A granulator for preparing a polypropylene composite material

Abstract

The utility model relates to the technical field of granulator, specifically relates to a granulator for polypropylene composite material preparation, including frame, granulator body and screening mechanism, and the screening mechanism includes screening box, connecting arm, cooperation arm, fixed arm, spring, camshaft, driving part and cooperation device, the granulator body exports after making granules to raw materials during processing, then the raw materials fall in the screening box, at this moment, through the driving part action, the camshaft is driven to rotate, and the action cam will make the connecting arm intermittent compression spring in vertical sliding, and the spring switches under the motion trail of action cam in the telescopic and release state, thereby making the screening box can move vertically and form the shaking, then can screen the material, and further can solve the problem that the existing granulator cannot screen the material granules after production, and the inconvenient use problem.

Description

Technical Field

[0001] This utility model relates to the field of granulator technology, specifically to a granulator for preparing polypropylene composite materials. Background Technology

[0002] In the prior art, existing granulators tend to cause the polypropylene composite particles to stick together when granulating them.

[0003] A search revealed that prior art CN213644054U discloses a granulation device for preparing polypropylene composite materials. The granulation device includes: a base; a housing fixedly mounted on top of the base; a feed hopper fixedly mounted on top of the housing, with its bottom extending into the housing; a first motor fixedly mounted on top of the feed hopper; a first rotating rod rotatably mounted inside the feed hopper, its top end extending outside the feed hopper and fixedly connected to the output shaft of the first motor; a helical wheel fixedly mounted on the first rotating rod; a second motor fixedly mounted on one side of the housing; and two second rotating rods rotatably mounted within the housing. This granulation device for preparing polypropylene composite materials provides the advantages of ease of use and the ability to prevent the agglomeration of polypropylene composite material particles.

[0004] However, the above-mentioned equipment has the following problems when in use: the particle size of polypropylene composite material particles is not completely uniform during processing. Therefore, there are uneven particle sizes in the output material. The existing technology cannot screen the particles of the produced material, which is inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to provide a granulator for preparing polypropylene composite materials, so as to solve the problem that existing granulators cannot screen the produced material particles and are inconvenient to use.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a granulator for preparing polypropylene composite materials, including a frame, on which a granulator body is mounted, and a screening mechanism; The screening mechanism includes a screening box, a connecting arm, a mating arm, a fixed arm, a spring, a camshaft, a drive component, and a mating device. The screening box is located below the discharge port of the granulator body and has a screen fixedly installed at the bottom. The connecting arms are symmetrically installed on the screening box. The mating arm is slidably connected to the connecting arm and fixed on the fixed arm, with the spring sleeved on the outer side of its circular shaft. The fixed arm is fixed on the frame, and the top of the spring is welded to the fixed arm. The camshaft is rotatably installed on the frame and has a fixedly installed actuating cam that slides in contact with the connecting arm. The drive component is installed on one side of the frame, and its output end is connected to the camshaft via a coupling. The mating device is located on the screening box.

[0007] Two symmetrically arranged action cams are provided on the camshaft.

[0008] The cooperating device includes a fixing plate and a guiding assembly. The fixing plate is detachably connected to the screening box. The guiding assembly is disposed on the top of the fixing plate.

[0009] The guiding component includes a protective cover and an arc-shaped plate. The protective cover is integrally formed with the fixing plate. The arc-shaped plate is welded and fixed to the protective cover, and after installation, there is a material passage gap between the bottom of the arc-shaped plate and the screen.

[0010] The granulator for preparing polypropylene composite materials further includes a reinforcing mechanism, which includes a first support and a second support. The first support is connected to the frame and the fixed arm respectively and is symmetrically arranged. The second support is connected to the fixed arm and the first support respectively.

[0011] This utility model discloses a granulator for preparing polypropylene composite materials. During processing, the granulator body forms the raw material into granules and then discharges them. The raw material then falls into a screening box. At this time, the drive component moves, driving the cam shaft to rotate. The moving cam causes the connecting arm to intermittently compress the spring during vertical sliding. The spring switches between extension and release states under the movement trajectory of the moving cam, thereby allowing the screening box to move vertically and create a shaking effect. Then, the material can be screened, thus solving the problem that existing granulators cannot screen the produced material granules and are inconvenient to use. Attached Figure Description

[0012] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of the granulator for preparing polypropylene composite materials according to the first embodiment of this utility model.

