Twin-screw extrusion equipment for PE plastic processing

Abstract

The utility model discloses double-screw extrusion equipment for PE plastic processing, and relates to the technical field of PE plastic processing, the double-screw extrusion equipment comprises a base station, the lower side of the base station is fixedly connected with a support frame, the position, close to the left side, of the upper side of the base station is fixedly connected with a motor, and the output end of the motor is fixedly connected with a gear box; and the output end of the gearbox is fixedly connected with two screw mechanisms which are symmetrically distributed front and back, a material injection opening is formed in the position, close to the left side, of the upper side of the base table, and a discharging opening is formed in the position, close to the right side, of the lower side of the base table. According to the double-screw extrusion equipment for PE plastic processing, the standard knots with different outer side threads are adopted and then are arranged on the transmission rod in a sleeving mode, so that the integrated screws can be divided into a plurality of units, when part of the units are damaged, the units can be replaced, the maintenance cost is reduced, meanwhile, each standard knot can be independently produced and manufactured, and the production cost is reduced. And the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PE plastic processing, in particular to a twin-screw extruder device for PE plastic processing. Background Art

[0002] Twin-screw extruders for PE plastics are highly efficient and widely used in the production of various plastic products, including pipes, plates, sheets, and films. Twin-screw extruders use two parallel screws to shear, stir, and compress the material within the barrel, thereby plasticizing and extruding the material.

[0003] The existing technology has the following problems:

[0004] Existing extrusion equipment mostly uses integrated screws, which means that if these screws are damaged in certain parts, they need to be replaced as a whole, which has high maintenance costs. At the same time, there are different rubber threads on the screws, which makes the production cost of integrated manufacturing high. Utility Model Content

[0005] The utility model provides a twin-screw extruder for PE plastic processing, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A twin-screw extruder for PE plastic processing comprises a base, a support frame is fixedly connected to the lower side of the base, a motor is fixedly connected to the upper side of the base near the left side, the output end of the motor is fixedly connected to a gear box, and the output end of the gear box is fixedly connected to two screw mechanisms symmetrically distributed front and back, an injection port is opened on the upper side of the base near the left side, and a discharge port is opened on the lower side of the base near the right side.

[0008] Preferably, the screw mechanism includes a transmission rod, the left end of the transmission rod is fixedly connected to the output end of the gear box, and the outer side of the transmission rod is movably sleeved on the inner side of the base, the outer side of the transmission rod is movably sleeved with several laterally distributed standard sections, the left ends of several standard sections are fixedly connected with several annularly distributed positioning blocks, and the outer side of the positioning block is movably sleeved in the positioning groove opened on the right side of the adjacent standard section.

[0009] Preferably, a fixed tube is movably connected to the outer side of the transmission rod near the right end, a threaded rod is fixedly connected to the axis of the right end of the transmission rod, the outer side of the threaded rod is threadedly connected to a threaded sleeve, and the threaded sleeve is located on the right side of the fixed tube, and a number of annularly distributed clamping blocks are fixedly connected to the inner right side surface of the fixed tube near the outer edge, and the outer side of the clamping block is movably connected to the right side slot of the transmission rod.

[0010] Preferably, the outer side of the right side convex ring of the fixed tube is movably connected with a limiting sleeve, and a number of annularly distributed limiting rods are fixedly connected to the right side of the fixed tube near the edge, and the outer side of the limiting rods is movably connected to the side wall of the limiting sleeve, and the outer sides of several of the limiting rods are movably connected with springs, and the springs are located on the right side of the limiting sleeve, and a number of annularly distributed balls are movably connected to the inner side wall of the right side convex ring of the fixed tube, and the outer side of the threaded rod is rotatably connected with a rotating sleeve, and the outer side of the rotating sleeve is movably connected to the inner side of the right side convex ring of the threaded rod, and the outer side of the ball away from the limiting sleeve is movably connected to the ball groove opened on the outer side of the rotating sleeve near the left position.

