Lifting stacker crane

Abstract

The utility model discloses a lifting stacker crane which comprises a rotating base, a stand column and a lifting driving motor, an outward extending arm is installed on the outer surface of one side of the stand column, a chain wheel is installed on the top of the stand column, a weight box structure is connected to the other end of a chain, and a rotating arm is rotatably installed at the outer end of the outward extending arm. A second rotation driving motor is further installed at the outer end of the outward extending arm, a clamping and pressing assembly is rotationally installed at the outer end of the rotating arm, and a third rotation driving motor is further installed at the outer end of the rotating arm. The rotating arm is rotatably mounted at the end of the outward extending arm, so that the clamping and transferring distance of the products can be expanded, the products can be stacked in a large space, and due to the fact that the outward extending arm, the rotating arm and the clamping and pressing assembly are large in weight, the products can be stacked in the large space. The weight box structure is installed at the other end of the chain to balance the weight of the abduction arm, the rotating arm and the clamping and pressing assembly, and the load generated when the lifting driving motor drives the abduction arm, the rotating arm and the clamping and pressing assembly to ascend and descend is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of palletizing, in particular to a lifting palletizer. Background Art

[0002] In modern industrial production, as an important equipment on the automated production line, the performance and efficiency of the palletizer are directly related to the overall operation effect of the production line. Traditional palletizers often face problems such as insufficient load capacity, limited operating range and high energy consumption, which to a certain extent restrict the development of automated production lines. Therefore, how to design a palletizer with a reasonable structure, strong load capacity and wide operating range has become a technical problem that needs to be solved in the industry.

[0003] In the prior art, column palletizers are an important type of palletizers. They support and drive the extension arms to lift and rotate through columns to achieve the palletizing of products. However, when the traditional column palletizer lifts the extension arms, due to the large weight of the extension arms themselves, the motor needs to consume a lot of energy to drive them up and down. This not only increases the operating cost, but also easily leads to problems such as motor overheating and wear, which in turn affects the stability and service life of the equipment. In addition, the traditional column palletizer also has certain limitations in its operating range. It is difficult to achieve the palletizing of products in a larger space, and it is even more impossible to effectively transport products over a long distance. For this reason, we provide a lifting palletizer to solve the above problems. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a lifting palletizer.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A lifting palletizer comprises a rotating base capable of rotating, a column with a cavity being installed at the rotating end of the rotating base, an outward arm being installed on the outer surface of one side of the column for lifting and sliding, a sprocket being installed on the top of the column, the other end of the chain wrapped around the outer surface of the sprocket being connected to a counterweight box structure located inside the column, and also comprising a lifting drive motor for driving the outward arm to lift and lower, a rotating arm being rotatably installed on the outer end of the outward arm, a second rotating drive motor for driving the rotating arm to rotate is also installed on the outer end of the outward arm, a clamping and pressing assembly for clamping a product is rotatably installed on the outer end of the rotating arm, and a third rotating drive motor for driving the clamping and pressing assembly to rotate is also installed on the outer end of the rotating arm.

[0007] Preferably, the rotating base includes a base, a rotating base is rotatably mounted on the base, a first rotating drive motor is mounted on the rotating base, the first rotating drive motor drives the rotating base to rotate through the engagement of the gear ring at its power output end, and the column is fixedly mounted on the upper surface of the rotating base.

[0008] Preferably, the clamping and pressing assembly includes a rotating plate rotatably mounted on the outer end of the rotating arm, connecting frames are fixedly mounted on both sides of the rotating plate, clamping structures for clamping are mounted on both sides of the connecting frames, and also includes a pressing structure for pressing the clamped product.

