Roller line lifting and transferring device

Abstract

The invention discloses a roller line lifting and transferring device, which belongs to a part of an electric energy meter production and detection automatic assembly line, can be effectively matched with an external double-layer roller conveying line, realizes the functions of incoming material receiving, position adjustment, positioning and temporary stop, transferring height adjustment, removed material conveying and the like of a turnover box, and is smooth and reasonable in overall process and high in efficiency. The adaptability is high. The main structure comprises a main sectional material frame, an adjusting roller line, a lifting driving mechanism, a long pressing strip and a positioning air cylinder, the adjusting roller line comprises a roller line support, a plurality of rotating rollers and a roller motor, the roller line support is slidably connected with the main sectional material, and in any two adjacent rotating rollers, two rotating rollers are in transmission through a belt wheel mechanism, and the roller motor is in sliding connection with the main sectional material. The belt pulley mechanism comprises a transmission belt, a belt pulley arranged on one rotating roller and a belt pulley arranged on the other rotating roller; the lifting driving mechanism comprises an air cylinder mounting plate, a lifting air cylinder, a chain wheel and a chain matched with the chain wheel.

Description

Technical Field

[0001] The invention belongs to the technical field of electric energy meter production detection and automated assembly line, and in particular relates to a roller line lifting and transferring device. Background Art

[0002] During the production and testing of electricity meters, turnover boxes are often used to store electricity meters for transportation. Considering factors such as floor space, production and testing efficiency, double-layer roller conveyor lines are also often used in turnover box (generally a box with an open top for storing multiple electricity meters) transportation scenarios. The double-layer roller conveyor line is equivalent to two ordinary roller conveyor lines arranged up and down. The upper roller conveyor line can be referred to as the upper roller line, and the lower roller conveyor line can be referred to as the lower roller line. The upper roller line and the lower roller line can be used as one incoming material line and the other as a removal material line, and then combined with manual or other transfer equipment, it can assist in the realization of the incoming and outgoing materials of the turnover box. Between the incoming material process and the outgoing material process, the turnover box needs to be temporarily stopped manually or with the help of equipment. During the temporary stop, for an empty box (empty turnover box), the robot can load the energy meter into the turnover box one by one, and for a full box (full turnover box), the robot can grab the energy meter from the turnover box one by one. For example: the empty box is transported from the upper roller line to the transfer point, where it stops temporarily. The robot loads the energy meter into the turnover box one by one. After it is full, the full box is transferred to the lower roller line manually or with the help of equipment, and then transported away. Summary of the invention

[0003] The present invention provides a roller line lifting and transferring device, which is a part of the automatic production line for electric energy meter detection. It can effectively cooperate with the external double-layer roller conveyor line to realize the functions of receiving incoming materials, adjusting the position, stopping at a fixed position, adjusting the transfer height, and conveying the turnover boxes. The overall process is smooth and reasonable, and the adaptability is strong.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A roller line lifting and transfer device, comprising a main profile frame, an adjusting roller line that can move up and down relative to the main profile, a lifting drive mechanism for driving the adjusting roller line to move up and down, a long layering strip for positioning a turnover box, and a positioning cylinder for driving the long layering strip to move horizontally;

[0006] The adjusting roller line comprises a roller line support, a plurality of rotating rollers rotatably connected to the roller line support, and a roller motor for driving one of the rotating rollers. The roller line support is slidably connected to the main profile. The rotating rollers are arranged in sequence along the length direction of the roller line support. Among any two adjacent rotating rollers: the two rotating rollers are driven by a pulley mechanism. The pulley mechanism comprises a transmission belt, a pulley provided on one rotating roller, and a pulley provided on the other rotating roller. The transmission belt is sleeved outside the pulley and is in contact with the pulley.

[0007] The lifting drive mechanism includes a cylinder mounting plate fixed on the main profile frame, a lifting cylinder arranged on the cylinder mounting plate, at least one sprocket driven to lift by the lifting cylinder and a chain matched with the sprocket, one end of the chain is relatively fixed to the cylinder mounting plate, and the other end of the chain is relatively fixed to the roller line bracket.

[0008] Preferably, there are two sprockets, which are symmetrically arranged along the lifting cylinder. A transfer seat is provided on the cylinder rod of the lifting cylinder, and a transfer shaft rotatably connected to the transfer seat is provided on the transfer seat. The sprocket is coaxially arranged on the transfer shaft, and in a sprocket and a chain cooperating with the sprocket: the chain passes around the sprocket from above.

[0009] Preferably, the adjusting roller line also includes an inner baffle plate arranged on the roller line bracket, the inner baffle plate is located between the lifting cylinder and any rotating roller, and the upper end of the inner baffle plate, the top of any rotating roller and the lower end of the inner baffle plate are arranged from top to bottom.

[0010] Preferably, it also includes an upper buffer for contacting the roller line support and a lower buffer for contacting the main profile frame, the upper buffer is a hydraulic buffer, the lower buffer is a hydraulic buffer, the main profile frame is provided with an upper buffer support, the upper buffer is arranged on the upper buffer support, the roller line support is provided with a lower buffer support fixed relatively to the roller line support, and the lower buffer is arranged on the lower buffer support.

