Automatic starting auxiliary casting tool for small-size round bar

Abstract

The utility model relates to metal casting field, concretely is a kind of small specification round bar automatic starting vehicle auxiliary casting tool, including plug head adjusting frame body, and the plug head adjusting frame body downside is equipped with multiple plug head mechanism;Plug head mechanism includes guide seat, plug head lifting device, lifting seat and plug head, and guide seat upper end is connected with plug head adjusting frame body, plug head lifting device and lifting seat are all located in the guide seat, and the lifting seat is driven lifting by plug head lifting device, lifting seat both sides are equipped with guide pulley and guide seat inner wall rolling fit;The plug head that is inserted into the plug head insertion part on crystallizer and is matched with plug head is equipped with plug head connecting rod, and the plug head connecting rod upper end is inserted in the lifting seat and is equipped with spring sleeve.The utility model can automatically cooperate with crystallizer to complete the quick filling operation of aluminium liquid, and can ensure that aluminium liquid filling in each flow passage in crystallizer is uniform, and then can ensure that subsequent round bar starting vehicle control consistency is good, and starting vehicle effect is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of metal casting, specifically to an automatic starting auxiliary casting fixture for small-sized round bars. Background Technology

[0002] Traditional casting of small-diameter aluminum alloy round bars (φ90 mm~φ300 mm) is mostly done manually with controlled flow. This method is difficult and risky due to the narrow starting window, and the risk increases with the number of small-diameter round bars cast. Furthermore, current technology typically involves non-standardized starting operations for small-diameter aluminum alloy round bars, relying heavily on operator experience. Since casting is a specialized process, it is highly susceptible to human error, posing significant safety hazards, impacting production efficiency, and jeopardizing product quality. Automating and standardizing the starting operation for small-diameter aluminum alloy round bars would undoubtedly solve these problems. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic casting auxiliary tooling for small-sized round bars, which can automatically cooperate with the crystallizer to complete the rapid filling operation of aluminum liquid and ensure that the aluminum liquid filling in each branch channel in the crystallizer is uniform. This ensures good consistency in the subsequent round bar starting control, making the automated and standardized starting operation of small-sized aluminum alloy round bars possible.

[0004] The objective of this utility model is achieved through the following technical solution: An automatic casting auxiliary fixture for small-sized round bars includes a plug adjusting frame, and multiple plug mechanisms are provided on the lower side of the plug adjusting frame. Each plug mechanism includes a guide seat, a plug lifting device, a lifting seat, and a plug. The upper end of the guide seat is connected to the plug adjusting frame. The plug lifting device and the lifting seat are both located in the guide seat. The lifting seat is driven to lift by the plug lifting device. Guide pulleys are provided on both sides of the lifting seat and roll in cooperation with the inner wall of the guide seat. The plug that is inserted into the plug insertion part on the crystallizer is provided with a plug connecting rod, and the upper end of the plug connecting rod is inserted into the lifting seat and fitted with a spring.

[0005] The inner walls on both sides of the guide seat are provided with guide grooves, and the guide pulleys are in rolling cooperation with the guide grooves on the corresponding sides.

[0006] Both sides of the lifting seat are equipped with pulley connecting rods, and the ends of the pulley connecting rods are connected to the guide pulleys on the corresponding sides.

[0007] The lower end of the lifting seat is provided with a guide limiting sleeve. The upper end of the plug connecting rod passes through the guide limiting sleeve and is inserted into the lifting seat. The plug connecting rod inside the lifting seat is provided with a spring pressure plate. The lifting seat is provided with a spring limiting stop. The spring is fitted on the plug connecting rod and is located between the spring pressure plate and the spring limiting stop.

[0008] The plug is a conical plug, and a sleeve is fitted on the outside of the plug.

[0009] The crystallizer includes a main channel and branch channels on both sides of the main channel. A plug insertion part is provided at the junction of the branch channel and the main channel, and the plug insertion part is provided with an inner hole that mates with the plug.

