Balance mechanism of hydraulic swing arm cutting machine

Abstract

The utility model relates to the technical field of hydraulic swing arm cutting machines, and discloses a balance mechanism of a hydraulic swing arm cutting machine, which comprises a case, a swing arm and a hydraulic cylinder, and the balance mechanism and a stabilizing mechanism are arranged in the case; the stabilizing mechanism comprises a storage cavity formed in the machine box, a moving plate is slidably connected into the storage cavity, universal wheels are fixedly arranged at the bottom of the moving plate, a limiting notch communicating with the storage cavity is formed in the bottom of the machine box, and a groove is formed in the storage cavity. A second motor is started to enable a bidirectional screw rod to rotate reversely, so that the upper ends of two connecting hinge rods are far away from each other, the lower ends of the connecting hinge rods can pull a moving plate and universal wheels into a containing cavity through fixing blocks, and the swing arm cutting machine is stably supported by a supporting pad; and the situation that vibration and acting force generated when the swing arm cutting machine works enable the universal wheels to move, consequently, equipment deviates or shakes, and the balance stability is influenced when the swing arm swings is avoided.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic swing arm cutting machine technology, specifically to a balancing mechanism for a hydraulic swing arm cutting machine. Background Technology

[0002] A swing arm cutting machine is a type of cutting machine used in industry for cutting one or more layers of leather, plastic, canvas, nylon, fiber, paperboard and various synthetic materials. It is the first choice for cutting small areas of genuine leather. Its advantages are that the swing arm cutting head provides the best line of sight during operation, makes material selection the most convenient, and has sufficient pressure, making it suitable for cutting any soft material and very suitable for cutting small areas of non-metallic materials.

[0003] Chinese patent provides a balancing mechanism for the swing arm of a hydraulic rocker arm cutting machine, publication number CN110434933B. It includes a rocker arm housing, a balancing drive mechanism, a balancing guide mechanism, and a rocker arm. The balancing drive mechanism is installed at the bottom inside the rocker arm housing. A base is fixedly connected to the bottom of the rocker arm housing. Several moving wheels are fixedly connected to the bottom of the base. A hydraulic cylinder is installed at the top of the balancing drive mechanism. The end of the hydraulic cylinder away from the balancing drive mechanism passes through the top wall of the rocker arm housing. A hydraulic rod is fixedly connected to the output end of the hydraulic cylinder, and the rocker arm is fixedly connected to the top of the hydraulic rod.

[0004] The aforementioned device has the effect of stably controlling the balance of the swing arm. The bottom of the device is equipped with moving wheels to facilitate the movement of the device. However, when using a hydraulic swing arm cutting machine, the equipment needs to remain stable in order to ensure the cutting effect. The vibration and force generated by the equipment during operation may cause the moving wheels to move, causing the equipment to deviate or even shake, thereby affecting the use of the hydraulic swing arm cutting machine. Therefore, a balancing mechanism for the hydraulic swing arm cutting machine is needed. Utility Model Content

[0005] The purpose of this utility model is to provide a balancing mechanism for a hydraulic swing arm cutting machine, so as to solve the problem that the vibration and force generated during the use of the existing hydraulic swing arm cutting machine may cause the moving wheels to move, thereby affecting the balance and stability of the hydraulic swing arm cutting machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a balancing mechanism for a hydraulic swing arm cutting machine, comprising a housing, a swing arm, and a hydraulic cylinder. The housing contains a balancing mechanism and a stabilizing mechanism. The stabilizing mechanism includes a storage cavity within the housing, a sliding plate slidably connected within the storage cavity, a caster wheel fixedly mounted on the bottom of the sliding plate, a limiting slot communicating with the storage cavity on the bottom of the housing, a groove within the storage cavity, and a support pad fixedly fitted onto one end of the housing near the bottom. A bidirectional lead screw is rotatably mounted within the groove, a second motor is fixedly mounted at one end of the housing, one end of the bidirectional lead screw rotatably passes through the groove and is fixedly connected to the shaft of the second motor, both ends of the bidirectional lead screw are threadedly connected to moving blocks, a fixed block is fixedly mounted on the moving plate, and a connecting hinge rod is hinged between the fixed block and the moving block.

[0007] Preferably, a slide rod is fixedly installed in the groove, the slide rod is slidably connected to the moving block, a protective shell is fixedly installed at one end of the chassis, the second motor is installed inside the protective shell, and a heat dissipation vent is provided on the protective shell.

