Corrugated board slotting die-cutting machine

Abstract

The utility model belongs to the technical field of corrugated paper production, and discloses a corrugated board slotting die-cutting machine which comprises a base, two sets of side plates are installed on the upper surface of the base, clamping grooves are formed in the upper surfaces of the two sets of side plates, slotting mechanisms are connected into the clamping grooves of the two sets of side plates in a sliding mode, and pushing mechanisms are installed on the upper surfaces of the two sets of side plates. A groove is formed in the side, close to the pushing mechanism, of the left side plate, a collecting mechanism for limiting the falling path of waste paper in the grooving mechanism is installed in the groove of the left side plate, a groove is formed in the front face of the base, and two storage mechanisms are slidably connected into the groove of the base. And the collecting mechanism is moved to the right lower end of the cutter, so that waste paper clamped in the cutter falls into the collecting mechanism in the subsequent pushing process of the pushing mechanism, and the situation that waste materials fall onto the upper surface of the base in the process that the waste materials clamped in the cutter are pushed by the subsequent pushing mechanism to move is avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paper production, in particular to a corrugated paperboard slotting and die-cutting machine. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which is composed of at least one layer of corrugated core paper and one layer of cardboard. It has high mechanical strength and can withstand collisions and falls during transportation. The actual performance of corrugated cardboard depends on three factors: the characteristics of the core paper and cardboard and the structure of the carton itself.

[0003] For example, the utility model with announcement number CN216100647U discloses a corrugated cardboard slotting and die-cutting machine, including pillars, wherein the pillars are provided with two, and the interiors of the two pillars are penetrated with sliding grooves, and the interiors of the two sliding grooves are slidably connected with two sliders, and a No. 1 roller and a No. 2 roller are rotatably connected between the two opposing sliders, and the outer wall of the No. 1 roller is fixedly connected with a No. 1 arc-shaped mounting plate, and the outer wall of the No. 2 roller is fixedly connected with a No. 2 arc-shaped mounting plate at a position relative to the No. 1 arc-shaped mounting plate. The utility model has the following advantages: a push block is provided inside the cutter of the cutting device, and when the cutter leaves the matching groove of the No. 2 arc-shaped mounting plate after cutting, the push block leaves the support of the support block, and under the push of the spring, the push block pushes out the waste material entering the cutter, and no manual cleaning is required to prevent affecting subsequent cutting. The two rollers of the device can move away from and close to each other through the adjustment of the bidirectional screw rod, so that the equipment can adjust corrugated cardboards of different thicknesses, thereby improving the scope of application.

[0004] In the process of realizing the present application, it was found that the technology has the following problems: the existing corrugated cardboard slotting and die-cutting machine uses a pushing mechanism to push out the waste paper entering the cutter during use to prevent the waste paper from affecting subsequent cutting. However, most of the pushing mechanisms cause the waste paper to fall onto the upper surface of the corrugated cardboard during the process of pushing out the waste paper inside the cutter, making the subsequent corrugated cardboard easily affected by the waste paper during the slotting process, thereby reducing the practicality of the device.

[0005] A corrugated board slotting and die-cutting machine is proposed for this purpose. Utility Model Content

[0006] The utility model aims to solve the problem that waste paper falls on the upper surface of the corrugated board during the process of pushing out waste paper inside the cutter by most pushing mechanisms, making the subsequent corrugated board easily affected by the waste paper during the slotting process. The utility model provides a corrugated board slotting die-cutting machine.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A corrugated cardboard slotting and die-cutting machine comprises a base, wherein two groups of side panels are installed on the upper surface of the base, and the upper surfaces of the two groups of side panels are provided with slots, and slotting mechanisms are slidably connected inside the slots of the two groups of side panels, and pushing mechanisms are installed on the upper surfaces of the two groups of side panels, and a groove is provided on one side of the side panel of the left group close to the pushing mechanism, and a collecting mechanism for limiting the falling path of waste paper inside the slotting mechanism is installed inside the groove of the left group of side panels, and a groove is provided on the front side of the base, and two groups of storage mechanisms are slidably connected inside the groove of the base, and a limiting mechanism is provided at the bottom of the inner wall of the groove of the base.

