Extrusion device for composite PVC (polyvinyl chloride) plastic

Abstract

The utility model provides a compound PVC (polyvinyl chloride) plastic extruding device which comprises a processing material pipe, a discharging circular plate is mounted at the front end of the processing material pipe, an extruding front plate is fixedly connected to one end, far away from the processing material pipe, of the discharging circular plate, and an electric rotating shaft is fixedly connected to the middle of one end, far away from the discharging circular plate, of the extruding front plate. A transverse rotating strip plate is fixedly connected to the output end of the electric rotating shaft, a fixed vertical plate is fixedly connected to the end, away from the discharging circular plate, of the extrusion front plate, a movable vertical plate is fixedly connected to the end, away from the discharging circular plate, of the fixed vertical plate, and grinding knife inner surface layers are fixedly connected to the ends, close to each other, of the movable vertical plate and the fixed vertical plate; according to the scheme, the grinding device matched with the cutting knife face is arranged above the extrusion front plate, the grinding knife inner face layer between the fixed vertical plate and the movable vertical plate can make contact with the cutting knife face, friction force is generated, chippings and blunt objects outside the cutting knife face are evenly ground, and the cutting precision of the cutting knife face is kept; furthermore, the processing effect of an extruded finished product is better.

Description

Technical Field

[0001] The utility model relates to an extrusion device for composite PVC plastics, belonging to the technical field of extrusion devices. Background Art

[0002] It is also called extrusion molding or extrusion in plastic processing and extrusion in rubber processing. It refers to a processing method in which the material passes through the action between the barrel and the screw of the extruder, is plasticized by heat, and is pushed forward by the screw, and continuously passes through the die to form various cross-section products or semi-finished products.

[0003] The PVC plastic extruder with Chinese patent number CN201128222Y, the PVC plastic extruder, comprises a reduction unit, a hopper, a heating extrusion screw sleeve and an extrusion port and an extrusion screw. Due to the adoption of the above structure, the plastic raw material is not easy to stick to the screw, which speeds up its extrusion speed, thereby improving the production capacity. The experimental data shows that it is 1.5 times that of the double screw. Compared with the prior art, it has the advantages of fast extrusion speed and strong production capacity.

[0004] The extruded strip plastic needs to be cut into finished granules. However, if the cutting time of the cutting blade is too long, the surface of the cutting blade will be easily blunted due to strong friction between the cutting blade and the plastic, making the cutting surface of the cut granules not smooth enough, which is not conducive to ensuring the processing efficiency of the finished granules after extrusion. Therefore, it is necessary to design a composite PVC plastic extrusion device with a longer cutting life to solve the above problems.

[0005] Therefore, a composite PVC plastic extrusion device is proposed. Utility Model Content

[0006] In view of this, the utility model provides a composite PVC plastic extrusion device to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0007] The technical solution of the utility model is achieved as follows: a composite PVC plastic extrusion device comprises a processing material tube, a discharging circular plate is installed at the front end of the processing material tube, an end of the discharging circular plate away from the processing material tube is fixedly connected to an extrusion front plate, an electric rotating shaft is fixedly connected to the middle of an end of the extrusion front plate away from the discharging circular plate, an output end of the electric rotating shaft is fixedly connected to a transverse rotating strip plate, an end of the extrusion front plate away from the discharging circular plate is fixedly connected to a fixed vertical plate, an end of the fixed vertical plate away from the discharging circular plate is fixedly connected to a movable vertical plate, and ends of the movable vertical plate and the fixed vertical plate close to each other are fixedly connected to a sharpening inner surface layer.

[0008] Further preferably, the inner end of the processing material tube is filled with a plurality of material liquids, and the fixed vertical plate is located above the electric rotating shaft.

[0009] Further preferably, a cutting blade surface is fixedly connected to the upper end of the transverse strip, and the cutting blade surface cooperates with the discharge circular hole.

[0010] Further preferably, a plurality of discharge circular holes are opened at the outer end of the extrusion front plate, and the plurality of discharge circular holes are arranged equidistantly in a ring shape.

[0011] Further preferably, the cutting blade surface passes through the position between the fixed vertical plate and the inner clamp spring, and the cutting blade surface is in contact with the inner surface layer of the sharpening blade.

[0012] Further preferably, the right ends of the fixed vertical plate and the movable vertical plate are fixedly connected with inclined outward-facing vertical bars, and the two inclined outward-facing vertical bars cooperate with the cutting blade surface.

[0013] Further preferably, an inner groove is formed at the inner end of the transverse slat, and a micro fan is externally connected to the inner groove.