[0011] Preferably, the cylinder rod of the positioning cylinder is connected to the long pressure strip, the cylinder body of the positioning cylinder is relatively fixed to the roller line support, the roller line support includes a side baffle, the length direction of the side baffle is parallel to the conveying direction of the roller line support, the upper end of the side baffle, the highest point of any rotating roller and the axis of any rotating roller are arranged in sequence from top to bottom, and the side baffle, the long pressure strip and the cylinder body of the positioning cylinder are arranged in sequence along the axial direction of the cylinder rod of the positioning cylinder.

[0012] Preferably, the transmission belt closest to the outer roller line is the outer belt, and the rotating roller closest to the outer roller line is the outer roller. A rubber sleeve is provided on the outer roller, and a roller motor drives the outer roller. It also includes a sliding shaft slidingly connected to the main profile frame, and the sliding shaft is provided with a tensioning cone wheel for tensioning the outer belt. The tensioning cone wheel is rotatably connected to the sliding shaft, and the outer belt passes around the tensioning cone wheel. The outer diameter of the tensioning cone wheel gradually decreases from the adjacent adjusting roller line to the direction away from the adjusting roller line. When the long pressure strip presses the side wall of the turnover box, the outer belt is in a relaxed state; when the cylinder rod of the positioning cylinder is contracted to the limit position, the outer belt is in a tensioned state.

[0013] Preferably, the piston of the positioning cylinder divides the inner part of the cylinder body of the tensioning cylinder into a positioning air chamber and a positioning sub-chamber. The positioning air chamber is supplied with air by an air pump. A positioning spring for resetting the piston of the positioning cylinder is arranged in the positioning sub-chamber. A positioning exhaust pipe, a small exhaust hole connected to the positioning air chamber, a pressure relief valve connected to the positioning air chamber and an air intake check valve connected to the positioning sub-chamber are arranged on the cylinder body of the positioning cylinder. An exhaust check valve is arranged on the positioning exhaust pipe. The positioning exhaust pipe also includes two guarantee mechanisms symmetrically arranged along the adjustment roller line. The guarantee mechanism includes a retraction cylinder arranged on the main profile, an axle seat driven by the retraction cylinder, a vertical shaft rotatably connected to the axle seat, a driven bevel gear arranged at the lower end of the vertical shaft and a friction wheel arranged at the upper end of the vertical shaft. Two active bevel gears corresponding to the guarantee mechanisms are arranged on the outer roller.

[0014] In the corresponding guarantee mechanism and the active bevel gear: the piston of the retracting cylinder divides the inner part of the cylinder body of the retracting cylinder into a retracting air chamber and a retracting sub-chamber, the retracting sub-chamber is provided with a retracting spring for resetting the piston of the retracting cylinder, and the positioning sub-chamber, the positioning exhaust pipe and the retracting air chamber are connected in sequence;

[0015] Also included is an exhaust valve system for exhausting the retraction air chamber.

[0016] Preferably, the exhaust valve system comprises a terminal exhaust pipe, and a needle valve disposed on the terminal exhaust pipe and capable of being pushed open by a tensioning cone wheel, wherein the needle of the needle valve is located above the tensioning cone wheel;

[0017] For a protection mechanism: the positioning sub-chamber, the positioning exhaust pipe and the withdrawal air chamber are connected in sequence, and one end of the terminal exhaust pipe is connected to the withdrawal air chamber:

[0018] When the long pressure strip presses the side wall of the peripheral box: the cylinder rod of the positioning cylinder is in the extended state, and the tensioning cone wheel is separated from the ejector pin of the ejector pin valve;

[0019] When the rod of the positioning cylinder contracts to the limit position: in the process of adjusting the roller line rising to the limit height, at a certain moment, the tensioning cone wheel will push the ejector pin of the ejector pin valve upward.

[0020] The beneficial effects of the present invention are as follows: it is a part of the automated production line for electric energy meters, and can be effectively coordinated with an external double-layer roller conveyor line to realize the functions of receiving incoming materials, adjusting positions, temporarily stopping for positioning, adjusting the transfer height, and conveying materials for turnover boxes. The overall process is smooth and reasonable, and has strong adaptability. When the two turnover boxes on the upper roller line are very close, the friction wheels can be driven by the driving gear and the driven gear using the separately reversed outer rollers. The two friction wheels clamp the turnover boxes and rotate relative to each other, and the latter turnover box can be pushed back to the upper roller line. After the adjustment roller line is lowered, the friction wheels can further move slightly to completely block the latter turnover box to prevent it from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0022] Figure 2 is a side view of embodiment 1 of the present invention;

[0023] Figure 3 is a schematic diagram of the back structure of Example 1 of the present invention;

[0024] Figure 4 It is a schematic diagram of a partial structure of Embodiment 1 of the present invention;

[0025] Figure 5 is a schematic diagram of the local structure of the positioning cylinder in Example 2 of the present invention;

[0026] Figure 6 yes Figure 5 The enlarged view of point A in the middle;

[0027] Figure 7 is a schematic diagram of the structure of several pulley mechanisms in Example 2 of the present invention;

[0028] Figure 8 It is a partial structural schematic diagram of embodiment 2 of the present invention;

[0029] Fig. 9 yes Figure 8 The enlarged view of point B in the middle;

[0030] Fig.10 is a gas path connection diagram in Example 2 of the present invention;

[0031] Fig.11 It is a schematic diagram of the structure of the tensioning cone wheel and the ejector needle valve in Example 2 of the present invention;

[0032] Fig.12 It is a schematic structural diagram of the friction wheel in a certain state in Example 2 of the present invention.