[0011] Preferably, a plurality of annularly distributed limiting strips are fixedly connected to the outer side of the rotating sleeve, and the outer side of the limiting strips is movably sleeved in the limiting groove inside the convex ring on the right side of the threaded rod.

[0012] Preferably, a rubber pad is fixedly connected to the left end of the fixing tube, and the left side of the rubber pad is fitted together with the right side of the rightmost standard section.

[0013] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0014] 1. The utility model provides a twin-screw extruder for PE plastic processing, which adopts the combination of threaded rod, threaded sleeve, positioning block, transmission rod, standard section, fixed tube and rubber pad. By adopting standard sections with different outer threads and then sleeved on the transmission rod, the integrated screw can be divided into multiple units. When some units are damaged, they can be replaced, which reduces maintenance costs. At the same time, each standard section can be manufactured separately, which reduces production costs.

[0015] 2. The utility model provides a twin-screw extruder for PE plastic processing, which adopts the cooperation of a transmission rod, a standard section, a fixed tube, a threaded rod, a threaded sleeve, a limiting sleeve, a limit rod, a spring, a ball, a rotating sleeve, a limiting strip, a rubber pad and a clamping block. The restriction of the limiting sleeve and the ball keeps the position of the rotating sleeve unchanged, and the threaded sleeve cannot slide on its own from the threaded rod, so that the whole is in a fixed state, avoiding the problem of loosening of the fixing of the fixed tube to the standard section due to vibration of the whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3It is a partial cross-sectional three-dimensional structural diagram of the screw mechanism of the present invention;

[0019] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the fixed pipe portion of the utility model;

[0020] Figure 5 It is a partial cross-sectional three-dimensional structural diagram of the threaded sleeve part of the utility model.

[0021] In the figure: 1. Base; 2. Support frame; 3. Motor; 4. Gearbox; 5. Screw mechanism; 51. Transmission rod; 52. Standard section; 53. Fixed tube; 54. Threaded rod; 55. Threaded sleeve; 56. Limiting sleeve; 57. Limiting rod; 58. Spring; 59. Ball; 510. Rotating sleeve; 511. Limiting bar; 512. Rubber pad; 513. Block; 514. Positioning block; 6. Injection port; 7. Discharge port. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 、 Figure 2 As shown, a twin-screw extruder equipment for PE plastic processing includes a base 1, a support frame 2 is fixedly connected to the lower side of the base 1, a motor 3 is fixedly connected to the upper side of the base 1 near the left side, the output end of the motor 3 is fixedly connected to a gear box 4, and the output end of the gear box 4 is fixedly connected to two screw mechanisms 5 symmetrically distributed front and back, an injection port 6 is opened on the upper side of the base 1 near the left side, and a discharge port 7 is opened on the lower side of the base 1 near the right side.

[0024] It should be noted that the motor 3 drives the internal gears of the gear box 4 to operate, and the gear box 4 drives the two screw mechanisms 5 to rotate.

[0025] like Figure 3 As shown, the screw mechanism 5 includes a transmission rod 51, the left end of the transmission rod 51 is fixedly connected to the output end of the gear box 4, and the outer side of the transmission rod 51 is movably sleeved on the inner side of the base 1, and the outer side of the transmission rod 51 is movably sleeved with a number of laterally distributed standard sections 52, and the left ends of the several standard sections 52 are fixedly connected with a number of annularly distributed positioning blocks 514, and the outer side of the positioning block 514 is movably sleeved in the positioning groove opened on the right side of the adjacent standard section 52.

[0026] It should be noted that the number and shape of the positioning blocks 514 on each standard section 52 are different, so as to achieve the purpose of quickly identifying the installation order of each standard section 52. The transmission rod 51 is used to drive the standard section 52 to rotate.

[0027] like Figure 4 As shown, a fixed tube 53 is movably connected to the outer side of the transmission rod 51 near the right end, a threaded rod 54 is fixedly connected to the axis of the right end of the transmission rod 51, and a threaded sleeve 55 is threadedly connected to the outer side of the threaded rod 54, and the threaded sleeve 55 is located on the right side of the fixed tube 53. A number of annularly distributed clamping blocks 513 are fixedly connected to the inner right side surface of the fixed tube 53 near the outer edge, and the outer side of the clamping block 513 is movably connected to the right side clamping groove of the transmission rod 51.

