Sand core production line

Abstract

The invention provides a sand core production line which comprises a loading system, a sand core conveying system and a sand core conveying system, the loading system comprises a first transfer structure and a supporting structure, and the first transfer structure is used for transferring a sand core to the supporting structure; the transporting device comprises a transporting structure, a bearing structure and a third transferring structure, a plurality of mounting parts are arranged on the bearing structure and matched with the sand cores, and the third transferring structure is arranged in a turnover mode and can be used for transporting the sand cores. The third transfer structure is used for overturning the sand core and transferring the overturned sand core to the bearing structure, and the transportation structure is movably arranged so as to carry the bearing structure; and the core setting system comprises a second transfer structure, the second transfer structure is movably arranged, and the second transfer structure is used for taking away the sand core on the bearing structure. According to the technical scheme, the technical problem that in the prior art, the efficiency of manual sand core carrying is low can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of cylinder core lowering, in particular to a sand core production line. Background Art

[0002] At present, in the production and manufacturing process of cylinder blocks, sand cores are usually needed to form the inner cavity, holes and parts of the casting shape that cannot be sanded. Sand cores are usually mixed with casting sand, resin and some additives in a certain proportion to form a solid structure with a special shape. In the actual production and manufacturing process, when the sand core is completed and taken out of the kiln, it needs to be transferred to the next production step by transportation.

[0003] However, in the existing sand core handling process, the sand core is usually manually handled, which results in low efficiency in core placement and cannot meet efficiency requirements. Summary of the invention

[0004] The main purpose of the present invention is to provide a sand core production line to solve the technical problem of low efficiency of manual sand core transportation in the prior art.

[0005] In order to achieve the above object, the present invention provides a sand core production line, comprising:

[0006] A loading system, comprising a first transfer structure and a support structure, wherein the first transfer structure is used to transfer the sand core to the support structure;

[0007] The transport device comprises a transport structure, a bearing structure and a third transfer structure, wherein the bearing structure is provided with a plurality of mounting parts, the mounting parts are adapted to the sand core, the third transfer structure is arranged flippably, the third transfer structure is used to flip the sand core and transfer the flipped sand core to the bearing structure, and the transport structure is movably arranged to carry the bearing structure;

[0008] The core setting system comprises a second transfer structure, which is movably arranged and used for taking away the sand core on the bearing structure.

[0009] Furthermore, the charging system further comprises:

[0010] A first levelness detection member is disposed on the first transfer structure, and the first levelness detection member is used to detect the levelness of the furnace tray carrying the sand core;

[0011] a first image acquisition component, disposed on the first transfer structure, and used for acquiring an image of the sand core on the furnace-out tray;

[0012] a first image recognition module, connected to the first image acquisition component, and configured to determine whether the quality of the sand core is qualified according to the image of the sand core;

[0013] The first control module, the first level detection component, the first image recognition module and the first transfer structure are all connected to the first control module; when the first level detection component detects that the horizontal state of the furnace tray is qualified and the first image recognition module determines that the quality of the sand core is qualified, the first control module controls the first transfer structure to move to the furnace tray and transfers the sand core on the furnace tray.

[0014] Furthermore, the first image recognition module is also used to determine the type of the sand core based on the image of the sand core, the first control module obtains the clamping force suitable for the type of the sand core based on the type of the sand core, and controls the first transfer structure to clamp the sand core with the clamping force suitable for the type of the sand core.

[0015] Furthermore, the supporting structure has an avoidance gap, the first transfer structure is used to transfer the sand core to the supporting structure through the top of the avoidance gap and make at least part of the sand core located in the avoidance gap, the third transfer structure moves to the avoidance gap through the bottom of the avoidance gap and clamps the sand core, and the sand core is flipped and transferred by the third transfer structure.

[0016] Furthermore, the core setting system further comprises:

[0017] a second image acquisition component, disposed on the second transport structure, and used for acquiring an image of the sand core;

[0018] a second image recognition module connected to the second image acquisition component, and the second image recognition module is used to determine the type of the sand core according to the image of the sand core;

[0019] The second control module, the second image recognition module and the second transfer structure are all connected to the second control module, and the second control module controls the clamping force of the second transfer structure according to the type of the sand core.

[0020] Furthermore, the core lowering system further comprises a position detection component, which is used to detect the position of the sand core on the supporting structure and the position of the sand box, and the position detection component is connected to the second control module, and the second control module controls the second transfer structure to clamp the sand core and transfer the sand core to the sand box according to the position information detected by the position detection component; and / or,

[0021] The lower core system also includes a second level detection component arranged on the second transfer structure, and the second level detection component is used to detect the level of the sand core on the supporting structure; the transfer part of the second transfer structure is rotatably arranged, and the transfer part is connected to the sand core. The second control module controls the second transfer structure to adjust the posture of the transfer part of the second transfer structure according to the deviation of the level of the sand core, so as to adjust the level deviation of the sand core within an acceptable range.

