A feeding buffer device

Abstract

The present invention is applicable to the technical field of material loading and caching equipment, and provides a material loading and caching device, comprising: a main frame; a feeding mechanism, which is arranged at the bottom of the main frame, and a cache area is provided at the rear end of the feeding mechanism; a pushing mechanism, which is arranged at the top of the main frame, and the pushing mechanism comprises a pushing member which can reciprocate and a pushing plate arranged at the free end of the pushing member, and the pushing plate can be rotated from a vertical state to a horizontal state under the force along the material conveying direction, and return to the vertical state after the material passes the position of the pushing plate; a blocking mechanism, which is arranged at the rear end of the cache area, and the blocking mechanism comprises a baffle and a power assembly, and the baffle is driven by the power assembly and can be switched between a horizontal state and a vertical state; a transmission mechanism, which comprises a driving wheel, a driven wheel and a plurality of transmission rollers, and the driven wheel is connected to the plurality of transmission rollers, thereby realizing temporary caching of products and a rapid feeding process during feeding, thereby ensuring the continuity of the production rhythm.

Description

Technical Field

[0001] The present invention relates to the technical field of material loading and caching equipment, and in particular to a material loading and caching device. Background Art

[0002] In the field of warehousing and logistics, common feeding mechanisms are mostly to directly transmit workpieces through conveyor belts, and the gripping mechanisms such as manipulators take the workpieces from the conveyor belts and then place them in the processing area for processing. When it comes to stacking large bags or large objects, it is easy to grab them loosely and slip when the manipulator is used alone. During stacking, the movement stroke of the manipulator each time is usually inconsistent, that is, the frequency of the manipulator's picking up goods during stacking is not fixed. The existing conveyor belts for feeding usually run at a fixed rate. Although the transmission rate is adjustable, since the transmission of materials in this field usually has a relatively long distance, it is difficult to solve the following problems: if the transmission rate is too fast, the manipulator has not completed the previous stacking action, which will cause a backlog of goods. If the transmission rate is too slow, the manipulator needs to wait for a while after the stacking is completed before it can pick up the goods, and continuous stacking cannot be achieved, which reduces the stacking efficiency. Therefore, it is particularly important to design equipment that can adapt to the stacking rhythm and ensure that materials can be delivered to the right place on demand.

[0003] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0004] In view of the above-mentioned defects, the purpose of the present invention is to provide a material loading buffer device, which can be arranged at the rear end of the loading equipment, for temporarily storing the material and waiting for the next process to work. After the next process is completed, the material in the buffer area is quickly transported to the next process, so as to realize the simultaneous completion of material storage and material feeding, ensure the continuity of the production rhythm, and prevent the problems of inadequate material delivery and mismatch between material delivery and the working rhythm of the robot.

[0005] In order to achieve the above-mentioned objectives, the present invention provides a loading and caching device, comprising: a main frame; a feeding mechanism, which is arranged at the bottom of the main frame, and a cache area is provided at the rear end of the feeding mechanism; a pushing mechanism, which is arranged at the top of the main frame, and the pushing mechanism includes a pushing member that can reciprocate and a pushing plate arranged at the free end of the pushing member, and the pushing plate can be rotated from a vertical state to a horizontal state under the force along the material conveying direction, and return to the vertical state after the material passes through the position of the pushing plate; a blocking mechanism, which is arranged at the rear end of the cache area, and the blocking mechanism includes a baffle and a power assembly, and the baffle is driven by the power assembly and can be converted between a horizontal state and a vertical state; a transmission mechanism, including a driving wheel, a driven wheel and a plurality of transmission rollers, the driven wheel is connected to a plurality of the transmission rollers, and the plurality of transmission rollers are arranged at the bottom of the cache area.

[0006] According to the loading and caching device of the present invention, the caching area is provided with two symmetrically arranged guide plates, and the two guide plates form a discharge port which gradually narrows from the feeding mechanism to the blocking mechanism.

[0007] According to the loading and caching device of the present invention, a cross bar is provided on the top of the main frame, the push plate is provided on the pushing member through a guide member, and the cross bar is passed through the guide member.

[0008] According to the loading and caching device of the present invention, the guide member includes two transmission rollers cooperating with the upper portion of the cross bar, and limit plates arranged at both ends of the two transmission rollers, and the push plate is connected to the limit plates and is located below the cross bar.

[0009] According to the loading and caching device of the present invention, the guide member is further provided with a transmission roller cooperating with the bottom of the cross bar.

[0010] According to the loading buffer device of the present invention, the limit plate and the push plate are connected by a pin, and a stop block is provided at the bottom of the limit plate.

