An extrusion device for producing plastic pallets

Abstract

An extrusion device for producing plastic pallets belongs to the field of plastic extruders, including a plastic extruder body, an extrusion port is provided on the plastic extruder body, a connecting pipe is provided on one side of the extrusion port, a short pipe is provided on one side of the connecting pipe, flanges are provided at both ends of the connecting pipe, one end of the short pipe, and the extrusion port, respectively, and a number of connecting holes are provided on the flanges, a first partition is fixedly installed in the short pipe, and a number of discharge ports are provided on the first partition, two second partitions are fixedly installed in the connecting pipe, and mounting holes corresponding to the discharge ports are provided on the second partitions. The present invention has a simple structure and an ingenious design, and can drive a circular tube to rotate so that it drives a stopper to move along the corresponding first slide groove, and can adjust the position of the stopper to change the size of the discharge port surrounded by the stopper, and the discharge port can be completely closed to reduce heat loss, thereby avoiding material hardening, and the stopper can be replaced by removing the short tube, which is convenient for parts replacement, can meet actual needs, and is suitable for promotion.

Description

Technical Field

[0001] The invention belongs to the field of plastic extruders, in particular to an extrusion device for producing plastic pallets. Background Art

[0002] Plastic is a high molecular compound formed by polymerization of monomers through addition or condensation reactions. It has a medium deformation resistance, between fiber and rubber. It is composed of synthetic resin and additives such as fillers, plasticizers, stabilizers, lubricants, colorants, etc. The main component of plastic is resin. Before plastic pallets are made, they need to be cut into particles of the same size by a granulator. Then, the pressure and shear force generated by the rotation of the screw of the plastic extruder can fully plasticize and evenly mix the materials, and then form them through a die. The size of the discharge hole of the existing extruder is generally fixed and cannot be adjusted according to demand. When the machine is not working, the discharge temperature drops rapidly, causing the material at the outlet to harden, resulting in blockage of the discharge hole and inability to discharge, affecting normal use. Therefore, we designed an extrusion device for the production of plastic pallets with an adjustable discharge hole size and materials that are not easy to harden. Summary of the invention

[0003] The invention provides an extrusion device for producing a plastic pallet, which is used to solve the defects in the prior art.

[0004] The present invention is achieved through the following technical solutions:

[0005] A plastic pallet production extrusion device comprises a plastic extruder body, wherein the plastic extruder body is provided with an extrusion port, a connecting pipe is provided on one side of the extrusion port, a short tube is provided on one side of the connecting pipe, the extrusion port, the connecting pipe and the short tube are connected in sequence by flanges, a first partition is fixedly installed in the short tube, a plurality of discharge ports are provided on the first partition, two second partitions are fixedly installed in the connecting pipe, mounting holes corresponding to the discharge ports are respectively provided on the second partition, a same round tube is rotatably installed in the corresponding two mounting holes, a driving device for driving the round tube to rotate synchronously is provided on the connecting pipe, an adjusting mechanism capable of adjusting the discharge size is respectively provided between the round tube and the corresponding discharge port, the adjusting mechanism comprises a block, each adjusting mechanism is provided with four blocks evenly distributed circumferentially, the four blocks surround a discharge port, two adjacent blocks abut against each other, a slider is fixedly installed on one side of the block facing the first partition, a first slide groove is provided on the first partition corresponding to the slider, the slider is slidably installed in the corresponding first slide groove, a sliding rod is fixedly installed on the other side of the block, a radial slide groove is provided on the round tube corresponding to the sliding rod, and the sliding rod is slidably installed in the corresponding radial slide groove.

[0006] As described above, an extrusion device for producing plastic pallets, the driving device includes gear rings, coaxial gear rings are fixedly installed on the circular tubes, one side of the gear rings in the same vertical row is meshed with a same rack, the rack is fixedly connected to the same mounting plate, a screw is rotatably installed on the mounting plate, the screw is installed on the connecting tube and extends to the outside, a coaxial hand wheel is fixedly installed on the screw, and sliding sleeves are respectively mounted on the racks, and the sliding sleeves are fixedly installed on the second partition.

[0007] As described above, an extrusion device for producing plastic pallets, the block is provided with an inclined surface on one side relative to the round tube, the first nut is installed in cooperation with the thread on the screw rod, a through groove is provided on the connecting tube, the first nut is slidably installed in the through groove, a limiting mechanism for limiting the rotation of the first nut is provided in the through groove, an annular plate is installed on the connecting tube, and the annular plate is elastically connected to the first nut through a spring.

[0008] In the extrusion device for producing plastic pallets as described above, second nuts are fixedly installed on both sides of the annular plate, threaded rods are threadedly installed in the second nuts, the threaded rods are rotatably installed on the connecting pipes through bearings, and handles are fixedly installed on the threaded rods.