[0009] Further, the slotting mechanism comprises two groups of fixed blocks, the two groups of fixed blocks are installed on opposite sides of the two groups of side plates, hydraulic cylinders are installed on the upper surfaces of the two groups of fixed blocks, top plates are installed on the output ends of the two groups of hydraulic cylinders, and a cutter is provided on the lower surface of the top plate;

[0010] The collecting mechanism includes a motor and a bidirectional threaded rod. Through holes are provided on the inner walls of the front and rear sides of the groove of the left group of side panels. The bidirectional threaded rod is rotatably connected to the two groups of through holes of the left group of side panels. The motor is installed on the front side of the left group of side panels. The output shaft of the motor passes through the through holes on the front side of the left group of side panels and is installed on the front side of the bidirectional threaded rod. The external threads of the bidirectional threaded rod are connected with two groups of sliders. The two groups of sliders are slidably connected to the grooves of the left group of side panels. A V-shaped collecting plate is provided on the side of the two groups of sliders close to the cutter. The adjacent sides of the two groups of V-shaped collecting plates are fitted together. The upper inclined surfaces of the two groups of V-shaped collecting plates are provided with slots, and the slots of the two groups of V-shaped collecting plates are clamped with U-shaped limiting plates.

[0011] Furthermore, the pushing mechanism includes a fixed plate, which is installed on the upper surfaces of the two groups of side plates. A threaded hole is provided on the upper surface of the fixed plate. A screw is connected to the internal thread of the fixed plate. A groove is provided on the upper surface of the top plate. The bottom end of the screw is inserted into the groove of the top plate.

[0012] Furthermore, the bottom of the inner wall of the two groups of V-shaped collection plate slots are provided with electric telescopic rods, the lower surfaces of the two groups of U-shaped limit plates are opened with grooves, and the output ends of the two groups of electric telescopic rods are respectively installed on the top of the inner wall of the two groups of U-shaped limit plate grooves.

[0013] Furthermore, the two groups of storage mechanisms include collection boxes, which are respectively slidably connected to the inside of the grooves of the base, and handles are provided on opposite sides of the two groups of collection boxes. The positions of the two groups of collection boxes are respectively located at the lower end of the moving path of the two groups of V-shaped collection plates.

[0014] Furthermore, the limiting mechanism includes a connecting plate, which is installed at the bottom of the inner wall of the base groove. A card slot is opened on the front of the connecting plate, and a magnetic block is installed inside the card slot of the connecting plate. The adjacent sides of the two groups of collection boxes are respectively adsorbed on the front and rear sides of the magnetic block.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model starts the motor to drive the two sets of sliders and the two sets of V-shaped collecting plates to move, and makes the adjacent sides of the two sets of V-shaped collecting plates fit together, so that the positions of the two sets of V-shaped collecting plates are moved to the lower end of the cutter, so that the waste paper stuck in the cutter during the subsequent pushing mechanism falls into the inside of the two sets of V-shaped collecting plates, thereby avoiding as much as possible that the waste paper dropped to the upper surface of the base during the subsequent pushing mechanism pushing the waste paper stuck in the cutter to move, resulting in the failure of normal slotting of the corrugated paper placed on the upper surface of the base, thereby improving the practicality of the device.