[0009] Preferably, the clamping structure includes a mounting plate fixedly mounted on the bottom surfaces of the two end portions of the connecting frames, a rotating shaft is rotatably mounted between the mounting seats on both sides of the bottom surface of the mounting plate, connecting arms are fixedly mounted on both ends of the rotating shaft, a fixing plate is mounted on the two connecting arms, a plurality of evenly spaced clamping forks are fixedly mounted on the inner side surface of the fixing plate close to the rotating plate, a clamping cylinder is hingedly mounted on the mounting seat on the upper surface of the mounting plate, a transmission plate is hingedly mounted on the driving end of the clamping cylinder, and the other end of the transmission plate passes through the mounting plate and is fixedly connected and mounted to the rotating shaft.

[0010] Preferably, the pressing structure comprises a mounting frame fixedly mounted on the mounting plate at an edge away from the clamping cylinder, a pressing cylinder is fixedly mounted on the mounting frame, and a pressing plate is fixedly mounted on the telescopic end of the pressing cylinder.

[0011] Preferably, the counterweight box structure includes a box body fixedly mounted on the other end of the chain, a plurality of counterweight blocks are stacked inside the box body, a closing plate for closing is provided at the opening of the box body, first rollers capable of rolling against the inner wall of the column are installed at the four corners of the upper surface and the four corners of the lower surface of the box body, and second rollers capable of rolling against the inner wall of the column are installed on both sides of the middle of the upper surface of the box body and both sides of the middle of the lower surface.

[0012] Preferably, a slide rail is fixedly mounted on the outer surface of the column, and the outward extension arm is slidably connected to the column via the slide rail.

[0013] Preferably, dust covers for sealing the slide rail are installed on the top and bottom of the side surfaces of the column, and the dust covers are retracted or extended as the abduction arms are raised or lowered.

[0014] Preferably, limiters for limiting the rotation angle of the connecting arm are installed on both sides of the mounting plate.

[0015] Preferably, the clamping fork is "L" shaped.

[0016] The utility model has the following advantages:

[0017] 1. The utility model can extend the distance for clamping and transferring products by rotatably installing a rotating arm at the end of the outward extension arm, so that the product can be stacked in a larger space. Since the weight of the outward extension arm, the rotating arm and the clamping and pressing assembly is relatively large, a counterweight box structure is installed at the other end of the chain to balance the weight of the outward extension arm, the rotating arm and the clamping and pressing assembly, thereby reducing the load when the lifting drive motor drives the outward extension arm, the rotating arm and the clamping and pressing assembly to rise and fall, thereby improving the service life of the lifting drive motor to a certain extent.

[0018] 2. The utility model drives the column to rotate under the drive of the first rotary drive motor, so that the clamped product can be rotated at multiple angles, and through the linkage of the lifting and lowering of the extension arm, the rotation of the rotating arm and the rotation of the clamping and pressing component, the product can be clamped, transported and stacked at multiple angles.

[0019] 3. The utility model drives the transmission plate to rotate respectively through the clamping cylinders on both sides of the rotating plate, clamps the product in the middle through the connecting arm, the fixed plate and the clamping fork transmission, and realizes the transportation and stacking of the product under the linkage of the rotating base, the lifting drive motor, the second rotating drive motor and the third rotating drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model from the first viewing angle.

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model from the first viewing angle.

[0022] Figure 3 It is a schematic diagram of the clamping and pressing assembly of the utility model.

[0023] Figure 4 It is a schematic diagram of the assembly state of the clamping structure and the pressing structure of the utility model.

[0024] Figure 5 It is a schematic diagram of the clamping structure of the utility model.

[0025] Figure 6 It is a schematic diagram of the pressing structure of the utility model.

[0026] Figure 7 This is a schematic diagram of the structure of the counterweight box of the utility model.