[0022] Furthermore, the first transfer structure and / or the second transfer structure is a transfer device, and the transfer device includes:

[0023] A driving arm, wherein the driving arm is movably arranged;

[0024] At least two fixture assemblies are arranged at intervals, at least one of the two fixture assemblies is adapted to the first sand core, and at least another of the two fixture assemblies is adapted to the second sand core;

[0025] Wherein, the driving arm has a first clamping position and a second clamping position; when the driving arm is in the first clamping position, at least one of the two clamping assemblies is arranged opposite to the first sand core; when the driving arm is in the second clamping position, at least another one of the two clamping assemblies is arranged opposite to the second sand core.

[0026] Furthermore, each of the clamp assemblies comprises a connecting frame and a plurality of clamping members, and the plurality of clamping members are all detachably arranged on the connecting frame.

[0027] Furthermore, the fixture assembly further comprises:

[0028] A first clamping member, disposed on the connecting frame, wherein the first clamping member comprises at least two movably disposed first clamping arms, and the at least two first clamping arms can move toward or away from each other;

[0029] Wherein, the first clamping member has at least two first abutting portions arranged opposite to each other, at least two of the first abutting portions are respectively connected to at least two of the first clamping arms, the first abutting portion has a first contact surface in contact with the sand core, and the first abutting portion is made of an elastic or flexible material so that the cross-sectional shape of the first contact surface can be adjustably set according to the surface shape of the sand core; and / or,

[0030] The first clamping member has at least two second abutting portions that are arranged opposite to each other, at least two of the second abutting portions are respectively connected to at least two of the first clamping arms, and the second abutting portion has a clamping groove that is matched with the sand core.

[0031] Furthermore, the fixture assembly comprises:

[0032] The second clamping member is arranged on the connecting frame, the second clamping member protrudes from the connecting frame, and a tensioning part is arranged at one end of the second clamping member away from the connecting frame. The cross-sectional size of the tensioning part can be adjusted to be interference fit with the matching hole of the sand core.

[0033] Furthermore, the fixture assembly further comprises:

[0034] A clamping assembly is arranged on the connecting frame, and the clamping assembly includes a pressure member and a driving member that are drive-connected. The driving member drives the pressure member to be movably arranged in a direction close to or away from the sand core. The end of the pressure member away from the connecting frame has a third abutment portion, and the third abutment portion abuts against the sand core.

[0035] Furthermore, at least two of the clamp assemblies are arranged on the connecting frame at a preset angle, and the connecting frame is rotatably arranged so that one of the at least two clamp assemblies is opposite to the transportation device.

[0036] Further, the third transfer structure comprises a transport arm and a transport frame connected by driving, and the transport frame cooperates with the bearing structure; wherein, along the circumference of the transport frame, a plurality of locking members and positioning members are arranged on the transport frame, and the positioning member is arranged protruding from the transport frame, and one end of the positioning member away from the transport frame is adapted to the to-be-positioned portion of the bearing structure; the locking member has a movably arranged clamping portion, and the clamping portion is adapted to and relatively arranged to the to-be-matched portion of the bearing structure; and / or,

[0037] The support structure is arranged on the side of the first transfer structure, and a plurality of support brackets are arranged on the support structure, and each of the support brackets is used to match the sand core.

[0038] By applying the technical solution of the present invention, the loading system, the transport device and the core loading system can be used to automatically load the sand core, which has a high degree of automation and high efficiency, and realizes large-scale automated production. In addition, the sand core production line can also realize safer operation of the sand core, improve the operation accuracy, and avoid the risk of manually loading the wrong sand core. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0040] Figure 1 A schematic structural diagram of a clamp assembly provided according to an embodiment of the present invention is shown;

[0041] Figure 2 A schematic structural diagram of another clamp assembly provided according to an embodiment of the present invention is shown;

[0042] Figure 3 A schematic structural diagram of another clamp assembly provided according to an embodiment of the present invention is shown;

[0043] Figure 4 A schematic structural diagram of a core setting system provided according to an embodiment of the present invention is shown;

[0044] Figure 5 A schematic diagram of the structure of a transport device provided according to an embodiment of the present invention is shown;

[0045] Figure 6 It shows a schematic structural diagram of a transport frame provided according to an embodiment of the present invention;

[0046] Figure 7 A schematic diagram of a top view of a bearing structure provided according to an embodiment of the present invention is shown;

[0047] Figure 8 A schematic structural diagram of a plurality of load-bearing structures stacked according to an embodiment of the present invention is shown;

[0048] Fig. 9 A schematic structural diagram of a support structure provided according to an embodiment of the present invention is shown;

[0049] Fig.10 An operation flow chart of a charging system provided according to an embodiment of the present invention is shown;

[0050] Fig.11 A core placing flow chart of a core placing system provided according to an embodiment of the present invention is shown.