[0010] The advantages and positive effects of this utility model are as follows: 1. This utility model utilizes various plug mechanisms to automatically cooperate with the crystallizer to complete the rapid filling operation of molten aluminum. Before the molten aluminum is input, each plug blocks the connection between the branch channel and the main channel on the crystallizer, thus temporarily preventing the channels from connecting. Then, molten aluminum is first input into the main channel to the set height, and each plug rises rapidly at the same time to quickly and evenly fill the branch channels with molten aluminum in the main channel. This ensures that the molten aluminum is filled evenly in each branch channel, thereby ensuring good consistency in the subsequent control of the round bar starting.

[0011] 2. In the plug mechanism of this utility model, since the two sides of the lifting seat abut against the inner walls of the two sides of the guide seat through the pulley connecting rod and the pulley, the vertical lifting of the lifting seat can be guaranteed. At the same time, the pulley and the inner wall of the guide seat roll together, which can ensure that the lifting seat lifts quickly and smoothly, thereby enabling the plug to quickly open and seal the connection between the branch channel and the main channel on the crystallizer.

[0012] 3. In the plug mechanism of this utility model, since the plug lifting speed is relatively fast, a spring is provided in the lifting seat of the plug mechanism and sleeved on the plug connecting rod to play a buffering role. At the same time, when the plug is inserted into the inner hole of the corresponding plug insertion part on the crystallizer, the spring baffle on the plug connecting rod can move upward relative to each other and cooperate with the spring limiting stop in the lifting seat to compress the spring, so that the spring can apply a certain pressure to ensure that the plug sleeve on the outside of the plug can fit tightly with the inner hole at the junction of the branch channel and the main channel, thereby ensuring the aluminum liquid blocking and sealing effect.

[0013] 4. In the plug mechanism of this utility model, the spring baffle on the plug connecting rod and the guide limiting sleeve at the lower end of the lifting seat cooperate to ensure that the plug connecting rod will not disengage from the lifting seat when the plug mechanism is not working. At the same time, the guide limiting sleeve can further ensure the vertical sliding and lifting of the plug connecting rod, thereby ensuring that the plug can be accurately inserted into the inner hole at the connection between the corresponding branch channel and the main channel.

[0014] 5. When this utility model is working, the connection between the branch channels and the main channel on the crystallizer is blocked by each plug at the same time. Before the aluminum liquid enters each branch channel, the aluminum liquid in the main channel can be raised to the set liquid level to achieve aluminum storage. This facilitates the rapid filling of the mold in the main channel while reducing the temperature drop. In addition, the height (or capacity) of the aluminum liquid in the main channel is determined according to the amount of aluminum melt required by each branch channel. When each plug rises rapidly, the aluminum liquid can be uniformly and quickly filled into each branch channel, thereby avoiding the risk of flow interruption in individual branch channels.

[0015] 6. This utility model can be applied to the starting control of a large number of small-sized round bars. Furthermore, because the aluminum liquid filling in each branch channel of the crystallizer is uniform, it can ensure that the subsequent starting effect is stable and reliable. This also makes the automated and standardized starting operation of small-sized aluminum alloy round bars possible. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 for Figure 1 A schematic diagram of the middle stopper mechanism. Figure 3 for Figure 2 An enlarged schematic diagram of the internal structure of the guide seat. Figure 4 This is a schematic diagram of a crystallizer structure that works in conjunction with this invention. Figure 5 for Figure 4 KK view in Figure 6 for Figure 5 A schematic diagram showing the downward movement of the cylindrical bar driven by the traction device. Figure 7 for Figure 4 A schematic diagram showing the fit between the middle plug insertion part and the plug.

