A palletizer with counterweights

Abstract

The utility model provides a kind of stacking machine with counterweight, including rack, motor is arranged on the upper portion of rack, speed reducer, the output of speed reducer is connected by lifting chain assembly and is connected with the package clamp device of brick block, and the movement of package clamp device in vertical direction is controlled, rack side end is provided with counterweight, counterweight box is connected with package clamp device along the rack in vertical direction and moves reversely with package clamp device by auxiliary lifting chain, counterweight box loads the weight of package clamp device, auxiliary lifting chain is fixed on the rack, and is engaged with the counterweight gear being arranged on the top of counterweight box, auxiliary gear set being arranged on the rack, lifting gear being arranged above package clamp device respectively.In the stacking machine, counterweight box is arranged, motor and speed reducer only need to provide difference and not all force, can reduce motor power and speed reducer torque, to reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of brick-making equipment technology, specifically to a stacking machine with counterweight. Background Technology

[0002] Existing block forming machines with automatic stacking equipment generally use hydraulic cylinders for lifting or motors with reducers to drive the grabbing device for lifting. However, hydraulic cylinder lifting requires pump stations, oil tanks, valve blocks, pipelines, etc., which occupy a large area, pose a risk of oil leakage, and require high professional maintenance. On the other hand, motors with reducers must be able to directly overcome the weight of the entire grabbing device (including the bricks) for lifting and acceleration, which places very high demands on the torque of the reducer and the power of the motor. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a counterweight palletizing machine to solve the technical problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides a palletizing machine with counterweight, including a frame. A motor and a reducer are arranged on the top of the frame. The output end of the reducer is connected to a clamping device for gripping bricks via a lifting chain assembly, and controls the vertical movement of the clamping device. A counterweight is arranged on the side of the frame. The counterweight box is connected to the clamping device via an auxiliary lifting chain and moves in the opposite direction to the clamping device in the vertical direction along the frame. The counterweight box bears the weight of the clamping device. The auxiliary lifting chain is fixed on the frame and meshes with a counterweight gear arranged on the top of the counterweight box, an auxiliary gear set arranged on the frame, and a lifting gear arranged above the clamping device.

[0005] The frame is also equipped with a lifting frame, which includes a fixed frame located above the frame, a lifting arm that moves vertically along the inner wall of the fixed frame, and a connecting plate located at the lower end of the fixed frame. The bottom of the lifting arm is connected to the clamping device. The motor and reducer are fixed on the fixed frame, and the fixed frame slides horizontally along the length of the frame.

[0006] The frame includes a support frame and columns. The support frame is rectangular, and there are four columns, which are respectively located at the four corners below the support frame.

[0007] The lifting chain assembly includes a drive gear disposed at the output end of the reducer, a driven gear disposed inside the fixed frame, a coaxial driven gear rotating coaxially with the driven gear, a second driven gear disposed inside the fixed frame, a drive chain connecting the drive gear and the driven gear, and a lifting chain connecting the coaxial driven gear or the second driven gear to the lifting arm. The two ends of the drive chain mesh with the drive gear and the driven gear respectively, and the drive chain drives the driven gear to rotate. The lifting chain includes a first lifting chain and a second lifting chain. One end of the first lifting chain is connected to the coaxial driven gear, and the other end is connected to the lower side of the lifting arm via a connecting frame. One end of the second lifting chain is connected to the top side of the lifting arm, and the other end is connected to the second driven gear. The second driven gear rotates synchronously in the opposite direction to the coaxial driven gear via an auxiliary gear. The coaxial driven gear rotates coaxially with the driven gear and drives the clamping device to move vertically via the lifting chain.

[0008] The frame is provided with a slide rail along its vertical direction, the length direction of the slide rail is consistent with the length direction of the column, and the counterweight box is disposed in the slide rail and moves along the slide rail.

[0009] The auxiliary gear set includes a first auxiliary gear disposed on the side end of the support frame, a second auxiliary gear disposed on the side end of the connecting plate, and a third auxiliary gear disposed on the side end of the support frame. The first auxiliary gear, the second auxiliary gear, and the third auxiliary gear are at the same horizontal height. One end of the auxiliary lifting chain is connected to the side end of the support frame, and the other end is sequentially meshed with and fixed to the side end of the support frame by the counterweight gear, the first auxiliary gear, the second auxiliary gear, the lifting gear, and the third auxiliary gear. The counterweight gear, the first auxiliary gear, the second auxiliary gear, the lifting gear, and the third auxiliary gear are arranged sequentially along the length of the frame.

