PPS composite raw material mixing device with impurity removal structure

Abstract

The utility model provides a PPS composite raw material mixing device with an impurity removal structure, which comprises a mixing device main body, a screening plate and a negative pressure box, a feeding barrel is arranged on the left side of the mixing device main body, an impurity removal box is arranged at the top of the feeding barrel, and a feeding hopper is arranged at the top of the impurity removal box. Compared with the prior art, the material screening device has the advantages that the pressing rod and the vibrating spring are arranged, the vibrating spring repeatedly rebounds the pressing rod, vibration of the material screening plate is achieved, and therefore large-particle impurities are screened out, the material blocking plate, the dust suction pipe and the negative pressure box are arranged, the material blocking plate can prevent raw material solid particles from being sucked into the dust suction pipe, and the dust suction effect is improved. And dust in the raw material solid particles is sucked into the negative pressure box through the dust suction pipe, so that dust impurities suspended in the raw material solid particles can be removed, the purity of the raw material solid particles before entering the feeding barrel is ensured, the impurity content in the raw material in a molten state is reduced, and the extrusion quality of the raw material is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mixing device, especially relate to a PPS composite raw material mixing device with impurity removal structure. BACKGROUND

[0002] PPS (polyphenylene sulfide) composite raw material mixing device is used for effectively mixing PPS resin with various additives, fillers and reinforcing materials, and in the PPS composite raw material mixing process, the existence of impurities not only can affect the strength, toughness and thermal stability of the material, but also can cause processing difficulties, unstable product quality and other problems. Therefore, the impurity removal structure is arranged in the mixing device to remove the impurities that can affect the product quality, such as dust, stones and other non-target substances as early as possible before the raw material mixing, so that pure and uniform mixed material is obtained, and the conventional method of removing impurities is to arrange a plurality of screen meshes at the perforated plate when the raw material is extruded, and the molten raw material is filtered in advance before being extruded, and the method has the advantages that the extrusion process and impurity removal can be combined to ensure the purity of the extruded raw material, but the disadvantages are that the internal impurities of the raw material solid particles cannot be removed before entering the feeding cylinder, the internal impurity content of the raw material in the molten state cannot be effectively reduced, and the filtering burden before the raw material extrusion is increased, so that the raw material is more prone to congestion and thus causes the problem of poor extrusion of the equipment, and therefore a new structure is provided to solve the above problems. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a PPS composite raw material mixing device with an impurity removal structure.

[0004] The utility model discloses a PPS composite raw material mixing device with an impurity removal structure, which comprises a mixing device main body, a screening plate and a negative pressure box.

[0005] The inside upper portion of the impurity removal box is provided with a filtering cavity, the inside lower portion of the filtering cavity is glued with a check ring, the top of the check ring is provided with four groups of fixed cylinders, the inside of the fixed cylinder is provided with a vibration spring, the upper portion of the vibration spring is provided with a pressing rod, and the bottom of the pressing rod is provided with a limiting plate.

[0006] The top of the pressing rod is provided with a positioning fixed magnet one, the upper portion of the check ring is provided with a screening plate, the center of the screening plate is provided with a screen mesh, the bottom of the screening plate is provided with four groups of positioning fixed magnets two, the lower portion of the filtering cavity is provided with a dust suction cavity, the rear side of the dust suction cavity is provided with a blocking plate, the rear side of the blocking plate is connected with a dust suction pipe in a penetrating mode, and the rear side of the dust suction pipe is connected with the front side of the negative pressure box in a penetrating mode.

[0007] As a preferred implementation, the bottom of the feeding hopper is connected to the top of the filter cavity, the inner wall of the filter cavity is glued to the outer side of the check ring, the length and width of the inner side of the check ring are greater than the length and width of the sieve plate, the central part of the check ring is provided with an electromagnetic vibrator, the electromagnetic vibrator serves to drive the sieve plate to vibrate, the length and width of the inner side of the check ring are greater than the length and width of the sieve plate, preventing the check ring from hindering the falling of the raw material solid particles through the sieve plate, the check ring also serves to support the sieve plate, and the four groups of vibration springs inside the four groups of fixed cylinders at the top of the check ring serve to assist in vibration.

