Melt speed measuring device

Abstract

The utility model discloses a melt velocity measurement device, which comprises a connecting pipe, an electromagnetic flow monitoring instrument, an inner container, an exciting coil and an iron core, the upper side and the lower side of the connecting pipe are fixedly connected with connecting sleeves, one side of each connecting sleeve is fixedly connected with a driving motor, the output end of each driving motor is fixedly connected with a driving gear, and the driving gear is meshed with a movable rack. The upper side of the movable rack corresponds to the inner side of the connecting sleeve, a fixing ring is fixedly connected between the inner container and the connecting pipe, the two ends of the movable rack are fixedly connected with connecting ropes, one end of each connecting rope is fixedly connected with a scraping ring, and the scraping rings make contact with the inner wall of the inner container. Therefore, the connecting rope drags the scraping ring to clean the inner container, and the scraping ring is cleaned through the baffle ring, so that the flow velocity of the connecting pipe at the electromagnetic flow monitoring instrument is kept constant, and the speed measurement accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of melt spinning, in particular to a melt speed measuring device. Background Art

[0002] Melt spinning is a process that heats and melts polymer materials to form a liquid, and then passes through a spinning head through processes such as stretching, cooling and twisting to finally form fibers. In the melt spinning process, measuring the flow rate is a key step, which can directly detect the quality and performance of the fiber, and can usually be detected by an electromagnetic flowmeter.

[0003] According to the Chinese patent publication number CN206266753U, "A melt speed measuring device", it mainly describes that a rotating blade is placed in a fluid cavity, and the flow of the fluid drives the rotation of the rotating blade, thereby driving the rotation of the speed measuring disk. The proximity switch at the bottom of the speed measuring disk can sense the movement of the speed measuring disk and obtain a switch signal. The PLC calculates the rotation speed of the blade, so the flow rate inside the melt can be measured at all times, solving the problem that the melt flow is difficult to monitor during the melt spinning process. In this process, the melt spinning will produce adhesion during pipeline transmission and monitoring, affecting the flow of the molten liquid in the pipeline, thereby affecting the speed measurement of the electromagnetic flowmeter.

[0004] Therefore, a melt speed measuring device is proposed to solve the problem that melt spinning will stick during pipeline transmission and monitoring, affecting the flow of the molten liquid in the pipeline and thus affecting the speed measurement of the electromagnetic flowmeter. Utility Model Content

[0005] The technical problem to be solved by the utility model is that in this process, melt spinning will produce adhesion during pipeline transmission and monitoring, affecting the flow of the molten liquid in the pipeline, thereby affecting the speed measurement of the electromagnetic flowmeter, so a melt speed measuring device is proposed.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a melt speed measuring device, including a connecting pipe, an electromagnetic flow monitoring instrument, an inner tank, an excitation coil and an iron core, the upper and lower sides of the connecting pipe are fixedly connected with connecting sleeves, one side of the connecting sleeve is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with a driving gear, a moving rack is meshed on the driving gear, the upper side of the moving rack corresponds to the inner side of the connecting sleeve, a fixing ring is fixedly connected between the inner tank and the connecting pipe, both ends of the moving rack are fixedly connected with connecting ropes, one end of the connecting rope is fixedly connected with a scraper ring, and the scraper ring contacts the inner wall of the inner tank.

[0007] As a preferred technical solution of the utility model, a connecting ring is fixedly connected inside the inner tank, one end of the connecting ring is fixedly connected to a support rod, and one end of the support rod is fixedly connected to a retaining ring. By arranging the connecting ring and the support rod, support can be provided for the retaining ring, thereby cleaning the inside of the scraper ring.

[0008] As a preferred technical solution of the utility model, the inner liner is fixedly connected to a limiting rod on one side of the fixed ring, the limiting rod is in contact with the connecting rope, the connecting rope is sleeved with an extrusion disk and the extrusion disk is fixedly connected to one side of the inner liner, and the scraper ring can be driven to move by arranging a fiber rod and a connecting rope.

[0009] As a preferred technical solution of the utility model, a support plate is fixedly connected to one side of the connecting tube, and a rotating rod is rotatably connected to the support plate. The rotating rod corresponds to the movable rack. By setting the support plate and the rotating rod, a limit can be provided for the connecting rope, thereby maintaining the stability of the scraper ring movement.

[0010] As a preferred technical solution of the utility model, one side of the movable rack is in contact with a sliding ball, and the sliding ball is rotatably embedded in the inner side of the connecting sleeve. By providing the sliding ball, the movable rack can be easily moved smoothly.

[0011] The utility model has the following advantages: a connecting sleeve is arranged on the outside of the connecting pipe, and a driving gear is used to drive the movable rack to move, so that the connecting rope pulls the scraper ring to clean the inner tank, and then the scraper ring is cleaned by the retaining ring, so that the flow velocity of the connecting pipe at the electromagnetic flow monitoring instrument is kept constant, thereby improving the accuracy of speed measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a side cross-sectional structural schematic diagram of a melt speed measuring device according to a preferred embodiment of the utility model;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of a connection sleeve of a melt speed measuring device in a preferred embodiment of the utility model;

[0014] Figure 3 It is a schematic diagram of the enlarged structure of position A of a melt speed measuring device in a preferred embodiment of the utility model.

