Automatic cutting device for polyphenylene sulfide plastic processing

Abstract

The application relates to an automatic cutting device for polyphenylene sulfide plastic processing applied to the field of cutting devices, PPS materials are extruded in the form of a circular tube, are sleeved on front support columns and rear support columns, and continuous cutting is realized through the setting of a first cutting knife and a second cutting knife which rotate in opposite directions synchronously, so that the PPS materials and the cutting knives are uniformly stressed at various positions in the cutting process, the stability and the cutting efficiency of the cutting process are effectively improved, a driving motor, an upper rotating shaft, a lower rotating shaft and a driving gear are arranged in the device, so that the inner rotating tube and the outer rotating tube can obtain rotary power in opposite directions, the first cutting knife and the second cutting knife are ensured to stably and efficiently cut PPS spiral strips in opposite directions, and the cutting effect and the size precision are further ensured, the application realizes efficient and stable continuous cutting through structural design innovation, and solves the problems of low efficiency, poor precision, material waste and uneven tool wear in the traditional PPS plastic cutting process.

Description

TECHNICAL FIELD

[0001] The application relates to an automatic cutting device, in particular to an automatic cutting device for polyphenylene sulfide plastic processing. BACKGROUND

[0002] Polyphenylene sulfide plastic is abbreviated as PPS, has excellent high-temperature resistance, corrosion resistance and mechanical properties, and is widely used in the fields of electronics, electrical appliances and automobiles, and the like, and in the forming and processing process of the PPS, the extruded PPS material is often cut into a specific shape for subsequent use.

[0003] A waste plastic particle regeneration and granulation cutting device is disclosed in Chinese Patent Application No. CN112297276A, which can extrude and convey the plastic strip forward through the cooperation of the extrusion roller and the conveying belt, can extrude and convey the plastic strip at the same time, drives multiple cutting blades to cut the plastic strip through the cutting roller, and the cut plastic enters the collection box.

[0004] The commonly used cutting method at present is mainly to extrude the PPS material into a long strip, and then use fixed cutters or rotary cutters for segmented cutting. However, due to the dispersed arrangement of the PPS long strip at multiple positions in the traditional cutting process, the load received by the cutting cutter at different positions is uneven, which easily leads to uneven wear of the cutting cutter, low cutting precision and low cutting efficiency. In addition, the material is unevenly stressed in the cutting process, which easily causes cutting deviation and broken material, affecting the PPS yield and subsequent use effect. SUMMARY

[0005] To solve the above problems, the application provides an automatic cutting device for polyphenylene sulfide plastic processing, which comprises a mounting box, the inner wall of the mounting box is sequentially fixedly connected with a first supporting ring, a second supporting ring and a third supporting ring from left to right, the inner walls of the first supporting ring, the second supporting ring and the third supporting ring are respectively rotationally connected with an outer rotating tube, a middle rotating tube and an inner rotating tube, the side wall of the mounting box is fixedly connected with a core rod, the outer rotating tube is sleeved outside the middle rotating tube, the middle rotating tube is sleeved outside the inner rotating tube, the inner rotating tube is sleeved outside the core rod, the central axes of the outer rotating tube, the middle rotating tube, the inner rotating tube and the core rod are the same, one end of the middle rotating tube is fixedly connected with a rear supporting column, one end of the core rod is fixedly connected with a front supporting column, one end of the inner rotating tube is fixedly connected with a plurality of uniformly distributed outer cutter arms, the outer cutter arms are located between the front supporting column and the rear supporting column, one end of the outer cutter arm is fixedly connected with a first cutting knife and the first cutting knife is attached to the front supporting column, one end of the outer rotating tube is fixedly connected with a plurality of uniformly distributed inner cutter arms, one end of the inner cutter arm is fixedly connected with a second cutting knife, and the second cutting knife is attached to one end of the rear supporting column.

