Production apparatus for pet friction material

Abstract

The application discloses a production device for PET rubbing material, which comprises a machine barrel extending in the front-back direction, a screw rod rotatably installed in the machine barrel, a driving mechanism for driving the screw rod to rotate, a heat preservation cover sleeved on the machine barrel, a plurality of heating rings installed on the machine barrel in sequence from front to back, an air cooling mechanism installed on the heat preservation cover and a measuring mechanism at the rear end of the machine barrel, the machine barrel comprises a feeding port for feeding raw materials and a discharging port for discharging materials, the length-diameter ratio of the screw rod is 30:1, a cold water jacket is arranged at the feeding port, the air cooling mechanism comprises a double-head fan installed at the bottom of the heat preservation cover and a plurality of air outlet pipes penetrating through the heat preservation cover, one end of each air outlet pipe is connected with an air outlet of the double-head fan, and the other end of each air outlet pipe extends into the heat preservation cover and faces the machine barrel; the measuring mechanism is installed at the discharging port and comprises a temperature measuring element and a pressure measuring element; the application is especially suitable for the production of PET rubbing material, can sufficiently melt and plasticize the PET rubbing material and stably produces high-quality materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical fiber production equipment, in particular to a production equipment for PET friction material. BACKGROUND

[0002] The PET friction material is a special material made of polyethylene terephthalate (PET), which has strong wear resistance, high temperature resistance and high chemical stability, and is widely used in brake pads in automobile braking systems, transmission and braking of mechanical equipment, and sliding and friction parts of some electronic devices in electronic products. The current production equipment often does not sufficiently plasticize the PET friction material, resulting in insufficient plasticization of the produced melt, and finally the product quality is poor and the performance is low, which cannot meet the market demand. SUMMARY

[0003] In order to solve the above technical problems, the purpose of the present application is to provide a production equipment for PET friction material.

[0004] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: a production equipment for PET friction material, comprising:

[0005] A barrel extends in the front-rear direction and includes a feed inlet for feeding raw materials and a discharge outlet for discharging materials;

[0006] A screw is rotatably installed in the barrel, and the length-diameter ratio of the screw is 30:1;

[0007] A driving mechanism is installed at the front end of the barrel and is in driving connection with the screw to drive the screw to rotate around its own axis in the barrel;

[0008] A cold water jacket is arranged at the feed inlet of the barrel;

[0009] A heat preservation cover is sleeved on the outside of the barrel, and the heat preservation cover is provided with a heat dissipation opening, and a heat dissipation net is installed at the heat dissipation opening;

[0010] A plurality of heating rings are installed in sequence from front to back on the outer surface of the barrel and are located on the inner side of the heat preservation cover;

[0011] An air cooling mechanism includes a double-head fan and a plurality of air outlet pipes, the double-head fan is installed at the bottom of the heat preservation cover, the plurality of air outlet pipes are respectively arranged on the heat preservation cover, one end of each air outlet pipe is connected with the air outlet of the double-head fan, and the other end of each air outlet pipe extends into the heat preservation cover and faces the barrel; and

[0012] A measuring mechanism is installed at the discharge outlet, and the measuring mechanism includes a temperature measuring element and a pressure measuring element.

[0013] In the above technical solution, further preferably, the barrel is made of 40Cr material.

[0014] In the above technical solution, further preferably, the screw is made of 38CrMoAlA material.

[0015] In the above technical solution, further preferably, the driving mechanism comprises a speed reducer, a driving motor and a transmission assembly, the speed reducer is in transmission connection with the screw, the transmission assembly is in transmission connection between the speed reducer and the driving motor, the transmission assembly comprises a first pulley, a second pulley and a transmission belt tensioned between the first pulley and the second pulley, the first pulley is coaxially arranged with a transmission shaft of the speed reducer, and the second pulley is coaxially arranged with an output shaft of the driving motor.

[0016] In the above technical solution, further preferably, the driving mechanism further comprises an adjusting assembly, the driving motor is mounted on the adjusting assembly, and the adjusting assembly is used to drive the driving motor to approach and move away from the speed reducer.

[0017] In the above technical solution, further preferably, the speed reducer is provided with a cooling passage, and the cooling passage is in fluid communication with a cooling oil pump.