[0017] 2. The utility model has the bottom end of the screw rod penetrated inside the cutter, so that the cutter can push out the waste paper stuck inside the cutter during the process of rising in height, thereby trying to avoid the waste paper accumulated inside the cutter affecting the normal use of the cutter; the bottom end of the screw rod is driven to adjust and move in the height inside the cutter by rotating the screw rod, so that the pushing mechanism can push the waste paper of different thicknesses stuck inside the cutter during use, thereby expanding the pushing range of the pushing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front structural schematic diagram of the utility model;

[0019] Figure 2 It is a side structural schematic diagram of the utility model;

[0020] Figure 3 It is a front structural schematic diagram of the magnetic block of the utility model;

[0021] Figure 4 It is a schematic diagram of the bottom structure of the electric telescopic rod of the utility model.

[0022] Figure numerals: 1. base; 2. side panel; 3. slotting mechanism; 301. cutter; 302. top panel; 303. hydraulic cylinder; 304. fixed block; 4. collecting mechanism; 401. V-shaped collecting plate; 402. U-shaped limiting plate; 403. motor; 404. bidirectional threaded rod; 405. slider; 406. electric telescopic rod; 5. pushing mechanism; 501. screw rod; 502. fixed plate; 6. storage mechanism; 601. collecting box; 602. handle; 7. limiting mechanism; 701. connecting plate; 702. magnetic block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figures 1 to 4 As shown, a corrugated cardboard slotting die-cutting machine comprises a base 1, two groups of side panels 2 are installed on the upper surface of the base 1, and the upper surfaces of the two groups of side panels 2 are provided with slots, and slotting mechanisms 3 are slidably connected inside the slots of the two groups of side panels 2, and pushing mechanisms 5 are installed on the upper surfaces of the two groups of side panels 2, and a groove is opened on one side of the left group of side panels 2 close to the pushing mechanism 5, and a collecting mechanism 4 for limiting the path of waste paper falling inside the slotting mechanism 3 is installed inside the groove of the left group of side panels 2, a groove is opened on the front side of the base 1, and two groups of storage mechanisms 6 are slidably connected inside the groove of the base 1, and a limiting mechanism 7 is arranged at the bottom of the inner wall of the groove of the base 1;

[0028] Specifically, by starting the collecting mechanism 4, the collecting mechanism 4 is moved to the lower end of the cutter 301, so that the waste paper stuck in the cutter 301 during the subsequent pushing process of the pushing mechanism 5 falls into the collecting mechanism 4, thereby avoiding as much as possible that the waste paper falls to the upper surface of the base 1 during the subsequent pushing process of the pushing mechanism 5 pushing the waste paper stuck in the cutter 301 to move, resulting in the corrugated paper placed on the upper surface of the base 1 subsequently being unable to be slotted normally, thereby improving the practicality of the device.

[0029] like Figure 1 and Figure 2 As shown, the slotting mechanism 3 includes two groups of fixed blocks 304, which are installed on opposite sides of the two groups of side plates 2. The upper surfaces of the two groups of fixed blocks 304 are installed with hydraulic cylinders 303, and the output ends of the two groups of hydraulic cylinders 303 are installed with top plates 302, and the lower surface of the top plates 302 is provided with cutters 301;

[0030] The collecting mechanism 4 includes a motor 403 and a bidirectional threaded rod 404. Through holes are provided on the inner walls of the front and rear sides of the groove of the left group of side plates 2. The bidirectional threaded rod 404 is rotatably connected to the two groups of through holes of the left group of side plates 2. The motor 403 is installed on the front side of the left group of side plates 2. The output shaft of the motor 403 passes through the front through holes of the left group of side plates 2 and is installed on the front side of the bidirectional threaded rod 404. The external threads of the bidirectional threaded rod 404 are connected with two groups of sliders 405. The two groups of sliders 405 are slidably connected to the groove of the left group of side plates 2. A V-shaped collecting plate 401 is provided on one side of the two groups of sliders 405 close to the cutter 301. The adjacent sides of the two groups of V-shaped collecting plates 401 are fitted together. The upper inclined surfaces of the two groups of V-shaped collecting plates 401 are provided with slots, and the slots of the two groups of V-shaped collecting plates 401 are both clamped with U-shaped limiting plates 402.

