One-stop automatic jet printing device

Abstract

The utility model discloses a one-stop automatic jet printing device, which comprises a turntable, a feeding and discharging station, a height detection station, a surface treatment station, a jet printing station and a curing station which are arranged on a workbench, a group of positioning jigs for limiting the position of a cup are vertically and uniformly distributed on the turntable along the side of the turntable, and the cup is inversely arranged at the top of the positioning jigs; the feeding and discharging station, the height detection station, the surface treatment station, the jet printing station and the curing station are sequentially arranged along the outer edge of the rotating disc and directly face the positioning jigs one by one, a driving motor for driving the rotating disc to rotate in an indexing mode is arranged on the workbench, and the rotating disc drives the positioning jigs to synchronously switch the stations through indexing rotation. According to the scheme, connection between stations is greatly optimized, island leaving operation is avoided, the production efficiency is greatly improved, and the stable and reliable machining effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cup processing equipment, and particularly relates to a one-stop automatic spraying and printing device. Background Art

[0002] Necessary bottom label information such as product name, production country, production date, production line number, etc. needs to be marked on water cup products. Usually, for the sake of aesthetics, the necessary bottom label information is marked on the bottom of the cup. Conventional processing techniques are difficult to adapt to the printing requirements. For example, first, traditional printing techniques, such as screen printing, pad printing and other fixed-plate printing techniques, have fixed printing plates and cannot be adjusted in real time according to different bottom label information, making it inconvenient or costly to change; second, sticking printable silver-eliminating dragon stickers, the problem of such processing techniques is that the stickers are easy to fall off, or manual adhesion is used, and their positions are not precise enough, resulting in affecting aesthetics; third, laser engraving techniques will damage the surface coating of the cup body, resulting in easy peeling of the surface coating.

[0003] Therefore, in order to solve the above problems, the spraying and printing technique is a more suitable processing method. However, the spraying and printing technique needs to adjust its spraying position for products of different heights to meet the aesthetic requirements, and this adjustment link limits the efficiency of the spraying and printing process, and also makes the spraying and printing process require manual debugging and monitoring, affecting the realization of automated preparation. Considering processing efficiency and manufacturing cost, how to improve the precise control of spraying and printing to achieve an automated spraying and printing program is an urgent problem to be solved at present. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a one-stop automatic spraying and printing device.

[0005] The purpose of the utility model is realized by the following technical solutions:

[0006] A one-stop automatic spraying and printing device, including a turntable, a loading and unloading station, a height detection station, a surface treatment station, a spraying and printing station, and a curing station arranged on a workbench. A group of positioning jigs for limiting the position of the cup are vertically and evenly distributed along the side of the turntable. The cup is inverted on the top of the positioning jig. The loading and unloading station, the height detection station, the surface treatment station, the spraying and printing station, and the curing station are arranged in sequence along the outer edge of the turntable and are respectively aligned with one of the positioning jigs. A driving motor for driving the turntable to rotate by indexing is arranged on the workbench, and the turntable drives a group of the positioning jigs to synchronously switch stations by indexing rotation.

[0007] Preferably, the positioning fixture includes a fixed cylinder, a movable cylinder, and a two-way adjustment seat. The two-way adjustment seat is arranged on the turntable. The fixed cylinder is arranged on the top of the two-way adjustment seat through a positioning pin. The movable cylinder is detachably sleeved on the fixed cylinder, and the cup is inverted and positioned by the movable cylinder.

[0008] Preferably, the bottom of the movable cylinder is inserted into the fixed cylinder. Both of them are hollow inside to form a positioning space adapted to the cup. The cup is inverted in the positioning space. The top center of the movable cylinder has a through hole adapted to the bottom surface of the cup to expose the bottom surface of the cup.

[0009] Preferably, strip-shaped openings are formed on the sides of the fixed cylinder and the movable cylinder for clamping the handle of the cup.