[0018] In the above technical solution, further preferably, the heat preservation cover comprises a first heat preservation cover and a second heat preservation cover arranged in sequence from front to back, the heat dissipation port is arranged on the second heat preservation cover, the double-head fan is mounted on the bottom of the second heat preservation cover, and the plurality of air outlet pipes are mounted on the second heat preservation cover, and the positions of the heat dissipation ports and the double-head fan correspond to each other.

[0019] In the above technical solution, further preferably, the temperature measuring element is a PT100 platinum resistance, and the pressure measuring element is a 1 / 2-20UNF pressure sensor.

[0020] In the above technical solution, further preferably, each of the plurality of heating rings is a ceramic heating ring.

[0021] In the above technical solution, further preferably, the production equipment further comprises a rack and a plurality of support frames, the barrel, the speed reducer, the heat preservation cover, the double-head fan and the measuring mechanism are all mounted on the rack, the plurality of support frames are mounted on the rack at intervals from front to back, and the barrel is mounted on the plurality of support frames.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] The production equipment of the present application is especially suitable for the production of PET friction material, and can fully melt and plasticize the PET friction material to stably produce high-quality material. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A front view of a production equipment provided by an embodiment of the present application;

[0025] Figure 2 A partial enlarged view of A in Figure 1

[0026] Figure 3 A top view of the production equipment in Figure 1

[0027] Figure 4 A side view of the production equipment in Figure 1

[0028] Wherein: 1, barrel; 101, feed inlet; 102, discharge outlet; 2, screw; 3, driving mechanism; 31, speed reducer; 32, driving motor; 33, transmission assembly; 331, first pulley; 332, second pulley; 333, transmission belt; 334, belt cover; 34, adjusting assembly; 35, cooling oil pump; 36, cooling passage; 4, cold water jacket; 5, heat preservation cover; 51, first heat preservation cover; 52, second heat preservation cover; 53, heat dissipation net; 6, heating ring; 7, air cooling mechanism; 71, double-head fan; 72, air outlet pipe; 73, air cover; 8, measuring mechanism; 81, temperature measuring element; 82, pressure measuring element; 91, rack; 92, support frame. DETAILED DESCRIPTION

[0029] To describe the technical content, structural features, purposes and effects of the application in detail, the technical solutions of the embodiments of the present application will be described below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. In the following description, for the purpose of explanation, many specific details are set forth in order to provide a thorough understanding of various exemplary embodiments or implementations of the application. However, various exemplary embodiments can also be implemented without these specific details or in one or more equivalent arrangements. In addition, various exemplary embodiments can be different, but not necessarily exclusive. For example, the specific shape, structure and characteristics of the exemplary embodiments can be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0030] The present application provides a production equipment for PET friction material, as shown in Figure 1 , 2 ​​​As shown, the production equipment comprises: a barrel 1, a screw 2, a driving mechanism 3, a cold water jacket 4, a heat preservation cover 5, a plurality of heating rings 6, an air cooling mechanism 7 and a measuring mechanism 8.

[0031] The barrel 1 extends in the front-rear direction, and the side wall of the front part of the barrel 1 is provided with an inlet 101 for feeding raw materials, and the rear end of the barrel 1 is provided with an outlet 102 for discharging materials. The driving mechanism 3 is installed at the front end of the barrel 1, and the measuring mechanism 8 is installed at the outlet 102 of the rear end of the barrel 1. In the embodiment of the present application, the barrel 1 is made of 40Cr material, the screw 2 is made of 38CrMoAlA material, and the barrel 1 and the screw 2 are both subjected to nitriding and double alloying treatment, the alloy layer of the barrel 1 is single-sidedly made to be not less than 1.5 mm, so that the hardness of the barrel 1 reaches HV900-HV980, and the brittleness is not greater than 2 levels. The wear resistance and corrosion resistance of the barrel 1 and the screw 2 of the present application are improved, which is especially suitable for PET friction material, effectively prolonging the service life of the barrel 1 and the screw 2.

[0032] The screw 2 extends in the front-rear direction and is rotatably installed in the barrel 1 around its own axis, and the length-diameter ratio of the screw is 30:1. By increasing the length-diameter ratio, the material melting is more sufficient, more uniform, and the plasticization is better.