[0051] The above drawings include the following reference numerals:

[0052] 10. Driving arm;

[0053] 20. Clamp assembly; 21. Connecting frame; 22. First clamping member; 221. First clamping arm; 222. First abutting portion; 223. Second abutting portion; 23. Second clamping member; 24. Pressing assembly; 241. Pressing member; 242. Driving member;

[0054] 30. Loading system; 31. First transfer structure; 32. Support structure; 321. Support frame;

[0055] 40. Core lowering system; 41. Second transfer structure;

[0056] 50. transport device; 51. bearing structure; 511. mounting portion; 52. third transport structure; 521. transport arm; 522. transport frame; 5221. locking member; 5222. positioning member;

[0057] 60. Surface drying furnace conveying mechanism; 70. Surface drying furnace. DETAILED DESCRIPTION

[0058] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0059] like Figures 1 to 9 As shown, an embodiment of the present invention provides a sand core production line, which includes: a loading system 30, a transportation device 50 and a core setting system 40. The loading system 30 includes a first transfer structure 31 and a support structure 32. The first transfer structure 31 is used to transfer the sand core to the support structure 32. The transportation device 50 includes a transportation structure, a bearing structure 51 and a third transfer structure 52. The bearing structure 51 is provided with a plurality of mounting parts 511, and the mounting parts 511 are adapted to the sand core. The third transfer structure 52 is flippable. The third transfer structure 52 is used to flip the sand core and transfer the flipped sand core to the bearing structure 51. The transportation structure is movably arranged to carry the bearing structure 51. The core setting system 40 includes a second transfer structure 41, which is movably arranged and used to take away the sand core on the bearing structure 51.

[0060] The sand core production line provided by the embodiment of the present invention can automatically realize the sand core unloading operation through the cooperation of the loading system 30, the transportation device 50 and the core unloading system 40, with high automation and efficiency, and realizes large-scale automated production. In addition, the sand core production line can also realize safer operation of the sand core, improve the operation accuracy, and avoid the risk of manually placing the wrong sand core.

[0061] Specifically, there may be multiple bearing structures 51, and multiple bearing structures 51 may be stacked. Specifically, the bearing structure 51 may be a bearing tray. The transport structure may be a transfer vehicle, specifically an AGV transfer vehicle. The transfer vehicle may be operated between the kiln discharge area where the charging system 30 is located and the core setting area where the core setting system 40 is located according to a set route. The stacked bearing racks may be formed into a "flat warehouse" to effectively realize the storage and first-in-first-out of sand cores.

[0062] In this embodiment, the loading system 30 also includes: a first level detection member, which is arranged on the first transfer structure 31, and the first level detection member is used to detect the level of the furnace tray carrying the sand core; a first image acquisition member, which is arranged on the first transfer structure 31, and the first image acquisition member is used to acquire the image of the sand core on the furnace tray; a first image recognition module, which is connected to the first image acquisition member, and the first image recognition module is used to determine whether the quality of the sand core is qualified according to the image of the sand core; a first control module, and the first level detection member, the first image recognition module and the first transfer structure 31 are all connected to the first control module; when the first level detection member detects that the horizontal state of the furnace tray is qualified and the first image recognition module determines that the quality of the sand core is qualified, the first control module controls the first transfer structure 31 to move to the furnace tray and transfer the sand core on the furnace tray. In this way, it is convenient to improve the operation accuracy during the sand core transfer process.

[0063] Specifically, the out-of-furnace tray is transported by the surface drying furnace transport mechanism 60 , and the surface drying furnace transport mechanism 60 is used to transport the sand cores flowing out of the surface drying furnace 70 .

[0064] Specifically, the first image recognition module is also used to determine the type of the sand core according to the image of the sand core, and the first control module obtains the clamping force that matches the type of the sand core according to the type of the sand core, and controls the first transfer structure 31 to clamp the sand core with the clamping force that matches the type of the sand core. With such a setting, it is easy to control the accuracy of the clamping force of the first transfer structure 31, so that the first transfer structure 31 can better match the sand core, avoid the sand core falling off the first transfer structure 31 due to the clamping force of the first transfer structure 31 being too small, and avoid the sand core being cracked or damaged due to the clamping force of the first transfer structure 31 being too large.

[0065] Specifically, the clamping force here mainly refers to the size of the clamping force.

[0066] Specifically, the first control module controls the cylinder of the first transfer mechanism so that the first transfer mechanism 31 clamps the sand core with a clamping force that is suitable for the type of the sand core.

[0067] In this embodiment, the support structure 32 has an escape gap, the first transfer structure 31 is used to transfer the sand core to the support structure 32 through the upper side of the escape gap and place at least part of the sand core at the escape gap, the third transfer structure 52 moves to the escape gap through the lower side of the escape gap and clamps the sand core, and the sand core is turned over and transferred by the third transfer structure 52. In this way, the sand core can be turned over and transferred smoothly to adjust the sand core to a suitable state.

[0068] Specifically, after the first transfer structure 31 transfers the sand core to the support structure 32, the sand core is supported above the support structure 32, a portion of the sand core is in contact with the support structure 32, and another portion of the sand core is located above a portion of the sand core; when the third transfer structure 52 moves from below the avoidance gap to the avoidance gap and clamps the sand and then flips the sand core, a portion of the sand core will be located above another portion of the sand core, thereby realizing the flipping of the sand core.

