Sand mold machine

Abstract

The utility model provides a sand molding machine, which relates to the technical field of sand molding machines and comprises a sand molding machine body. The sand molding machine body is provided with a sand molding machine shell in the vertical direction, a sand box bearing plate in the left-right direction is installed at the bottom of the front portion of the sand molding machine shell through bolts, four stepped holes penetrating vertically are formed in the center of the end face of the top of the sand box bearing plate in an annular array mode, and placing blind holes are formed in the end face of the top of the sand box bearing plate in an array mode. A rolling contact ball is placed in a placement blind hole of the sand box bearing plate, and a cross groove is formed in the middle of the top end face of the sand box bearing plate, so that the rolling contact ball is conveniently placed in the sand box bearing plate to be in rolling contact with the sand box, and the pushing friction resistance of the sand box is conveniently reduced through rolling contact; the utility model relates to a sand mold box, which solves the problems that the friction resistance is larger when the sand mold box is pushed due to the fact that a sand mold machine is in surface contact with the sand mold box, and rolling contact measures are inconvenient to add on the sand mold machine for rolling contact with the sand mold box to reduce the resistance.

Description

Technical Field

[0001] The utility model belongs to the technical field of sand mould machines, in particular to a sand mould machine. Background Art

[0002] Sand mold casting requires placing a finished part model or a wooden model in the sand, then filling the area around the pattern with sand and compacting it. After the pattern is taken out of the box, the sand forms a casting mold. Sand mold compacting tools are a tool commonly used in the casting process. Their main function is to compact the casting sand so that it can maintain a certain shape during pouring. Sand mold compacting tools are also called sand presses, sand pressing machines, and sand mold machines.

[0003] Based on the above, the inventors found that the existing sand mold machine has the following shortcomings:

[0004] 1. The sand mold machine and the sand mold box are in surface contact, which leads to large friction resistance when the sand mold box is pushed. It is not convenient to add rolling contact measures to the sand mold machine to reduce resistance by rolling contact with the sand mold box.

[0005] 2. The sand mold machine cannot keep the sand mold box in the middle position all the time, which easily affects the compaction effect of the sand mold box. It is not convenient to add centering positioning measures to the sand mold machine to keep the sand mold box in the middle position all the time. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a sand mold machine to solve the problems that the existing sand mold machine and the sand mold box are in surface contact, resulting in large friction resistance when the sand mold box is pushed, and it is inconvenient to add rolling contact measures to the sand mold machine to reduce resistance through rolling contact with the sand mold box; the sand mold machine cannot keep the sand mold box in the middle position all the time, which easily affects the compaction effect of the sand mold box, and it is inconvenient to add centering positioning measures to the sand mold machine to keep the sand mold box in the middle position all the time.

[0007] The purpose and effect of the sand mold machine of this utility model are achieved by the following specific technical means:

[0008] A sand mold machine comprises a sand mold machine body; the sand mold machine body is provided with a sand mold machine shell in the up and down directions, a sand box bearing plate in the left and right directions is installed with bolts at the front bottom of the sand mold machine shell, four stepped holes penetrating up and down are opened in the center annular array of the top end surface of the sand box bearing plate, a placement blind hole is arranged in the top end surface array of the sand box bearing plate, rolling contact balls are placed inside the placement blind holes of the sand box bearing plate, a cross groove is opened in the middle of the top end surface of the sand box bearing plate, bearing holes penetrating front and back are opened at the lower parts of the front and rear ends of the cross groove of the sand box bearing plate, and fixing holes penetrating left and right are opened at the upper parts of the left and right ends of the cross groove of the sand box bearing plate.

[0009] Furthermore, positioning movable plates in the up-and-down directions are installed on the outer circumferences of the left and right ends of the positioning rotating rod, and a threaded hole penetrating left and right is opened in the middle of the positioning movable plate.

[0010] Furthermore, the left and right end surfaces of the positioning and rotating rod are both provided with fixing columns, and the outer end surface of the fixing column of the positioning and rotating rod is provided with a regular hexagonal prism.

[0011] Furthermore, left and right positioning rotating rods are installed between the fixing holes of the sand box bearing plate through bearings, and threads with opposite rotation directions are provided on the outer circumferences of the left and right sides of the positioning rotating rods.

[0012] Furthermore, a pull-out movable plate in the up-and-down direction is installed on the outer circumference of the rear end of the pull-out rotating rod through a thread, and a threaded hole penetrating front to back is opened at the lower end of the pull-out movable plate.

[0013] Furthermore, the front and rear end surfaces of the pull-out rotating rod are both provided with fixing columns, and the front end of the pull-out rotating rod is provided with a regular hexagonal prism.

