Fabric wrapping machine edge cutting knife protection device

Abstract

A protective device for the edge cutting and sealing knife of a cloth coating machine comprises a first pneumatic cylinder arranged on both sides of the edge sealing machine platform to drive a sealing knife frame and a sealing knife group to reciprocate and rise and fall, and a single-acting extended second pneumatic cylinder and a brake rod are also arranged on both sides of the edge sealing machine platform; when the cloth coating machine is in a state of air pressure source supply, the piston rod of the second pneumatic cylinder drives the brake rod to leave the sealing knife frame, allowing the first pneumatic cylinder to drive the sealing knife group to reciprocate and rise and fall to perform hot-melt edge sealing of the cloth film; and when the cloth coating machine is shut down for a long time and the air pressure source is stopped, the piston rod of the second pneumatic cylinder is pushed outward, allowing the brake rod to support the sealing knife frame, so as to prevent the blade of the sealing knife group from pressing downward on the surface of the anvil for a long time, thereby avoiding blade damage, and also extending the service life of the sealing knife group and saving costs.

Description

Technical Field

[0001] The present application relates to the technical field of cloth packaging machinery, and in particular to a cutting and sealing knife protection device for a cloth film wrapping machine. Background Art

[0002] According to the current cloth coating machine, an upper sealing knife device and a lower anvil are arranged between the two sides of the edge banding machine platform. The sealing knife device includes a sealing knife frame connected to a lower sealing knife group. A pneumatic cylinder connected to the sealing knife frame is arranged on each side of the edge banding machine platform to drive the sealing knife frame and the sealing knife group to reciprocate and rise and fall, so that the blade of the sealing knife group can cut the cloth film for hot-melt edge sealing, and then push the coated cloth forward to the sealing machine platform to hot-melt cut the excess material at both ends of the cloth film to form a seal.

[0003] However, when the cloth film coating machine is stopped for a long period of time, the cloth film coating machine stops supplying the air pressure source required by the pneumatic cylinder, and the pneumatic cylinder cannot continue to support the sealing knife device upward, causing the blade of the sealing knife group to press downward on the surface of the anvil for a long time, which is easy to cause blade damage, shorten the service life of the tool, and increase costs. Therefore, how to solve the above problem is the topic that the relevant industry players are eager to study. Utility Model Content

[0004] The main purpose of the present application is to utilize a single-acting extended air cylinder to allow the piston rod to drive the brake rod to support the knife sealing frame when the air pressure source is lost, so as to prevent the blade of the knife sealing group from being pressed downward on the surface of the anvil for a long time, thereby avoiding damage to the blade, extending the service life of the knife sealing group, and saving costs.

[0005] To achieve the above-mentioned purpose, the cloth film coating machine of the present application is provided with an upper sealing knife device and a lower anvil between the two sides of the edge banding machine platform, the sealing knife device includes a sealing knife frame connected to the lower sealing knife group, and a first pneumatic cylinder connected to the sealing knife frame is provided on each side of the edge banding machine platform to drive the sealing knife frame and the sealing knife group to reciprocate and lift, so that the blade of the sealing knife group cuts the cloth film for hot-melt edge banding; the sealing knife protection device includes a second pneumatic cylinder and a brake rod are provided on each side of the edge banding machine platform, the two second pneumatic cylinders are of single-acting extended type, and the brake rod is located at the lifting and lowering movement of the sealing knife frame The cloth wrapping machine controls the air pressure source to supply the first and second air pressure cylinders, and the piston rod of the two second air pressure cylinders is connected to the brake rod; when the cloth wrapping machine controls the air pressure source to supply the first and second air pressure cylinders, the piston rods of the two second air pressure cylinders move inward, and the piston rods drive the brake rods to leave the lifting and lowering range of the sealing knife holder, so that the sealing knife group can be lifted and lowered reciprocatingly to perform hot-melt edge sealing of the cloth film; and when the cloth wrapping machine stops supplying the air pressure source, the piston rods of the two second air pressure cylinders are pushed outward, and the piston rods drive the top end of the brake rod to support the bottom end of the sealing knife holder to prevent the blade of the sealing knife group from pressing downward on the surface of the anvil for a long time.

[0006] The aforementioned cloth coating machine edge cutting and sealing knife protection device, wherein the bottom side of the brake rod is pivotally connected to a support, and the support is fixed to the side of the edge banding machine, the bottom of the brake rod is extended outward with an actuating arm, the piston rod of the second pneumatic cylinder extends upward, and the top end of the piston rod is pivotally connected to the end of the actuating arm, and the bottom end of the second pneumatic cylinder is pivotally connected to the side of the edge banding machine to drive the brake rod and the actuating arm to swing and position.