[0006] As a further improvement of the present application, the outer wall of the outer rotating pipe, the middle rotating pipe and the inner rotating pipe is fixedly connected with the first gear ring, the second gear ring and the third gear ring respectively, the inner wall of the mounting box is fixedly connected with the upper rotating shaft and the lower rotating shaft, and the two ends of the upper rotating shaft and the lower rotating shaft are fixedly connected with the upper gear and the lower gear respectively.

[0007] As a further improvement of the present application, the inner wall of the mounting box is fixedly connected with the driving motor, the output end of the driving motor is fixedly connected with the driving gear, the two upper gears are meshed with the first gear ring and the driving gear respectively, and the two lower gears are meshed with the third gear ring and the driving gear respectively.

[0008] As a further improvement of the present application, the upper gear and the lower gear are located on the upper side and the lower side of the driving gear respectively.

[0009] As a further improvement of the present application, the outer wall of the mounting box is fixedly connected with the extension ring, one end of the extension ring is fixedly connected with the front sheath and the rear sheath, and the front sheath and the rear sheath are sleeved on the outer side of the front support column and the rear support column respectively.

[0010] As a further improvement of the present application, the inner wall of the mounting box is fixedly connected with the conveying motor, the output end of the conveying motor is fixedly connected with the conveying gear, the conveying gear is meshed with the second gear ring, and the outer wall of the rear support column is fixedly connected with the spiral blade.

[0011] As a further improvement of the present application, the inner wall of the extension ring is fixedly connected with a plurality of uniformly distributed outer arms, and the output end of the outer arm is fixedly connected with the outer conveying wheel.

[0012] As a further improvement of the present application, one end of the front support column is fixedly connected with a plurality of uniformly distributed inner arms, and the output end of the inner arm is fixedly connected with the inner conveying wheel.

[0013] In summary, the automatic cutting device for polyphenylene sulfide plastic processing provided by the present application can realize continuous cutting by extruding PPS material in the form of a circular pipe, sleeving the circular pipe on the front support column and the rear support column, and arranging the first cutting knife and the second cutting knife to rotate in opposite directions synchronously, so that the PPS material and the cutting knife are evenly stressed at each part during the cutting process, and the stability and the cutting efficiency of the cutting process are effectively improved.

[0014] By arranging the driving motor, the upper rotating shaft, the lower rotating shaft and the driving gear in the device, the inner rotating pipe and the outer rotating pipe can obtain rotating power in opposite directions, so that the first cutting knife and the second cutting knife can stably and efficiently cut the PPS spiral strip in opposite directions, and the cutting effect and the size precision are further ensured.

[0015] By setting the conveying motor and the spiral conveying rod structure, the spiral conveying rod is matched with the PPS spiral strip, the PPS spiral strip can be stably conveyed and clamped in the cutting process, material shaking in the cutting process is avoided, cutting stability is improved, subsequent cutting is ensured to be a uniform size rhombus piece, and material utilization is improved.

[0016] To sum up, the application realizes efficient and stable continuous cutting through structural design innovation, solves the problems of low efficiency, poor precision, material waste and uneven tool wear in the traditional PPS plastic cutting process, and is suitable for mass processing of PPS materials. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a front view of the whole in the first embodiment of the application;

[0018] Figure 2 is a front view of the installation box in the second embodiment of the application;

[0019] Figure 3 is a front view of the front support column and the rear support column in the first and second embodiments of the application;

[0020] Figure 4 is a perspective view of the front sheath and the rear sheath in the second embodiment of the application;

[0021] Figure 5 is a perspective view of the rear sheath in the second embodiment of the application;

[0022] Figure 6 is a perspective view of the rear support column in the second embodiment of the application;

[0023] Figure 7 is a side view of the second cutting knife in the first and second embodiments of the application;

[0024] Figure 8 is a side view of the first cutting knife in the first and second embodiments of the application.