[0010] Preferably, a convex column is provided at the center of the top of the fixed cylinder, and a groove adapted to the convex column is provided at the center of the bottom of the movable cylinder. The movable cylinder is movably sleeved on the convex column of the fixed cylinder through the groove. A limiting convex column adapted to the cup mouth of the cup is formed at the top of the movable cylinder, and the cup is sleeved on the limiting convex column.

[0011] Preferably, the loading and unloading station includes a laser positioning lamp and a first position detection sensor. The laser positioning lamp is fixed on the workbench and is covered with an outer cover outside. The laser positioning lamp defines the starting position of the rotation of the turntable through a laser. The first position detection sensor is arranged on the first vertical rod, and its height is aligned with the movable cylinder to detect the position of the cup.

[0012] Preferably, the height detection station includes a pressure plate, a lifting cylinder, a height detector, an L-shaped support rod, and a second position detection sensor. The L-shaped support rod is fixed on the outer edge of the turntable. The lifting cylinder is arranged at the top of the L-shaped support rod. The bottom driving end of the lifting cylinder is fixedly connected with the pressure plate and drives the pressure plate to abut against the bottom surface of the cup. The height detector is arranged on the top of the pressure plate to obtain the height of the cup. The second position detection sensor is arranged on the second vertical rod, and its height is aligned with the movable cylinder to detect the position of the cup.

[0013] Preferably, the surface treatment station includes a plasma cleaning head, a rotating motor, a first moving cylinder, a first moving slide rail, and a plasma electric box. The first moving slide rail is horizontally installed above the turntable. The rotating motor is slidably arranged on the first moving slide rail and is driven by the first moving cylinder to horizontally move along the first moving slide rail. The plasma electric box is arranged above the workbench and is connected to the plasma cleaning head. The plasma cleaning head is arranged at the bottom of the rotating motor and is suspended above the bottom surface of the cup. The rotating motor drives the plasma cleaning head to rotate. At the same time, the first moving cylinder drives the plasma cleaning head to horizontally move relative to the bottom surface of the cup.

[0014] Preferably, the printing station includes a print head, a servo motor, a second moving slide rail, and a third position detection sensor. The second moving slide rail is installed above the turntable through a connecting bracket. The print head is slidably arranged on the second moving slide rail and is driven by the servo motor to slide along the second moving slide rail. The third detection sensor is arranged on the connecting bracket and is directly opposite to the movable cylinder to detect the position of the cup.

[0015] Preferably, two curing stations are arranged on the turntable. Each curing station includes a UV lamp. The UV lamp is suspended above the turntable through a support rod and is directly opposite to the bottom surface of the cup. A protective cover is arranged outside the two UV lamps.

[0016] Preferably, the workbench is built into the frame, and a detector for controlling the operation of the workbench is connected to the outside of the frame.

[0017] The beneficial effects of the present utility model are mainly reflected in:

[0018] 1. Each station for realizing the printing process is evenly distributed along the outer circumference of the turntable. A positioning jig for limiting the cup is arranged on the turntable. By indexing rotation of the turntable, each station is synchronously switched, so that the cup to be processed can realize continuous printing, greatly optimizing the connection between stations, avoiding island operation, greatly improving production efficiency, and achieving a stable and reliable processing effect by using the printing process;

[0019] 2. The positioning jig adopts the cooperation of a fixed cylinder and a movable cylinder, so that different specifications of cups can be adapted by replacing the movable cylinder. The fixed cylinder is arranged on the bidirectional adjustment seat through a positioning pin, so that a quick-release structure is formed between the positioning jig and the turntable, facilitating the overall disassembly and assembly of the positioning jig. The bidirectional adjustment seat can accurately adjust the position of the positioning jig in two directions to ensure the adaptation between the positioning jig and each station and guarantee the processing accuracy;

[0020] 3. Before printing, set up a height detection station to detect the height of the cups, so as to prevent the mixing of abnormal products or mixed materials of different specifications, avoid the appearance of defective products, and also avoid collisions between overly tall cups and subsequent stations, causing additional damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The technical solution of the present utility model will be further described below in conjunction with the drawings:

[0022] Figure 1 : Schematic diagram of an embodiment of the present utility model;

[0023] Figure 2 : Schematic diagram of removing the frame of an embodiment of the present utility model;

[0024] Figure 3 : Schematic diagram of a partial structure of an embodiment of the present utility model;

[0025] Figure 4 : Schematic diagram of the curing station of an embodiment of the present utility model;

[0026] Figure 5 : Top view of a partial structure of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present utility model will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, these embodiments are not limited to the present utility model, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included in the protection scope of the present utility model.