[0033] Reference numerals: main profile frame 1, long pressure strip 2.1, positioning cylinder 2.2, positioning air cavity 2.2a, positioning sub-cavity 2.2b, positioning spring 2.21, positioning exhaust pipe 2.22, roller line support 201, side baffle 201.1, rotating roller 202, pulley mechanism 203, transmission belt 203.1, pulley 203.2, inner baffle 204, cylinder mounting plate 301, lifting cylinder 302, sprocket 303, chain 304, adapter seat 305, adapter Shaft 306, upper buffer 4.1, lower buffer 4.2, upper buffer bracket 4.3, lower buffer bracket 4.4, sliding shaft 5.1, tensioning cone wheel 5.2, air pump 601, withdrawal cylinder 7.1, withdrawal air cavity 7.1a, withdrawal sub-cavity 7.1b, withdrawal spring 7.11, shaft seat 701, vertical shaft 702, driven bevel gear 703, friction wheel 704, active bevel gear 705, terminal exhaust pipe 8.1, ejector valve 8.2, upper roller line 9.1, turnover box 9.2. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown,

[0037] A roller line lifting and transfer device, comprising a main profile frame 1, an adjusting roller line that can move up and down relative to the main profile, a lifting drive mechanism for driving the adjusting roller line to move up and down, a long layering bar 2.1 for positioning a turnover box, and a positioning cylinder 2.2 for driving the long layering bar 2.1 to move horizontally;

[0038] The regulating roller line comprises a roller line support 201, a plurality of rotating rollers 202 rotatably connected to the roller line support 201, and a roller motor for driving one of the rotating rollers 202. The roller line support 201 is slidably connected to the main profile. The rotating rollers 202 are arranged in sequence along the length direction of the roller line support 201. Among any two adjacent rotating rollers 202: the two rotating rollers 202 are driven by a pulley mechanism 203. The pulley mechanism 203 comprises a transmission belt 203.1, a pulley 203.2 provided on one rotating roller 202, and a pulley 203.2 provided on the other rotating roller 202. The transmission belt 203.1 is sleeved outside the pulley 203.2 and is in contact with the pulley 203.2.

[0039] The lifting drive mechanism includes a cylinder mounting plate 301 fixed on the main profile frame 1, a lifting cylinder 302 arranged on the cylinder mounting plate 301, at least one sprocket 303 driven to lift by the lifting cylinder 302, and a chain 304 cooperating with the sprocket 303, one end of the chain 304 is relatively fixed to the cylinder mounting plate 301, and the other end of the chain 304 is relatively fixed to the roller line bracket 201.

[0040] The sliding direction of the roller line support 201 is vertical. In the pulley mechanism 203: the transmission belt 203.1 is closed at both ends and passes around two pulleys 203.2, and the transmission belt 203.1 is tensioned.

[0041] The roller conveyor line on the upper layer of the external double-layer roller line is called the upper roller line. Workers put an empty turnover box on the upper roller line at regular intervals. The upper roller line keeps working and conveys an empty turnover box to the present invention at regular intervals. At the present invention, the robot grabs the electric energy meter and places it in the empty turnover box on the present invention (the upper roller line may be paused during the operation of the robot). The roller conveyor line on the lower layer of the external double-layer roller line is called the lower roller line. The lower roller line keeps working and conveys the full turnover boxes to the subsequent workstations through the lower roller line.

[0042] Specifically, the lifting cylinder 302 drives the adjusting roller line to lift and lower, so that the height of the rotating roller 202 of the adjusting roller line is aligned with the height of the roller in the upper roller line. The upper roller line transports a part of an empty turnover box (called the turnover box to be loaded) to the rotating roller 202 of the present invention. The rotating roller 202 keeps rotating, driving the turnover box to continue to move until the turnover box to be loaded reaches the end of the present invention away from the upper roller line (the rotating roller 202 can be suspended, that is, temporarily stopped). The positioning cylinder 2.2 drives the long layer 2.1 to move, pushing the turnover box to be loaded to contact the roller line support 201, thereby completing the positioning of the turnover box to be loaded. The manipulator grabs the electric energy meter one by one and places it into the turnover box to be loaded until it is full (a full turnover box is a full box). After the long layer 2.1 completes the positioning of the turnover box or the turnover box is full, the positioning cylinder 2.2 can drive the long layer 2.1 to reset. The lifting cylinder 302 drives the adjusting roller line to descend, so that the height of the rotating roller 202 of the adjusting roller line is aligned with the height of the roller in the lower roller line. The rotating roller 202 resumes work and rotates in the opposite direction, and the full box moves toward the lower roller line. Finally, under the joint action of the rotating roller 202 and the lower roller line, the full box reaches the lower roller line and is transported away (transported to the subsequent station). After the above process is completed, the adjusting roller line can rise to its position again (the height of the rotating roller 202 of the adjusting roller line is aligned with the height of the roller in the upper roller line), and a turnover box transfer process is completed. After that, the upper roller line can resume forward rotation to work. Before a turnover box transfer process is completed, the next empty transfer box on the upper roller line should not reach the present invention, and after a turnover box transfer process is completed, the next empty transfer box on the upper roller line can reach the present invention.

