In-mold sand core taking and placing device for casting

Abstract

The invention discloses an in-mold sand core taking and placing device for casting, and relates to the technical field of sand core casting, the key points of the technical scheme are as follows: the in-mold sand core taking and placing device comprises an inner supporting piece and a clamping piece, and taking and placing modes can be quickly switched according to different sand core shapes. The inner supporting piece is used for taking and placing the open sand core with a cavity inside through expansion and contraction; and the clamping piece is used for clamping the sand core which cannot be inserted into the interior through folding and unfolding. The device is further provided with an adjusting structure, a manual transmission mode and an automatic transmission mode are provided, and flexible adjustment is achieved. The inner supporting piece and the clamping piece are used independently, and the taking and placing efficiency and precision are improved through the rapid switching function of the adjusting piece and the transmission piece. The whole design is ingenious, the structure is compact, and the device is suitable for taking and placing sand cores in various casting molds.

Description

Technical Field

[0001] The invention relates to the technical field of sand core casting, and more specifically to a device for taking and placing sand cores in a casting mold. Background Art

[0002] In the foundry industry, sand cores are key components for forming complex shapes and structures inside castings. Their manufacturing, positioning, and placement processes have a crucial impact on the quality of the final castings.

[0003] At present, in the foundry industry, in order to facilitate the placement and ensure the accuracy of castings, the sand core is usually handled as a whole when it is placed and taken. In order to prevent the sand core from cracking, breaking or deforming, the sand core should be placed and taken as gently as possible to avoid violent collision or falling. At the same time, according to the shape and size of the sand core, appropriate tools are selected for placement, such as sand core clamps, sand core carts, etc., to reduce direct contact and damage to the sand core. In addition, the internal support placement clamps and clamping sampling clamps are currently mainly used for the placement of sand cores. Different clamps are selected depending on different sand cores. For the internal support placement clamps and clamping placement clamps, due to the different clamping forms, personnel are required to select different placement devices according to different sand cores. However, due to the different products cast in the casting process, different placement equipment needs to be replaced according to different casting products, and the internal support placement device and the clamping placement device cannot be used in combination.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a device for taking and placing sand cores in a casting mold. Summary of the invention

[0005] The purpose of the present invention is to provide a method to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: comprising: an inner support member and a clamping member used for taking and placing the sand core in the mold during casting and capable of switching different taking and placing methods according to different sand cores;

[0007] The inner support is used to take and place the open sand core with a cavity inside;

[0008] A clamping piece is used to pick up and place sand cores that cannot have a pick-and-place device plugged in;

[0009] The inner support member and the clamping member are used independently of each other, and the inner support member and the clamping member are used to switch their functions through the adjusting member and the transmission member, so as to realize the rapid switching of the functions of the pick-and-place device;

[0010] The inner support member is installed using an expandable and contractible structure, and a foldable and contractible clamping member is provided. When a sand core having a cavity inside and providing a space for inserting a pick-up and placement device is to be taken and placed, the pick-up and placement device is inserted into the sand core, and the expansion of the inner support member is used to realize the use of the inner support structure to take and place the sand core in the casting mold. At the same time, when there is no cavity inside or the cavity inside is not enough to insert the pick-up and placement device into the sand core, an external clamping member can be used to clamp the outside of the sand core to realize the clamping and placement of the sand core. According to the different types of sand cores in the casting mold, different methods are selected for the pick-up and placement device. The inner support and outer clamping pick-up and placement devices are combined into the same device body and use the same power source. The power source is switched in different directions only according to the different pick-up and placement methods selected, thereby improving the functionality of the pick-up and placement device.