[0028] In the description of the solution, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplification of 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 should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. And, in the description of the solution, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0029] Such as Figures 1 to 5As shown in the figure, the present utility model discloses a one-stop automatic spraying and printing device, which includes a turntable 1, a loading and unloading station, a height detection station, a surface treatment station, a spraying and printing station, and a curing station arranged on a workbench. A group of positioning jigs for defining the position of the cup are vertically and evenly distributed along the side of the turntable 1. The cup is inverted on the top of the positioning jig. The loading and unloading station, the height detection station, the surface treatment station, the spraying and printing station, and the curing station are sequentially arranged along the outer edge of the turntable 1 and are respectively aligned with one of the positioning jigs. A driving motor 105 for driving the turntable 1 to rotate by indexing is arranged on the workbench. The turntable 1 drives a group of the positioning jigs to synchronously switch stations by indexing rotation.

[0030] This solution realizes the even distribution of each station of the spraying and printing process along the outer circumference of the turntable 1. Positioning jigs for defining the cup are arranged on the turntable 1, and each station is synchronously switched by the indexing rotation of the turntable 1, so that the cups to be processed can realize continuous spraying and printing, greatly optimizing the connection between stations, avoiding island operation, greatly improving production efficiency, and achieving a stable and reliable processing effect by using the spraying and printing process.

[0031] In order to facilitate the positioning of the cup, the positioning jig includes a fixed cylinder 101, a movable cylinder 102 and a two-way adjustment seat 103. The two-way adjustment seat 103 is arranged on the turntable 1. The fixed cylinder 101 is arranged on the top of the two-way adjustment seat 103 through a positioning pin. The movable cylinder 102 is detachably sleeved on the fixed cylinder 101. The cup is inverted and its position is limited by the movable cylinder 102. The positioning jig adopts the cooperation of the fixed cylinder 101 and the movable cylinder 102. The fixed cylinder 101 is arranged on the two-way adjustment seat 103 through a positioning pin (not shown in the figure) to form a quick-release structure between the positioning jig and the turntable 1. Among them, the two-way adjustment seat 103 is a position adjustment device that can be adjusted in two directions. The two-way adjustment seat 103 can accurately adjust the position of the positioning jig from two directions to ensure the adaptation between the positioning jig and each working station and guarantee the processing accuracy. This is the prior art and will not be elaborated here. A connecting plate body is arranged on the two-way adjustment seat 103. The positioning pin is vertically arranged at the center of the connecting plate body. A through hole matching the positioning pin is arranged at the center of the fixed cylinder 101 to pass through the positioning pin, realizing the quick disassembly and assembly between the fixed cylinder 101 and the connecting plate body and facilitating the overall disassembly and assembly of the positioning jig. In other feasible embodiments, a set of pluggable pins and through holes are arranged between the connecting plate body and the fixed cylinder 101 to ensure the connection stability between the two. The movable cylinder 102 is a structure that can be quickly disassembled and assembled with the fixed cylinder 101. The movable cylinder 102 is used to adapt to the cup to be processed to fix the cup. Therefore, in different feasible embodiments, different specifications of the movable cylinder 102 can be replaced to adapt to different specifications of cups, so as to expand the applicable range and improve the applicability.

[0032] Furthermore, the positioning jig can have different feasible embodiments. For example Figure 1 and Figure 2 The figure shows the first embodiment of the positioning jig. In the first embodiment, both the fixed cylinder 101 and the movable cylinder 102 are hollow cylindrical structures. The bottom of the movable cylinder 102 is inserted into the fixed cylinder 101. Both of them are hollow inside to form a positioning space adapted to the cup. The cup is inverted in the fixed cylinder 101 and its position is limited by the movable cylinder 102. A through hole 1021 adapted to the bottom surface of the cup is provided at the center of the top of the movable cylinder 102 to expose the bottom surface of the cup.

