Environment-friendly equipment production mold

Abstract

The utility model discloses an environmental protection equipment production mould, which mainly comprises a main body structure, a pair of upper mould bases, a pair of lower mould bases, a pair of upper fixing structures, a pair of lower fixing structures, a moving structure and a limiting structure, the main body structure comprises a base, cylinders fixedly connected with four corners of the base, and a top plate fixedly connected with piston ends at the tops of the cylinders; the upper fixing structures are fixedly connected with the top of the base and used for fixing the upper die base, the bottoms of the lower fixing structures are fixedly connected with the top of the base, the lower fixing structures are used for fixing the lower die base, and the moving structures are arranged on the sides, away from each other, of the upper fixing structures and the lower fixing structures correspondingly. And the pair of limiting structures is arranged and is used for limiting the moving structure when the moving structure retreats. The device is easy to operate, the upper die base and the lower die base can be rapidly replaced, and the production efficiency of environment-friendly equipment is not prone to being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a production mold for environmental protection equipment. Background Art

[0002] Environmental protection equipment refers to mechanical products, structures and mechanical processing products for controlling environmental pollution that are manufactured and constructed by production units or construction and installation units and are used to control environmental pollution and improve environmental quality.

[0003] During the production process of the cavity of environmental protection equipment, the mold is an indispensable tool. However, due to the different specifications of the cavity, the upper and lower mold bases often need to be replaced to adapt to different production needs. At present, the fixation of the upper and lower mold bases mainly relies on multiple bolts for fastening, which requires loosening the bolts one by one during the disassembly process. The operation process is quite cumbersome, which seriously restricts the efficiency of mold base replacement, and thus affects the production efficiency of environmental protection equipment. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a production mold for environmental protection equipment, mainly including a main structure, an upper mold base, a lower mold base, an upper fixed structure, a lower fixed structure, a movable structure and a limiting structure, the main structure including a base, a cylinder fixedly connected to the four corners of the base and a top plate fixedly connected to the piston end of the top of the cylinder, the upper mold base is arranged between the top plate and the base, the lower mold base is arranged corresponding to the upper mold base, and the lower mold base is arranged on the top of the base, the upper fixed structure is provided with a pair, and is symmetrically arranged on the left and right sides of the upper mold base, and the top ends of the pair of upper fixed structures are both connected to the top plate The bottom is fixedly connected, and a pair of the upper fixed structures are used to fix the upper mold base. A pair of the lower fixed structures are provided, and are symmetrically arranged on the left and right sides of the lower mold base. The bottoms of the pair of lower fixed structures are fixedly connected to the top of the base, and the pair of lower fixed structures are used to fix the lower mold base. The movable structure is provided with a pair, which are symmetrically arranged on the side away from each other of a pair of upper fixed structures and a pair of lower fixed structures, and are fixedly connected to the upper fixed structure and the lower fixed structure. A pair of limiting structures are provided, and are respectively arranged close to a pair of movable structures, for limiting the movable structure when the movable structure retreats.

[0006] As a preferred solution for the environmental protection equipment production mold of the utility model, the upper mold base is fixedly connected to upper fixing rods on both sides, and a first socket is opened at one end of the upper fixing rod away from the upper mold base, and the upper fixing structure is adapted to be plugged into the first socket.

[0007] As a preferred solution for the environmental protection equipment production mold described in the utility model, wherein: the left and right sides of the lower mold base are fixedly connected with lower fixing rods, and the end of the lower fixing rod away from the lower mold base is provided with a second socket, and the lower fixing structure is adapted to be plugged into the second socket.

[0008] As a preferred solution for the environmental protection equipment production mold described in the utility model, wherein: the upper fixed structure includes a vertical rod fixedly connected to the bottom of the top plate, an upper clamping sleeve fixedly connected to the bottom end of the vertical rod, an upper bracket fixedly connected to the side of the upper clamping sleeve away from the upper mold base, an upper insertion rod slidably connected to the side of the upper bracket away from the upper clamping sleeve, an upper connecting plate fixedly connected to one end of the upper insertion rod away from the upper clamping sleeve, and a first spring fixedly connected between the upper connecting plate and the upper bracket, the first spring movably sleeved on the outside of the upper insertion rod, the upper clamping sleeve is a groove structure with an open front end and a blocked rear end, the upper clamping sleeve is adapted to be plugged in with the upper fixed rod, and the end of the upper insertion rod away from the upper connecting plate is movably inserted into the upper clamping sleeve and adapted to be plugged in with the first socket.