[0011] According to the loading and caching device of the present invention, a torsion bearing is provided inside the driving wheel, a one-way bearing is provided inside the driven wheel, the driving wheel and the driven wheel are chain-driven, the driven wheel has the same number as several of the transmission rollers, and the driven wheels are chain-driven.

[0012] According to the material loading and caching device of the present invention, grating switches are provided on the top of the feeding mechanism and the front end of the material blocking mechanism.

[0013] According to the loading and caching device of the present invention, the power assembly includes a reciprocating power member and a crank connection mechanism, the reciprocating end of the crank connection mechanism is connected to the free end of the power member, and the rotating end of the crank connection mechanism is connected to the baffle rotating shaft.

[0014] The present invention provides a loading and caching device, which transports materials to the conveying mechanism through a conveyor belt, and the conveying mechanism transports materials to the baffle plate through a transmission roller. When the baffle plate is erected, the materials cannot enter the next process under the action of the baffle plate, and are temporarily stored on the conveying mechanism. At this time, the transmission torque increases under the action of the baffle plate, and when the range of the torsion bearing is reached, the torsion bearing idles and does not drive the gear to rotate, so that the transmission roller of the transmission mechanism stops rotating. When the baffle plate moves, the cylinder of the pushing mechanism moves. At this time, the materials are quickly pushed to the next process under the action of the pushing plate. The speed at this time is relatively fast, and the one-way bearing works to prevent relative sliding between the materials and the transmission roller, thereby limiting the movement speed of the materials. By arranging the loading and caching device, the time loss in the process of conveyor belt feeding can be shortened, and the uninterrupted movement of the mechanical claw during palletizing can be ensured, which greatly increases the efficiency of palletizing, prevents the phenomenon of beat pause and waiting, shortens the production time to the greatest extent, and also ensures that the mechanical claw can accurately grab the material bag to prevent the phenomenon of the material bag being out of place. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the present invention;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of part A of the present invention;

[0018] Figure 4 It is a schematic diagram of the material pushing mechanism of the present invention;

[0019] Figure 5 It is a schematic diagram of the enlarged structure of part B of the present invention;

[0020] In the figure, 1- material blocking mechanism, 2- guide plate, 3- material pushing mechanism, 4- transmission mechanism, 5- material feeding mechanism, 6- main frame, 7- grating switch, 101- cylinder, 102- connecting assembly, 103- rotating shaft, 104- baffle, 105- fixed seat, 301- pushing member, 302- push rod, 303- limit plate, 304- cross bar, 305- push plate, 306- stop block, 307- sliding wheel, 401- transmission roller, 402- driving shaft, 403- torque bearing, 404- driving gear, 405- driven shaft, 406- one-way bearing, 407- driven gear, 408- transmission chain. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] See also Figure 1 The present invention provides a loading and caching device, including a guide plate 2, a feeding mechanism 5, a main frame 6, a pushing mechanism 3, a blocking mechanism 1 and a transmission mechanism 4. A cross bar 304 is provided at the upper end of the main frame 6 of the device, and the pushing mechanism 3 is arranged on the cross bar 304. The pushing mechanism 3 is provided with three sliding wheels 307 that contact the cross bar 304 and can slide freely on the cross bar 304. The material blocking mechanism 1 is arranged at the front end of the transmission mechanism 4, including a cylinder 101, a connecting component 102, a rotating shaft 103, a baffle 104 and a fixed seat 105. The rotating shaft 103 is fixed to the side of the baffle 104, and the rotating shaft 103 and the fixed seat 105 are movably connected to realize that the baffle 104 can rotate around the rotating shaft 103, and the fixed seat 105 is fixed on the main frame 6. The connecting component 102 adopts a crank-connecting rod mechanism, and the rotating shaft of the crank is the rotating shaft 103. The other end is connected to the top of the cylinder 101 with a pin and can rotate freely, so that the baffle 104 can switch freely between the horizontal and vertical states under the push of the cylinder 101, and it can also ensure that the material can freely enter the next process when pushing the material.

[0023] See also Figure 4 Preferably, the pushing mechanism 3 of the present invention includes a pushing member 301, and the pushing member can be a pushing member 301, a push rod 302, a guide member 303, a cross bar 304, a push plate 305, a stop block 306 and a sliding wheel 307 that can produce the same effect using an electric cylinder or a cylinder. The pushing member 301 is pushed by a cylinder, and the cylinder push structure is simple and the cost is low. The cylinder cooperates with the push rod 302 to act on the guide member 303 together. The guide member 303 includes a limit plate and a sliding wheel 307. The push plate 305 is movably connected to the guide member 303. The push plate 305 rotates unidirectionally in the vertical direction. A pair of stop blocks 306 are provided on the contact surface between the push plate 305 and the guide member 303. The stop blocks 306 limit the movement of the push plate 305 to ensure that the push plate 305 cannot rotate in the opposite direction.