[0010] The first auxiliary gear, the second auxiliary gear, the third auxiliary gear, the counterweight gear, the lifting gear, and the auxiliary lifting chain are all in pairs and are arranged parallel to each other in the vertical direction.

[0011] The counterweight box contains multiple counterweight blocks whose number can be increased or decreased.

[0012] The advantages of a counterweight palletizer obtained through the above technical solution are:

[0013] By installing a counterweight box on the palletizer, the motor and reducer only need to provide the differential force instead of the full force, which can reduce the motor power and reducer torque, thereby reducing costs.

[0014] With the same driving power, the system can achieve higher lifting acceleration and speed because the net force to be overcome is smaller, thereby improving the overall cycle time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the counterweight palletizer (clamping device descending) described in this utility model;

[0016] Figure 2 This is a structural schematic diagram of the counterweight palletizer (clamping device lifting) described in this utility model;

[0017] Figure 3 This is a schematic diagram of the counterweight and slide rail described in this utility model.

[0018] In the diagram, 1. Frame; 2. Reducer; 3. Lifting chain assembly; 4. Clamping device; 5. Counterweight box; 6. Auxiliary lifting chain; 7. Auxiliary gear set; 8. Lifting frame; 9. Slide rail; 11. Support frame; 12. Column; 31. Drive gear; 32. Coaxial driven gear; 33. Second driven gear; 34. Drive chain; 35. Lifting chain; 35a. First lifting chain; 35b. Second lifting chain; 4a. Lifting gear; 5a. Counterweight gear; 5b. Counterweight block; 71. First auxiliary gear; 72. Second auxiliary gear; 73. Third auxiliary gear; 81. Fixed frame; 82. Lifting arm; 83. Connecting plate. Detailed Implementation

[0019] Further embodiments of the present invention will be described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] like Figure 1-2 As shown, a counterweight palletizing machine includes a frame 1. A motor and a reducer 2 are mounted on the top of the frame 1. The output end of the reducer 2 is connected to a clamping device 4 for gripping bricks via a lifting chain assembly 3, and controls the vertical movement of the clamping device 4. A counterweight box 5 is mounted on the side of the frame 1. The counterweight box 5 is connected to the clamping device 4 via an auxiliary lifting chain 6 and moves in the opposite direction to the clamping device 4 in the vertical direction along the frame 1. The counterweight box 5 bears the weight of the clamping device 4 and can bear part of the weight of the clamping device 4 and the bricks it grips. The auxiliary lifting chain 6 is fixed on the frame 1 and meshes with a counterweight gear 5a mounted on the top of the counterweight box 5, an auxiliary gear set 7 mounted on the frame 1, and a lifting gear 4a mounted above the clamping device 4.

[0021] By setting the counterweight box 5, the weight that the motor and reducer 2 need to overcome is the weight of the clamping device 4 and the brick it grabs minus the weight of the counterweight box 5. Ideally, the weight of the counterweight box 5 is set to be approximately equal to the weight of the unloaded clamping device 4 plus a portion (e.g., 50%-90%) of the weight of the brick. At this time, since the system is close to the equilibrium state, the impact force when the motor starts, stops and reverses will be greatly reduced.

[0022] The frame is also equipped with a lifting frame 8, which includes a fixed frame 81 located above the frame 1, a lifting arm 82 that moves vertically along the inner wall of the fixed frame 81, and a connecting plate 83 located at the lower end of the fixed frame 81. The bottom of the lifting arm 82 is connected to the clamping device 4. The motor and reducer 2 are fixed to the fixed frame 81, and the fixed frame 81 slides horizontally along the length of the frame 11. The fixed frame 81 can be driven horizontally by means of motor drive, etc., so that the clamping device 4 connected to the bottom of the lifting arm 82 can move horizontally synchronously and grab the brick to a suitable position.

[0023] The frame 1 includes a support frame 11 and columns 12. The support frame 11 is rectangular, and there are four columns 12, which are respectively located at the four corners below the support frame 11.