[0009] In the extrusion device for producing a plastic pallet as described above, the limiting mechanism includes a limiting block, the limiting blocks are fixedly installed on both sides of the second nut, corresponding limiting grooves are provided in the through groove, and the limiting blocks are slidably installed in the corresponding limiting grooves.

[0010] In the extrusion device for producing a plastic pallet as described above, a vertical rod is fixedly mounted on the mounting plate, and the vertical rod can be in contact with the second nut for cooperation.

[0011] The advantages of the present invention are: the present invention has a simple structure and ingenious design, and can drive the round tube to rotate so as to drive the block to move along the corresponding first slide groove, and can adjust the position of the block to change the size of the discharge hole surrounded by the block, and the discharge hole can be completely closed to reduce heat loss, thereby avoiding material hardening, and the block can be replaced by removing the short tube, which is convenient for replacement of parts, can meet actual needs, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A sectional view of a right side view; Figure 3 yes Figure 1 Left view of Figure 4 It is the right side view of the stopper; Figure 5 It is the left side view of the stopper.

[0014] Figure numerals: 1, extrusion port, 2, connecting tube, 3, short tube, 4, connecting hole, 5, first partition, 6, discharge port, 7, second partition, 8, round tube, 9, stopper, 10, slider, 11, first slide groove, 12, slide rod, 13, radial slide groove, 14, discharge hole, 20, gear ring, 21, rack, 22, mounting plate, 23, screw, 24, handwheel, 25, sleeve, 30, inclined plane, 31, first nut, 32, through groove, 33, annular plate, 34, spring, 40, second nut, 41, threaded rod, 42, handle, 50, limit block, 51, limit slide groove, 60, vertical rod. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] An extrusion device for producing plastic pallets, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, it includes a plastic extruder body, an extrusion port 1 is provided on the plastic extruder body, a connecting pipe 2 is provided on one side of the extrusion port 1, a short tube 3 is provided on one side of the connecting pipe 2, the extrusion port 1, the connecting pipe 2 and the short tube 3 are connected in sequence by flanges, flanges are provided at both ends of the connecting pipe 2, one end of the short tube 3 and the extrusion port 1, respectively, and a number of connecting holes 4 are provided on the flanges, a first baffle 5 is fixedly installed in the short tube 3, and a number of discharge ports 6 are provided on the first baffle 5. In this embodiment, there are two discharge ports 6, and there are three discharge ports 6 in each row, two second baffles 7 are fixedly installed in the connecting pipe 2, and mounting holes corresponding to the discharge ports 6 are respectively provided on the second baffles 7, and the same round tube 8 is rotatably installed in the corresponding two mounting holes, and the two ends of the round tube 8 are rotatably connected to the inner walls of the corresponding mounting holes through sealing bearings, the round tube 8 and the corresponding discharge port 6 are coaxially arranged, a driving device for driving the round tube 8 to rotate synchronously is provided on the connecting pipe 2, and a driving device capable of driving the round tube 8 to rotate synchronously is provided between the round tube 8 and the corresponding discharge port 6. The adjusting mechanism for adjusting the discharge size includes a block 9, each adjusting mechanism is provided with four blocks 9 evenly distributed circumferentially, the four blocks 9 surround a discharge hole 14, two adjacent blocks 9 abut against each other, the two sides of the block 9 are successively fitted with the second partition plate 7 and the first partition plate 5, and the block 9 is fixedly installed with a slider 10 on the side facing the first partition plate 5, a first slide groove 11 is provided on the first partition plate 5 corresponding to the slider 10, and the slider 10 is slidably installed in the corresponding first slide groove 11, the slider 10 is rectangular, and the slider 10 can only slide in the first slide groove 11 and cannot rotate, and a slide rod 12 is fixedly installed on the other side of the block 9, a radial slide groove 13 is provided on the circular tube 8 corresponding to the slide rod 12, and the slide rod 12 is slidably installed in the corresponding radial slide groove 13, the first slide groove 11, the slide rod 12, and the radial slide groove 13 of each adjusting mechanism are evenly distributed circumferentially, the radial slide groove 13 is perpendicular to the axis of the corresponding circular tube 8, and the first slide groove 11 and the corresponding radial slide groove 13 are perpendicular to each other. The present invention has a simple structure and an ingenious design. It can drive the round tube 8 to rotate, so that it drives the block 9 to move along the corresponding first slide groove 11. The position of the block 9 can be adjusted to change the size of the discharge hole 14 surrounded by the block 9, and the discharge hole 14 can be completely closed to reduce heat loss, thereby avoiding material hardening. The block 9 can be replaced by removing the short tube 3, which is convenient for replacement of parts, can meet actual needs, and is suitable for promotion.When using the present invention, align the connecting pipe 2 with the extrusion port 1 on the plastic extruder body, then connect the connecting holes 4 on the corresponding flanges by bolts, then install each group of blocks 9 on the corresponding round tube 8, and install the short tube 3 at the same time, so that the slide bar 12 is located in the radial slide groove 13, the slider 10 is located in the first slide groove 11, and then connect the connecting pipe 2 and the short tube 3 by bolts and flanges, and the device is assembled. When the size of the discharge hole 14 needs to be adjusted, the round tube 8 is driven to rotate by the driving device, and the rotation of the round tube 8 drives the radial slide groove 13 to revolve along the axis of the corresponding round tube 8, and the radial slide groove The inner wall of 13 gives a thrust to the slide bar 12, so that the slide bar 12 drives the stopper 9 to slide along the corresponding first slide groove 11, thereby changing the position of the stopper 9. When the stopper 9 slides and the inner ends of each group of the stoppers 9 are close to each other, the discharge hole 14 surrounded by the stoppers 9 becomes smaller, and vice versa. When the inner ends of the stoppers 9 of each group are against each other, the discharge hole 14 is closed, and the stopper 9 closes the circular tube 8 to separate the material from the outside, reduce heat loss, and avoid material hardening. When disassembly is required, unscrew the bolts, remove the short tube 3 and the connecting tube 2 in turn, and replace the damaged stopper 9 and then assemble it.

