PVC plastic particle hot melting device with pretreatment function

Abstract

The PVC plastic particle hot melting device with the pretreatment function comprises a base, a vertical pretreatment box is installed on one side of the top of the base, an air inlet pipe is installed on one side wall of the pretreatment box, and an air outlet pipe is installed on the other side wall of the pretreatment box; a first fan and a second fan are installed in the air inlet pipe and the air outlet pipe respectively, a spiral pipe is arranged on the inner wall of the air inlet pipe in a spiral shape, and a plurality of inclined drying inclined plates are installed in the pretreatment box. The PVC plastic particle hot melting device with the pretreatment function is provided with a liquid pump, a first fan, a spiral pipe and a drying inclined plate, hot water in a heat exchange ring is conveyed into the spiral pipe in an air inlet pipe and the drying inclined plate through the liquid pump, external air is conveyed into a base through the first fan, falling raw materials are subjected to hot air winnowing, and the raw materials are subjected to hot air winnowing; and after the particles fall onto the drying inclined plate, hot water in the drying inclined plate can transfer heat to the surface of the raw material, so that the raw material is further dried and preheated.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic hot-melt devices, in particular to a PVC plastic particle hot-melt device with a pre-treatment function. Background Art

[0002] In the processing of plastic products, most of the processing steps require heating the plastic particles to melt and then forming them through injection molds.

[0003] Before the plastic particles are heated and melted, if the particles are not properly stored and not clean enough, or if there is still moisture on the surface after cleaning, after entering the hot melt device and mixing with the liquid plastic, it will affect the purity of the plastic raw materials, and then cause defects in the plastic finished product during the subsequent molding process. Therefore, the plastic particles entering the hot melt device need to be cleaned. Utility Model Content

[0004] The purpose of the utility model is to provide a PVC plastic particle hot-melt device with a pretreatment function to solve the problem proposed in the above-mentioned background technology that the particles are not properly stored and are not clean enough, or after cleaning, there is still moisture remaining on the surface, which enters the hot-melt device and mixes with the liquid plastic, which will affect the purity of the plastic raw material.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a PVC plastic particle hot-melting device with pre-treatment function, comprising a base,

[0006] A vertical pretreatment box is installed on one side of the top of the base, an air inlet pipe is installed on one side wall of the pretreatment box, and an air outlet pipe is installed on the other side wall of the pretreatment box, a fan 1 and a fan 2 are installed in the air inlet pipe and the air outlet pipe respectively, a spiral pipe is spirally arranged on the inner wall of the air inlet pipe, and a plurality of inclined drying inclined plates are installed in the pretreatment box;

[0007] A horizontal hot melt device body is installed on the other side of the top of the base, and a heater is provided on the outer side of the hot melt device body. A heat exchange ring is provided on the outer side of the heater. One end of a water pipe is connected to the top of the heat exchange ring. The other end of the water pipe is connected to the spiral pipe and the drying inclined plate through a tee. A liquid pump is installed on the water pipe.

[0008] By adopting the above technical solution, when in use, plastic particles are added to the pretreatment box, and then the heat overflowing from the heater is exported to the drying inclined plate and the spiral tube in the air inlet duct through the heat exchange ring. The fan in the air inlet duct blows air to the particles falling in the pretreatment box, and the external air is heated by the spiral tube when passing through the air inlet duct to achieve the dust blowing effect of hot air, while the drying inclined plate preheats and dries the fallen particles.

[0009] As a further solution of the utility model: a feed hopper is provided on the top of the pretreatment box, and an annular cavity is opened inside the side wall of the pretreatment box, the annular cavity is connected with the water injection cavity in the drying inclined plate, a guide block is provided at the bottom of the feed hopper in the pretreatment box, and an inclined guide plate is installed on the inner wall of the pretreatment box below the air outlet pipe.

[0010] By adopting the above technical solution, when in use, the boring material can be transported into the pretreatment box through the feed hopper, and the design of the ring cavity facilitates the connection between the drying inclined plate and the heat exchange ring.

[0011] As a further solution of the utility model: a water cavity is opened in the heat exchange ring, and heat exchange liquid is injected into the water cavity. A second return water pipe is also connected between the internal water cavity and the ring cavity of the heat exchange ring.

