Workpiece lifting device

Abstract

The present invention discloses a workpiece lifting device, including a material channel, the material channel is provided with a feeding channel for conveying workpieces; a lifting assembly, the lifting assembly is provided with a lifting drive cylinder and a lifting channel inclined upward, the lifting channel is provided with a discharge port and a feeding port connected to the feeding channel, the discharge port is located at the end of the lifting direction of the lifting channel, the lifting channel is provided with a channel baffle at the lower end of the feeding port, the lifting drive cylinder is located at the lower end of the channel baffle and its push rod can extend into the lifting channel, and the lifting channel is provided with a plurality of anti-slip structures for preventing the workpiece from sliding down at intervals along its lifting direction. The workpiece lifting device is provided with an inclined upward lifting channel, and the lifting channel is provided with an anti-slip structure, so that the workpiece can be continuously lifted upward, and its maximum lifting height can exceed the maximum stroke of the lifting drive cylinder, meeting the production needs.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying equipment, in particular to a workpiece lifting device. Background Art

[0002] At present, there are many ways to convey and lift materials, such as using a conveyor belt to transport and lift the workpiece; some are lifted by chain conveying; another way is to lift by cylinder pushing; there are also ways to use a motor with a screw rod, or a gear rack, etc. Among them, the method of using a cylinder for lifting has the characteristics of relatively low cost and simple structure, but it can only lift the workpiece to the maximum stroke height of the cylinder, so its lifting height is relatively limited and it is difficult to meet the needs of production. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a workpiece lifting device, the maximum lifting height of which can exceed the maximum stroke of the cylinder to meet the production needs.

[0004] According to the first aspect of the present invention, the workpiece lifting device comprises: a material channel, the material channel is provided with a feeding channel for conveying workpieces; a lifting component, the lifting component is provided with a lifting drive cylinder and a lifting channel inclined upward, the lifting channel is provided with a discharge port and a feeding port connected to the feeding channel, the discharge port is located at the end of the lifting direction of the lifting channel, the discharge port is located at the end of the lifting direction of the lifting channel, the lifting channel is provided with a channel baffle at the lower end of the feeding port, the lifting drive cylinder is located at the lower end of the channel baffle and its push rod can extend into the lifting channel, and the lifting channel is provided with a plurality of anti-slip structures at intervals along its lifting direction to prevent the workpiece from sliding down.

[0005] The workpiece lifting device according to the embodiment of the present invention has at least the following beneficial effects: when working, the workpiece enters the lifting channel from the feed channel through the feed port, and then is lifted upward along the lifting channel to the anti-slip structure under the push of the lifting drive cylinder. At this time, the workpiece stays on the anti-slip structure, and then the lifting drive cylinder shrinks back to its original position, and the next workpiece enters the lifting channel. Then the lifting drive cylinder continues to lift the next workpiece to the above-mentioned anti-slip structure, and at the same time, the next workpiece pushes the previous workpiece along the lifting direction of the lifting channel to the next anti-slip structure, and so on. The workpiece can be continuously lifted on the lifting channel until it is output from the discharge port. The workpiece lifting device is provided with an inclined upward lifting channel, and the lifting channel is provided with an anti-slip structure, so that the workpiece can be continuously lifted upward, and its maximum lifting height can exceed the maximum stroke of the lifting drive cylinder to meet production needs.

[0006] According to some embodiments of the present invention, it also includes a jacking assembly, which is located at one end of the discharge port of the lifting channel. The jacking assembly is provided with a jacking drive cylinder, a jacking platform, a loading platform and a limit block. The jacking drive cylinder drives and connects the jacking platform, and the loading platform can be rotatably installed on the jacking platform. The limit block is provided with an upper block, a lower block and a positioning block. The lower block is located below one end of the loading platform close to the lifting channel, and the upper block and the positioning block are both located below the other end of the loading platform. The upper end face of the lower block is parallel to the inclination direction of the lifting channel, and the upper end face of the positioning block is a horizontal plane.

[0007] According to some embodiments of the present invention, the lifting assembly further includes a reset mechanism, and the reset mechanism has a tendency to drive the loading platform to rotate and abut against the positioning block.

[0008] According to some embodiments of the present invention, the reset mechanism is provided with an elastic member, and the elastic member is connected between the loading platform and the lifting platform.

[0009] According to some embodiments of the present invention, the anti-slip structure is an anti-slip plate extending obliquely upward from the bottom surface of the lifting channel along the lifting direction.

[0010] According to some embodiments of the present invention, the loading platform is further provided with a positioning block for positioning the workpiece.