[0014] Figure 2This is a schematic diagram of the structure of the screen according to the first embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the overall structure of the granulator for preparing polypropylene composite materials according to the second embodiment of this utility model.

[0016] In the diagram: 101-Frame, 102-Pelletizer body, 103-Discharge port, 104-Screening box, 105-Connecting arm, 106-Matching arm, 107-Fixed arm, 108-Spring, 109-Camshaft, 110-Drive component, 111-Screen, 112-Action cam, 113-Fixed plate, 114-Protective cover, 115-Arc plate, 201-First support, 202-Second support. Detailed Implementation

[0017] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Example 1: like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of a granulator for preparing polypropylene composite materials. Figure 2 This is a schematic diagram of a sieve structure. This utility model provides a granulator for preparing polypropylene composite materials: it includes a frame 101, a granulator body 102, and a screening mechanism. The screening mechanism includes a screening box 104, a connecting arm 105, a cooperating arm 106, a fixed arm 107, a spring 108, a camshaft 109, a driving component 110, and a cooperating device. The cooperating device includes a fixed plate 113 and a guiding assembly. The guiding assembly includes a protective cover 114 and an arc-shaped plate 115. This solution solves the problem that existing granulators cannot screen the produced material particles, leading to inconvenience. It is understood that the aforementioned solution can screen the produced material particles.

[0019] In this embodiment, a granulator body 102 is installed on the frame 101. The granulator body 102 directly adopts the existing technology CNCN213644054U. Its corresponding processing principle and structure are all existing technologies, and will not be described in detail here.

[0020] The screening box 104 is located below the discharge port 103 of the granulator body 102, and a screen 111 is fixedly installed at the bottom. The connecting arm 105 is symmetrically installed on the screening box 104. The mating arm 106 is slidably connected to the connecting arm 105 and fixed on the fixed arm 107, and a spring 108 is sleeved on the outside of its round shaft. The fixed arm 107 is fixed on the frame 101. The top of the spring 108 is welded to the fixed arm 107. The camshaft 109 is rotatably installed on the frame 101, and an action cam 112 is fixedly installed to slide in contact with the connecting arm 105. The driving component 110 is installed on one side of the frame 101, and its output end is connected to the camshaft 109 through a coupling. The mating device is located on the screening box 104. The connecting arm 105 is connected to the screening box 104 via positioning pins and bolts. A discharge pipe is installed on one side of the screening box 104 for discharging qualified raw material particles after screening. Receiving boxes can be installed below both the screen 111 and the discharge pipe. The two rectangular ends of the fixed arm 107 are connected to the frame 101 via positioning pins and bolts. The fixed arm 107 has a non-penetrating spline cavity running from bottom to top, facilitating the installation of the stepped spline shaft at the top of the sliding rod of the mating arm 106. The top of the spline shaft has an external thread end, which passes through the fixed arm 107 and is locked by two nuts. This enables the installation of the mating arm 106, which has a T-shaped structure with a limiting disc at the bottom. A rubber ring is fitted between the top end of the limiting disc and the connecting arm 105 for cushioning. The mounting ends of the camshaft 109 are mounted on detachable brackets on the frame 101 via rotating bearings. One of the brackets is equipped with a detachable L-shaped fixing plate, on which the drive component 110 is mounted. The drive component 110 is a drive motor, and its output shaft is connected to the camshaft 109 via a coupling.

[0021] Secondly, two symmetrically arranged actuating cams 112 on the camshaft 109 are provided. This structure is more conducive to the stable vertical movement of the screening box 104 compared to a structure with a cam on one side and a sliding guide mechanism on the other side.

[0022] Then, the fixing plate 113 is detached from the screening box 104; the guiding component is disposed on the top of the fixing plate 113. The fixing plate 113 is fixed by bolts, and the guiding component facilitates better screening of materials during screening.

