block; 11. first guide plate; 12. second guide plate; 13. collecting box; 14. cylinder. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-5 As shown, a drying device for PU pipe processing includes a base plate 1, L-shaped positioning rods 2 are fixed at four corners of the base plate 1, a dryer 4 is slidably arranged between the four groups of L-shaped positioning rods 2, a spring 3 is fixed between the bottom of the dryer 4 and the base plate 1, an air extractor 7 and a feed box 6 are arranged at the upper end of the dryer 4, a first filtering and feeding mechanism 5 and a second filtering and feeding mechanism 8 are arranged in an inner cavity of the dryer 4 in an upper and lower manner, a first material guide plate 11 and a second material guide plate 12 are obliquely arranged below the first filtering and feeding mechanism 5 and the second filtering and feeding mechanism 8, a collecting box 13 is symmetrically arranged on the side wall of the dryer 4 in an upper and lower manner, a lifting mechanism 10 is arranged at the upper end of the base plate 1, and a hot air flow mechanism 9 is arranged in the inner cavity of the dryer 4.

[0025] The lifting mechanism 10 includes a lifting motor 101, a cam 102 and a fixed block 103. The lifting motor 101 and the fixed block 103 are fixed on the bottom plate 1. The output shaft of the lifting motor 101 is rotatably connected to the fixed block 103. The cam 102 is fixed on the output shaft of the lifting motor 101. The cam 102 is in sliding contact with the bottom of the dryer 4. The lifting mechanism 10 cooperates with the spring 3 to make the dryer 4 shake up and down, thereby facilitating the falling of materials.

[0026] The first filter feeding mechanism 5 has the same structure as the second filter feeding mechanism 8. The first filter feeding mechanism 5 includes a feeding motor 51, a rotating pushing rod 52 and a filter screen cylinder 53. The inner cavity of the dryer 4 is fixedly provided with a filter screen cylinder 53. The inner cavity of the filter screen cylinder 53 is rotatably provided with a rotating pushing rod 52. The left end of the rotating pushing rod 52 is fixedly connected to the output shaft of the feeding motor 51 located on the side wall of the dryer 4. The filter feeding mechanism can filter the material through the filter screen cylinder 53 during the process of pushing the material.

[0027] The filter screen cylinder 53 of the first filter feeding mechanism 5 and the second filter feeding mechanism 8 are connected by a cylinder 14. The upper filter clearance gap of the filter screen cylinder 53 of the first filter feeding mechanism 5 is smaller than the size of the plastic particles, and the upper filter clearance gap of the filter screen cylinder 53 of the second filter feeding mechanism 8 is slightly larger than or equal to the size of the plastic particles, which is convenient for removing large and small impurities in the plastic particles. The left end of the filter screen cylinder 53 of the second filter feeding mechanism 8 passes through the inner cavity side wall of the dryer 4 and extends to the outside thereof, and a discharge opening is provided at the bottom of the left end of the filter screen cylinder 53, which is convenient for collecting materials in the collection box 13.

[0028] The hot air flow mechanism 9 includes a blower 91, an air guide pipe 92, an electric heating pipe 93, annular fins 94 and a connecting pipe 95. A plurality of groups of electric heating pipes 93 are symmetrically arranged on the inner cavity wall of the dryer 4 in an up-and-down manner. The electric heating pipes 93 are all provided with annular fins 94 at uniform and equal intervals. The outer periphery of the electric heating pipes 93 is provided with air guide pipes 92, and the air guide pipes 92 are provided with nozzles at uniform and equal intervals. The plurality of groups of air guide pipes 92 are connected by a connecting pipe 95, and the upper end of the connecting pipe 95 is connected to the output end of the blower 91, so that the plastic particles in the dryer 4 can be heated and dried.

[0029] The air guide pipe 92 and the electric heating pipe 93 are both U-shaped structures, which are convenient for heating the plastic particles inside the dryer 4.

