Novel drying device for plastic strips

Abstract

The utility model belongs to the technical field of plastic processing, and particularly relates to a novel plastic strip drying device which comprises a fan and a support arranged on the outer side of the fan, a heating box used for heating air is arranged at an air inlet of the fan, an air suction drying piece is installed on the side edge of the heating box, an air blowing drying piece is arranged at an air outlet of the fan, and the air blowing drying piece is arranged on the support. The air suction drying piece and the air blowing drying piece are both installed on the support, and the upper end of the air suction drying piece and the upper end of the air blowing drying piece are both provided with material strip guide wheel assemblies used for supporting material strips. The heating box is installed through an air inlet of the draught fan, so that air enters the heating box from the air suction drying piece to be heated under the action of the draught fan, the heated air is blown out through the air blowing drying piece, and the air suction drying piece conducts primary drying on material strips through sucked air; and the blowing and drying piece performs secondary drying on the material strips through blown hot air, so that the drying efficiency of the material strips is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic processing, and in particular relates to a novel drying device for plastic strips. Background Art

[0002] With the advancement of society, plastic products are gradually replacing wood and metal products. Plastic products are mainly made from plastic pellets through processes such as injection molding and blow molding. Plastic strand forming is a processing step before plastic pelletization. In the plastic pelletization process, after the raw material is fed into the melt extruder, the plastic strands enter a cooling tank filled with water for cooling and drying before entering the pelletizer to be cut into pellets.

[0003] However, existing plastic strip drying devices often use air blowing to dry the strips, but the air blowing drying efficiency is low. In order to ensure the drying of the plastic strips, multiple sets of drying equipment are needed to dry the plastic strips, which increases the cost of plastic processing. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a new drying device for plastic strips. The specific technical solution is as follows:

[0005] A novel drying device for plastic strips includes a fan and a bracket arranged outside the fan, a heating box for air heating being provided at the air inlet of the fan, a suction drying element being installed on the side of the heating box, and a blowing drying element being provided at the air outlet of the fan, wherein both the suction drying element and the blowing drying element are installed on the bracket, and a strip guide wheel assembly for supporting the strips is provided at the upper end of each of the suction drying element and the blowing drying element;

[0006] The material strip guide wheel assembly includes a supporting guide wheel and a downward pressure guide wheel arranged directly above the supporting guide wheel, and elastic downward pressure members are installed at both ends of the downward pressure guide wheel.

[0007] Preferably, the suction drying element includes an air inlet pipe installed on the side of the heating box, an air suction hood is welded to the upper end of the air inlet pipe, two air inlet plates distributed in an "eight" shape are welded to the open end of the air suction hood, and two material strip guide wheel assemblies installed at the open end of the air suction hood are symmetrical about the two air inlet plates.

[0008] Preferably, the upper end of the air inlet plate is provided with guide grooves distributed at equal intervals.

[0009] Preferably, the blowing and drying component includes an air outlet pipe installed at the fan outlet, an air outlet hood is welded to the upper end of the air outlet pipe, two material strip guide wheel assemblies installed at the open end of the air outlet hood are symmetrically arranged, a protective cover is provided directly above the air outlet hood, and support rods are welded to the four corners of the lower end of the protective cover, and the lower end of the support rod is inserted into the hole opened at the upper end of the air outlet hood.

[0010] Preferably, the elastic downward pressure member includes a support plate and a guide rod welded to the upper end of the support plate, the outer portion of the guide rod is sleeved with a spring and a slider, and the two ends of the spring are welded between the support plate and the slider, and the slider is rotatably mounted on the end of the downward pressure guide wheel.

[0011] Preferably, the heating box includes a box body and two guide plates staggered and welded in the box body. Three groups of heating wires are installed in the box body, and the two guide plates are located between the three groups of heating wires.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. A heating box is installed through the air inlet of the fan, so that the air can enter the heating box from the suction drying part to be heated under the action of the fan, and the heated air is blown out by the blowing drying part, so that the suction drying part preliminarily dries the material strips by the inhaled air, and the blowing drying part further dries the material strips by the hot air blown out, thereby increasing the efficiency of drying the material strips, and the material strip guide wheel assembly installed on the upper ends of the suction drying part and the blowing drying part supports the material strips through the material strip guide wheel assembly, which is convenient for stable movement of the material strips, and the material strip guide wheel assembly consists of a supporting guide wheel, a downward pressure guide wheel and an elastic downward pressure piece, and the supporting guide wheel guides the material strips through the grooves opened on the surface to prevent the problem of stacking of the material strips during guidance, and the downward pressure guide wheel limits the pressure of the material strips on the supporting guide wheel through the elastic downward pressure pieces installed at both ends, thereby improving the stability of the material strip movement.

