A reinforced plastic granule rolling production device

Abstract

The present invention relates to the technical field of plastic particle production, and in particular provides a reinforced plastic particle rolling production device, comprising: a base, on which a bracket is arranged; a roller, which is horizontally arranged on the bracket along its axis, and the roller rotates relative to the bracket; an outer cylinder, which is rotatably sleeved on the outer circumference of the roller, and the rotation speed of the outer cylinder is lower than the rotation speed of the roller; a plurality of axially arranged rolling grooves are arranged on the inner wall surface of the outer cylinder, and the groove bottom of the rolling groove is arc-shaped; an injection mechanism is arranged on the base, located at one end of the roller, and is used to inject raw materials into the end adjacent to the rolling groove; a first spiral guide bar is arranged between the roller and the outer cylinder; the first spiral guide bar is arranged around the roller and fixedly connected to the bracket; wherein the first spiral guide bar is configured to guide the raw materials in the rolling groove to move to the end away from the injection mechanism. The scheme of the present invention lengthens the rolling path, so that the raw materials are rolled more fully and comprehensively, and the bonding tightness of the reinforced plastic particles is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic particle production, in particular to a reinforced plastic particle rolling production device. Background Art

[0002] Reinforced plastic particles generally contain fiber materials and plastic materials. The fiber bundles and plastic particles are tightly combined together, and the reinforcing effect of the fiber bundles is utilized to improve the overall performance of the reinforced plastic particles (such as tensile strength, rigidity, creep resistance, fatigue resistance and other properties).

[0003] There are usually two methods for producing reinforced plastic particles. One is to use extrusion and cutting technology to mix fiber bundles and plastic particles together and continuously extrude them, and then form reinforced plastic particles by cutting. However, the cutting process will destroy the fiber bundles in the reinforced plastic particles and affect the material properties. The other is to use rolling technology to roll the mixed fiber bundles and plastic particles so that the limiting bundles and plastic particles are combined to form reinforced plastic particles. For example, a production method of a long fiber reinforced plastic particle rolling production device disclosed in patent CN110450306A uses the cooperation of an outer rolling cylinder and a bottom plate to roll the raw materials so that the raw materials adapt to the shape of the rolling rubber sleeve on the outer rolling cylinder to form columnar reinforced plastic particles. Obviously, although the existing rolling production technology can reduce the damage to the fiber bundle, the effective rolling process is short, the fiber bundles and plastic particles in the produced reinforced plastic particles have poor tightness, and there are often large gaps between the plastic particles, which seriously affects the overall performance of the reinforced plastic particles. Summary of the invention

[0004] One object of the present invention is to improve the bonding tightness of the internal materials of reinforced plastic particles, thereby improving the overall performance of the reinforced plastic particles.

[0005] Another object of the present invention is to improve the production efficiency and production quality of reinforced plastic particles.

[0006] In particular, the present invention provides a reinforced plastic particle rolling production device, comprising: a base, on which a bracket is arranged; a roller, which is horizontally arranged on the bracket along its axis and rotates relative to the bracket; an outer cylinder, which is rotatably sleeved on the outer circumference of the roller, and the rotation speed of the outer cylinder is lower than the rotation speed of the roller; a plurality of axially arranged rolling grooves are arranged on the inner wall surface of the outer cylinder, and the groove bottom of the rolling groove is arc-shaped; a material injection mechanism is arranged on the base, located at one end of the roller, and is used to inject raw materials into the end adjacent to the rolling groove; a first spiral guide bar is arranged between the roller and the outer cylinder; the first spiral guide bar is arranged between the roller and the outer cylinder; The guide bar is wound around the roller and fixedly connected to the bracket; wherein the first spiral guide bar is configured to guide the raw material in the rolling groove to move toward the end away from the injection mechanism; the rolling groove, starting from the end close to the injection mechanism, includes a first section, a second section and a third section connected in sequence; wherein the curvature radius of the groove bottom of the second section gradually decreases from the end close to the injection mechanism to the other end; the curvature radius of the groove bottom of the first section remains unchanged and is equal to the maximum curvature radius of the groove bottom of the second section; the curvature radius of the groove bottom of the third section remains unchanged and is equal to the minimum curvature radius of the groove bottom of the second section.

