Pelletizing device for PP plastic particles

Abstract

The utility model discloses a PP plastic particle granulating device which comprises a hot melt extrusion assembly, a cooling assembly, a feeding assembly and a first cutting assembly, and the cooling assembly is arranged on one side of the hot melt extrusion assembly; the feeding assembly is arranged on one side of the cooling assembly; the feeding assembly comprises a feeding shell, a feeding motor and a feeding roller, the feeding shell is arranged on one side of the cooling assembly, and a feeding opening is formed in the feeding shell; the feeding motor is arranged on the feeding shell; the feeding roller is rotationally arranged in the feeding shell and connected with the feeding motor. The first cutting assembly is elastically arranged on the feeding assembly in a sliding mode and is in intermittent meshing connection with the feeding roller. Therefore, the feeding assembly performs linkage control on the cutting assembly, low-cost granulation of the PP plastic particles is achieved, and no more installation space needs to be occupied.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle processing, in particular to a PP plastic particle granulating device. Background Art

[0002] PP plastic pelletizing device is a kind of equipment used to convert polypropylene (PP) plastic into uniform sized pellets. These pellets are usually used in plastic processing processes such as injection molding and extrusion molding to produce various plastic products.

[0003] The PP plastic granulation device usually puts the plastic into a hot melt extrusion component for hot melt extrusion, and then puts it into a cooling component for cooling. After cooling and molding, the plastic is transported by a feeding component and cut by a cutting component to complete the granulation of PP plastic particles. However, the current cutting process usually requires an additionally installed cutting motor to complete. This cutting motor requires additional installation space and increases the use cost and maintenance cost of the equipment. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the purpose of the utility model is to provide a PP plastic granulation device, which realizes low-cost granulation of PP plastic particles by linkage control of a feeding component to a cutting component, and does not require a large amount of installation space.

[0006] To achieve the above-mentioned purpose, the utility model proposes a PP plastic granulation device, comprising a hot melt extrusion component, a cooling component, a feeding component and a first cutting component, wherein the cooling component is arranged on one side of the hot melt extrusion component; the feeding component is arranged on one side of the cooling component; the feeding component comprises a feeding shell, a feeding motor and a feeding roller, wherein the feeding shell is arranged on one side of the cooling component, and a feeding port is arranged on the feeding shell; the feeding motor is arranged on the feeding shell; the feeding roller is rotatably arranged inside the feeding shell and is connected to the feeding motor; the first cutting component is elastically slidably arranged on the feeding component, and is intermittently meshed with the feeding roller.

[0007] The utility model discloses a PP plastic granulation device, which realizes low-cost granulation of PP plastic granules by linkage control of a feeding component to a cutting component, and does not need to occupy much installation space.

[0008] In addition, the PP plastic granulation device proposed in the present application may also have the following additional technical features:

[0009] Specifically, the feed roller includes a first roller shaft and a second roller shaft, wherein the output shaft of the feed motor is connected to the first roller shaft; the first roller shaft and the second roller shaft are respectively rotatably connected to the feed shell; one end of the first roller shaft and the second roller shaft are respectively provided with meshing gears and meshingly connected; the other end of the first roller shaft is provided with a first incomplete gear, and the other end of the second roller shaft is provided with a second incomplete gear; the first cutting assembly is intermittently meshingly connected with the first incomplete gear.

[0010] Specifically, the first cutting assembly includes a cutting tool, a toothed slide and an adjustment mechanism, wherein the cutting tool is slidably set on the feeding shell and slidably installed at the feeding port; the toothed slide is set on one side of the cutting tool and intermittently meshed with the first incomplete gear; one end of the adjustment mechanism is set on the cutting tool, and the other end of the adjustment mechanism is set on the feeding shell.

[0011] Specifically, the adjustment mechanism includes a fixed plate, a threaded adjustment rod, an abutment sleeve, a connecting rod and a spring, wherein the fixed plate is arranged on the feeding shell; the threaded adjustment rod is threadedly connected to the fixed plate; the abutment sleeve is rotatably connected to the threaded adjustment rod; one end of the connecting rod is connected to the cutting tool, and the other end of the connecting rod is slidably connected to the abutment sleeve; the spring is sleeved on the connecting rod, one end of the spring is connected to the cutting tool, and the other end of the spring is connected to the abutment sleeve.