[0014] 2. The suction drying component is composed of an air inlet pipe, an air suction hood, and an air inlet plate. The air suction hood is installed at the air inlet of the fan through the air inlet pipe and the heating box. The two air inlet plates welded at the open end of the air suction hood make it convenient for the two air inlet plates to be distributed in an "eight" shape to reduce the air inlet area at the upper end, which is conducive to forming a faster air flow rate at the open end of the air suction hood. The fast flow rate is conducive to evaporating water stains on the surface of the material strips. The guide groove opened at the upper end of the air inlet plate makes it convenient for air to enter through the guide groove, which is convenient for dispersing the air on the upper end of the air inlet plate and facilitating the drying of multiple strands of material strips.

[0015] 3. The air drying component is composed of an air outlet pipe, an air outlet hood, a protective cover and a support rod. The air outlet hood is installed at the air outlet of the fan through the air outlet pipe, so that the hot air blown out by the fan enters the air outlet hood to dry the material strips. The protective cover above the air outlet hood is supported by the support rod, so that the hot air blown upward by the air outlet hood is blocked by the protective cover, which increases the contact time between the hot air and the material strips, thereby improving the drying efficiency of the material strips.

[0016] 4. Through the elastic downward pressure piece composed of a support plate, a guide rod, a spring and a slider, the upper end of the guide rod is welded to the upper end of the support plate, and the guide rod is covered with a spring and a slider. The two ends of the spring are welded between the support plate and the slider. The slider is rotatably installed on the end of the downward pressure guide wheel, so that the guide rod can guide the downward pressure guide wheel. The compressed spring provides downward pressure to the downward pressure guide wheel, so that the material strip guide wheel assembly can guide material strips of different sizes.

[0017] 5. The heating box is composed of a box body, a guide plate and a heating wire. The two guide plates are welded in the box body at different positions to form an "S"-shaped channel. The two guide plates are located between the three groups of heating wires, so that the air can better contact with the heating wires when flowing in the box, thereby improving the efficiency of the heating wires in heating the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the air inlet plate structure in the present utility model;

[0021] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 5 This is a schematic diagram of the heating box structure in the present utility model.

[0023] Figure numerals: 1. Fan; 2. Air inlet pipe; 3. Air suction hood; 4. Air outlet pipe; 5. Air outlet hood; 6. Material strip guide wheel assembly; 61. Support guide wheel; 62. Down-pressure guide wheel; 63. Elastic down-pressure member; 631. Support plate; 632. Guide rod; 633. Spring; 634. Slider; 7. Air inlet plate; 8. Guide groove; 9. Protective cover; 10. Support rod; 11. Heating box; 111. Box body; 112. Guide plate; 113. Heating wire; 12. Bracket. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present utility model are described below.

[0025] See also Figure 1-5The utility model provides a technical solution: a new drying device for plastic strips, comprising a fan 1 and a bracket 12 arranged outside the fan 1, a heating box 11 for air heating is provided at the air inlet of the fan 1, a suction drying component is installed on the side of the heating box 11, and a blowing drying component is provided at the air outlet of the fan 1, and the suction drying component and the blowing drying component are both installed on the bracket 12, and the upper ends of the suction drying component and the blowing drying component are both provided with a strip guide wheel assembly 6 for supporting the strips;

[0026] The material strip guide wheel assembly 6 includes a supporting guide wheel 61 and a pressing guide wheel 62 arranged just above the supporting guide wheel 61 . Elastic pressing members 63 are installed at both ends of the pressing guide wheel 62 .

[0027] The hot air is then blown out of the drying box 11 so that the drying box 10 can dry the strips of material and the hot air can be blown out of the drying box 11 by the fan 1.

[0028] Specifically, the suction drying component includes an air inlet pipe 2 installed on the side of the heating box 11, an air suction hood 3 is welded to the upper end of the air inlet pipe 2, and two air inlet plates 7 distributed in an "eight" shape are welded to the open end of the air suction hood 3. The two material strip guide wheel assemblies 6 installed at the open end of the air suction hood 3 are symmetrical about the two air inlet plates 7, and the upper end of the air inlet plate 7 is provided with guide grooves 8 distributed at equal intervals.

[0029] In this embodiment, a suction drying component is provided which is composed of an air inlet pipe 2, an air suction hood 3 and an air inlet plate 7. The air suction hood 3 is installed at the air inlet of the fan 1 through the air inlet pipe 2 and the heating box 11. The two air inlet plates 7 welded at the open end of the air suction hood 3 make it convenient for the two air inlet plates 7 distributed in an "eight" shape to reduce the air inlet area at the upper end, thereby facilitating the formation of a faster air flow rate at the open end of the air suction hood 3. A fast flow rate is beneficial to the evaporation of water stains on the surface of the material strips. The guide groove 8 opened at the upper end of the air inlet plate 7 facilitates the entry of air through the guide groove 8, facilitates the dispersion of the air at the upper end of the air inlet plate 7, and facilitates the drying of multiple material strips.

[0030] Specifically, the hair drying component includes an air outlet pipe 4 installed at the air outlet of the fan 1, an air outlet hood 5 is welded to the upper end of the air outlet pipe 4, two material strip guide wheel assemblies 6 installed at the open end of the air outlet hood 5 are symmetrically arranged, and a protective cover 9 is provided directly above the air outlet hood 5. The four corners of the lower end of the protective cover 9 are welded with support rods 10, and the lower end of the support rod 10 is inserted into the hole opened at the upper end of the air outlet hood 5.