[0007] Furthermore, the radial distance from the notch of the first section close to the injection mechanism to the side wall of the roller is smaller than the minimum size of the raw material in the rolling groove.

[0008] Furthermore, the reinforced plastic particle rolling production device also includes: a second spiral guide bar, which is arranged on the outer circumference of the roller and is opposite to the part of the first section close to the injection mechanism, and is used to guide the raw material in the first section to move to the second section; wherein, one end of the second spiral guide bar away from the injection mechanism is connected to the end of the first spiral guide bar close to the injection mechanism.

[0009] Furthermore, the pitch of the second helical guide bar is equal to the pitch of the first helical guide bar.

[0010] Furthermore, the radial distance between the notch of the second section and the side wall surface of the roller gradually decreases from one end close to the injection mechanism to the other end.

[0011] Furthermore, a chamfer is formed on the side wall surface of the first spiral guide bar close to the outer cylinder at an end away from the injection mechanism.

[0012] Furthermore, one end of the first spiral guide bar away from the injection mechanism partially extends out of the outer cylinder.

[0013] Furthermore, the reinforced plastic granule rolling production device also includes: a material receiving device, which is arranged on the base and is located below the portion of the first spiral guide bar extending out of the outer cylinder.

[0014] The beneficial effects of the present invention are:

[0015] The reinforced plastic particle rolling production device of the present invention is provided with an outer cylinder with a rotation speed lower than that of the roller sleeved on the outer periphery of the roller, and a plurality of axially arranged rolling grooves are provided on the inner wall surface of the outer cylinder, and the relative movement between the outer cylinder and the roller is used to drive the raw material to roll along the bottom of the arc groove in the rolling groove, so that the raw material is compressed into a columnar shape. By providing a first spiral guide bar, the raw material moves along the rolling groove from one end close to the injection mechanism to the other end while being rolled. The rolling path of the raw material is lengthened, so that the raw material is rolled more fully and comprehensively, thereby improving the tightness of the internal material of the reinforced plastic particles, and further improving the overall performance of the reinforced plastic particles. In addition, the multiple rolling grooves provided on the inner wall surface of the outer cylinder work simultaneously, thereby improving the production efficiency of the reinforced plastic particles;

[0016] Furthermore, in the reinforced plastic particle rolling production device of the present invention, the curvature radius of the groove bottom of a part of the rolling groove is set to gradually decrease from one end close to the injection mechanism to the other end, so that when the raw material moves from one end close to the injection mechanism to the other end in the rolling groove, it is compressed into a truncated cone shape under the rolling pressure of the gradually decreasing groove bottom, so that the internal materials are more tightly combined, thereby improving the overall performance of the reinforced plastic particles;

[0017] Furthermore, the reinforced plastic particle rolling production device of the present invention is provided with a third section with an unchanged groove bottom after the second section with a gradually contracting groove bottom, and the truncated cone-shaped raw material formed by the second section is further rolled into a columnar shape, thereby further improving the bonding tightness of the internal materials of the reinforced plastic particles and making the shape of the reinforced plastic particles more regular, thereby improving the production quality of the reinforced plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts.

[0019] Figure 1 It is a schematic structural diagram of a reinforced plastic particle rolling production device according to an embodiment of the present invention.

[0020] Figure 2 It is a schematic structural diagram of a reinforced plastic particle rolling production device according to another embodiment of the present invention; wherein structures such as the base are omitted.

[0021] Figure 3 It is a schematic cross-sectional view of a reinforced plastic particle rolling production device according to another embodiment of the present invention; wherein structures such as the base are hidden.

[0022] Figure 4 yes Figure 3 Schematic enlargement of area A in the middle.

[0023] Figure 5 is an axonometric cross-sectional view of an outer cylinder according to an embodiment of the present invention.

[0024] Figure 6 Schematic diagram of the structure of a roller according to an embodiment of the present invention.

[0025] Figure 7 1 is a schematic structural diagram of a first spiral guide bar and a second spiral guide bar of a reinforced plastic particle rolling production device according to an embodiment of the present invention.

