Molding die for switching shell of mower

Abstract

The utility model discloses a forming die for a switching shell of a mower, which comprises a front die frame and a rear die frame, a rear die core is fixed on the rear die frame, a front die core is arranged on the front die frame in a matching manner, and the front die core and the rear die core are spliced into a cavity; a first shaping block is arranged in the middle of the rear mold core, a first shaping column obliquely inserted into the cavity is arranged below the rear mold core, and a first air cylinder drives the first shaping column to enter or leave the cavity; a second shaping column is arranged in the middle of the front mold core and abuts against the first shaping block. The inclined first shaping column is arranged on the rear mold core and used for forming the hollow connecting arm on the switching shell of the mower, the first air cylinder and the first sliding groove with the same inclination angle are arranged and used for driving the first shaping column to enter and exit from the cavity in an inclined state, rapid demolding is facilitated, and the die casting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mower shell molding, in particular to a molding die for a lawn mower adapter shell. Background Art

[0002] Die casting is a metal casting process characterized by applying high pressure to molten metal within a mold cavity. The mold is typically machined from a stronger alloy, and the process is somewhat similar to injection molding. Die casting is particularly well-suited for producing large quantities of small and medium-sized castings, making it the most widely used casting process.

[0003] The lawn mower adapter shell generally includes a main shell and a connecting arm. The connecting arm is a hollow structure and is inclined relative to the main shell. Therefore, after the lawn mower adapter shell is die-cast, the inclined connecting arm is difficult to demold, resulting in low die-casting efficiency. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a molding die for a lawn mower adapter shell, which can be quickly demoulded and improve the die-casting efficiency.

[0005] To this end, the technical solution of the utility model is: a forming mold for a lawn mower adapter shell, comprising a front mold frame and a rear mold frame, a rear mold core is fixed on the rear mold frame, and a front mold core is provided on the front mold frame, and the front mold core and the rear mold core are assembled into a mold cavity; a first shaping block is provided in the middle of the rear mold core, and a first shaping column is provided below the rear mold core, which is obliquely inserted into the mold cavity, and a first cylinder drives the first shaping column to enter or leave the mold cavity; a second shaping column is provided in the middle of the front mold core, and the second shaping column abuts against the first shaping block.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: an inclined slide is provided under the rear mold frame, the first slider is slidably installed in the slide, the first shaping column is installed at the upper end of the first slider, and the first cylinder is installed at the bottom end of the slide, and is in the same inclined position as the slide.

[0007] On the basis of the above solution and as a preferred solution of the above solution: the inclination angle of the first shaping column is consistent with the inclination angle of the connecting arm on the lawn mower adapter housing.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: a gate sleeve is provided on the front mold frame, a boss adapted to the bottom of the gate sleeve is provided on the rear mold frame, a feed runner is provided on the side of the boss, and the feed runner connects the gate sleeve and the cavity.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the front mold frame is provided with a guide column, and the rear mold frame is provided with a guide column sleeve. When the front mold frame and the rear mold frame are spliced together, the guide column moves along the guide column sleeve.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] An inclined first shaping column is provided on the rear mold core to form a hollow connecting arm on the lawn mower adapter shell. A first cylinder and a first slide groove with the same inclination angle are provided to drive the first shaping column to maintain an inclined state in and out of the mold cavity, thereby facilitating rapid demoulding and improving die-casting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a structural diagram of the rear mold frame of the utility model;

[0014] Figure 3 This is a schematic structural diagram of the front mold frame of the utility model;

[0015] Figure 4 This is a structural diagram of the lawn mower adapter housing.

[0016] Marked in the figure are: front mold frame 1, front mold core 11, second shaping column 13, guide column 12, rear mold frame 2, rear mold core 21, guide column sleeve 22, first shaping block 23, first shaping column 24, first slider 25, slide 26, first cylinder 27, gate sleeve 3, boss 31, inlet runner 32, lawn mower adapter shell 4, main shell 41, connecting arm 42. DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which 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 direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0019] See the accompanying drawings. The molding die for the lawn mower adapter housing described in this embodiment includes a front mold frame 1 and a rear mold frame 2. A rear mold core 21 is fixed to the rear mold frame 2. The front mold frame 1 is equipped with a front mold core 11. The front mold core 11 and the rear mold core 21 are assembled into a cavity. Guide posts 12 are provided on the front mold frame 1, and guide post sleeves 22 are provided on the rear mold frame 2. When the front mold frame 1 and the rear mold frame 2 are assembled, the guide posts 12 move along the guide post sleeves 22, ensuring that the front mold core 11 and the rear mold core 21 can be accurately assembled into the cavity, thereby ensuring die-casting quality.

