A guide limit device for lost foam mold

Abstract

The utility model provides a guiding and limiting device for a lost foam mold, comprising a mold box, an adjusting support assembly is arranged above the mold box, and a vibration assembly is arranged at the bottom of a support platform. By loosening a fixing nut, the support frame can be moved forwards and backwards, so as to adjust the forward and backward displacement of a conveying vertical pipe. By loosening a second positioning screw, the left and right position of the conveying vertical pipe can be adjusted through a displacement seat. By loosening the first positioning screw, the conveying vertical pipe can be moved up and down, so as to adjust the use height of the conveying vertical pipe, so as to facilitate staff to make multi-directional adjustments to the conveying vertical pipe according to needs. By starting a vibration motor, the vibration motor can drive the mold box to vibrate through a heat-insulating support frame and a support platform to vibrate and shape quartz sand. In this process, the damping shock absorber can isolate most of the vibrations transmitted from the support platform, so as to reduce the vibration noise of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of lost foam, in particular to a guide and limiting device for a lost foam mould. Background Art

[0002] Lost foam casting is a new type of casting that uses a foam plastic mold with a binder-free dry sand combined with vacuum technology. Lost foam casting is a new type of casting that uses a paraffin wax or foam model that is similar in size and shape to the casting to form a mold, and then burying it in dry quartz sand after brushing refractory paint on the mold and drying it. Finally, pouring it under negative pressure causes the mold to gasify, and the liquid metal occupies the position of the mold. Finally, the liquid metal solidifies and cools to form a casting. During the use of the lost foam mold, a corresponding guide limit device is required to limit and guide the conveying pipe that conveys the metal liquid.

[0003] Publication number "CN219254045U" provides a guide and limit device for a lost foam mold. Through the coordinated arrangement of a support block, a fixed shaft, a support plate, a first slider, a second slider, a conveying pipe, a second threaded rod, a second swivel, a second clamping block, a third threaded rod, a third swivel, a third clamping block, a fixed rod and a feed funnel, the position of the conveying pipe can be adjusted according to the position of the mold feed port during use, thereby facilitating the feeding of different molds.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Although the guide limit device can adjust the left and right displacement and the up and down height of the conveying tube, it cannot adjust the front and back displacement of the conveying tube, and the adjustment range needs to be improved. Secondly, the guide limit device uses a striking block to strike the placement table, causing the placement table to vibrate for shaping. During actual use, this type of vibration will cause the vibration to be directly transmitted to the processing table through the processing box, causing resonance noise between the processing table and the ground, and the resonance will also affect the stability of the processing table, resulting in poor practicality. Utility Model Content

[0006] The purpose of the utility model is to provide a guide and limit device for a lost foam mold to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A guiding and limiting device for a lost foam mold comprises a mold box, a feeding funnel, a conveying vertical pipe, a supporting base plate and a supporting table, wherein a supporting table is installed above the supporting base plate, a mold box is installed on the upper end of the supporting table, a conveying vertical pipe is installed above the mold box, a feeding funnel is arranged at the upper end of the conveying vertical pipe, an adjusting support assembly is arranged above the mold box, and the adjusting support assembly is used to adjust and support the conveying vertical pipe in multiple directions, and a vibration assembly is arranged at the bottom of the support table, and the vibration assembly is used to vibrate the mold box.

[0009] Preferably, the adjustment support assembly includes a support frame, a displacement seat, a limit guide rail, a limit sleeve, a fixed screw and a displacement block. The limit guide rails are symmetrically fixedly connected to the left and right sides of the upper end surface of the support base plate, a displacement block is installed inside the limit guide rail, the upper end surface of the displacement block is connected to the support frame, the left end surface of the displacement block is provided with a fixed screw, the upper end surface of the support frame is installed with a displacement seat, and a limit sleeve is provided in the middle position of the upper end surface of the displacement seat.