[0027] In the figure, 1, rotating base; 110, base; 120, rotating base; 130, first rotating drive motor; 2, column; 3, lifting drive motor; 4, extension arm; 5, chain; 6, second rotating drive motor; 7, rotating arm; 8, clamping and pressing assembly; 81, rotating plate; 82, connecting frame; 83, clamping structure; 831, mounting plate; 832, rotating shaft; 833, connecting arm; 834, fixing plate; 8 35. Clamping fork; 836. Clamping cylinder; 837. Transmission plate; 84. Pressing structure; 841. Mounting frame; 842. Pressing cylinder; 843. Pressing plate; 85. Limiter; 9. Third rotary drive motor; 10. Counterweight box structure; 101. Box body; 102. Counterweight block; 103. Closing plate; 104. First roller; 105. Second roller; 11. Slide rail; 12. Dust cover; 13. Sprocket. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present application, the product is a bagged product, that is, the product is put into a bag, and the bag containing the product in a flat state can be understood as a cube.

[0031] like Figure 1 — Figure 7 The embodiment shown.

[0032] A lifting palletizer comprises a rotating base 1 capable of rotating, a column 2 with a cavity is installed at the rotating end of the rotating base 1, an outward extension arm 4 is installed on the outer surface of one side of the column 2 for lifting and sliding, a sprocket 13 is installed on the top of the column 2, a chain 5 is wound around the outer surface of the sprocket 13 and the other end is connected to a counterweight box structure 10 located inside the column 2, and also comprises a lifting drive motor 3 for driving the outward extension arm 4 to lift and lower, a rotating arm 7 is rotatably installed on the outer end of the outward extension arm 4, a second rotating drive motor 6 for driving the rotating arm 7 to rotate is also installed on the outer end of the outward extension arm 4, a clamping and pressing assembly 8 for clamping a product is rotatably installed on the outer end of the rotating arm 7, and a third rotating drive motor 9 for driving the clamping and pressing assembly 8 to rotate is also installed on the outer end of the rotating arm 7.

[0033] See also Figures 1 to 7 As shown, first, the column 2 is driven to rotate by the rotating base 1, and the clamping and pressing component 8 is moved to the product position under the action of the lifting drive motor 3, the second rotary drive motor 6 and the third rotary drive motor 9, and the pair is clamped by the clamping and pressing component 8. After clamping, it is moved to the stacking position through the linkage of the column 2, the second rotary drive motor 6 and the third rotary drive motor 9. The sprocket 13 is installed at the output end of the lifting drive motor 3. The lifting drive motor 3 drives the sprocket 13 to rotate, thereby driving the chain 5 to rise and fall, so that the lifting drive motor 3 drives the outreach arm 4 and the rotating arm 7 to descend, thereby driving the clamped product to descend, so that the clamped product is clamped by the clamping and pressing component 8 for stacking and palletizing.

[0034] In the above-mentioned lifting process of the product clamped by the clamping and pressing component 8 driven by the lifting drive motor 3, in order to reduce the power load of the lifting drive motor 3, it is counterweighted by the counterweight box structure 10. Specifically, the chain 5 is wound around the sprocket 13 at the power output end of the lifting drive motor 3, and the other end of the chain 5 is installed with the counterweight box structure 10. The lifting drive motor 3 drives the sprocket 13 to rotate, thereby driving the chain 5 to move up and down, and then drives the extension arm 4 to lift and lower. The weight of the extension arm 4, the second rotary drive motor 6, the rotating arm 7, the third rotary drive motor 9 and the clamping and pressing component 8 is offset by the weight of the counterweight box structure 10. That is to say, when lifting, the output force of the lifting drive motor 3 is the weight of the product, and there is no need to output the force of the weight of the extension arm 4, the second rotary drive motor 6, the rotating arm 7, the third rotary drive motor 9 and the clamping and pressing component 8. The counterweight of the counterweight box structure 10 reduces the load size of the lifting drive motor 3, reduces the load overheating problem of the lifting drive motor 3 to a certain extent, and also increases the service life of the lifting drive motor 3.

[0035] In some relatively large spaces, the rotating arm 7 can be rotatably installed on the end of the outward extension arm 4, thereby increasing the area swept by the outward extension arm 4 and the third rotary drive motor 9, so that products at a long distance can be clamped, transported and stacked, reducing the limitations of the palletizer in actual stacking.