[0031] Specifically, before the pushing mechanism 5 pushes out the waste paper accumulated in the cutter 301, the motor 403 is started to drive the two sets of sliders 405 and the two sets of V-shaped collecting plates 401 to move, so that the adjacent sides of the two sets of V-shaped collecting plates 401 are fitted together, so that the positions of the two sets of V-shaped collecting plates 401 are moved to the right lower end of the cutter 301, and then the waste paper stuck in the cutter 301 during the subsequent pushing process of the pushing mechanism 5 falls into the inside of the two sets of V-shaped collecting plates 401, thereby avoiding the waste paper stuck in the cutter 301 to move when the subsequent pushing mechanism 5 pushes During the movement, waste paper falls onto the upper surface of the base 1, which makes it impossible to normally groove the corrugated paper placed on the upper surface of the base 1, thereby improving the practicality of the device; the two groups of V-shaped collecting plates 401 are spliced ​​into a group of inverted V-shaped fixing plates 502 when they are fitted together, so that the waste paper that falls onto the upper surface of the two groups of V-shaped collecting plates 401 slides and fits on the inner wall on the opposite side of the two groups of U-shaped limiting plates 402, thereby minimizing the waste paper accumulated on the upper surface of the two groups of V-shaped collecting plates 401 during the unfolding process from falling onto the upper surface of the corrugated paper.

[0032] like Figure 1 and Figure 2 As shown, the pushing mechanism 5 includes a fixing plate 502, which is mounted on the upper surfaces of the two groups of side plates 2. A threaded hole is provided on the upper surface of the fixing plate 502, and a screw rod 501 is connected to the internal thread of the fixing plate 502. A groove is provided on the upper surface of the top plate 302, and the bottom end of the screw rod 501 is inserted into the groove of the top plate 302. Specifically, the bottom end of the screw rod 501 is inserted into the inside of the cutter 301, so that the cutter 301 pushes out the waste paper clamped in the inside of the cutter 301 during the process of rising in height, thereby avoiding as much as possible the waste paper accumulated in the inside of the subsequent cutter 301 affecting the normal use of the cutter 301; the screw rod 501 is rotated to drive the bottom end of the screw rod 501 to adjust and move in the height inside the cutter 301, so that the pushing mechanism 5 can push the waste paper of different thicknesses clamped in the inside of the cutter 301 during use, thereby expanding the pushing range of the pushing mechanism 5.

[0033] like Figure 1 and Figure 4As shown, the bottom of the inner wall of the slot of the two groups of V-shaped collecting plates 401 are provided with electric telescopic rods 406, and the lower surfaces of the two groups of U-shaped limiting plates 402 are provided with grooves, and the output ends of the two groups of electric telescopic rods 406 are respectively installed on the top of the inner wall of the groove of the two groups of U-shaped limiting plates 402; specifically, when too much waste paper is accumulated on the upper end of the collecting mechanism 4, the two groups of V-shaped collecting plates 401 are driven to move by starting the motor 403, and the opposite ends of the two groups of V-shaped collecting plates 401 are moved to the front and rear sides of the base 1 respectively, and then the two groups of U-shaped limiting plates 402 are pushed to move by starting the two groups of electric telescopic rods 406, so that the waste paper accumulated on the inclined surfaces of the two groups of V-shaped collecting plates 401 slides and falls, thereby completing the cleaning of the waste paper accumulated inside the collecting mechanism 4.

