Casting mold for liquid filling pump shell of lawn mower

Abstract

The utility model relates to the technical field of casting molds, and discloses a casting mold for a liquid filling pump shell of a lawn mower, which is used for casting and forming the liquid filling pump shell of the lawn mower. The mower liquid filling pump shell comprises a pump shell body and a pump shell body, a first fixing part and a second fixing part are symmetrically arranged on the surface of the pump shell body, a butt joint cavity is formed in the pump shell body, and a through groove is formed in the inner wall of the butt joint cavity. According to the casting mold for the mowing machine liquid filling pump shell, by arranging a boss, a forming ring table and a forming block, a fixed mold frame and a movable mold frame are closed to drive a fixed mold core and a movable mold core to be closed, a first casting station and a second casting station form a casting cavity, casting liquid enters and is injected through a casting pipe, and after the casting liquid enters the casting cavity, the casting liquid is poured into the casting cavity; the sinking groove and the positioning groove are formed through the boss and the forming ring table, the through groove is formed through the forming block, the boss is tightly attached to the forming block during closing, forming of the sinking groove and the through groove is facilitated, cutting is not needed, and machining is convenient.

Description

Technical Field

[0001] This utility model relates to the field of casting mold technology, specifically to a casting mold for the housing of a lawnmower filling pump. Background Technology

[0002] A lawnmower, also known as a lawn mower, lawn trimmer, or lawn mower, is a mechanical tool used for trimming lawns, vegetation, etc. It consists of a cutter head, engine, wheels, walking mechanism, blades, handle, and control unit. The lawnmower's liquid pump is a component used to convert mechanical energy into liquid pressure energy. Its function is to increase the liquid pressure, overcome pipeline resistance, and allow the liquid to be continuously atomized through the spray gun or nozzle and sprayed onto the target object.

[0003] Currently, there are lawnmower filling pump housings including a pump housing body, a docking cavity on the pump housing body, a through groove on the inner wall of the docking cavity, a positioning block on the inner wall of the through groove, a first fixing part and a second fixing part symmetrically arranged on the surface of the pump housing body, and a sink groove and a positioning groove respectively opened on the surface of the pump housing body, and the sink groove and the through groove are connected.

[0004] When processing the liquid filling pump housing of a lawnmower, the groove and positioning groove on the pump housing body need to be formed by cutting, and the cutting groove needs to be connected with the through groove, which is a relatively complicated process. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a casting mold for the housing of a lawnmower filling pump, thus solving the problems mentioned in the background.

[0006] This utility model provides the following technical solution: a casting mold for a lawnmower filling pump housing, comprising: a casting mold for casting the lawnmower filling pump housing;

[0007] The lawnmower filling pump housing includes a pump housing body. The surface of the pump housing body is symmetrically provided with a first fixing part and a second fixing part. The pump housing body is provided with a docking cavity. The inner wall of the docking cavity is provided with a through groove. The inner wall of the through groove is provided with a positioning block. The surface of the pump housing body is respectively provided with a sink groove and a positioning groove, and the sink groove and the through groove are connected.

[0008] The casting mold includes a fixed mold frame and a moving mold frame with relative opening and closing displacement. The fixed mold frame is provided with a fixed mold core, and the moving mold frame is provided with a moving mold core. The fixed mold core is provided with a plurality of first casting stations, and the moving mold core is provided with second casting stations that correspond one-to-one with the first casting stations. A casting cavity for forming the cover is formed between the first casting stations and the second casting stations.

[0009] The first casting station is provided with a first forming groove and a second forming groove for forming the first fixing part and the second fixing part. The inner wall of the first casting station is provided with a boss and a forming ring platform for forming the sink and positioning groove, respectively. The surface of the boss is provided with a first groove for forming the positioning block. The second casting station is provided with a first casting groove and a second casting groove for forming the first fixing part and the second fixing part. The inner wall of the second casting station is provided with a forming column for connecting cavity. The top of the forming column is provided with a forming block for forming through groove. The top of the forming block is provided with a second groove for forming the positioning block.