[0009] As a preferred solution for the environmental protection equipment production mold described in the utility model, wherein: the lower fixed structure includes a lower locking sleeve fixedly connected to the upper surface of the base, a lower bracket fixedly connected to the side of the lower locking sleeve away from the lower mold base, a lower insertion rod slidably connected to the side of the lower bracket away from the lower locking sleeve, a lower connecting plate fixedly connected to one end of the lower insertion rod away from the lower locking sleeve, and a second spring fixedly connected between the lower connecting plate and the lower bracket, the second spring movably sleeved on the outside of the lower insertion rod, the lower locking sleeve is a groove structure with an open front end and a closed rear end, the lower locking sleeve is adaptably plugged with the lower fixed rod, and the end of the lower insertion rod away from the lower connecting plate is movably inserted into the lower locking sleeve and adaptably plugged with the second socket.

[0010] As a preferred solution for the environmental protection equipment production mold described in the utility model, wherein: the moving structure includes a moving rod fixedly connected to the lower connecting plate, the moving rod is vertically arranged, and the left and right sides of the moving rod are provided with mutually connected sliding grooves, and a connecting rod slides through the sliding groove, one end of the connecting rod is fixedly connected to the upper connecting plate, and the other end of the connecting rod is fixedly connected to a limiting rod, and the limiting rod is movably fitted with a side of the moving rod away from the upper connecting plate.

[0011] As a preferred solution for the environmental protection equipment production mold described in the utility model, the limiting structure includes a vertical plate fixedly connected to the top of the base, and a screw is fixedly connected to the side of the vertical plate facing the upper mold base. A baffle is spirally sleeved on the screw. After the upper plug rod and the lower plug rod are respectively driven out of the first plug hole and the second plug hole by the moving rod, the baffle can be rotated to press the baffle against the side of the moving rod facing the upper mold base, so as to limit the moving rod.

[0012] Beneficial effects of the utility model:

[0013] The utility model discloses that when replacing the upper die seat and the lower die seat, it is only necessary to pull the moving rod, and the moving rod can simultaneously drive the upper connecting plate and the lower connecting plate to retreat. When the upper connecting plate and the lower connecting plate retreat, they can respectively drive the upper insert rod and the lower insert rod to retreat, so that the upper insert rod and the lower insert rod can be respectively drawn out from the first insertion hole and the second insertion hole at the same time, so that the fixation of the upper die seat and the lower die seat can be simultaneously released. After releasing, by rotating the baffle plate and pressing the baffle plate against one side of the moving rod, the upper insert rod and the lower insert rod can be prevented from resetting under the action of the rebound force of the first spring and the second spring, thereby making it more convenient to disassemble the upper die seat and the lower die seat, and the overall operation is simple, and the upper die seat and the lower die seat can be quickly disassembled, thereby facilitating the replacement of the upper die seat and the lower die seat, and it is not easy to affect the production efficiency of the environmental protection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the upper die base of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the lower die base of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the upper fixing structure of the utility model.

[0019] Figure 5 It is a structural schematic diagram of the lower fixing structure of the utility model.

[0020] Figure 6 It is a structural schematic diagram of the mobile structure of the utility model.

[0021] Figure 7 It is a structural schematic diagram of the limiting structure of the utility model.

[0022] Figure 8 This is a state diagram of the limit structure and the moving structure when the upper die base and the lower die base are disassembled in the utility model.

[0023] In the figure: 100, main structure; 101, base; 102, cylinder; 103, top plate; 200, upper die seat; 201, upper fixed rod; 202, first plug hole; 300, lower die seat; 301, lower fixed rod; 302, second plug hole; 400, upper fixed structure; 401, vertical rod; 402, upper clamping sleeve; 403, upper bracket; 404, upper plug rod; 405, upper connecting plate; 406, first spring; 500, lower fixed structure; 501, lower clamping sleeve; 502, lower bracket; 503, lower plug rod; 504, lower connecting plate; 505, second spring; 600, moving structure; 601, moving rod; 602, slide groove; 603, connecting rod; 604, limiting rod; 700, limiting structure; 701, vertical plate; 702, screw; 703, baffle. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] Example 1

[0029] Reference Figure 1-5, which is the first embodiment of the utility model, provides an environmental protection equipment production mold, mainly including:

[0030] The main structure 100, such as Figure 1 The main structure 100 includes a base 101, a cylinder 102 fixedly connected to the four corners of the base 101 by bolts, and a top plate 103 fixedly connected to the top piston end of the cylinder 102;

[0031] Upper die holder 200, such as Figure 2 The upper die base 200 is disposed between the top plate 103 and the base 101. Upper fixing rods 201 are fixedly connected to the left and right sides of the upper die base 200. A first plug hole 202 is provided at one end of the upper fixing rod 201 away from the upper die base 200.