[0014] Further preferably, an air outlet mesh plate is fixedly connected to one end of the internal groove close to the extrusion front plate, and the output end of the micro fan is connected to the air outlet mesh plate.

[0015] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0016] 1. This solution sets a grinding device that cooperates with the cutting blade surface above the extrusion front plate. When the cutting blade surface rotates with the electric shaft, the cutting blade surface can be inserted into the position between the fixed vertical plate and the movable vertical plate. The internal clamping spring between the fixed vertical plate and the movable vertical plate is used to make the two and the cutting surface of the cutting blade surface abut against each other. After the abutment is completed, the inner surface layer of the grinder between the fixed vertical plate and the movable vertical plate can contact the cutting blade surface and generate friction, so that the debris and blunt objects outside the cutting blade surface are evenly ground, the cutting accuracy of the cutting blade surface is maintained, and the processing effect of the finished product after extrusion is better.

[0017] Second, when the cutting blade passes through the fixed vertical plate and the movable vertical plate, an inclined outward-flaring vertical bar can be set on the sides of the two. The inclined outward-flaring vertical bar can facilitate the cutting blade to more accurately pass through the fixed vertical plate and the movable vertical plate, and play a guiding role. An internal groove can be set in the horizontal rotating strip plate. The internal groove uses a micro-fan to transport cooling airflow to the extrusion direction of the extrusion front plate through the air outlet mesh plate, so that the cooling and hardening effect after extrusion is better and the risk of raw material adhesion is avoided.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the axial side structure of the processing material tube of the utility model;

[0021] Figure 2 This is a schematic diagram of the axial side structure of the discharging circular plate of the utility model;

[0022] Figure 3 It is a schematic diagram of the enlarged structure of the fixed vertical plate of the utility model;

[0023] Figure 4 For the utility model Figure 3 A schematic diagram of a partially cut-away and enlarged structure of a middle fixed vertical plate;

[0024] Figure 5 It is a schematic diagram of the axial side structure of the transverse slat of the utility model.

[0025] Figure numerals: 1. Processing material pipe; 2. Discharge circular plate; 3. Extrusion front plate; 4. Discharge circular hole; 5. Electric rotating shaft; 6. Horizontal rotating strip plate; 7. Cutting knife surface; 8. Fixed vertical plate; 9. Internal clamp spring; 10. Movable vertical plate; 11. Sharpening inner surface layer; 12. Inclined outward vertical bar; 13. Air outlet mesh plate; 14. Internal groove. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] like Figure 1-5As shown, an embodiment of the utility model provides an extrusion device for composite PVC plastic, comprising a processing material tube 1, a discharging circular plate 2 is installed at the front end of the processing material tube 1, an end of the discharging circular plate 2 away from the processing material tube 1 is fixedly connected to an extrusion front plate 3, an end of the extrusion front plate 3 away from the discharging circular plate 2 is fixedly connected to an electric rotating shaft 5, an output end of the electric rotating shaft 5 is fixedly connected to a transverse strip plate 6, an end of the extrusion front plate 3 away from the discharging circular plate 2 is fixedly connected to a fixed vertical plate 8, an end of the fixed vertical plate 8 away from the discharging circular plate 2 is fixedly connected to a movable vertical plate 10, and ends of the movable vertical plate 10 and the fixed vertical plate 8 close to each other are fixedly connected to a sharpening inner surface layer 11.

[0030] The inner end of the processing material tube 1 is filled with a certain amount of material liquid, the fixed vertical plate 8 is located above the electric rotating shaft 5, the upper end of the transverse strip plate 6 is fixedly connected with a cutting blade surface 7, the cutting blade surface 7 and the discharge circular hole 4 cooperate with each other, a plurality of discharge circular holes 4 are opened at the outer end of the extrusion front plate 3, and the plurality of discharge circular holes 4 are arranged in a ring shape with equal distances, the cutting blade surface 7 passes through the position between the fixed vertical plate 8 and the inner clamp spring 9, and the cutting blade surface 7 is in contact with the inner surface layer 11 of the grinding knife.

[0031] Example 2

[0032] In one embodiment, the right ends of the fixed vertical plate 8 and the movable vertical plate 10 are fixedly connected with an inclined outward-flapping vertical bar 12 , the two inclined outward-flapping vertical bars 12 cooperate with the cutting blade surface 7 , and the inner end of the transverse strip plate 6 is provided with an internal groove 14 .

[0033] A micro fan is externally connected through the internal groove 14 , and an end of the internal groove 14 close to the extrusion front plate 3 is fixedly connected to an air outlet mesh plate 13 , and an output end of the micro fan is communicated with the air outlet mesh plate 13 .