[0008] As a preferred implementation, the radius length of the through part at the top of the fixed cylinder is greater than the radius length of the pressing rod and less than the radius length of the limiting plate, the limiting plate is inside the fixed cylinder, the bottom of the limiting plate is in contact with the top of the vibration spring, the elastic force of the four groups of vibration springs is greater than the gravity of the sieve plate, preventing the four groups of vibration springs from failing to rebound normally due to the excessive weight of the sieve plate, so that the effect of repeatedly vibrating the sieve plate cannot be achieved.

[0009] As a preferred implementation, the top of the pressing rod is provided with a groove, the inner side of the groove is glued to the outer side of the positioning fixed magnet one, and the top height of the positioning fixed magnet one is greater than the height of the top of the groove.

[0010] As a preferred implementation, the positioning fixed magnet one and the positioning fixed magnet two are both neodymium iron boron magnets, the four groups of positioning fixed magnet two are respectively embedded and installed at the four corners of the bottom of the sieve plate, the four groups of positioning fixed magnet two are respectively corresponding to the four groups of positioning fixed magnet one and are opposite in polarity, so that the four groups of positioning fixed magnet one can be fixed by mutual adsorption with the four groups of positioning fixed magnet two, thereby determining the position of the sieve plate and connecting and fixing the four groups of pressing rods, and facilitating the disassembly and assembly of the sieve plate at any time.

[0011] As a preferred implementation, the mesh diameter of the sieve plate is equal to 1.5 times the diameter of the raw material solid particles, the right side of the filter cavity is provided with a socket, the length, width and height of the socket match the length, width and height of the sieve plate, the right side of the sieve plate is provided with a handle, the diameter of the raw material solid particles is smaller than the diameter of the large particle impurities, and the diameter of the large particle impurities is greater than the diameter of the mesh of the sieve plate, so that the large particle impurities can be blocked on the top of the sieve plate by the sieve plate.

[0012] As a preferred embodiment, the front of the material blocking plate is provided with a plurality of groups of material blocking holes, the radius length of the material blocking holes is half of the radius length of the solid raw material particles, and the negative pressure fan is installed in the negative pressure box opposite to the position where the dust suction pipe penetrates the negative pressure box.

[0013] After the above technical scheme is adopted, the beneficial effects of the present application are as follows: the positioning and fixing magnets one, the positioning and fixing magnets two, the pressing rod and the vibration spring are arranged, the four groups of positioning and fixing magnets one are respectively adsorbed and fixed with the four groups of positioning and fixing magnets two, the sieve plate can be conveniently disassembled and assembled at any time, the sieve plate is repeatedly vibrated through the repeated rebound of the vibration spring on the pressing rod, thereby the large-particle impurities contained in the solid raw material particles are screened out and stay on the top of the sieve screen, then the sieve plate is taken out from the insertion opening by pulling the handle, the large-particle impurities on the top of the sieve screen are removed, the material blocking plate, the dust suction pipe and the negative pressure box are arranged, the material blocking plate can prevent the solid raw material particles from being sucked into the dust suction pipe, the dust in the solid raw material particles is sucked into the negative pressure box through the dust suction pipe, thereby the suspended dust impurities in the solid raw material particles are removed, the purity of the solid raw material particles before entering the feeding cylinder is ensured, the impurity content in the raw material in the molten state is reduced, and the quality of the extruded raw material is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0015] Figure 1 It is a schematic view of the PPS composite raw material mixing device with the impurity removing structure of the present application.

[0016] Figure 2 It is a schematic view of the PPS composite raw material mixing device with the impurity removing structure of the present application.

[0017] Figure 3 It is a schematic view of the PPS composite raw material mixing device with the impurity removing structure of the present application.

[0018] Figure 4 It is a schematic view of the PPS composite raw material mixing device with the impurity removing structure of the present application.

