Needle machine with tension adjusting device

Abstract

The invention relates to the technical field of needling machines, in particular to a needling machine with a tension adjusting device.The needling machine comprises a conveying device, a needling mechanism and a conveying belt, the conveying device is used for achieving circulating transmission of the conveying belt, the needling mechanism is installed at the upper end of the conveying device and faces the conveying belt, and an installation frame is installed at the lower end of the conveying device; a sliding frame is fixedly mounted at the lower end of the mounting frame, a through groove is formed in the inner side of the sliding frame in a penetrating mode, a connecting frame is slidably mounted in the through groove, a connecting part used for fixing a moving roller is integrally formed on the side, facing the conveying belt, of the connecting frame, and the moving roller slidably abuts against the end face of the inner side of the conveying belt. According to the needling machine with the tension adjusting device, the defect that buffering cannot be provided in the prior art is overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of needle punching machines, and particularly to a needle punching machine with a tension adjusting device. Background Art

[0002] For example, in Chinese Patent Application No. "CN202220787423.2", a needle punching machine with a tension adjusting device is disclosed. The needle punching machine realizes the adjustment of the tension of the "conveyor belt" by adjusting the "tension roller", improving the processing effect of the product.

[0003] However, in the above example, the mechanism for controlling the "tension roller" is a lead screw or a cylinder. This design makes the adjustment of the "tension roller" relatively rigid. When the "conveyor belt" vibrates, the "tension roller" cannot provide a buffering effect, resulting in the "conveyor belt" being pulled strongly, reducing its service life.

[0004] Based on the above-mentioned disadvantages in the prior art, this case will propose an adjustment mechanism for the "tension roller" with buffering ability to improve the needle punching effect and the service life of the "conveyor belt". Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages in the prior art such as the inability to provide buffering, and to propose a needle punching machine with a tension adjusting device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0007] Design a needle punching machine with a tension adjusting device, including a conveying device, a needle punching mechanism, and a conveyor belt. The conveying device is used to realize the cyclic transmission of the conveyor belt. The needle punching mechanism is installed at the upper end of the conveying device and faces the conveyor belt. An installation frame is installed at the lower end of the conveying device. A sliding frame is fixedly installed at the lower end of the installation frame. A through groove is formed through the inner side of the sliding frame. A connecting frame is slidably installed inside the through groove. A connecting portion for fixing a moving roller is integrally formed on the side of the connecting frame facing the conveyor belt. The moving roller is slidably abutted against the inner end face of the conveyor belt;

[0008] A sleeve is provided on one side of the sliding frame, and the upper and lower ends of the sleeve are respectively threadedly connected with the first sealing cover and the second sealing cover, and the first sliding rod and the second sliding rod are respectively slidably inserted in the interior of the first sealing cover and the second sealing cover, and the first sliding rod and the second sliding rod are respectively integrally formed with a first sliding part and a second sliding part that play a sealing and sliding role at one end of the first sliding rod and the second sliding rod located in the interior of the sleeve, and a driving component connected to the first sliding rod transmission is rotatably installed at the outer end of the first sealing cover, and the driving component is used to control the length of the first sliding rod inserted into the interior of the sleeve, an elastic member is elastically abutted between the second sliding part and the second sealing cover, and the outer end of the second sliding rod is fixedly connected to the connecting frame.

[0009] Preferably, the driving assembly includes a rotating part rotatably installed inside the first cover, one end of the rotating part extends to the outside of the first cover and is integrally formed with a first transmission member, a second transmission member is transmission-mounted on one side of the first transmission member, the first transmission member is a worm gear, and the second transmission member is a worm.

[0010] Preferably, a first air hole and a second air hole are respectively formed through the inside of the first sliding rod and the second sliding rod, and a gas delivery port is integrally formed at one end of the outer side of the first air hole and the second air hole.

[0011] Preferably, one end of the two groups of air delivery ports are connected to the valve core, and the input end of one group of valve cores is connected to an air pump.

[0012] Preferably, one end of the two groups of gas delivery ports are respectively connected to an air pump and a solenoid valve.

