Extrusion device for solving carbonization yellowing of material strips

Abstract

The utility model discloses an extrusion device for solving the problem of carbonization yellowing of a material strip, which belongs to the field of extruder production process and comprises a machine head, a die head, a guide chute, a waterway channel, a brush, a connecting rod, a sliding block, a guide rail and a base, the die head is arranged on the inclined face of the machine head and connected with the machine head in an attached mode, the guide groove is formed in one side of the die head, is of an obtuse angle structure and is symmetrical to the middle line of a die hole, the base is fixedly connected with the machine head and arranged on the lower side of the die head, the bottom of the guide rail is fixedly connected with the base and is parallel to the die head, and the sliding block is slidably connected with the guide rail. The side face of the sliding block is fixedly connected with a connecting rod, the other end of the connecting rod is fixedly connected with a brush, and the brush is precisely attached to the die head during brushing. The material guide groove structure of the extrusion device disclosed by the utility model is a gradient type material guide structure, and the flowability is similar to that of an external expansion type gradient structure of the cavity, so that local material stagnation can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of extrusion machine production technology, specifically relating to an extrusion device for solving the problem of carbonization and yellowing of material strips. Background Technology

[0002] New materials refer to substances with special functional properties in recent stages. Adding new materials with certain functional properties to some existing materials will give the materials certain corresponding functional properties. When using some modified plastics, some substances with friction resistance, corrosion resistance and other properties are added to them to increase the functionality of the modified plastics. These modified plastics need to be plasticized at high temperature during processing to change the structure of the molecules and make them compatible before cooling and molding into granules.

[0003] Existing modified plastic granules are produced by extruders and then shaped into granules through a die structure. Shaping is a rapid cooling process. The material is still in a high-temperature molten, closed state inside the extruder. It needs to be shaped by the die and then enter an open air environment for rapid cooling and solidification in water. The current mainstream extruder structure is a twin-screw design, which limits the die to a single-row, multi-hole structure with a right-angle connection to the die head. This results in the internal pressure change during shaping decreasing from the center to the sides, and the material's self-circulation fluidity also decreases accordingly. The material's relative residence time increases, leading to localized temperature rises. This causes the ambient temperature of the material to exceed its melting point, resulting in carbonization and yellowing. In addition, the temperature of the existing die head increases during extrusion as heating progresses. Excessive temperature can cause plastic material to adhere to the die head, leading to frequent shutdowns for cleaning and reduced production efficiency. High temperatures can also cause plastic to decompose, resulting in bubbles, discoloration, and yellowing, affecting the quality and appearance of the product. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an extrusion device for solving the problem of carbonization and yellowing of extruded materials.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An extrusion device for solving the problem of carbonization and yellowing of extruded material strips includes a die head, a die, a guide groove, a water channel, a brush, a connecting rod, a slider, a guide rail, and a base. The die head is disposed on the inclined surface of the die head and is in close contact with the die head. The guide groove is disposed on one side of the die head, and the guide groove has an obtuse angle structure and is symmetrical with the center line of the die hole. The base is fixedly connected to the die head and disposed on the lower side of the die head. The bottom of the guide rail is fixedly connected to the base and is parallel to the end face of the die head. The slider is slidably connected to the guide rail. The side of the slider is fixedly connected to the connecting rod. The other end of the connecting rod is fixedly connected to the brush. The brush is in close contact with the die head during washing.

[0007] Preferably, it further includes a first water pump, a first water tank, a second water pump, and a second water tank; one end of the first water pump is fixedly connected to the machine head, and the other end is fixedly connected to the first water tank; one end of the second water pump is fixedly connected to the machine head, and the other end is fixedly connected to the second water tank; the first water pump, the first water tank, the second water pump, and the second water tank are disposed at the bottom of the machine head.

[0008] Preferably, it also includes a die head hole; the die head hole is located in the middle of the die head and communicates with the guide groove, and the axis of the die head hole is located on the same straight line.

[0009] Preferably, it also includes a PLC and a temperature sensor; the PLC and the temperature sensor are disposed on the top of the machine head, one end of the PLC is fixedly connected to the temperature sensor, and the other end of the PLC is fixedly connected to the machine head.

[0010] It also includes a first bracket, a second bracket, a slide rod, a first connecting rod, a second connecting rod, a collar, a third connecting rod, and a fourth connecting rod. The first bracket is vertically fixedly connected to the brush, the second bracket is vertically fixedly connected to the first bracket, the slide rod is movably connected to the second bracket, and the slide rod is arranged parallel to the axis of the mold head hole. The first connecting rod and the fourth connecting rod are both hinged to the collar, the collar is sleeved on the slide rod and slidably connected to the slide rod, and the other end of the second connecting rod and the third connecting rod is provided with a brush. One end of the second connecting rod is hinged to the slide rod, and the middle of the second connecting rod is hinged to the first connecting rod. The third connecting rod is symmetrically arranged with the second connecting rod, and the fourth connecting rod is symmetrically arranged with the first connecting rod.