[0019] In the figure, 100 - mixing device main body, 110 - inlet hopper;

[0020] 200 - impurity removal box, 210 - baffle ring, 211 - fixed cylinder, 212 - vibration spring, 213 - pressing rod, 214 - limiting plate, 215 - first positioning fixed magnet, 220 - screening plate, 221 - screen, 222 - second positioning fixed magnet, 230 - material blocking plate;

[0021] 300 - negative pressure box, 310 - negative pressure fan, 320 - dust suction pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1 to 4 The PPS composite raw material mixing device with the impurity removal structure comprises a mixing device main body 100, a screening plate 220 and a negative pressure box 300.

[0024] The upper part of the inside of the impurity removal box 200 is provided with a filtering cavity, the lower part of the inside of the filtering cavity is bonded with a baffle ring 210, the top of the baffle ring 210 is provided with four groups of fixed cylinders 211 at four corners, the inside of the fixed cylinders 211 is provided with vibration springs 212, the upper part of the vibration springs 212 is provided with pressing rods 213, and the bottom of the pressing rods 213 is provided with limiting plates 214.

[0025] The top of the pressing rod 213 is provided with a first positioning fixed magnet 215, the upper part of the baffle ring 210 is provided with the screening plate 220, the central part of the screening plate 220 is provided with a screen 221, the bottom of the screening plate 220 is provided with four groups of second positioning fixed magnets 222 at four corners, the lower part of the filtering cavity is provided with a dust suction cavity, the rear side of the dust suction cavity is provided with a material blocking plate 230, the rear side of the material blocking plate 230 is connected with a dust suction pipe 320 in a penetrating manner, and the rear side of the dust suction pipe 320 is connected with the front side of a negative pressure box 300 in a penetrating manner.

[0026] The bottom of the feeding hopper 110 is connected with the top of the filtering cavity in a through manner, the inner wall of the filtering cavity is glued and fixed with the outer side of the baffle ring 210, the length and width of the inner side of the baffle ring 210 are greater than the length and width of the sieve plate 220, the baffle ring 210 is provided with an electromagnetic vibrator at the center, the electromagnetic vibrator drives the sieve plate 220 to vibrate, the length and width of the inner side of the baffle ring 210 are greater than the length and width of the sieve plate, so that the baffle ring 210 prevents the raw material solid particles falling through the sieve plate 220 from falling down continuously, and the baffle ring 210 supports the sieve plate 220, and four groups of vibration springs 212 provided in the four groups of fixed cylinders 211 at the top of the baffle ring 210 play a supplementary vibration role.

[0027] The radius length of the through part at the top of the fixed cylinder 211 is greater than the radius length of the pressing rod 213 and less than the radius length of the limiting plate 214, the limiting plate 214 is inside the fixed cylinder 211, the bottom of the limiting plate 214 is in contact with the top of the vibration spring 212, the elastic force of the four groups of vibration springs 212 is greater than the gravity of the sieve plate 220, so that the four groups of vibration springs 212 can normally rebound due to the excessive weight of the sieve plate 220, thereby achieving the effect of repeatedly vibrating the sieve plate 220.

[0028] The pressing rod 213 is provided with a groove at the top, the inner side of the groove is glued and fixed with the outer side of the positioning fixed magnet 1 215, and the top height of the positioning fixed magnet 1 215 is greater than the height of the top of the groove.

[0029] The positioning fixed magnet 1 215 and the positioning fixed magnet 2 222 are both neodymium iron boron magnets, the four groups of positioning fixed magnets 2 222 are respectively embedded and installed at the four corners of the bottom of the sieve plate 220, the four groups of positioning fixed magnets 2 222 are respectively corresponding to the four groups of positioning fixed magnets 1 215 and are opposite in polarity, so that the four groups of positioning fixed magnets 1 215 can be mutually adsorbed and fixed with the four groups of positioning fixed magnets 2 222, thereby determining the position of the sieve plate 220 and connecting and fixing the sieve plate 220 with the four groups of pressing rods 213, and facilitating the disassembly and assembly of the sieve plate 220 at any time.

