CN211492782U

CN211492782U - Protection device of plastic net setting machine

Info

Publication number: CN211492782U
Application number: CN201922206139.2U
Authority: CN
Inventors: 滕国民; 金学勇
Original assignee: Shaoxing Naite Plastics Co ltd
Current assignee: Shaoxing Naite Plastics Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-09-15
Anticipated expiration: 2029-12-10

Abstract

The utility model relates to a protective device of a plastic net forming machine, which relates to the technical field of plastic net processing equipment and comprises a frame, wherein a traction device is arranged on the frame and comprises a first transmission roller, a second transmission roller and a driving component, hot oil is injected into the first transmission roller and the second transmission roller, the driving component comprises a driving motor, a first transmission gear and a second transmission gear, and an output shaft of the driving motor is connected with the first transmission roller through a chain; the emergency stop device is arranged on the rack and comprises a pull switch and a pull rope, the pull rope is parallel to the second transmission roller, one end of the pull rope is connected with a pull rod of the pull switch, the other end of the pull rope is connected with the other side, far away from the pull switch, of the rack, and the pull switch is electrically connected with the driving motor. The utility model discloses when the staff touched the stay cord, thereby the cord switch can be turn-offed off and make driving motor stall, prevents to be drawn into in the roller.

Description

Protection device of plastic net setting machine

Technical Field

The utility model belongs to the technical field of the technique of plastic net processing equipment and specifically relates to a protector of plastic net forming machine is related to.

Background

Plastic nets such as a filter screen, a screen window net and the like are heated and melted in an extruder through plastic raw materials, the melted plastic flows through pores of a die opening through a die head to form two strands of melted material wires, the two strands of material wires are intermittently converged at one point due to rotation or up-and-down movement of the die head, so that a network is formed, and the network is shaped into a net after cooling and stretching.

At present, a patent with publication number CN208615298U discloses a stretching mechanism for processing a plastic web, which includes a frame, and a driving roller set disposed on the frame, wherein the driving roller set includes a first driving roller, a second driving roller, a third driving roller and a first driving member for driving the second driving roller to rotate, which are rotatably disposed on the frame in sequence; the first driving roller and the third driving roller are positioned on two sides of the second driving roller, and the height of the second driving roller is lower than that of the first driving roller and that of the third driving roller. First driving roller, second driving roller and third driving roller rotate, and the plastic mesh passes through and advances through the extrusion force between first driving roller, second driving roller and third driving roller.

The technical scheme has the following defects: during operation, often need the manual work to clear up or draw the level to the plastic web, if touch first driving roller, second driving roller and third driving roller carelessly, because first driving roller, second driving roller and third driving roller rotate, can make the health be drawn into the machine, cause the personal accident.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a protector of plastic net forming machine has the scram device, can in time stop driving motor's rotation, reduces the probability of occurence of failure.

The above object of the present invention is achieved by the following technical solutions:

a protective device of a plastic net setting machine comprises a rack, wherein a traction device is arranged on the rack and comprises a first transmission roller, a second transmission roller and a driving assembly, the first transmission roller and the second transmission roller are rotatably installed on the rack, hot oil is injected into the first transmission roller and the second transmission roller, the driving assembly comprises a driving motor installed on the rack, a first transmission gear installed at one end of the first transmission roller and a second transmission gear installed at one end of the second transmission roller and meshed with the first transmission gear, and an output shaft of the driving motor is connected with the first transmission roller through a chain;

the emergency stop device comprises a pull switch arranged on one side of the rack and a pull rope arranged on the pull switch, the pull rope is parallel to the second transmission roller, one end of the pull rope is connected with a pull rod of the pull switch, the other end of the pull rope is connected with the other side, far away from the pull switch, of the rack, and the pull switch is electrically connected with the driving motor.

Through adopting above-mentioned technical scheme, first driving roller and second driving roller antiport, when the staff touched the stay cord, thereby the cord switch can be shut off and make driving motor stall, prevent to be drawn into in the roller. The plastic net passes through the first driving roller and the second driving roller, and hot oil is injected into the first driving roller and the second driving roller, so that the plastic net can be heated and shaped.

Preferably, the rack is provided with an adjusting assembly for adjusting the tightness of the pull rope, the adjusting assembly comprises a rotating wheel and a locking piece, the rotating wheel is mounted on the rack and connected with one end, far away from the pull-cord switch, of the pull rope, the locking piece is mounted on the rotating wheel, the surface of the rotating wheel is provided with a ring groove for winding the pull rope, one end, far away from the pull-cord switch, of the pull rope is wound in the ring groove, and the rotating wheel is provided with a rotating handle.