[0014] Furthermore, a pull-out rotating rod in the front-to-back direction is installed between the bearing holes of the sand box bearing plate through bearings, and a thread is provided on the rear outer circumference of the pull-out rotating rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The rolling contact ball is conveniently placed inside the sand box bearing plate to roll in contact with the sand box, so that the pushing friction resistance of the sand box can be reduced through rolling contact. This solves the problem that the sand mold machine and the sand box are in surface contact, resulting in large friction resistance when the sand box is pushed, and it is inconvenient to add rolling contact measures to the sand mold machine to reduce resistance through rolling contact with the sand box.

[0017] The convenient positioning rotating rod is installed on the sand box bearing plate through a bearing for rotation. The convenient positioning rotating rod rotates and engages with the positioning movable plate thread, so that the positioning movable plate moves synchronously inward and outward to center the sand mold box, which solves the problem that the sand mold machine cannot always keep the sand mold box in the middle position, which easily affects the compaction effect of the sand mold box and is inconvenient to add centering positioning measures to the sand mold machine to keep the sand mold box always in the middle position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main structural schematic diagram of the utility model.

[0019] Figure 2 It is a top view schematic diagram of the sand box bearing plate of the utility model.

[0020] Figure 3 It is a cross-sectional schematic diagram of the utility model when the rotating rod is pulled out.

[0021] Figure 4 It is a cross-sectional schematic diagram of the positioning rotating rod of the utility model.

[0022] Figure 5 It is a schematic diagram of disassembling components on a sand box bearing plate of the utility model.

[0023] Figure 6 It is a schematic diagram of the positions of pulling out the rotating rod and positioning the rotating rod of the utility model.

[0024] In the figure: 1. Sand mold machine body; 2. Sand mold machine shell; 3. Sand box bearing plate; 4. Rolling contact ball; 5. Pull out rotating rod; 6. Pull out moving plate; 7. Positioning rotating rod; 8. Positioning moving plate. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0026] Embodiment 1:

[0027] As attached Figure 1 To Attachment Figure 6 As shown:

[0028] The utility model provides a sand mold machine, comprising a sand mold machine body 1; the sand mold machine body 1 is provided with a sand mold machine shell 2 in the up and down directions, which is convenient for carrying various components, and a sand box bearing plate 3 in the left and right directions is installed at the front bottom of the sand mold machine shell 2 by bolts, which is convenient for carrying the sand mold box, and the center ring array of the top end surface of the sand box bearing plate 3 is provided with four stepped holes that penetrate up and down, which is convenient for installation by bolts, and the top end surface array of the sand box bearing plate 3 is provided with a placement blind hole, which is convenient for a rolling contact ball 4 to be placed inside, and a rolling contact ball 4 is placed inside the placement blind hole of the sand box bearing plate 3, which is convenient for the rolling contact ball 4 to roll and roll with the sand mold box, and a cross groove is provided in the middle of the top end surface of the sand box bearing plate 3, which is convenient for pulling out a rotating rod 5 and a positioning rotating rod 7 to be placed inside, and the lower parts of the front and rear ends of the cross groove of the sand box bearing plate 3 are provided with bearing holes that penetrate front and back, which is convenient for pulling out the rotating rod 5 to be installed by bearings, and the upper parts of the left and right ends of the cross groove of the sand box bearing plate 3 are provided with fixing holes that penetrate left and right, which is convenient for the positioning rotating rod 7 to be installed by bearings.