[0033] Furthermore, in order to adapt to cups with cup handles, strip-shaped openings 104 are provided on the sides of both the fixed cylinder 101 and the movable cylinder 102. The strip-shaped openings 104 formed on the side of the positioning jig composed of the two are matched with the cup handles of the cup to clamp the handles of the cup and complete the limitation of the cup.

[0034] In the second embodiment of the positioning fixture (not shown in the figure), the fixed cylinder 101 and the movable cylinder 102 are frustum structures with a convex limiting protrusion on the axis. Specifically, a convex column is provided at the axis of the top of the fixed cylinder 101, and a groove adapted to the convex column is provided at the axis of the bottom of the movable cylinder 102. The movable cylinder 102 is movably sleeved on the convex column of the fixed cylinder 101 through the groove. A limiting convex column adapted to the cup mouth of the cup is formed at the top of the movable cylinder 102, and the cup is sleeved on the limiting convex column.

[0035] In the preferred embodiment, in order to ensure the curing effect, two curing positions are provided. Therefore, a total of six processing positions including a loading and unloading position, a height detection position, a surface treatment position, a printing position, and two curing positions are provided on the outside of the turntable 1. The turntable 1 is an annular shape with a hollow axis. Six positioning fixtures corresponding to the processing positions are provided on the turntable 1. The turntable 1 rotates at a indexing angle of 60° to ensure that the positioning fixtures correspond to the processing positions one by one, realizing continuous processing and improving processing efficiency.

[0036] Specifically, as Figures 1 - 5 shown, the loading and unloading position includes a laser positioning lamp 201 and a first position detection sensor 202. The laser positioning lamp 201 is fixed on the workbench, and an outer cover 203 is provided outside it. The laser positioning lamp 201 defines the starting position of the rotation of the turntable 1 through laser, and the laser positioning lamp 201 emits laser to the turntable 1 to mark the starting position. The first position detection sensor 202 is arranged on the first vertical rod, and its height is opposite to the movable cylinder 102 to detect the position of the cup. The first position detection sensor 202 is an infrared sensor to detect whether a cup is placed on the movable cylinder 102, avoiding empty rotation due to omission.

[0037] The height detection station includes a pressure plate 301, a lifting cylinder 302, a height detector 303, an L-shaped support rod 304, and a second position detection sensor 305. The L-shaped support rod 304 is fixedly provided at the outer edge of the turntable 1. The lifting cylinder 302 is arranged at the top of the L-shaped support rod 304. The bottom driving end of the lifting cylinder 302 is fixedly connected with the pressure plate 301 and drives the pressure plate 301 to abut against the bottom surface of the cup. The height detector 303 is arranged on the top of the pressure plate 301 to obtain the height of the cup. The second position detection sensor 305 is arranged on the second vertical rod, and its height is opposite to the movable cylinder body 102 to detect the position of the cup. The second position detection sensor 305 is also preferably an infrared sensor, which is used to detect whether the cup is in place. After detecting that the cup is in place, it controls the lifting cylinder 302 to drive the pressure plate 301 to descend and abut against the bottom surface of the cup, and then engages the height detector 303 to detect the bottom surface height of the cup, and compares it with the set target height to determine whether the cup is the target product. The target height is set according to the height of the cup to be processed. Before printing, a height detection station is set up to detect the height of the cup, so as to screen the feeding in the loading and unloading station, prevent abnormal products or mixed materials of different specifications from being mixed in, avoid the appearance of defective products, and also avoid collisions between too-high cups and subsequent stations, resulting in additional damage, and ensure the completion pass rate of subsequent stations.