[0007] The aforementioned edge cutting and sealing knife protection device of the cloth coating machine, wherein the top end of the brake rod is provided with an elastic buffer sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a three-dimensional diagram of the cloth coating machine of the present application.

[0009] Figure 2 It is a three-dimensional diagram (1) of the edge banding machine of the cloth coating machine of the present application.

[0010] Figure 3 It is a three-dimensional diagram (two) of the edge banding machine of the cloth coating machine of the present application.

[0011] Figure 4 It is a front view of the edge banding machine of the cloth coating machine of the present application.

[0012] Figure 5 It is a three-dimensional diagram of the state in which the edge cutting and sealing knife protection device of the cloth coating machine of the present application is separated from the sealing knife frame.

[0013] Figure 6 It is a three-dimensional exploded view of the edge cutting and sealing knife protection device of the cloth coating machine of the present application.

[0014] Figure 7 It is a side view of the state in which the edge cutting and sealing knife protection device of the cloth coating machine of the present application is separated from the sealing knife frame.

[0015] Figure 8 It is a three-dimensional diagram of the state in which the edge cutting and sealing knife protection device of the cloth coating machine of the present application is supported against the sealing knife frame.

[0016] Fig. 9 It is a side view of the state in which the edge cutting and sealing knife protection device of the cloth coating machine of the present application is supported against the sealing knife frame.

[0017] Description of Reference Numerals

[0018] 1. Edge banding machine 31, second pneumatic cylinder

[0019] 11. Knife sealing device 311. Piston rod

[0020] 12. Anvil 312, Joint

[0021] 13. Sealing knife holder 313, through hole

[0022] 14. First pneumatic cylinder 314, pneumatic tube

[0023] 15. Sealing knife group 315, exhaust port

[0024] 16. Conveyor belt 32. Brake rod

[0025] 17. Active rod 321, pivot axis

[0026] 2. Sealing machine 322, actuator arm

[0027] 21. Conveyor platform 323, elastic buffer sleeve

[0028] 22. Sealing and cutting group 324. Through hole

[0029] 23. Exhaust group 33. Support

[0030] 24. Heat sealing knife 34. Shaft seat

[0031] 3. Sealing knife protection device 35. Pivot shaft. DETAILED DESCRIPTION

[0032] Regarding the technical means and effects adopted by the present application to achieve the above-mentioned purpose, feasible embodiments are now given and described as follows with reference to the accompanying drawings:

[0033] First, see Figures 1 to 7 As shown in the figure, it can be clearly seen that the sealing blade protection device 3 of the present application is mainly used for cutting edge protection of a cloth coating machine, and the cloth coating machine includes an edge banding machine 1 and a sealing machine 2, wherein:

[0034] An upper knife sealing device 11 and a lower anvil 12 are arranged between the two sides of the edge banding machine 1. The knife sealing device 11 includes a knife sealing frame 13 and a movable rod 17 connected to a lower knife sealing group 15. A first pneumatic cylinder 14 connected to the knife sealing frame 13 is arranged on both sides of the edge banding machine 1 to drive the knife sealing frame 13 and the knife sealing group 15 to move up and down. The conveyor belt 16 is used to transport the cloth, and then a rubber film is coated on the periphery of the cloth (not shown in the figure), so that the blade of the knife sealing group 15 cuts the cloth film for hot-melt edge banding.

[0035] The sealing machine 2 is provided with a sealing and cutting group 22 and an exhaust group 23 on both sides of a conveying platform 21. After the conveying platform 21 transports the cloth to a position, a heat-sealing knife 24 is used to hot-melt cut the remaining material at both ends of the cloth film to form a seal.