[0011] The beneficial effects of this utility model are:

[0012] 1. The guide channel of the die head is a sloped material guide, and the flow is similar to the external slope structure of the cavity, avoiding the occurrence of local material stagnation.

[0013] 2. The guide groove of the die head: When the material with the outward-expanding chamfered shape flows out of the die hole, it changes from a high temperature and high pressure state to a low temperature and low pressure state. The instantaneous loss of temperature and pressure makes the material's external tension easily cause deformation and breakage. In addition, due to the cylindrical structure of the die hole groove, the material is prone to roll outward at the end of the groove, forming stringy stagnant material that breaks away from the material strip's trajectory and cools and hardens rapidly. This part is likely to become the source of foreign matter and rough appearance in the finished product. The outward-expanding chamfered structure can release pressure before the material is extruded from the die hole groove, reducing the generation of stringy material. Because of the chamfered structure, the stringy material loses its stagnant carrier and will not enter the finished product with the material strip.

[0014] 3. When the temperature of the compressor head is too high, the water pump will send water from the water tank to the water pipe to cool down the compressor head. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 Front view of the extrusion unit;

[0017] Figure 2 Cross-sectional view of the extrusion unit;

[0018] Figure 3 Front view of the mold head;

[0019] Figure 4 Sectional view of the mold head;

[0020] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0021] In the diagram: 1. Machine head; 2. Die head; 3. Die head hole; 4. Material guide trough; 5. First water pump; 6. First water tank; 7. Second water pump; 8. Second water tank; 9. PLC; 10. Temperature sensor; 11. Water channel; 12. Brush; 13. Connecting rod; 14. Slider; 15. Guide rail; 16. Base; 17. First bracket; 18. Second bracket; 19. Slide rod; 20. First connecting rod; 21. Second connecting rod; 22. Third connecting rod; 23. Fourth connecting rod; 24. Collar. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] An extrusion device for solving the problem of carbonization and yellowing of extruded material strips includes a die head 1, a die head 2, a guide groove 4, a water channel 11, a brush 12, a connecting rod 13, a slider 14, a guide rail 15, and a base 16. The die head 2 is disposed on the inclined surface of the die head 1 and is in close contact with the die head 1. The guide groove 4 is disposed on one side of the die head 2 and has an obtuse angle structure and is symmetrical with the center line of the die hole. The base 16 is fixedly connected to the die head 1 and disposed on the lower side of the die head 2. The bottom of the guide rail 15 is fixedly connected to the base 16 and is parallel to the die head 2. The slider 14 is slidably connected to the guide rail 15. The side of the slider 14 is fixedly connected to the connecting rod 13. The other end of the connecting rod 13 is fixedly connected to the brush 12. The brush 12 is in close contact with the die head 2 during washing.

[0024] One end of the first water pump 5 is fixedly connected to the machine head 1, and the other end is fixedly connected to the first water tank 6; one end of the second water pump 7 is fixedly connected to the machine head 1, and the other end is fixedly connected to the second water tank 8. The first water pump 5, the first water tank 6, the second water pump 7, and the second water tank 8 are located at the bottom of the machine head 1; the die head hole 3 is located in the middle of the die head 2 and communicates with the guide groove 4. The axis of the die head hole 3 is located on the same straight line; the PLC 9 and the temperature sensor 10 are located at the top of the machine head 1. One end of the PLC 9 is fixedly connected to the temperature sensor 10, and the other end of the PLC 9 is fixedly connected to the machine head 1.

[0025] The first bracket 17 is vertically fixedly connected to the brush 12, and the second bracket 18 is vertically fixedly connected to the first bracket 17. The second bracket 18 is parallel to the brush 12. The slide rod 19 is slidably connected to the second bracket 18. Pushing the slide rod 19 can move it into the mold head. Pushing the collar 24 can open the second connecting rod 21 and the third connecting rod 22. Rotating the slide rod 19 allows the brushes on the second connecting rod 21 and the third connecting rod 22 to clean the inner wall of the mold head hole 3. The slide rod 19 is axially parallel to the first bracket 17. The slide rod 19 is parallel to the second bracket 18. The bracket 18 is slidably connected, the slide rod 19 is arranged parallel to the axis of the mold head hole 3, the first connecting rod 20 and the fourth connecting rod 23 are both rotatably connected to the collar 24, the collar 24 is sleeved on the slide rod 19 and slidably connected to the slide rod 19, the other end of the second connecting rod 21 and the third connecting rod 22 is provided with a brush, one end of the second connecting rod 21 is rotatably connected to the slide rod 19, the middle of the second connecting rod 21 is rotatably connected to the first connecting rod 20, the third connecting rod 22 is symmetrically arranged with the second connecting rod 21, and the fourth connecting rod 23 is symmetrically arranged with the first connecting rod 20.

[0026] The sliding of the slide rod 19 can be driven manually, and the rotation of the slide rod 19 can be driven by a motor or manually. The sliding between the collar 24 and the slide rod 19 is a damped sliding, so that the collar 24 can remain relatively stationary with respect to the slide rod 19 when it rotates.