[0012] Specifically, the PP plastic granulation device also includes a second cutting component, which is symmetrically arranged with the first cutting component along the center line of the feed port, and one end of the second cutting component is intermittently meshed with the second incomplete gear.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic structural diagram of a PP plastic granulation device according to an embodiment of the utility model;

[0016] Figure 2 This is a schematic structural diagram of a first cutting assembly according to an embodiment of the utility model;

[0017] Figure 3 This is a structural schematic diagram of a feeding assembly according to an embodiment of the utility model;

[0018] Figure 4 The figure is a schematic structural diagram of an adjusting mechanism according to an embodiment of the utility model.

[0019] As shown in the figure: 1. Hot melt extrusion assembly; 2. Cooling assembly; 3. Feeding assembly; 30. Feeding shell; 300. Feeding port; 31. Feeding motor; 32. Feeding roller; 320. First roller shaft; 3200. Meshing gear; 3201. First incomplete gear; 321. Second roller shaft; 3210. Second incomplete gear; 4. First cutting assembly; 40. Cutting tool; 41. Toothed skateboard; 42. Adjustment mechanism; 420. Fixed plate; 421. Threaded adjustment rod; 422. Abutment sleeve; 423. Connecting rod; 424. Spring; 5. Second cutting assembly. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0021] The PP plastic granulation device according to the embodiment of the utility model will be described below in conjunction with the accompanying drawings.

[0022] like Figure 1-Figure 4 As shown, the PP plastic granulation device of the embodiment of the utility model may include a hot melt extrusion component 1, a cooling component 2, a feeding component 3 and a first cutting component 4.

[0023] Among them, the cooling component 2 is arranged on one side of the hot melt extrusion component 1, and the feeding component 3 is arranged on one side of the cooling component 2.

[0024] It should be noted that the hot melt extrusion assembly 1 described in this embodiment is a common device in the field of plastic hot melt extrusion, which can heat and melt solid plastic into a liquid state, and then extrude it through a spiral extrusion mechanism.

[0025] It should be noted that the cooling component 2 described in this embodiment is a common cooling equipment in the plastic hot melt extrusion cooling process, including components such as a circulating water tank, a circulating water pump and a cooling water trough. It can cool the extruded liquid plastic through the cooling water trough and form it into a solid strip, thereby facilitating the feeding component 3 to transport, cut and granulate the plastic.

[0026] The feeding assembly 3 may include a feeding housing 30 , a feeding motor 31 and a feeding roller 32 .

[0027] The feeding shell 30 is arranged at one side of the cooling assembly 2 , and a feeding port 300 is arranged on the feeding shell 30 .

[0028] It should be noted that the feed port 300 described in this embodiment is a through hole, so as to facilitate the feeding and discharging of plastic.

[0029] The feeding motor 31 is disposed on the feeding housing 30 , and the feeding roller 32 is rotatably disposed inside the feeding housing 30 and connected to the feeding motor 31 .

[0030] It can be understood that, by providing the feeding roller 32 , the feeding of the plastic after cooling and forming can be achieved.

[0031] The first cutting assembly 4 is elastically slidably disposed on the feeding assembly 3 and is intermittently meshed with the feeding roller 32 .

[0032] It can be understood that, while the feeding component 3 is feeding the material, the first cutting component 4 is controlled to cut and granulate, thereby realizing low-cost granulation of the device and solving the problem that the installation of the cutting motor requires additional use area.

[0033] Specifically, in the actual operation process, the relevant personnel put the solid PP plastic into the hot melt extrusion component 1, the hot melt extrusion component 1 heats the solid PP plastic into a liquid state, and extrude the liquid plastic into the cooling component 2, the cooling component 2 cools and forms it, and the relevant personnel feeds the cooled and formed plastic into the feeding port 300, and starts the feeding motor 31 to drive the feeding roller 32 to rotate, and continuously conveys the cooled and formed plastic. While the feeding roller 32 rotates, the first cutting component 4 is controlled to perform cutting and granulation, thereby completing the granulation of PP plastic particles, thereby realizing low-cost granulation of PP plastic particles without occupying more installation space.