[0034] like Figure 1 and Figure 2 As shown, the two groups of material storage mechanisms 6 both include collection boxes 601, and the two groups of collection boxes 601 are respectively slidably connected to the inside of the grooves of the base 1, and handles 602 are provided on the opposite sides of the two groups of collection boxes 601. The positions of the two groups of collection boxes 601 are respectively located at the lower end of the moving path of the two groups of V-shaped collection plates 401; specifically, when the staff cleans up the waste paper accumulated on the surfaces of the two groups of V-shaped collection plates 401, the two groups of collection boxes 601 are moved out of the two groups of grooves of the base 1 by pulling the two groups of handles 602, so that the back The waste paper sliding down the inclined surfaces of the two groups of V-shaped collecting plates 401 falls into the two groups of collecting boxes 601, thereby avoiding as much as possible the waste paper cleaned up by the upper end of the subsequent collecting mechanism 4 from accumulating on the countertops on the front and rear sides of the base 1, thereby improving the hygiene of the device during use; the two groups of collecting boxes 601 are slidably connected to the inside of the groove of the base 1, so that the two groups of collecting boxes 601 can be removed from the inside of the groove of the base 1 during use, thereby facilitating the subsequent staff to regularly clean the waste paper accumulated inside the two groups of collecting boxes 601.

[0035] like Figure 3 As shown, the limiting mechanism 7 includes a connecting plate 701, which is installed at the bottom of the inner wall of the groove of the base 1, and a card slot is opened on the front of the connecting plate 701. A magnetic block 702 is installed inside the card slot of the connecting plate 701, and the adjacent sides of the two groups of collecting boxes 601 are respectively adsorbed on the front and back sides of the magnetic block 702; specifically, when the staff is carrying and moving the device, by pushing the two groups of collecting boxes 601, the adjacent sides of the two groups of collecting boxes 601 are respectively adsorbed on the front and back sides of the magnetic block 702, so that the limiting mechanism 7 limits the moving position of the two groups of storage mechanisms 6 inside the groove of the base 1, thereby minimizing the movement of the two groups of storage mechanisms 6 when the staff is carrying and moving the device.

[0036] In summary: by starting the motor 403 to drive the two groups of sliders 405 and the two groups of V-shaped collecting plates 401 to move, the adjacent sides of the two groups of V-shaped collecting plates 401 are fitted together, so that the positions of the two groups of V-shaped collecting plates 401 are moved to the lower end of the cutter 301, so that the waste paper stuck in the cutter 301 during the subsequent pushing mechanism 5 falls into the two groups of V-shaped collecting plates 401, thereby avoiding as much as possible that the waste material stuck in the cutter 301 falls to the upper surface of the base 1 during the subsequent pushing mechanism 5 to move the waste material, resulting in the subsequent corrugated paper placed on the upper surface of the base 1 being unable to be normally grooved; the bottom end of the screw 501 is penetrated into the cutter 301, so that the cutter 301 pushes out the waste paper stuck in the cutter 301 during the process of rising in height, thereby avoiding as much as possible that the waste paper accumulated in the subsequent cutter 301 affects the normal use of the cutter 301.

[0037] At the same time, the two groups of V-shaped collecting plates 401 are driven to move by starting the motor 403, and the opposite ends of the two groups of V-shaped collecting plates 401 are moved to the front and rear sides of the base 1 respectively, and then the two groups of electric telescopic rods 406 are started to push the two groups of U-shaped limiting plates 402 to move, so that the waste paper accumulated on the inclined surfaces of the two groups of V-shaped collecting plates 401 slide and fall, thereby completing the cleaning of the waste paper accumulated inside the collecting mechanism 4; the two groups of collection boxes 601 are driven to move out of the two groups of grooves of the base 1 by pulling the two groups of handles 602, so that the waste paper sliding down the inclined surfaces of the two groups of V-shaped collecting plates 401 falls into the inside of the two groups of collection boxes 601, thereby trying to avoid the waste paper cleaned by the upper end of the subsequent collecting mechanism 4 from accumulating on the table surfaces on the front and rear sides of the base 1.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A corrugated cardboard slotting and die-cutting machine, comprising a base (1), characterized in that: Two groups of side panels (2) are installed on the upper surface of the base (1), and the upper surfaces of the two groups of side panels (2) are provided with card slots, and the card slots of the two groups of side panels (2) are slidably connected with slotting mechanisms (3), and the upper surfaces of the two groups of side panels (2) are provided with pushing mechanisms (5), and a groove is provided on the side of the left group of side panels (2) close to the pushing mechanism (5), and a collecting mechanism (4) is installed in the groove of the left group of side panels (2) to limit the falling path of waste paper inside the slotting mechanism (3), and a groove is provided on the front side of the base (1), and two groups of storage mechanisms (6) are slidably connected inside the groove of the base (1), and a limiting mechanism (7) is provided at the bottom of the inner wall of the groove of the base (1).