[0010] A casting block is installed on the top of the moving mold frame, and a casting assembly is installed on the fixed mold frame. One end of the casting assembly extends to the inner wall of the casting cavity, and the casting block is inserted into the inner wall of the casting assembly.

[0011] Preferably, the top of the moving mold frame is provided with a first fixing groove, and the moving mold core is installed on the inner wall of the first fixing groove; the bottom of the fixed mold frame is provided with a second fixing groove, and the fixed mold core is installed on the inner wall of the second fixing groove.

[0012] Preferably, the surface of the casting block is provided with a flow guiding channel, and the top of the moving mold core is provided with multiple flow channels, which are connected to the second casting station.

[0013] Preferably, a lifting plate is installed inside the moving mold frame, a plurality of ejector pins are installed on the top of the lifting plate, the top of the ejector pins extend into the interior of the second casting station, and a support plate is provided at the bottom of the moving mold frame.

[0014] Preferably, guide rods are symmetrically arranged on the top of the support plate, and guide grooves are symmetrically opened on the lifting plate, with the inner wall of the guide grooves slidably connected to the surface of the guide rods.

[0015] Preferably, the casting assembly includes a casting pipe and an mounting ring. The fixed mold frame is provided with a mounting groove. The mounting ring is installed on the inner wall of the mounting groove. The casting pipe is installed on the inner wall of the seal, and one end of the casting pipe passes through the mounting groove and is inserted into the top of the casting block.

[0016] Preferably, a limiting groove is provided at each of the four corners of the top of the moving mold core, and a limiting block is provided at each of the four corners of the bottom of the fixed mold core, with the limiting block inserted into the inner wall of the limiting groove.

[0017] Preferably, positioning tubes are installed at the four corners of the top of the moving mold frame, and positioning rods are installed at the four corners of the fixed mold frame, with the positioning rods inserted into the inner wall of the positioning tubes.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The casting mold for the lawnmower filling pump housing is configured with a boss, a forming ring platform, and a forming block. The fixed mold frame and the moving mold frame close, which in turn drives the fixed mold core and the moving mold core to close. The first casting station and the second casting station form a casting cavity. The casting liquid is injected through the casting pipe. After the casting liquid enters the casting cavity, the sink and positioning groove are formed by the boss and the forming ring platform, and the through groove is formed by the forming block. When closed, the boss and the forming block fit tightly together, which facilitates the formation of the sink and through grooves and is easy to process without cutting.

[0020] 2. The casting mold for the lawnmower filling pump housing is equipped with a limiting groove, a limiting block, a positioning rod, and a positioning tube. When the fixed mold frame and the moving mold frame are closed, the positioning rod is inserted into the inner wall of the positioning tube, which drives the fixed mold core and the moving mold core to close. The limiting block is inserted into the inner wall of the limiting groove, thereby ensuring that the fixed mold frame and the moving mold frame are accurately positioned when they are closed, and that the fixed mold core and the moving mold core are accurately positioned when they are closed, thus avoiding deviations during the casting and molding of the lawnmower filling pump housing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the pump casing structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure at the through groove position of the pump casing body of this utility model;

[0023] Figure 3 This is a schematic diagram of the casting mold structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the exploded structure of the casting mold of this utility model;

[0025] Figure 5 This is an exploded view of the mold frame and mold core of this utility model;

[0026] Figure 6 This is a schematic diagram of the fixed mold core structure of this utility model;

[0027] Figure 7 This is an exploded view of the moving mold frame and moving mold core of this utility model;

[0028] Figure 8 This is a schematic diagram of the moving mold core structure of this utility model;

[0029] Figure 9 This is a schematic diagram of the casting component structure of this utility model.