[0034] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the feed roller 32 may include a first roller shaft 320 and a second roller shaft 321 .

[0035] Among them, the output shaft of the feeding motor 31 is connected to the first roller 320, and the first roller 320 and the second roller 321 are respectively rotatably connected to the feeding shell 30. One end of the first roller 320 and the second roller 321 are respectively provided with meshing gears 3200 and meshingly connected. The other end of the first roller 320 is provided with a first incomplete gear 3201, and the other end of the second roller 321 is provided with a second incomplete gear 3210. The first cutting component 4 is intermittently meshingly connected with the first incomplete gear 3201.

[0036] It should be noted that the first roller 320 and the second roller 321 described in this embodiment are respectively provided with meshing gears 3200. The first roller 320 is driven by the rotation of the feeding motor 31. Under the control of the gear meshing, the second roller 321 rotates, thereby realizing the linkage control of the first roller 320 and the second roller 321 by a single motor, thereby reducing the use of motors and reducing the use and maintenance costs of the device.

[0037] It can be understood that, through the intermittent meshing connection between the first cutting component 4 and the first incomplete gear 3201, the first cutting component 4 can slide elastically back and forth at the feeding port 300 of the feeding shell 30, thereby realizing the cutting and granulation of the plastic by the first cutting component 4.

[0038] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the first cutting assembly 4 may include a cutting tool 40 , a toothed slide plate 41 and an adjustment mechanism 42 .

[0039] Among them, the cutting tool 40 is slidably set on the feeding shell 30 and slidably installed at the feeding port 300, the toothed slide plate 41 is set on one side of the cutting tool 40 and intermittently meshes with the first incomplete gear 3201, one end of the adjusting mechanism 42 is set on the cutting tool 40, and the other end of the adjusting mechanism 42 is set on the feeding shell 30.

[0040] It can be understood that, by providing the toothed slide plate 41 , the first incomplete gear 3201 can control the cutting tool 40 .

[0041] It should be noted that the adjustment mechanism 42 described in this embodiment can provide elastic restoring force for the cutting tool 40 , thereby realizing the reciprocating cutting and granulation of the first cutting tool 40 on the feeding port 300 .

[0042] It should be noted that the intermittent meshing of the toothed slide plate 41 and the first incomplete gear 3201 described in this embodiment can realize the reciprocating cutting of the cutting tool 40 on the feed port 300, thereby realizing the cutting and granulation of the plastic by the first cutting component 4.

[0043] In one embodiment of the present invention, Figure 1-Figure 4 As shown, it is characterized in that the adjustment mechanism 42 may include a fixing plate 420 , a threaded adjustment rod 421 , an abutment sleeve 422 , a connecting rod 423 and a spring 424 .

[0044] Wherein, the fixing plate 420 is arranged on the feeding housing 30;

[0045] The threaded adjustment rod 421 is threadedly connected to the fixing plate 420;

[0046] The abutment sleeve 422 is rotatably connected to the threaded adjustment rod 421;

[0047] One end of the connecting rod 423 is connected to the cutting tool 40, and the other end of the connecting rod 423 is slidably plugged into the abutting sleeve 422;

[0048] The spring 424 is sleeved on the connecting rod 423 , one end of the spring 424 is connected to the cutting tool 40 , and the other end of the spring 424 is connected to the abutting sleeve 422 .

[0049] It can be understood that by setting the adjustment mechanism 42, the elastic recovery of the cutting tool 40 can be adjusted and increased, thereby adjusting the cutting speed of the cutting tool 40, thereby achieving the adjustment mechanism 42 to adjust the cutting and granulation efficiency of the cutting tool 40 or adjust the cutting tool 40 to cut plastic particles of different diameters.

[0050] In one embodiment of the present invention, Figure 1-Figure 3 As shown, a second cutting assembly 5 may also be included. The second cutting assembly 5 and the first cutting assembly 4 are symmetrically arranged along the center line of the feeding port 300 , and one end of the second cutting assembly 5 is intermittently meshed with the second incomplete gear 3210 .

