A device for dismantling the screw of an extruder

Abstract

The present invention provides a device for dismantling the screw rod of an extruder as a whole, and particularly relates to the field of dismantling equipment for extruders. The device comprises a support frame, a threaded rod and a pulling head, wherein the support frame comprises a plurality of connecting rods connected to a shell, the threaded rod is threadedly connected to the support frame, one end of the pulling head is connected to the threaded rod, and the other end is provided with two pulling rods respectively connected to two screw rods, the threaded rod rotates and moves on the support frame, pulling the pulling head and pulling out the screw rod; this structure is supported by the support frame, and the pulling head is pulled by the threaded rod threadedly connected to the support frame, and this structure converts the rotational motion of the threaded rod into axial motion, and pushes out the two screw rods by applying force to the shell, thereby solving the problem of difficulty in manually pulling out the screw rods, avoiding the overall dismantling of the extruder, and saving manpower.

Description

Technical Field

[0001] The present invention relates to the field of extruder disassembly equipment, and in particular to an extruder screw integral disassembly device. Background Art

[0002] When the extruder is in motion, the motor drives the coupling, drives the box through the gear reduction to the output spline teeth, and then drives the spline shaft of the screw assembly through the spline coupling to drive the screw to rotate, such as Figure 1 As shown, the extruder includes a shell 5, and two side-by-side screws 6 are arranged in the shell 5. The screws 6 in the extruder are wearing parts, and the spiral accessories need to be replaced after about one year of use. Or when switching to some special types of feed, the screw 6 is not suitable and the screw assembly needs to be replaced. When the screw 6 needs to be replaced after about one year of operation or in the middle of the operation, the method used is to remove the shell 5. Since the shell 5 is very heavy, the disassembly time is very long and the work intensity is very high. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a device for dismantling the screw of an extruder in its entirety, so as to solve the technical problem of difficulty in dismantling the screw of an extruder in the prior art.

[0004] According to an embodiment of the present invention, a device for dismantling the entire screw of an extruder includes a support frame, a threaded rod and a pulling head. The support frame includes several connecting rods connected to a shell. The threaded rod is threadedly connected to the support frame. One end of the pulling head is connected to the threaded rod, and the other end is provided with two pulling rods respectively connected to two screws. The threaded rod rotates and moves on the support frame, pulling the pulling head and pulling out the screw.

[0005] Compared with the prior art, the present invention has the following beneficial effects:

[0006] This device for dismantling the extruder screw as a whole is supported by a support frame, and a threaded rod threadedly connected to the support frame is used to pull the pulling head. This structure converts the rotational motion of the threaded rod into axial movement. By applying force to the shell, the two screws are ejected, solving the problem of manually pulling out the screws, avoiding the overall disassembly of the extruder, and saving manpower.

[0007] Furthermore, a rotating drum is rotatably connected to the support frame, the rotating drum rotates on the support frame and is restricted from axial movement, and the threaded rod is threadedly connected to the rotating drum.

[0008] Furthermore, the pulling head also includes a connecting plate and a connecting block, two parallel transverse grooves are provided on the connecting plate, one end of the pull rod is provided with a first threaded column connected to the screw rod, and the other end is provided with a second threaded column, the second threaded column passes through the transverse groove and is locked by a nut, and a pulling plate is also fixed on the connecting plate, the pull rod is hinged to the connecting block, and the threaded rod is fixedly connected to the connecting block.

[0009] Furthermore, a T-shaped block is provided at one end of the threaded rod connected to the connecting block, and the connecting block is provided with a non-through T-shaped slot from one side inward, and also includes a locking screw, which passes through the connecting block and blocks the T-shaped block in the T-shaped slot.

[0010] Furthermore, the support frame also includes a support plate, which includes an inner ring, a connecting beam and an outer ring fixedly connected in sequence from the inside to the outside, the rotating drum is rotatably connected to the inner side of the inner ring, and the connecting rods are distributed and connected to the outer ring.

[0011] Furthermore, a third threaded column is provided at one end of the connecting rod, and the third threaded column passes through the outer ring and is locked by a nut.

[0012] Furthermore, a plurality of arcuate grooves are distributed on the outer ring, and the third threaded column slides on the arcuate grooves and is locked by a nut.