[0030] In the diagram: 101. Pump housing body; 102. First fixing part; 103. Second fixing part; 104. Connecting cavity; 105. Through groove; 106. Positioning block; 107. Countersunk groove; 108. Positioning groove; 2. Fixed mold frame; 3. Moving mold frame; 4. Fixed mold core; 5. Moving mold core; 6. First casting station; 7. Second casting station; 81. First forming groove; 82. Second forming groove; 9. Boss; 10. Forming ring platform; 11. First groove; 121. First casting 122. Second casting groove; 13. Molding column; 14. Molding block; 15. Second groove; 16. Casting block; 17. Casting assembly; 171. Casting pipe; 172. Mounting ring; 18. First fixing groove; 19. Second fixing groove; 20. Guide channel; 21. Positioning rod; 22. Diversion channel; 23. Lifting plate; 24. Ejector pin; 25. Support plate; 26. Guide rod; 27. Guide groove; 28. Limiting groove; 29. ​​Limiting block; 30. Positioning tube. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-9 The casting mold for the housing of a lawnmower filling pump includes: a casting mold for casting the housing of a lawnmower filling pump;

[0033] Please see Figure 3-8 The lawnmower filling pump housing includes a pump housing body 101. The pump housing body 101 has a first fixing part 102 and a second fixing part 103 symmetrically arranged on its surface. The pump housing body 101 has a docking cavity 104. The inner wall of the docking cavity 104 has a through groove 105. The inner wall of the through groove 105 has a positioning block 106. The surface of the pump housing body 101 has a sink groove 107 and a positioning groove 108 respectively, and the sink groove 107 is connected to the through groove 105.

[0034] The casting mold includes a fixed mold frame 2 and a moving mold frame 3 with relative opening and closing displacement. The fixed mold frame 2 is provided with a fixed mold core 4, and the moving mold frame 3 is provided with a moving mold core 5. The fixed mold core 4 is provided with multiple first casting stations 6, and the moving mold core 5 is provided with second casting stations 7 that correspond one-to-one with the first casting stations 6. A casting cavity for forming the cover is formed between the first casting stations 6 and the second casting stations 7.

[0035] Please see Figure 6 and Figure 8The first casting station 6 is provided with a first forming groove 81 and a second forming groove 82 for forming the first fixing part 102 and the second fixing part 103. The inner wall of the first casting station 6 is provided with a boss 9 and a forming ring platform 10 for forming the sink 107 and the positioning groove 108, respectively. The surface of the boss 9 is provided with a first groove 11 for forming the positioning block 106. The second casting station 7 is provided with a first casting groove 121 and a second casting groove 122 for forming the first fixing part 102 and the second fixing part 103. The inner wall of the second casting station 7 is provided with a forming column 13 for connecting cavity 104. The top of the forming column 13 is provided with a forming block 14 for forming through groove 105. The top of the forming block 14 is provided with a second groove 15 for forming the positioning block 106.

[0036] Please see Figure 4 and Figure 9 A casting block 16 is installed on the top of the moving mold frame 3, and a casting assembly 17 is installed on the fixed mold frame 2. One end of the casting assembly 17 extends to the inner wall of the casting cavity. The casting block 16 is inserted into the inner wall of the casting assembly 17. The casting assembly 17 includes a casting pipe 171 and a mounting ring 172. The fixed mold frame 2 is provided with a mounting groove. The mounting ring 172 is installed on the inner wall of the mounting groove. The casting pipe 171 is installed on the inner wall of the seal, and one end of the casting pipe 171 passes through the mounting groove and is inserted into the top of the casting block 16.

[0037] The top of the moving mold frame 3 is provided with a first fixing groove 18, and the moving mold core 5 is installed on the inner wall of the first fixing groove 18. The bottom of the fixed mold frame 2 is provided with a second fixing groove 19, and the fixed mold core 4 is installed on the inner wall of the second fixing groove 19. The surface of the casting block 16 is provided with a flow guiding channel 20, and the top of the moving mold core 5 is provided with multiple flow channels 22, which are connected to the second casting station 7.