[0036] In this embodiment, in order to enable the lifting drive motor 3 to output a larger torque to lift heavier products, a reducer can be installed at the power output of the lifting drive motor 3. The reducer can convert high speed and low torque into a low speed and high torque state, thereby lifting heavier products. The specific type of reducer can be selected according to needs, and no specific restrictions are made here.

[0037] The rotating base 1 includes a base 110, on which a rotating base 120 is rotatably mounted. A first rotating drive motor 130 is mounted on the rotating base 120. The first rotating drive motor 130 drives the rotating base 120 to rotate through the engagement of the gear ring at its power output end, and the column 2 is fixedly mounted on the upper surface of the rotating base 120.

[0038] See also Figure 1 and Figure 2 As shown, in order to transport the clamped products to different angles for stacking, the column 2 is rotated by means of a gear ring structure. Specifically, the first rotary drive motor 130 drives the gear at its output end to rotate. Since the gear is meshed with the gear ring, the gear ring is installed on the base 110, thereby driving the rotating seat 120 to rotate and further driving the column 2 to rotate.

[0039] The clamping and pressing assembly 8 includes a rotating plate 81 rotatably mounted on the outer end of the rotating arm 7, connecting frames 82 are fixedly mounted on both sides of the rotating plate 81, clamping structures 83 for clamping are mounted on both sides of the connecting frame 82, and also includes a pressing structure 84 for pressing the clamped product.

[0040] The clamping structure 83 includes a mounting plate 831 fixedly mounted on the bottom surfaces of the ends of the two connecting frames 82, a rotating shaft 832 is rotatably mounted between the mounting seats on both sides of the bottom surface of the mounting plate 831, connecting arms 833 are fixedly mounted on both ends of the rotating shaft 832, a fixing plate 834 is mounted on the two connecting arms 833, a plurality of evenly spaced clamping forks 835 are fixedly mounted on the inner side surface of the fixing plate 834 close to the rotating plate 81, a clamping cylinder 836 is hingedly mounted on the mounting seat on the upper surface of the mounting plate 831, a transmission plate 837 is hingedly mounted on the driving end of the clamping cylinder 836, and the other end of the transmission plate 837 passes through the mounting plate 831 and is fixedly connected and mounted to the rotating shaft 832.

[0041] The clamping fork 835 is in an “L” shape; both sides of the mounting plate 831 are provided with stoppers 85 for limiting the rotation angle of the paper connecting arm 833 .

[0042] See also Figures 1 to 5 As shown, in the initial state, the clamping forks 835 located in the clamping structure 83 on both sides of the connecting frame 82 move away from each other under the drive of the clamping cylinders 836 on each side, so that the space formed between the two clamping forks 835 is maximized, which is convenient for accommodating the product in the space, and then the clamping cylinders 836 on both sides are started at the same time to drive the transmission plate 837 to rotate, thereby also driving the rotation shaft 832 to rotate, and then under the transmission of the connecting arm 833 and the fixed plate 834, the clamping fork 835 is driven to insert from the product, so that the product is located on the two "L"-shaped clamping forks 835, and as the two clamping forks 835 approach each other and continue to rotate, the product located between the two is clamped, and then the product can be transported to the stacking position according to the stacking position through the linkage of the rotating base 1, the lifting drive motor 3, the outreaching arm 4, the rotating arm 7 and the third rotating drive motor 9, and the clamping cylinder 836 can be started in reverse to achieve the basic clamping of the product, so that the product is placed in the predetermined stacking position to achieve stacking and palletizing.

[0043] In order to prevent the connecting arm 833 from rotating at an excessive angle, the connecting arm 833 is blocked at the maximum angle position by the limiter 85 to prevent movement interference with other components due to excessive rotation angle.

