Double-stroke cache machine and cache method thereof

Abstract

The invention discloses a double-stroke temporary storage machine and a temporary storage method thereof.The double-stroke temporary storage machine comprises a temporary storage frame and an upper temporary storage rail, a double-stroke jacking mechanism used for temporarily storing defective product carriers on the upper temporary storage rail to the temporary storage frame is arranged below the temporary storage frame, and the double-stroke jacking mechanism comprises a fixing frame connected with a rack; the device further comprises a servo motor and a lifting frame, the servo motor is installed at the lower end of the lifting frame, a first synchronous belt tooth-shaped wheel is arranged at the driving end of the servo motor, a second synchronous belt tooth-shaped wheel is arranged at the upper end of the lifting frame, the device further comprises a first synchronous belt, the first synchronous belt winds around the first synchronous belt wheel and the second synchronous belt wheel, and the second synchronous belt winds around the second synchronous belt wheel. The lifting frame is vertically connected with the fixed frame in a sliding mode, the jacking frame is connected with the lifting frame in a sliding mode, the fixed frame and the jacking frame are fixed to the two sides of the first synchronous belt respectively, and according to the structure, the jacking height of the jacking plate can be increased while the height of the jacking mechanism is not changed.

Description

Technical Field

[0001] The present invention relates to the field of defective product caching, and particularly to a double-stroke caching machine and its caching method. Background Art

[0002] In the current product production process, once a defective product is detected, in order to prevent these defective products from flowing into the next process, caching devices are usually used to temporarily store these products. Existing caching devices mainly consist of a caching rack and a lifting mechanism installed below the caching rack. The lifting mechanism includes a lifting plate and components such as a cylinder and a lead screw for driving the lifting plate to rise. These cylinder and lead screw are fixedly connected to the bottom plate or the frame, so the lifting height of the lifting plate is limited by the length of the cylinder extension rod and the length of the lead screw. Therefore, if a sufficiently high caching rack needs to be designed, it is necessary to ensure that there is enough space for the bottom lifting mechanism, which makes it difficult to apply such a structure in an environment with limited space height. Summary of the Invention

[0003] The technical problem solved by the present invention is to provide a double-stroke caching machine, which can reduce the design height of the bottom lifting mechanism.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a double-stroke caching machine, including a frame, a caching upper track is provided on the frame, a caching rack is provided above the caching upper track, and a double-stroke lifting mechanism for caching the defective product carrier on the caching upper track onto the caching rack is provided below the caching rack;

[0005] The double-stroke lifting mechanism includes a fixed frame connected to the frame, and also includes a servo motor and a lifting frame. The servo motor is installed at the lower end of the lifting frame, a first synchronous belt toothed wheel is provided at the driving end of the servo motor, a second synchronous belt toothed wheel is provided at the upper end of the lifting frame, and a first synchronous belt is also included. The first synchronous belt bypasses the first synchronous belt toothed wheel and the second synchronous belt toothed wheel respectively. The lifting frame is vertically slidably connected to the fixed frame. A lifting frame is also included, a lifting plate is provided at the top end of the lifting frame, the lifting frame is slidably connected to the lifting frame, a first synchronous belt clamping mechanism is provided on the fixed frame, a second synchronous belt clamping mechanism is provided on the lifting frame, and the first synchronous belt clamping mechanism and the second synchronous belt clamping mechanism are respectively fixed on both sides of the first synchronous belt.

[0006] Further: the caching rack includes a frame body, multiple layers of partitions are relatively provided on both sides of the frame body, and support plates are provided on the opposite sides of each layer of partition. The support plates are rotatably connected to the partitions through hinges.

[0007] Further: a first detection sensor for detecting whether there is a product is provided on one side of the caching rack corresponding to each layer of partition.

[0008] Furthermore, the double-stroke lifting mechanism is provided with a buffer lower track for docking with an external return line.

[0009] Furthermore, the cache upper rail and the cache lower rail both include a rail chassis, on which a left guide rail and a right guide rail are relatively arranged, and chain transmission lines are arranged on the left guide rail and the right guide rail, and also include a chain drive motor, and a sprocket is arranged at the driving end of the chain drive motor, and the sprocket is meshed with the chain transmission line.

[0010] Furthermore, the track chassis is provided with a track adjustment mechanism for driving the right track to move relative to the left track;

[0011] The track adjustment mechanism includes a first driving screw and a second driving screw arranged at both ends of the right track, the driving ends of the first driving screw and the second driving screw are fixedly connected to the right track, and also includes an adjustment drive motor, the driving end of the adjustment drive motor is provided with a driving wheel, the ends of the first driving screw and the second driving screw are respectively provided with a first synchronous wheel and a second synchronous wheel, and the driving wheel, the first synchronous wheel and the second synchronous wheel are connected by a second synchronous belt transmission.