Through adopting above-mentioned technical scheme, rotate through the rotation wheel and wind tight stay cord or loosen the regulation that the stay cord realization stay cord elasticity to adjustment stay cord is to pull-cord switch's sensitivity, and the stay cord is tighter, touches the stay cord more easily and triggers pull-cord switch. Conversely, the harder it is to trigger the pull switch.

Preferably, the locking member comprises a ratchet wheel arranged on one side of the rotating wheel, a pawl with one end rotatably connected to the rack and the other end embedded in a tooth groove of the ratchet wheel, and a locking spring arranged on the rack and with two ends respectively arranged between the rack and the pawl.

By adopting the technical scheme, when the rotating wheel rotates, the ratchet wheel also rotates along with the rotating wheel, the pawl can be continuously embedded into the tooth groove of the ratchet wheel under the action of the locking spring, and when the rotating wheel has the tendency of reverse rotation, the pawl is abutted against the tooth groove of the ratchet wheel to prevent the rotating wheel from reversely rotating; when the reverse rotation is needed, the rotating wheel can be reversely rotated only by pulling the pawl away.

Preferably, the pull rope is a steel wire rope.

Through adopting above-mentioned technical scheme, compare in the iron wire, wire rope is difficult to buckle, and wire rope does not have very big elasticity moreover, can let the cord-operated switch trigger more sensitively, rapidly.

Preferably, a supporting ring is fixedly arranged on the machine frame, and the pull rope penetrates through the supporting ring.

Through adopting above-mentioned technical scheme, because the stay cord has certain dead weight, the stay cord passes from the backing ring and can reduce the influence of stay cord dead weight to the cord switch to a certain extent.

Preferably, the frame is provided with a plurality of heating rollers which are arranged along the width of the frame and are arranged in parallel, and the plastic net passes through the lower part of the heating rollers.

Through adopting above-mentioned technical scheme, the heating roller can further heat the design to the plastic mesh.

Preferably, the two sides of the rack are provided with slide rails located below two ends of the heating roller, the heating roller is installed on the slide rails in a sliding manner, the heating roller is provided with a fixing part, and the fixing part comprises a slide sheet fixedly installed on the heating roller and matched with the slide rails and a limiting part installed on the slide sheet.

Through adopting above-mentioned technical scheme, the warming mill slides through the gleitbretter and installs on the slide rail, adjusts the position of warming mill according to the work demand, and later rethread locating part is fixed the gleitbretter to fix the roller shell.

Preferably, the locating part includes the bolt of fixed mounting on the gleitbretter and with bolt threaded connection's nut, the bolt passes gleitbretter and the double-screw bolt stretches out the slide rail, the nut can support the gleitbretter tightly the slide rail.

Through adopting above-mentioned technical scheme, lock the gleitbretter on the slide rail through the nut to fix the position of warming mill, make things convenient for the dismouting.

To sum up, the utility model discloses a beneficial technological effect does:

1. the emergency stop device can stop the rotation of the first transmission roller and the second transmission roller in time, so that workers are prevented from being involved in the rollers;

2. the heating roller can further heat the plastic net for shaping, and the position of the heating roller can be moved according to the situation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention showing the driving assembly;

FIG. 3 is an enlarged schematic view of portion A of FIG. 1;

fig. 4 is an enlarged schematic view of a portion B in fig. 1.

Reference numerals: 1. a frame; 2. a traction device; 21. a first drive roller; 22. a second driving roller; 23. a drive assembly; 231. a drive motor; 232. a first drive gear; 233. a second transmission gear; 3. a sudden stop device; 31. a pull switch; 32. pulling a rope; 4. a ring; 5. an adjustment assembly; 51. a rotating wheel; 521. a ratchet wheel; 522. a pawl; 523. a locking spring; 6. a heating roller; 7. a slide rail; 8. a fixing member; 81. sliding blades; 82. and a limiting member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a protection device of a plastic net forming machine comprises a frame 1, wherein a traction device 2 is arranged on the frame 1, the traction device 2 comprises a first transmission roller 21, a second transmission roller 22 and a driving component 23, the first transmission roller 21 is rotatably installed on the frame 1, the second transmission roller 22 is rotatably installed on the frame 1 above the first transmission roller 21, and the first transmission roller 21 and the second transmission roller 22 are connected with a heating device (not shown in the figure). The plastic web passes through the first driving roller 21 and the second driving roller 22, and the first driving roller 21 and the second driving roller 22 heat-set the plastic web.