[0044] The pressing structure 84 includes a mounting frame 841 fixedly mounted on the mounting plate 831 at an edge away from the clamping cylinder 836 , a pressing cylinder 842 is fixedly mounted on the mounting frame 841 , and a pressing plate 843 is fixedly mounted on the telescopic end of the pressing cylinder 842 .

[0045] See also Figure 3 , Figure 4 and Figure 6 As shown, in order to prevent the clamped products from moving and falling during transportation, the downward pressure cylinder 842 can be used to drive the lower pressure plate 843 to press downward after clamping to fix the products, and the downward pressure cylinder 842 can also be used to drive the lower pressure plate 843 to press downward to flatten the products when stacking them to prevent the product surface from being uneven, causing the stacked products to shake and causing the stack to collapse.

[0046] The counterweight box structure 10 includes a box body 101 fixedly installed at the other end of the chain 5, a plurality of counterweight blocks 102 are stacked inside the box body 101, a closing plate 103 for closing is provided at the opening of the box body 101, first rollers 104 capable of rolling against the inner wall of the column 2 are installed at the four corners of the upper surface and the four corners of the lower surface of the box body 101, and second rollers 105 capable of rolling against the inner wall of the column 2 are installed on both sides of the middle of the upper surface and both sides of the middle of the lower surface of the box body 101.

[0047] See also Figure 2 and Figure 7 As shown, the column 2 is a quadrilateral with a hollow interior to accommodate a counterweight box structure 10. Specifically, in this embodiment, different numbers of counterweights 102 can be placed in the box 101 as needed to achieve force balance, and the first rollers 104 at the four corners and the second rollers 105 in the middle slide with the inner wall of the column 2, which can prevent the outer surface of the box 101 from colliding with the inner wall of the column 2 during lifting and lowering, and make the lifting and lowering smoother to a certain extent.

[0048] A slide rail 11 is fixedly mounted on the outer surface of the column 2 , and the extension arm 4 is slidably connected to the column 2 via the slide rail 11 .

[0049] See also Figure 1 As shown, the guide and lifting of the extension arm 4 are made smoother by the slide rail 11 .

[0050] Dust covers 12 for sealing the slide rail 11 are installed on the top and bottom of the side of the outer surface of the column 2. The dust covers 12 are retracted or extended as the extension arm 4 is raised or lowered.

[0051] See also Figure 1 and Figure 2 As shown, the dust cover 12 can prevent external dust from entering the slide rail 11 and affecting the lifting.

[0052] In other embodiments, different from the above embodiments, the lifting drive motor 3 for driving the outward extension arm 4 to lift and lower can be installed on the outward extension arm 4. Specifically, the lifting drive motor 3 is installed on the outward extension arm 4, and a gear is installed on the output end of the lifting drive motor 3. Then, a rack is fixedly installed on the side of the column 2, and the gear is meshed with the rack. When the lifting drive motor 3 drives the gear to rotate, it drives the outward extension arm 4 to lift and lower under the guidance of the slide rail 11.

[0053] The working process of the utility model is as follows: first, the rotating base 1 drives the column 2 to rotate, the second rotating drive motor 6 drives the rotating arm 7 to rotate, the third rotating drive motor 9 drives the clamping and pressing component 8 to rotate, and the lifting drive motor 3 drives the outreach arm 4 to rise and fall through the chain 5, thereby driving the clamping and pressing component 8 to move to the loading position, and the product at the loading position is clamped by the clamping and pressing component 8, and then the clamped product is placed in the stacking position for stacking and stacking through the linkage between the rotating base 1, the lifting drive motor 3, the second rotating drive motor 6, and the third rotating drive motor 9.