[0013] Furthermore, there are four arc-shaped grooves, which are evenly distributed on the outer ring; there are four connecting rods, which are respectively arranged in the four arc-shaped grooves.

[0014] Furthermore, it also includes a rotating handle, which includes a connecting tube, a plurality of pins are provided at one end of the connecting tube, a handle is provided around the connecting tube, and a plurality of sockets that cooperate with the pins are provided on the outside of the rotating tube. The connecting tube is coaxially arranged with the threaded rod to facilitate the threaded rod to pass through the connecting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a device for removing the screw rod of an extruder according to an embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional view of a device for dismantling the screw rod of an extruder according to an embodiment of the present invention;

[0017] In the above drawings: 1. Support frame; 11. Connecting rod; 111. Third threaded column; 12. Support plate; 121. Inner ring; 122. Connecting beam; 123. Outer ring; 1231. Arc groove; 13. Rotating cylinder; 2. Threaded rod; 21. T-shaped block; 3. Pulling head; 31. Pull rod; 311. First threaded column; 312. Second threaded column; 32. Connecting plate; 321. Transverse groove; 322. Pulling plate; 33. Connecting block; 331. T-shaped slot; 332. Locking screw; 4. Rotating handle; 41. Connecting cylinder; 42. Latch; 43. Handle; 5. Housing; 6. Screw. DETAILED DESCRIPTION

[0018] The technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments.

[0019] The embodiment of the present invention provides a device for removing the screw rod of an extruder. Figure 1 and Figure 2As shown, it includes a support frame 1, a threaded rod 2 and a pulling head 3. The support frame 1 is used to be connected to the shell 5 of the extruder. The support frame 1 includes a support plate 12, and the support plate 12 includes an inner ring 121, a connecting beam 122 and an outer ring 123 that are fixedly connected from the inside to the outside. By fixing and welding four connecting beams 122 around the inner ring 121, the support plate 12 forms a disc-shaped and relatively stable support structure. A rotating drum 13 is rotatably connected to the inside of the inner ring 121. The rotating drum 13 rotates in the inner ring 121 and is restricted from axial movement. The connecting rod 11 is distributed and connected to the outer ring 123, and four arc grooves 12 are distributed on the outer ring 123. 31, the arc grooves 1231 are evenly distributed on the outer ring 123, and the connecting rods 11 are provided with four, and the four connecting rods 11 are respectively arranged in the four arc grooves 1231, and the end of the connecting rod 11 is provided with a third threaded column 111, and the third threaded column 111 slides on the arc groove 1231 and is locked by a nut. The other end of the connecting rod 11 is threadedly connected to the housing 5. After the nut for fixing the connecting rod 11 is loosened, the position of the connecting rod 11 can be adjusted to adapt to the corresponding connection part on the housing 5. After the four connecting rods 11 are connected to the housing 5, the connecting rods 11 are fixed by tightening the nuts. At this time, the four connecting rods 11 and the support plate 12 form a fixed Support structure; the pulling head 3 also includes a connecting plate 32 and a connecting block 33, and two transverse grooves 321 are provided in parallel on the connecting plate 32. One end of the pull rod 31 is provided with a first threaded column 311 connected to the screw rod 6, and the other end is provided with a second threaded column 312. The second threaded column 312 passes through the transverse groove 321 and is locked by a nut. The transverse groove 321 is used to adjust the distance between the two pull rods 31 so that the two pull rods 31 on the pulling head 3 can adapt to two screw rods 6 with different spacings. When using the pulling head 3, loosen the nut that fixes the pull rod 31, thread the two pull rods 31 with the two screw rods 6, and then tighten the nut so that the two pull rods 31 are fixed and connected to the two screw rods 6. The connecting plate 32 is also fixed with a pull plate 322, and the pull rod 31 is hinged to the connecting block 33. A T-shaped block 21 is provided at one end of the threaded rod 2, and the connecting block 33 is provided with a non-through T-shaped slot 331 from one side inward, and also includes a locking screw 332, which penetrates the connecting block 33. The locking screw 332 blocks the T-shaped block 21 in the T-shaped slot 331, and is now threadedly connected to the rotating cylinder 13 on the support disk 12. When the rotating cylinder 13 is rotated, the threaded rod 2 is restricted from rotating by the two screws 6, so that the threaded rod 2 moves axially along the inner ring 121 on the support frame 1, and pulls the pulling head 3 and pulls out the screw 6;To facilitate the rotation of the drum 13, a rotating handle 4 is provided. The rotating handle 4 includes a connecting tube 41 with a latch 42 at one end. Handles 43 are provided around the connecting tube 41. A socket that mates with the latch 42 is provided on the outside of the drum 13. The connecting tube 41 is coaxial with the threaded rod 2, facilitating the passage of the threaded rod 2 through the connecting tube 41. When rotating the drum 13, the latch 42 of the rotating handle 43 is inserted into the socket. At this point, by grasping the handle 43, the drum 13 can be easily rotated to withdraw the screw rod 6.