[0011] According to some embodiments of the present invention, the positioning block is provided with a base and at least two movable blocks adjustably mounted on the base, a positioning hole is provided at the upper end of the base, and the movable block is provided with an adjustment hole corresponding to the positioning hole, and the movable block is locked and fixed to the base by a locking piece passing through the adjustment hole and the positioning hole.

[0012] According to some embodiments of the present invention, an anti-fall baffle is provided on the loading platform at one end of the positioning block away from the lifting channel.

[0013] According to some embodiments of the present invention, anti-jump baffles are provided above both sides of the lifting channel along the lifting direction.

[0014] According to some embodiments of the present invention, the push rod of the lifting drive cylinder is installed with a push plate, and the side of the push plate in contact with the workpiece is concave to form a supporting position matching the workpiece.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A three-dimensional schematic diagram of a workpiece lifting device according to an embodiment of the present invention;

[0018] Figure 2 A schematic structural diagram of a jacking assembly according to an embodiment of the present invention;

[0019] Figure 3 is a schematic diagram when the loading platform is in a horizontal position;

[0020] Figure 4 is a schematic diagram of a loading platform in an inclined position;

[0021] Figure 5 This is a schematic diagram of the structure of the positioning block. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Reference Figures 1 to 5The workpiece lifting device of the first aspect of the embodiment of the present invention mainly includes a material channel 100 and a lifting assembly 200. The material channel 100 is provided with a feeding channel 110 for conveying the workpiece 400. The workpiece 400 can be placed into the feeding channel 110 manually or by automatic equipment such as a robot in cooperation with a sensor for discharging. The lifting assembly 200 is provided with a lifting drive cylinder 220 and an upwardly inclined lifting channel 210. The lifting channel 210 can be supported and fixed by a support frame. The lifting channel 210 is provided with a discharge port 212 and a feed port 211 connected to the feed channel 110. The discharge port 212 is located at the end of the lifting direction of the lifting channel 210. The lifting channel 210 is provided with a channel baffle 214 at the lower end of the feed port 211. The lifting drive cylinder 220 is located at the lower end of the channel baffle 214 and its push rod can be extended into the lifting channel 210. An extension plate of the lifting channel 210 can be provided at the lower end of the channel baffle 214. The lifting drive cylinder 220 can be installed on the extension plate. The lifting channel 210 is provided with a plurality of anti-slip structures 213 along its lifting direction to prevent the workpiece 400 from sliding down.

[0027] During operation, the workpiece 400 enters the lifting channel 210 from the feeding channel 110 through the feeding port 211, and then is lifted upward along the lifting channel 210 to the anti-slip structure 213 under the push of the lifting drive cylinder 220. At this time, the workpiece 400 stays on the anti-slip structure 213, and then the lifting drive cylinder 220 shrinks back to its original position, and the next workpiece 400 enters the lifting channel 210, and then the lifting drive cylinder 220 continues to lift the next workpiece 400 to the above-mentioned anti-slip structure 213, and at the same time, the next workpiece 400 pushes the previous workpiece 400 along the lifting direction of the lifting channel 210 to the next anti-slip structure 213, and so on, the workpiece 400 can be continuously lifted on the lifting channel 210 until it is output from the discharge port 212. The workpiece lifting device is provided with a lifting channel 210 inclined upward, and the lifting channel 210 is provided with an anti-slip structure 213, so that the workpiece 400 can be continuously lifted upward, and its maximum lifting height can exceed the maximum stroke of the lifting drive cylinder 220 to meet the production needs.

