A polypropylene pipe waste crushing device

Abstract

A polypropylene pipe waste crushing device includes a box with an open top, two crushing rollers rotatably mounted inside the box, symmetrically distributed left and right. A first drive mechanism on the box drives the two crushing rollers to rotate in opposite directions. A discharge port is opened at the bottom of the box. Several support legs are fixedly mounted on the box. The device is characterized by: several crushing toothed rings fixedly mounted on each crushing roller, with the crushing toothed rings on the two crushing rollers staggered; a spiral blade inside the box for cleaning the crushing toothed rings, the spiral blades being fixedly mounted on a coaxial rotating rod; and a second drive mechanism and a third drive mechanism sequentially arranged inside the box. The advantages of this invention are: simple structure, ingenious design, automatic cleaning of the crushing toothed rings by the spiral blades without disassembly, saving time and labor; and normal operation during cleaning, meeting practical needs and suitable for widespread application.

Description

Technical Field

[0001] The invention belongs to the field of waste crushing devices, in particular to a polypropylene pipe waste crushing device. Background Art

[0002] In the production process of polypropylene pipes, a large amount of waste is usually generated due to the need to cut to length and cut the damaged sections at the ends. The waste is either discarded or crushed and returned to the furnace for processing. Before returning the waste to the furnace for processing, the waste needs to be crushed for re-melting. The most commonly used crushing device is a crusher. When the existing crusher crushes the polypropylene pipe, the polypropylene pipe is easy to adhere to the crushing teeth of the crusher. In order to ensure the normal use of the crusher, it is necessary to manually clean it regularly. However, manual cleaning requires the equipment to be disassembled, and the process is time-consuming and labor-intensive, affecting the production process. Therefore, we designed a polypropylene pipe waste crushing device. Summary of the invention

[0003] The invention provides a polypropylene pipe waste crushing device to solve the defects in the prior art.

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

[0005] A polypropylene pipe waste crushing device comprises a box body with an opening at the top, two crushing rollers are rotatably installed in the box body, the crushing rollers are symmetrically distributed on the left and right, a first driving mechanism for driving the two crushing rollers to rotate in opposite directions is provided on the box body, a discharge port is provided at the bottom of the box body, a plurality of supporting legs are fixedly installed on the box body, and the device is characterized in that: a plurality of crushing tooth rings are respectively fixedly installed on the crushing rollers, the crushing tooth rings on the two crushing rollers are staggered, a spiral blade capable of cleaning the crushing tooth rings is provided in the box body, the spiral blade is fixedly installed on a coaxial rotating rod, a second driving mechanism and a third driving mechanism are sequentially provided in the box body, the second driving mechanism can drive the spiral blade to move, and the third driving mechanism can drive the rotating rod to rotate.

[0006] In the above-mentioned polypropylene pipe waste crushing device, a material blocking block is fixedly installed on the inner wall of the box body corresponding to the crushing tooth ring, the material blocking block and the crushing tooth ring are staggered, and the material blocking plates are fixed on the left and right sides of the box body respectively.

[0007] In the polypropylene pipe waste crushing device as described above, the first driving mechanism includes a first motor, the first motor is fixedly mounted on the material baffle plate, a first gear is fixedly mounted on the rotating shaft of the first motor, the rotating shafts on both sides of the crushing roller are rotatably mounted on the box body through bearings, the rotating shaft on the corresponding side of the crushing roller extends out of the box body, and coaxial second gears are fixedly mounted respectively, the two second gears are meshed with each other, and the first gear is meshed with one of the second gears.

[0008] As described above, a polypropylene pipe waste crushing device, the second driving mechanism includes a spring rod, the two ends of the rotating rod are respectively rotatably installed with the spring rod through the shaft seat, the corresponding spiral blades are fixedly installed with the support rod in the box body, the spring rod is respectively rotatably connected with the corresponding support rod through the shaft sleeve, a torsion spring is provided between the shaft sleeve and the support rod, and the sliding rod is respectively fixedly installed on the spring rod, and a special-shaped sliding groove is provided on the inner wall of the box body corresponding to the sliding rod, and the sliding rod is slidably connected with the special-shaped sliding groove.

[0009] In the polypropylene pipe waste crushing device as described above, the third driving mechanism includes a second motor, which is fixedly mounted on the movable end of the spring rod through a support plate, and coaxial helical gears are fixedly mounted on the output shaft of the second motor and the rotating rod respectively, and the two helical gears are meshed with each other.

[0010] In the above-mentioned polypropylene pipe waste crushing device, sleeves are fixedly installed on the shaft sleeves, and the sleeves cover the corresponding torsion springs.

[0011] In the above-mentioned polypropylene pipe waste crushing device, a plurality of slots are provided on the side wall of the box body, and plug rods are inserted into the slots for mating, and the plug rods correspond to the special-shaped slide grooves one by one, and the plug rods extend into the corresponding special-shaped slide grooves.