[0026] Figure 8 yes Figure 7 Schematic enlargement of region B.

[0027] Fig. 9 It is an axonometric cross-sectional view of a first spiral guide bar and a second spiral guide bar of a reinforced plastic particle rolling production device according to an embodiment of the present invention.

[0028] in:

[0029] 100, base; 110, bracket; 120, first power device; 121, belt; 130, second power device; 131, driving wheel; 200, roller; 210, rotating center axis; 220, first step surface; 230, second step surface; 300, outer cylinder; 310, rolling groove; 311, first section; 312, second section; 313, third section; 320, groove; 330, annular belt; 340, annular end cover; 341, feed port; 400, injection mechanism; 410, storage tank; 420, injection nozzle; 421, annular sheet; 500, first spiral guide strip; 510, chamfer; 520, second ring; 600, second spiral guide strip; 610, first ring; 700, collecting device. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The terms "first", "second", etc. herein are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or includes" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0032] Unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be directly connected, or indirectly connected through an intermediate medium. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0033] It should be understood that the orientations or positional relationships indicated by terms such as “horizontal”, “inner”, “outer”, “axial”, and “radial” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They 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 should not be understood as a limitation on the present invention.

[0034] Refer to the following Figures 1 to 9 To describe a reinforced plastic particle rolling production device provided by the present invention.

[0035] This embodiment provides a reinforced plastic granule rolling production device. The reinforced plastic granule rolling production device generally may include: a base 100 , a roller 200 , an outer cylinder 300 , a material injection mechanism 400 , and a first spiral guide bar 500 .

[0036] A support 110 is provided on the base 100. The roller 200 is horizontally provided on the support 110 along its axis, and the roller 200 rotates relative to the support 110. The outer cylinder 300 is rotatably sleeved on the outer circumference of the roller 200, and the rotation speed of the outer cylinder 300 is lower than the rotation speed of the roller 200. A plurality of rolling grooves 310 arranged in the axial direction are provided on the inner wall surface of the outer cylinder 300, and the groove bottom of the rolling groove 310 is in an arc shape. The injection mechanism 400 is provided on the base 100, located at one end of the roller 200, and is used to inject raw materials into the end adjacent to the rolling groove 310. The first spiral guide bar 500 is provided between the roller 200 and the outer cylinder 300. The first spiral guide bar 500 is arranged around the roller 200 and is fixedly connected to the support 110. Among them, the first spiral guide bar 500 is configured to guide the raw materials in the rolling groove 310 to move toward the end away from the injection mechanism 400.

[0037] The scheme of this embodiment is to sleeve an outer cylinder 300 with a rotation speed lower than that of the roller 200 on the outer periphery of the roller 200, and to set a plurality of rolling grooves 310 arranged in the axial direction on the inner wall surface of the outer cylinder 300, and to use the relative movement between the outer cylinder 300 and the roller 200 to drive the raw material to roll along the bottom of the arc groove in the rolling groove 310, so that the raw material is compressed to form a column. By setting the first spiral guide bar 500, the raw material moves from one end close to the injection mechanism 400 to the other end along the rolling groove 310 while being rolled. The rolling path of the raw material is lengthened, so that the rolling of the raw material is more complete and comprehensive, thereby improving the bonding tightness of the internal materials of the reinforced plastic particles, and then improving the overall performance of the reinforced plastic particles. In addition, the multiple rolling grooves 310 arranged on the inner wall surface of the outer cylinder 300 work simultaneously, which not only greatly reduces the volume of the equipment, but also improves the production efficiency of the reinforced plastic particles.

[0038] A plurality of brackets 110 may be provided on the base 100, and a plurality of annular grooves 320 may be provided on the outer wall surface of the outer cylinder 300. Each groove 320 corresponds to a bracket 110, and the shape of the bracket 110 is adapted to the groove 320, so as to support the outer cylinder 300 while ensuring smooth rotation of the outer cylinder 300.