[0028] Reference Figure 1 and Figure 2Since some processes require the workpiece 400 to be placed flat, in some embodiments, the workpiece lifting device further comprises a lifting assembly 300, the lifting assembly 300 is located at one end of the discharge port 212 of the lifting channel 210, the lifting assembly 300 is provided with a lifting drive cylinder 330, a lifting platform 310, a loading platform 320 and a limit stopper, the lifting drive cylinder 330 can be fixed by a frame installation, or can be fixedly connected to a support frame of the lifting channel 210, the lifting drive cylinder 330 drives and connects the lifting platform 310, and the lifting drive cylinder 330 can be connected to the lifting platform 310 by a guide rod, so that the driving The movement is more stable. The loading platform 320 is used to load the workpiece 400. The loading platform 320 can be rotatably installed on the lifting platform 310. The loading platform 320 can be rotatably installed on the lifting platform 310 through structures such as a rotating shaft 311. The limit stopper is provided with an upper stopper 352, a lower stopper 351 and a positioning stopper 353. The lower stopper 351 is located below one end of the loading platform 320 close to the lifting channel 210. The upper stopper 352 and the positioning stopper 353 are both located below the other end of the loading platform 320. The upper end face of the lower stopper 351 is parallel to the inclination direction of the lifting channel 210, and the upper end face of the positioning stopper 353 is a horizontal plane. Specifically, the lower block 351 and the positioning block 353 can be installed on the lifting platform 310 to move with the lifting platform 310, and the upper block 352 can be fixedly installed on the mounting frame of the lifting drive cylinder 330. The upper block 352 and the lower block 351 can be made of elastic sheets, which have a certain elasticity and can reduce the impact force. Figure 4 When the loading platform 320 moves downward under the drive of the lifting drive cylinder 330 so that the end of the loading platform 320 contacts the upper stopper 352, the loading platform 320 continues to move downward and its end will be resisted by the upper stopper 352, thereby forcing the loading platform 320 to rotate. The loading platform 320 rotates so that the end of the other end contacts the upper end surface of the lower stopper 351, so that the loading platform 320 is in an inclined state. At this time, the lifting drive cylinder 330 stops extending and retracting. The lifting drive cylinder 330 can stop extending and retracting by receiving a sensor signal, or its extension stroke is set to be the maximum stroke point at this position. Since the upper end surface of the lower stopper 351 is parallel to the inclination direction of the lifting channel 210, the loading platform 320 is parallel to the inclination direction of the lifting channel 210 at this time, so that the workpiece can be smoothly moved from the lifting channel 210 to the loading platform 320, and then the loading platform 320 moves upward under the drive of the lifting drive cylinder 330, so that the end of the loading platform 320 is separated from the upper stopper 352. Figure 3At this time, under the action of the gravity of the workpiece 400 and the loading platform 320 itself, the loading platform 320 rotates from the inclined state until the end of the loading platform 320 abuts against the upper end surface of the positioning block 353. Since the upper end surface of the positioning block 353 is a horizontal surface, the loading platform 320 is in a horizontal state at this time, thereby realizing the horizontal placement of the workpiece 400. Of course, in addition to turning the workpiece 400 from the inclined state to the horizontal state, the lifting assembly 300 can also further increase the height of the workpiece 400.

[0029] Reference Figure 3 In the above embodiment, the lifting assembly 300 also includes a reset mechanism 340. The reset mechanism 340 has a tendency to drive the loading platform 320 to rotate and abut against the positioning block 353, so that when the lifting assembly 300 lifts the workpiece 400, the loading platform 320 can return to the horizontal position more quickly. At the same time, due to the existence of the reset mechanism 340, the loading platform 320 is still subject to the force of the reset mechanism 340 after returning to the horizontal position, so that the loading platform 320 is more stable during the lifting process and the amplitude is smaller, thereby improving the stability of the workpiece lifting.

[0030] Specifically, the reset mechanism 340 can be provided with an elastic member, which is connected between the loading platform 320 and the lifting platform 310. The elastic member is in a stretched state, so it has a tendency to pull the loading platform 320 closer to the lifting platform 310. The elastic member can be a spring or a rubber strip or other elastic mechanism.

[0031] Reference Figure 1 In some embodiments, the anti-slip structure 213 is an anti-slip plate extending obliquely upward from the bottom surface of the lifting channel 210 along the lifting direction. By the above arrangement, the workpiece 400 can move from bottom to top along the anti-slip plate when being lifted on the lifting channel 210. When the workpiece 400 moves to the upper end of the anti-slip plate and continues to move upward, the workpiece 400 falls to the bottom surface of the lifting channel 210 and is blocked by the upper end of the anti-slip plate, thereby preventing the workpiece 400 from sliding down. The distance between the upper end of the anti-slip plate and the bottom surface of the lifting channel 210 can be designed according to the size of the workpiece 400. Of course, the distance needs to be smaller than the height of the workpiece 400, so that the workpiece 400 can be higher than the upper end of the anti-slip plate when being pressed by the anti-slip plate and staying in the lifting channel 210, so that it can be pushed by the subsequent workpiece 400 and continue to be lifted along the lifting channel 210.

[0032] Reference Figure 3 In some embodiments, the loading platform 320 is further provided with a positioning block 321 for positioning the workpiece 400. The positioning block 321 makes the workpiece 400 more stable on the loading platform 320, thereby preventing the workpiece 400 from falling off the loading platform 320.

