A die changing apparatus

Abstract

The application relates to a die changing device and relates to the technical field of die changing equipment, which comprises a press, a bearing table and a die changing trolley. When the die is placed on two first conveying wheel groups, the trolley body is moved to be arranged opposite to the press, and then the die is pulled from the two first conveying wheel groups to two second conveying wheel groups by a push-pull machine. When the die is located on the two second conveying wheel groups, the die conveying is opposite to the above steps. The application is provided with the above structure, ground dragging chains or sliding wires and other relatively space-occupying structures are not arranged, the whole die changing device occupies small space during use, the die changing trolley is more flexible, the safety and convenience are higher, the die changing trolley can travel at any position in a factory building, the die changing trolley can change the die of the press at any position in the factory building, the die changing trolley is more mobile, and the die changing trolley is convenient for practical application.

Description

Technical Field

[0001] This invention relates to the field of mold changing equipment technology, and more particularly to a mold changing device. Background Technology

[0002] In the existing technology, the die changing of presses and punches mainly takes the following forms:

[0003] One method is to use a rail-guided mold changing vehicle. This requires a fixed track to be installed on the ground, which occupies the space around the press. The ground also needs to be equipped with drag chains or sliding lines, which affects the site layout and the workers' operating space. It can only be used for one-to-one or one-to-one production line, and there are limitations such as the production line must be laid out in a straight line.

[0004] Secondly, using forklifts for mold changing is very dangerous, especially when forklifts are carrying molds, which are at risk of falling at any time and take a long time to change molds.

[0005] However, neither of the two existing mold-changing structures is convenient for practical application, resulting in the entire mold-changing device occupying a large space or causing safety issues during use. Therefore, there is an urgent need for a mold-changing device. Summary of the Invention

[0006] In view of the current state of the technology, the present invention provides a mold changing device that can effectively solve the problems that the two mold changing structures in the prior art are not convenient for practical application, resulting in the entire mold changing device occupying a large space or causing safety issues during use.

[0007] This invention is achieved through the following technical solution:

[0008] This invention provides a mold changing device, comprising:

[0009] press.

[0010] A support platform is provided on the press, and the support platform is provided with two symmetrically distributed first conveyor wheel sets, which are used to convey the mold.

[0011] A mold-changing trolley includes a trolley body, two second conveyor wheel sets, and a push-pull mechanism. The trolley body is movable and is arranged opposite to the press. The two second conveyor wheel sets are disposed on the trolley body for conveying the mold. The conveying direction of the second conveyor wheel sets is the same as that of the first conveyor wheel sets. The push-pull mechanism is disposed on the trolley body for pulling the mold from the two first conveyor wheel sets to the two second conveyor wheel sets or for pushing the mold from the two second conveyor wheel sets to the two first conveyor wheel sets.

[0012] Furthermore, the conveying direction of the first conveying wheel set is set as the first direction. The push-pull machine includes a push-pull rail, a push-pull hook and a first driving member. The push-pull rail is located on the top of the trolley body. The top of the push-pull rail is lower than the top of the two second conveying wheel sets. The push-pull hook is slidably connected to the push-pull rail and its movement direction is the same as or opposite to the first direction. The push-pull hook is used to clamp the mold. The first driving member is used to drive the push-pull hook to move relative to the push-pull rail.

[0013] Furthermore, the mold is provided with hooks for fastening the push-pull hook.

[0014] Furthermore, the push-pull track includes a first track, a second track, and a second driving member. The first track is slidably disposed on the top of the trolley body and its extension direction is the same as or opposite to the first direction. The second track is slidably disposed on the top of the trolley body and its extension direction is the same as or opposite to the first direction. The second track and the first track are distributed at intervals. When the first track extends out of the trolley body and leaves a track gap, the second driving member is used to drive the second track to move towards the side closer to the first track to fill the track gap. The push-pull hook is slidably connected to the second track and the first track in sequence.