[0039] The roller 200 has a central position at one end thereof facing the injection mechanism 400, and a rotation center shaft 210 protruding outward is formed. The base 100 is provided with a first power device 120, and the first power device 120 is connected to a belt 121, and the belt 121 is sleeved on the rotation center shaft 210, thereby driving the rotation center shaft 210 to rotate, and further driving the roller 200 to rotate.

[0040] An annular belt 330 protruding outward is formed on the outer wall surface of the outer cylinder 300. A second power device 130 is provided on the base 100, and a driving wheel 131 of the second power device 130 contacts the annular belt 330. Preferably, the driving wheel 131 and the annular belt 330 are respectively provided with transmission teeth meshing with each other. The driving wheel 131 drives the annular belt 330 to rotate through gear transmission, thereby driving the outer cylinder 300 to rotate.

[0041] The rotation directions of the roller 200 and the outer cylinder 300 are preferably configured to be opposite to each other, so as to increase the relative rotation speed between the roller 200 and the outer cylinder 300, thereby improving the rolling efficiency.

[0042] like Figure 1As shown, the injection mechanism 400 may generally include a storage tank 410 for placing raw materials, and an injection nozzle 420 for injecting the raw materials in the storage tank 410 into the rolling groove 310. The outer cylinder 300 is formed with an annular end cover 340 at one end close to the injection mechanism 400, and the rolling groove 310 penetrates the annular end cover 340 to form a feed port 341. The size of the injection nozzle 420 is consistent with the feed port 341, and an annular sheet 421 is provided on the injection nozzle 420. The annular sheet 421 abuts against the annular end cover 340 to prevent the raw materials from leaking from the injection nozzle 420 and increasing the loss.

[0043] The rotation speed of the outer cylinder 300 is preferably configured to be relatively low, so that during the rotation of the outer cylinder 300 , when the injection nozzle 420 is opposite to the feed port 341 , the injection mechanism 400 can smoothly inject a certain amount of raw material into the rolling groove 310 .

[0044] In some embodiments, the injection mechanism 400 injects materials at a constant speed, and the injection speed of the injection mechanism 400 is adapted to the rotation speed of the outer cylinder 300. During the rotation of the outer cylinder 300, when the injection nozzle 420 of the injection mechanism 400 is staggered with the feed port 341, the raw materials are accumulated and initially agglomerated in the injection nozzle 420 under the pressure of the annular end cover 340, so that the raw materials can be subsequently rolled in the rolling groove 310, thereby improving the yield rate.

[0045] The radial thickness of the first spiral guide bar 500 is slightly smaller than the radial distance from the notch of the rolling groove 310 to the side wall of the roller 200 to reduce the friction resistance between the roller 200, the outer cylinder 300 and the first spiral guide bar 500 to ensure smooth rotation of the roller 200 and the outer cylinder 300.

[0046] The curvature radius of the groove bottom of a partial section of the rolling groove 310 gradually decreases from one end close to the injection mechanism 400 to the other end.

[0047] In the solution of this embodiment, the curvature radius of the groove bottom of a part of the rolling groove 310 is set to gradually decrease from one end close to the injection mechanism 400 to the other end, so that the part of the rolling groove 310 forms a unique truncated cone structure in the axial direction. When the raw material moves from one end close to the injection mechanism 400 to the other end in the rolling groove 310, it can produce a large amount of compression under the rolling pressure of the gradually decreasing groove bottom, so that it is more tightly combined, further improving the tightness of the internal material of the reinforced plastic particles, and then improving the overall performance of the reinforced plastic particles.

[0048] In some preferred embodiments, the length of the tapered section of the rolling groove 310 may account for half or more of the total length of the rolling groove 310, to ensure that the rolling groove 310 can provide sufficient compression to the raw material, so that the internal materials of the reinforced plastic particles are combined tightly enough, thereby ensuring the overall performance of the reinforced plastic particles.

[0049] like Figure 5 As shown, in some embodiments, the rolling groove 310 includes a first section 311, a second section 312, and a third section 313 connected in sequence from one end close to the injection mechanism 400. The curvature radius of the groove bottom of the first section 311 and the third section 313 remains unchanged. The curvature radius of the groove bottom of the second section 312 gradually decreases from one end close to the injection mechanism 400 to the other end.