[0020] This device for dismantling the screw rods of an extruder is supported by a support frame 1 and a pulling head 3 is pulled by a threaded rod 2 threadedly connected to the support frame 1. This structure converts the rotational motion of the threaded rod 2 into axial motion. By applying force to the housing 5, the two screw rods 6 are ejected, thus solving the problem of manually pulling out the screw rods 6, avoiding the overall disassembly of the extruder, and saving manpower.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for removing the screw rod of an extruder, characterized by: The invention comprises a support frame (1), a threaded rod (2) and a pulling head (3), wherein the support frame (1) comprises a plurality of connecting rods (11) connected to a shell (5), the threaded rod (2) is threadedly connected to the support frame (1), one end of the pulling head (3) is connected to the threaded rod (2), and the other end is provided with two pulling rods (31) respectively connected to two screw rods (6), the threaded rod (2) rotates and moves on the support frame (1), pulls the pulling head (3) and pulls out the screw rod (6); a rotating drum (13) is rotatably connected to the support frame (1), the rotating drum (13) rotates on the support frame (1) and is restricted from axial movement, and the screw rod (6) is rotated and moved. The threaded rod (2) is threadedly connected to the rotating cylinder (13); the pulling head (3) also includes a connecting plate (32) and a connecting block (33); the connecting plate (32) is provided with two parallel transverse grooves (321); one end of the pull rod (31) is provided with a first threaded column (311) connected to the screw rod (6); the other end is provided with a second threaded column (312); the second threaded column (312) passes through the transverse groove (321) and is locked by a nut; a pulling plate (322) is also fixed on the connecting plate (32); the pull rod (31) is hinged to the connecting block (33); the threaded rod (2) is fixedly connected ... One end of the connecting block (33) is provided with a T-shaped block (21), and the connecting block (33) is provided with a non-through T-shaped slot (331) from one side inward, and further includes a locking screw (332), the locking screw (332) penetrates the connecting block (33), and the locking screw (332) blocks the T-shaped block (21) in the T-shaped slot (331); the support frame (1) also includes a support plate (12), and the support plate (12) includes an inner ring (121), a connecting beam (122) and an outer ring (123) fixedly connected from the inside to the outside in sequence, the rotating drum (13) is rotatably connected to the inner side of the inner ring (121), and the connecting rod (11 ) is distributed and connected to the outer ring (123); a third threaded column (111) is provided at one end of the connecting rod (11), and the third threaded column (111) passes through the outer ring (123) and is locked by a nut; a plurality of arc grooves (1231) are distributed on the outer ring (123), and the third threaded column (111) slides on the arc groove (1231) and is locked by a nut; four arc grooves (1231) are provided, and the arc grooves (1231) are evenly distributed on the outer ring (123), and four connecting rods (11) are respectively arranged in the four arc grooves (1231).

2. The device for removing the screw rod of an extruder according to claim 1, wherein: The invention also includes a rotating handle (4), wherein the rotating handle (4) includes a connecting tube (41), one end of the connecting tube (41) is provided with a plurality of latches (42), a handle (43) is provided around the connecting tube (41), and the outer side of the rotating tube (13) is provided with a plurality of sockets that cooperate with the latches (42), and the connecting tube (41) is coaxially arranged with the threaded rod (2) to facilitate the threaded rod (2) to pass through the connecting tube (41).

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