[0069] Specifically, the core lowering system 40 also includes: a second image acquisition component, which is arranged on the second transfer structure 41, and the second image acquisition component is used to acquire the image of the sand core; a second image recognition module, which is connected to the second image acquisition component, and the second image recognition module is used to determine the type of the sand core according to the image of the sand core; a second control module, and the second image recognition module and the second transfer structure 41 are both connected to the second control module, and the second control module controls the clamping force of the second transfer structure 41 according to the type of the sand core. In this way, the clamping force can be accurately adjusted according to the type of the sand core, so that the second transfer structure 41 can better adapt to the sand core, avoid the sand core from falling off the second transfer structure 41 due to the clamping force of the second transfer structure 41 being too small, and avoid the sand core from being cracked or damaged due to the clamping force of the second transfer structure 41 being too large.

[0070] Specifically, the core lowering system 40 also includes a position detection member, which is used to detect the position of the sand core on the supporting structure 51 and the position of the sand box. The position detection member is connected to the second control module, and the second control module controls the second transfer structure 41 to clamp the sand core and transfer the sand core to the sand box according to the position information detected by the position detection member. With such a setting, it is easy to improve the transfer position accuracy of the second transfer structure 41, so as to accurately clamp the sand core and accurately transfer the sand core to the sand box.

[0071] Specifically, the core lowering system 40 also includes a second level detection member arranged on the second transfer structure 41, and the second level detection member is used to detect the level of the sand core on the supporting structure 51; the transfer part of the second transfer structure 41 is rotatably arranged, and the transfer part is connected to the sand core, and the second control module controls the second transfer structure 41 to adjust the posture of the transfer part of the second transfer structure 41 according to the deviation of the level of the sand core, so as to adjust the deviation of the level of the sand core within the qualified range. With such a structural setting, it is easy to detect the level of the sand core, so as to adjust the deviation of the level of the sand core within the qualified range, thereby facilitating the improvement of the clamping accuracy of the sand core.

[0072] Specifically, if Fig.10The figure shows the operation flow chart of the loading system 30. The track line pallet outputs a signal to the kiln robot, which rotates onto the pallet, and uses a camera to take pictures and laser ranging to perform type identification and pallet horizontal positioning. After being determined to be qualified, the robot is guided to select a suitable coring force according to different types of sand cores, and the sand cores are placed on the flip rack in turn, the cores are taken from the flip rack, and the sand cores are placed on a special pallet.

[0073] like Fig.11 The figure shows the core setting flow chart of the core setting system 40. The specific process is as follows: the pallet group is divided by the clamp of the third transfer structure 52, and the carrying pallet with two sets of sand cores is placed on the conveyor line, and transported in the direction of the core setting robot (corresponding to the core setting system 40). The core setting robot takes pictures to determine the type of sand core. If it matches the current model, the cylinder is controlled by the PLC, and the direction of the sand core is determined according to the visual recognition result through the second transfer structure 41, and different types of sand cores are clamped separately as required. The seat core clamped by the first clamp and the waterway core clamped by the second clamp are placed in the mold cavity in sequence, and finally the small round hole core is placed separately by the clamping assembly, and the core setting parameters are called by the part number identified by taking pictures to complete the core setting operation. After the core setting is completed, the laser distance measurement confirms the balance state of the sand core, and the posture of the sand core is corrected according to the distance measurement result.

[0074] The core setting process is carried out by a core setting robot. In order to meet different process requirements, a loading system for additional materials is added. The cold iron sleeve is supplied through the feeding system and taken by the second clamp. After the core setting action is completed, a photo is taken to confirm the placement of the additional materials of the sand core. Different placement parameters are called according to different additional materials. After loading is completed, another photo is taken to confirm that the additional materials are placed in place. The load chuck can be changed to an expansion sleeve, a conformable rubber sleeve, an electromagnet, etc. according to needs. After the core setting is completed, the empty load pallet is transported by the conveyor line and returned to the pallet handling robot (corresponding to the third transfer structure 52). The pallet handling robot places it on the transfer station of the sand core. After the required number of stacking layers is reached, it is transported to the flat warehouse by the AGV transfer cart to complete the core setting cycle.

[0075] Specifically, the first transfer structure 31 and / or the second transfer structure 41 is a transfer device. Figures 1 to 3 In the first embodiment of the present invention, a transfer device is provided, which includes a driving arm 10 and at least two clamp assemblies 20 arranged at intervals. The driving arm 10 is movably arranged, and one of the at least two clamp assemblies 20 is adapted to a first object to be transported, and the other of the at least two clamp assemblies 20 is adapted to a second object to be transported. The driving arm 10 has a first clamping position and a second clamping position; when the driving arm 10 is in the first clamping position, one of the at least two clamp assemblies 20 is arranged opposite to the first object to be transported; when the driving arm 10 is in the second clamping position, the other of the at least two clamp assemblies 20 is arranged opposite to the second object to be transported.