[0033] As shown in Figure 1 , 3 , the driving mechanism 3 is in transmission connection with the screw 2 to drive the screw 2 to rotate around its own axis in the barrel 1. The driving mechanism 3 comprises a speed reducer 31, a driving motor 32 and a transmission assembly 33, the transmission assembly 33 is in transmission connection between the speed reducer 31 and the driving motor 32, the power of the driving motor 32 is transmitted to the speed reducer 31, the speed reducer 31 is in transmission connection with the screw 2, so that the power of the driving motor 32 is transmitted to the screw 2, and the screw 2 rotates around its own axis. The speed reducer 31 is provided with a cooling channel 36, the cooling channel 36 is in fluid communication with a cooling oil pump 35, the cooling oil pump 35 provides cooling oil to the cooling channel 36, and the cooling oil flows through the cooling channel 36 to cool the speed reducer 31, so as to avoid the influence of over-temperature on the performance of the speed reducer 31.

[0034] The transmission assembly 33 comprises a first pulley 331, a second pulley 332 and a transmission belt 333 tensioned between the first pulley 331 and the second pulley 332, the first pulley 331 is coaxially arranged with a transmission shaft of the speed reducer 31, and the second pulley 332 is coaxially arranged with an output shaft of the driving motor 32. The driving motor 32 drives the second pulley 332 to rotate, the transmission belt 333 drives the first pulley 331 to rotate, so that the speed reducer 31 can drive the screw 2 to rotate.

[0035] The driving mechanism 3 further comprises an adjusting assembly 34, the driving motor 32 is installed on the adjusting assembly 34, and the adjusting assembly 34 is used for driving the driving motor 32 to be close to and away from the speed reducer 31, so that the tightness of the transmission belt 33 is adjusted, the service life of the transmission belt is prolonged, and the power transmission of the driving mechanism 3 is stable. In order to avoid safety accidents caused by the exposure of the transmission assembly 33, the belt cover 334 is arranged outside the transmission assembly 22, and the safety is improved.

[0036] Continuing to refer to Figure 1 The cold water jacket 4 is arranged at the feeding port 101 of the cylinder 1, and is used for reducing the temperature of the cylinder at the feeding port 101, so as to avoid bridging or premature melting of the raw materials at the feeding port 101.

[0037] A plurality of heating rings 6 are sequentially installed on the outer surface of the cylinder 1 from front to back, and the plurality of heating rings 6 are used for heating the cylinder 1, so that the temperature inside the cylinder 1 reaches a suitable temperature for fully melting the materials. In the embodiment of the application, the heating rings 6 are all ceramic heating rings, and the heating is stable and uniform.

[0038] The cylinder 1 is sleeved with a heat preservation cover 5, the heat preservation cover 5 covers the outside of the plurality of heating rings 6, and plays a heat preservation role. In the embodiment of the application, the heat preservation cover 5 has a first heat preservation cover 51 and a second heat preservation cover 52 which are connected in front and back, and the second heat preservation cover 52 is located at the rear side of the first heat preservation cover 51. The top of the second heat preservation cover 52 is provided with a heat dissipation opening, and a heat dissipation net 53 is installed at the heat dissipation opening.

[0039] The air cooling mechanism 7 comprises a pair of double-head fans 71 and four air outlet pipes 72. The pair of double-head fans 71 are installed on the bottom of the second heat preservation cover 52 in the front-rear direction, and each double-head fan 71 has a pair of air outlets. The four air outlet pipes 72 are respectively arranged on the bottom of the second heat preservation cover 52, one end of each air outlet pipe 72 is connected to one air outlet of the double-head fan 71, and the other end of each air outlet pipe 72 extends into the inside of the second heat preservation cover 52 and faces the cylinder 1. Each air outlet pipe 72 further comprises a fan cover 73 which is arranged at the end of the air outlet pipe 72 facing the cylinder 1 and has a funnel shape. The fan cover 73 enables the air to be quickly diffused, thereby improving the cooling efficiency. When the temperature of the materials in the cylinder 1 is too high, the pair of double-head fans 71 are started to blow air into the heat preservation cover 5 through the four air outlet pipes 72. The air flow carries the temperature on the surface of the cylinder 1 out of the heat preservation cover 5 through the heat dissipation opening, thereby cooling the cylinder 1 and stabilizing the temperature of the materials in the cylinder 1. The heat dissipation opening corresponds to the position of the pair of double-head fans 71, so that the hot air can be quickly discharged from the heat preservation cover 5.

[0040] As Figure 1 , 2As shown, the measuring mechanism 8 comprises a temperature measuring element 81 for detecting the temperature of the material and a pressure measuring element 82 for detecting the pressure at the discharge port 102 of the barrel 1. The temperature measuring element 81 is a PT100 platinum resistance, and the pressure measuring element 82 is a 1 / 2-20UNF pressure sensor.