[0025] Explanation of reference numerals in the drawings:

[0026] 1, mounting box; 2, first support ring; 201, outer rotating tube; 3, second support ring; 301, middle rotating tube; 4, third support ring; 401, inner rotating tube; 5, core rod; 6, outer cutter arm; 601, first cutting knife; 7, inner cutter arm; 701, second cutting knife; 8, front support column; 9, rear support column; 901, spiral blade; 10, first gear ring; 1001, second gear ring; 1002, third gear ring; 11, upper rotating shaft; 1101, upper gear; 12, lower rotating shaft; 1201, lower gear; 13, driving motor; 1301, driving gear; 14, extension ring; 15, front protective sleeve; 16, rear protective sleeve; 17, conveying motor; 1701, conveying gear; 18, outer support arm; 1801, outer conveying wheel; 19, inner support arm; 1901, inner conveying wheel. DETAILED DESCRIPTION

[0027] Two embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] First embodiment:

[0029] Figure 1 、 Figure 3 and Figures 7-8 An automatic cutting device for processing polyphenylene sulfide plastic is shown, which comprises a mounting box 1, the inner wall of the mounting box 1 is sequentially fixedly connected from left to right with a first support ring 2, a second support ring 3 and a third support ring 4, the inner walls of the first support ring 2, the second support ring 3 and the third support ring 4 are respectively rotatably connected with an outer rotating tube 201, a middle rotating tube 301 and an inner rotating tube 401, the side wall of the mounting box 1 is fixedly connected with a core rod 5, the outer rotating tube 201 is sleeved outside the middle rotating tube 301, the middle rotating tube 301 is sleeved outside the inner rotating tube 401, the inner rotating tube 401 is sleeved outside the core rod 5, the center axes of the outer rotating tube 201, the middle rotating tube 301, the inner rotating tube 401 and the core rod 5 are the same, one end of the middle rotating tube 301 is fixedly connected with a rear support column 9, one end of the core rod 5 is fixedly connected with a front support column 8, one end of the inner rotating tube 401 is fixedly connected with a plurality of evenly distributed outer cutter arms 6, the outer cutter arms 6 are located between the front support column 8 and the rear support column 9, one end of the outer cutter arms 6 is fixedly connected with a first cutting knife 601 and the first cutting knife 601 is attached to the front support column 8, one end of the outer rotating tube 201 is fixedly connected with a plurality of evenly distributed inner cutter arms 7, one end of the inner cutter arms 7 is fixedly connected with a second cutting knife 701, and the second cutting knife 701 is attached to one end of the rear support column 9.

[0030] When PPS is extruded, it needs to be matched with a round pipe extruder to make the extrusion of PPS into a round pipe shape, and then the PPS round pipe is sleeved on the front support column 8 and the rear support column 9, and the PPS round pipe continuously moves from the front support column 8 to the rear support column 9.

[0031] The inner rotating tube 401 is started to rotate, and the first cutting knife 601 is driven to rotate forward when the inner rotating tube 401 rotates, and the PPS is cut into PPS spiral strips when the first cutting knife 601 rotates forward, and the rear support column 9 is also a PPS spiral strip. The outer rotating tube 201 is started to rotate, and the second cutting knife 701 is driven to rotate reversely when the outer rotating tube 201 rotates, and the PPS spiral strip is cut into PPS rhombus pieces at this time, and the processing and cutting of PPS are completed.

[0032] Through the above setting, the PPS circular tube is extruded by the circular tube extruder, and the extrusion efficiency is greater than that of the traditional PPS long strip under the condition of the same cross-sectional area or the same speed. The first cutting knife 601 and the second cutting knife 701 can continuously cut during cutting. Since the PPS of the circular tube is uniform at each part, the stress of each part is uniform during cutting, which not only improves the stability of PPS cutting, but also improves the efficiency of PPS cutting.

[0033] The second embodiment is as follows:

[0034] Figures 2-8 An automatic cutting device for processing polyphenylene sulfide plastic is shown. Different from the first embodiment, the outer walls of the outer rotating tube 201, the middle rotating tube 301 and the inner rotating tube 401 are respectively fixedly connected with the first gear ring 10, the second gear ring 1001 and the third gear ring 1002. The inner wall of the mounting box 1 is fixedly connected with the upper rotating shaft 11 and the lower rotating shaft 12. The two ends of the upper rotating shaft 11 and the two ends of the lower rotating shaft 12 are respectively fixedly connected with the upper gear 1101 and the lower gear 1201. The inner wall of the mounting box 1 is fixedly connected with the driving motor 13. The output end of the driving motor 13 is fixedly connected with the driving gear 1301. The two upper gears 1101 are respectively engaged with the first gear ring 10 and the driving gear 1301. The two lower gears 1201 are respectively engaged with the third gear ring 1002 and the driving gear 1301. The upper gear 1101 and the lower gear 1201 are respectively located on the upper side and the lower side of the driving gear 1301.