[0028] It should be noted that the fixing tube 53 and the threaded sleeve 55 cooperate to fix the standard section 52 to prevent the standard section 52 from falling off the transmission rod 51, and the block 513 is used to limit the fixing tube 53 so that it cannot rotate relative to the transmission rod 51.

[0029] like Figure 5 As shown, the outer side of the right side convex ring of the fixed tube 53 is movably connected with a limiting sleeve 56, and a number of annularly distributed limiting rods 57 are fixedly connected to the right side of the fixed tube 53 near the edge, and the outer side of the limiting rods 57 is movably connected to the side wall of the limiting sleeve 56. The outer sides of the number of limiting rods 57 are movably connected with springs 58, and the springs 58 are located on the right side of the limiting sleeve 56. The inner side of the side wall of the right side convex ring of the fixed tube 53 is movably connected with a number of annularly distributed balls 59, and the outer side of the threaded rod 54 is rotatably connected with a rotating sleeve 510, and the outer side of the rotating sleeve 510 is movably connected to the inner side of the right side convex ring of the threaded rod 54. The outer side of the ball 59 away from the limiting sleeve 56 is movably connected in the ball groove opened on the outer side of the rotating sleeve 510 near the left position.

[0030] It should be noted that when the limiting sleeve 56 is located outside the convex ring, the ball 59 is fixed, but the ball 59 is stuck in the ball groove, so that the rotating sleeve 510 is fixed and the threaded sleeve 55 cannot rotate on the threaded rod 54 to drive the rotating sleeve 510 to move left and right, pushing the limiting sleeve 56 so that the limiting sleeve 56 is separated from the outside of the ball 59, causing the ball 59 to move, so that the threaded sleeve 55 can drive the rotating sleeve 510 to move.

[0031] like Figure 5 As shown, a plurality of annular limiting bars 511 are fixedly connected to the outer side of the rotating sleeve 510 , and the outer side of the limiting bar 511 is movably sleeved in the limiting groove inside the right convex ring of the threaded rod 54 .

[0032] It should be noted that the limiting strip 511 is used to position the state of the rotating sleeve 510 so that the ball groove outside the rotating sleeve 510 can be aligned with the ball 59 .

[0033] like Figure 4 As shown, the left end of the fixing tube 53 is fixedly connected with a rubber pad 512 , and the left side of the rubber pad 512 is fitted together with the right side of the rightmost standard section 52 .

[0034] It should be noted that after the threaded sleeve 55 is installed in place, the rubber pad 512 is in a compressed state, so that all the standard sections 52 fit tightly together.