[0012] Furthermore, a second detection sensor for detecting whether there is a product is arranged on the inner side of the left guide rail or the inner side of the right track.

[0013] Furthermore, a blocking plate and a blocking driving cylinder for driving the blocking plate to move up and down are arranged at the discharging end of the upper track of the buffer.

[0014] The present invention also discloses a double-stroke caching method, which is as follows: the fixture is located at the upper track of the cache, the servo motor drives the first synchronous belt toothed wheel to rotate, thereby driving the first synchronous belt to rotate, the first synchronous belt drives the servo motor to rise relative to the fixed frame, and at the same time the first synchronous belt drives the lifting frame to rise, thereby causing the lifting frame to move upward twice the rotation distance relative to the servo motor to lift the fixture at the upper track of the cache and cache it on the cache frame.

[0015] Furthermore, when the jig is located at the upper track of the cache, if the product on the jig is a defective product, the product needs to be stored on the cache rack, and the blocking drive cylinder drives the blocking plate to rise to block the jig;

[0016] If the product on the fixture is good, the blocking plate is in a lowered state, and the fixture drives the product to move directly to the next station.

[0017] The beneficial effects of the present invention are:

[0018] 1. In this structure, by designing the servo motor and the fixed frame into a sliding connection structure, when driving the belt strip to move, not only can the lifting frame move upward, but the servo motor itself can also move upward. As a result, the total stroke of the lifting frame is the sum of the stroke of the belt strip driving the lifting frame and the upward movement stroke of the servo motor. Therefore, it is possible to increase the lifting height of the lifting plate without changing the height of the lifting mechanism.

[0019] 2. In this structure, by rotatably connecting the support plate and the partition plate, when the lifting plate descends, the defective product carrier can directly fall on the support plate.

[0020] 3. By providing a track adjusting mechanism in the upper buffer track and the lower buffer track, the distance between the left guide rail and the right guide rail can be changed, so that the upper buffer track and the lower buffer track can adapt to the use of carriers of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the double-stroke buffer machine according to an embodiment of the present application.

[0022] Figure 2 It is a schematic structural diagram of the double-stroke lifting mechanism of the double-stroke buffer machine according to an embodiment of the present application.

[0023] Figure 3 It is a schematic structural diagram of the double-stroke lifting mechanism of the double-stroke buffer machine from another perspective according to an embodiment of the present application.

[0024] Figure 4 It is a schematic structural diagram of the upper buffer track of the double-stroke buffer machine according to an embodiment of the present application.

[0025] In the figure, the markings are: frame 1, upper buffer track 2, track bottom frame 21, left guide rail 22, right guide rail 23, chain transmission line 24, chain drive motor 25, first drive lead screw 26, second drive lead screw 27, adjustment drive motor 28, drive wheel 29, first synchronous pulley 210, second synchronous pulley 211, second synchronous belt 212, second detection sensor 213, buffer rack 3, rack body 31, partition plate 32, support plate 33, hinge 34, first detection sensor 35, double-stroke lifting mechanism 4, fixed frame 41, servo motor 42, lifting frame 43, first synchronous belt toothed wheel 44, second synchronous belt toothed wheel 45, first synchronous belt 46, lifting frame 47, lifting plate 48, first synchronous belt clamping mechanism 49, second synchronous belt clamping mechanism 410, blocking plate 5, lower buffer track 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be made in conjunction with the accompanying drawings.

[0027] like Figure 1 As shown, the embodiment of the present application discloses a double-stroke buffering machine, comprising a frame 1, a buffering upper track 2 is arranged on the frame 1, a buffering rack 3 is arranged above the buffering upper track 2, and a double-stroke lifting mechanism 4 is arranged below the buffering rack 3 for caching defective product carriers on the buffering upper track 2 to the buffering rack 3;

[0028] The double-stroke lifting mechanism 4 includes a fixed frame 41 connected to the frame 1, and also includes a servo motor 42 and a lifting frame 43. The servo motor 42 is installed at the lower end of the lifting frame 43. The driving end of the servo motor 42 is provided with a first synchronous belt toothed wheel 44, and the upper end of the lifting frame 43 is provided with a second synchronous belt toothed wheel 45. It also includes a first synchronous belt 46, and the first synchronous belt 46 passes around the first synchronous belt toothed wheel 44 and the second synchronous belt toothed wheel 45 respectively. The lifting frame 43 is vertically slidably connected to the fixed frame 41, and also includes a lifting frame 47. The top of the lifting frame 47 is provided with a lifting plate 48. The lifting frame 47 is slidably connected to the lifting frame 43. A first synchronous belt clamping mechanism 49 is provided on the fixed frame 41, and a second synchronous belt clamping mechanism 410 is provided on the lifting frame 47. The first synchronous belt clamping mechanism 49 and the second synchronous belt clamping mechanism 410 are respectively fixed on both sides of the first synchronous belt 46.