[0015] Furthermore, the push-pull hook includes a sliding block and a hook. The sliding block is slidably connected to the push-pull track and its movement direction is the same as or opposite to the first direction. The hook is rotatably disposed on the sliding block. The hook has a first state of engaging the hook and a second state of disengaging the hook. The first driving member is used to drive the sliding block to move relative to the push-pull track.

[0016] Furthermore, the push-pull hook also includes an electric push rod, which drives the hook to rotate relative to the sliding block, so that the hook can switch from the first state to the second state.

[0017] Furthermore, the mold changing device also includes a blocking member, which has a fixed end and a movable end. The fixed end is fixed to the trolley body, and the movable end can move relative to the fixed end to adjust the distance between it and the trolley body. When the mold is located in the two second conveyor wheel sets, the movable end has a first state of blocking the mold from sliding out of the two second conveyor wheel sets and a second state of allowing the mold to slide out of the two second conveyor wheel sets.

[0018] Furthermore, the mold changing device also includes two guide wheel sets, which are spaced apart on the top of the trolley body and form a guide space between them for guiding the mold through.

[0019] Furthermore, the press is fixed to the ground, the trolley body is movable on the ground, and the ground is provided with two spaced marking lines, forming a positioning space between the two marking lines for the trolley body to enter.

[0020] Furthermore, the mold changing device also includes at least three positioning components that are staggered with each other. Each positioning component includes a positioning block and a laser. The positioning block is located on the ground corresponding to the positioning space, and the laser is located at the bottom of the trolley body. When the trolley body enters the positioning space, the laser emitted by each laser hits its corresponding positioning block.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] This invention, by configuring components such as the press, support platform, and mold-changing trolley, allows for efficient mold changing. When the mold is placed on the two first conveyor wheel sets, the trolley body is moved to align with the press. Then, a push-pull mechanism pulls the mold from the two first conveyor wheel sets to the two second conveyor wheel sets. When the mold is on the two second conveyor wheel sets, the trolley body is moved to align with the press. Then, a push-pull mechanism pushes the mold from the two second conveyor wheel sets to the two first conveyor wheel sets. This structure eliminates the need for space-consuming structures like cable chains or sliding lines on the ground, resulting in a smaller footprint for the entire mold-changing device. Furthermore, the mold-changing trolley is more flexible, safer, and more convenient, and can travel anywhere in the factory, allowing for mold changing at any press location. This improved mobility and ease of practical application. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the mold changing device provided by the present invention;

[0024] Figure 2 for Figure 1 A magnified schematic diagram of part A in the middle section;

[0025] Figure 3 for Figure 1 A schematic diagram of the right-side structure shown;

[0026] Figure 4 This is a three-dimensional structural schematic diagram of an embodiment of the mold changing trolley provided by the present invention;

[0027] Figure 5 for Figure 4 A partially enlarged structural diagram of section B;

[0028] Figure 6 for Figure 4 A top view of the structure shown;

[0029] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure along the CC direction.

[0030] Reference numerals: 1. Press; 2. Support platform; 21. First conveyor wheel set; 3. Mold changing trolley; 31. Trolley body; 32. Second conveyor wheel set; 33. Push-pull machine; 331. Push-pull track; 3311. First track; 3312. Second track; 3313. Second drive component; 332. Push-pull hook; 3321. Sliding block; 3322. Hook; 3323. Electric push rod; 333. First drive component; 4. Blocking component; 41. Fixed end; 42. Movable end; 5. Guide wheel set; 51. Guide space; 6. Marking line; 61. Positioning space; 7. Positioning component; 71. Positioning block; 72. Laser; 8. Mold; 81. Hook. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the present invention, but are not intended to limit the present invention.

[0032] like Figures 1 to 7 As shown, the present invention provides a mold changing device for conveying mold 8, including a press 1, a support platform 2 and a mold changing trolley 3.