[0038] An ejector plate 23 is installed inside the moving mold frame 3. Multiple ejector pins 24 are installed on the top of the ejector plate 23. The top of the ejector pins 24 extends into the interior of the second casting station 7. A support plate 25 is provided at the bottom of the moving mold frame 3. Guide rods 26 are symmetrically arranged on the top of the support plate 25. Guide grooves 27 are symmetrically opened on the ejector plate 23. The inner wall of the guide groove 27 is slidably connected to the surface of the guide rod 26. When the ejector plate 23 moves, it is guided by the guide rods 26, so that the ejector plate 23 rises smoothly and drives the ejector pins 24 to rise smoothly. After the lawnmower filling pump housing is cooled and formed, the fixed mold frame 2 and the moving mold frame 3 are opened. The external lifting device pushes the ejector plate 23 to move, and the ejector plate 23 pushes the ejector pins 24 to move, pushing the cover out from the second casting station 7 for easy demolding.

[0039] Limiting grooves 28 are provided at the four corners of the top of the moving mold core 5, and limiting blocks 29 are provided at the four corners of the bottom of the fixed mold core 4. The limiting blocks 29 are inserted into the inner wall of the limiting grooves 28. Positioning tubes 30 are installed at the four corners of the top of the moving mold frame 3, and positioning rods 21 are installed at the four corners of the fixed mold frame 2. The positioning rods 21 are inserted into the inner wall of the positioning tubes 30. When the fixed mold frame 2 and the moving mold frame 3 are closed, the positioning rods 21 are inserted into the inner wall of the positioning tubes 30, which drives the fixed mold core 4 and the moving mold core 5 to close. The limiting blocks 29 are inserted into the inner wall of the limiting grooves 28, thereby ensuring that the fixed mold frame 2 and the moving mold frame 3 are closed and the fixed mold core 4 and the moving mold core 5 are closed accurately, avoiding deviations during the casting of the lawnmower filling pump housing.

[0040] When the fixed mold frame 2 and the moving mold frame 3 close, they cause the fixed mold core 4 and the moving mold core 5 to close as well. After closing, the first casting station 6 and the second casting station 7 form a casting cavity. The casting block 16 is connected to the casting pipe 171. The casting equipment is connected to the casting mold through the casting pipe 171, and the casting liquid is injected through the casting pipe 171. The casting liquid is guided along the guide channel 20 to the branch channel 22, and then guided to the casting cavity through the branch channel 22. The branch channel 22 is connected to the first casting station 6 and the second casting station 7. The casting liquid enters the casting cavity for casting and forming. After the casting liquid enters the casting cavity, it flows through... The first forming groove 81 and the second forming groove 82 are respectively connected to the first casting groove 121 and the second casting groove 122 to form the first fixing part 102 and the second fixing part 103. The boss 9 and the forming ring platform 10 form the sink groove 107 and the positioning groove 108. The forming column 13 forms the docking cavity 104. The forming block 14 forms the through groove 105. The first groove 11 and the second groove 15 are connected to form the positioning block 106. When closed, the boss 9 and the forming block 14 fit tightly together, which facilitates the forming of the sink groove 107 and the through groove 105. It is easy to process without cutting.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casting mold for the housing of a lawnmower filling pump, characterized in that, include: Casting molds used for casting the housing of lawnmower filling pumps; The lawnmower filling pump housing includes a pump housing body (101). The pump housing body (101) has a first fixing part (102) and a second fixing part (103) symmetrically arranged on its surface. The pump housing body (101) has a docking cavity (104). The inner wall of the docking cavity (104) has a through groove (105). The inner wall of the through groove (105) has a positioning block (106). The surface of the pump housing body (101) has a sink groove (107) and a positioning groove (108) respectively, and the sink groove (107) is connected to the through groove (105). The casting mold includes a fixed mold frame (2) and a moving mold frame (3) with relative opening and closing displacement. The fixed mold frame (2) is provided with a fixed mold core (4), and the moving mold frame (3) is provided with a moving mold core (5). The fixed mold core (4) is provided with a plurality of first casting stations (6), and the moving mold core (5) is provided with second casting stations (7) that correspond one-to-one with the first casting stations (6). A casting cavity for forming the cover is formed between the first casting stations (6) and the second casting stations (7). The first casting station (6) is provided with a first forming groove (81) and a second forming groove (82) for forming the first fixing part (102) and the second fixing part (103). The inner wall of the first casting station (6) is provided with a boss (9) and a forming ring platform (10) for forming the sink (107) and the positioning groove (108), respectively. The surface of the boss (9) is provided with a first groove (11) for forming the positioning block (106). The second casting station (7) is provided with a first casting groove (121) and a second casting groove (122) for forming the first fixing part (102) and the second fixing part (103). The inner wall of the second casting station (7) is provided with a forming column (13) for forming the docking cavity (104). The top of the forming column (13) is provided with a forming block (14) for forming the through groove (105). The top of the forming block (14) is provided with a second groove (15) for forming the positioning block (106). The top of the moving mold frame (3) is equipped with a casting block (16), and the fixed mold frame (2) is equipped with a casting assembly (17), with one end of the casting assembly (17) extending to the inner wall of the casting cavity, and the casting block (16) being inserted into the inner wall of the casting assembly (17).