[0029] Specifically, the jig moves to the cache upper track 2, the servo motor 42 drives the first synchronous belt toothed wheel 44 to rotate, thereby driving the first synchronous belt 46 to rotate, and the first synchronous belt 46 drives the servo motor 42 to rise relative to the fixed frame 41. At the same time, the first synchronous belt 46 drives the lifting frame 47 to rise, thereby causing the lifting frame 47 to move upward at twice the rotation distance relative to the servo motor 42 to lift the jig on the cache upper track 2 and cache it on the cache frame 3.

[0030] In this structure, the servo motor 42 and the fixed frame 41 are designed to be a sliding connection structure, so that when the belt is driven to move, not only the lifting frame 47 can move upward, but the servo motor 42 itself can also move upward, so that the total stroke of the lifting frame 47 is the stroke of the lifting frame 47 driven by the belt plus the stroke of the upward movement of the servo motor 42, thereby achieving the improvement of the lifting height of the lifting plate 48 without changing the height of the lifting mechanism.

[0031] In this embodiment, the cache rack 3 includes a frame body 31 , and multiple layers of partitions 32 are arranged on both sides of the frame body 31 . A support plate 33 is arranged on the opposite side of each layer of partition 32 , and the support plate 33 is rotatably connected to the partition 32 via a hinge 34 .

[0032] Specifically, when the defective product carrier is lifted to the buffer position, the upper support plate 33 of the defective product carrier is lifted. Under the action of the upward lifting force, the support plate 33 rotates towards the partition plate 32, enabling the defective product carrier to pass through the support plate 33 and be located above the support plate 33. After the defective product carrier passes through the support plate 33, under the action of the gravity of the support plate 33 itself, the support plate 33 falls back. Then, the double-stroke lifting mechanism 4 retracts downward. The defective product carrier falls under the action of gravity and lands on the support plate 33, and is supported by the support plate 33.

[0033] In this structure, by rotatably connecting the support plate 33 with the partition plate 32, after the lifting plate 48 descends, the defective product carrier can directly land on the support plate 33.

[0034] In this embodiment, a first detection sensor 35 for detecting whether there is a product is provided on one side of the buffer rack 3 corresponding to each layer of the partition plate 32.

[0035] Specifically, after the defective product carrier is stored in the buffer rack 3, the first detection sensor 35 at the corresponding layer of the partition plate 32 will detect that there is already a defective product carrier stored in the current layer, and subsequent defective product carriers need to be stored in the empty lower layer.

[0036] The setting of the first detection sensor 35 in this structure can detect whether there is a carrier stored on each layer, thereby preventing the situation of carrier collision.

[0037] In this embodiment, the double-stroke lifting mechanism 4 is provided with a buffer lower track 6 for docking with an external return line.

[0038] Specifically, when this buffer machine is in use, the buffer upper track 2 can be connected to an external conveyor line, and the buffer lower track 6 can be connected to an external return line. When a jig passes through the buffer upper track 2, if the product on the jig is a defective product, the product needs to be stored on the buffer rack 3. If the product on the jig is a non-defective product, the jig drives the product to directly move to the next station. At the same time, since the return line is docked with the buffer lower track 6, the empty jig can finally return to the starting position.

[0039] In this mechanism, through the setting of the buffer lower track 6, the docking of the mechanism with the return line can be realized, thereby expanding the usage scenario of the entire mechanism.

[0040] In this embodiment, both the buffer upper track 2 and the buffer lower track 6 include a track bottom frame 21. Oppositely arranged on the track bottom frame 21 are a left guide rail 22 and a right guide rail 23. Chain transmission lines 24 are arranged on both the left guide rail 22 and the right guide rail 23. It further includes a chain drive motor 25. A sprocket is arranged at the drive end of the chain drive motor 25, and the sprocket meshes with the chain transmission line 24.