[0010] Preferably, the vibration assembly includes a damping shock absorber, a vibration motor, an insulation board and an insulation support frame. The insulation support frame is fixedly connected to the middle position of the lower end surface of the support platform, the insulation board is installed on the lower end surface of the insulation support frame, the vibration motor is installed on the lower end surface of the insulation board, and the damping shock absorbers are symmetrically installed on the left and right sides and the front and rear sides of the lower end surface of the support platform.

[0011] Preferably, extension blocks are symmetrically arranged on the left and right sides of the annular side surface of the support platform, a limiting rod is inserted inside the extension block, and a rubber vibration isolation pad is bonded to the lower end surface of the support base plate.

[0012] Preferably, a first positioning screw is provided on the left side of the annular side surface of the limiting sleeve, a second positioning screw is installed on the front end surface of the displacement seat, and a limiting groove is provided on the lower end surface of the displacement seat, and the limiting groove matches the support frame.

[0013] Preferably, a limited position through cavity is provided on the upper end surface of the support frame, a guide groove is provided on the upper end surface of the limited position guide rail, and the guide groove matches the displacement block.

[0014] Preferably, a fixing nut is installed on the annular side surface of the fixing screw, and a limiting through groove is provided on the left end surface of the limiting guide rail, and the limiting through groove matches the fixing screw.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Before casting the lost foam mold, the support frame can be moved forward and backward by loosening the fixing nut to adjust the front and rear displacement of the vertical conveyor pipe. By loosening the second positioning screw, the left and right position of the vertical conveyor pipe can be adjusted through the displacement seat. By loosening the first positioning screw, the vertical conveyor pipe can be moved up and down to adjust the height of the vertical conveyor pipe, so as to facilitate the staff to adjust the vertical conveyor pipe in multiple directions according to needs;

[0017] 2. During the lost foam mold casting process, by starting the vibration motor, the vibration motor can drive the mold box to vibrate and vibrate the quartz sand through the insulation support frame and the support table. In this process, the damping shock absorber can isolate most of the vibrations transmitted from the support table to prevent the support base plate from being directly subjected to more vibrations, and the rubber isolation pad also avoids resonance between the support base plate and the ground, which not only reduces the vibration noise of the device, but also ensures the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a right side view of adjusting the support assembly and the vibration assembly in the utility model;

[0020] Figure 3 It is a front cross-sectional view of adjusting the support assembly and the vibration assembly in the utility model;

[0021] Figure 4 This is a structural diagram of adjusting the support assembly in the utility model;

[0022] Figure 5 It is a structural diagram of the vibration component in the utility model;

[0023] Figure 6 It is a structural diagram of the displacement seat in the utility model.

[0024] In the figure: 1. mold box; 2. adjustment support assembly; 21. support frame; 22. limit cavity; 23. displacement seat; 231. second positioning screw; 232. limit slot; 24. limit guide rail; 25. guide slot; 26. limit sleeve; 261. first positioning screw; 27. fixing screw; 271. fixing nut; 28. displacement block; 29. ​​limit slot; 3. feed hopper; 4. conveying vertical pipe; 5. support base plate; 51. rubber isolation pad; 6. support table; 7. vibration assembly; 71. damping shock absorber; 72. limit rod; 73. extension block; 74. vibration motor; 75. insulation board; 76. insulation support frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A guide and limit device for a lost foam mold comprises a mold box 1, a feed hopper 3, a conveying vertical pipe 4, a support base plate 5 and a support table 6. The support base plate 5 is installed with the support table 6 above, and the support table 6 can support the mold box 1. The mold box 1 is installed on the upper end of the support table 6. The mold box 1 is convenient for workers to perform lost foam casting. A conveying vertical pipe 4 is installed above the mold box 1. The conveying vertical pipe 4 and the feed funnel 3 are an integrated structure. The feed funnel 3 is arranged on the upper end of the conveying vertical pipe 4. The conveying vertical pipe 4 and the feed funnel 3 are convenient for workers to pour liquid metal into the mold box 1.