[0076] With such a setting, in the present embodiment, one of the at least two clamp assemblies 20 is adapted to the first workpiece to be transported, and the other is adapted to the second workpiece to be transported. In this way, when the driving arm 10 switches between the first clamping position and the second clamping position so that at least one of the at least two clamp assemblies 20 or the other of the at least two clamp assemblies 20 is directed toward the workpiece to be transported, the need to transport different workpieces to be transported can be met, thereby replacing the manual handling operation in the prior art with mechanical switching, thereby effectively avoiding the situation of artificial misalignment of sand cores (corresponding to the workpiece to be transported), thereby solving the technical problem of low accuracy of manual handling of sand cores in the prior art.

[0077] In this embodiment, each clamp assembly 20 includes a connecting frame 21 and a plurality of clamping members, and the plurality of clamping members are detachably arranged on the connecting frame 21. With such an arrangement, through the plurality of clamping members that can be switched, different combinations of clamping members can be selected according to the structure and clamping position of the actual sand core to better match the sand core, thereby making it easier for the clamp assembly 20 to carry the sand core.

[0078] Specifically, the clamp assembly 20 further includes a first clamping member 22, which is disposed on the connecting frame 21. The first clamping member 22 includes at least two movably disposed first clamping arms 221, and the at least two first clamping arms 221 can move toward or away from each other. With such a configuration, the stability of the sand core clamping can be improved by at least two first clamping arms 221.

[0079] The first clamping member 22 has at least two first abutting portions 222 arranged opposite to each other, and the at least two first abutting portions 222 are respectively connected to at least two first clamping arms 221. The first abutting portion 222 has a first contact surface that contacts the object to be transported, and the first abutting portion 222 is made of an elastic or flexible material so that the cross-sectional shape of the first contact surface can be adjusted according to the surface shape of the object to be transported. With such a setting, the first abutting portion 222 whose shape is adjustable according to the sand core can better fit the surface of the sand core, thereby improving the stability of the first clamping member 22 when clamping the sand core.

[0080] Alternatively, the first clamping member 22 has at least two second abutting portions 223 arranged opposite to each other, the at least two second abutting portions 223 are respectively connected to at least two first clamping arms 221, and the second abutting portions 223 have a clamping groove, which is adapted to the object to be transported. With such an arrangement, the sand core can be clamped by the arrangement of the clamping groove, and the clamping effect of the first clamping member 22 can be enhanced to a certain extent while ensuring the strength of the first clamping member 22.

[0081] Alternatively, the first abutting portion 222 and the second abutting portion 223 may be provided on the first clamping member 22 at the same time. It should be noted that this embodiment can be understood as providing the first abutting portion 222 and the second abutting portion 223 respectively on at least two clamping assemblies 20 disposed at intervals. With such a configuration, a more suitable abutting portion structure can be adaptively provided according to the actual use of different clamping assemblies 20, thereby further improving the clamping effect of the first clamping member 22.

[0082] In this embodiment, the clamp assembly 20 includes a second clamping member 23, which is arranged on the connecting frame 21, and the second clamping member 23 protrudes from the connecting frame 21. A tensioning portion is arranged at one end of the second clamping member 23 away from the connecting frame 21, and the cross-sectional size of the tensioning portion is adjustable to be interference-fitted with the matching hole of the workpiece to be transported. With such a setting, when clamping the hole structure of the sand core, the tensioning portion with an adjustable cross-sectional size extends into the hole structure and increases the size to be interference-fitted with the matching hole of the workpiece to be transported, so that the sand core can be more stably arranged on the second clamping member 23, thereby improving the stability of the clamp assembly 20 when clamping the sand core.

[0083] Specifically, the clamp assembly 20 also includes a clamping assembly 24, which is arranged on the connecting frame 21. The clamping assembly 24 includes a pressure member 241 and a driving member 242 that are connected by driving. The driving member 242 drives the pressure member 241 to be movably arranged in a direction close to or away from the object to be transported. The end of the pressure member 241 away from the connecting frame 21 has a third abutment portion, and the third abutment portion abuts against the object to be transported. With such a setting, the friction between the sand core and the clamp assembly 20 can be increased by pressing the pressure member 241 on the sand core, so that the sand core is clamped on the clamp assembly 20 more stably; and the pressure can also be applied to the sand core by the clamp assembly 24 when the sand core is unloaded, so that the sand core can enter the mold cavity better.

[0084] In this embodiment, at least two clamp assemblies 20 are arranged on the connecting frame 21 at a preset angle, and the connecting frame 21 is rotatably arranged so that one of the at least two clamp assemblies 20 is opposite to the transport device 50. With such an arrangement, it is easier to switch the clamping of different sand core structures by the clamp assembly 20, thereby making it easier for the transport device to transport the sand core. It should be noted that the preset angle can preferably be 90° or 180°.