[0012] By adopting the above technical solution, when in use, the spiral tube and the drying inclined plate are heated by conveying the heat exchange liquid.

[0013] As a further solution of the utility model: the other end of the spiral tube is connected to one end of the return pipe 1, and the other end of the return pipe 1 is communicated with the water cavity in the heat exchange ring.

[0014] By adopting the above technical solution, when in use, the liquid in the spiral tube is led out to the heat exchange ring for reheating through the design of the return pipe 1.

[0015] As a further solution of the utility model: a vertical filter screen is installed on one side of the air outlet pipe close to the pretreatment box, and a detachable collection box is installed at the bottom of the air outlet pipe.

[0016] By adopting the above technical solution, during use, dust is filtered through the filter net and the dust is collected by the collection box.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the PVC plastic particle hot-melt device with pretreatment function is

[0018] A liquid pump, a fan 1, a spiral tube and a drying inclined plate are provided. The liquid pump is used to transport the hot water in the heat exchange ring to the spiral tube in the air inlet pipe and the drying inclined plate. The fan 1 transports the external air into the base to perform hot air air selection on the falling raw materials. After the particles fall onto the drying inclined plate, the hot water in the drying inclined plate will transfer heat to the surface of the raw materials, further drying and preheating the raw materials, and preventing the moisture on the surface of the raw materials from entering the hot melting device. This design utilizes the heat overflowed from the heater and saves resources.

[0019] In addition, the PVC plastic particle hot melt device with pretreatment function is also provided with fan 2 and a collection box. Fan 2 attracts light impurities blown out by the wind and filters them using the filter on the side of fan 2. After accumulating more impurities, the impurities will fall into the collection box, realizing the collection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0023] In the figure: 1. base; 2. pretreatment box; 201. air inlet pipe; 202. air outlet pipe; 203. feed hopper; 204. annular cavity; 3. hot melt device body; 4. heater; 5. heat exchange ring; 6. water pipe; 7. liquid pump; 8. return pipe 1; 9. return pipe 2; 10. guide block; 11. fan 1; 12. spiral tube; 13. guide plate; 14. drying inclined plate; 15. fan 2; 16. collection box. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-3 The utility model provides a technical solution: a PVC plastic particle hot-melting device with a pre-treatment function, comprising a base 1,

[0026] A vertical pretreatment box 2 is installed on one side of the top of the base 1, an air inlet pipe 201 is installed on one side wall of the pretreatment box 2, and an air outlet pipe 202 is installed on the other side wall of the pretreatment box 2, a fan 11 and a fan 2 15 are installed in the air inlet pipe 201 and the air outlet pipe 202 respectively, a spiral tube 12 is spirally arranged on the inner wall of the air inlet pipe 201, and a plurality of inclined drying inclined plates 14 are installed in the pretreatment box 2;

[0027] A horizontal hot melt device body 3 is installed on the other side of the top of the base 1, and a heater 4 is sleeved on the outer side of the hot melt device body 3, and a heat exchange ring 5 is sleeved on the outer side of the heater 4. One end of a water pipe 6 is connected to the top of the heat exchange ring 5, and the other end of the water pipe 6 is connected to the spiral tube 12 and the drying inclined plate 14 through a tee, and a liquid pump 7 is installed on the water pipe 6.

[0028] See also Figure 2 Further, a feed hopper 203 is provided on the top of the pretreatment box 2, and an annular cavity 204 is opened inside the side wall of the pretreatment box 2, and the annular cavity 204 is connected with the water injection cavity in the drying inclined plate 14. A guide block 10 is provided at the bottom of the feed hopper 203 in the pretreatment box 2, and an inclined guide plate 13 is installed on the inner wall of the pretreatment box 2 below the air outlet pipe 202;

[0029] Specifically, a baffle that can move laterally is installed in the guide block 10 through an electric push rod, which facilitates the control of the size of the channel for the material to fall.

[0030] See also Figure 2 Furthermore, a water cavity is opened in the heat exchange ring 5, and a heat exchange liquid is injected into the water cavity. A return water pipe 9 is also connected between the internal water cavity of the heat exchange ring 5 and the ring cavity 204.