[0017] Among them, 1 is the plug adjustment frame, 2 is the plug mechanism, 201 is the guide seat, 202 is the plug lifting device, 203 is the guide pulley, 204 is the plug connecting rod, 205 is the plug, 206 is the guide limiting sleeve, 207 is the spring, 208 is the hinge shaft, 209 is the lifting seat, 2091 is the pulley connecting rod, 2092 is the spring limiting stop, 210 is the plug sleeve, 3 is the crystallizer, 301 is the plug insertion part, 3011 is the inner hole, 302 is the main channel, 3021 is the aluminum liquid inlet, 3022 is the emergency aluminum liquid outlet, 303 is the diversion channel, 304 is the inner cavity of the crystallizer, 4 is the aluminum liquid height detection device, 5 is the traction device, and 6 is the round bar. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] like Figure 1 As shown, this utility model includes a plug adjusting frame 1, and a plurality of plug mechanisms 2 are provided on the lower side of the plug adjusting frame 1; as Figures 2-3 As shown, the plug mechanism 2 includes a guide seat 201, a plug lifting device 202, a lifting seat 209, and a plug 205. The upper end of the guide seat 201 is connected to the plug adjusting frame 1. Both the plug lifting device 202 and the lifting seat 209 are located within the guide seat 201, and the lifting seat 209 is driven to rise and fall by the plug lifting device 202. Figures 2-4 As shown, the plug 205, which is inserted into the plug insertion part 301 on the crystallizer 3, is provided with a plug connecting rod 204, and the upper end of the plug connecting rod 204 is inserted into the lifting seat 209 and fitted with a spring 207.

[0020] like Figures 2-3 As shown, in this embodiment, the upper end of the lifting seat 209 is connected to the power shaft of the plug lifting device 202 via a hinge shaft 208. Alternatively, the plug lifting device 202 can be a linear drive device such as a cylinder.

[0021] like Figures 2-3 As shown in this embodiment, the lifting seat 209 is provided with guide pulleys 203 on both sides, and the inner walls on both sides of the guide seat 201 are provided with guide grooves, and the guide pulleys 203 roll in cooperation with the guide grooves on the corresponding sides.

[0022] like Figure 3 As shown, in this embodiment, both sides of the lifting seat 209 are provided with pulley connecting rods 2091, and the ends of the pulley connecting rods 2091 are connected to the guide pulleys 203 on the corresponding sides.

[0023] like Figure 3 As shown, in this embodiment, the lower end of the lifting seat 209 is provided with a guide limiting sleeve 206, the upper end of the plug connecting rod 204 passes through the guide limiting sleeve 206 and is inserted into the lifting seat 209, the plug connecting rod 204 inside the lifting seat 209 is provided with a spring pressure plate, the lifting seat 209 is provided with a spring limiting stop 2092, and the spring 207 is fitted on the plug connecting rod 204 and is located between the spring pressure plate and the spring limiting stop 2092.

[0024] When the plug mechanism 2 is not working, the lower side of the spring pressure plate abuts against the guide limiting sleeve 206 to limit the plug connecting rod 204 from disengaging from the lifting seat 209. At the same time, the guide limiting sleeve 206 can also ensure that the plug connecting rod 204 is in a vertical state.

[0025] When the plug mechanism 2 is working, the plug lifting device 202 drives the lifting seat 209 to descend together with the plug 205, so that the plug 205 can be inserted into the... Figure 4 In the corresponding plug insertion part 301 on the crystallizer 3 shown, as follows Figure 7 As shown, the plug 205 will be fully inserted into the inner hole 3011 of the corresponding plug insertion part 301 to block the flow of molten aluminum in the main channel 302 of the crystallizer 3 into the branch channel 303. At the same time, the spring pressure plate will move upward relative to the spring and cooperate with the spring limiting stop 2092 to compress the spring 207, thereby enabling the spring 207 to apply pressure to make the plug 205 fit tightly with the inner hole 3011 of the corresponding plug insertion part 301.

[0026] like Figure 2 As shown, in this embodiment, the plug 205 is an iron conical plug, and a silicone felt sleeve 210 is fitted on the outside of the plug 205.

[0027] like Figure 4 As shown, in this embodiment, the crystallizer 3 includes a main channel 302, and branch channels 303 are provided on both sides of the main channel 302. A plug insertion portion 301 is provided at the junction of the branch channel 303 and the main channel 302. Figure 7 As shown, the inner hole 3011 on the plug insertion part 301 is also conical to mate with the plug 205. Additionally, as... Figure 4 As shown, the main channel 302 has an aluminum liquid inlet 3021 at one end and an emergency aluminum liquid outlet 3022 at the other end.