[0085] like Figures 4 to 7In the second embodiment of the present invention, a production line is provided, which includes a loading system 30 and a core setting system 40 arranged in sequence, the loading system 30 includes a first transfer structure 31, and the core setting system 40 includes a second transfer structure 41. The first transfer structure 31 is used for the loading operation of the sand core in the loading system 30, and the second transfer structure 41 is used for the core setting operation in the core setting system 40. The first transfer structure 31 is the transfer device provided in the first embodiment; or the second transfer structure 41 is the transfer device provided in the first embodiment. Alternatively, the first transfer structure 31 and the second transfer structure 41 are both the transfer devices provided in the first embodiment.

[0086] In one implementation of this embodiment, the first transfer structure 31 is the transfer device provided in Example 1, such as Figure 1 As shown, three groups of clamp assemblies 20 arranged at an angle are provided on the first transfer structure 31. In combination with the sand core structure, the clamping position is different. When clamping the sand core hole structure, the second clamping member 23 provided with a tensioning portion is selected for clamping; when clamping the sand core cylindrical core head structure, the first clamping member 22 provided with a second abutment portion 223 can be selected, and the circular inner side and the two sides are opened and closed for clamping; for clamping irregular curved surfaces, a first abutment portion 222 whose shape can be adjusted with the sand core can be provided on the first clamping member 22, and the inner side can be opened and closed with the shape for clamping; in order to stabilize the balance of the sand core, a clamping assembly 24 can be selected on the surface of the sand core. The specific setting can select a variety of collocation combinations of chucks according to the structure of the sand core and the clamping position, so as to clamp different sand cores.

[0087] In another implementation of this embodiment, the second transfer structure 41 is the transfer device provided in the first embodiment, such as Figure 2 As shown, the second transfer structure 41 is provided with two groups of clamp assemblies 20 arranged at an angle. The control cylinder clamps the seat core sand core and the waterway sand core respectively through multiple groups of different first clamping members 22, and places the clamped seat core sand core and the waterway sand core in the mold cavity to be formed in a predetermined order, and each pressing assembly 24 applies a force of 30 Newtons downward to ensure that the lower core is in place, and finally, the small round hole core is placed by one group of first clamping members 22 alone, and the pressing assembly 24 applies a force of 10 Newtons to press it into place.

[0088] In another implementation of this embodiment, the second transfer structure 41 is the transfer device provided in the first embodiment, such as Figure 3 As shown, the second transfer structure 41 is provided with two groups of clamp assemblies 20 arranged at an angle. The control cylinder clamps the water channel core and the cold iron sleeve through multiple groups of different first clamping members 22. The second transfer structure 41 is moved to place the water channel core and the cold iron sleeve in order, and is pressed by the pressing assembly 24.

[0089] In this embodiment, the production line also includes a transport device 50, which includes a transport structure and a plurality of bearing structures 51, and the transport structure is movably arranged between the loading system 30 and the core setting system 40; the transport structure includes a transport portion, and the transport portion is adapted to the bearing structure 51 to transport the bearing structure 51; and a plurality of mounting portions 511 are arranged on the bearing structure 51, and the mounting portions 511 are adapted to the mounting portions 511 of the parts to be transported to mount the parts to be transported on the bearing structure 51. It should be noted that the transport structure can be an AGV trolley, and the bearing structure 51 can be a pallet. With such a setting, a plurality of sand cores can be fixed by the plurality of mounting portions 511 on the bearing structure 51, and in actual application, by laying reflective barrels at the production site and using a forklift-type AGV transfer vehicle to operate between the loading system 30 and the core setting system 40 according to a set route, the storage and first-in-first-out of the sand cores can be effectively realized, and stable supply can be achieved according to a predetermined frequency.

[0090] Specifically, the first transfer structure 31 uses the clamp assembly 20 to clamp the sand cores in sequence and place them on the bearing structure 51. In order to save space and improve efficiency, the pallet is designed to store two sets of sand cores and can be stacked in a customized manner. The pallet loaded with sand cores is transported to the next station via the roller line, and after being stopped by the mechanical structure, it is transferred to the manual station. Other sand cores that need to be transported together are placed on the pallet manually, and are pushed to the next station after the sand core coating layer is repaired and other auxiliary materials are installed.

[0091] In this embodiment, the transport device 50 further includes a third transfer structure 52, which includes a transfer arm 521 and a transfer frame 522 connected by driving, and the transfer frame 522 cooperates with the bearing structure 51. Among them, along the circumference of the transfer frame 522, a plurality of locking members 5221 and positioning members 5222 are arranged on the transfer frame 522, the positioning members 5222 protrude from the transfer frame 522, and one end of the positioning members 5222 away from the transfer frame 522 is adapted to the to-be-positioned portion of the bearing structure 51; the locking member 5221 has a movable clamping portion, and the locking portion is adapted to and relatively arranged with the to-be-matched portion of the bearing structure 51. With such a setting, after the pallet passes through the manual station, the third transfer structure 52 uses the transfer frame 522 to stack the pallet filled with sand cores to the corresponding position, so as to realize the stacking of multiple pallets. The third transfer structure 52 uses the transfer frame 522 to separate the empty pallets stacked in the placement area, and takes out a pallet and transfers it to the core setting station of the core setting system 40 on the conveyor line.