[0011] As a further description of the above technical solution: it also includes an adjustment structure for providing a power source for the pick-and-place device, and the adjustment structure is provided with two transmission modes, so as to provide the pick-and-place device with multiple transmission modes, which are manual and automatic and can be used simultaneously;

[0012] The adjustment structure includes a threaded sleeve for manual grasping by personnel, a threaded groove is provided in the threaded sleeve and a threaded rod is rotatably inserted in the threaded sleeve, and a hydraulic rod for providing automatic adjustment is connected to the bottom end of the threaded rod through a bearing shaft, so as to implement three different adjustment methods for the pick-and-place device, including:

[0013] A. The manual adjustment of the pick-and-place device is realized by the telescopic displacement generated by the threaded rod in the threaded sleeve during the rotation of the thread, and the corresponding pick-and-place mode can be switched and transmitted with the displacement of the threaded rod in two directions in the threaded sleeve;

[0014] B. The automatic adjustment of the pick-and-place device is realized through the extension and retraction of the hydraulic rod itself, and the displacement in two directions caused by the extension and retraction of the hydraulic rod can switch and transmit the corresponding pick-and-place mode;

[0015] C. After the automatic adjustment of the pick-and-place device to the pick-and-place mode is realized through the automatic extension and retraction of the hydraulic rod itself, the displacement generated by the manual rotation of the threaded rod in the threaded sleeve can realize a certain degree of fine adjustment of the pick-and-place device during the pick-and-place process;

[0016] The adjustment structure is provided as a power source to provide three different adjustment modes for the pick-and-place device, and can provide power input for the corresponding two clamping modes for transmission in different directions.

[0017] As a further description of the above technical solution: the power output end of the regulating structure is movably connected to the connecting structure through a rotating member, and the connecting structure provides the power generated by the regulating structure to the inner support structure or the outer clamping structure, so as to select a suitable method to take and place the sand core in the casting mold;

[0018] The adjusting structure includes one end of a connecting support rod connected to both sides of the bottom end of the threaded sleeve through a rotating shaft, and also includes one end of a movable support rod connected to both sides of the bottom end of the hydraulic rod through a rotating shaft. The other end of the connecting support rod is rotatably connected to the top end of the inner side of the support plate through the rotating shaft. The other end of the movable support rod is inserted into the middle end position of the support plate and is rotatably connected to the inner support structure and the outer clamping structure through the rotating shaft. The threaded sleeve and the hydraulic rod are installed between the support plate by providing connecting support rods and movable support rods at both ends, so as to realize the expansion and contraction between the threaded rod and the threaded sleeve and the displacement caused by the expansion and contraction of the hydraulic rod, and realize the switching of the inner support structure and the outer clamping structure provided in the support plate, so as to select different taking and placing methods according to the sand cores in different casting molds.

[0019] As a further description of the above technical solution: the inner support structure includes an adjustment member and an inner support member;

[0020] The adjusting member is arranged in the inner support member and movably connected to the connecting structure, and the power transmitted in the connecting structure drives the inner support member to expand or contract, so as to realize the placement of the sand core after the inner support member inserted in the sand core is expanded or the extraction of the sand core after the inner support member is contracted;

[0021] The adjusting member includes an upper slide bar that is inserted into a movable support rod at an upper position of one end of the support plate and is rotatably connected to the upper slide bar through a rotating shaft. The upper slide bar is provided with a vertical long side and a short side, and the short side is arranged at the top to form the shape of the number "7". The short side of the upper slide bar is slidably connected to the slide rail. The slide rail is arranged on a side wall of the support plate to provide track restriction for the up and down sliding of the upper slide bar, and an open-shaped inwardly recessed groove is arranged on the short side surface of the upper slide bar. The position and size of the groove correspond to the slide column that is slidably connected to the bottom of the slide rail, and a slider that is slidably connected to the bottom of the slide rail is also arranged on the top of the slide column to provide a displacement trajectory limit for the sliding of the slide column. A separate slideway for the sliding slider is also arranged at the bottom of the slide rail. Both ends of the slide column pass through the storage groove and are rotatably connected to the inner support member through a rotating shaft to achieve expansion and contraction of the inner support member.