[0013] Preferably, a barometer is installed at one end of the outer side of the first air hole and the second air hole.

[0014] Preferably, fixed rollers are rotatably mounted on both ends of the sliding frame via a rotating shaft, and the outer end surface of the conveyor belt is in sliding contact with opposite sides of the two groups of fixed rollers.

[0015] Preferably, the two groups of fixed rollers and one group of movable rollers together form an isosceles triangle structure.

[0016] Preferably, one end of the connecting frame located inside the through slot formed by the sliding frame is rotatably mounted with a plurality of sets of sliding wheels, and the sliding wheels are arranged in a rectangular shape and have four sets.

[0017] Preferably, a limiting sliding groove is provided on the inner side of the first cover and the outer end surface of the first slide bar, so that the first cover and the first slide bar can only slide longitudinally.

[0018] The invention provides a needling machine with a tension regulating device, which has the following beneficial effects:

[0019] The adjustment of the position of the moving roller is achieved through air pressure and elastic components, and this adjustment has a buffering effect. Compared with the existing rigid adjustment structure, it is beneficial to improve the needling effect and the service life of the conveyor belt;

[0020] Through the provided driving assembly, the cooperation between the driving assembly, the first air hole and the second air hole enables the immediate adjustment of the position of the moving roller, and the moving roller has more adjustment capabilities, making it more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the main body;

[0022] Figure 2 Schematic diagram of the lateral sectional structure of the main body;

[0023] Figure 3 Schematic diagram of the exploded disassembled structure of the main body;

[0024] Figure 4 Schematic diagram of the sectional structure of the sleeve;

[0025] Figure 5 Schematic diagram of the exploded disassembled structure of the sliding frame;

[0026] Figure 6 Schematic diagram of the exploded disassembled structure of the first sliding rod;

[0027] Figure 7 Schematic diagram of the exploded disassembled structure of the second sliding rod;

[0028] Figure 8 Schematic diagram of the exploded disassembled structure of the driving assembly.

[0029] In the figure:

[0030] 1, conveying device; 2, needling mechanism; 3, conveyor belt;

[0031] 4, mounting bracket; 5, fixed roller; 6, sliding frame; 601, connecting frame; 602, sliding wheel; 603, connecting part; 7, sleeve;

[0032] 8, first cover; 801, first sliding rod; 802, limiting chute; 803, first air hole; 804, first sliding part; 9, rotating part; 901, first transmission part; 902, second transmission part; 10, second cover; 1001, second sliding rod; 1002, second air hole; 1003, elastic component; 1004, second sliding part;

[0033] 11, moving roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Reference Figure 1-8 , here is an example of how the subject is implemented:

[0036] In the first case cited in the background technology, the adjustment of the tension of the "conveyor belt" is achieved by setting a movable "tension roller" and controlling the movement of the "tension roller" through a "push-pull rod". The first case proposed an implementation method of setting the "push-pull rod" as a screw rod or replacing the "push-pull rod" with a cylinder or other structures. Although the screw rod or cylinder or other structures can achieve the adjustment of the "tension roller", in actual use, since the screw rod or cylinder is relatively rigid and has no buffering capacity, the tension generated by the shaking of the "conveyor belt" during transmission cannot be released, which reduces the life of the "conveyor belt". Due to the large instantaneous tension during shaking, the tension sensor is very likely to give a false alarm, so an adjustment mechanism with buffering capacity acting on the "tension roller" is needed.

[0037] In order to solve the defects in the above-mentioned prior art, a needling machine with a tension adjustment device is proposed below, comprising a conveying device 1, a needling mechanism 2, and a conveying belt 3. The conveying device 1 is a traditional conveying belt 3 driving device, comprising a plurality of driving rollers and a bracket to realize the circulating transmission of the conveying belt 3. The needling mechanism 2 is installed at the upper end of the conveying device 1 and faces the conveying belt 3 to realize the needling operation.