[0092] Specifically, the core lowering system 40 in this embodiment includes at least two second transfer structures 41, and the working steps of the core lowering system 40 include: the third transfer structure 52 separates the pallet group, places the pallet with two sets of sand cores on the conveyor line, and transports them to at least two second transfer structures 41, and then the second transfer structure 41 controls the cylinder and clamps different sand cores respectively through the clamp assembly 20.

[0093] In this embodiment, the loading system 30 also includes a support structure 32, which is arranged on the side of the first transfer structure 31. The support structure 32 is provided with a plurality of support brackets 321, and the plurality of support brackets 321 are adapted to the objects to be transported. With such a setting, the support brackets 321 can temporarily store the sand cores; and during operation, the sand cores are first clamped and placed at the corresponding positions on the support brackets 321 by one group of two adjacent clamp assemblies 20, and then the sand cores are clamped and placed on the tray by another group of two adjacent clamp assemblies 20. Since the first transfer structure 31 is provided with three groups of clamp assemblies 20 arranged at an angle, the direction and position of the sand core can be adjusted by the positional relationship between the clamp assemblies 20, so as to avoid manual rotation and flipping of the sand cores, thereby improving the production efficiency of the sand cores. The sand core production line of the present invention involves various control parameters such as visual recognition system adjustment, sand core and sand mold identification, robot clamping force adjustment, operation speed adjustment, etc. The production efficiency can reach 50 pieces / hour when 5 sand cores are produced. If the number of sand cores is reduced or merged, the production efficiency can be further improved.

[0094] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: the driving arm 10 drives the clamp assembly 20 to move, and different sand cores are clamped by at least two clamp assemblies 20 to transfer the corresponding sand cores to the specific position of the tray, which can ensure that the sand cores are transferred in batches, stably and accurately during the transfer process, thereby avoiding the damage to the sand cores caused by manual handling, and thus solving the technical problem of low accuracy of manual handling of sand cores in the prior art. The sand cores are transferred from the roller to the tray through a high-precision visual recognition system of the kiln discharge position, and the sand cores are locked through the positioning mechanism to ensure that they can be transferred in batches and stably during the transfer process to avoid damage to the sand cores. The AVG trolley is used for transportation, and the goods can be stably supplied at a predetermined frequency. The tray is split using a designed positioning mechanism, and the positioning system and the high-precision visual recognition system are used to complete the precise core setting action. With the help of full-process parameter adjustment, multiple benefits of quality and efficiency are achieved. The core setting operation is completed with high precision; high-precision recognition is used to avoid misusing sand cores or producing wrong part numbers; and production efficiency requirements are met.

[0095] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0096] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0097] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0098] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0099] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sand core production line, characterized in that: include: A loading system (30) comprises a first transfer structure (31) and a support structure (32), wherein the first transfer structure (31) is used to transfer the sand core to the support structure (32); A transport device (50) comprises a transport structure, a bearing structure (51) and a third transfer structure (52), wherein the bearing structure (51) is provided with a plurality of mounting portions (511), the mounting portions (511) being adapted to the sand core, the third transfer structure (52) being arranged to be flippable, the third transfer structure (52) being used to flip the sand core and transfer the flipped sand core to the bearing structure (51), and the transport structure being movably arranged to carry the bearing structure (51); The core setting system (40) comprises a second transfer structure (41), wherein the second transfer structure (41) is movably arranged and is used for taking away the sand core on the supporting structure (51).

2. The sand core production line according to claim 1, characterized in that: The charging system (30) further comprises: a first levelness detection member, arranged on the first transfer structure (31), the first levelness detection member being used to detect the levelness of the furnace-out tray carrying the sand core; a first image acquisition component, arranged on the first transfer structure (31), the first image acquisition component being used to acquire an image of the sand core on the furnace-out tray; a first image recognition module, connected to the first image acquisition component, and configured to determine whether the quality of the sand core is qualified according to the image of the sand core; A first control module, the first level detection component, the first image recognition module and the first transfer structure (31) are all connected to the first control module; when the first level detection component detects that the horizontal state of the furnace tray is qualified and the first image recognition module determines that the quality of the sand core is qualified, the first control module controls the first transfer structure (31) to move to the furnace tray and transfer the sand core on the furnace tray.

3. The sand core production line according to claim 2, characterized in that: The first image recognition module is also used to determine the type of the sand core based on the image of the sand core. The first control module obtains a clamping force that is suitable for the type of the sand core based on the type of the sand core, and controls the first transfer structure (31) to clamp the sand core with a clamping force that is suitable for the type of the sand core.

4. The sand core production line according to claim 1, characterized in that: The support structure (32) has an avoidance gap, the first transfer structure (31) is used to transfer the sand core to the support structure (32) through the top of the avoidance gap and make at least part of the sand core located in the avoidance gap, the third transfer structure (52) moves to the avoidance gap through the bottom of the avoidance gap and clamps the sand core, and the sand core is flipped and transferred by the third transfer structure (52).

