A device for detecting the melt flow rate of polypropylene

Abstract

The utility model provides a device for polypropylene melt flow rate detection, including base, the base is fixed with workstation, the workstation is equipped with electric control panel, the workstation is fixed with furnace body through stand, the furnace body lower part is fixed with mounting panel, the mounting panel is fixed with rotating electrical machine, the output shaft of rotating electrical machine is fixed with cutting knife, rotating electrical machine still passes through the line and this electric control panel electricity is linked, the workstation is fixed with electric straight line track horizontally, the sliding table of electric straight line track is detachable link through positioning structure and collection box, the collection box has evenly distributed several V type guide strips in, and V type guide strip will divide into several buffer parts in collection box, the workstation still is equipped with two support wheels, and support wheel can abut with collection box.

Description

Technical Field

[0001] This utility model belongs to the field of detection technology and relates to a device for detecting the melt flow rate of polypropylene. Background Technology

[0002] Polypropylene is a common thermoplastic with wide applications in industrial production and daily life. For polypropylene, melt flow rate is a crucial indicator, reflecting its fluidity in the molten state. This significantly impacts the setting of process parameters during processing and the quality performance of the final product.

[0003] When testing the flow rate of polypropylene melt, a special testing device is used to capture polypropylene melt flowing out of the device at certain time intervals. Then, multiple segments of these captured materials are selected, weighed, and the average value is taken.

[0004] In existing detection devices, the collection box for collecting the intercepted material is often placed directly on the device's worktable. However, in actual operation, to prevent the intercepted polypropylene melt material from sticking together due to its high temperature and incomplete cooling and solidification, thus affecting the accuracy of subsequent weighing and the precision of the test results, the operator must continuously move the collection box manually. This process requires the operator to constantly monitor the material interception and react promptly to ensure that each segment of intercepted material falls into the collection box individually and completely without sticking to other materials. Therefore, it is necessary to design a device for detecting the flow rate of polypropylene melt. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a device for detecting the melt flow rate of polypropylene.

[0006] The objective of this utility model can be achieved through the following technical solution: A device for detecting the melt flow rate of polypropylene includes a base, a worktable fixed on the base, an electrical control panel mounted on the worktable, a furnace body fixed on the worktable by a vertical rod, an mounting plate fixed at the lower part of the furnace body, a rotary motor fixed on the mounting plate, a cutting blade fixed on the output shaft of the rotary motor, and the rotary motor also being electrically connected to the electrical control panel via a circuit. The device is characterized in that an electric linear track is horizontally fixed on the worktable, and the slide of the electric linear track is detachably connected to a collection box via a positioning structure. The collection box has several evenly distributed V-shaped guide strips, which divide the collection box into several buffer sections. Two support wheels are also mounted on the worktable, and the support wheels can abut against the collection box.

[0007] A photoelectric sensor is also installed on the workbench, and the photoelectric sensor is electrically connected to the electronic control panel via a circuit; several L-shaped detection plates that cooperate with the photoelectric sensor are fixed on the workbench, and the positions of the L-shaped detection plates correspond one-to-one with the positions of the buffer section.

[0008] The positioning structure includes a mounting arm, a connecting arm, and a clamp. One end of the mounting arm is fixedly connected to the slide table, and the other end of the mounting arm has a protrusion. The connecting arm is fixedly connected to the collection box, and the connecting arm has a notch that mates with the protrusion. The clamp is fixed in the middle of the mounting arm, and the clamping head of the clamp can abut against the connecting arm.

[0009] The electric linear track is horizontally fixed to the worktable by a fixing block.

[0010] Both the collection box and the V-shaped guide strip are made of stainless steel.

[0011] Compared with existing technologies, this device for detecting the melt flow rate of polypropylene has the following advantages: In this invention, the electric linear track works in conjunction with the rotary motor. After the cutting blade completes one material cutting action, the electronic control panel can drive the slide of the electric linear track to move the collection box precisely to the next buffer position based on the recognition signal of the L-shaped detection piece by the photoelectric sensor. This ensures that each piece of material can fall independently into the corresponding buffer, eliminating the need for manual adjustment of the collection box position. This reduces the workload of operators and avoids material sticking due to delays or errors caused by human operation, significantly improving the automation level of the detection process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the planar structure of this utility model; Figure 2 This is a magnified view of a portion of point A; Figure 3This is a schematic diagram of the three-dimensional structure of the removed portion of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the three-dimensional structure of the removed portion of this utility model. Figure 2 ; In the diagram, 1 is the base; 2 is the workbench; 3 is the electrical control panel; 4 is the fixing block; 5 is the electric linear track; 5a is the slide table; 6 is the upright; 7 is the cutting knife; 8 is the furnace body; 9 is the rotary motor; 10 is the mounting plate; 11 is the collection box; 11a is the buffer section; 12 is the support wheel; 13 is the L-shaped detection plate; 14 is the photoelectric sensor; 15 is the V-shaped guide bar; 16 is the clamp; 17 is the mounting arm; 17a is the protrusion; 18 is the connecting arm; and 18a is the notch. Detailed Implementation