[0008] Preferably, the balancing mechanism includes a movable cavity opened inside the chassis, a bearing seat fixedly disposed inside the movable cavity, a hydraulic cylinder rotatably disposed on the bearing seat, and the top of the hydraulic cylinder rotatably penetrating the movable cavity and extending to the top of the chassis.

[0009] Preferably, a driven gear is fixedly sleeved on the hydraulic cylinder, an electric slide rail is fixedly installed in the movable cavity, a first motor and a reducer are fixedly installed on the slider of the electric slide rail, the shaft of the first motor is connected to the reducer for transmission, and a driving gear that meshes with the driven gear is fixedly installed on the shaft of the reducer.

[0010] Preferably, a mounting sleeve is fixedly provided on the hydraulic cylinder, a connecting plate is fixedly provided on the mounting sleeve, an auxiliary roller is fixedly provided at the bottom of the connecting plate, and a slide rail adapted to the auxiliary roller is provided on the housing.

[0011] Preferably, the swing arm is fixedly sleeved on the hydraulic rod of the hydraulic cylinder, a counterweight is fixedly connected to one end of the swing arm, mounting blocks are fixedly installed on both sides of the swing arm, a fixing plate is fixedly sleeved on the hydraulic rod of the hydraulic cylinder, and a reinforcing plate is fixedly installed between the fixing plate and the mounting block.

[0012] Preferably, a cutting table is fixedly installed on the chassis, a handle is fixedly installed on the swing arm, and an adjusting wheel is fixedly installed on the hydraulic rod of the hydraulic cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1) The balancing mechanism of the hydraulic swing arm cutting machine uses the second motor to rotate the bidirectional lead screw in the opposite direction, causing the upper ends of the two connecting hinge rods to move away from each other. This allows the lower ends of the connecting hinge rods to pull the moving plate and caster wheel back into the cavity through the fixing block. The support pad provides stable support for the swing arm cutting machine, preventing the caster wheel from moving due to vibration and force generated during operation, which could cause the equipment to deviate or shake, affecting the balance and stability of the swing arm.

[0015] 2) The balancing mechanism of the hydraulic swing arm cutting machine rotates the bidirectional lead screw by starting the second motor, so that the two moving blocks that are threaded to both ends of the bidirectional lead screw can move towards each other under the limit of the slide rod, so that the connecting hinge rod retracts and pushes the moving plate downward through the fixed block until the moving plate is tightly against the limit groove. At this time, the universal wheel extends out from the limit groove and lifts the machine box, and then the hydraulic swing arm cutting machine can be moved, which improves the flexibility of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the balancing mechanism of a hydraulic swing arm cutting machine according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the movable cavity in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the storage cavity in an embodiment of this utility model;

[0019] Figure 4 As an embodiment of this utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0020] Figure 5 This is a three-dimensional structural diagram of the balancing mechanism in an embodiment of this utility model.

[0021] In the diagram: 1. Chassis; 2. Cutting table; 3. Swing arm; 4. Handle; 5. Hydraulic cylinder; 6. Adjusting wheel; 7. Balancing mechanism; 701. Movable cavity; 702. Driven gear; 703. Electric slide rail; 704. First motor; 705. Reducer; 706. Drive gear; 707. Shaft seat; 708. Mounting sleeve; 709. Connecting plate; 710. Auxiliary roller; 711. Slide rail; 712. Mounting block; 7 13. Fixed plate; 714. Reinforcing plate; 715. Counterweight; 8. Stabilizing mechanism; 801. Storage cavity; 802. Moving plate; 803. Casters; 804. Limiting groove; 805. Fixed block; 806. Groove; 807. Two-way lead screw; 808. Slide rod; 809. Moving block; 810. Connecting hinge rod; 811. Protective shell; 812. Second motor; 813. Heat dissipation vent; 814. Support pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Combination Figures 1-5 A balancing mechanism for a hydraulic swing arm cutting machine includes a housing 1, a swing arm 3, and a hydraulic cylinder 5. A cutting table 2 is fixedly installed on the housing 1, a handle 4 is fixedly installed on the swing arm 3, an adjusting wheel 6 is fixedly installed on the hydraulic rod of the hydraulic cylinder 5, and a balancing mechanism 7 and a stabilizing mechanism 8 are installed inside the housing 1.