[0043] like Figure 1 , Figure 3 As shown, there are two sprockets 303, which are symmetrically arranged along the lifting cylinder 302. An adapter seat 305 is provided on the cylinder rod of the lifting cylinder 302, and an adapter shaft 306 rotatably connected to the adapter seat 305 is provided on the adapter seat 305. The sprocket 303 is coaxially arranged on the adapter shaft 306. In a sprocket 303 and a chain 304 matched with the sprocket 303: the chain 304 passes around the sprocket 303 from above.

[0044] The lifting cylinder 302 can drive the adapter 305 to rise and fall, that is, it drives the adapter shaft 306 and the sprocket 303 to rise and fall. Since one end of the chain 304 is relatively fixed to the cylinder mounting plate 301, and the other end of the chain 304 is relatively fixed to the roller line support 201, and the chain 304 bypasses the sprocket 303 from above, as the sprocket 303 rises and rotates, it will partially push up the chain 304, thereby pulling up the roller line support 201, so that the adjustment roller line can be raised, and as the sprocket 303 falls and rotates, the chain 304 partially falls, so that the roller line support 201 also falls, so that the adjustment roller line can be lowered.

[0045] like Figure 1 , Figure 2 As shown, the adjusting roller line also includes an inner baffle 204 arranged on the roller line bracket 201, and the inner baffle 204 is located between the lifting cylinder 302 and any rotating roller 202, and the upper end of the inner baffle 204, the top of any rotating roller 202 and the lower end of the inner baffle 204 are arranged from top to bottom.

[0046] The inner baffle plate 204 can assist in positioning. Specifically, the rotating rollers 202 of the adjusting roller line rotate, which can drive the turnover box to be loaded to move in a direction away from the upper roller line until one side of the turnover box to be loaded is attached to the inner baffle plate 204.

[0047] like Figure 1 , Figure 2 As shown, it also includes an upper buffer 4.1 for contacting the roller line support 201 and a lower buffer 4.2 for contacting the main profile frame 1, the upper buffer 4.1 is an oil pressure buffer, the lower buffer 4.2 is an oil pressure buffer, the main profile frame 1 is provided with an upper buffer support 4.3, the upper buffer 4.1 is arranged on the upper buffer support 4.3, the roller line support 201 is provided with a lower buffer support 4.4 fixed relatively to the roller line support 201, and the lower buffer 4.2 is arranged on the lower buffer support 4.4.

[0048] The hydraulic buffer belongs to the prior art. Before the roller line support 201 rises to the upper limit position, it will first contact the upper buffer 4.1, thereby preventing the roller line support 201 from being damaged due to excessive impact. Before the roller line support 201 descends to the lower limit position, the lower buffer 4.2 will first contact the main profile frame 1, thereby preventing the roller line support 201 from being damaged due to excessive impact.

[0049] like Figure 1 , Figure 4 As shown, the cylinder rod of the positioning cylinder 2.2 is connected to the long pressure strip 2.1, the cylinder body of the positioning cylinder 2.2 is relatively fixed to the roller line support 201, and the roller line support 201 includes a side baffle 201.1, and the length direction of the side baffle 201.1 is parallel to the conveying direction of the roller line support 201, the upper end of the side baffle 201.1, the highest point of any rotating roller 202 and the axis of any rotating roller 202 are arranged in sequence from top to bottom, and the side baffle 201.1, the long pressure strip 2.1 and the cylinder body of the positioning cylinder 2.2 are arranged in sequence along the axial direction of the cylinder rod of the positioning cylinder 2.2.

[0050] The long pressure strip 2.1 and the side baffle 201.1 can clamp the turnover box to be loaded from two opposite sides, so as to accurately and efficiently position the turnover box to be loaded.

[0051] Example 2: Based on Example 1,

[0052] like Figure 5 , Figure 6 , Figure 7 As shown, the transmission belt 203.1 closest to the outer roller line is the outer belt, the rotating roller 202 closest to the outer roller line is the outer roller, the roller motor drives the outer roller, the outer roller is provided with a rubber sleeve, and also includes a sliding shaft 5.1 slidably connected to the main profile frame 1, the sliding shaft 5.1 is provided with a tensioning cone wheel 5.2 for tensioning the outer belt, the tensioning cone wheel 5.2 is rotatably connected to the sliding shaft 5.1, the outer belt passes around the tensioning cone wheel 5.2, the outer diameter of the tensioning cone wheel 5.2 gradually decreases from the direction adjacent to the adjusting roller line to the direction away from the adjusting roller line, when the long pressure strip 2.1 presses the side wall of the turnover box: the outer belt is in a relaxed state; when the cylinder rod of the positioning cylinder 2.2 is contracted to the limit position: the outer belt is in a tensioned state.