[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0014] like Figures 1-4 As shown, this polypropylene melt flow rate detection device includes a base 1, a worktable 2 fixed on the base 1, an electrical control panel 3 mounted on the worktable 2, and a furnace body 8 fixed to the worktable 2 via a vertical rod 6. The furnace body 8 is an existing product. A mounting plate 10 is fixed to the lower part of the furnace body 8, and a rotary motor 9 is fixed to the mounting plate 10. A cutting blade 7 is fixed to the output shaft of the rotary motor 9. The cutting blade 7 can cut the polypropylene melt coming out of the furnace body 8, which is an existing technology. The rotary motor 9 is also electrically connected to the electrical control panel 3 via a circuit. An electric linear track 5 is horizontally fixed to the worktable 2. Specifically, the electric linear track 5 is horizontally fixed to the worktable 2 via a fixing block 4. The slide 5a of the electric linear track 5 is connected to a fixed... The worktable 2 and the collection box 11 are detachably connected. The collection box 11 has several evenly distributed V-shaped guide bars 15, which divide the collection box 11 into several buffer sections 11a. Specifically, both the collection box 11 and the V-shaped guide bars 15 are made of stainless steel. In this embodiment, the V-shaped guide bars 15 are arranged in an inverted manner. The design of the V-shaped guide bars 15 can guide and separate the falling molten material, ensuring that the material falls accurately into the corresponding buffer section 11a. Two support wheels 12 are also installed on the worktable 2, and the support wheels 12 can abut against the collection box 11. The support wheels 12 can provide stable support for the collection box 11, reduce its shaking during movement, and further ensure the accuracy of material collection.

[0015] A photoelectric sensor 14 is also installed on the workbench 2. In this example, the movement of the collection box 11 will not interfere with the photoelectric sensor 14. The photoelectric sensor 14 is electrically connected to the electronic control panel 3 via a circuit. Several L-shaped detection plates 13 that cooperate with the photoelectric sensor 14 are fixed on the workbench 2, and the positions of the L-shaped detection plates 13 correspond one-to-one with the positions of the buffer section 11a. The cooperation between the photoelectric sensor 14 and the L-shaped detection plates 13 can provide real-time feedback on the position information of the collection box 11, providing accurate basis for the electronic control panel 3 to control the movement of the electric linear track 5, and realizing the automation and intelligence of the positioning of the collection box 11. In this embodiment, the connection between the electronic control panel 3 and the photoelectric sensor 14, the electric linear track 5, and the rotary motor 9 adopts existing technology, and its circuit does not need to be re-edited.

[0016] The positioning structure includes a mounting arm 17, a connecting arm 18, and a clamp 16. One end of the mounting arm 17 is fixedly connected to the slide table 5a, and the other end of the mounting arm 17 has a protrusion 17a. The connecting arm 18 is fixedly connected to the collection box 11, and the connecting arm 18 has a recess 18a that mates with the protrusion 17a. The clamp 16 is fixed in the middle of the mounting arm 17, and the clamping head of the clamp 16 can abut against the connecting arm 18. The fitting design of the protrusion 17a and the recess 18a in the positioning structure, combined with the clamping and fixing of the clamp 16, makes the connection between the collection box 11 and the slide table 5a stable and reliable. When disassembling, it can be easily removed by simply loosening the clamp 16, which is convenient for operators to clean and maintain the collection box 11.

[0017] In this invention, the electric linear track 5 works in conjunction with the rotary motor 9. After the cutting blade 7 completes one material cutting action, the electronic control panel 3 can drive the slide table 5a of the electric linear track 5 to move the collection box 11 precisely to the next buffer section 11a based on the recognition signal of the L-shaped detection piece 13 by the photoelectric sensor 14. This ensures that each material cut can fall independently into the corresponding buffer section 11a, eliminating the need for manual adjustment of the collection box 11. This reduces the workload of operators and avoids material sticking due to delays or errors caused by human operation, significantly improving the automation level of the detection process.

[0018] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0019] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A device for detecting the melt flow rate of polypropylene, comprising a base (1), a worktable (2) fixed on the base (1), an electrical control panel (3) mounted on the worktable (2), a furnace body (8) fixed on the worktable (2) by means of a vertical rod (6), a mounting plate (10) fixed at the lower part of the furnace body (8), a rotary motor (9) fixed on the mounting plate (10), a cutting blade (7) fixed on the output shaft of the rotary motor (9), and the rotary motor (9) also being electrically connected to the electrical control panel (3) via a circuit, characterized in that, The workbench (2) is horizontally fixed with an electric linear track (5). The slide (5a) of the electric linear track (5) is detachably connected to the collection box (11) through a positioning structure. The collection box (11) has several V-shaped guide strips (15) evenly distributed inside, and the V-shaped guide strips (15) divide the collection box (11) into several buffer sections (11a). The workbench (2) is also equipped with two support wheels (12), and the support wheels (12) can abut against the collection box (11).

2. The apparatus for detecting the melt flow rate of polypropylene according to claim 1, characterized in that, The workbench (2) is also equipped with a photoelectric sensor (14), which is connected to the electronic control panel (3) via a line; a number of L-shaped detection pieces (13) that cooperate with the photoelectric sensor (14) are fixed on the workbench (2), and the positions of the L-shaped detection pieces (13) correspond one-to-one with the positions of the buffer section (11a).

3. The apparatus for detecting the melt flow rate of polypropylene according to claim 1, characterized in that, The positioning structure includes a mounting arm (17), a connecting arm (18), and a clamp (16). One end of the mounting arm (17) is fixedly connected to the slide (5a), and the other end of the mounting arm (17) has a protrusion (17a). The connecting arm (18) is fixedly connected to the collection box (11), and the connecting arm (18) has a notch (18a) that matches the protrusion (17a). The clamp (16) is fixed in the middle of the mounting arm (17), and the clamping head of the clamp (16) can abut against the connecting arm (18).

4. The apparatus for detecting the melt flow rate of polypropylene according to claim 1, characterized in that, The electric linear track (5) is horizontally fixed on the workbench (2) by a fixing block (4).

5. The apparatus for detecting the melt flow rate of polypropylene according to claim 1, characterized in that, The collection box (11) and the V-shaped guide strip (15) are both made of stainless steel plate.

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