[0017] Specifically, if Figure 3 As shown, the driving device described in this embodiment includes a gear ring 20, and the coaxial gear rings 20 are fixedly installed on the circular tube 8, and the same rack 21 is meshed and matched on one side of the gear rings 20 in the same vertical row, and the rack 21 is fixedly connected to the same mounting plate 22, and the mounting plate 22 is rotatably mounted with a screw rod 23, which is mounted on the connecting tube 2 and extends to the outside, and a coaxial hand wheel 24 is fixedly installed on the screw rod 23, and a sliding sleeve 25 is respectively mounted on the rack 21, and the sliding sleeve 25 is fixedly installed on the second partition plate 7. The screw rod 23 is driven to rise or fall by the hand wheel 24, thereby driving the mounting plate 22 and the rack 21 to rise or fall along the sliding sleeve 25, and the sliding sleeve 25 restricts the rack 21 from rotating with the screw rod 23, and the rack 21 moves to drive the gear ring 20 and the circular tube 8 to rotate, thereby realizing the synchronous rotation of the circular tube 8.

[0018] Specifically, Figure 1 , Figure 3 , Figure 5As shown, the block 9 of this embodiment is provided with an inclined surface 30 on one side relative to the circular tube 8, a first nut 31 is threadedly mounted on the screw 23, a through groove 32 is provided on the connecting tube 2, the first nut 31 is slidably mounted in the through groove 32, a limiting mechanism for limiting the rotation of the first nut 31 is provided in the through groove 32, an annular plate 33 is installed on the connecting tube 2, the annular plate 33 is elastically connected to the first nut 31 through a spring 34, the spring 34 is sleeved on the screw 23, one end of the spring 34 is fixedly connected to the first nut 31, and the other end of the spring 34 is fixedly connected to the annular plate 33. When the pressure of the conveyed material on the block 9 increases suddenly, the material gives an impact force to the inclined surface 30, thereby pushing the block 9 to move along the corresponding first chute 11, and the discharge hole 14 surrounded by the block 9 expands. At the same time, the block 9 drives the slide bar 12 to rotate, and the slider 10 gives a thrust to the inner wall of the radial chute 13, thereby pushing the circular tube 8 and the gear ring 20 to rotate, as shown in Figure 4 In the embodiment, the gear ring 20 rotates clockwise. Figure 5 In the embodiment, the gear ring 20 rotates counterclockwise, and the gear ring 20 rotates to drive the rack 21, the mounting plate 22, and the screw 23 to move downward, thereby driving the first nut 31 to slide in the through groove 32, so that the spring 34 is stretched, thereby offsetting the impact force on the stopper 9 and reducing the damage to the stopper 9.

[0019] Further, such as Figure 1 , Figure 3 As shown, the second nuts 40 are fixedly installed on both sides of the annular plate 33 of this embodiment, and the threaded rods 41 are threadedly installed in the second nuts 40. The threaded rods 41 are rotatably installed on the connecting pipe 2 through bearings, and the handles 42 are fixedly installed on the threaded rods 41. The threaded rods 41 are rotated by the handles 42 to drive the second nuts 40 and the annular plate 33 to move upward or downward, thereby adjusting the degree of tension or compression of the spring 34 to achieve different buffering effects for easy use.