2. A corrugated cardboard slotting and die-cutting machine according to claim 1, characterized in that: The slotting mechanism (3) comprises two groups of fixed blocks (304), the two groups of fixed blocks (304) are installed on opposite sides of the two groups of side plates (2), hydraulic cylinders (303) are installed on the upper surfaces of the two groups of fixed blocks (304), top plates (302) are installed on the output ends of the two groups of hydraulic cylinders (303), and a cutter (301) is provided on the lower surface of the top plate (302); The collecting mechanism (4) comprises a motor (403) and a bidirectional threaded rod (404). Through holes are provided on the inner walls of the front and rear sides of the groove of the left side panel (2). The bidirectional threaded rod (404) is rotatably connected to the two groups of through holes of the left side panel (2). The motor (403) is installed on the front side of the left side panel (2). The output shaft of the motor (403) passes through the through holes on the front side of the left side panel (2) and is installed on the front side of the bidirectional threaded rod (404). 4) is connected with two groups of sliders (405) through external threads, and the two groups of sliders (405) are slidably connected to the grooves of the left group of side plates (2), and a V-shaped collecting plate (401) is provided on the side of the two groups of sliders (405) close to the cutter (301), and the adjacent sides of the two groups of V-shaped collecting plates (401) are fitted together, and the upper inclined surfaces of the two groups of V-shaped collecting plates (401) are provided with slots, and the slots of the two groups of V-shaped collecting plates (401) are clamped with U-shaped limiting plates (402).

3. A corrugated cardboard slotting and die-cutting machine according to claim 2, characterized in that: The pushing mechanism (5) comprises a fixing plate (502), wherein the fixing plate (502) is mounted on the upper surfaces of the two groups of side plates (2), a threaded hole is provided on the upper surface of the fixing plate (502), a screw rod (501) is connected to the internal thread of the fixing plate (502), a groove is provided on the upper surface of the top plate (302), and the bottom end of the screw rod (501) is inserted into the groove of the top plate (302).

4. The corrugated cardboard slotting and die-cutting machine according to claim 2, characterized in that: The bottom of the inner wall of the slots of the two groups of V-shaped collecting plates (401) are both provided with electric telescopic rods (406), the lower surfaces of the two groups of U-shaped limiting plates (402) are both provided with grooves, and the output ends of the two groups of electric telescopic rods (406) are respectively installed on the top of the inner wall of the grooves of the two groups of U-shaped limiting plates (402).

5. The corrugated cardboard slotting and die-cutting machine according to claim 2, characterized in that: The two groups of material storage mechanisms (6) both include a collection box (601), and the two groups of collection boxes (601) are respectively slidably connected to the inside of the groove of the base (1), and handles (602) are provided on opposite sides of the two groups of collection boxes (601). The positions of the two groups of collection boxes (601) are respectively located at the lower end of the moving path of the two groups of V-shaped collection plates (401).

6. A corrugated cardboard slotting and die-cutting machine according to claim 5, characterized in that: The limiting mechanism (7) comprises a connecting plate (701), the connecting plate (701) being mounted on the bottom of the inner wall of the groove of the base (1), a slot being provided on the front side of the connecting plate (701), a magnetic block (702) being mounted inside the slot of the connecting plate (701), and adjacent sides of the two groups of collecting boxes (601) being respectively adsorbed on the front and rear sides of the magnetic block (702).

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