[0029] An adjustment support assembly 2 is provided above the mold box 1 , and the adjustment support assembly 2 is used to adjust and support the vertical conveying pipe 4 in multiple directions. A vibration assembly 7 is provided at the bottom of the support platform 6 , and the vibration assembly 7 is used to vibrate the mold box 1 .

[0030] The adjustment support assembly 2 includes a support frame 21, a displacement seat 23, a limit guide rail 24, a limit sleeve 26, a fixing screw 27 and a displacement block 28. The upper end surface of the support substrate 5 is symmetrically fixedly connected to the limit guide rail 24 on both sides. The limit guide rail 24 is connected to the support substrate 5 by welding. The limit guide rail 24 can support the displacement block 28. A displacement block 28 is installed inside the limit guide rail 24. The displacement block 28 is connected to the support frame 21 and the support frame 21 by welding. The displacement block 28 can support the support frame 21. The upper end surface of the displacement block 28 is connected to the support frame 21. The support frame 21 can support the displacement seat 23. The left end surface of the displacement block 28 A fixing screw 27 is provided, and a fixing nut 271 is installed on the annular side of the fixing screw 27. The fixing nut 271 and the fixing screw 27 are convenient for the staff to fix the displacement block 28. The fixing nut 271 is a butterfly nut. The fixing nut 271 which is a butterfly nut is convenient for the staff to tighten or loosen it by hand. A displacement seat 23 is installed on the upper end surface of the support frame 21. The displacement seat 23 can support the limiting sleeve 26. A limiting sleeve 26 is arranged in the middle position of the upper end surface of the displacement seat 23. The limiting sleeve 26 is connected to the displacement seat 23 by welding. The inner diameter of the limiting sleeve 26 is the same as the outer diameter of the conveying vertical pipe 4. The limiting sleeve 26 can limit the conveying vertical pipe 4.

[0031] A first positioning screw 261 is arranged on the left side of the annular side surface of the limiting sleeve 26. The first positioning screw 261 can position the delivery vertical pipe 4 inserted in the limiting sleeve 26. The first positioning screw 261 is a butterfly screw. The first positioning screw 261 which is a butterfly screw is convenient for the staff to rotate it by hand. A second positioning screw 231 is installed on the front end surface of the displacement seat 23. The second positioning screw 231 can position the displacement seat 23. The second positioning screw 231 is a butterfly screw. The second positioning screw 231 which is a butterfly screw is convenient for the staff to rotate it by hand. A limiting groove 232 is arranged on the lower end surface of the displacement seat 23, and the limiting groove 232 matches the support frame 21. 232 prevents the displacement seat 23 from shaking or deflecting during the left and right movement. A limited cavity 22 is provided on the upper end surface of the support frame 21. The limited cavity 22 facilitates the left and right movement of the conveying vertical pipe 4 inside the support frame 21. A guide groove 25 is provided on the upper end surface of the limiting guide rail 24, and the guide groove 25 matches the displacement block 28. The guide groove 25 can limit and guide the displacement block 28, thereby preventing the support frame 21 from shaking or deflecting during the forward and backward displacement. A limited groove 29 is provided on the left end surface of the limiting guide rail 24, and the limited groove 29 matches the fixing screw 27. The limited groove 29 facilitates the fixing screw 27 to move forward and backward inside the limiting guide rail 24.

[0032] Embodiment 2:

[0033] On the basis of the first embodiment, in this embodiment, by starting the vibration motor 74, the vibration motor 74 can drive the mold box 1 to vibrate through the insulation support frame 76 and the support platform 6 to vibrate and shape the quartz sand. In this process, the damping shock absorber 71 can isolate most of the vibrations transmitted from the support platform 6 to prevent the support substrate 5 from being directly subjected to more vibrations, and the rubber isolation pad 51 also avoids resonance between the support substrate 5 and the ground, which not only reduces the vibration noise of the device, but also ensures the stability of the device.