[0050] It can be understood that the curvature radius of the groove bottom of the first section 311 remains unchanged, and the curvature radius of the groove bottom of the first section 311 is equal to the maximum curvature radius of the groove bottom of the second section 312 (i.e., the curvature radius of the groove bottom of the second section 312 at one end close to the injection mechanism 400). The curvature radius of the groove bottom of the third section 313 remains unchanged, and the minimum curvature radius of the groove bottom of the second section 312 (i.e., the curvature radius of the groove bottom of the second section 312 at one end away from the injection mechanism 400) is equal to the curvature radius of the groove bottom of the third section 313.

[0051] In the solution of this embodiment, the curvature radius of the groove bottom of the first section 311 close to the injection mechanism 400 is set to be unchanged, so that the raw material injected into the rolling groove 310 can be rolled from a loose and irregular state into a basic cylindrical shape under the rolling of the first section 311 and the roller 200, thereby improving the yield rate. The curvature radius of the groove bottom of the second section 312 is gradually reduced, so that after the raw material moves from the first section 311 to the second section 312, it is compressed from a cylinder to a truncated cone under the rolling of the second section 312 and the roller 200, thereby improving the bonding tightness of the internal materials and improving the overall performance. The curvature radius of the groove bottom of the third section 313 is unchanged, so that after the raw material moves from the second section 312 to the third section 313, it is compressed again under the rolling of the third section 313 and the roller 200, and changes from a truncated cone back to a cylinder, further improving the bonding tightness of the internal materials and making the shape of the reinforced plastic particles more regular. In addition, the third section 313 is used to cool and shape the raw materials, further improving the quality of the finished reinforced plastic particles. The radius of curvature of the groove bottom of the third section 313 is determined according to the radius of the reinforced plastic particles to be produced.

[0052] In other embodiments, the rolling groove 310 may include multiple sections with gradually shrinking groove bottoms and multiple sections with unchanged groove bottoms. The sections with gradually shrinking groove bottoms and the sections with unchanged groove bottoms may be arranged at intervals, so that the raw materials are repeatedly compressed between the changes in the shape of cylinder-truncated cone-cylinder, thereby improving the overall performance and production quality of the reinforced plastic particles.

[0053] The radial distance from the notch of the first section 311 close to the injection mechanism 400 to the side wall of the roller 200 is smaller than the minimum size of the raw material in the rolling groove 310 .

[0054] The solution of this embodiment specifically sets the radial distance from the notch of the first section 311 close to the injection mechanism 400 to the roller 200 to be extremely small, thereby preventing the raw material from being injected into the rolling groove 310 and leaking from the gap between the outer cylinder 300 and the roller 200 in a loose state before being rolled.

[0055] The reinforced plastic granule rolling production device may generally further include a second spiral guide bar 600 .

[0056] The second spiral guide bar 600 is disposed on the outer periphery of the roller 200 and is opposite to the portion of the first section 311 close to the injection mechanism 400, and is used to guide the raw material in the first section 311 to move toward the second section 312. The end of the second spiral guide bar 600 away from the injection mechanism 400 is connected to the end of the first spiral guide bar 500 close to the injection mechanism 400.

[0057] In the solution of this embodiment, a second spiral guide bar 600 is arranged between the roller 200 and the outer cylinder 300, which is opposite to the portion of the first section 311 close to the injection mechanism 400, so that when the raw material is rolled in the first section 311, it can move to the second section 312 under the guidance of the second spiral guide bar 600. The end of the second spiral guide bar 600 is connected to the head end of the first spiral guide bar 500, so that the raw material can smoothly move from the first section 311 to the second section 312 under the guidance of the second spiral guide bar 600 and the second spiral guide bar 600.

[0058] like Figure 4 As shown, the radial distance between the notch of the first section 311 away from the injection mechanism 400 and the side wall of the roller 200 is increased to make way for the first spiral guide bar 500 so that the second spiral guide bar 600 can be smoothly connected to the first spiral guide bar 500 .