[0033] The support platform 2 is located on the press 1. The support platform 2 is provided with two symmetrically distributed first conveyor wheel sets 21, which are used to convey the mold 8.

[0034] The mold changing trolley 3 includes a trolley body 31, two second conveyor wheel sets 32, and a push-pull mechanism 33. The trolley body 31 is movable and is arranged opposite to the press 1. The two second conveyor wheel sets 32 are arranged on the trolley body 31 for conveying the mold 8. The second conveyor wheel sets 32 have the same conveying direction as the first conveyor wheel sets 21. The push-pull mechanism 33 is arranged on the trolley body 31 for pulling the mold 8 from the two first conveyor wheel sets 21 to the two second conveyor wheel sets 32 or for pushing the mold 8 from the two second conveyor wheel sets 32 to the two first conveyor wheel sets 21.

[0035] This invention, by setting up components such as the press 1, the support platform 2, and the mold changing trolley 3, allows the mold 8 to be placed on the two first conveyor wheel sets 21. The trolley body 31 is moved to align with the press 1, and then the push-pull mechanism 33 pulls the mold 8 from the two first conveyor wheel sets 21 to the two second conveyor wheel sets 32. When the mold 8 is located on the two second conveyor wheel sets 32, the trolley body 31 is moved to align with the press 1, and then the push-pull mechanism 33 pushes the mold 8 from the two second conveyor wheel sets 32 to the two first conveyor wheel sets 21. This structure eliminates the need for space-consuming structures like drag chains or sliding lines on the ground, resulting in a smaller footprint for the entire mold changing device. Furthermore, the mold changing trolley 3 is more flexible, safer, and more convenient, and can travel anywhere in the factory, allowing for mold changing at any location on the press 1, thus improving mobility and facilitating practical application.

[0036] Preferably, the top heights of the two first conveying wheel sets 21 and the two second conveying wheel sets 32 are the same. This design facilitates the switching and conveying of the mold 8 between the first conveying wheel sets 21 and the second conveying wheel sets 32, making the conveying process smoother and improving the conveying efficiency of the mold 8.

[0037] Preferably, the support platform 2 is located on top of the press 1, and the two second conveyor wheel sets 32 are located on top of the trolley body 31. This design facilitates practical application.

[0038] The second conveying wheel group 32 and the first conveying wheel group 21 have the same conveying direction, which means that the rolling direction of the rollers of the second conveying wheel group 32 is the same as that of the rollers of the first conveying wheel group 21. This design facilitates the conveying of the mold 8, and makes the entire mold changing device occupy less space and is safer during use.

[0039] The height of the trolley body 31 is adjustable.

[0040] To prevent the mold 8 from shifting position during transport, the transport direction of the first transport wheel set 21 is set to a first direction. The push-pull machine 33 includes a push-pull rail 331, a push-pull hook 332, and a first drive member 333. The push-pull rail 331 is located on the top of the trolley body 31, and the top of the push-pull rail 331 is lower than the top of the two second transport wheel sets 32. The push-pull hook 332 is slidably connected to the push-pull rail 331, and its movement direction is the same as or opposite to the first direction. The push-pull hook 332 is used to clamp the mold 8, and the first drive member 333 is used to drive the push-pull hook 332 to move relative to the push-pull rail 331. When there is only one push-pull machine 33, the position where the push-pull hook 332 clamps the mold 8 can be set at the center of the mold 8 to facilitate stable transport of the mold 8 and prevent the mold 8 from shifting position during transport. Preferably, there are two push-pull machines 33, and the two push-pull machines 33 are spaced apart on the trolley body 31. Specifically, the push-pull machine 33 can be set in three or more, as long as it is convenient for practical application. In practical application, when there are two push-pull machines 33, and the two first driving members 333 can synchronously drive their corresponding push-pull hook members 332 to move, after the push-pull hook members 332 clamp the mold 8, the two first driving members 333 can pull the mold 8 from the two first conveying wheel sets 21 to the two second conveying wheel sets 32 or push the mold 8 from the two second conveying wheel sets 32 to the two first conveying wheel sets 21. With the cooperation of the two first conveying wheel sets 21 and the two second conveying wheel sets 32, the mold 8 will not deviate from its original direction during the movement, which is convenient for accurately conveying the mold 8. After the mold 8 is conveyed, there is no need to adjust the position of the mold 8 through a separate process step. In particular, when the mold 8 is conveyed from one press 1 to another press 1, there is almost no need to adjust the position of the mold 8, which saves time and effort and is convenient for practical application.