[0012] The advantages of the present invention are: the present invention has a simple structure and an ingenious design, and can automatically clean the crushing teeth through the spiral blades, without disassembling the equipment, saving time and effort, and the equipment can operate normally during cleaning, can meet actual needs, and is suitable for promotion. When using the present invention, the polypropylene pipe waste to be crushed is put into the opening at the top of the box body, and the crushing roller is driven to rotate by the first driving mechanism, and the rotation of the crushing roller drives the crushing tooth ring to rotate, so that the crushing teeth on the crushing tooth ring squeeze and crush the waste, and the crushed waste will fall from the discharge port at the bottom of the box body for collection and recycling; when the spiral blade cleans the crushing tooth ring, the rotating rod and the spiral blade are driven to rotate by the third driving mechanism, and the spiral blade rotates to scrape off the waste adhering to the inner wall of the groove, and at the same time, the second driving mechanism is used to clean the grooves at different positions on the crushing tooth ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 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.

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A-direction view; Figure 3 yes Figure 1 A top view of Figure 4 yes Figure 1 Partial enlarged view of Ⅰ; Figure 5 yes Figure 2 Ⅱ Partial enlarged view.

[0015] Figure numerals: 1, box body, 2, crushing roller, 3, discharge port, 4, supporting leg, 5, crushing gear ring, 6, groove, 7, spiral blade, 8, rotating rod, 20, material blocking block, 21, material blocking plate, 30, first motor, 31, first gear, 32, second gear, 40, spring rod, 41, support rod, 42, bushing, 43, torsion spring, 44, slide rod, 45, special-shaped slide groove, 50, second motor, 51, bevel gear, 60, sleeve, 70, plug rod. DETAILED DESCRIPTION

[0016] 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.

[0017] A polypropylene pipe waste crushing device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the box body 1 comprises a box body 1 with an opening at the top, two crushing rollers 2 are rotatably installed in the box body 1, the crushing rollers 2 are symmetrically distributed on the left and right, the interior of the crushing rollers 2 is hollow, a first driving mechanism for driving the two crushing rollers 2 to rotate in opposite directions is arranged on the box body 1, a discharge port 3 is arranged at the bottom of the box body 1, and a plurality of supporting legs 4 are fixedly installed on the box body 1, which is characterized in that: a plurality of crushing tooth rings 5 ​​are respectively fixedly installed on the crushing rollers 2, the crushing tooth rings 5 ​​are coaxially arranged with the crushing rollers 2, the inner periphery of the crushing tooth rings 5 ​​is fixedly connected with the outer periphery of the crushing rollers 2, the outer periphery of the crushing tooth rings 5 ​​are respectively uniformly provided with semicircular grooves 6, and two adjacent grooves are The protrusions formed between the grooves 6 are crushing teeth. The corresponding grooves 6 on the same crushing roller 2 are coaxially distributed. The crushing tooth rings 5 ​​on the two crushing rollers 2 are staggered. The box body 1 is provided with a spiral blade 7 that can clean the crushing tooth ring 5. The spiral blade 7 can slide and contact with the inner wall of the groove 6. The spiral blade 7 is fixedly installed on the coaxial rotating rod 8. The inner periphery of the spiral blade 7 is fixedly connected to the inner periphery of the rotating rod 8. The box body 1 is sequentially provided with a second drive mechanism and a third drive mechanism. The second drive mechanism can drive the spiral blade 7 to move, and the third drive mechanism can drive the rotating rod 8 to rotate. The present invention has a simple structure and an ingenious design. It can automatically clean the crushing teeth through the spiral blade 7 without disassembling the equipment, saving time and effort. During cleaning, the equipment can operate normally, can meet actual needs, and is suitable for promotion. When the present invention is used, the polypropylene pipe waste to be crushed is put into the opening at the top of the box body 1, and the crushing roller 2 is driven to rotate by the first driving mechanism. The rotation of the crushing roller 2 drives the crushing tooth ring 5 to rotate, so that the crushing teeth on the crushing tooth ring 5 squeeze and crush the waste, and the crushed waste will fall from the discharge port 3 at the bottom of the box body 1 for collection and recycling; when the spiral blade 7 cleans the crushing tooth ring 5, the third driving mechanism drives the rotating rod 8 and the spiral blade 7 to rotate, and the spiral blade 7 rotates to scrape off the waste adhered to the inner wall of the groove 6, and at the same time, the second driving mechanism is used to clean the grooves 6 at different positions on the crushing tooth ring 5.