[0053] As mentioned above, workers put an empty turnover box on the upper roller line at regular intervals, and the upper roller line keeps working, transporting an empty turnover box to the present invention at regular intervals; before a turnover box transfer process is completed, the next empty transfer box on the upper roller line should not reach the present invention, and after a turnover box transfer process is completed, the next empty transfer box on the upper roller line can reach the present invention. The above settings are made in consideration of the overall cost, but there are also some corresponding problems: manual feeding has objective conditions such as feeding position deviation and feeding interval deviation, and the upper roller line's own characteristics make it impossible to ensure that the turnover box moves at a uniform speed during the transportation process (the turnover box is driven by friction, and different angles of the turnover box and different contact positions with the upper roller line will cause changes in the turnover box's moving speed and direction), and it is inevitable that two turnover boxes will be relatively close or even very close and stick to each other. In this case, it is possible that before a turnover box transfer process is completed, the next empty transfer box on the upper roller line also reaches the present invention. In this case, it can be considered to set a corresponding traditional blocking structure (such as a baffle, a baffle bar, etc.) at the connection point between the present invention and the upper roller line (in actual conditions, considering the design of the frame structure, the main profile frame 1 and other structures, and the rationality of landing, there is a gap between the connection point between the present invention and the upper roller line, but as long as it does not affect the incoming material transportation of the turnover box), when the current turnover box completely enters the scope of the present invention, the blocking structure will take action to block between the present invention and the upper roller line, so that the next turnover box cannot enter the scope of the present invention. However, there is another situation that if the two turnover boxes are very close or even close to each other, then if the traditional blocking structure wants to block between the present invention and the upper roller line, it will push down, lift up or even overturn the next turnover box. Therefore, the effect of setting a traditional blocking structure is average.

[0054] Then, after the current turnover box is positioned on the present invention, is it feasible to reverse the rotating roller 202 (roller motor)? The answer is no, because in this case, if the long pressure strip 2.1 has been reset, the previous turnover box will also retreat, resulting in positioning failure, affecting the robot's completion of the packing of the electric energy meter. If the long pressure strip 2.1 has not been reset, the rotating roller 202 will either not rotate or will "grind the bottom", that is, many rotating rollers 202 will rub the bottom of the previous turnover box vigorously, which may easily cause damage to the turnover box.

[0055] In view of this, the present invention provides a solution, which will be explained with reference to the accompanying drawings. Figure 6 In the figure, "the uppermost rotating roller 202 is the outer roller, and the transmission belt 203.1 passing around the outer roller is the outer belt", Figure 7 In the figure, "the rightmost rotating roller 202 is the outer roller, and the rightmost transmission belt 203.1 is the outer belt", Fig. 9 "The only rotating roller 202 appearing in the figure is the outer roller, and the only transmission belt 203.1 appearing in the figure is the outer belt."

[0056] At the beginning, the outer belt is tensioned by the tensioning cone wheel 5.2 and the two pulleys 203.2 bypassed by the outer belt. When the positioning cylinder 2.2 drives the long pressure strip 2.1 to move and push the turnover box to be loaded for positioning, the positioning cylinder 2.2 also pushes the tensioning cone wheel 5.2 to move toward the rotating roller 202 through the sliding shaft 5.1, so that the tensioning cone wheel 5.2 can no longer tension the outer belt. When the outer roller rotates, it will not drive other rotating rollers 202 to rotate. At the same time, after the equal-length pressure strip 2.1 moves into place and positions the turnover box to be loaded, the roller motor drives the outer roller to reverse. Since the outer roller is covered with a rubber sleeve, compared with ordinary rollers, the outer roller can provide a larger retraction force to the next turnover box, so that the next turnover box can leave the present invention and most of it returns to the upper roller line (the turnover box can only return to the position just after leaving the outer roller at most, and cannot return to the upper roller line completely), until the upper roller line is paused.

[0057] like Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12As shown, the piston of the positioning cylinder 2.2 divides the inner part of the cylinder body of the tensioning cylinder into a positioning air chamber 2.2a and a positioning sub-chamber 2.2b. The positioning air chamber 2.2a is supplied with air by an air pump 601. The positioning sub-chamber 2.2b is provided with a positioning spring 2.21 for resetting the piston of the positioning cylinder 2.2. The cylinder body of the positioning cylinder 2.2 is provided with a positioning exhaust pipe 2.22, a small exhaust hole connected to the positioning air chamber 2.2a, a pressure relief valve connected to the positioning air chamber 2.2a, and a pressure relief valve connected to the positioning sub-chamber 2.2b. Intake check valve, an exhaust check valve is arranged on the positioning exhaust pipe 2.22, and also includes two guarantee mechanisms arranged symmetrically along the adjustment roller line, the guarantee mechanism includes a withdrawal cylinder 7.1 arranged on the main profile, an axle seat 701 driven by the withdrawal cylinder 7.1, a vertical shaft 702 rotatably connected to the axle seat 701, a driven bevel gear 703 arranged at the lower end of the vertical shaft 702 and a friction wheel 704 arranged at the upper end of the vertical shaft 702, and two active bevel gears 705 corresponding to the guarantee mechanisms are arranged on the outer roller;

[0058] In the corresponding guarantee mechanism and the active bevel gear 705: the piston of the retracting cylinder 7.1 divides the inner part of the cylinder body of the retracting cylinder 7.1 into a retracting air chamber 7.1a and a retracting sub-chamber 7.1b, and the retracting sub-chamber 7.1b is provided with a retracting spring 7.11 for resetting the piston of the retracting cylinder 7.1, and the positioning sub-chamber 2.2b, the positioning exhaust pipe 2.22 and the retracting air chamber 7.1a are connected in sequence;

[0059] It also includes an exhaust valve system for exhausting the withdrawal air chamber 7.1a.