[0038] The surface treatment station includes a plasma cleaning head 401, a rotary motor 402, a first moving cylinder 403, a first moving slide rail 404, and a plasma electric box 405. The first moving slide rail 404 is horizontally installed above the turntable 1. The rotary motor 402 is slidably arranged on the first moving slide rail 404 and is driven by the first moving cylinder 403 to horizontally move along the first moving slide rail 404. The plasma electric box 402 is arranged on the frame 7 above the workbench and is connected to the plasma cleaning head 401 through a connecting rotating shaft. The connecting rotating shaft passes through the rotary motor 402. The plasma cleaning head 401 is arranged at the bottom of the rotary motor 402 and is suspended above the bottom surface of the cup. The rotary motor 402 drives the plasma cleaning head 401 to rotate. At the same time, the first moving cylinder 403 drives the plasma cleaning head 401 to horizontally move relative to the bottom surface of the cup. The plasma cleaning head 401 can, on the one hand, perform surface cleaning treatment on the bottom surface of the cup through translation and rotation to ensure the cleanliness of the bottom surface of the cup; on the other hand, increase the roughness and activity of the bottom surface of the cup, improve the surface tension and printing adhesion of the printing area on the bottom surface, and ensure the fastness and effect of spraying. The height of the first moving slide rail 404 is set according to the height of the cup to be adapted to the bottom surface of the cup.

[0039] The printing station includes a nozzle 501, a servo motor 502, a second moving slide rail 503 and a third position detection sensor 504. The second moving slide rail 503 is mounted above the turntable 1 through a connecting bracket 505. The nozzle 501 is slidably arranged on the second moving slide rail 503 and is driven by the servo motor 502 to slide along the second moving slide rail 503. The third detection sensor 504 is arranged on the connecting bracket 505 and faces the movable cylinder 102 to detect the position of the cup. The third detection sensor 504 is preferably an infrared sensor, which is used to detect the cup in place, and at the same time cooperates with the servo motor 502 to control the nozzle 501 to face the printing area on the bottom surface of the cup, ensuring that the nozzle 501 prints correctly. The height of the second moving slide rail 503 is set according to the height of the cup to adapt to the bottom surface of the cup.

[0040] To ensure the curing effect, two curing stations are provided on the turntable 1. Each curing station includes a UV lamp 601. The UV lamp 601 is suspended above the turntable 1 through a support rod 602 and faces the bottom surface of the cup. A protective cover 603 is provided outside the two UV lamps 601 to prevent the UV lamp 601 from causing light pollution to the external environment, avoiding the UV lamp 601 affecting the nozzle 501 and causing blockage, and also avoiding accidentally irradiating the surrounding staff.

[0041] Further, the workbench is built into the frame 7. A detector 701 for controlling the operation of the workbench is connected to the outside of the frame 7 to facilitate the monitoring and operation of the operator. Other necessary mechanisms are also included in the frame, which will not be listed one by one here.

[0042] It should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0043] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. One-stop automatic spraying and printing device, characterized in that: It includes a turntable (1) arranged on a workbench, a loading and unloading station, a height detection station, a surface treatment station, a printing station, and a curing station. Along the side of the turntable (1), a group of positioning jigs for defining the position of the cup are vertically and evenly distributed. The cup is inverted on the top of the positioning jig. The loading and unloading station, the height detection station, the surface treatment station, the printing station, and the curing station are sequentially arranged along the outer edge of the turntable (1) and are respectively aligned with one of the positioning jigs. A driving motor (105) for driving the turntable (1) to rotate by indexing is arranged on the workbench. The turntable (1) drives a group of the positioning jigs to synchronously switch stations by indexing rotation.

2. The one-stop automatic spraying and printing device according to claim 1, wherein: The positioning jig includes a fixed cylinder (101), a movable cylinder (102), and a bidirectional adjustment seat (103). The bidirectional adjustment seat (103) is arranged on the turntable (1). The fixed cylinder (101) is arranged on the top of the bidirectional adjustment seat (103) through a positioning pin. The movable cylinder (102) is detachably sleeved on the fixed cylinder (101). The cup is inverted and its position is defined by the movable cylinder (102).