[0041] To prevent the mold 8 from shifting position during transport, the mold 8 is provided with hooks 81 for engaging with the push-pull hooks 332. Preferably, there are two hooks 81, spaced apart from each other on the mold 8. When the two push-pull hooks 332 engage with their corresponding hooks 81, the mold 8 can be pulled from the two first conveying wheel sets 21 to the two second conveying wheel sets 32 or pushed from the two second conveying wheel sets 32 to the two first conveying wheel sets 21 by the two first driving members 333. The combined transport action of the two first conveying wheel sets 21 and the two second conveying wheel sets 32 ensures that the mold 8 does not deviate from its original direction during movement, facilitating accurate transport of the mold 8. Subsequent adjustments to the position of the mold 8 are almost unnecessary, saving time and effort and facilitating practical application.

[0042] To prevent the mold 8 from shifting position during transport, the push-pull track 331 includes a first track 3311, a second track 3312, and a second drive member 3313. The first track 3311 is slidably disposed on the top of the trolley body 31 and its extension direction is the same as or opposite to the first direction. The second track 3312 is slidably disposed on the top of the trolley body 31 and its extension direction is the same as or opposite to the first direction. The second track 3312 and the first track 3311 are distributed at intervals. When the first track 3311 partially extends out of the trolley body 31 and leaves a track gap, the second drive member 3313 is used to drive the second track 3312 to move towards the side closer to the first track 3311 to fill the track gap. The push-pull hook 332 is slidably connected to the second track 3312 and the first track 3311 in sequence. Setting the first track 3311 and the second track 3312 facilitates increasing the length of the push-pull track 331, allowing the push-pull hook 332 to extend a greater distance. This makes it easier for the two push-pull hooks 332 to hook onto their corresponding hooks 81, and also makes the mold 8 more stable during the pulling process. The position of the mold 8 hardly needs to be adjusted afterward, saving time and effort and making it convenient for practical applications.

[0043] To prevent the mold 8 from shifting position during transport, the push-pull hook 332 includes a sliding block 3321 and a hook 3322. The sliding block 3321 is slidably connected to the push-pull track 331, and its movement direction is the same as or opposite to the first direction. The hook 3322 is rotatably mounted on the sliding block 3321. The hook 3322 has a first state of engaging the hook 81 and a second state of disengaging the hook 81. The first driving member 333 is used to drive the sliding block 3321 to move relative to the push-pull track 331. The push-pull hook 332 also includes an electric push rod 3323, which is used to drive the hook 3322 to rotate relative to the sliding block 3321, so that the hook 3322 can switch from the first state to the second state. In practical applications, the sliding block 3321 is first moved towards the hook 3322 relative to the push-pull track 331 by the third driving component, and then the hook 3322 is adjusted to the first state. After that, the sliding block 3321 is moved away from the hook 3322 relative to the push-pull track 331 by the third driving component, so as to pull the mold 8 from the two first conveying wheel sets 21 to the two second conveying wheel sets 32. Then, the hook 3322 is adjusted to the second state, and the conveying of the mold 8 is completed. During the conveying process, the position of the mold 8 can be avoided. The electric push rod 3323 is set to switch the hook 3322 from the first state to the second state, which is convenient for practical applications.