[0024] See also Figure 2 and Figure 5In addition, the transmission mechanism 4 of the present invention is arranged at the discharge end of the feeding mechanism 5 and is on the same horizontal plane as the feeding mechanism 5. The transmission mechanism 4 is provided with a transmission roller 401, a driving shaft 402, a torsion bearing 403, a driving gear 404, a driven shaft 405, a one-way bearing 406, a driven gear 407 and a transmission chain 408: a plurality of transmission rollers 401 are provided, and the plurality of transmission rollers 401 are fixedly sleeved with the driven shaft 405. The driven shaft 405 rotates to drive the transmission roller 401 to rotate. A mutually meshing driven gear 407 is provided on one side of the driven shaft 405, and a one-way bearing 406 is provided on the inner side of the driven gear 407; a driving gear 404 is provided on the same side of the driving shaft 402, and a torsion bearing 403 is provided inside. The driving gear 404 drives the driven gear 407 to rotate through the transmission chain, and the plurality of driven gears 407 rotate in the same direction at the same time to drive all the transmission rollers 401 to rotate at the same time.

[0025] Furthermore, the bearings of the present invention adopt a one-way bearing 406 and a torsion bearing 403. The one-way bearing 406 is arranged on the driven shaft 402. During normal feeding, the one-way bearing 406 drives the driven shaft 402 to rotate, and drives the transmission roller 401 to rotate. When the pushing mechanism 3 quickly pushes the cached items in the buffer area to the next process, the push plate 305 is faster than the linear speed of the transmission roller 401. In order to reduce the resistance to pushing, the one-way bearing 406 is idle at this time and does not drive the transmission chain 408 to rotate. In addition, a plurality of transmission rollers 401 are provided at the bottom of the buffer area. Because when feeding, if the material bag is too large, there can be sufficient friction to ensure that the material bag is in place in the buffer area to prevent the occurrence of the problem of not being in place. In this way, the material blocking and caching function after material transmission can be realized, and the rapid loading process during pushing can also be realized. The driving shaft 402 is provided with a torsion bearing 403. When the baffle 104 of the material blocking mechanism 1 is lifted, the material is blocked by the baffle 104 and no longer moves, but the transmission roller 401 is still moving at this time. When the friction force reaches the limit torque of the torsion bearing 403, the torsion bearing 403 idles and the transmission chain 408 stops rotating, thereby reducing the power consumption and the wear between the material and the transmission roller 401.

[0026] See also Figure 1 and Figure 3, better, the material blocking mechanism 1 of the present invention is provided with a baffle 104, and the transmission member of the material blocking mechanism 1 can be a transmission member with the same function such as a spring or a cylinder. The cylinder 101 is used here. After the baffle 104 is flattened under the push of the cylinder 101, the pulling force of the cylinder is greater than the friction between the material and the transmission roller 401, which is smaller than the thrust between the push plate 305 and the material. A crank connecting rod mechanism is used between them, which well realizes the conversion of the driving force into the rotational force, realizes the rotational movement of the baffle 104, and ensures that it can adapt to different environments. The baffle 104 extends a certain length and can cooperate with the mechanical claw, which is conducive to pushing the material into the inside of the mechanical claw. When a spring is used, the baffle 104 stretches the spring under the force of the push plate 305 pushing the material, completing the same action as above.

[0027] See also Figure 2 Furthermore, a guide plate 2 is provided on the buffer area at the end of the transmission mechanism 4 of the present invention, and the guide plate 2 is two quarter circular plates. The two circular plates together constitute a gradually narrowing discharge port at the end of the feeding mechanism 5, thereby ensuring that during the material transmission process, the material can be delivered to the manipulator in the same state, thereby preventing the occurrence of a phenomenon in which the material bag is too large and cannot be delivered in place.

[0028] See also Figure 1 and Figure 2 Better yet, the front end of the material blocking mechanism 1 and the rear end of the transmission mechanism 4 described in the present invention are both provided with a grating switch 7, and two groups of grating switches 7 are set to ensure that when there is material at the front end of the material blocking mechanism 1, when the material is transported to the top of the feeding mechanism 5, the two grating switches 7 are blocked at the same time and work together. At this time, the feeding mechanism 5 suspends feeding to prevent the material from piling up and the pushing mechanism 3 from being unable to effectively push the material. The switches only work when the two groups of grating switches 7 are blocked by the material at the same time, and any one of them being blocked will not stop the feeding mechanism 5 from feeding. This not only ensures that there is no interruption in the work of the subsequent process, but also ensures that the pushing mechanism 3 will not fail due to material pressure.