[0034] The vibration assembly 7 includes a damping shock absorber 71, a vibration motor 74, an insulation board 75 and an insulation support frame 76. The insulation support frame 76 is fixedly connected to the middle position of the lower end surface of the support platform 6. The insulation support frame 76 is connected to the support platform 6 by welding. The insulation support frame 76 can not only support the vibration motor 74, but also prevent the heat of the support platform 6 from being directly transferred to the vibration motor 74. The lower end surface of the insulation support frame 76 is installed with an insulation board 75. The insulation board 75 makes the lower end surface of the insulation support frame 76 better insulated, thereby preventing the vibration motor 74 from being subjected to more heat during use.

[0035] A vibration motor 74 is installed on the lower end surface of the heat insulation board 75. The vibration motor 74 is connected to the external control panel through a wire. When working, the vibration motor 74 can drive the mold box 1 to vibrate through the heat insulation support frame 76 and the support platform 6, so that the vibration of the mold box 1 is transmitted to the internal mold and the quartz sand around the mold, so that the quartz sand on the outer wall of the mold is fully fitted with the outer wall of the mold for shaping by using vibration. Damping shock absorbers 71 are symmetrically installed on the left and right sides and the front and back sides of the lower end surface of the support platform 6. The damping shock absorber 71 can not only support the support platform 6, but also has vibration isolation capability to prevent the vibration in the support platform 6 from being directly transmitted to the support substrate 5. Extension blocks 73 are symmetrically arranged on the left and right sides of the annular side of the support platform 6, the extension block 73 is connected to the support platform 6 by welding, a limiting rod 72 is inserted inside the extension block 73, the limiting rod 72 is connected to the support base plate 5 by welding, the limiting rod 72 and the extension block 73 can limit the support platform 6 to prevent the support platform 6 from shaking or shifting during use, a rubber vibration isolation sleeve is arranged between the extension block 73 and the limiting rod 72, the rubber vibration isolation sleeve prevents resonance between the extension block 73 and the limiting rod 72, and a rubber vibration isolation pad 51 is bonded to the lower end surface of the support base plate 5, the rubber vibration isolation pad 51 prevents resonance between the support base plate 5 and the external ground.

[0036] Working principle: When performing lost foam mold casting, the staff first places the external foam model mold into the mold box 1, and then loosens the fixing nuts 271 on the left and right sides. At this time, the support frame 21 can be moved forward and backward to adjust the forward and backward displacement of the conveying vertical pipe 4. In this process, the limit guide rail 24 can limit and guide the displacement block 28 to prevent the support frame 21 from shaking or offsetting during the forward and backward displacement process. After the adjustment is completed, the fixing nuts 271 on the left and right sides are tightened respectively to fix the displacement block 28 with the help of the fixing screw 27 to avoid The support frame 21 is displaced forward and backward again, and then the second positioning screw 231 is loosened. At this time, the left and right position of the conveying vertical pipe 4 can be adjusted through the displacement seat 23. After adjusting to the required position, the second positioning screw 231 is tightened to position the displacement seat 23, and then the first positioning screw 261 is loosened. At this time, the conveying vertical pipe 4 can be moved up and down to adjust the use height of the conveying vertical pipe 4. After adjusting to the required height, the first positioning screw 261 is tightened to prevent the conveying vertical pipe 4 from slipping during use; when the bottom of the conveying vertical pipe 4 After adjusting to insert the pouring port of the external foam model mold, a proper amount of quartz sand can be poured into the mold box 1. At this time, the vibration motor 74 can be started to drive the mold box 1 to vibrate through the heat insulation support frame 76 and the support platform 6, and the vibration will be transmitted to the external foam model mold and the surrounding quartz sand, so as to use the vibration to make the surrounding quartz sand and the outer wall of the external foam model mold fully fit for shaping. In this process, the damping shock absorber 71 can isolate most of the vibrations transmitted from the support platform 6, avoid the support substrate 5 from being directly subjected to more vibrations, and the rubber The seismic isolation pad 51 also avoids resonance between the supporting substrate 5 and the ground, thereby reducing the vibration noise of the device. At the same time, the limit rod 72 and the extension block 73 can limit the support platform 6 to prevent the support platform 6 from shaking or shifting during use; after the vibration molding is completed, the vibration motor 74 can be turned off. At this time, the staff uses the feeding funnel 3 and the conveying vertical pipe 4 to pour the liquid metal into the external foam model mold to gasify it for lost foam casting. Since the detailed process of lost foam mold casting is a relatively mature technology in the existing technology, it will not be described in detail here.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide and limit device for a lost foam mold, comprising a mold box (1), a feed hopper (3), a conveying vertical pipe (4), a supporting base plate (5) and a supporting platform (6), characterized in that: A support platform (6) is installed above the support substrate (5), a mold box (1) is installed on the upper end of the support platform (6), a conveying vertical pipe (4) is installed above the mold box (1), and a feeding funnel (3) is provided at the upper end of the conveying vertical pipe (4); An adjustment support assembly (2) is arranged above the mold box (1), and the adjustment support assembly (2) is used to adjust and support the conveying vertical pipe (4) in multiple directions. A vibration assembly (7) is arranged at the bottom of the support platform (6), and the vibration assembly (7) is used to vibrate the mold box (1).