[0027] The specific implementation process of this application includes:

[0028] The die head 1 is heated, and the material enters the feed trough 4. The die head 1 extrudes the material, and the material is squeezed and shaped from the die head hole 3 at the rear end. The obtuse angle structure of the feed trough 4 ensures that the material does not have dead corners under high pressure, and there will be no local material flow obstruction, thus avoiding carbonization of the edge strips. This structure also allows the material on both sides to flow towards the sides with reduced pressure when squeezed by the relatively large pressure in the middle. With the continuous entry and pressure of subsequent materials, the edge material is circulated back to the middle material by the slope structure. The subsequent edge material is then circulated back to the middle material by the pressure of the subsequent middle material. This process is repeated so that all materials can enter the die head hole 3 in sequence for extrusion and shaping, eliminating the generation of stagnant material and cutting off the source of yellowing.

[0029] The machine head 1 serves as the heat source for the mold head 2, and the temperature stability of the machine head 1 determines the stability of the mold head 2. Therefore, temperature control of the machine head 1 will make the mold head 2 work more stably. The temperature control principle of the machine head 1 mainly involves the interaction between the temperature sensor 10, the first water pump 5, the second water tank 6, the second water pump 7, the second water tank 8, and the PLC 9. The temperature sensor 10 is used to monitor the temperature of the machine head 1 in real time. When the temperature of the machine head 1 is too high, the temperature sensor 10 transmits the detected temperature signal to the PLC 9. The PLC 9 controls the first water pump 5 to turn on the switch through the signal. The first water pump 5 delivers water from the first water tank 6 to the water channel 11 to reduce the temperature of the machine head 1.

[0030] The connecting rod 13 and the slider 14 are detachably connected. When the mold head (2) is working, the connecting rod 13 is detached from the slider 14. When the mold head hole 3 needs to be cleaned, the connecting rod 13 is connected to the slider 14. Moving the slider 14 can drive the brush 12 to clean along the mold head hole 3.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An extrusion apparatus for solving the problem of carbonization and yellowing of extruded material strips, characterized in that, The device includes a head (1), a mold head (2), a guide groove (4), a water channel (11), a brush (12), a connecting rod (13), a slider (14), a guide rail (15), and a base (16). The mold head (2) is located on the inclined surface of the head (1) and is in close contact with the head (1). The guide groove (4) is located on one side of the mold head (2). The guide groove (4) has an obtuse angle structure and is symmetrical with the center line of the mold hole. The base (16) is fixedly connected to the head (1) and is located on the lower side of the mold head (2). The bottom of the guide rail (15) is fixedly connected to the base (16) and is parallel to the end face of the mold head (2). The slider (14) is slidably connected to the guide rail (15). The side of the slider (14) is fixedly connected to the connecting rod (13). The other end of the connecting rod (13) is fixedly connected to the brush (12). The brush (12) is in close contact with the mold head (2) during washing.

2. The extrusion apparatus for solving the problem of carbonization and yellowing of material strips according to claim 1, characterized in that, It also includes a first water pump (5), a first water tank (6), a second water pump (7), and a second water tank (8); one end of the first water pump (5) is fixedly connected to the machine head (1), and the other end is fixedly connected to the first water tank (6); one end of the second water pump (7) is fixedly connected to the machine head (1), and the other end is fixedly connected to the second water tank (8); the first water pump (5), the first water tank (6), the second water pump (7), and the second water tank (8) are located at the bottom of the machine head (1).

3. The extrusion apparatus for solving the problem of carbonization and yellowing of the extrusion strip according to claim 1, characterized in that, It also includes a die head hole (3); the die head hole (3) is located in the middle of the die head (2) and communicates with the guide groove (4), and the axis of the die head hole (3) is located on the same straight line.

4. The extrusion apparatus for solving the problem of carbonization and yellowing of the extrusion strip according to claim 1, characterized in that, It also includes a PLC (9) and a temperature sensor (10); the PLC (9) and the temperature sensor (10) are located on the top of the machine head (1), one end of the PLC (9) is fixedly connected to the temperature sensor (10), and the other end of the PLC (9) is fixedly connected to the machine head (1).

5. The extrusion apparatus for solving the problem of carbonization and yellowing of material strips according to claim 1, characterized in that, It also includes a first bracket (17), a second bracket (18), a slide rod (19), a first connecting rod (20), a second connecting rod (21), a collar (24), a third connecting rod (22), and a fourth connecting rod (23). The first bracket (17) is vertically fixedly connected to the brush (12), the second bracket (18) is vertically fixedly connected to the first bracket (17), and the slide rod (19) is movably connected to the second bracket (18). The slide rod (19) is parallel to the axis of the mold head hole (3). The first connecting rod... (20) and the fourth link (23) are both hinged to the collar (24). The collar (24) is sleeved on the slide rod (19) and slidably connected to the slide rod (19). The other end of the second link (21) and the third link (22) is provided with a brush. One end of the second link (21) is hinged to the slide rod (19). The middle of the second link (21) is hinged to the first link (20). The third link (22) is symmetrically arranged with the second link (21). The fourth link (23) is symmetrically arranged with the first link (20).

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