[0054] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting palletizer, It is characterized in that The invention comprises a rotating base (1) capable of rotating, wherein a column (2) having a cavity is installed at the rotating end of the rotating base (1), an extension arm (4) is installed on the outer surface of one side of the column (2) in a lifting and sliding manner, a sprocket (13) is installed on the top of the column (2), and a chain (5) is wound around the outer surface of the sprocket (13) and the other end is connected to a counterweight box structure (10) located inside the column (2), and also comprises a lifting drive motor (3) for driving the extension arm (4) to rise and fall, a rotating arm (7) is rotatably installed on the outer end of the extension arm (4), a second rotating drive motor (6) for driving the rotation of the extension arm (7) is also installed on the outer end of the extension arm (4), a clamping and pressing assembly (8) for clamping a product is rotatably installed on the outer end of the rotation arm (7), and a third rotating drive motor (9) for driving the clamping and pressing assembly (8) to rotate is also installed on the outer end of the rotation arm (7).

2. A lifting palletizer according to claim 1, Features: The rotating base (1) comprises a base (110), a rotating base (120) is rotatably mounted on the base (110), a first rotating drive motor (130) is mounted on the rotating base (120), the first rotating drive motor (130) drives the rotating base (120) to rotate by meshing with a gear ring at its power output end, and the column (2) is fixedly mounted on the upper surface of the rotating base (120).

3. The lifting palletizer according to claim 1, Features: The clamping and pressing assembly (8) comprises a rotating plate (81) rotatably mounted on the outer end of the rotating arm (7), connecting frames (82) are fixedly mounted on both sides of the rotating plate (81), clamping structures (83) for clamping are mounted on both sides of the connecting frame (82), and a pressing structure (84) for pressing the clamped product is also included.

4. A lifting palletizer according to claim 3, Features: The clamping structure (83) comprises a mounting plate (831) fixedly mounted on the bottom surfaces of the ends of the two connecting frames (82); a rotating shaft (832) is rotatably mounted between mounting seats located on both sides of the bottom surface of the mounting plate (831); connecting arms (833) are fixedly mounted on both ends of the rotating shaft (832); a fixing plate (834) is mounted on the two connecting arms (833); a plurality of evenly spaced clamping forks (835) are fixedly mounted on the inner side surface of the fixing plate (834) close to the rotating plate (81); a clamping cylinder (836) is hingedly mounted on the mounting seat on the upper surface of the mounting plate (831); a transmission plate (837) is hingedly mounted on the driving end of the clamping cylinder (836); the other end of the transmission plate (837) passes through the mounting plate (831) and is fixedly connected to the rotating shaft (832).

5. A lifting palletizer according to claim 4, Features: The pressing structure (84) comprises a mounting frame (841) fixedly mounted on the edge of the mounting plate (831) away from the clamping cylinder (836), a pressing cylinder (842) fixedly mounted on the mounting frame (841), and a pressing plate (843) fixedly mounted on the telescopic end of the pressing cylinder (842).

6. The lifting palletizer according to claim 1, Features: The counterweight box structure (10) comprises a box body (101) fixedly mounted on the other end of the chain (5), a plurality of counterweight blocks (102) are stacked inside the box body (101), a closing plate (103) for closing is provided at the opening of the box body (101), first rollers (104) capable of rolling against the inner wall of the column (2) are installed at the four corners of the upper surface and the four corners of the lower surface of the box body (101), and second rollers (105) capable of rolling against the inner wall of the column (2) are installed at both sides of the middle of the upper surface and the two sides of the middle of the lower surface of the box body (101).

7. The lifting palletizer according to claim 1, Features: A slide rail (11) is fixedly mounted on the outer surface of the column (2), and the extension arm (4) is slidably connected to the column (2) via the slide rail (11).

8. The lifting palletizer according to claim 7, Features: A dust cover (12) for sealing the slide rail (11) is installed on the top and bottom of the side of the outer surface of the column (2), and the dust cover (12) is retracted or extended as the extension arm (4) is raised or lowered.

9. The lifting palletizer according to claim 4, Features: Stoppers (85) for limiting the rotation angle of the connecting arm (833) are installed on both sides of the installation plate (831).

10. The lifting palletizer according to claim 4, Features: The clamping fork (835) is in an "L" shape.

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