[0030] The mesh diameter of the sieve plate 221 is equal to 1.5 times the diameter of the raw material solid particles, the right side of the filtering cavity is provided with a socket in a through manner, the length, width and height of the socket match the length, width and height of the sieve plate 220, the right side of the sieve plate 220 is provided with a handle, the diameter of the raw material solid particles is smaller than the diameter of the large particle impurities, and the diameter of the large particle impurities is greater than the diameter of the mesh of the sieve plate 221, so that the large particle impurities can be blocked on the top of the sieve plate 221.

[0031] The front of the material blocking plate 230 is provided with a plurality of groups of material blocking holes, the radius length of the material blocking hole is half of the radius length of the raw material solid particles, the negative pressure box 300 is internally provided with a negative pressure fan 310, the negative pressure fan 310 is installed at a position opposite to the through portion of the dust suction pipe 320 and the negative pressure box 300, the material blocking plate 230 prevents the raw material solid particles from entering the inside of the dust suction pipe 320 to cause the dust suction pipe 320 to be blocked, on the other hand, the impurities suspended in the dust suction cavity can be sucked into the inside of the negative pressure box 300 through the dust suction pipe 320, thereby improving the purity of the raw material solid particles.

[0032] Embodiment 1: please refer to Figures 1 to 4 In actual use, first pick up the sieve plate 220, place the side provided with four groups of positioning and fixing magnets two 222 downward, then insert the sieve plate 220 into the filter cavity through the left insertion opening, in the process of insertion, the four groups of positioning and fixing magnets two 222 at the four corners of the bottom of the sieve plate 220 are respectively adsorbed and fixed with the four groups of positioning and fixing magnets one 215, at this time, the sieve plate 220 is completely inserted above the blocking ring 210, and the bottom center of the sieve plate is in contact with the top of the electromagnetic vibrator (the electromagnetic vibrator is prior art, the model can be selected according to the existing model on the market, and details are not repeated), after the installation of the sieve plate 220 is completed, when the raw material solid particles fall into the filter cavity through the hopper 110, the electromagnetic vibrator is started, the electromagnetic vibrator drives the sieve plate to move up and down, so that the sieve plate 220 extrudes the four groups of pressure rods 213 downward, and the four groups of pressure rods 213 extrude the four groups of vibration springs 212 in the four groups of fixed cylinders 211 downward, the vibration springs 212 rebound quickly after being extruded, assist the four groups of pressure rods 213 to be lifted upward, and drive the sieve plate 220 to move upward, when the pressure rod 213 moves upward to the position where the limiting plate 214 and the top opening of the fixed cylinder 211 below touch each other, at this time, the pressure rod 213 is limited by the limiting plate 214 and can no longer move upward, at this time, the sieve plate 220 continues to extrude the four groups of pressure rods 213 downward and extrudes the four groups of vibration springs 212 downward through the four groups of pressure rods 213 due to the impact of the raw material solid particles, so the cycle is repeated, that is, as long as the raw material solid particles fall on the top of the sieve plate 220, the sieve plate 220 vibrates up and down on the top of the blocking ring 210, so that the large particle impurities in the raw material solid particles are blocked on the top of the sieve screen 221, and then the raw material solid particles can be decontaminated, the purity of the raw material solid particles before falling into the barrel is improved, the impurity content in the raw material in the molten state is reduced, and the quality of the raw material extrusion is improved, then the handle can be held to pull out the sieve plate 220 from the insertion opening, and then the large particle impurities on the top of the sieve screen 221 can be removed, which is convenient to use.

[0033] Embodiment 2: please refer to Figure 1 and Figure 2After the raw material solid particles are removed by the screening plate 220, they enter the dust collection cavity, and the negative pressure fan 310 installed in the negative pressure box 300 is started (the negative pressure fan 310 can be selected according to the existing type on the market, and it can meet the requirement of providing a negative pressure environment, and the working principle and structure are prior art, and will not be described in detail). The negative pressure fan 310 rotates to generate a negative pressure environment in the negative pressure box 300, so that the pressure in the negative pressure box 300 is less than the pressure in the dust collection cavity, and then the suspended impurities in the dust collection cavity are sucked into the negative pressure box 300 through the dust collection pipe 320. During this period, the blocking plate 230 can prevent the raw material solid particles from entering the dust collection pipe 320 through the through hole of the dust collection pipe 320 and the dust collection cavity to cause blockage of the dust collection pipe 320, allow the suspended impurities to enter the dust collection pipe 320 through the blocking hole, and finally enter the negative pressure box 300, so as to remove the small suspended impurities in the raw material solid particles, improve the purity of the raw material solid particles before entering the feeding cylinder, and then improve the purity of the raw material in the molten state, and finally improve the quality of the raw material extrusion.