[0032] Lower die base 300, such as Figure 3 The lower die base 300 is arranged corresponding to the upper die base 200, and the lower die base 300 is arranged on the top of the base 101. The left and right sides of the lower die base 300 are fixedly connected with lower fixing rods 301, and the end of the lower fixing rod 301 away from the lower die base 300 is provided with a second plug hole 302;

[0033] The upper fixing structure 400 is provided with a pair and is symmetrically arranged on the left and right sides of the upper mold base 200. The top ends of the pair of upper fixing structures 400 are fixedly connected to the bottom of the top plate 103, and the pair of upper fixing structures 400 are used to fix the upper mold base 200;

[0034] The lower fixing structure 500 is provided in a pair and is symmetrically arranged on the left and right sides of the lower mold base 300. The bottoms of the pair of lower fixing structures 500 are fixedly connected to the top of the base 101, and the pair of lower fixing structures 500 are used to fix the lower mold base 300.

[0035] Specifically, Figure 4The upper fixed structure 400 includes a vertical rod 401 fixedly connected to the bottom of the top plate 103 by bolts, an upper clamping sleeve 402 fixedly connected to the bottom end of the vertical rod 401 by bolts, an upper bracket 403 fixedly connected to the side of the upper clamping sleeve 402 away from the upper mold base 200, an upper insertion rod 404 slidably connected to the side of the upper bracket 403 away from the upper clamping sleeve 402, an upper connecting plate 405 fixedly connected to one end of the upper insertion rod 404 away from the upper clamping sleeve 402, and a first spring 406 fixedly connected between the upper connecting plate 405 and the upper bracket 403, the first spring 406 is movably sleeved on the outside of the upper insertion rod 404, the upper clamping sleeve 402 is a groove structure with an opening at the front end and a blocked rear end, and the rear end of the upper clamping sleeve 402 is set as a blocking structure. The advantage of this arrangement is that it can be quickly The insertion depth of the upper fixing rod 201 can be quickly positioned, so that the position of the first hole 202 can be quickly positioned, so that the first hole 202 can quickly correspond to the upper insertion rod 404, thereby improving the fixing efficiency of the upper mold base 200, the upper locking sleeve 402 is adapted to be plugged in with the upper fixing rod 201, and the end of the upper insertion rod 404 away from the upper connecting plate 405 is movably inserted into the upper locking sleeve 402 and adapted to be plugged in with the first hole 202. When the upper mold base 200 needs to be replaced, the upper insertion rod 404 is driven backward by the upper connecting plate 405, and the upper insertion rod 404 is pulled out of the first hole 202, and then the upper mold base 200 is pulled forward, so that the upper fixing rod 201 is pulled out from the front end opening of the upper locking sleeve 402, and the disassembly is completed. The overall operation is simple and easy to disassemble.

[0036] Specifically, Figure 5The lower fixed structure 500 includes a lower clamping sleeve 501 fixedly connected to the upper surface of the base 101, a lower bracket 502 fixedly connected to the side of the lower clamping sleeve 501 away from the lower mold base 300, a lower insertion rod 503 slidably connected to the side of the lower bracket 502 away from the lower clamping sleeve 501, a lower connecting plate 504 fixedly connected to one end of the lower insertion rod 503 away from the lower clamping sleeve 501, and a second spring 505 fixedly connected between the lower connecting plate 504 and the lower bracket 502, the second spring 505 is movably sleeved on the outside of the lower insertion rod 503, and the lower clamping sleeve 50 1 is a groove structure with an opening at the front end and a closed rear end. The advantage of setting the rear end of the lower clamping sleeve 501 as a closed structure is that the insertion depth of the lower fixing rod 301 can be quickly positioned, so that the position of the second plug hole 302 can be quickly positioned, so that the second plug hole 302 can quickly correspond to the lower plug hole 503, thereby improving the fixing efficiency of the lower mold base 300. The lower clamping sleeve 501 is adapted to be plugged with the lower fixing rod 301, and the end of the lower plug rod 503 away from the lower connecting plate 504 is movably inserted into the lower clamping sleeve 501 and adapted to be plugged with the second plug hole 302. When the lower mold base 300 needs to be replaced, the lower plug rod 503 is driven backward by the lower connecting plate 504, and the lower plug rod 503 is pulled out of the second plug hole 302, and then the lower mold base 300 is pulled forward, so that the lower fixing rod 301 is pulled out from the opening at the front end of the lower clamping sleeve 501, and the disassembly is completed. The operation is simple and it is convenient to replace the lower mold base 300.