[0018] Specifically, if Figure 2 As shown, the inner wall of the box body 1 described in this embodiment is fixedly installed with a blocking block 20 corresponding to the crushing tooth ring 5. The blocking block 20 is fan-shaped, and the inner periphery of the blocking block 20 is in clearance with the outer periphery of the crushing roller 2. The blocking block 20 has different models, and the blocking block 20 and the crushing tooth ring 5 are staggered. The left and right sides of the box body 1 are respectively fixed with blocking plates 21, and the left and right sides of the crushing roller 2 are in sliding contact with the corresponding blocking plates 21 in sequence. The blocking plates 21 are U-shaped. The blocking block 20 and the blocking plate 21 can prevent the waste from falling from the gap between the crushing roller 2 and the inner wall of the box body 1 to the bottom of the box body 1, ensuring that the waste can be crushed.

[0019] Specifically, Figure 1 , Figure 2As shown, the first driving mechanism of this embodiment includes a first motor 30, which is fixedly mounted on the baffle plate 21, and a first gear 31 is fixedly mounted on the rotating shaft of the first motor 30. The rotating shafts on both sides of the crushing roller 2 are respectively rotatably mounted on the box body 1 through bearings, and the rotating shafts of the crushing roller 2 are rotatably connected with the reserved holes on the baffle plate 21 through bearings. The rotating shafts on the corresponding side of the crushing roller 2 extend outside the box body 1, and are respectively fixedly mounted with coaxial second gears 32, and the two second gears 32 are meshed and matched, and the first gear 31 is meshed and matched with one of the second gears 32. Start the first motor 30, and the operation of the first motor 30 drives the first gear 31 to rotate, thereby driving the second gear 32 meshed with it to rotate, and then driving the other second gear 32 to rotate in the opposite direction, and finally driving the two crushing rollers 2 to rotate inward.

[0020] Further, such as Figure 1 , Figure 2 , Figure 4As shown, the second driving mechanism of this embodiment includes a spring rod 40, and the two ends of the rotating rod 8 are respectively rotatably installed with the spring rod 40 through the shaft seat, and the movable end of the spring rod 40 is rotatably connected with the rotating rod 8. The corresponding spiral blade 7 is fixedly installed with a support rod 41 in the box body 1, and the support rod 41 corresponds to the spiral blade 7 one by one. The spring rod 40 is rotatably connected with the corresponding support rod 41 through a shaft sleeve 42, and the fixed end of the spring rod 40 is fixedly connected with the shaft sleeve 42, and the shaft sleeve 42 is sleeved on the support rod 41. A torsion spring 43 is provided between the shaft sleeve 42 and the support rod 41. The torsion spring 43 One end of the torsion spring 43 is fixedly connected to the inner wall of the shaft sleeve 42, and the other end of the torsion spring 43 is fixedly connected to the outer periphery of the support rod 41. The sliding rods 44 are fixedly installed on the spring rods 40 respectively. The sliding rods 44 are fixedly installed on the movable ends of the spring rods 40. A special-shaped sliding groove 45 is provided on the inner wall of the box body 1 corresponding to the sliding rods 44. The sliding rods 44 are slidably connected with the special-shaped sliding groove 45. The special-shaped sliding groove 45 is formed by connecting an arc groove and a U-shaped groove. The arc groove is coaxially arranged with the corresponding crushing roller 2. The sliding rod 44 can first slide along the arc groove under the push of the crushing tooth ring 5, and then slide along the U-shaped groove and then reset. When the crushing roller 2 rotates and drives the crushing tooth ring 5 to rotate, the crushing tooth ring 5 will push the spiral blade 7 to move, so that the spring rod 40 rotates on the support rod 41. At this time, the torsion spring 43 accumulates potential energy, and at the same time, the movable end of the spring rod 40 first slides along the arc groove of the special-shaped slide groove 45 under the restriction of the slide rod 44, and the corresponding elongation of the spring rod 40 is stretched. When the slide rod 44 slides to the connection between the arc groove and the U-shaped groove, the slide rod 44 enters the U-shaped groove of the special-shaped slide groove 45 under the action of the spring rod 40, and then slides under the action of the torsion spring 43, the spring rod 40 is compressed, and finally resets by the elastic force of the spring rod 40, so that the spiral blade 7 contacts the groove 6 on the crushing tooth ring 5 again; when the slide rod 44 slides along the special-shaped slide groove 45, the spiral blade 7 goes through the process of separation, reset, and contact with the crushing tooth ring 5 again, and this process is repeated, and at the same time, the third driving mechanism drives the rotating rod 8 and the spiral blade 7 to rotate, so that the spiral blade 7 cleans the grooves 6 at different positions of the crushing tooth ring 5.