[0060] In the corresponding protection mechanism and the active bevel gear 705 : when the long pressure strip 2 . 1 presses the side wall of the surrounding box, the active bevel gear 705 meshes with the driven bevel gear 703 .

[0061] like Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 As shown, the exhaust valve system comprises an end exhaust pipe 8.1, and a needle valve 8.2 disposed on the end exhaust pipe 8.1 and capable of being pushed open by a tensioning cone wheel 5.2, wherein the needle of the needle valve 8.2 is located above the tensioning cone wheel 5.2;

[0062] For one protection mechanism: the positioning sub-chamber 2.2b, the positioning exhaust pipe 2.22 and the withdrawal air chamber 7.1a are connected in sequence, and one end of the terminal exhaust pipe 8.1 is connected to the withdrawal air chamber 7.1a;

[0063] When the long pressure strip 2.1 presses the side wall of the peripheral box, the cylinder rod of the positioning cylinder 2.2 is in an extended state, and the tensioning cone wheel 5.2 is separated from the ejector pin of the ejector pin valve 8.2;

[0064] When the rod of the positioning cylinder 2.2 is retracted to the limit position: in the process of adjusting the roller line rising to the limit height, at a certain moment, the tensioning cone wheel 5.2 will push the ejector of the ejector valve 8.2 upward.

[0065] The vertical shaft 702 and the shaft seat 701 are frictionally self-locking. The cylinder rod of the positioning cylinder 2.2 passes through the positioning sub-chamber 2.2b, and the cylinder rod of the positioning cylinder 2.2 and the cylinder body of the positioning cylinder 2.2 are slidingly sealed. The cylinder rod of the tensioning cylinder passes through the tensioning sub-chamber, and the tensioning sub-chamber is connected to the atmosphere. The passable direction of the intake check valve is from the atmosphere through the intake check valve to the positioning sub-chamber 2.2b, and the passable direction of the exhaust check valve is from the positioning sub-chamber 2.2b through the exhaust check valve to the atmosphere. The axis of the ejector of the ejector valve 8.2 does not coincide with the axis of the tensioning cone wheel 5.2.

[0066] When the air pump 601 supplies air, the positioning air chamber 2.2a is continuously inflated, and the piston of the positioning cylinder 2.2 moves until the cylinder rod of the positioning cylinder 2.2 is extended to the limit position. The small exhaust hole connected to the positioning air chamber 2.2a is constantly exhausting a small amount of air, but the exhaust speed is much slower than the inflation speed of the positioning air chamber 2.2a. The pressure relief valve will also automatically perform pressure relief work to ensure that the air pressure in the positioning air chamber 2.2a will not be too high. When the air pump 601 is shut down, under the action of the positioning spring 2.21, the piston of the positioning cylinder 2.2, the cylinder rod of the positioning cylinder 2.2, the long pressure strip and the tension cone wheel will be reset (the air in the atmosphere can enter the positioning sub-chamber 2.2b through the intake check valve). When the cylinder rod of the withdrawal cylinder 7.1 is extended to the limit position, if the ejector valve 8.2 is not connected, the piston of the withdrawal cylinder 7.1 cannot move temporarily, and the friction wheel 704 can continue to maintain the limit state of the turnover box.

[0067] As mentioned above, the outer roller can provide a large retraction force to the next turnover box, so that the next turnover box can leave the present invention, and most of the next turnover box returns to the upper roller line (the turnover box can only return to the position just after leaving the outer roller at most, and cannot return to the upper roller line completely), until the upper roller line is paused. Although this situation can prevent the next turnover box from entering the scope of the present invention in advance and partially, causing the next turnover box to fall and overturn when the roller line support 201 descends, a part of the turnover box after retraction is still "hanging". The retracted turnover box is an empty box, which can easily fall due to vibration and other factors. In view of this, in this embodiment, when the cylinder rod of the positioning cylinder 2.2 is in the contraction limit position, if the height of the rotating roller 202 that adjusts the roller line is aligned with the height of the roller in the upper roller line, the ejector pin of the ejector pin valve 8.2 is pushed, and the ejector pin valve 8.2 is in a blocked state. The ejector pin valve 8.2 belongs to the prior art. The ejector pin can be contracted by applying an external force, and the ejector pin will automatically extend and reset after being released. The ejector pin valve 8.2 selected in the present invention is in a connected state when the ejector pin is compressed into place, and is in a blocked state when the ejector pin is extended to the limit position (the ejector pin valve 8.2 starts to be connected as long as the ejector pin starts to extend).