[0030] It should be noted that the present invention is a drying device for PU pipe processing, which feeds wet plastic particles into the inner cavity of the filter screen cylinder 53 arranged above through a feed box 6 (the lower end of the feed box 6 is connected to the upper end of the filter screen cylinder 53 arranged above), and drives the rotating push rod 52 to perform a rotating push motion through the feed motor 51. The rotating blades of the rotating push rod 52 have a stirring effect on the plastic particles while the plastic particles are moving. At this time, the lifting motor 101 drives the cam 102 to rotate, and the spring 3 is matched to make the dryer 4 shake up and down, so that impurities smaller than the plastic particles fall onto the first guide plate 11 (semi-circular arc structure) and enter the collection box 13 after shaking, and then the plastic particles pass through the first guide plate 11 (semi-circular arc structure) and enter the collection box 13 after shaking. The plastic particles pass through the cylinder 14 and enter the filter cylinder 53 arranged below for filtration. After the push rod and the lifting mechanism 10, the plastic particles fall onto the second guide plate 12 (semi-circular arc structure) and are discharged out of the dryer 4. Impurities larger than the plastic particles are sent into the collecting box 13 through the push rod, which has a good filtering effect on the plastic particles. A hot air flow mechanism 9 is provided, which is heated by an electric heating tube 93 and quickly diffuses the heat into the air through an annular fin 94. The air ejected from the jet head drives the heat flow through the blower 91. The generated water vapor can be extracted from the inner cavity of the dryer 4 through the exhaust fan 7, which is convenient for the rapid drying of the plastic particles. An L-shaped positioning rod 2 is provided to prevent the dryer 4 from shaking back and forth or left and right.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A drying device for PU tube processing, comprising a bottom plate (1), characterized in that: L-shaped positioning rods (2) are fixed at four corners of the bottom plate (1), a dryer (4) is slidably arranged between the four groups of L-shaped positioning rods (2), a spring (3) is fixed between the bottom of the dryer (4) and the bottom plate (1), an air extractor (7) and a feed box (6) are arranged at the upper end of the dryer (4), a first filtering and feeding mechanism (5) and a second filtering and feeding mechanism (8) are arranged in an inner cavity of the dryer (4) in an upper and lower manner, a first material guide plate (11) and a second material guide plate (12) are arranged obliquely below the first filtering and feeding mechanism (5) and the second filtering and feeding mechanism (8), a collecting box (13) is symmetrically arranged in an upper and lower manner on the side wall of the dryer (4), a lifting mechanism (10) is arranged at the upper end of the bottom plate (1), and a hot air flow mechanism (9) is arranged in the inner cavity of the dryer (4); The lifting mechanism (10) comprises a lifting motor (101), a cam (102) and a fixed block (103); the lifting motor (101) and the fixed block (103) are fixedly provided on the bottom plate (1); the output shaft of the lifting motor (101) is rotatably connected to the fixed block (103); the cam (102) is fixed on the output shaft of the lifting motor (101); and the cam (102) is in sliding contact with the bottom of the dryer (4); The first filter feeding mechanism (5) has the same structure as the second filter feeding mechanism (8), the first filter feeding mechanism (5) comprising a feeding motor (51), a rotating push rod (52) and a filter screen cylinder (53), the inner cavity of the drying machine (4) is fixedly provided with the filter screen cylinder (53), the inner cavity of the filter screen cylinder (53) is rotatably provided with a rotating push rod (52), and the left end of the rotating push rod (52) is fixedly connected to the output shaft of the feeding motor (51) located on the side wall of the drying machine (4); The filter screen cylinder (53) of the first filter feeding mechanism (5) and the filter screen cylinder (53) of the second filter feeding mechanism (8) are connected via a cylinder (14); the upper filter permeation gap of the filter screen cylinder (53) of the first filter feeding mechanism (5) is smaller than the size of the plastic particles; the upper filter permeation gap of the filter screen cylinder (53) of the second filter feeding mechanism (8) is slightly larger than or equal to the size of the plastic particles; the left end of the filter screen cylinder (53) of the second filter feeding mechanism (8) passes through the inner cavity side wall of the dryer (4) and extends to the outside thereof; and a discharge opening is provided at the bottom of the left end of the filter screen cylinder (53).

2. A drying device for PU tube processing according to claim 1, characterized in that: The hot air flow mechanism (9) comprises a blower (91), an air guide pipe (92), an electric heating pipe (93), an annular fin (94) and a connecting pipe (95); a plurality of groups of electric heating pipes (93) are symmetrically arranged on the inner cavity wall of the dryer (4) in an up-and-down manner; annular fins (94) are evenly and evenly spaced on the electric heating pipes (93); air guide pipes (92) are arranged on the periphery of the electric heating pipes (93); and nozzles are evenly and evenly spaced on the air guide pipes (92); the plurality of groups of air guide pipes (92) are connected by a connecting pipe (95); and the upper end of the connecting pipe (95) is connected to the output end of the blower (91).

3. A drying device for PU tube processing according to claim 2, characterized in that: The air guide tube (92) and the electric heating tube (93) are both of U-shaped structure.

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