[0022] As a further description of the above technical solution: the inner support member realizes the contact area between the inner support member and the inner wall of the sand core through its own expansion and contraction, and provides protection for the inner wall of the sand core during the process of taking and placing the sand core;

[0023] The inner support member includes a support plate for fitting against the inner wall of the sand core in the casting mold so as to take and place the sand core, and expansion plates are foldably installed on both sides of the upper half of the support plate surface, the inner side of the expansion plate is connected to the bending point of the terminal end of the triangular rod, and one end of the triangular rod is connected to the top position in the storage groove in a rotatable and fixed manner through a rotating shaft, and the other end of the triangular rod is rotatably connected to the two ends of the sliding column through the rotating shaft, and the expansion and contraction of the triangular rod is achieved by the up and down sliding displacement of the sliding column in the slide rail, so that the expansion plate installed at the rotation turning position of the terminal end of the triangular rod is pushed outward to expand or contracted inward.

[0024] As a further description of the above technical solution: the outer clamping structure includes a transmission member and a clamping member;

[0025] The power transmitted by the transmission member to the connecting structure folds and unfolds the clamping member, thereby realizing the storage and use of the clamping member;

[0026] The transmission member includes a lower slide bar which is rotatably connected to a movable support rod and inserted in the support plate at one end through a rotating shaft. The lower slide bar and the upper slide bar are symmetrically arranged up and down and have an open pressure groove which is recessed inward on the short side. The shape and size of the pressure groove correspond to the pressure column. The pressure column is inserted in one side of the rotation groove. The rotation groove is opened at one end of the rotating column. The other end of the rotating column is connected to a clamping member. The lower slide bar presses the pressure column to press one end of the rotating column downward and rotate it, so as to rotate the clamping member connected to the other end of the rotating column and then unfold it to clamp the sand core.

[0027] The pressure column is arranged on one side of the rotating groove, and this side is the side on which the rotating column is displaced downward during rotation. When the pressure column is pressed, one end of the rotating column where the pressure column is arranged can be displaced downward toward the side on which the pressure column is installed, thereby driving the pressure column to rotate, thereby lifting the clamping piece installed on the other end of the rotating column upward for clamping use.

[0028] As a further description of the above technical solution: the clamping member can clamp and take the sand core by unfolding the transmission member;

[0029] The clamping part includes a clamping ring for external clamping and placing of the sand core in the casting mold, and the two sides of the rotating column at the connection position of the clamping ring and the rotating column are rotatably connected in the storage box through bearings. The storage box is arranged at the bottom end of the inner side of the support plate, so that the clamping ring can be folded and stored when the clamping ring is not used for clamping and placing the sand core.

[0030] As a further description of the above technical solution: the manually adjustable threaded rod arranged in the adjustment structure is provided with a pull ring at one end away from the connecting structure for hanging storage or grabbing the pick-and-place device, thereby realizing the grabbing and quick storage of the pick-and-place device.

[0031] As a further description of the above technical solution: the inner side of the clamping ring arranged in the clamping member and the surface of the support plate arranged in the inner support member are both provided with gaskets for increasing friction and providing better picking and placing effects, thereby achieving firmness in the picking and placing process of the sand core in the casting mold.

[0032] As a further description of the above technical solution: the movable support rod arranged in the connecting structure is inserted into the support plate in the inner support member at the insertion position, and a track cavity is opened to facilitate the movement of the movable support rod, and this cavity is filled with a sponge pad that provides support for the movable support rod and does not affect the movement of the movable support rod, thereby realizing the positioning of the movable support rod when not in use.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. Versatility: The present invention provides a device for taking and placing in-mold sand cores for casting, which integrates two taking and placing methods: internal support type and clamping type. The taking and placing methods can be quickly switched according to different shapes and sizes of sand cores, thereby improving the flexibility and adaptability of operation.

[0035] 2. Efficient switching: Through the design of adjusting parts and transmission parts, fast switching between internal support parts and clamping parts is achieved, which saves the time of replacing the pick-and-place device and improves work efficiency.

[0036] 3. Precise control: The device is equipped with an adjustment structure and provides two transmission modes: manual and automatic. It can be flexibly selected according to actual needs, realizing precise control of the pick-and-place device and improving the accuracy of picking and placing sand cores.

[0037] 4. Protective performance: During the expansion and contraction process, the inner support parts can fit the inner wall of the sand core, provide protection, reduce direct contact and damage to the sand core, and protect the integrity of the sand core.