[0068] When the positioning cylinder 2.2 drives the long pressure bar 2.1 to move and pushes the turnover box to be loaded for positioning, the positioning cylinder 2.2 also moves with the tensioning cone wheel 5.2 and gradually leaves the ejector of the ejector valve 8.2, and the ejector automatically extends gradually (the ejector valve 8.2 is still in a connected state for a period of time at the beginning), and a part of the gas in the positioning air cavity 2.2a will be pressed into each retraction air cavity 7.1a through the positioning exhaust pipe 2.22, and the cylinder rods of the two retraction cylinders 7.1 will extend relative to each other, so that the two friction wheels 704 will clamp the turnover box to be loaded from opposite sides. And the driven bevel gear 703 is also meshed with the corresponding active bevel gear 705. Since the active bevel gear 705 rotates in reverse with the roller motor and the outer roller, the driven bevel gear 703 also rotates, and drives the friction wheel 704 to rotate through the vertical shaft 702. The two friction wheels 704 rotate relative to each other along the two opposite side walls of the turnover box, so that the friction thrust can be used to drive the turnover box to leave the adjustment roller line (the turnover box 9.2 is withdrawn toward the upper roller line 9.1), and the turnover box 9.2 is also in a state of being about to leave the friction wheel 704 but being clamped by the friction wheel 704 (such as Fig.12As shown, due to the high air pressure in the tensioning air cavity, the two friction wheels 704 have a tendency to continue to move closer, but the driven bevel gear 703 is limited by the active bevel gear 705, so the two friction wheels 704 cannot continue to move closer temporarily). After that, the adjusting roller line can be smoothly lowered. After the turnover box is full, the adjusting roller line begins to descend. After the adjusting roller line begins to descend, the driven bevel gear 703 is no longer limited by the active bevel gear 705, and the two friction wheels 704 will continue to move closer to each other (at the same time, the turnover box can be pushed a little further toward the upper roller line by the rolling of the wheels), which is equivalent to holding the turnover box from the side away from the upper roller line 9.1, thereby completely preventing the turnover box from falling from the upper roller line. Of course, at this time, the driven bevel gear 703 will interfere with the rising of the adjusting roller line (if the active bevel gear 705 wants to rise to the position with the adjusting roller line, then the driven bevel gear 703 will interfere with the position of the active bevel gear 705). This issue will be explained later.

[0069] After the regulating roller line drops to the limit position, the air pump 601 stops, and under the action of the positioning spring 2.21, the piston and cylinder rod of the positioning cylinder 2.2 are reset, and the tensioning cone wheel 5.2 is also reset (after the tensioning cone wheel 5.2 is reset, if it rises again, it can hit the ejector pin). When the lower roller line receives a full box, the adjusting roller line of the present invention can rise and reset. Since "when the cylinder rod of the positioning cylinder 2.2 contracts to the limit position: in the process of the adjusting roller line rising to the limit height, at a certain moment, the tensioning cone wheel 5.2 will push the ejector of the ejector valve 8.2 upward", after the adjusting roller line rises for a period of time, when the adjusting roller line begins to approach the upper limit position, at a certain moment, the ejector is pushed, and the ejector valve 8.2 is connected. Under the action of the tensioning spring, the vertical shaft 702 and the driven bevel gear 703 are reset, and the gas in the tensioning air cavity is discharged through the terminal exhaust pipe 8.1 (the ejector valve 8.2). In this way, the piston, cylinder rod, driven bevel gear 703 and friction wheel 704 of the tensioning cylinder can be completely reset (the driven bevel gear 703 will no longer interfere with the active bevel gear 705, the active bevel gear 705 can smoothly rise to its position, and the adjusting roller line can also smoothly rise to its position), so that the next turnover box transfer can be carried out. When the friction wheel 704 is reset, the adjusting roller line begins to approach the upper limit position, so if the turnover box falls at this time, it is only equivalent to sliding to the adjusting roller line, and the turnover box will not overturn, and will not affect the overall working process.

[0070] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A roller line lifting and transferring device, characterized in that: It includes a main profile frame, an adjusting roller line that can move up and down relative to the main profile, a lifting drive mechanism for driving the adjusting roller line to move up and down, a long layering strip for positioning the turnover box, and a positioning cylinder for driving the long layering strip to move horizontally; The adjusting roller line comprises a roller line support, a plurality of rotating rollers rotatably connected to the roller line support, and a roller motor for driving one of the rotating rollers. The roller line support is slidably connected to the main profile. The rotating rollers are arranged in sequence along the length direction of the roller line support. Among any two adjacent rotating rollers: the two rotating rollers are driven by a pulley mechanism. The pulley mechanism comprises a transmission belt, a pulley provided on one rotating roller, and a pulley provided on the other rotating roller. The transmission belt is sleeved outside the pulley and is in contact with the pulley. The lifting drive mechanism includes a cylinder mounting plate fixed on the main profile frame, a lifting cylinder arranged on the cylinder mounting plate, at least one sprocket driven to lift by the lifting cylinder and a chain matched with the sprocket, one end of the chain is relatively fixed to the cylinder mounting plate, and the other end of the chain is relatively fixed to the roller line bracket.