5. The sand core production line according to claim 1, characterized in that: The core setting system (40) further comprises: a second image acquisition component, arranged on the second transfer structure (41), the second image acquisition component being used to acquire an image of the sand core; a second image recognition module connected to the second image acquisition component, and the second image recognition module is used to determine the type of the sand core according to the image of the sand core; A second control module, the second image recognition module and the second transfer structure (41) are all connected to the second control module, and the second control module controls the clamping force of the second transfer structure (41) according to the type of the sand core.

6. The sand core production line according to claim 5, characterized in that: The core setting system (40) further comprises a position detection component, the position detection component is used to detect the position of the sand core on the supporting structure (51) and the position of the sand box, the position detection component is connected to the second control module, and the second control module controls the second transfer structure (41) to clamp the sand core and transfer the sand core to the sand box according to the position information detected by the position detection component; and / or, The lower core system (40) also includes a second level detection component arranged on the second transfer structure (41), and the second level detection component is used to detect the level of the sand core on the supporting structure (51); the transfer part of the second transfer structure (41) is rotatably arranged, and the transfer part is connected to the sand core. The second control module controls the second transfer structure (41) to adjust the posture of the transfer part of the second transfer structure (41) according to the deviation of the level of the sand core, so as to adjust the deviation of the level of the sand core within an acceptable range.

7. The sand core production line according to any one of claims 1 to 6, characterized in that: The first transfer structure (31) and / or the second transfer structure (41) is a transfer device, and the transfer device comprises: A driving arm (10), wherein the driving arm (10) is movably arranged; At least two fixture assemblies (20) are arranged at intervals, at least one of the two fixture assemblies (20) is adapted to a first sand core, and at least another of the two fixture assemblies (20) is adapted to a second sand core; The driving arm (10) has a first clamping position and a second clamping position; when the driving arm (10) is in the first clamping position, at least one of the two clamp assemblies (20) is arranged opposite to the first sand core; when the driving arm (10) is in the second clamping position, at least another of the two clamp assemblies (20) is arranged opposite to the second sand core; Each of the clamp assemblies (20) comprises a connecting frame (21) and a plurality of clamping members, and the plurality of clamping members are all detachably arranged on the connecting frame (21).

8. The sand core production line according to claim 7, characterized in that: The clamp assembly (20) further comprises: A first clamping member (22) is arranged on the connecting frame (21), wherein the first clamping member (22) comprises at least two movably arranged first clamping arms (221), and the at least two first clamping arms (221) can move towards or away from each other; wherein the first clamping member (22) has at least two first abutting portions (222) arranged opposite to each other, the at least two first abutting portions (222) are respectively connected to at least two first clamping arms (221), the first abutting portion (222) has a first contact surface contacting the sand core, the first abutting portion (222) is made of an elastic or flexible material so that the cross-sectional shape of the first contact surface can be adjusted according to the surface shape of the sand core; and / or, The first clamping member (22) has at least two second abutting portions (223) arranged opposite to each other, the at least two second abutting portions (223) are respectively connected to at least two first clamping arms (221), and the second abutting portions (223) have a clamping groove, which is adapted to the sand core.

9. The sand core production line according to claim 7, characterized in that: The clamp assembly (20) further comprises: A second clamping member (23) is arranged on the connecting frame (21), the second clamping member (23) protrudes from the connecting frame (21), a tensioning portion is arranged at one end of the second clamping member (23) away from the connecting frame (21), and the cross-sectional size of the tensioning portion is adjustable to be interference-fitted with the matching hole of the sand core; and / or, A clamping assembly (24) is arranged on the connecting frame (21), the clamping assembly (24) comprises a pressure member (241) and a driving member (242) which are connected in a driving manner, the driving member (242) drives the pressure member (241) to be movably arranged in a direction close to or away from the sand core, the pressure member (241) has a third abutting portion at one end away from the connecting frame (21), and the third abutting portion abuts against the sand core; and / or, At least two of the clamp assemblies (20) are arranged on the connecting frame (21) at a preset angle, and the connecting frame (21) is rotatably arranged so that one of the at least two clamp assemblies (20) is opposite to the transport device (50).

10. The sand core production line according to any one of claims 1 to 6, characterized in that: The third transfer structure (52) comprises a transport arm (521) and a transport frame (522) which are drive-connected, and the transport frame (522) cooperates with the bearing structure (51); wherein, along the circumference of the transport frame (522), a plurality of locking members (5221) and positioning members (5222) are arranged on the transport frame (522), and the positioning members (5222) are arranged to protrude from the transport frame (522), and one end of the positioning member (5222) away from the transport frame (522) is adapted to the portion to be positioned of the bearing structure (51); the locking member (5221) has a movably arranged clamping portion, and the clamping portion is adapted to and relatively arranged to the portion to be matched with the bearing structure (51); and / or, The support structure (32) is arranged on the side of the first transfer structure (31), and a plurality of support brackets (321) are arranged on the support structure (32), and each of the support brackets (321) is used to match the sand core.

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