[0035] Through the above setting, the driving motor 13 drives the lower gear 1201 to rotate forward when the driving motor 13 is started, and the inner rotating tube 401 is driven to rotate forward by the third gear ring 1002 when the lower gear 1201 rotates forward, and the first cutting knife 601 is driven to rotate forward to cut the PPS when the inner rotating tube 401 rotates forward.

[0036] The upper gear 1101 is driven to rotate reversely at the same time when the driving motor 13 is started, and the outer rotating tube 201 is driven to rotate reversely by the first gear ring 10 when the upper gear 1101 rotates reversely, and the second cutting knife 701 is driven to rotate reversely to cut the PPS when the outer rotating tube 201 rotates reversely.

[0037] Through the above setting, the driving motor 13 can provide opposite rotating force for the first cutting knife 601 and the second cutting knife 701.

[0038] The outer wall of the mounting box 1 is fixedly connected with an extension ring 14, one end of the extension ring 14 is fixedly connected with a front sheath 15 and a rear sheath 16, and the front sheath 15 and the rear sheath 16 are respectively sleeved on the outer sides of the front support column 8 and the rear support column 9.

[0039] Through the above setting, the front sheath 15 can limit the PPS round pipe on the front support column 8, and the rear sheath 16 can limit the PPS spiral strip on the rear support column 9, so that the first cutting knife 601 and the second cutting knife 701 are more stable during cutting.

[0040] The inner wall of the mounting box 1 is fixedly connected with a conveying motor 17, the output end of the conveying motor 17 is fixedly connected with a conveying gear 1701, the conveying gear 1701 is engaged with the second gear ring 1001, and the outer wall of the rear support column 9 is fixedly connected with a spiral blade 901.

[0041] Through the above setting, the rear support column 9 and the spiral blade 901 can form a spiral conveying rod, the spiral conveying rod is matched with the PPS spiral strip, the conveying motor 17 can drive the spiral conveying rod to rotate through the conveying gear 1701 and the second gear ring 1001, when the spiral conveying rod rotates, the PPS spiral strip can be driven to move towards the direction of the inner arm 7, the PPS spiral strip on the rear support column 9 is clamped and transported, the movement of the PPS spiral strip is more stable, and the cutting effect of the second cutting knife 701 is ensured.

[0042] The inner wall of the extension ring 14 is fixedly connected with a plurality of uniformly distributed outer arms 18, the output end of the outer arm 18 is fixedly connected with an outer conveying wheel 1801, one end of the front support column 8 is fixedly connected with a plurality of uniformly distributed inner arms 19, and the output end of the inner arm 19 is fixedly connected with an inner conveying wheel 1901.

[0043] Through the above setting, the outer conveying wheel 1801 and the inner conveying wheel 1901 are respectively located at the outer side and the inner side of the PPS round pipe and are attached thereto, when the PPS round pipe moves, the outer conveying wheel 1801 and the inner conveying wheel 1901 can assist in pushing the PPS round pipe to move, so that the first cutting knife 601 can better cut the PPS round pipe.

[0044] The above embodiments adopted by the present application are not limited to the scope of the present application, and various changes made within the knowledge of those skilled in the art without departing from the concept of the present application still fall within the protection scope of the present application.