[0044] To prevent the mold 8 from slipping off the two second conveyor roller sets 32, the mold changing device further includes a blocking member 4. The blocking member 4 has a fixed end 41 and a movable end 42. The fixed end 41 is fixed to the trolley body 31, and the movable end 42 can move relative to the fixed end 41 to adjust the distance between it and the trolley body 31. When the mold 8 is located on the two second conveyor roller sets 32, the movable end 42 has a first state that prevents the mold 8 from sliding off the two second conveyor roller sets 32 and a second state that allows the mold 8 to slide off the two second conveyor roller sets 32. This design can prevent the mold 8 from slipping off the two second conveyor roller sets 32, facilitating the parking and conveying of the mold 8.

[0045] To further prevent the mold 8 from shifting position during transport, the mold changing device also includes two guide wheel sets 5. These two guide wheel sets 5 are spaced apart on the top of the trolley body 31, forming a guide space 51 between them for guiding the mold 8 through. When the mold 8 is pulled from the two first conveying wheel sets 21 to the two second conveying wheel sets 32, both sides of the mold 8 can contact the two guide wheel sets 5, causing the rollers of the guide wheel sets 5 to rotate. This design further prevents the mold 8 from shifting position during transport, almost eliminating the need for subsequent adjustments to the mold 8's position, saving time and effort, and facilitating practical application.

[0046] To accurately adjust the relative position of the trolley body 31 and the press 1, the press 1 is fixed to the ground, and the trolley body 31 is movably mounted on the ground. Two spaced-apart marker lines 6 are provided on the ground, forming a positioning space 61 between the two marker lines 6 for the trolley body 31 to enter. The mold changing device also includes at least three staggered positioning components 7. Each positioning component 7 includes a positioning block 71 and a laser 72. The positioning block 71 is located on the ground corresponding to the positioning space 61, and the laser 72 is located at the bottom of the trolley body 31. When the trolley body 31 enters the positioning space 61, the laser emitted by each laser 72 strikes its corresponding positioning block 71. In practical applications, the trolley body 31 undergoes two positioning operations, as follows:

[0047] (1) First positioning: First, move the trolley body 31 and make it enter the positioning space 61;

[0048] (2) Second positioning: When the trolley body 31 enters the positioning space 61, the laser emitted by each laser 72 hits its corresponding positioning block 71, and at least three positioning components 7 are staggered to each other, which can accurately determine the position of the trolley body 31 so as to facilitate the subsequent transport of the mold 8.

[0049] In particular, in order to improve the conveying efficiency of mold 8, after the mold 8 has been conveyed, in order to avoid the need to adjust the position of mold 8 through a separate process step, the accuracy of mold 8 conveying is particularly important. When conveying mold 8 from one press 1 to another press 1, the relative position of the trolley body 31 and the press 1 must be very accurate to ensure that the position of mold 8 hardly needs to be adjusted later. Therefore, the present invention provides the above-mentioned double positioning structure to accurately adjust the relative position of the trolley body 31 and the press 1, so as to improve the conveying efficiency of mold 8.

[0050] Compared with the prior art, the mold changing device provided by the present invention has the following advantages:

[0051] This invention, by setting up components such as the press 1, the support platform 2, and the mold changing trolley 3, allows the mold 8 to be placed on the two first conveyor wheel sets 21. The trolley body 31 is moved to align with the press 1, and then the push-pull mechanism 33 pulls the mold 8 from the two first conveyor wheel sets 21 to the two second conveyor wheel sets 32. When the mold 8 is located on the two second conveyor wheel sets 32, the trolley body 31 is moved to align with the press 1, and then the push-pull mechanism 33 pushes the mold 8 from the two second conveyor wheel sets 32 to the two first conveyor wheel sets 21. This structure eliminates the need for space-consuming structures like drag chains or sliding lines on the ground, resulting in a smaller footprint for the entire mold changing device. Furthermore, the mold changing trolley 3 is more flexible, safer, and more convenient, and can travel anywhere in the factory, allowing for mold changing at any location on the press 1, thus improving mobility and facilitating practical application.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A die changing apparatus for conveying a die, characterized by, The application relates to a die changing device for a press machine. The device comprises: a press machine; a supporting table arranged on the press machine, the supporting table being provided with two first conveying wheel groups symmetrically arranged and used for conveying the die; a die changing trolley, the die changing trolley comprising a trolley body, two second conveying wheel groups and a push-pull machine, the trolley body being movable and arranged opposite to the press machine, the two second conveying wheel groups being arranged on the trolley body and used for conveying the die, the conveying direction of the second conveying wheel groups being the same as that of the first conveying wheel groups, and the push-pull machine being arranged on the trolley body and used for pulling the die from the two first conveying wheel groups to the two second conveying wheel groups or pushing the die from the two second conveying wheel groups to the two first conveying wheel groups; the conveying direction of the first conveying wheel groups is the first direction, the push-pull machine comprises a push-pull track, a push-pull hook and a first driving element, the push-pull track being arranged on the top of the trolley body, the top of the push-pull track being lower than that of the two second conveying wheel groups, the push-pull hook being slidably connected with the push-pull track and moving in the same direction or opposite direction of the first direction, the push-pull hook being used for clamping the die, and the first driving element being used for driving the push-pull hook to move relative to the push-pull track; 2. The die changing apparatus of claim 1 wherein, the push-pull track comprises a first track, a second track and a second driving element, the first track being slidably arranged on the top of the trolley body and extending in the same direction or opposite direction of the first direction, the second track being slidably arranged on the top of the trolley body and extending in the same direction or opposite direction of the first direction, the second track being spaced apart from the first track, when the first track partially extends out of the trolley body and leaves a track gap, the second driving element is used for driving the second track to move towards the side close to the first track to fill the track gap, and the push-pull hook is slidably connected with the second track and the first track in sequence.

3. The die changing apparatus of claim 2 wherein, The die is provided with a hook used for buckling the push-pull hook.

4. The die changing apparatus of claim 3 wherein, The push-pull hook comprises a sliding block and a hook, the sliding block being slidably connected with the push-pull track and moving in the same direction or opposite direction of the first direction, the hook being rotatably arranged on the sliding block, the hook having a first state of buckling the hook and a second state of releasing the buckling of the hook, and the first driving element being used for driving the sliding block to move relative to the push-pull track.

5. The die changing apparatus of claim 1 wherein, The push-pull hook further comprises an electric push rod, the electric push rod being used for driving the hook to rotate relative to the sliding block, so that the hook is switched from the first state to the second state. The die changing device further comprises a blocking element, the blocking element having a fixed end and a movable end, the fixed end being fixedly arranged on the trolley body, the movable end being movable relative to the fixed end to adjust the distance between the movable end and the trolley body, when the die is arranged on the two second conveying wheel groups, the movable end has a first state of blocking the die from sliding out of the two second conveying wheel groups and a second state of allowing the die to slide out of the two second conveying wheel groups.

6. The die changing apparatus of claim 1 wherein, The die changing device further comprises two guide wheel sets, which are arranged at the top of the trolley body in a spaced manner and form a guide space between them for guiding the die.

7. The die changing apparatus of claim 1 wherein, The press is fixed to the ground, the trolley body is movably arranged on the ground, and the ground is provided with two spaced apart marking lines, which form a positioning space for the trolley body to enter.

8. The die changing apparatus of claim 7 wherein, The die changing device further comprises at least three positioning assemblies arranged in a staggered manner, each of which comprises a positioning block and a laser, the positioning block is arranged on the ground corresponding to the positioning space, and the laser is arranged at the bottom of the trolley body, when the trolley body enters the positioning space, the laser emitted by each laser hits the corresponding positioning block.

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