[0041] The track chassis 21 is provided with a track adjustment mechanism for driving the right track to move relative to the left track;

[0042] The track adjustment mechanism includes a first driving screw rod 26 and a second driving screw rod 27 arranged at both ends of the right track, and the driving ends of the first driving screw rod 26 and the second driving screw rod 27 are fixedly connected to the right track. It also includes an adjustment drive motor 28, and the driving end of the adjustment drive motor 28 is provided with a driving wheel 29. The ends of the first driving screw rod 26 and the second driving screw rod 27 are respectively provided with a first synchronous wheel 210 and a second synchronous wheel 211. The driving wheel 29, the first synchronous wheel 210 and the second synchronous wheel 211 are connected through a second synchronous belt 212.

[0043] It should be explained that the cache rack 3 includes a left frame body 31 and a right frame body 31, wherein a waist-shaped groove is provided at the bottom of at least one of the frames 31, and the connection between the left frame body 31, the right frame body 31 and the frame 1 is achieved by bolts passing through the waist-shaped groove. At the same time, due to the setting of the waist-shaped groove, the diameter spacing between the left frame body 31 and the right frame body 31 can be adjusted.

[0044] Specifically, during transmission, the carrier is transmitted forward under the action of the chain transmission line 24. When the specifications of the product change, the drive motor 28 can be adjusted to drive the drive wheel 29 to rotate, thereby driving the first synchronous wheel 210 and the second synchronous wheel 211 to rotate, and then the first drive screw rod 26 and the second drive screw rod 27 to rotate, so that the right track can move relative to the left track, thereby realizing the transmission of carriers of different specifications by adjusting the distance between the left track and the right track.

[0045] In this structure, by setting a track adjustment mechanism in the cache upper track 2 and the cache lower track 6, the distance between the left guide rail and the right guide rail 23 can be changed, so that the cache upper track 2 and the cache lower track 6 can adapt to the use of vehicles of different specifications.

[0046] In this embodiment, a second detection sensor 213 for detecting the presence of a product is provided on the inner side of the left guide rail 22 or the inner side of the right guide rail;

[0047] Specifically, the discharging end of the cache upper track 2 is provided with a blocking plate 5 and a blocking driving cylinder for driving the blocking plate 5 to perform lifting motion.

[0048] Specifically, when the carrier moves to the cache upper track 2, the second detection sensor 213 detects the presence of a product and receives the judgment of the previous workstation on whether the product is good or defective. If the product on the carrier is good, the blocking plate 5 is in a lowered state, and the fixture drives the product to move directly to the next workstation. If the product on the fixture is defective, the product needs to be stored on the cache rack 3, and the blocking drive cylinder drives the blocking plate 5 to rise to block the fixture.

[0049] In this structure, the presence of a product can be judged by the setting of the second detection sensor 213. At the same time, the setting of the baffle 5 enables the baffle 5 to block the product when the product is defective, preventing the carrier from being transmitted backward when it needs to be cached and lifted.

[0050] The present invention also discloses a double-stroke caching method, which is as follows: The jig is located at the caching upper track 2, and the servo motor 42 drives the first synchronous belt toothed wheel 44 to rotate, thereby driving the first synchronous belt 46 to rotate. The first synchronous belt 46 drives the servo motor 42 to rise relative to the fixed frame 41. At the same time, the first synchronous belt 46 drives the lifting frame 47 to rise, so that the lifting frame 47 moves upward relative to the servo motor 42 by a distance twice the rotation distance, lifting and caching the jig at the caching upper track 2 on the caching rack 3.

[0051] In this method, the servo motor 42 and the fixed frame 41 are designed as a sliding connection structure, so that while driving the belt strip to move, not only can the lifting frame 47 move upward, but the servo motor 42 itself can also move upward. Thus, the total stroke of the lifting frame 47 is the stroke of the belt strip driving the lifting frame 47 to move plus the stroke of the servo motor 42 moving upward, so that the lifting height of the lifting plate 48 can be increased without changing the height of the lifting mechanism.

[0052] Specifically, when the jig is located at the caching upper track 2, if the product on the jig is defective, the product needs to be stored on the caching rack 3, and the blocking driving cylinder drives the baffle 5 to rise to block the jig; if the product on the jig is a good product, the baffle 5 is in the lowered state, and the jig drives the product to directly move to the next working station.

[0053] In this method, the setting of the baffle 5 can be used to block the jig to be cached, preventing the jig to be cached from moving to the next working station.