[0023] Finally, the protective cover 114 and the fixing plate 113 are integrally formed; the arc plate 115 is welded and fixed to the protective cover 114, and after installation, the bottom has a material passage gap with the screen 111. The protective cover 114 is provided with a notch to avoid the discharge port 103 of the granulator body 102. The size of the notch ensures that the vertical movement of the screening box 104 does not contact the discharge port 103, but the height can prevent particles from falling to the outside. The function of the arc plate 115 after installation is that after the material particles fall, they are first screened in the area near the discharge port 103 of the granulator body 102. Then, the vertical shaking of the screening box 104 shakes the qualified particles to the other side, and finally they are discharged through the discharge pipe on the screening box 104.

[0024] When using this invention to screen post-production material particles, the granulator body 102 granulates the raw material and then discharges it. The raw material then falls into the screening box 104. At this time, the drive component 110 is activated, driving the cam shaft 109 to rotate. The action cam 112 causes the connecting arm 105 to intermittently compress the spring 108 during vertical sliding. The spring 108 switches between extension and release states under the movement trajectory of the action cam 112, thereby allowing the screening box 104 to move vertically and create a shaking effect, which then allows the material to be screened. This solves the problem that existing granulators cannot screen post-production material particles and are inconvenient to use.

[0025] Example 2: like Figure 3 As shown, where Figure 3 This is a schematic diagram of the overall structure of a granulator for preparing polypropylene composite materials. Based on the first embodiment, this utility model provides a granulator for preparing polypropylene composite materials. The granulator for preparing polypropylene composite materials also includes a reinforcing mechanism, which includes a first support 201 and a second support 202.

[0026] The first bracket 201 is connected to both the frame 101 and the fixed arm 107, and is symmetrically arranged. The second bracket 202 is connected to both the fixed arm 107 and the first bracket 201. One side of the horizontal rectangular mounting end of the first bracket 201 is bolted to the fixed arm 107, and the other side is bolted to the frame 101. One side of the second bracket 202 is welded to the first bracket 201, and the other horizontal rectangular end is bolted to the fixed arm 107.

[0027] In this embodiment, the first bracket 201 and the second bracket 202 will be able to improve the stability of the fixed arm 107.

[0028] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A granulator for preparing polypropylene composite materials, comprising a frame, wherein a granulator body is mounted on the frame, characterized in that: It also includes a screening mechanism; The screening mechanism includes a screening box, a connecting arm, a mating arm, a fixed arm, a spring, a camshaft, a drive component, and a mating device. The screening box is located below the discharge port of the granulator body and has a screen fixedly installed at the bottom. The connecting arms are symmetrically installed on the screening box. The mating arm is slidably connected to the connecting arm and fixed on the fixed arm, with the spring sleeved on the outer side of its circular shaft. The fixed arm is fixed on the frame, and the top of the spring is welded to the fixed arm. The camshaft is rotatably installed on the frame and has a fixedly installed actuating cam that slides in contact with the connecting arm. The drive component is installed on one side of the frame, and its output end is connected to the camshaft via a coupling. The mating device is located on the screening box.

2. The granulator for preparing polypropylene composite materials as described in claim 1, characterized in that: Two symmetrically arranged action cams are mounted on the camshaft.

3. The granulator for preparing polypropylene composite materials as described in claim 1, characterized in that: The cooperating device includes a fixing plate and a guiding assembly. The fixing plate is detachably connected to the screening box. The guiding assembly is disposed on the top of the fixing plate.

4. The granulator for preparing polypropylene composite materials as described in claim 3, characterized in that: The guiding component includes a protective cover and an arc-shaped plate. The protective cover is integrally formed with the fixing plate. The arc-shaped plate is welded and fixed to the protective cover, and after installation, there is a material passage gap between the bottom and the screen.

5. The granulator for preparing polypropylene composite materials as described in claim 1, characterized in that: The granulator for preparing polypropylene composite materials also includes a reinforcing mechanism, which includes a first support and a second support. The first support is connected to the frame and the fixed arm respectively and is arranged symmetrically. The second support is connected to the fixed arm and the first support respectively.

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