[0038] A mounting frame 4 is also installed at the lower end of the conveying device 1, and a sliding frame 6 is fixedly installed at the lower end of the mounting frame 4 by bolts and other components. A through groove is penetrated through the inner side of the sliding frame 6, and a connecting frame 601 is slidably installed inside the through groove. The connecting frame 601 is integrally formed with a connecting portion 603 for fixing the moving roller 11 on the side facing the conveyor belt 3. The moving roller 11 is slidably abutted against the inner end surface of the conveyor belt 3. A sleeve 7 is provided on one side of the sliding frame 6, and the upper and lower ends of the sleeve 7 are respectively threadedly connected with a first cover 8 and a second cover 10, and the first cover 8 and the second cover 10 are respectively slidably inserted into the interior of the first cover 8 and the second cover 10. Rod 801 and the second slide bar 1001, the first slide bar 801 and the second slide bar 1001 are respectively integrally formed with a first sliding portion 804 and a second sliding portion 1004 that play a sealing and sliding role at one end located inside the sleeve 7, and a driving component that is rotatably installed at the outer end of the first cover 8 and is connected to the first slide bar 801 for transmission, and the driving component is used to control the length of the first slide bar 801 inserted into the sleeve 7, and an elastic member 1003 is elastically abutted between the second sliding portion 1004 and the second cover 10, and the outer end of the second slide bar 1001 is fixedly connected to the connecting frame 601 by bolts or the like.

[0039] Based on the above content, the length of the first sliding rod 801 extending into the sleeve 7 is adjusted by the driving component to utilize the air pressure in the sleeve 7 to push the second sliding rod 1001 to move forward. The elastic member 1003 in the second sliding rod 1001 provides a reverse driving force to adjust the position of the moving roller 11 and endow the moving roller 11 with a certain buffering capacity. Therefore, the above structure has two usage modes:

[0040] Usage mode one, taking Figure 2 as an example, in the figure, the second sliding rod 1001 faces upward. At this time, the elastic member 1003 pushes the second sliding rod 1001 to move downward. When it is necessary to reduce the abutting strength against the conveyor belt 3, it is necessary to move the first sliding rod 801 upward. And as the first sliding rod 801 and the second sliding rod 1001 are gradually moved upward, the distance between the first sliding portion 804 and the second sliding portion 1004 decreases and the air pressure increases. When the conveyor belt 3 vibrates, the maximum displaceable stroke of the second sliding portion 1004 downward decreases;

[0041] Usage mode two, the second sliding rod 1001 faces downward. At this time, the elastic member 1003 pushes the second sliding rod 1001 to move upward. When it is necessary to increase the abutting strength against the conveyor belt 3, it is necessary to move the first sliding rod 801 downward. And as the first sliding rod 801 and the second sliding rod 1001 are gradually moved downward, the distance between the first sliding portion 804 and the second sliding portion 1004 decreases and the air pressure increases. When the conveyor belt 3 vibrates, the maximum displaceable stroke of the second sliding portion 1004 upward decreases;

[0042] In the above two usage modes, there is a minimum vibration stroke at the initial position of the moving roller 11 and a minimum vibration stroke at the maximum extension position of the moving roller 11. The above two usage modes respectively control the downward movement and upward movement of the second sliding rod 1001 through the elastic member 1003. Since the moving roller 11 mostly needs to move downward for tensioning during the needling process, it is recommended to select usage mode one as the conventional installation mode.

[0043] Furthermore, referring to Figure 1 、 3 , both ends of the sliding frame 6 are rotatably installed with fixed rollers 5 through structures such as rotating shafts. The outer end face of the conveyor belt 3 is in sliding abutment with the opposite side of the two groups of fixed rollers 5. The two ends of the fixed rollers 5 are of a slope structure for guiding the conveyor belt 3 to move forward. The two groups of fixed rollers 5 and a group of moving rollers 11 together form an isosceles triangle structure.

[0044] Furthermore, referring to Figure 5 , a plurality of sliding wheels 602 are rotatably installed at one end of the connecting frame 601 located inside the through groove opened in the sliding frame 6. To improve the stability of sliding, the sliding wheels 602 should be arranged in a rectangular pattern with four groups.