[0025] See Figure 2 , Figure 3 and Figure 5 Furthermore, the balancing mechanism 7 includes a movable cavity 701 opened inside the housing 1. A bearing seat 707 is fixedly installed inside the movable cavity 701. A hydraulic cylinder 5 is rotatably mounted on the bearing seat 707. The top of the hydraulic cylinder 5 rotatably passes through the movable cavity 701 and extends to the top of the housing 1. A driven gear 702 is fixedly sleeved on the hydraulic cylinder 5. An electric slide rail 703 is fixedly installed inside the movable cavity 701. A first motor 704 and a reducer 705 are fixedly installed on the slider of the electric slide rail 703. The rotating shaft of the first motor 704 is connected to the reducer 705 for transmission. A gear 702 is fixedly installed on the rotating shaft of the reducer 705. The drive gear 706 meshes with the wheel 702. The hydraulic cylinder 5 is fixedly equipped with an installation sleeve 708. The installation sleeve 708 is fixedly equipped with a connecting plate 709. The bottom of the connecting plate 709 is fixedly equipped with an auxiliary roller 710. The housing 1 is provided with a slide rail 711 adapted to the auxiliary roller 710. The swing arm 3 is fixedly sleeved on the hydraulic rod of the hydraulic cylinder 5. One end of the swing arm 3 is fixedly connected to a counterweight block 715. Both sides of the swing arm 3 are fixedly equipped with installation blocks 712. The hydraulic rod of the hydraulic cylinder 5 is fixedly sleeved with a fixing plate 713. A reinforcing plate 714 is fixedly installed between the fixing plate 713 and the installation block 712.

[0026] Specifically, when the hydraulic swing arm cutting machine is in use, the hydraulic cylinder 5 drives the swing arm 3 to rise and fall. The cutting blade at the bottom of the swing arm 3 moves down to cut the workpiece on the cutting table 2. The first motor 704 drives the reducer 705 and the drive gear 706 to rotate in both directions. The drive gear 706 drives the driven gear 702, which meshes with it, to rotate. The driven gear 702 drives the hydraulic cylinder 5 and the swing arm 3 to rotate, realizing the swing of the swing arm 3. Because the meshing connection between the drive gear 706 and the driven gear 702 has a good self-locking function, it can effectively avoid the rotational fluctuation after the swing arm 3 swings, so that the swing arm 3 has stable and balanced performance when swinging. The electric slide rail 703 can drive the first motor 704 and the reducer 705 to move, so that the drive gear 706 can move away from or closer to the driven gear 702. It engages with the drive gear 706 to achieve manual and mechanical balance drive of the swing arm 3. Then, the operator rotates the swing arm 3 by adjusting the wheel 6, and then controls the electric slide rail 703 to bring the drive gear 706 and driven gear 702 closer together to mesh, so as to avoid the swing arm 3 from turning back due to excessive manual drive force and ensure the reliability of the self-locking mechanism of the swing arm 3. During the swing of the swing arm 3, the hydraulic cylinder 5 drives the connecting plate 709 on the mounting sleeve 708 to rotate, so that the auxiliary roller 710 at the bottom of the connecting plate 709 rolls in the slide rail 711 on the housing 1, which effectively prevents the swing arm 3 from deviating during swing and improves the balance of the swing arm 3. At the same time, the reinforcement structure composed of the mounting block 712, the fixing plate 713 and the reinforcing plate 714 can further improve the structural stability and structural strength of the swing arm 3 and ensure the smooth operation of the swing arm 3.

[0027] Example 2

[0028] See Figures 2-4 Furthermore, based on Embodiment 1, the stabilizing mechanism 8 includes a storage cavity 801 opened inside the housing 1, a movable plate 802 slidably connected inside the storage cavity 801, a caster wheel 803 fixedly installed at the bottom of the movable plate 802, a limiting slot 804 communicating with the storage cavity 801 opened at the bottom of the housing 1, a groove 806 opened inside the storage cavity 801, and a support pad 814 fixedly fitted on one end of the housing 1 near the bottom; a bidirectional lead screw 807 rotatably installed inside the groove 806, and a second motor 812 fixedly installed at one end of the housing 1. One end of the screw 7 is rotatably connected through the groove 806 and fixedly connected to the shaft of the second motor 812. Both ends of the bidirectional lead screw 807 are threadedly connected to the moving blocks 809. A fixed block 805 is fixedly installed on the moving plate 802. A connecting hinge rod 810 is hinged between the fixed block 805 and the moving block 809. A slide rod 808 is fixedly installed in the groove 806. The slide rod 808 is slidably connected to the moving block 809. A protective shell 811 is fixedly installed at one end of the housing 1. The second motor 812 is installed inside the protective shell 811. A heat dissipation vent 813 is opened on the protective shell 811.