The driving assembly 23 includes a driving motor 231, a first transmission gear 232 and a second transmission gear 233, the driving motor 231 is fixedly mounted on the frame 1 and located below the first transmission roller 21, and an output shaft of the driving motor 231 is fixedly connected with a driving gear (not shown in the figure); the first transmission gear 232 is fixedly arranged on one side of the first transmission roller 21, a third transmission gear is fixedly connected to one side of the first transmission gear 232, and the driving gear is connected with the third transmission gear through a chain; the second transmission gear 233 is fixedly installed at one side of the second transmission roller 22, and the second transmission gear 233 is engaged with the first transmission gear 232. The driving motor 231 drives the driving gear to rotate, and drives the third transmission gear to rotate (not marked in the figure) under the action of the chain, so as to drive the first transmission gear 232 to rotate and drive the second transmission gear 233 to rotate, so that the first transmission roller 21 and the second transmission roller 22 rotate reversely.

Referring to fig. 1 and 3, the frame 1 is provided with an emergency stop device 3, and the emergency stop device 3 includes a pull switch 31 and a pull rope 32. The pull switch 31 is fixedly arranged on one side of the frame 1; the pulling rope 32 is a steel wire rope, the pulling rope 32 is parallel to the second driving roller 22 and is located in front of the second driving roller 22, one end of the pulling rope 32 is connected with the pulling rod of the pulling switch 31, the other end of the pulling rope 32 is connected with the other side of the rack 1, which is far away from the pulling switch 31, and the pulling switch 31 is electrically connected with the driving motor 231. The two sides of the frame 1 are fixedly provided with the support rings 4, and the pull rope 32 passes through the support rings 4, so that the influence of the self weight of the pull rope 32 on the pull switch 31 is reduced.

Referring to fig. 1 and 4, an adjusting assembly 5 is provided on the frame 1, and the adjusting assembly 5 includes a rotating wheel 51 and a locking member. The rotating wheel 51 is rotatably installed on one side of the machine frame 1 far away from the pull switch 31, an annular groove is formed in the surface of the rotating wheel 51, one end of the pull rope 32 far away from the pull switch 31 is wound in the annular groove, and a rotating handle is fixedly arranged on the rotating wheel 5. The locking piece comprises a ratchet wheel 521, a pawl 522 and a locking spring 523, the ratchet wheel 521 is fixedly arranged on one side of the rotating wheel 51, one end of the pawl 522 is rotatably connected to the rack 1, and the other end of the pawl 522 is embedded in a tooth groove of the ratchet wheel 521; the locking spring 523 is fixedly installed on the rack 1, and one end of the locking spring 523 is connected with the rack 1, and the other end of the locking spring is connected with the lower surface of the pawl 522. When the rotating wheel 51 rotates, the ratchet wheel 521 rotates along with the rotating wheel, the pawl 522 can be continuously embedded into the tooth socket of the ratchet wheel 521 under the action of the locking spring 523, and when the rotating wheel 51 has a tendency of reverse rotation, the pawl 522 is abutted into the tooth socket of the ratchet wheel 521 to prevent the rotating wheel 51 from reversely rotating; when reverse rotation is desired, the wheel 51 can be reversed by simply pulling the pawl 522 open.

Referring to fig. 1 and 2, the frame 1 is further provided with a plurality of heating rollers 6, two heating rollers 6 are provided in this embodiment, the two heating rollers 6 are arranged along the width direction of the frame 1 and are parallel to each other, and the plastic net passes under the heating rollers 6. The heated roller 6 can further heat and set the plastic net.

Slide rails 7 are arranged on two sides of the rack 1, inverted T-shaped slide grooves are formed in the slide rails 7, the slide rails 7 are horizontally arranged and arranged along the conveying direction of the plastic net, the slide rails 7 on the two sides are respectively located below two end portions of the heating roller 6, and fixing pieces 8 are arranged on the heating roller 6. The fixing part 8 comprises a sliding sheet 81 and a limiting part 82, the sliding sheet 81 is fixedly installed at two end parts of the heating roller 6, an inverted T-shaped sliding block matched with the sliding chute is integrally arranged at the bottom of the sliding sheet 81, and the sliding sheet 81 is installed on the sliding rail 7 in a sliding manner through the matching of the sliding block and the sliding chute, so that the heating roller 6 is installed on the sliding rail 7 in a sliding manner; the limiting member 82 includes a bolt and a nut, the bolt is fixedly mounted on the sliding piece 81, the bolt penetrates through the sliding piece 81 and the stud to extend out of the sliding rail 7, the nut is in threaded connection with the bolt to extend out of one end of the sliding rail 7 and abuts against the sliding piece 81 on the sliding rail 7.