[0045] Furthermore, referring toFigure 6 On the inner side of the first cover 8 and the outer end face of the first sliding rod 801, limiting sliding grooves 802 are provided, so that the first cover 8 and the first sliding rod 801 can only slide longitudinally to play a limiting role.

[0046] Refer to Figure 4 、 8 Here is an example of the implementation manner of the driving component:

[0047] To be able to drive the first sliding rod 801 to slide up and down, the driving component includes a rotating part 9 rotatably installed inside the first cover 8. One end of the rotating part 9 extends to the outside of the first cover 8 and is integrally formed with a first transmission part 901. A second transmission part 902 is installed on one side of the first transmission part 901 for transmission. To achieve the effect of one-way transmission, the first transmission part 901 can be set as a worm gear, and the second transmission part 902 can be set as a worm. At one end of the second transmission part 902, a driving device such as a motor is installed for transmission, so that the second transmission part 902 can be driven to rotate along its central axis. The first transmission part 901 is sleeved on the periphery of the first sliding rod 801. The first sliding rod 801 and the first transmission part 901 can be a ball screw structure. When the first transmission part 901 is rotated, the first sliding rod 801 can be driven to generate displacement.

[0048] Refer to Figure 4 Here is an example of the extended implementation manner of the first sliding rod 801 and the second sliding rod 1001:

[0049] In the above two examples of implementation manners, a device for adjusting the moving roller 11 by using air pressure and a spring is constructed, and a certain buffering effect is achieved. However, there are still certain problems, such as the problem of the minimum jitter stroke in "Usage Method One" and "Usage Method Two". Therefore, the solution to this problem will be proposed next.

[0050] Refer to Figure 4 Inside the first sliding rod 801 and the second sliding rod 1001, a first air hole 803 and a second air hole 1002 are respectively penetrated and opened. At the outer ends of the first air hole 803 and the second air hole 1002, air delivery ports are integrally formed. One end of the air delivery port is connected to an air pump or a valve core or a solenoid valve.

[0051] Based on the above content, by connecting an external air pump or a valve core or a solenoid valve through the first air hole 803 and the second air hole 1002, the air pressure in the sleeve 7 and the initial air pressure can be changed without moving the first sliding rod 801. Therefore, there are two main matching methods:

[0052] In the first matching method, a valve core is installed on both the air pump and the valve core, and on both the first air hole 803 and the second air hole 1002. After increasing the initial air pressure in the sleeve 7 by using the air pump, the air pump can be closed. At this time, the air pressure in the sleeve 7 increases. When the driving component pushes the first sliding rod 801 to move forward, the distance between the first sliding part 804 and the second sliding part 1004 will not be too small, so that the minimum jitter stroke length increases;

[0053] In the second matching method, an air pump and a solenoid valve are installed on the first air hole 803 and the second air hole 1002 respectively, so that the air pressure intensity in the sleeve 7 can be changed in real time, or the telescopic state of the second sliding rod 1001 can be directly controlled by air pressure, or the telescopic state of the second sliding rod 1001 can be changed in cooperation with the driving component, so as to have sufficient jitter stroke;

[0054] The above two matching methods are helpful for adjusting the jitter stroke or better achieving the control and adjustment effect, and can be selectively added when the cost permits.

[0055] Furthermore, a barometer is installed at the outer ends of the first air hole 803 and the second air hole 1002 to detect the air pressure change in the sleeve 7. By detecting the air pressure change, the tension state of the conveyor belt 3 can be known and adjusted immediately, or the jitter state of the moving roller 11 can be detected by the barometer to improve the detection effect.

[0056] In this case, the position of the moving roller 11 is adjusted by using air pressure and the elastic part 1003, and the moving roller 11 has a certain jitter space, avoiding tearing caused by the excessive rigidity of the moving roller 11; In this case, the ability of immediate adjustment is realized through the driving component, and the adjustment options are more diverse and the adjustment is more flexible through the first air hole 803 and the second air hole 1002.