[0015] Explanation of the accompanying drawings: 1. connecting pipe; 2. electromagnetic flow monitoring instrument; 3. inner tank; 4. excitation coil; 5. iron core; 6. connecting sleeve; 7. driving gear; 8. moving rack; 9. connecting rope; 10. scraper ring; 11. connecting ring; 12. support rod; 13. retaining ring; 14. limiting rod; 15. extrusion disk; 16. fixing ring; 17. support plate; 18. rotating rod; 19. sliding ball. DETAILED DESCRIPTION

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Please refer to Figure 1-3 A melt speed measuring device shown in the figure comprises a connecting pipe 1, an electromagnetic flow monitoring instrument 2, an inner tank 3, an exciting coil 4 and an iron core 5. The connecting pipe 1, the electromagnetic flow monitoring instrument 2, the inner tank 3, the exciting coil 4 and the iron core 5 constitute an electromagnetic flowmeter, which is an instrument for measuring the volume flow of a conductive liquid by using the principle of electromagnetic induction, thereby measuring the flow rate of the melt in the melt spinning process. The upper and lower sides of the connecting pipe 1 are fixedly connected to a connecting sleeve 6, one side of the connecting sleeve 6 is fixedly connected to a driving motor, and the output end of the driving motor is fixedly connected to a driving gear 7. A moving rack 8 is meshed on the driving gear 7. The upper side of the moving rack 8 corresponds to the inner side of the connecting sleeve 6. The driving motor drives the driving gear 7 to rotate and moves the moving rack 8. Under the action of the connecting rope 9, the scraper ring 10 is pulled to move on the inner wall of the inner tank 3. A fixing ring 16 is fixedly connected between the inner tank 3 and the connecting pipe 1. Both ends of the moving rack 8 are fixedly connected to the connecting rope 9, which is made of glass fiber. One end of the connecting rope 9 is fixedly connected to the scraper ring 10, which is made of non-magnetic material. The scraper ring 10 contacts the inner wall of the inner tank 3.

[0018] The retaining ring 13 is fixedly connected to one end of the support rod 12 , the support rod 12 is fixedly connected to one end of the connecting ring 11 , and the connecting ring 11 is fixedly connected in the inner tank 3 . By setting the retaining ring 13 , the inner wall of the scraper ring 10 can be cleaned.

[0019] Among them, extrusion plates 15 are fixedly connected on both sides of the inner liner 3, the extrusion plates 15 are sleeved with the connecting rope 9, the connecting rope 9 is in contact with the limiting rod 14, the limiting rod 14 is fixedly connected in the inner liner 3, and the limiting rod 14 is located on one side of the fixing ring 16. By setting the extrusion plates 15, the molten liquid can be reduced from moving out of the connecting tube 1 along with the connecting rope 9.

[0020] Among them, the movable rack 8 corresponds to the rotating rod 18, the rotating rod 18 rotates to connect the support plate 17, and the support plate 17 is fixedly connected to one side of the connecting pipe 1. By setting the support plate 17 and the rotating rod 18, a limit can be provided for the connecting rope 9, so that the connecting rope 9 can move stably.

[0021] A sliding ball 19 is rotatably embedded inside the connecting sleeve 6 , and the sliding ball 19 contacts the moving rack 8 . By providing the sliding ball 19 , the friction of the moving rack 8 when it moves is reduced.

[0022] Working principle: When the electromagnetic flowmeter is monitoring, the driving motor on one side of the connecting sleeve 6 is started to drive the driving gear 7 to rotate, and the moving rack 8 moves back and forth. At this time, the connecting ropes 9 on both sides of the moving rack 8 move back and forth. At this time, the connecting ropes 9 pull the scraper ring 10 to move in the inner tank 3 to clean the inner wall of the inner tank 3. In the process of the scraper ring 10 moving left and right, it will contact the baffle ring 13. At this time, the molten liquid stuck on the inner wall of the scraper ring 10 is cleaned, thereby achieving the effect of accurate speed measurement.

[0023] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

[0024] Other parts of the present invention not described in detail belong to the prior art and will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A melt speed measuring device, comprising a connecting pipe (1), an electromagnetic flow monitoring instrument (2), an inner tank (3), an exciting coil (4) and an iron core (5), characterized in that: The upper and lower sides of the connecting tube (1) are fixedly connected to a connecting sleeve (6), one side of the connecting sleeve (6) is fixedly connected to a driving motor, and the output end of the driving motor is fixedly connected to a driving gear (7), a moving rack (8) is meshed on the driving gear (7), and the upper side of the moving rack (8) corresponds to the inner side of the connecting sleeve (6), a fixing ring (16) is fixedly connected between the inner liner (3) and the connecting tube (1), both ends of the moving rack (8) are fixedly connected to a connecting rope (9), one end of the connecting rope (9) is fixedly connected to a scraper ring (10), and the scraper ring (10) contacts the inner wall of the inner liner (3).

2. A melt speed measuring device according to claim 1, characterized in that: A connecting ring (11) is fixedly connected inside the inner liner (3), one end of the connecting ring (11) is fixedly connected to a support rod (12), and one end of the support rod (12) is fixedly connected to a retaining ring (13).

3. A melt speed measuring device as claimed in claim 2, characterized in that: The inner liner (3) is fixedly connected to a limiting rod (14) on one side of the fixing ring (16); the limiting rod (14) is in contact with a connecting rope (9); a pressing plate (15) is sleeved on the connecting rope (9); and the pressing plate (15) is fixedly connected to one side of the inner liner (3).

4. A melt speed measuring device as claimed in claim 1, characterized in that: A support plate (17) is fixedly connected to one side of the connecting pipe (1), a rotating rod (18) is rotatably connected to the support plate (17), and the rotating rod (18) corresponds to the movable rack (8).

5. A melt speed measuring device as claimed in claim 4, characterized in that: One side of the movable rack (8) contacts a sliding ball (19), and the sliding ball (19) is rotatably embedded in the inner side of the connecting sleeve (6).

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