[0029] Among them, a pull-out rotating rod 5 in the front and rear directions is installed between the bearing holes of the sand box carrying plate 3 through bearings, which is convenient for rotation. A thread is opened on the outer circumference of the rear of the pull-out rotating rod 5, which is convenient for the pull-out movable plate 6 to be installed through the thread. Fixed columns are provided on the front and rear end surfaces of the pull-out rotating rod 5, which is convenient for installation through bearings. A regular hexagonal prism is provided at the front end of the pull-out rotating rod 5, which is convenient for rotation through tools. The pull-out movable plate 6 in the upper and lower directions is installed through threads on the outer circumference of the rear end of the pull-out rotating rod 5, which is convenient for hooking the sand mold box and moving forward. A threaded hole that runs through the front and rear is opened at the lower end of the pull-out movable plate 6, which is convenient for installation through threads. A left-right positioning rotating rod 7 is installed between the fixing holes of the plate 3 through bearings for easy rotation. The left and right outer circumferences of the positioning rotating rod 7 are provided with threads with opposite rotation directions for the synchronous inward and outward movement of the positioning movable plate 8. The left and right end faces of the positioning rotating rod 7 are provided with fixing columns for easy installation through bearings. The outer end faces of the fixing columns of the positioning rotating rod 7 are provided with regular hexagonal prisms for easy rotation through tools. The outer circumferences of the left and right ends of the positioning rotating rod 7 are provided with upward and downward positioning movable plates 8 for easy centering of the sand mold box. The middle of the positioning movable plate 8 is provided with left and right threaded holes for easy installation through threads.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In the present utility model, Figure 1 When the sand mold machine body 1 is used, the sand mold box is placed on the top of the sand mold box carrying plate 3, and the rolling contact ball 4 contacts the bottom of the sand mold box, thereby reducing the friction resistance when the sand mold box is pushed and moved, and then the sand mold box is pushed and moved backward, and the pull-out rotating rod 5 is rotated by a tool to engage with the pull-out moving plate 6, so that the pull-out moving plate 6 moves forward through the thread engagement, and the rear of the sand mold box is limited by pulling out the moving plate 6, and the positioning rotating rod 7 is rotated by a tool to engage with the positioning moving plate 8, so that the positioning moving plate 8 moves synchronously inward through threaded engagement, and the sand mold box is moved to the middle position of the sand box carrying plate 3 by positioning the movable plate 8, thereby realizing the center positioning of the sand mold box; when the sand mold box is removed from the top of the sand box carrying plate 3, the rotating rod 5 is pulled out by rotating the tool to engage with the pulling-out movable plate 6, so that the pulling-out movable plate 6 moves forward through the threaded engagement, and the pulling-out movable plate 6 pushes the sand mold box to move forward synchronously, so that the sand mold box moves forward to the front of the sand box carrying plate 3, and then the sand mold box is moved away from the top of the sand box carrying plate 3.

[0032] Embodiment 2:

[0033] The difference from the first embodiment is that the regular hexagonal prism of the pull-out rotating rod 5 can also be set as a regular heptagonal prism, so that the pull-out rotating rod 5 can only be rotated by a special tool that cooperates with the regular heptagonal prism, preventing non-staff from rotating and adjusting the pull-out rotating rod 5.

[0034] Embodiment three:

[0035] The difference from the first embodiment is that the regular hexagonal prism of the positioning rotating rod 7 can also be set as a regular heptagonal prism, so that the positioning rotating rod 7 can only be rotated by a special tool that cooperates with the regular heptagonal prism, preventing non-staff from rotating and adjusting the positioning rotating rod 7.

Claims

1. A sand molding machine, characterized in that: The invention comprises a sand mold machine body (1); the sand mold machine body (1) is provided with a sand mold machine shell (2); a sand box bearing plate (3) is installed at the front bottom of the sand mold machine shell (2) by bolts; a central annular array of stepped holes penetrating up and down is provided at four places on the top end face of the sand box bearing plate (3); a placement blind hole is provided in the top end face array of the sand box bearing plate (3); rolling contact balls (4) are placed inside the placement blind holes of the sand box bearing plate (3); a cross groove is provided in the middle of the top end face of the sand box bearing plate (3); bearing holes penetrating front and back are provided at the lower part of the front and rear ends of the cross groove of the sand box bearing plate (3); and fixing holes penetrating left and right are provided at the upper part of the left and right ends of the cross groove of the sand box bearing plate (3).

2. A sand molding machine as claimed in claim 1, characterized in that: A pull-out rotating rod (5) is installed between the bearing holes of the sand box bearing plate (3) via a bearing, and a thread is provided on the rear outer circumference of the pull-out rotating rod (5).

3. A sand molding machine as claimed in claim 2, characterized in that: The front and rear end surfaces of the pull-out rotating rod (5) are both provided with fixing columns, and the front end of the pull-out rotating rod (5) is provided with a regular hexagonal prism.

4. A sand molding machine as claimed in claim 3, characterized in that: A pull-out movable plate (6) is installed on the outer circumference of the rear end of the pull-out rotating rod (5) through a thread, and a threaded hole penetrating front and back is opened at the lower end of the pull-out movable plate (6).

5. A sand molding machine as claimed in claim 2, characterized in that: A positioning rotating rod (7) is installed between the fixing holes of the sand box bearing plate (3) via a bearing, and threads with opposite rotation directions are provided on the outer circumferences of the left and right sides of the positioning rotating rod (7).

6. A sand molding machine as claimed in claim 5, characterized in that: The left and right end surfaces of the positioning rotating rod (7) are both provided with fixing columns, and the outer end surface of the fixing column of the positioning rotating rod (7) is provided with a regular hexagonal prism.

7. A sand molding machine as claimed in claim 6, characterized in that: Positioning movable plates (8) are installed on the outer circumferences of the left and right ends of the positioning rotating rod (7), and a threaded hole penetrating left and right is opened in the middle of the positioning movable plate (8).

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