[0034] When the utility model is working: the scheme melts and mixes the raw materials in the processing material tube 1 and then discharges them through the extrusion front plate 3 outside the discharge circular plate 2. The raw materials are in strip shape when discharged from the discharge circular hole 4. At this time, the transverse strip plate 6 can be driven by the electric shaft 5 to rotate outside the extrusion front plate 3 to cut the extruded strip plastic into finished granular products. When the cutting time of the cutting blade 7 is too long, the surface of the cutting blade 7 is prone to passivation after strong friction with the plastic, making the cut surface of the cut granular product not smooth enough. Therefore, a grinding device that cooperates with the cutting blade 7 is set above the extrusion front plate 3. When the cutting blade 7 rotates with the electric shaft 5, the cutting blade 7 can be inserted between the fixed vertical plate 8 and the movable vertical plate 10, and the internal clamping spring 9 between the fixed vertical plate 8 and the movable vertical plate 10 is used to make the two and the cutting blade 7 smooth. The cutting surfaces abut against each other. After the abutment is completed, the inner surface layer 11 of the grinding knife between the fixed vertical plate 8 and the movable vertical plate 10 can contact with the cutting blade 7 and generate friction, and evenly grind the debris and blunt objects outside the cutting blade 7 to maintain the cutting accuracy of the cutting blade 7, thereby making the finished product processing effect after extrusion better. When the cutting blade 7 passes through the fixed vertical plate 8 and the movable vertical plate 10, an inclined outward-flashing vertical bar 12 can be set on the side of the two. The inclined outward-flashing vertical bar 12 can facilitate the cutting blade 7 to pass through the fixed vertical plate 8 and the movable vertical plate 10 more accurately, and play a guiding role. An internal groove 14 can be set in the horizontal rotating strip plate 6. The internal groove 14 uses a micro-fan to transport cooling airflow to the extrusion direction of the extrusion front plate 3 through the air outlet mesh plate 13, so that the cooling and hardening effect after extrusion is better and the risk of raw material adhesion is avoided.

[0035] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A composite PVC plastic extrusion device, characterized in that: The invention comprises a processing material tube (1), wherein a discharge circular plate (2) is installed at the front end of the processing material tube (1), an end of the discharge circular plate (2) away from the processing material tube (1) is fixedly connected to an extrusion front plate (3), an electric rotating shaft (5) is fixedly connected to the middle of the end of the extrusion front plate (3) away from the discharge circular plate (2), an output end of the electric rotating shaft (5) is fixedly connected to a transverse strip plate (6), an end of the extrusion front plate (3) away from the discharge circular plate (2) is fixedly connected to a fixed vertical plate (8), an end of the fixed vertical plate (8) away from the discharge circular plate (2) is fixedly connected to a movable vertical plate (10), and the ends of the movable vertical plate (10) and the fixed vertical plate (8) close to each other are fixedly connected to a sharpening inner surface layer (11).

2. The composite PVC plastic extrusion device according to claim 1, characterized in that: The inner end of the processing material tube (1) is filled with a certain amount of material liquid, and the fixed vertical plate (8) is located above the electric rotating shaft (5).

3. The composite PVC plastic extrusion device according to claim 1, characterized in that: The upper end of the transverse strip plate (6) is fixedly connected with a cutting blade surface (7), and the cutting blade surface (7) cooperates with the discharge circular hole (4).

4. The composite PVC plastic extrusion device according to claim 1, characterized in that: The outer end of the extrusion front plate (3) is provided with a plurality of discharge circular holes (4), and the plurality of discharge circular holes (4) are arranged in a ring shape and at equal distances from each other.

5. The composite PVC plastic extrusion device according to claim 3, characterized in that: The cutting blade surface (7) passes through the position between the fixed vertical plate (8) and the inner clamp spring (9), and the cutting blade surface (7) is in contact with the inner surface layer (11) of the sharpening blade.

6. The composite PVC plastic extrusion device according to claim 3, characterized in that: The right ends of the fixed vertical plate (8) and the movable vertical plate (10) are fixedly connected with inclined outward-facing vertical bars (12), and the two inclined outward-facing vertical bars (12) cooperate with the cutting blade surface (7).

7. The composite PVC plastic extrusion device according to claim 1, characterized in that: An inner groove (14) is formed at the inner end of the transverse strip plate (6), and a micro fan is externally connected to the inner groove (14).

8. The composite PVC plastic extrusion device according to claim 4, characterized in that: An end of the internal groove (14) close to the extrusion front plate (3) is fixedly connected to an air outlet mesh plate (13), and an output end of the micro fan is in communication with the air outlet mesh plate (13).

Images