[0021] Furthermore, Figure 2 , Figure 5 As shown, the third driving mechanism of this embodiment includes a second motor 50, which is fixedly mounted on the movable end of the spring rod 40 through a support plate, and the output shaft of the second motor 50 and the rotating rod 8 are respectively fixedly mounted with coaxial helical gears 51, and the two helical gears 51 are meshed and matched. The second motor 50 is controlled to run, and the output shaft of the second motor 50 rotates, and the rotating rod 8 and the spiral blade 7 are driven to rotate through the transmission of the helical gear 51, so that the spiral blade 7 cleans the inner wall of the groove 6.

[0022] Furthermore, Figure 2As shown, sleeves 60 are fixedly mounted on the shaft sleeves 42 of this embodiment, and the sleeves 60 cover the corresponding torsion springs 43. The sleeves 60 can prevent the broken waste from falling onto the torsion springs 43 and affecting the torsion springs 43.

[0023] Furthermore, Figure 2 , Figure 5 As shown, the side wall of the box body 1 of this embodiment is provided with a plurality of slots, and the slots are provided with plug rods 70, which correspond to the special-shaped slide grooves 45 one by one, and the plug rods 70 extend into the corresponding special-shaped slide grooves 45. When the plug rods 70 are inserted into the corresponding special-shaped slide grooves 45, the plug rods 70 can block the slide rod 44, so that the slide rod, the spring rod 40, and the spiral blade 7 cannot be reset, and the spiral blade 7 cannot contact the crushing tooth ring 5, so that the spiral blade 7 stops working when the crushing tooth ring 5 does not need to be cleaned.

[0024] 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. A polypropylene pipe waste crushing device, comprising a box body (1) with an opening at the top, two crushing rollers (2) rotatably mounted in the box body (1), the crushing rollers (2) being symmetrically distributed on the left and right, a first driving mechanism for driving the two crushing rollers (2) to rotate in opposite directions is provided on the box body (1), a discharge port (3) is provided at the bottom of the box body (1), and a plurality of supporting legs (4) are fixedly mounted on the box body (1), characterized in that: A plurality of crushing tooth rings (5) are fixedly mounted on the crushing rollers (2), and the crushing tooth rings (5) on the two crushing rollers (2) are staggered. A spiral blade (7) capable of cleaning the crushing tooth rings (5) is arranged in the housing (1), and the spiral blade (7) is fixedly mounted on a coaxial rotating rod (8). A second driving mechanism and a third driving mechanism are sequentially arranged in the housing (1), and the second driving mechanism can drive the spiral blade (7) to move, and the third driving mechanism can drive the rotating rod (8) to rotate. The second driving mechanism comprises a spring rod (40), and the spring rods (40) are rotatably mounted on both ends of the rotating rod (8) through an axle seat. A support rod (40) is fixedly mounted in the housing (1) corresponding to the spiral blade (7). 41), the spring rod (40) is rotatably connected to the corresponding support rod (41) through a shaft sleeve (42), a torsion spring (43) is provided between the shaft sleeve (42) and the support rod (41), a slide rod (44) is fixedly installed on the spring rod (40), a special-shaped slide groove (45) is provided on the inner wall of the box body (1) corresponding to the slide rod (44), and the slide rod (44) is slidably connected to the special-shaped slide groove (45); the third driving mechanism comprises a second motor (50), the second motor (50) is fixedly installed on the movable end of the spring rod (40) through a support plate, and a coaxial helical gear (51) is fixedly installed on the output shaft of the second motor (50) and the rotating rod (8), and the two helical gears (51) are meshed and matched.

2. A polypropylene pipe waste crushing device according to claim 1, characterized in that: A material blocking block (20) is fixedly installed on the inner wall of the box body (1) corresponding to the crushing tooth ring (5), the material blocking block (20) and the crushing tooth ring (5) are arranged in a staggered manner, and a material blocking plate (21) is fixed on the left and right sides of the box body (1) respectively.

3. A polypropylene pipe waste crushing device according to claim 2, characterized in that: The first driving mechanism comprises a first motor (30), the first motor (30) is fixedly mounted on the baffle plate (21), a first gear (31) is fixedly mounted on the rotating shaft of the first motor (30), the rotating shafts on both sides of the crushing roller (2) are respectively rotatably mounted on the housing (1) through bearings, the rotating shaft on the corresponding side of the crushing roller (2) extends outside the housing (1) and is respectively fixedly mounted with a coaxial second gear (32), the two second gears (32) are meshed with each other, and the first gear (31) is meshed with one of the second gears (32).

4. The polypropylene pipe waste crushing device according to claim 1, characterized in that: The shaft sleeves (42) are respectively fixedly mounted with sleeves (60), and the sleeves (60) cover the corresponding torsion springs (43).

5. The polypropylene pipe waste crushing device according to claim 1, characterized in that: A plurality of slots are provided on the side wall of the box body (1), and insertion rods (70) are inserted and matched in the slots. The insertion rods (70) correspond to the special-shaped slide grooves (45) one by one, and the insertion rods (70) extend into the corresponding special-shaped slide grooves (45).

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