[0041] The production device of the present application has a control system, which is in control connection with the temperature measuring element 81, the pressure measuring element 82, the double-head fan 71, the heating ring 6 and the driving motor 32. The control system adjusts the operation of the double-head fan 71, the heating ring 6 and the driving motor 32 according to the detection results of the temperature measuring element 81 and the pressure measuring element 82, so that the production device can melt and plasticize the material at a proper temperature and extrude the material at a stable pressure, thereby improving the quality of the material.

[0042] The production device further comprises a rack 91 and a plurality of support frames 92. The barrel 1, the speed reducer 31, the heat preservation cover 5, the double-head fan 71 and the measuring mechanism 8 are all installed on the rack 91, and the plurality of support frames 92 are installed on the rack 91 from front to back at intervals. The barrel 1 is installed on the plurality of support frames 92, and the support frames 92 fix the barrel 1 on the rack 91, thereby improving the stability of the production device during operation.

[0043] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and the scope of protection of the present application is defined by the appended claims, the specification and their equivalents.

Claims

1. An apparatus for the production of PET friction material, characterized by, The utility model relates to a production equipment for producing plastic granules, which comprises a barrel extending in the front-rear direction and comprising an inlet for feeding raw materials and an outlet for discharging the materials; a screw rotatably installed in the barrel, the length-diameter ratio of the screw being 30:1; a driving mechanism installed at the front end of the barrel and in driving connection with the screw to drive the screw to rotate around its own axis in the barrel; a cold water jacket arranged at the inlet of the barrel; a heat-insulating cover sleeved on the outside of the barrel, the heat-insulating cover being provided with heat dissipation openings, and a heat dissipation net being installed at the heat dissipation openings; a plurality of heating rings sequentially installed from front to back on the outer surface of the barrel and all located inside the heat-insulating cover; an air cooling mechanism comprising a double-head fan and a plurality of air outlet pipes, the double-head fan being installed at the bottom of the heat-insulating cover, the plurality of air outlet pipes being respectively arranged through the heat-insulating cover, one end of each air outlet pipe being connected with the air outlet of the double-head fan, and the other end of each air outlet pipe extending into the heat-insulating cover and facing the barrel; and a measuring mechanism installed at the outlet, the measuring mechanism comprising a temperature measuring element and a pressure measuring element. The barrel is made of 40Cr material. The screw is made of 38CrMoAlA material. The driving mechanism comprises a speed reducer, a driving motor and a transmission assembly, the speed reducer is in driving connection with the screw, the transmission assembly is in driving connection between the speed reducer and the driving motor, the transmission assembly comprises a first pulley, a second pulley and a transmission belt tensioned between the first pulley and the second pulley, the first pulley is coaxially arranged with a transmission shaft of the speed reducer, and the second pulley is coaxially arranged with an output shaft of the driving motor. The driving mechanism further comprises an adjusting assembly, the driving motor is installed on the adjusting assembly, and the adjusting assembly is used to drive the driving motor to approach and move away from the speed reducer. The speed reducer is provided with a cooling channel in fluid communication with a cooling oil pump. The heat-insulating cover comprises a first heat-insulating cover and a second heat-insulating cover arranged in sequence from front to back, the heat dissipation openings are arranged on the second heat-insulating cover, the double-head fan is installed at the bottom of the second heat-insulating cover, and the plurality of air outlet pipes are installed on the second heat-insulating cover, the heat dissipation openings correspond to the positions of the double-head fan. The temperature measuring element is a PT100 platinum resistance, and the pressure measuring element is a 1 / 2-20UNF pressure sensor. The plurality of heating rings are all ceramic heating rings. The production equipment further comprises a rack and a plurality of support frames, the barrel, the speed reducer, the heat-insulating cover, the double-head fan and the measuring mechanism are all installed on the rack, the plurality of support frames are installed on the rack at intervals from front to back, and the barrel is installed on the plurality of support frames.

2. The production apparatus according to claim 1, characterized by ​ 3. The production apparatus according to claim 1, characterized by ​ 4. The production apparatus according to claim 1, characterized by ​ 5. The production apparatus according to claim 4, characterized by ​ 6. The production apparatus according to claim 4, characterized by ​ 7. The production apparatus according to claim 1, characterized by ​ 8. The production apparatus according to claim 1, characterized by ​ 9. The production apparatus according to claim 1, wherein ​ 10. The production apparatus according to claim 1, characterized by ​

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