[0029] Specifically, when moving the hydraulic swing arm cutting machine, the second motor 812 is started to rotate the bidirectional lead screw 807, so that the two moving blocks 809, which are threaded to both ends of the bidirectional lead screw 807, can move towards each other under the limit of the slide rod 808. This causes the connecting hinge rod 810 to retract and pushes the moving plate 802 downward through the fixing block 805 until the moving plate 802 is tightly against the limiting slot 804. At this time, the universal wheel 803 extends out from the limiting slot 804 and lifts the machine box 1. Then the hydraulic swing arm cutting machine can be moved. After adjusting the use position of the hydraulic swing arm cutting machine, the second motor 812 is controlled to rotate the bidirectional lead screw 807 in the opposite direction, causing the connecting hinge rod 810 to expand outward and pull the moving plate 802 and the universal wheel 803 back into the receiving cavity 801. At this time, the support pad 814 provides stable support for the swing arm cutting machine.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A balancing mechanism for a hydraulic swing arm cutting machine, comprising a housing (1), a swing arm (3), and a hydraulic cylinder (5), characterized in that: The chassis (1) is equipped with a balancing mechanism (7) and a stabilizing mechanism (8); The stabilizing mechanism (8) includes a storage cavity (801) opened inside the chassis (1), a movable plate (802) is slidably connected inside the storage cavity (801), a universal wheel (803) is fixedly provided at the bottom of the movable plate (802), a limiting slot (804) communicating with the storage cavity (801) is opened at the bottom of the chassis (1), a groove (806) is opened inside the storage cavity (801), and a support pad (814) is fixedly sleeved on one end of the chassis (1) near the bottom; A bidirectional lead screw (807) is rotatably disposed in the groove (806). A second motor (812) is fixedly disposed at one end of the housing (1). One end of the bidirectional lead screw (807) rotatably passes through the groove (806) and is fixedly connected to the rotating shaft of the second motor (812). Both ends of the bidirectional lead screw (807) are threadedly connected to moving blocks (809). A fixing block (805) is fixedly disposed on the moving plate (802). A connecting hinge rod (810) is hinged between the fixing block (805) and the moving block (809).

2. The balancing mechanism of a hydraulic swing arm cutting machine according to claim 1, characterized in that: A slide rod (808) is fixedly installed in the groove (806). The slide rod (808) is slidably connected to the moving block (809). A protective shell (811) is fixedly installed at one end of the chassis (1). The second motor (812) is installed in the protective shell (811). A heat dissipation vent (813) is opened on the protective shell (811).

3. The balancing mechanism of a hydraulic swing arm cutting machine according to claim 1, characterized in that: The balancing mechanism (7) includes a movable cavity (701) opened inside the housing (1), a bearing seat (707) is fixedly installed inside the movable cavity (701), and the hydraulic cylinder (5) is rotatably mounted on the bearing seat (707). The top of the hydraulic cylinder (5) rotatably passes through the movable cavity (701) and extends to the top of the housing (1).

4. The balancing mechanism of a hydraulic swing arm cutting machine according to claim 3, characterized in that: A driven gear (702) is fixedly sleeved on the hydraulic cylinder (5). An electric slide rail (703) is fixedly installed in the movable cavity (701). A first motor (704) and a reducer (705) are fixedly installed on the slider of the electric slide rail (703). The rotating shaft of the first motor (704) is connected to the reducer (705) for transmission. A driving gear (706) that meshes with the driven gear (702) is fixedly installed on the rotating shaft of the reducer (705).

5. The balancing mechanism of a hydraulic swing arm cutting machine according to claim 3, characterized in that: An mounting sleeve (708) is fixedly installed on the hydraulic cylinder (5), a connecting plate (709) is fixedly installed on the mounting sleeve (708), an auxiliary roller (710) is fixedly installed at the bottom of the connecting plate (709), and a slide rail (711) adapted to the auxiliary roller (710) is provided on the housing (1).

6. The balancing mechanism of a hydraulic swing arm cutting machine according to claim 1, characterized in that: The swing arm (3) is fixedly sleeved on the hydraulic rod of the hydraulic cylinder (5). A counterweight (715) is fixedly connected to one end of the swing arm (3). Mounting blocks (712) are fixedly installed on both sides of the swing arm (3). A fixing plate (713) is fixedly sleeved on the hydraulic rod of the hydraulic cylinder (5). A reinforcing plate (714) is fixedly installed between the fixing plate (713) and the mounting block (712).

7. The balancing mechanism of a hydraulic swing arm cutting machine according to claim 1, characterized in that: A cutting table (2) is fixedly installed on the machine housing (1), a handle (4) is fixedly installed on the swing arm (3), and an adjusting wheel (6) is fixedly installed on the hydraulic rod of the hydraulic cylinder (5).

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