[0037] Example 2

[0038] Reference Figure 6-8 , which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: the mold also includes a moving structure 600 and a limiting structure 700. The moving structure 600 is provided with a pair, which are symmetrically arranged on the side of a pair of upper fixed structures 400 and a pair of lower fixed structures 500 away from each other, and are fixedly connected to the upper fixed structure 400 and the lower fixed structure 500. The limiting structure 700 is provided with a pair, and is respectively arranged close to the pair of moving structures 600, for limiting the moving structure 600 when the moving structure 600 retreats.

[0039] like Figure 6The mobile structure 600 includes a mobile rod 601 fixedly connected to the lower connecting plate 504, the mobile rod 601 is vertically arranged, and the left and right sides of the mobile rod 601 are provided with mutually connected slide grooves 602, and a connecting rod 603 is slidably penetrated in the slide groove 602, and one end of the connecting rod 603 is fixedly connected to the upper connecting plate 405. The purpose of this arrangement is that the other end of the connecting rod 603 is fixedly connected to the limiting rod 604, and the limiting rod 604 is movably fitted with a side of the mobile rod 601 away from the upper connecting plate 405, wherein the upper connecting plate 405 is slidably connected to the slide groove 602 through the connecting rod 603, so that the cylinder 10 2 can drive the upper die base 200 to move up and down. The purpose of setting the limit rod 604 is that when the moving rod 601 is pulled to move, the connecting rod 603 and the upper connecting plate 405 fixedly connected to the connecting rod 603 can be driven to move through the limit rod 604. In addition, when the moving rod 601 is pulled, the lower connecting plate 504 can be driven to move at the same time, so that the upper fixed structure 400 and the lower fixed structure 500 on the same side can be disassembled at the same time, which can further improve the disassembly efficiency, thereby further improving the replacement efficiency of the upper die base 200 and the lower die base 300, and thus it is not easy to affect the production efficiency of the environmental protection equipment.

[0040] like Figure 7-8 The limiting structure 700 includes a vertical plate 701 fixedly connected to the top of the base 101, and a screw 702 is fixedly connected to the side of the vertical plate 701 facing the upper mold base 200. A baffle 703 is spirally sleeved on the screw 702. After the upper plug rod 404 and the lower plug rod 503 are driven out of the first plug hole 202 and the second plug hole 302 respectively by the moving rod 601, the baffle 703 is rotated to press the baffle 703 against the side of the moving rod 601 facing the upper mold base 200 (such as Figure 8 ), which is used to limit the moving rod 601. The advantage of such a setting is that when pulling the lower mold base 300 and the upper mold base 200 forward, there is no need to manually hold the moving rod 601 to prevent the upper plug rod 404 and the lower plug rod 503 from resetting, which saves manpower and is more convenient for replacing the upper mold base 200 and the lower mold base 300. When reinstalling the upper mold base 200 and the lower mold base 300, it is only necessary to rotate the baffle 703 to separate it from the moving rod 601 to release the limiting effect on the moving rod 601, and then the upper plug rod 404 and the lower plug rod 503 are moved and reset under the rebound force of the first spring 406 and the second spring 505 respectively, and the upper mold base 200 and the lower mold base 300 can be fixed again through the plug-in effect of the upper plug rod 404 and the first plug hole 202, and the lower plug rod 503 and the second plug hole 302. The operation is simple and the upper mold base 200 and the lower mold base 300 can be quickly fixed.

[0041] The remaining structures are the same as those of Example 1.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A production mold for environmental protection equipment, characterized in that: include: A main structure (100), the main structure (100) comprising a base (101), a cylinder (102) fixedly connected to the four corners of the base (101), and a top plate (103) fixedly connected to the top piston end of the cylinder (102); An upper die base (200), wherein the upper die base (200) is arranged between the top plate (103) and the base (101); A lower die base (300), wherein the lower die base (300) is arranged corresponding to the upper die base (200), and the lower die base (300) is arranged on the top of the base (101); An upper fixing structure (400), wherein the upper fixing structure (400) is provided in pair and is symmetrically arranged on the left and right sides of the upper die base (200), the top ends of the pair of upper fixing structures (400) are fixedly connected to the bottom of the top plate (103), and the pair of upper fixing structures (400) are used to fix the upper die base (200); A pair of lower fixing structures (500) are provided and symmetrically arranged on the left and right sides of the lower mold base (300); the bottoms of the pair of lower fixing structures (500) are fixedly connected to the top of the base (101); and the pair of lower fixing structures (500) are used to fix the lower mold base (300); A pair of movable structures (600) are provided, the movable structures (600) being symmetrically arranged on one side of a pair of upper fixed structures (400) and a pair of lower fixed structures (500) that are away from each other, and being fixedly connected to the upper fixed structures (400) and the lower fixed structures (500); A limiting structure (700), wherein a pair of the limiting structures (700) are provided and are respectively arranged close to a pair of moving structures (600), and are used to limit the moving structure (600) when the moving structure (600) moves backward.