Claims

1. An automatic cutting device for plastic processing of polyphenylene sulfide, comprising a mounting box (1), characterized in that: The inner wall of the mounting box (1) is sequentially fixedly connected with a first supporting ring (2), a second supporting ring (3) and a third supporting ring (4) from left to right, the inner walls of the first supporting ring (2), the second supporting ring (3) and the third supporting ring (4) are respectively rotationally connected with an outer rotating pipe (201), a middle rotating pipe (301) and an inner rotating pipe (401), the side wall of the mounting box (1) is fixedly connected with a core rod (5), the outer rotating pipe (201) is sleeved outside the middle rotating pipe (301), the middle rotating pipe (301) is sleeved outside the inner rotating pipe (401), the inner rotating pipe (401) is sleeved outside the core rod (5), the central axes of the outer rotating pipe (201), the middle rotating pipe (301), the inner rotating pipe (401) and the core rod (5) are the same, one end of the middle rotating pipe (301) is fixedly connected with a rear supporting column (9), one end of the core rod (5) is fixedly connected with a front supporting column (8), one end of the inner rotating pipe (401) is fixedly connected with a plurality of uniformly distributed outer cutter arms (6), the outer cutter arms (6) are located between the front supporting column (8) and the rear supporting column (9), one end of the outer cutter arm (6) is fixedly connected with a first cutting knife (601) and the first cutting knife (601) is attached to the front supporting column (8), one end of the outer rotating pipe (201) is fixedly connected with a plurality of uniformly distributed inner cutter arms (7), one end of the inner cutter arm (7) is fixedly connected with a second cutting knife (701), and the second cutting knife (701) is attached to one end of the rear supporting column (9).

2. The automatic cutting device for plastic processing of polyphenylene sulfide according to claim 1, characterized in that: The outer walls of the outer rotating pipe (201), the middle rotating pipe (301) and the inner rotating pipe (401) are respectively fixedly connected with a first gear ring (10), a second gear ring (1001) and a third gear ring (1002), the inner wall of the mounting box (1) is fixedly connected with an upper rotating shaft (11) and a lower rotating shaft (12), and the two ends of the upper rotating shaft (11) and the two ends of the lower rotating shaft (12) are respectively fixedly connected with an upper gear (1101) and a lower gear (1201).

3. The automatic cutting device for plastic processing of polyphenylene sulfide according to claim 2, characterized in that: The inner wall of the mounting box (1) is fixedly connected with a driving motor (13), the output end of the driving motor (13) is fixedly connected with a driving gear (1301), the two upper gears (1101) are respectively engaged with the first gear ring (10) and the driving gear (1301), and the two lower gears (1201) are respectively engaged with the third gear ring (1002) and the driving gear (1301).

4. The automatic cutting device for plastic processing of polyphenylene sulfide according to claim 3, characterized in that: The upper gears (1101) and the lower gears (1201) are respectively located on the upper side and the lower side of the driving gear (1301).

5. The automatic cutting device for plastic processing of polyphenylene sulfide according to claim 1, characterized in that: The outer wall of the mounting box (1) is fixedly connected with a stretching ring (14), one end of the stretching ring (14) is fixedly connected with a front protective sleeve (15) and a rear protective sleeve (16), and the front protective sleeve (15) and the rear protective sleeve (16) are respectively sleeved outside the front supporting column (8) and the rear supporting column (9).

6. The automatic cutting device for plastic processing of polyphenylene sulfide according to claim 5, characterized in that: The inner wall of the installation box (1) is fixedly connected with a conveying motor (17), the output end of the conveying motor (17) is fixedly connected with a conveying gear (1701), the conveying gear (1701) is engaged with the second gear ring (1001), and the outer wall of the rear support column (9) is fixedly connected with a spiral blade (901).

7. The automatic cutting device for plastic processing of polyphenylene sulfide according to claim 5, characterized in that: The inner wall of the extension ring (14) is fixedly connected with a plurality of uniformly distributed outer arms (18), and the output end of the outer arm (18) is fixedly connected with an outer conveying wheel (1801).

8. The automatic cutting device for plastic processing of polyphenylene sulfide according to claim 1, characterized in that: One end of the front support column (8) is fixedly connected with a plurality of uniformly distributed inner arms (19), and the output end of the inner arm (19) is fixedly connected with an inner conveying wheel (1901).

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