3. The one-stop automatic spraying and printing device according to claim 2, characterized in that: The bottom of the movable cylinder (102) is inserted into the fixed cylinder (101). Both of them are hollow inside to form a positioning space adapted to the cup. The cup is inverted in the positioning space. The top center of the movable cylinder (102) has a through hole (1021) adapted to the bottom surface of the cup to expose the bottom surface of the cup.

4. The one-stop automatic spraying and printing device according to claim 3, characterized in that: Strip-shaped openings (104) are formed on the sides of both the fixed cylinder (101) and the movable cylinder (102) for clamping the handle of the cup.

5. The one-stop automatic spraying and printing device according to claim 2, wherein: The top center of the fixed cylinder (101) has a convex column. The bottom center of the movable cylinder (102) has a groove adapted to the convex column. The movable cylinder (102) is movably sleeved on the convex column of the fixed cylinder (101) through the groove. A limiting convex column adapted to the cup mouth of the cup is formed on the top of the movable cylinder (102). The cup is sleeved on the limiting convex column.

6. The one-stop automatic spraying and printing device according to any one of claims 3-5, characterized in that: The loading and unloading station includes a laser positioning lamp (201) and a first position detection sensor (202). The laser positioning lamp (201) is fixed on the workbench and is covered with an outer cover (203). The laser positioning lamp (201) defines the starting position of the rotation of the turntable (1) through laser. The first position detection sensor (202) is arranged on a first vertical rod, and its height is aligned with the movable cylinder (102) to detect the position of the cup.

7. The one-stop automatic spraying and printing device according to claim 6, wherein: The height detection station includes a pressure plate (301), a lifting cylinder (302), a height detector (303), an L-shaped support rod (304), and a second position detection sensor (305). The L-shaped support rod (304) is fixedly arranged on the outer edge of the turntable (1). The lifting cylinder (302) is arranged at the top of the L-shaped support rod (304). The bottom driving end of the lifting cylinder (302) is fixedly connected with the pressure plate (301) and drives the pressure plate (301) to abut against the bottom surface of the cup. The height detector (303) is arranged on the top of the pressure plate (301) to obtain the height of the cup. The second position detection sensor (305) is arranged on the second vertical rod, and its height is opposite to the movable cylinder body (102) to detect the position of the cup.

8. The one-stop automatic spraying and printing device according to claim 7, wherein: The surface treatment station includes a plasma cleaning head (401), a rotating motor (402), a first moving cylinder (403), a first moving slide rail (404), and a plasma electric box (405). The first moving slide rail (404) is horizontally arranged above the turntable (1). The rotating motor (402) is slidably arranged on the first moving slide rail (404) and is driven by the first moving cylinder (403) to horizontally move along the first moving slide rail (404). The plasma electric box (405) is arranged above the workbench and is connected with the plasma cleaning head (401). The plasma cleaning head (401) is arranged at the bottom of the rotating motor (402) and is suspended above the bottom surface of the cup. The rotating motor (402) drives the plasma cleaning head (401) to rotate. At the same time, the first moving cylinder (403) drives the plasma cleaning head (401) to horizontally move relative to the bottom surface of the cup.

9. The one-stop automatic spraying and printing device according to claim 8, characterized in that: The printing station includes a nozzle (501), a servo motor (502), a second moving slide rail (503), and a third position detection sensor (504). The second moving slide rail (503) is arranged above the turntable (1) through a connecting bracket (505). The nozzle (501) is slidably arranged on the second moving slide rail (503) and is driven by the servo motor (502) to slide along the second moving slide rail (503). The third position detection sensor (504) is arranged on the connecting bracket (505) and is opposite to the movable cylinder body (102) to detect the position of the cup.

10. The one-stop automatic spraying and printing device according to claim 9, characterized in that: There are two curing stations arranged on the turntable (1). Each curing station includes a UV lamp (601). The UV lamp (601) is suspended above the turntable (1) through a support rod (602) and is opposite to the bottom surface of the cup. A protective cover (603) is arranged outside the two UV lamps (601).

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