[0024] The lifting chain assembly 3 includes a drive gear 31 disposed at the output end of the reducer, a driven gear disposed inside the fixed frame 81, a coaxial driven gear 32 coaxially rotating with the driven gear, a second driven gear 33 disposed inside the fixed frame 81, a drive chain 34 connecting the drive gear 31 and the driven gear, and a lifting chain 35 connecting the coaxial driven gear 32 or the second driven gear to the lifting arm 82. The two ends of the drive chain 34 mesh with the drive gear 31 and the driven gear respectively, and the drive chain 34 drives the driven gear to rotate. The lifting chain 35 includes... The first lifting chain 35a and the second lifting chain 35b are connected. One end of the first lifting chain 35a is connected to the coaxial driven gear 32, and the other end is connected to the lower side of the lifting arm 82 through a connecting frame. The drive gear 31 at the output end of the motor and reducer rotates, which drives the driven gear to rotate through the drive chain 34, and then drives the coaxial driven gear 32, which is coaxial with the driven gear, to rotate. After the coaxial driven gear 32 rotates, if it rotates counterclockwise, the bottom of the first lifting chain 35a moves upward, which in turn drives the lifting arm 82 connected to the bottom of the first lifting chain 35a to move up and down along the fixed frame 81, and the clamping device 4 connected to the lifting arm 82 moves up and down.

[0025] One end of the second lifting chain 35b is connected to the top side of the lifting arm 82, and the other end is connected to the second driven gear 33. The second driven gear 33 rotates synchronously in the opposite direction with the coaxial driven gear 32 through an auxiliary gear. The second lifting chain 35b is used to increase the vertical load-bearing capacity and increase the overall stability of the lifting chain 35. In use, since the second driven gear 33 and the coaxial driven gear 32 rotate synchronously in the opposite direction, when the coaxial drive gear 32 rotates counterclockwise, the second driven gear 33 rotates clockwise. The second lifting chain 35b extends upward and moves upward synchronously with the lifting arm 82 that moves upward.

[0026] The coaxial driven gear 32 rotates coaxially with the driven gear and drives the clamping device 4 to move in the vertical direction through the lifting chain 35.

[0027] The frame 1 is provided with a slide rail 9 along its vertical direction. The length direction of the slide rail 9 is consistent with the length direction of the column 12. The counterweight box 5 is disposed within the slide rail 9 and moves along the slide rail 9. The movement of the counterweight box 5 is restricted within the slide rail 9 to prevent its lateral swing from causing instability of the equipment and collision accidents.

[0028] The auxiliary gear set 7 includes a first auxiliary gear 71 disposed on the side end of the support frame 11, a second auxiliary gear 72 disposed on the side end of the connecting plate 83, and a third auxiliary gear 73 disposed on the side end of the connecting plate 83. The first auxiliary gear 71, the second auxiliary gear 72, and the third auxiliary gear 73 are at the same horizontal height. One end of the auxiliary lifting chain 6 is connected to the side end of the support frame 11, and the other end is sequentially meshed with and fixed to the side end of the support frame 11 by the counterweight gear 5a, the first auxiliary gear 71, the second auxiliary gear 72, the lifting gear 4a, and the third auxiliary gear 73. The counterweight gear 5a, the first auxiliary gear 71, the second auxiliary gear 72, the lifting gear 4a, and the third auxiliary gear 73 are arranged sequentially along the length of the frame 1. When the clamping device 4 moves upward, the lifting gear 4a moves upward accordingly. At this time, the weight of the auxiliary lifting chain 6 between the second auxiliary gear 72 and the third auxiliary gear 73 decreases. Therefore, the counterweight box 5 stretches the lifting chain 6 and descends due to gravity, while providing an upward force to the auxiliary clamping device 4.

[0029] The first auxiliary gear 71, the second auxiliary gear 72, the third auxiliary gear 73, the counterweight gear 5a, the lifting gear 8, and the auxiliary lifting chain 6 are all in pairs and are arranged parallel to each other in the vertical direction. This increases the overall stability of the equipment and prevents excessive load on a single auxiliary lifting chain 6, which could damage the equipment.

[0030] like Figure 3As shown, the counterweight box 5 is equipped with multiple counterweight blocks 5b that can be increased or decreased in number. The counterweight blocks 5b can be increased or decreased according to the weight of the bricks to balance the weight within a suitable range and achieve the best effect.

[0031] When it is necessary to grab a brick, the motor drives the lifting chain assembly 3 through the reducer 2, so that the clamping device 4 moves downward. At the same time as the clamping device 4 descends, the counterweight box 5 moves upward. At this time, the force required by the motor drive is the weight of the clamping device 4 itself minus the weight of the counterweight box 5. After reaching the specified height, the descent stops and the clamping device 4 clamps the brick. The weight of the counterweight box 5 can be appropriately increased according to the weight of the brick.

[0032] When it is necessary to lift the bricks, the motor drives the lifting chain assembly 3 through the reducer 2, which causes the clamping device 4 to move upward. At the same time as the clamping device 4 rises, the counterweight box 5 moves downward. At this time, the force required by the motor drive is the weight of the clamping device itself plus the weight of the brick minus the weight of the counterweight box 5.