2. A guide and limit device for a lost foam mold according to claim 1, characterized in that: The adjustment support assembly (2) comprises a support frame (21), a displacement seat (23), a limiting guide rail (24), a limiting sleeve (26), a fixing screw (27) and a displacement block (28); the limiting guide rails (24) are symmetrically fixedly connected to the left and right sides of the upper end surface of the support base plate (5); a displacement block (28) is installed inside the limiting guide rail (24); the upper end surface of the displacement block (28) is connected to the support frame (21); the left end surface of the displacement block (28) is provided with a fixing screw (27); the upper end surface of the support frame (21) is provided with a displacement seat (23); and the limiting sleeve (26) is provided at the middle position of the upper end surface of the displacement seat (23).

3. The guide and limit device for lost foam mold according to claim 1, characterized in that: The vibration assembly (7) comprises a damping shock absorber (71), a vibration motor (74), a heat insulation board (75) and a heat insulation support frame (76); the heat insulation support frame (76) is fixedly connected to the middle position of the lower end surface of the support platform (6); the heat insulation board (75) is installed on the lower end surface of the heat insulation support frame (76); the vibration motor (74) is installed on the lower end surface of the heat insulation board (75); and the damping shock absorber (71) is symmetrically installed on the left and right sides and the front and rear sides of the lower end surface of the support platform (6).

4. The guide and limit device for lost foam mold according to claim 1, characterized in that: Extension blocks (73) are symmetrically arranged on the left and right sides of the annular side surface of the support platform (6), and a limit rod (72) is inserted into the extension block (73). A rubber vibration isolation pad (51) is bonded to the lower end surface of the support base plate (5).

5. The guide and limit device for lost foam mold according to claim 2, characterized in that: A first positioning screw (261) is arranged on the left side of the annular side surface of the limiting sleeve (26), a second positioning screw (231) is installed on the front end surface of the displacement seat (23), a limiting groove (232) is arranged on the lower end surface of the displacement seat (23), and the limiting groove (232) matches the support frame (21).

6. The guide and limit device for lost foam mold according to claim 2, characterized in that: The upper end surface of the support frame (21) is provided with a position limiting through cavity (22), the upper end surface of the position limiting guide rail (24) is provided with a guide groove (25), and the guide groove (25) matches the displacement block (28).

7. The guide and limit device for lost foam mold according to claim 2, characterized in that: A fixing nut (271) is installed on the annular side surface of the fixing screw rod (27), and a limiting through groove (29) is provided on the left end surface of the limiting guide rail (24), and the limiting through groove (29) matches the fixing screw rod (27).

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