[0028] In this embodiment, the plug adjustment frame 1 can be driven to move by a robot with XYZ degrees of freedom, so as to ensure that each plug mechanism 2 on the lower side of the plug adjustment frame 1 can automatically align with the plug insertion part 301 on the crystallizer 3. The robot is a technology known in the art and is a commercially available product.

[0029] The working principle of this utility model is as follows: like Figures 4-7 As shown, the operation of this utility model includes the following steps: Step 1: The plug adjustment frame 1 is delivered to the top of the crystallizer 3 by a robot or other device, and each plug 205 on the lower side of the plug adjustment frame 1 is aligned with the inner hole 3011 of the corresponding plug insertion part 301 on the crystallizer 3.

[0030] Step 2: The casting equipment performs a self-inspection. After confirming that the position of the plug 205 is correct, the plug lifting device 202 is activated to drive the plug 205 to automatically descend and insert into the inner hole 3011 of the corresponding plug insertion part 301. At this time, the plug 205 will block the connection between the branch channel 303 and the main channel 302 on the crystallizer 3, so that the main channel 302 and the branch channel 303 cannot be connected temporarily.

[0031] Step 3: Aluminum liquid begins to be fed into the main channel 302 of the crystallizer 3. At this time, the aluminum liquid height detection device 4 (in this embodiment, a laser rangefinder, which is a commercially available product) located above the crystallizer 3 detects the aluminum liquid level in the main channel 302 in real time. When the aluminum liquid height reaches the set value, the aluminum liquid height detection device 4 sends a signal to the casting equipment control system. The casting equipment control system will stop feeding aluminum liquid into the main channel 302 and then control each plug lifting device 202 to drive the corresponding plug 205 to rise synchronously and quickly, so that the aluminum liquid in the main channel 302 flows into each branch channel 303 at the same time and evenly.

[0032] Step 4: The molten aluminum first flows synchronously into each of the branch channels 303, and then flows into each crystallizer cavity 304. At this time, as follows... Figure 5 As shown, the traction device 5 of the casting equipment is in an upward state, and the upper end of the traction device 5 forms the bottom of the corresponding crystallizer cavity 304.

[0033] Step 5: As the molten aluminum is injected, the molten aluminum level in each crystallizer cavity 304 increases. Since the molten aluminum flows in almost simultaneously, the difference in molten aluminum level in each crystallizer cavity 304 is very small. At this time, the molten aluminum level detection device 4 detects the molten aluminum level in the crystallizer cavity 304 in real time. When the set height value is reached, a signal is sent to the casting equipment control system so that the casting equipment can start executing the preset casting parameters.

[0034] Step Six: After the casting equipment starts for the set time, if... Figures 5-6 As shown, the traction device 5 of the casting equipment will drive the round bar 6 smoothly downward, and at this time the lifting operation of the round bar 6 is completed.

[0035] In the above steps, the casting equipment (including the crystallizer 3 and the traction device 5) and its control system are technologies known in the art. In this embodiment, the crystallizer 3 is a casting disc crystallizer.

[0036] In step two above, firstly as follows Figures 2-3As shown, since the lifting seat 209 abuts against the inner walls of the guide seat 201 on both sides through the pulley connecting rod 2091 and the pulley 203, the vertical lifting of the lifting seat 209 can be guaranteed. At the same time, the pulley 203 rolls with the inner wall of the guide seat 201, which can ensure that the lifting seat 209 lifts quickly and smoothly, thereby allowing the plug 205 to quickly open and seal the inner hole 3011 of the plug insertion part 301.

[0037] Secondly, as Figures 2-3 As shown, since the lifting speed of the plug 205 of this utility model is relatively fast, a spring 207 is provided in the lifting seat 209 and fitted on the plug connecting rod 204 to play a buffering role. At the same time, when the plug 205 is inserted into the inner hole 3011 of the corresponding plug insertion part 301, the spring baffle on the plug connecting rod 204 moves upward relative to each other and cooperates with the spring limiting stop 2092 in the lifting seat 209 to compress the spring 207, so that the spring 207 can apply a certain pressure to ensure that the plug sleeve 210 on the outside of the plug 205 can fit tightly with the inner hole 3011, thereby ensuring the aluminum liquid blocking and sealing effect.