[0051] It should be noted that the tooth blocks of the second incomplete gear 3210 and the first incomplete gear 3201 described in this embodiment are oriented in opposite directions, thereby avoiding the situation where the first cutting assembly 4 and the second cutting assembly 5 cut at the same time, thereby improving the cutting efficiency of the device.

[0052] Specifically, in the actual operation process, the relevant personnel put the solid PP plastic into the hot melt extrusion component 1, the hot melt extrusion component 1 melts the solid PP plastic into a liquid state, and extrude the liquid plastic into the cooling component 2, the cooling component 2 cools and forms it, and the relevant personnel feeds the cooled and formed plastic into the feeding port 300, and starts the feeding motor 31 to drive the first roller 320 and the second roller 321 to rotate, continuously conveying the cooled and formed plastic, and at the same time driving the first incomplete gear 3201 and the second incomplete gear 3210 to rotate, thereby driving the first cutting component 4 and the second cutting component 5 to slide back and forth on the feeding port 300 respectively.

[0053] The first incomplete gear 3201 intermittently meshes with the toothed slide plate 41, causing the toothed slide plate 41 to slide upward and squeeze the spring 424. After the first incomplete gear 3201 disengages from the control of the toothed slide plate 41, the spring 424 restores its elastic deformation, causing the cutting tool 40 to cut and granulate the plastic at the feed port 300 downward, and this reciprocating motion is repeated, thereby achieving the cutting and granulation of PP plastic particles.

[0054] In summary, the embodiment of the utility model realizes low-cost granulation of PP plastic particles by linkage control of the cutting component through the feeding component, and does not need to occupy a large installation space.

[0055] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A PP plastic granulation device, characterized in that: It includes a hot melt extrusion component, a cooling component, a feeding component and a first cutting component, wherein: The cooling component is arranged on one side of the hot melt extrusion component; The feeding assembly is arranged on one side of the cooling assembly; The feeding assembly includes a feeding housing, a feeding motor and a feeding roller, wherein: The feeding shell is arranged on one side of the cooling assembly, and a feeding port is arranged on the feeding shell; The feeding motor is arranged on the feeding housing; The feeding roller is rotatably arranged inside the feeding housing and is connected to the feeding motor; The first cutting assembly is elastically slidably arranged on the feeding assembly and is intermittently meshed and connected with the feeding roller.

2. The PP plastic granulation device according to claim 1, characterized in that: The feeding roller comprises a first roller shaft and a second roller shaft, wherein: The output shaft of the feeding motor is connected to the first roller shaft; The first roller shaft and the second roller shaft are rotatably connected to the feeding housing respectively; One end of the first roller shaft and the second roller shaft are respectively provided with meshing gears and meshedly connected; A first incomplete gear is disposed at the other end of the first roller shaft, and a second incomplete gear is disposed at the other end of the second roller shaft; The first cutting assembly is intermittently meshed with the first incomplete gear.

3. The PP plastic granulation device according to claim 2 is characterized in that: The first cutting assembly includes a cutting tool, a toothed slide plate and an adjustment mechanism, wherein: The cutting tool is slidably arranged on the feeding housing and slidably installed at the feeding port; The toothed slide plate is arranged on one side of the cutting tool and is intermittently meshed with the first incomplete gear; One end of the adjusting mechanism is arranged on the cutting tool, and the other end of the adjusting mechanism is arranged on the feeding shell.

4. The PP plastic granulation device according to claim 3 is characterized in that: The adjustment mechanism includes a fixing plate, a threaded adjustment rod, an abutment sleeve, a connecting rod and a spring, wherein: The fixing plate is arranged on the feeding housing; The threaded adjustment rod is threadedly connected to the fixing plate; The abutment sleeve is rotatably connected to the threaded adjustment rod; One end of the connecting rod is connected to the cutting tool, and the other end of the connecting rod is slidably plugged into the abutting sleeve; The spring is sleeved on the connecting rod, one end of the spring is connected to the cutting tool, and the other end of the spring is connected to the abutting sleeve.

5. The PP plastic granulation device according to claim 4, characterized in that: It also includes a second cutting assembly, which is symmetrically arranged with the first cutting assembly along the center line of the feeding port, and one end of the second cutting assembly is intermittently meshed with the second incomplete gear.

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