2. The casting mold for the lawnmower filling pump housing according to claim 1, characterized in that, The top of the moving mold frame (3) is provided with a first fixing groove (18), and the moving mold core (5) is installed on the inner wall of the first fixing groove (18). The bottom of the fixed mold frame (2) is provided with a second fixing groove (19), and the fixed mold core (4) is installed on the inner wall of the second fixing groove (19).

3. The casting mold for the lawnmower filling pump housing according to claim 1, characterized in that, The surface of the casting block (16) is provided with a flow channel (20), and the top of the moving mold core (5) has multiple flow channels (22), which are connected to the second casting station (7).

4. The casting mold for the lawnmower filling pump housing according to claim 1, characterized in that, The moving mold frame (3) is equipped with a lifting plate (23), and a plurality of ejector pins (24) are installed on the top of the lifting plate (23). The top of the ejector pins (24) extends into the interior of the second casting station (7). A support plate (25) is provided at the bottom of the moving mold frame (3).

5. The casting mold for the lawnmower filling pump housing according to claim 4, characterized in that, The top of the support plate (25) is symmetrically provided with guide rods (26), and the lifting plate (23) is symmetrically provided with guide grooves (27). The inner wall of the guide groove (27) is slidably connected to the surface of the guide rod (26).

6. The casting mold for the lawnmower filling pump housing according to claim 1, characterized in that, The casting assembly (17) includes a casting pipe (171) and a mounting ring (172). The fixed mold frame (2) is provided with a mounting groove. The mounting ring (172) is installed on the inner wall of the mounting groove. The casting pipe (171) is installed on the inner wall of the seal, and one end of the casting pipe (171) passes through the mounting groove and is inserted into the top of the casting block (16).

7. The casting mold for the lawnmower filling pump housing according to claim 1, characterized in that, Limiting grooves (28) are provided at the four corners of the top of the moving mold core (5), and limiting blocks (29) are provided at the four corners of the bottom of the fixed mold core (4). The limiting blocks (29) are inserted into the inner wall of the limiting grooves (28).

8. The casting mold for the lawnmower filling pump housing according to claim 7, characterized in that, Positioning tubes (30) are installed at the four corners of the top of the moving mold frame (3), and positioning rods (21) are installed at the four corners of the fixed mold frame (2). The positioning rods (21) are inserted into the inner wall of the positioning tubes (30).

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