[0020] Furthermore, Figure 1 , Figure 3 As shown, the limiting mechanism of this embodiment includes a limiting block 50, and the limiting blocks 50 are fixedly installed on both sides of the second nut 40, and corresponding limiting grooves 51 are provided in the through groove 32, and the limiting blocks 50 are slidably installed in the corresponding limiting grooves 51. The limiting block 50 slides upward or downward in the limiting groove 51, so that the second nut 40 cannot rotate with the threaded rod 41.

[0021] Furthermore, Figure 3As shown, the vertical rod 60 is fixedly installed on the mounting plate 22 of the present embodiment, and the vertical rod 60 can be in contact with the second nut 40. The threaded rod 41 is rotated to drive the annular plate 33 and the vertical rod 60 to move downward until the vertical rod 60 abuts against the second nut 40, and the threaded rod 41 is continuously rotated to make the second nut 40 continue to move downward, so that the lower end of the limit block 50 abuts against the bottom of the limit slot 51. At this time, the second nut 40 cannot move upward or downward, and the state of the spring 34 cannot be changed, and it has no buffering ability at this time.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An extrusion device for producing plastic pallets, comprising a plastic extruder body, wherein the plastic extruder body is provided with an extrusion port (1), a connecting pipe (2) is provided on one side of the extrusion port (1), a short pipe (3) is provided on one side of the connecting pipe (2), the extrusion port (1), the connecting pipe (2) and the short pipe (3) are connected in sequence by flanges, and characterized in that: A first partition (5) is fixedly installed in the short tube (3), and a plurality of discharge ports (6) are provided on the first partition (5). Two second partitions (7) are fixedly installed in the connecting tube (2), and mounting holes corresponding to the discharge ports (6) are respectively provided on the second partitions (7). A same round tube (8) is rotatably installed in the two corresponding mounting holes. A driving device for driving the round tube (8) to rotate synchronously is provided on the connecting tube (2). An adjusting mechanism capable of adjusting the discharge size is respectively provided between the round tube (8) and the corresponding discharge port (6), and the adjusting mechanism comprises a stopper (9). Each adjusting mechanism is provided with a stopper (9). The joint mechanism is provided with four evenly distributed circumferential blocks (9), the four blocks (9) surround a discharge hole (14), two adjacent blocks (9) are abutted against each other, a sliding block (10) is fixedly installed on one side of the block (9) facing the first partition (5), a first sliding groove (11) is provided on the first partition (5) corresponding to the sliding block (10), the sliding block (10) is slidably installed in the corresponding first sliding groove (11), a sliding rod (12) is fixedly installed on the other side of the block (9), a radial sliding groove (13) is provided on the round tube (8) corresponding to the sliding rod (12), and the sliding rod (12) is slidably mounted in the corresponding radial slide groove (13); the driving device comprises a gear ring (20), coaxial gear rings (20) are respectively fixedly mounted on the circular tube (8), one side of the gear rings (20) in the same vertical row is meshed with a same rack (21), the rack (21) is fixedly connected to a same mounting plate (22), a screw rod (23) is rotatably mounted on the mounting plate (22), the screw rod (23) is mounted on the connecting tube (2) and extends to the outside, a coaxial hand wheel (24) is fixedly mounted on the screw rod (23), and a sliding sleeve is respectively mounted on the rack (21) (25), the sliding sleeve (25) is fixedly mounted on the second partition plate (7); the stopper (9) is provided with an inclined surface (30) on one side opposite to the circular tube (8); the first nut (31) is threadedly mounted on the screw rod (23); a through groove (32) is provided on the connecting pipe (2); the first nut (31) is slidably mounted in the through groove (32); a limiting mechanism for limiting the rotation of the first nut (31) is provided in the through groove (32); an annular plate (33) is installed on the connecting pipe (2); the annular plate (33) is elastically connected to the first nut (31) through a spring (34).

2. The extrusion device for producing a plastic pallet according to claim 1, characterized in that: Second nuts (40) are fixedly mounted on both sides of the annular plate (33), threaded rods (41) are threadedly mounted in the second nuts (40), the threaded rods (41) are rotatably mounted on the connecting pipe (2) via bearings, and handles (42) are fixedly mounted on the threaded rods (41).

3. The extrusion device for producing a plastic pallet according to claim 2, characterized in that: The limiting mechanism comprises a limiting block (50), the limiting blocks (50) are fixedly mounted on both sides of the second nut (40), a corresponding limiting sliding groove (51) is provided in the through groove (32), and the limiting block (50) is slidably mounted in the corresponding limiting sliding groove (51).

4. The extrusion device for producing a plastic pallet according to claim 2, characterized in that: A vertical rod (60) is fixedly mounted on the mounting plate (22), and the vertical rod (60) can be in abutment contact with the second nut (40).

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