[0059] In some embodiments, a first step surface 220 of a sunken annular shape is formed at one end of the roller 200 facing the injection mechanism 400. A first sleeve 610 is fixedly connected to the inner side of the second spiral guide bar 600. The first sleeve 610 is sleeved on the sunken first step surface 220 of the roller 200, and the side wall surface of the first sleeve 610 is flush with the side wall surface of the roller 200.

[0060] The length of the reinforced plastic particles produced by the reinforced plastic particle rolling production device is equal to the pitch of the first spiral guide bar 500 .

[0061] The pitch of the second helical bar 600 is equal to the pitch of the first helical bar 500 .

[0062] In the solution of this embodiment, the pitch of the second spiral guide bar 600 is set to be equal to the pitch of the first spiral guide bar 500, so that the size of the raw material conveyed by the second spiral guide bar 600 to the second section 312 meets the pitch requirement of the first spiral guide bar 500, thereby improving the production quality and production efficiency of the reinforced plastic particles.

[0063] The radial distance between the notch of the second section 312 and the side wall surface of the roller 200 gradually decreases from one end close to the injection mechanism 400 to the other end.

[0064] As the radius of curvature of the groove bottom of the second section 312 gradually decreases, the radius of the column formed by the raw material after rolling decreases accordingly. In order to ensure that the side wall surface of the roller 200 can always drive the raw material to roll along the curvature of the groove bottom of the rolling groove 310, the scheme of this embodiment sets the radial distance between the groove opening of the second section 312 and the side wall surface of the roller 200 to be gradually reduced, so that the radial distance between the groove opening of the second section 312 and the side wall surface of the roller 200 is adapted to the radius of curvature of the groove bottom, ensuring the effective contact area between the raw material and the groove bottom of the rolling groove 310, thereby ensuring the rolling effect.

[0065] In some embodiments, the radial distance from the groove opening of the second section 312 to the side wall surface of the roller 200 is always one half of the radial distance from the groove bottom to the roller 200 .

[0066] A chamfer 510 is formed on the side wall surface of the first spiral guide bar 500 close to the outer cylinder 300 at one end away from the injection mechanism 400 .

[0067] When the raw material moves along the rolling groove 310 under the push of the first spiral guide bar 500, the end face of the raw material facing the injection mechanism 400 is squeezed into a slope because the end face of the first spiral guide bar 500 is a spiral slope. During the rolling process of the raw material, the protruding part of its inclined end face is easily cut by the end face of the first spiral guide bar 500. The scheme of this embodiment, by setting a chamfer 510 on the first spiral guide bar 500, the inclined end face of the raw material can be squeezed along the chamfer 510 when the raw material rolls, reducing the loss rate of the raw material, thereby improving the production quality of reinforced plastic particles.

[0068] One end of the first spiral guide bar 500 away from the injection mechanism 400 partially extends out of the outer cylinder 300 .

[0069] In the solution of this embodiment, one end of the first spiral guide bar 500 away from the injection mechanism 400 is partially extended out of the outer cylinder 300, so that the raw material can be smoothly separated from the outer cylinder 300 under the drive of the first spiral guide bar 500.

[0070] In some embodiments, a sunken annular second step surface 230 is formed at one end of the roller 200 away from the injection mechanism 400, and a second sleeve 520 is fixedly connected to the inner side of the portion of the first spiral guide bar 500 extending out of the outer cylinder 300, and the second sleeve 520 is fixedly connected to the bracket 110. The second sleeve 520 is sleeved on the second step surface 230, and the side wall surface of the second sleeve 520 is flush with the side wall surface of the roller 200. In some preferred embodiments, the first spiral guide bar 500, the second spiral guide bar 600, the first sleeve 610 and the second sleeve 520 are integrally formed.

[0071] The reinforced plastic granule rolling production device may generally further include a material collecting device 700 .

[0072] The material receiving device 700 is disposed on the base 100 and is located below the portion of the first spiral guide bar 500 extending out of the outer cylinder 300 .

[0073] In the solution of this embodiment, by arranging a material collecting device 700 below the portion of the first spiral guide bar 500 extending out of the outer cylinder 300, the difficulty of collecting the reinforced plastic particles is reduced, thereby improving the overall production efficiency of the reinforced plastic particle rolling production device.