[0029] In this example, the material, i.e. the product to be stacked, is placed on the feeding mechanism 5, and the product is conveyed to the material blocking mechanism 1 through the conveyor belt. Under the action of the baffle 104, the material is blocked, and at the same time, the transmission mechanism 4 is affected by the torsion bearing 403, and the transmission roller 401 at the bottom of the material blocking mechanism 1 no longer rotates. When the front process mechanical claw runs to the predetermined position, the pushing mechanism 3 is activated, and under the action of the pushing plate 305, the product is pushed out of the material blocking structure 1 into the inside of the mechanical claw to complete the feeding. At the same time, the material at the rear end continues to run to the material blocking mechanism 1 to complete the temporary storage of the material conveyance.

[0030] In summary, the present invention provides a loading buffer device, which transports materials to the conveying mechanism through a conveyor belt, and the conveying mechanism transports materials to the baffle through a transmission roller. When the baffle is erected, the material cannot enter the next process under the action of the baffle and is temporarily stored on the conveying mechanism. At this time, the transmission torque increases under the action of the baffle. When the range of the torsion bearing is reached, the torsion bearing idles and does not drive the gear to rotate, so that the transmission roller of the transmission mechanism stops rotating. When the baffle moves, the cylinder of the pushing mechanism moves. At this time, the material is quickly pushed to the next process under the action of the push plate. The speed at this time is faster, and the one-way bearing works to prevent relative sliding between the material and the transmission roller, thereby limiting the movement speed of the material. By setting the loading buffer device, the time loss in the conveyor belt feeding process can be shortened, and the uninterrupted movement of the mechanical claw during palletizing is guaranteed, which greatly increases the efficiency of palletizing, prevents the phenomenon of beat pause waiting, shortens the production time to the greatest extent, and ensures that the mechanical claw can accurately grab the material bag to prevent the phenomenon of material bag not being in place.

[0031] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

[0032] In the description of the invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention. In addition, the terms "first", "second", and the like are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

Claims

1. A feeding buffer device, characterized in that: include: Main frame; A feeding mechanism is arranged at the bottom of the main frame, and a buffer area is arranged at the rear end of the feeding mechanism; A material pushing mechanism is arranged on the top of the main frame, and the material pushing mechanism includes a reciprocating pushing member and a pushing plate arranged at the free end of the pushing member, and the pushing plate can be rotated from a vertical state to a horizontal state under force along the material conveying direction, and returns to a vertical state after the material passes the position of the pushing plate; A material blocking mechanism is arranged at the rear end of the buffer area, and the material blocking mechanism includes a baffle and a power assembly. The baffle is driven by the power assembly and can be switched between a horizontal state and a vertical state; The transmission mechanism comprises a driving wheel, a driven wheel and a plurality of transmission rollers, wherein the driven wheel is connected to the plurality of transmission rollers, the plurality of transmission rollers are arranged at the bottom of the buffer area, a torsion bearing is arranged inside the driving wheel, a one-way bearing is arranged inside the driven wheel, the driving wheel and the driven wheel are chain-driven, the number of the driven wheel and the plurality of transmission rollers is the same, and the driven wheels are chain-driven; A cross bar is provided on the top of the main frame, and the push plate is provided on the pushing member through a guide member. The cross bar is passed through the guide member. The guide member includes two sliding wheels that cooperate with the upper part of the cross bar, and limit plates provided at both ends of the two sliding wheels. The push plate is connected to the limit plate and is located below the cross bar. The guide member is also provided with a sliding wheel that cooperates with the bottom of the cross bar.

2. The material loading and caching device according to claim 1, characterized in that: The buffer area is provided with two symmetrically arranged guide plates, and the two guide plates form a discharge port which gradually narrows from the feeding mechanism to the blocking mechanism.

3. The material loading and caching device according to claim 1, characterized in that: The limiting plate is connected to the pushing plate by a pin, and a stop block is provided at the bottom of the limiting plate.

4. The material loading and caching device according to claim 1, characterized in that: The top of the feeding mechanism and the front end of the blocking mechanism are both provided with grating switches.

5. The material loading and caching device according to claim 1, characterized in that: The power assembly includes a reciprocating power member and a crank connection mechanism, the reciprocating end of the crank connection mechanism is connected to the free end of the power member, and the rotating end of the crank connection mechanism is connected to the baffle rotating shaft.

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