[0035] The working principle of the present invention is as follows: first, the number and shape of the positioning blocks 514 on each standard section 52 are different, so as to achieve the purpose of quickly identifying the installation order of each standard section 52. The transmission rod 51 is used to drive the standard section 52 to rotate. The fixing tube 53 and the threaded sleeve 55 cooperate to fix the standard section 52 to prevent the standard section 52 from falling off the transmission rod 51. The clamping block 513 is used to limit the fixing tube 53 so that it cannot rotate relative to the transmission rod 51. After the threaded sleeve 55 is installed in place, the rubber pad 512 is in a compressed state, so that all the standard sections 52 fit tightly together. By adopting standard sections 52 with different outer threads and then sleeved on the transmission rod 51, the integrated screw can be divided into multiple units. When some units are damaged, they can be replaced, which reduces maintenance costs. At the same time, each standard section 52 can be manufactured separately. The production cost is reduced. Finally, when the limiting sleeve 56 is located outside the convex ring, the ball 59 is fixed, but the ball 59 is stuck in the ball groove, so that the rotating sleeve 510 is fixed and the threaded sleeve 55 cannot rotate on the threaded rod 54 to drive the rotating sleeve 510 to move left and right, pushing the limiting sleeve 56, so that the limiting sleeve 56 is separated from the outside of the ball 59, so that the ball 59 can move, so that the threaded sleeve 55 can drive the rotating sleeve 510 to move, and the limit strip 511 is used to position the state of the rotating sleeve 510, so that the ball groove outside the rotating sleeve 510 can be aligned with the ball 59. Through the restriction of the limiting sleeve 56 and the ball 59, the position of the rotating sleeve 510 remains unchanged, and the threaded sleeve 55 cannot slide from the threaded rod 54 by itself, so that the whole is in a fixed state, avoiding the problem of loosening of the fixation of the fixed tube 53 to the standard section 52 due to vibration of the whole.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A twin-screw extruder for PE plastic processing, comprising a base (1), characterized in that: The lower side of the base (1) is fixedly connected to a support frame (2); the upper side of the base (1) is fixedly connected to a motor (3) near the left side; the output end of the motor (3) is fixedly connected to a gear box (4); the output end of the gear box (4) is fixedly connected to two screw mechanisms (5) symmetrically distributed front and back; an injection port (6) is provided on the upper side of the base (1) near the left side, and a discharge port (7) is provided on the lower side of the base (1) near the right side; The screw mechanism (5) comprises a transmission rod (51), the left end of the transmission rod (51) is fixedly connected to the output end of the gear box (4), and the outer side of the transmission rod (51) is movably sleeved on the inner side of the base (1), the outer side of the transmission rod (51) is movably sleeved with a plurality of laterally distributed standard sections (52), the left ends of the plurality of standard sections (52) are fixedly connected to a plurality of annularly distributed positioning blocks (514), and the outer side of the positioning block (514) is movably sleeved in a positioning groove provided on the right side of an adjacent standard section (52).

2. A twin-screw extruder for PE plastic processing according to claim 1, characterized in that: A fixed tube (53) is movably sleeved on the outer side of the transmission rod (51) near the right end, a threaded rod (54) is fixedly connected to the axis of the right end of the transmission rod (51), the outer side of the threaded rod (54) is threadedly connected to a threaded sleeve (55), and the threaded sleeve (55) is located on the right side of the fixed tube (53), and a plurality of annularly distributed clamping blocks (513) are fixedly connected to the inner right side surface of the fixed tube (53) near the outer edge, and the outer side of the clamping blocks (513) is movably sleeved in the right side clamping groove of the transmission rod (51).

3. A twin-screw extruder for PE plastic processing according to claim 2, characterized in that: The outer side of the right convex ring of the fixed tube (53) is movably connected to a limiting sleeve (56), and the right side of the fixed tube (53) is fixedly connected to a plurality of annularly distributed limiting rods (57) near the edge. The outer side of the limiting rods (57) is movably connected to the side wall of the limiting sleeve (56). The outer sides of the plurality of limiting rods (57) are movably connected to springs (58), and the springs (58) are located on the right side of the limiting sleeve (56). The inner side of the side wall of the right convex ring of the fixed tube (53) is movably connected to a plurality of annularly distributed balls (59). The outer side of the threaded rod (54) is rotatably connected to a rotating sleeve (510), and the outer side of the rotating sleeve (510) is movably connected to the inner side of the right convex ring of the threaded rod (54). The outer side of the ball (59) away from the limiting sleeve (56) is movably connected to a ball groove opened on the outer side of the rotating sleeve (510) near the left position.

4. The twin-screw extruder for PE plastic processing according to claim 3, characterized in that: The outer side of the rotating sleeve (510) is fixedly connected to a plurality of annularly distributed limiting bars (511), and the outer side of the limiting bars (511) is movably sleeved in the limiting groove inside the right convex ring of the threaded rod (54).

5. The twin-screw extruder for PE plastic processing according to claim 2, characterized in that: The left end of the fixed tube (53) is fixedly connected to a rubber pad (512), and the left side of the rubber pad (512) is fitted together with the right side of the rightmost standard section (52).

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