[0074] In some embodiments, the receiving device 700 is configured as a receiving box having a size adapted to the first spiral guide bar 500 .

[0075] The specific working process of the reinforced plastic particle rolling production device provided by the present invention is described in combination with the above embodiments:

[0076] The first power device 120 and the second power device 130 are started, and the outer cylinder 300 and the roller 200 begin to rotate relative to each other. The material injection mechanism 400 is started to inject raw materials into the rolling groove 310 .

[0077] After the raw material enters the rolling groove 310, it is guided by the second spiral guide bar 600 and the first spiral guide bar 500 and passes through the first section 311, the second section 312 and the third section 313 along the rolling groove 310 in sequence before being discharged. The raw material is rolled into a preliminary cylindrical shape in the first section 311 where the curvature radius of the groove bottom remains unchanged. Then it enters the second section 312 where the curvature radius of the groove bottom gradually decreases, and is compressed from a cylindrical shape to a truncated cone shape under the rolling of the second section 312. After that, it enters the third section 313 where the curvature radius of the groove bottom remains unchanged, and is further compressed from a truncated cone shape to a cylindrical shape under the rolling of the third section 313. Finally, it is discharged from the end of the rolling groove 310 away from the injection mechanism 400 and falls into the receiving device 700.

[0078] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A reinforced plastic granule rolling production device, characterized in that: include: A base, on which a bracket is arranged; A roller is horizontally arranged on the support along its axis, and the roller rotates relative to the support; An outer cylinder is rotatably sleeved on the outer circumference of the roller, and the rotation speed of the outer cylinder is lower than the rotation speed of the roller; The inner wall surface of the outer cylinder is provided with a plurality of rolling grooves arranged along the axial direction, and the bottom of the rolling grooves is in an arc shape; A material injection mechanism, arranged on the base, located at one end of the roller, and used for injecting raw materials into the end adjacent to the rolling groove; The first spiral guide bar is arranged between the roller and the outer cylinder; the first spiral guide bar is wound around the roller and fixedly connected to the bracket; wherein, The first spiral guide bar is configured to guide the raw material in the rolling groove to move toward an end away from the injection mechanism; The rolling groove includes a first section, a second section and a third section connected in sequence from one end close to the injection mechanism; wherein, The curvature radius of the groove bottom of the second section gradually decreases from one end close to the injection mechanism to the other end; the curvature radius of the groove bottom of the first section remains unchanged and is equal to the maximum curvature radius of the groove bottom of the second section; the curvature radius of the groove bottom of the third section remains unchanged and is equal to the minimum curvature radius of the groove bottom of the second section.

2. The reinforced plastic particle rolling production device according to claim 1 is characterized in that: The radial distance from the notch of the first section close to the injection mechanism to the side wall surface of the roller is smaller than the minimum size of the raw material in the rolling groove.

3. The reinforced plastic particle rolling production device according to claim 2 is characterized in that: Also includes: The second spiral guide bar is arranged on the outer periphery of the roller and is opposite to the part of the first section close to the injection mechanism, and is used to guide the raw material in the first section to move to the second section; wherein, One end of the second spiral guide bar away from the injection mechanism is connected to one end of the first spiral guide bar close to the injection mechanism.

4. The reinforced plastic granule rolling production device according to claim 3 is characterized in that: The pitch of the second helical guide bar is equal to the pitch of the first helical guide bar.

5. The reinforced plastic particle rolling production device according to claim 1, characterized in that: The radial distance between the notch of the second section and the side wall surface of the roller gradually decreases from one end close to the injection mechanism to the other end.

6. The reinforced plastic particle rolling production device according to claim 1, characterized in that: The first spiral guide bar is formed with a chamfer on the side wall surface close to the outer cylinder at one end away from the injection mechanism.

7. The reinforced plastic particle rolling production device according to claim 1, characterized in that: One end portion of the first spiral guide bar away from the injection mechanism extends out of the outer cylinder.

8. The reinforced plastic granule rolling production device according to claim 7, characterized in that: Also includes: The material collecting device is arranged on the base and is located below the portion of the first spiral guide bar extending out of the outer cylinder.

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