The working principle of the embodiment is as follows:

the tension of the rope 32 is adjusted to a proper level by rotating the pulley 51, and then the pawl 522 is fitted into the teeth groove of the ratchet 521 to prevent the pulley 51 from being reversely rotated.

The driving motor 231 drives the driving gear to rotate, and drives the third transmission gear to rotate under the action of the chain, so as to drive the first transmission gear 232 to rotate and drive the second transmission gear 233 to rotate, so that the first transmission roller 21 and the second transmission roller 22 rotate reversely. When the worker touches the pull cord 32, the pull switch 31 is turned off to stop the rotation of the driving motor 231, preventing the worker from being caught in the roll.

Hot oil is filled in the first driving roller 21 and the second driving roller 22, and the plastic net passes through the first driving roller 21 and the second driving roller 22 and then passes through the lower surface of the heating rod, so that the plastic net can be heated and shaped.

The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations are not departed from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The protection device of the plastic net forming machine comprises a rack (1), wherein a traction device (2) is arranged on the rack (1), the traction device (2) comprises a first transmission roller (21) and a second transmission roller (22) which are rotatably installed on the rack (1) and a driving assembly (23) installed on the rack (1), hot oil is injected into the first transmission roller (21) and the second transmission roller (22), the driving assembly (23) comprises a driving motor (231) installed on the rack (1), a first transmission gear (232) installed at one end of the first transmission roller (21) and a second transmission gear (233) installed at one end of the second transmission roller (22) and meshed with the first transmission gear (232), and an output shaft of the driving motor (231) is connected with the first transmission roller (21) through a chain;

the method is characterized in that: the emergency stop device (3) is arranged on the rack (1), the emergency stop device (3) comprises a pull switch (31) installed on one side of the rack (1) and a pull rope (32) installed on the pull switch (31), the pull rope (32) is parallel to the second transmission roller (22), one end of the pull rope (32) is connected with a pull rod of the pull switch (31), the other end of the pull rope is connected with the other side, far away from the pull switch (31), of the rack (1), and the pull switch (31) is electrically connected with a driving motor (231).

2. The protection device of the plastic net setting machine according to claim 1, characterized in that: be provided with on frame (1) and be used for adjusting part (5) of stay cord (32) elasticity, adjusting part (5) are including installing in frame (1) and keeping away from tumbler (51) that pull switch (31) one end is connected and installing the retaining member on tumbler (51) with stay cord (32), and the ring channel that is used for twining stay cord (32) is seted up on tumbler (51) surface, the one end winding that pull switch (31) were kept away from in pull cord (32) is in the ring channel, be provided with the rotation handle on tumbler (51).

3. The protection device of the plastic net setting machine according to claim 2, characterized in that: the locking piece comprises a ratchet wheel (521) arranged on one side of the rotating wheel (51), a pawl (522) with one end rotatably connected to the rack (1) and the other end embedded into a tooth groove of the ratchet wheel (521), and a locking spring (523) arranged on the rack (1) and with two ends respectively arranged between the rack (1) and the pawl (522).

4. The protection device of the plastic net setting machine according to claim 1, characterized in that: the pull rope (32) is a steel wire rope.

5. The protection device of the plastic net setting machine according to claim 1, characterized in that: the frame (1) is fixedly provided with a supporting ring (4), and the pull rope (32) penetrates through the supporting ring (4).

6. The protection device of the plastic net setting machine according to claim 1, characterized in that: the heating device is characterized in that a plurality of heating rollers (6) are arranged on the rack (1), the heating rollers (6) are arranged along the width of the rack (1) and are arranged in parallel, and the plastic net passes through the lower part of the heating rollers (6).

7. The protection device of the plastic net setting machine according to claim 1, characterized in that: frame (1) both sides are provided with slide rail (7) that are located warming mill (6) both ends below, warming mill (6) slide and install on slide rail (7), be provided with mounting (8) on warming mill (6), mounting (8) including fixed mounting on warming mill (6) and with slide rail (7) matched with gleitbretter (81) and install locating part (82) on gleitbretter (81).

8. The protection device of the plastic net setting machine according to claim 7, characterized in that: the limiting part (82) comprises a bolt fixedly mounted on the sliding sheet (81) and a nut in threaded connection with the bolt, the bolt penetrates through the sliding sheet (81) and the stud to extend out of the sliding rail (7), and the nut can tightly support the sliding sheet (81) on the sliding rail (7).