[0020] A first shaping block 23 is provided in the middle of the rear mold core 21, and a second shaping column 13 is provided in the middle of the front mold core 11. The second shaping column 13 abuts against the first shaping block 23 to form a through hole in the middle of the main housing 4 of the lawn mower adapter housing.

[0021] A first shaping column 24, which is inserted obliquely into the mold cavity, is provided below the rear mold core 21. The first shaping column 24 is mounted on the upper end of a first slider 25. An inclined chute 26 is provided below the rear mold frame 2. The first slider 25 is slidably mounted within the chute 26, and a first cylinder 27 is mounted at the bottom of the chute 26, in the same oblique orientation as the chute 26. The inclination angles of the first shaping column 24, chute 26, and first cylinder 27 are all consistent with the inclination angle of the connecting arm 42 on the lawn mower adapter housing 4. The first cylinder 27 can drive the first slider 25 to move along the chute 26, allowing the first shaping column 24 to enter or exit the mold cavity, thereby die-casting the hollow adapter arm 42. The first cylinder and first chute, which are provided with the same inclination angle, are used to drive the first shaping column to maintain an inclined state in and out of the mold cavity, facilitating rapid demolding and improving die-casting efficiency.

[0022] The front mold frame 1 is provided with a sprue bushing 3, and the rear mold frame 2 is provided with a boss 31 that fits with the bottom of the sprue bushing 3. A sprue runner 32 is provided on the side of the boss 31, connecting the sprue bushing 3 with the mold cavity. After the front mold frame 1 and the rear mold frame 2 are assembled, the sprue bushing 3 is fitted over the boss 31. Molten metal enters the sprue bushing 3, flows along the boss 31 into the runner 32, and then into the mold cavity, performing the die-casting operation.

[0023] The lawn mower adapter shell 4 of this embodiment includes a main shell 41 and an inclined hollow connecting arm 42. The main shell is die-cast by a cavity formed by the splicing of the rear mold core and the front mold core. The through hole in the middle of the main shell is formed by the second shaping column on the front mold core, and the arc-shaped main shell is formed by the first shaping block of the rear mold core. The first shaping column is inserted into the cavity to form a hollow structure of the connecting plate.

[0024] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A molding die for a lawn mower adapter housing, comprising a front mold frame and a rear mold frame, wherein a rear mold core is fixed to the rear mold frame, and a front mold core is provided on the front mold frame, wherein the front mold core and the rear mold core are combined into a mold cavity; characterized in that: A first shaping block is provided in the middle of the rear mold core, a first shaping column is provided below the rear mold core and is obliquely inserted into the mold cavity, and the first cylinder drives the first shaping column to enter or leave the mold cavity; a second shaping column is provided in the middle of the front mold core and is in contact with the first shaping block.

2. The molding die for the lawn mower adapter housing according to claim 1, characterized in that: An inclined chute is provided below the rear mold frame, the first slider is slidably installed in the chute, the first shaping column is installed at the upper end of the first slider, and the first cylinder is installed at the bottom end of the chute and is in the same inclined position as the chute.

3. The molding die for the lawn mower adapter housing according to claim 1, characterized in that: The inclination angle of the first shaping column is consistent with the inclination angle of the connecting arm on the lawn mower adapter housing.

4. The molding die for the lawn mower adapter housing according to claim 1, characterized in that: The front mold frame is provided with a gate sleeve, the rear mold frame is provided with a boss adapted to the bottom of the gate sleeve, the side of the boss is provided with a pouring channel, and the pouring channel connects the gate sleeve and the cavity.

5. The molding die for the lawn mower adapter housing according to claim 1, characterized in that: The front mold frame is provided with a guide column, and the rear mold frame is provided with a guide column sleeve. When the front mold frame and the rear mold frame are assembled, the guide column moves along the guide column sleeve.

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