[0057] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A needling machine with a tension adjustment device, comprising a conveying device (1), a needling mechanism (2), and a conveying belt (3), wherein the conveying device (1) is used to realize the circulating transmission of the conveying belt (3), and the needling mechanism (2) is installed at the upper end of the conveying device (1) and faces the conveying belt (3), characterized in that: A mounting frame (4) is installed at the lower end of the conveying device (1), a sliding frame (6) is fixedly installed at the lower end of the mounting frame (4), a through slot is penetrated through the inner side of the sliding frame (6), a connecting frame (601) is slidably installed inside the through slot, and a connecting portion (603) for fixing a moving roller (11) is integrally formed on the side of the connecting frame (601) facing the conveyor belt (3), and the moving roller (11) is in sliding contact with the inner end surface of the conveyor belt (3); A sleeve (7) is provided on one side of the sliding frame (6), and the upper and lower ends of the sleeve (7) are respectively threadedly connected with a first cover (8) and a second cover (10), and the first cover (8) and the second cover (10) are respectively slidably inserted with a first slide bar (801) and a second slide bar (1001) inside. The first slide bar (801) and the second slide bar (1001) are respectively integrally formed with a first sliding part (804) and a second sliding part (1004) that play a sealing and sliding role at one end of the first slide bar (801) and the second slide bar (1001) located inside the sleeve (7), and a driving component that is transmission-connected with the first slide bar (801) is rotatably installed at the outer end of the first cover (8), and the driving component is used to control the length of the first slide bar (801) inserted into the sleeve (7), and an elastic member (1003) is elastically abutted between the second sliding part (1004) and the second cover (10), and the outer end of the second slide bar (1001) is fixedly connected to the connecting frame (601).

2. A needling machine with a tension adjustment device according to claim 1, characterized in that: The driving assembly comprises a rotating part (9) rotatably mounted inside the first cover (8), one end of the rotating part (9) extending to the outer side of the first cover (8) and integrally formed with a first transmission member (901), a second transmission member (902) being transmission-mounted on one side of the first transmission member (901), the first transmission member (901) being a worm gear, and the second transmission member (902) being a worm.

3. The needling machine with a tension adjustment device according to claim 1, characterized in that: The first sliding rod (801) and the second sliding rod (1001) are respectively provided with a first air hole (803) and a second air hole (1002) therein, and an air delivery port is integrally formed at one end of the outer side of the first air hole (803) and the second air hole (1002).

4. A needling machine with a tension adjustment device according to claim 3, characterized in that: One ends of the two groups of air delivery ports are both connected to the valve core, and the input end of one group of the valve core is connected to an air pump.

5. The needling machine with a tension adjustment device according to claim 3, characterized in that: One end of the two groups of gas delivery ports are respectively connected to an air pump and a solenoid valve.

6. A needling machine with a tension adjustment device according to claim 3, characterized in that: A barometer is installed at one end of the outer side of the first air hole (803) and the second air hole (1002).

7. The needling machine with a tension adjustment device according to claim 1, characterized in that: Fixed rollers (5) are rotatably mounted on both ends of the sliding frame (6) via a rotating shaft, and the outer end surface of the conveyor belt (3) is in sliding contact with the opposite side of the two groups of fixed rollers (5).

8. The needling machine with a tension adjustment device according to claim 7, characterized in that: The two groups of fixed rollers (5) and one group of movable rollers (11) together form an isosceles triangle structure.

9. The needling machine with a tension adjustment device according to claim 1, characterized in that: One end of the connecting frame (601) located inside the through slot opened by the sliding frame (6) is rotatably mounted with multiple sets of sliding wheels (602), and the sliding wheels (602) are arranged in four sets in a rectangular shape.

10. The needling machine with a tension adjustment device according to claim 1, characterized in that: The inner side of the first cover (8) and the outer end surface of the first slide bar (801) are both provided with a limiting slide groove (802), so that the first cover (8) and the first slide bar (801) can only slide longitudinally.

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