2. The roller line lifting and transferring device according to claim 1 is characterized in that: There are two sprockets, which are symmetrically arranged along the lifting cylinder. A transfer seat is provided on the cylinder rod of the lifting cylinder, and a transfer shaft rotatably connected to the transfer seat is provided on the transfer seat. The sprocket is coaxially arranged on the transfer shaft. In a sprocket and a chain matching the sprocket: the chain passes around the sprocket from above.

3. The roller line lifting and transferring device according to claim 1 is characterized in that: The regulating roller line also includes an inner baffle plate arranged on the roller line bracket, the inner baffle plate is located between the lifting cylinder and any rotating roller, and the upper end of the inner baffle plate, the top of any rotating roller and the lower end of the inner baffle plate are arranged from top to bottom.

4. The roller line lifting and transferring device according to claim 1 is characterized in that: It also includes an upper buffer for contacting the roller line support and a lower buffer for contacting the main profile frame. The upper buffer is an oil pressure buffer, and the lower buffer is an oil pressure buffer. The main profile frame is provided with an upper buffer support, and the upper buffer is arranged on the upper buffer support. The roller line support is provided with a lower buffer support fixed relatively to the roller line support, and the lower buffer is arranged on the lower buffer support.

5. A roller line lifting and transferring device according to claim 1, 2, 3 or 4, characterized in that: The cylinder rod of the positioning cylinder is connected to the long pressure strip, and the cylinder body of the positioning cylinder is relatively fixed to the roller line support. The roller line support includes a side baffle, and the length direction of the side baffle is parallel to the conveying direction of the roller line support. The upper end of the side baffle, the highest point of any rotating roller and the axis of any rotating roller are arranged in sequence from top to bottom, and the side baffle, the long pressure strip and the cylinder body of the positioning cylinder are arranged in sequence along the axial direction of the cylinder rod of the positioning cylinder.

6. A roller line lifting and transferring device according to claim 1, 2, 3 or 4, characterized in that: The transmission belt closest to the outer roller line is the outer belt, and the rotating roller closest to the outer roller line is the outer roller. A rubber sleeve is provided on the outer roller, and a roller motor drives the outer roller. It also includes a sliding shaft slidingly connected to the main profile frame, and a tensioning cone wheel for tensioning the outer belt is provided on the sliding shaft. The tensioning cone wheel is rotatably connected to the sliding shaft, and the outer belt passes around the tensioning cone wheel. The outer diameter of the tensioning cone wheel gradually decreases from the adjacent adjusting roller line to the direction away from the adjusting roller line. When the long pressure strip presses the side wall of the turnover box: the outer belt is in a relaxed state; when the cylinder rod of the positioning cylinder contracts to the limit position: the outer belt is in a tensioned state.

7. The roller line lifting and transferring device according to claim 6 is characterized in that: The piston of the positioning cylinder divides the inner part of the cylinder body of the tensioning cylinder into a positioning air chamber and a positioning sub-chamber. The positioning air chamber is supplied with air by an air pump. A positioning spring for resetting the piston of the positioning cylinder is arranged in the positioning sub-chamber. A positioning exhaust pipe, a small exhaust hole connected to the positioning air chamber, a pressure relief valve connected to the positioning air chamber and an air intake check valve connected to the positioning sub-chamber are arranged on the cylinder body of the positioning cylinder. An exhaust check valve is arranged on the positioning exhaust pipe. The positioning exhaust pipe also includes two guarantee mechanisms that are symmetrically arranged along the adjustment roller line. The guarantee mechanism includes a retraction cylinder arranged on the main profile, an axle seat driven by the retraction cylinder, a vertical shaft rotatably connected to the axle seat, a driven bevel gear arranged at the lower end of the vertical shaft and a friction wheel arranged at the upper end of the vertical shaft. Two active bevel gears corresponding to the guarantee mechanisms are arranged on the outer roller. In the corresponding guarantee mechanism and the active bevel gear: the piston of the retracting cylinder divides the inner part of the cylinder body of the retracting cylinder into a retracting air chamber and a retracting sub-chamber, the retracting sub-chamber is provided with a retracting spring for resetting the piston of the retracting cylinder, and the positioning sub-chamber, the positioning exhaust pipe and the retracting air chamber are connected in sequence; Also included is an exhaust valve system for exhausting the retraction air chamber.

8. The roller line lifting and transferring device according to claim 7 is characterized in that: The exhaust valve system comprises an end exhaust pipe, and a needle valve arranged on the end exhaust pipe and capable of being pushed open by a tensioning cone wheel, wherein the needle of the needle valve is located above the tensioning cone wheel; For a protection mechanism: the positioning sub-chamber, the positioning exhaust pipe and the withdrawal air chamber are connected in sequence, and one end of the terminal exhaust pipe is connected to the withdrawal air chamber: When the long pressure strip presses the side wall of the peripheral box: the cylinder rod of the positioning cylinder is in the extended state, and the tensioning cone wheel is separated from the ejector pin of the ejector pin valve; When the rod of the positioning cylinder contracts to the limit position: in the process of adjusting the roller line rising to the limit height, at a certain moment, the tensioning cone wheel will push the ejector pin of the ejector pin valve upward.

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