[0054] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A double-pass buffering machine, characterized in that: The machine comprises a frame (1), wherein an upper cache rail (2) is arranged on the frame (1), a cache rack (3) is arranged above the upper cache rail (2), and a double-stroke lifting mechanism (4) is arranged below the cache rack (3) for caching defective product carriers on the upper cache rail (2) to the cache rack (3); The double-stroke lifting mechanism (4) comprises a fixed frame (41) connected to the frame (1), and also comprises a servo motor (42) and a lifting frame (43), wherein the servo motor (42) is mounted at the lower end of the lifting frame (43), a first synchronous belt toothed wheel (44) is arranged at the driving end of the servo motor (42), a second synchronous belt toothed wheel (45) is arranged at the upper end of the lifting frame (43), and also comprises a first synchronous belt (46), wherein the first synchronous belt (46) is passed around the first synchronous belt toothed wheel (44) and the second synchronous belt toothed wheel (45) respectively. 5), the lifting frame (43) is vertically slidably connected to the fixed frame (41), and also includes a lifting frame (47), a lifting plate (48) is arranged at the top of the lifting frame (47), the lifting frame (47) is slidably connected to the lifting frame (43), a first synchronous belt clamping mechanism (49) is arranged on the fixed frame (41), and a second synchronous belt clamping mechanism (410) is arranged on the lifting frame (47), and the first synchronous belt clamping mechanism (49) and the second synchronous belt clamping mechanism (410) are respectively fixed on both sides of the first synchronous belt (46).

2. A double-pass buffering machine as claimed in claim 1, characterized in that: The cache rack (3) comprises a frame body (31), and a plurality of partitions (32) are arranged opposite to each other on both sides of the frame body (31). A support plate (33) is arranged on the opposite side of each layer of partition (32), and the support plate (33) is rotatably connected to the partition (32) via a hinge (34).

3. A double-pass buffering machine as claimed in claim 1, characterized in that: A first detection sensor (35) for detecting the presence or absence of a product is provided on one side of the cache rack (3) corresponding to each layer of partition (32).

4. A double-pass buffering machine as claimed in claim 1, characterized in that: The double-stroke lifting mechanism (4) is provided with a buffer lower rail (6) for docking with an external return line.

5. A double-pass buffering machine as claimed in claim 1, characterized in that: The cache upper rail (2) and the cache lower rail (6) both comprise a rail chassis (21), on which a left guide rail (22) and a right guide rail (23) are arranged opposite to each other, on which a chain transmission line (24) is arranged, and a chain drive motor (25) is also included, wherein a drive end of the chain drive motor (25) is provided with a sprocket, and the sprocket is meshed with the chain transmission line (24).

6. A two-pass buffer as claimed in claim 5, characterized in that: The track chassis (21) is provided with a track adjustment mechanism for driving the right track to move relative to the left track; The track adjustment mechanism comprises a first driving screw rod (26) and a second driving screw rod (27) arranged at two ends of the right track, the driving ends of the first driving screw rod (26) and the second driving screw rod (27) are fixedly connected to the right track, and also comprises an adjustment drive motor (28), the driving end of the adjustment drive motor (28) is provided with a driving wheel (29), the ends of the first driving screw rod (26) and the second driving screw rod (27) are respectively provided with a first synchronous wheel (210) and a second synchronous wheel (211), and the driving wheel (29), the first synchronous wheel (210) and the second synchronous wheel (211) are connected by transmission through a second synchronous belt (212).

7. A two-pass buffer as claimed in claim 5, characterized in that: A second detection sensor (213) for detecting the presence or absence of a product is arranged on the inner side of the left guide rail (22) or the inner side of the right track.

8. A two-pass buffer as claimed in claim 1, characterized in that: The discharging end of the buffer upper track (2) is provided with a blocking plate (5) and a blocking driving cylinder for driving the blocking plate (5) to perform lifting motion.

9. A two-pass caching method, characterized in that: The method is as follows: the jig is located at the cache upper track (2), the servo motor (42) drives the first synchronous belt toothed wheel (44) to rotate, thereby driving the first synchronous belt (46) to rotate, the first synchronous belt (46) drives the servo motor (42) to rise relative to the fixed frame (41), and at the same time the first synchronous belt (46) drives the lifting frame (47) to rise, thereby causing the lifting frame (47) to move upward by twice the rotation distance relative to the servo motor (42) to lift the jig at the cache upper track (2) and cache it on the cache frame (3).

10. The two-pass caching method according to claim 9, characterized in that: When the jig is located at the cache upper track (2), if the product on the jig is defective, the product needs to be stored on the cache rack (3), and the blocking drive cylinder drives the blocking plate (5) to rise to block the jig; If the product on the jig is a good product, the blocking plate (5) is in a descending state, and the jig drives the product to move directly to the next workstation.

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