[0031] See also Figure 1 and Figure 2 Furthermore, the other end of the spiral tube 12 is connected to one end of the return pipe 8, and the other end of the return pipe 8 is connected to the water cavity in the heat exchange ring 5.

[0032] See also Figure 2 and Figure 3 , further, a vertical filter screen is installed on one side of the air outlet pipe 202 close to the pretreatment box 2, and a detachable collection box 16 is installed at the bottom of the air outlet pipe 202;

[0033] Specifically, a liftable scraper is installed in the air outlet pipe 202, one side of the scraper contacts the side wall of the filter, and the top of the scraper is rotatably connected to a screw rod, the top of the screw rod passes through the top of the air outlet pipe 202 and is threadedly connected to the threaded hole at the top of the air outlet pipe 202.

[0034] Working principle: When using the PVC plastic particle hot melt device with pretreatment function, plastic particles are transported to the pretreatment box 2 through the feed hopper 203, and the hot water in the heat exchange ring 5 is transported to the spiral tube 12 in the air inlet pipe 201 and the drying inclined plate 14 by the liquid pump 7. The fan 11 transports external air to the base 1, and the fallen raw materials are subjected to hot air selection. After the particles fall on the drying inclined plate 14, the hot water in the drying inclined plate 14 will transfer heat to the surface of the raw materials, further drying and preheating the raw materials, and preventing moisture on the surface of the raw materials from entering the hot melt device. This design utilizes the heat overflowed from the heater 4 to save resources. The fan 2 15 attracts the light impurities blown out by the wind selection, and uses the filter on the side of the fan 2 15 to filter. After accumulating more impurities, the impurities will fall into the collection box 16 to realize the collection process. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0035] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A PVC plastic particle hot-melt device with a pre-treatment function, comprising a base (1), characterized in that: A vertical pretreatment box (2) is installed on one side of the top of the base (1); an air inlet pipe (201) is installed on one side wall of the pretreatment box (2); and an air outlet pipe (202) is installed on the other side wall of the pretreatment box (2); a fan 1 (11) and a fan 2 (15) are installed in the air inlet pipe (201) and the air outlet pipe (202), respectively; a spiral tube (12) is spirally arranged on the inner wall of the air inlet pipe (201); and a plurality of inclined drying inclined plates (14) are installed in the pretreatment box (2); A horizontal hot melt device body (3) is installed on the other side of the top of the base (1), and a heater (4) is sleeved on the outer side of the hot melt device body (3), and a heat exchange ring (5) is sleeved on the outer side of the heater (4). The top of the heat exchange ring (5) is connected to one end of a water pipe (6), and the other end of the water pipe (6) is respectively connected to the spiral pipe (12) and the drying inclined plate (14) through a tee, and a liquid pump (7) is installed on the water pipe (6).

2. A PVC plastic particle hot-melt device with pretreatment function according to claim 1, characterized in that: A feed hopper (203) is provided on the top of the pretreatment box (2), and an annular cavity (204) is provided inside the side wall of the pretreatment box (2), the annular cavity (204) being connected to a water injection cavity in the drying inclined plate (14), a guide block (10) is provided at the bottom of the feed hopper (203) in the pretreatment box (2), and an inclined guide plate (13) is installed on the inner wall of the pretreatment box (2) below the air outlet pipe (202).

3. A PVC plastic particle hot-melt device with pretreatment function according to claim 2, characterized in that: A water cavity is provided in the heat exchange ring (5), and a heat exchange liquid is injected into the water cavity. A second water return pipe (9) is also connected between the internal water cavity of the heat exchange ring (5) and the ring cavity (204).

4. The PVC plastic particle hot-melt device with pretreatment function according to claim 1, characterized in that: The other end of the spiral tube (12) is connected to one end of the return water pipe (8), and the other end of the return water pipe (8) is connected to the water cavity in the heat exchange ring (5).

5. The PVC plastic particle hot-melting device with pretreatment function according to claim 1, characterized in that: A vertical filter screen is installed on one side of the air outlet pipe (202) close to the pretreatment box (2), and a detachable collection box (16) is installed at the bottom of the air outlet pipe (202).

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