[0038] Again Figures 2-3 As shown, the spring baffle on the plug connecting rod 204 is in a limiting engagement with the guide limiting sleeve 206 at the lower end of the lifting seat 209, which can ensure that the plug connecting rod 204 will not disengage from the lifting seat 209 when the plug mechanism 2 is not working. At the same time, the guide limiting sleeve 206 can further ensure the vertical lifting of the plug connecting rod 204, thereby ensuring that the plug 205 can be accurately inserted into the corresponding inner hole 3011.

[0039] In step three above, before the molten aluminum enters each branch channel 303, the present invention first raises the molten aluminum to a set liquid level in the main channel 302 to achieve aluminum storage. This facilitates rapid filling of the molten aluminum in the main channel 302 while reducing temperature drop. In addition, the height (or capacity) of the molten aluminum in the main channel 302 is determined according to the amount of molten aluminum required for each branch channel 303. When each plug 205 rises rapidly, the molten aluminum can be uniformly and quickly filled into each branch channel 303, thereby avoiding the risk of flow interruption in individual branch channels 303.

[0040] In step four above, after the aluminum liquid is rapidly filled into the mold, a period of time must be waited (the time must be strictly controlled). After the bottom of the part in contact with the traction device 5 in each of the inner cavities 304 of the crystallizer 3 is completed, the corresponding liquid level height in the inner cavity 304 of the crystallizer is the starting height of the casting equipment.

Claims

1. An automatic casting tooling for small-sized round bars, characterized in that: The device includes a stopper adjustment frame (1), and a plurality of stopper mechanisms (2) are provided on the lower side of the stopper adjustment frame (1); the stopper mechanism (2) includes a guide seat (201), a stopper lifting device (202), a lifting seat (209) and a stopper (205), wherein the upper end of the guide seat (201) is connected to the stopper adjustment frame (1), the stopper lifting device (202) and the lifting seat (209) are both located in the guide seat (201), the lifting seat (209) is driven to lift by the stopper lifting device (202), and the lifting seat (209) is provided with guide pulleys (203) on both sides of the lifting seat (209) and rolls with the inner wall of the guide seat (201); the stopper (205) which is inserted into the stopper insertion part (301) on the crystallizer (3) is provided with a stopper connecting rod (204), and the upper end of the stopper connecting rod (204) is inserted into the lifting seat (209) and fitted with a spring (207).

2. The automatic casting aid for small-diameter round bars according to claim 1, characterized in that: The inner walls on both sides of the guide seat (201) are provided with guide grooves, and the guide pulley (203) rolls in cooperation with the guide groove on the corresponding side.

3. The automatic casting aid for small-diameter round bars according to claim 1, characterized in that: The lifting seat (209) is provided with pulley connecting rods (2091) on both sides, and the end of the pulley connecting rods (2091) is connected to the guide pulley (203) on the corresponding side.

4. The automatic casting aid for small-diameter round bars according to claim 1, characterized in that: The lower end of the lifting seat (209) is provided with a guide limiting sleeve (206). The upper end of the plug connecting rod (204) passes through the guide limiting sleeve (206) and is inserted into the lifting seat (209). A spring pressure plate is provided on the plug connecting rod (204) inside the lifting seat (209). A spring limiting stop (2092) is provided inside the lifting seat (209). The spring (207) is fitted on the plug connecting rod (204) and is located between the spring pressure plate and the spring limiting stop (2092).

5. The automatic casting aid for small-diameter round bars according to claim 1, characterized in that: The plug (205) is a conical plug, and a sleeve (210) is fitted on the outside of the plug (205).

6. The automatic casting aid for small-diameter round bars according to claim 1, characterized in that: The crystallizer (3) includes a main channel (302) and branch channels (303) are provided on both sides of the main channel (302). The plug insertion part (301) is provided at the junction of the branch channel (303) and the main channel (302), and the plug insertion part (301) is provided with an inner hole (3011) that is engaged with the plug (205).

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