[0031] In this embodiment, the blowing and drying component is composed of an air outlet pipe 4, an air outlet hood 5, a protective cover 9 and a support rod 10, and the air outlet hood 5 is installed at the air outlet of the fan 1 through the air outlet pipe 4, so that the hot air blown out by the fan 1 enters the air outlet hood 5 to dry the material strips, and the protective cover 9 above the air outlet hood 5 is supported by the support rod 10, so that the hot air blown upward by the air outlet hood 5 is blocked by the protective cover 9, which increases the contact time between the hot air and the material strips, thereby improving the efficiency of drying the material strips.

[0032] Specifically, the elastic downward pressure member 63 includes a support plate 631 and a guide rod 632 welded to the upper end of the support plate 631. The outer portion of the guide rod 632 is sleeved with a spring 633 and a slider 634, and both ends of the spring 633 are welded between the support plate 631 and the slider 634. The slider 634 is rotatably installed on the end of the downward pressure guide wheel 62.

[0033] In this embodiment, an elastic downward pressing member 63 is composed of a support plate 631, a guide rod 632, a spring 633 and a slider 634, and the upper end of the guide rod 632 is welded to the upper end of the support plate 631, and a spring 633 and a slider 634 are mounted on the guide rod 632. Both ends of the spring 633 are welded between the support plate 631 and the slider 634. The slider 634 is rotatably installed on the end of the downward pressing guide wheel 62, so that the guide rod 632 can guide the downward pressing guide wheel 62. The compressed spring 633 provides downward pressure on the downward pressing guide wheel 62, so that the material strip guide wheel assembly 6 can guide material strips of different sizes.

[0034] Specifically, the heating box 11 includes a box body 111 and two guide plates 112 staggered and welded in the box body 111 . Three groups of heating wires 113 are installed in the box body 111 , and the two guide plates 112 are located between the three groups of heating wires 113 .

[0035] In this embodiment, the heating box 11 is composed of a box body 111, a guide plate 112 and a heating wire 113, and two guide plates 112 are staggered and welded in the box body 111, so that an "S"-shaped channel is formed in the box body 111, and the two guide plates 112 are located between the three groups of heating wires 113, so that the air can better contact with the heating wire 113 when flowing in the box body 111, thereby improving the efficiency of the heating wire 113 in heating the air.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel drying device for plastic strips, comprising a fan (1) and a bracket (12) arranged outside the fan (1), characterized in that: The air inlet of the fan (1) is provided with a heating box (11) for heating air, the side of the heating box (11) is provided with an air suction drying component, the air outlet of the fan (1) is provided with a blowing drying component, and the air suction drying component and the blowing drying component are both installed on a bracket (12), and the upper ends of the air suction drying component and the blowing drying component are both provided with a material strip guide wheel assembly (6) for supporting the material strip; The material strip guide wheel assembly (6) includes a supporting guide wheel (61) and a downward pressure guide wheel (62) arranged directly above the supporting guide wheel (61), and elastic downward pressure members (63) are installed at both ends of the downward pressure guide wheel (62).

2. A novel drying device for plastic strips according to claim 1, characterized in that: The suction drying element comprises an air inlet pipe (2) mounted on the side of a heating box (11); an air suction hood (3) is welded to the upper end of the air inlet pipe (2); two air inlet plates (7) arranged in an "eight" shape are welded to the open end of the air suction hood (3); and two material strip guide wheel assemblies (6) mounted on the open end of the air suction hood (3) are symmetrical about the two air inlet plates (7).

3. A novel drying device for plastic strips according to claim 2, characterized in that: The upper end of the air inlet plate (7) is provided with guide grooves (8) distributed at equal intervals.

4. A novel drying device for plastic strips according to claim 2, characterized in that: The blowing and drying component comprises an air outlet pipe (4) installed at the air outlet of the blower (1), an air outlet cover (5) is welded to the upper end of the air outlet pipe (4), two material strip guide wheel assemblies (6) installed at the open end of the air outlet cover (5) are symmetrically arranged, a protective cover (9) is arranged directly above the air outlet cover (5), and support rods (10) are welded to the four corners of the lower end of the protective cover (9), and the lower end of the support rod (10) is inserted into the hole opened at the upper end of the air outlet cover (5).

5. A novel drying device for plastic strips according to claim 1, characterized in that: The elastic downward pressing member (63) includes a support plate (631) and a guide rod (632) welded to the upper end of the support plate (631). The outer portion of the guide rod (632) is sleeved with a spring (633) and a slider (634). The two ends of the spring (633) are welded between the support plate (631) and the slider (634). The slider (634) is rotatably mounted on the end of the downward pressing guide wheel (62).

6. A novel drying device for plastic strips according to claim 1, characterized in that: The heating box (11) comprises a box body (111) and two guide plates (112) staggeredly welded in the box body (111); three groups of heating wires (113) are installed in the box body (111), and the two guide plates (112) are located between the three groups of heating wires (113).

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