2. The environmental protection equipment production mold according to claim 1, characterized in that: Upper fixing rods (201) are fixedly connected to the left and right sides of the upper die base (200); a first plug hole (202) is provided at one end of the upper fixing rod (201) away from the upper die base (200); and the upper fixing structure (400) is adapted to be plugged into the first plug hole (202).

3. The environmental protection equipment production mold according to claim 1, characterized in that: The left and right sides of the lower die base (300) are fixedly connected with lower fixing rods (301), one end of the lower fixing rod (301) away from the lower die base (300) is provided with a second plug hole (302), and the lower fixing structure (500) is adapted to be plugged into the second plug hole (302).

4. The environmental protection equipment production mold according to claim 1, characterized in that: The upper fixed structure (400) comprises a vertical rod (401) fixedly connected to the bottom of the top plate (103), an upper clamping sleeve (402) fixedly connected to the bottom end of the vertical rod (401), an upper bracket (403) fixedly connected to a side of the upper clamping sleeve (402) away from the upper mold base (200), an upper insertion rod (404) slidably connected to a side of the upper bracket (403) away from the upper clamping sleeve (402), and an upper connecting plate (405) fixedly connected to an end of the upper insertion rod (404) away from the upper clamping sleeve (402). and a first spring (406) fixedly connected between the upper connecting plate (405) and the upper bracket (403); the first spring (406) is movably sleeved on the outside of the upper plug rod (404); the upper snap-fit ​​sleeve (402) is a groove structure with an open front end and a closed rear end; the upper snap-fit ​​sleeve (402) is adapted to be plugged into the upper fixed rod (201); one end of the upper plug rod (404) away from the upper connecting plate (405) is movably inserted into the upper snap-fit ​​sleeve (402) and adapted to be plugged into the first plug hole (202).

5. The environmental protection equipment production mold according to claim 1, characterized in that: The lower fixed structure (500) comprises a lower engaging sleeve (501) fixedly connected to the upper surface of the base (101), a lower bracket (502) fixedly connected to a side of the lower engaging sleeve (501) away from the lower die seat (300), a lower inserting rod (503) slidably connected to a side of the lower bracket (502) away from the lower engaging sleeve (501), a lower connecting plate (504) fixedly connected to an end of the lower inserting rod (503) away from the lower engaging sleeve (501), and a lower connecting plate (504) fixedly connected to the lower connecting plate. (504) and a second spring (505) between the lower bracket (502), the second spring (505) being movably sleeved on the outside of the lower plug rod (503), the lower snap-fit ​​sleeve (501) being a groove structure with an open front end and a closed rear end, the lower snap-fit ​​sleeve (501) being adapted to be plugged with the lower fixed rod (301), and one end of the lower plug rod (503) away from the lower connecting plate (504) being movably inserted into the lower snap-fit ​​sleeve (501) and being adapted to be plugged with the second plug hole (302).

6. The environmental protection equipment production mold according to claim 1, characterized in that: The movable structure (600) includes a movable rod (601) fixedly connected to a lower connecting plate (504), the movable rod (601) being vertically arranged, and the movable rod (601) is provided with mutually connected sliding grooves (602) on the left and right sides, a connecting rod (603) slidingly passes through the sliding groove (602), one end of the connecting rod (603) is fixedly connected to an upper connecting plate (405), and the other end of the connecting rod (603) is fixedly connected to a limiting rod (604), and the limiting rod (604) is movably fitted with a side of the movable rod (601) away from the upper connecting plate (405).

7. The environmental protection equipment production mold according to claim 1, characterized in that: The limiting structure (700) comprises a vertical plate (701) fixedly connected to the top of the base (101); a screw rod (702) is fixedly connected to the side of the vertical plate (701) facing the upper die seat (200); a baffle plate (703) is spirally sleeved on the screw rod (702); after the upper insertion rod (404) and the lower insertion rod (503) are driven by the moving rod (601) to respectively escape from the first insertion hole (202) and the second insertion hole (302), the baffle plate (703) is rotated to press the baffle plate (703) against the side of the moving rod (601) facing the upper die seat (200), so as to limit the moving rod (601).

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