[0036] The edge sealing knife protection device 3 of the present application includes a second pneumatic cylinder 31 and a brake rod 32 respectively arranged on both sides of the edge sealing machine 1. The two second pneumatic cylinders 31 are of a single-acting extended type. The pneumatic pipe 314 at the top of the cylinder body of the second pneumatic cylinder 31 is connected to the air pressure source, and the bottom of the cylinder body has an open exhaust port 315. The brake rod 32 can be controlled to enter or leave the lifting range of the edge sealing knife frame 13, and the piston rod 311 of the second pneumatic cylinder 31 is connected to the brake rod 32 upward. Figure 6 As shown, an elastic buffer sleeve 323 is provided at the top of the brake rod 32, and a support 33 is pivotally connected to the side of the bottom end of the brake rod 32 in cooperation with the pivot shaft 321, and the support 33 is fixed to the side of the edge banding machine 1, and an actuating arm 322 extends outward from the bottom end of the brake rod 32. The piston rod 311 of the second pneumatic cylinder 31 extends upward, and the joint 312 at the top end of the piston rod 311 is pivotally connected to the through hole 324 at the end of the actuating arm 322 in cooperation with the pivot shaft 35, and the through hole 313 at the bottom end of the second pneumatic cylinder 31 is pivotally connected to the shaft seat 34 on the side of the edge banding machine 1, so as to drive the brake rod 32 and the actuating arm 322 to swing and position around the pivot shaft 321.

[0037] When the cloth wrapping machine controls the air pressure source to supply the air pressure pipe 314 of the first air pressure cylinder 14 and the second air pressure cylinder 31, the piston rods 311 of the two second air pressure cylinders 31 move inward (see Figure 5 and Figure 7 ), and the piston rod 311 drives the top end of the brake rod 32 to swing forward and leave the lifting range of the sealing knife holder 13, so that the two first pneumatic cylinders 14 drive the sealing knife group 15 to lift and lower back and forth to perform the hot-melt edge sealing operation of the cloth film.

[0038] When the cloth coating machine is shut down for a long time and the air pressure source is stopped, the piston rods 311 of the two second air pressure cylinders 31 are pushed out first, and the piston rods 311 drive the top of the brake rod 32 to swing backward, and then the sealing knife frame 13 and the sealing knife group 15 slowly descend, so that the top of the brake rod 32 is against the bottom of the sealing knife frame 13 (see Figure 8 and Fig. 9 ) to prevent the bottom blade of the sealing knife assembly 15 from pressing downward on the surface of the anvil 12 for a long time, thereby avoiding damage to the blade, extending the service life of the sealing knife assembly 15, and saving costs.

[0039] The above embodiments are only used to illustrate the present application, and are not intended to be limiting. Various simple changes and modifications that can be made by those skilled in the art without departing from the spirit and scope of the present application should still be included in the claims.

Claims

1. A cutting edge sealing knife protection device for a cloth film coating machine, wherein the cloth film coating machine is provided with an upper sealing knife device and a lower anvil between two sides of an edge sealing machine platform, the sealing knife device comprises a sealing knife frame connected to a lower sealing knife group, and first pneumatic cylinders connected to the sealing knife frame are respectively provided on both sides of the edge sealing machine platform to drive the sealing knife frame and the sealing knife group to reciprocate and rise and fall, so that the blade of the sealing knife group cuts the cloth film for hot-melt edge sealing; characterized in that: The sealing knife protection device includes a second pneumatic cylinder and a brake rod respectively arranged on both sides of the edge banding machine platform, the two second pneumatic cylinders are of single-acting extended type, the brake rod is located in the lifting and lowering stroke range of the sealing knife frame, and the piston rod of the second pneumatic cylinder is connected to the brake rod; when the cloth coating machine controls the air pressure source to supply the first pneumatic cylinder and the second pneumatic cylinder, the piston rods of the two second pneumatic cylinders move inward, and the piston rod drives the brake rod to leave the lifting and lowering stroke range of the sealing knife frame, so that the sealing knife group can be lifted and lowered reciprocatingly to perform hot-melt edge banding of the cloth film; and when the cloth coating machine stops supplying the air pressure source, the piston rods of the two second pneumatic cylinders are pushed outward, and the piston rod drives the top end of the brake rod to support the bottom end of the sealing knife frame, so as to prevent the blade of the sealing knife group from pressing downward on the surface of the anvil for a long time.

2. The edge cutting and sealing knife protection device of the cloth wrapping machine as described in claim 1, wherein a support is pivotally connected to the side of the bottom end of the brake rod, and the support is fixed to the side of the edge banding machine, an actuating arm extends outward from the bottom end of the brake rod, the piston rod of the second pneumatic cylinder extends upward, and the top end of the piston rod is pivotally connected to the end of the actuating arm, and the bottom end of the second pneumatic cylinder is pivotally connected to the side of the edge banding machine to drive the brake rod and the actuating arm to swing and position.

3. The edge cutting and sealing knife protection device of the cloth wrapping machine as described in claim 2, wherein an elastic buffer sleeve is provided on the top of the brake rod.

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