[0034] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A PPS composite raw material mixing device with an impurity removal structure, comprising: The mixing device body (100), the sieve plate (220) and the negative pressure box (300) are characterized in that: the mixing device body (100) is provided with a feed cylinder on the left side, the feed cylinder is provided with a cleaning box (200) at the top, and the cleaning box (200) is provided with a feed hopper (110) at the top; The upper part of the impurity removal box (200) is provided with a filter chamber, and a retaining ring (210) is glued to the lower part of the filter chamber. Four sets of fixing cylinders (211) are provided at the four corners of the top of the retaining ring (210). A vibration spring (212) is provided inside the fixing cylinder (211). A pressure rod (213) is provided above the vibration spring (212). A limiting plate (214) is provided at the bottom of the pressure rod (213). The pressure rod (213) is provided with a positioning and fixing magnet (215) at the top, a sieve plate (220) is provided above the retaining ring (210), a sieve screen (221) is provided in the center of the sieve plate (220), four sets of positioning and fixing magnets (222) are provided at the four corners of the bottom of the sieve plate (220), a dust suction chamber is provided below the filter chamber, a baffle plate (230) is provided on the rear side of the dust suction chamber, the rear side of the baffle plate (230) is connected to the dust suction pipe (320), and the rear side of the dust suction pipe (320) is connected to the front of the negative pressure box (300).

2. The PPS composite raw material mixing device with a purification structure as described in claim 1, characterized in that: The bottom of the feed hopper (110) is connected to the top of the filter chamber. The inner wall of the filter chamber is glued to the outer side of the retaining ring (210). The length and width of the inner side of the retaining ring (210) are greater than the length and width of the screen (221). An electromagnetic vibrator is provided in the center of the retaining ring (210).

3. The PPS composite raw material mixing device with a purification structure as described in claim 1, characterized in that: The radius of the top through-hole of the fixed cylinder (211) is greater than the radius of the pressure rod (213) and less than the radius of the limiting plate (214). The limiting plate (214) is inside the fixed cylinder (211). The bottom of the limiting plate (214) is in contact with the top of the vibration spring (212). The elastic force of the four sets of vibration springs (212) is greater than the weight of the screen plate (220).

4. The PPS composite raw material mixing device with a purification structure as described in claim 3, characterized in that: The top of the pressure rod (213) is provided with a groove, the inner side of the groove is glued to the outer side of the positioning and fixing magnet (215), and the top height of the positioning and fixing magnet (215) is greater than the top height of the groove.

5. The PPS composite raw material mixing device with a purification structure as described in claim 4, characterized in that: The positioning and fixing magnet one (215) and positioning and fixing magnet two (222) are both neodymium iron boron magnets. The four sets of positioning and fixing magnet two (222) are respectively embedded in the four corners of the bottom of the screen plate (220). The four sets of positioning and fixing magnet two (222) correspond one-to-one with the positions of the four sets of positioning and fixing magnet one (215) and their opposite poles are opposite.

6. The PPS composite raw material mixing device with a purification structure as described in claim 1, characterized in that: The mesh diameter of the screen (221) is equal to 1.5 times the diameter of the raw material solid particles. The right side of the filter chamber is provided with an insertion port. The length, width and height of the insertion port are matched with the length, width and height of the screen plate (220). The right side of the screen plate (220) is provided with a handle.

7. The PPS composite raw material mixing device with a purification structure as described in claim 2, characterized in that: The baffle plate (230) has several sets of baffle holes through its front side. The radius of the baffle holes is half the radius of the raw material solid particles. A negative pressure fan (310) is installed inside the negative pressure box (300). The negative pressure fan (310) is installed at the position opposite to the connection between the dust suction pipe (320) and the negative pressure box (300).

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