[0033] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A counterweight palletizing machine, comprising a frame (1), wherein a motor and a reducer (2) are disposed on the top of the frame (1), the output end of the reducer (2) is connected to a clamping device (4) for gripping bricks via a lifting chain assembly (3), and the clamping device (4) is controlled to move vertically, characterized in that, A counterweight box (5) is provided on the side of the frame (1). The counterweight box (5) is connected to the clamping device (4) through an auxiliary lifting chain (6) and moves in the opposite direction to the clamping device (4) in the vertical direction along the frame (1). The counterweight box (5) bears the weight of the clamping device (4). The auxiliary lifting chain (6) is fixed on the frame (1) and meshes with the counterweight gear (5a) on the top of the counterweight box (5), the auxiliary gear set (7) on the frame (1), and the lifting gear (4a) above the clamping device (4).

2. A palletizer with counterweight according to claim 1, characterized in that, The frame is also provided with a lifting frame (8), which includes a fixed frame (81) above the frame (1), a lifting arm (82) that moves vertically along the inner wall of the fixed frame (81), and a connecting plate (83) at the lower end of the fixed frame (81). The bottom of the lifting arm (82) is connected to the clamping device (4). The motor and reducer (2) are fixed on the fixed frame (81), and the fixed frame (81) slides horizontally along the length of the frame (1).

3. A palletizing machine with counterweight according to claim 2, characterized in that, The frame (1) includes a support frame (11) and columns (12). The support frame (11) is rectangular, and there are four columns (12), which are respectively located at the four corners below the support frame (11).

4. A palletizing machine with counterweight according to claim 2, characterized in that, The lifting chain assembly (3) includes a drive gear (31) disposed at the output end of the reducer, a driven gear disposed inside the fixed frame (81), a coaxial driven gear (32) rotating coaxially with the driven gear, a second driven gear (33) disposed inside the fixed frame (81), a drive chain (34) connecting the drive gear (31) and the driven gear, and a lifting chain (35) connecting the coaxial driven gear (32) or the second driven gear with the lifting arm (82). The two ends of the drive chain (34) are respectively engaged with the drive gear (31) and the driven gear. The drive chain (34) drives the driven gear to rotate. The lifting chain (35) includes a first lifting chain (35a) and a second lifting chain (35b). One end of the first lifting chain (35a) is connected to the coaxial driven gear (32), and the other end is connected to the lower side of the lifting arm (82) through a connecting frame. One end of the second lifting chain (35b) is connected to the top side of the lifting arm (82), and the other end is connected to the second driven gear (33). The second driven gear (33) rotates synchronously in the opposite direction to the coaxial driven gear (32) through an auxiliary gear. The coaxial driven gear (32) rotates coaxially with the driven gear and drives the clamping device (4) to move in the vertical direction through the lifting chain (35).

5. A palletizer with counterweight according to claim 3, characterized in that, The frame (1) is provided with a slide (9) in the vertical direction. The length direction of the slide (9) is consistent with the length direction of the column (12). The counterweight box (5) is set in the slide (9) and moves along the slide (9).

6. A palletizing machine with counterweight according to claim 3, characterized in that, The auxiliary gear set (7) includes a first auxiliary gear (71) disposed on the side end of the support frame (11), a second auxiliary gear (72) disposed on the side end of the connecting plate (83), and a third auxiliary gear (73). The first auxiliary gear (71), the second auxiliary gear (72), and the third auxiliary gear (73) are at the same horizontal height. One end of the auxiliary lifting chain (6) is connected to the side end of the support frame (11), and the other end is sequentially meshed with and fixed to the side end of the support frame (11) by the counterweight gear (5a), the first auxiliary gear (71), the second auxiliary gear (72), the lifting gear (4a), and the third auxiliary gear (73). The counterweight gear (5a), the first auxiliary gear (71), the second auxiliary gear (72), the lifting gear (4a), and the third auxiliary gear (73) are arranged sequentially along the length direction of the frame (1).

7. A palletizer with counterweight according to claim 6, characterized in that, The first auxiliary gear (71), the second auxiliary gear (72), the third auxiliary gear (73), the counterweight gear (5a), the lifting gear (4a), and the auxiliary lifting chain (6) are all in pairs and are arranged parallel to each other in the vertical direction.

8. A palletizing machine with counterweight according to claim 1, characterized in that, The counterweight box (5) is equipped with multiple counterweight blocks (5b) whose number can be increased or decreased.

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