[0033] Reference Figure 5 In the above embodiment, the positioning block 321 is provided with a base 322 and at least two movable blocks 323 which are adjustably mounted on the base 322. The movable block 323 is used to limit the workpiece 400. The workpiece 400 may be a product with a cavity at the bottom, such as a pot cover, which can be sleeved on the movable block 323. The upper end of the base 322 is provided with a positioning hole. The movable block 323 is provided with an adjustment hole 324 corresponding to the positioning hole. The adjustment hole 324 may be in a strip shape. The movable block 323 is locked and fixed on the base 322 by a locking member passing through the adjustment hole 324 and the positioning hole. When the locking member is released, the movable block 323 can flexibly adjust its installation position, and after being adjusted in place, it can be locked and fixed by the locking member. Since the positioning block size required for different workpieces may be different, the size of the positioning block 321 can be adjusted by adjusting the position of the movable block 323 on the base 322, so as to meet the positioning needs of the workpiece 400.

[0034] Reference Figure 3 In some embodiments, an anti-fall baffle 325 is provided on the loading platform 320 at one end of the positioning block away from the lifting channel 210. The anti-fall baffle 325 is provided to block the workpiece 400 so that when the workpiece 400 moves onto the loading platform 320, it will not fall off the loading platform 320 due to reasons such as excessive speed, but will fall back onto the positioning block 321 under the obstruction of the anti-fall baffle 325.

[0035] Reference Figure 1 In some embodiments, anti-jump baffles 215 are provided above both sides of the lifting channel 210 along the lifting direction. The anti-jump baffles 215 extend from both sides of the lifting channel 210 to the middle of the lifting channel 210, thereby blocking part of the space above the lifting channel 210, thereby preventing the workpiece 400 from jumping upward too far and falling out of the lifting channel 210 when being lifted on the lifting channel 210.

[0036] Reference Figure 1 In some embodiments, the push rod of the lifting drive cylinder 220 is installed with a push plate 221, and the side of the push plate 221 that contacts the workpiece 400 is concave to form a supporting position that matches the workpiece 400, so that the workpiece 400 can be better pushed through the supporting position.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A workpiece lifting device, characterized in that: include: A material channel, wherein the material channel is provided with a feeding channel for conveying workpieces; A lifting assembly, wherein the lifting assembly is provided with a lifting drive cylinder and a lifting channel inclined upward, the lifting channel is provided with a discharge port and a feed port connected to the feed port, the discharge port is located at the end of the lifting direction of the lifting channel, the lifting channel is provided with a channel baffle at the lower end of the feed port, the lifting drive cylinder is located at the lower end of the channel baffle and its push rod can extend into the lifting channel, the lifting channel is provided with a plurality of anti-slip structures at intervals along its lifting direction to prevent the workpiece from sliding down, and anti-jump baffles are provided above both sides of the lifting channel along the lifting direction; It also includes a jacking component, which is located at one end of the discharge port of the lifting channel. The jacking component is provided with a jacking drive cylinder, a jacking platform, a loading platform and a limit stop. The jacking drive cylinder drives and connects the jacking platform, and the loading platform can be rotatably installed on the jacking platform. The limit stop is provided with an upper stop, a lower stop and a positioning stop. The lower stop is located below one end of the loading platform close to the lifting channel, and the upper stop and the positioning stop are both located below the other end of the loading platform. The upper end surface of the lower stop is parallel to the inclination direction of the lifting channel, and the upper end surface of the positioning stop is a horizontal plane.

2. The workpiece lifting device according to claim 1, characterized in that: The lifting assembly also includes a reset mechanism, which has a tendency to drive the loading platform to rotate and abut against the positioning block.

3. The workpiece lifting device according to claim 2, characterized in that: The reset mechanism is provided with an elastic member, and the elastic member is connected between the loading platform and the lifting platform.

4. The workpiece lifting device according to claim 1, characterized in that: The anti-slip structure is an anti-slip plate extending obliquely upward from the bottom surface of the lifting channel along the lifting direction.

5. The workpiece lifting device according to claim 1, characterized in that: The loading platform is also provided with a positioning block for positioning the workpiece.

6. The workpiece lifting device according to claim 5, characterized in that: The positioning block is provided with a base and at least two movable blocks adjustably mounted on the base, a positioning hole is provided at the upper end of the base, and the movable block is provided with an adjustment hole corresponding to the positioning hole, and the movable block is locked and fixed on the base by a locking piece passing through the adjustment hole and the positioning hole.

7. The workpiece lifting device according to claim 5, characterized in that: The loading platform is provided with an anti-fall baffle at one end of the positioning block away from the lifting channel.

8. The workpiece lifting device according to any one of claims 1 to 7, characterized in that: A push plate is installed on the push rod of the lifting drive cylinder, and a side of the push plate in contact with the workpiece is concave to form a supporting position matching the workpiece.

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