[0038] 5. Reasonable structural design: The overall structural design is ingenious, the structure is compact, and the connection between the components is stable and reliable, ensuring the stability and durability of the device during use.

[0039] 6. Easy to store and carry: The device is equipped with a pull ring for easy hanging storage or grabbing, which is convenient for storage and carrying and improves the convenience of use.

[0040] 7. Strong versatility: It is suitable for taking and placing sand cores in various casting molds. It is widely used in the field of sand core casting, which improves production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0042] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0043] Figure 2 It is a schematic diagram of the structure in the clamping state of the present invention;

[0044] Figure 3 It is a schematic diagram of the structure in the internal support state of the present invention;

[0045] Figure 4 It is a schematic diagram of the structure of the present invention when the internal support is in the maximum range;

[0046] Figure 5 It is a structural schematic diagram of the support plate in the present invention;

[0047] Figure 6 It is a structural schematic diagram of the connection relationship between the upper sliding rod, the lower sliding rod and the movable support rod in the present invention;

[0048] Figure 7 It is a structural schematic diagram of the connection relationship between the sliding column and the triangular rod in the present invention;

[0049] Figure 8 It is a structural schematic diagram of the connection relationship between the lower slide bar and the rotating column in the present invention;

[0050] Fig. 9 It is a structural schematic diagram of the connection relationship between the lower slide bar and the clamp ring in the present invention;

[0051] Fig.10 It is a schematic diagram of the position structure of the intermediate pressure column of the transfer column of the present invention.

[0052] Description of reference numerals:

[0053] 1-Pull ring; 26-Gasket

[0054] Adjustment structure: 2-threaded rod; 3-threaded sleeve; 4-hydraulic rod

[0055] Connection structure: 5-connecting support rod; 6-rotating shaft; 9-movable support rod

[0056] Internal support structure: Adjustment parts: 13-slide rail; 14-upper slide bar; 16-slide column; 17-storage slot; 18-slider; 19-groove

[0057] Internal support: 7-support plate; 8-expansion plate; 12-triangular rod

[0058] External clamping structure: Transmission parts: 15-lower sliding rod; 20-pressing groove; 21-pressing column; 22-rotating groove; 23-rotating column Clamping parts: 10-clamping ring; 11-storage box; 25-bearing. DETAILED DESCRIPTION

[0059] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0060] See also Figure 1-10 , an embodiment of the present invention provides a technical solution: comprising: an inner support member and a clamping member used for taking and placing a sand core in a mold during casting and capable of switching different taking and placing methods according to different sand cores;

[0061] The inner support is used to take and place the open sand core with a cavity inside;

[0062] A clamping piece is used to pick up and place sand cores that cannot be plugged into the inside of the pick-up and placement device;

[0063] The inner support member and the clamping member are used independently of each other, and the inner support member and the clamping member are used to switch their functions through the adjusting member and the transmission member, so as to realize the rapid switching of the function of the pick-and-place device;

[0064] The inner support member is installed using an expandable and contractible structure, and a foldable and contractible clamping member is provided. When a sand core having a cavity inside and providing a space for inserting a pick-up and placement device is to be taken and placed, the pick-up and placement device is inserted into the sand core, and the expansion of the inner support member is used to realize the use of the inner support structure to take and place the sand core in the casting mold. At the same time, when there is no cavity inside or the cavity inside is not enough to insert the pick-up and placement device into the sand core, an external clamping member can be used to clamp the outside of the sand core to realize the clamping and placement of the sand core. According to the different types of sand cores in the casting mold, different methods are selected for the pick-up and placement device. The inner support and outer clamping pick-up and placement devices are combined into the same device body and use the same power source. The power source is switched in different directions only according to the different pick-up and placement methods selected, thereby improving the functionality of the pick-up and placement device.

[0065] This embodiment provides a casting mold sand core picking and placing device, which also includes an adjustment structure for providing a power source for the picking and placing device, and the adjustment structure is provided with two transmission modes, so as to provide the picking and placing device with manual and automatic transmission modes that can be used simultaneously;

[0066] The adjustment structure includes a threaded sleeve 3 for manual grasping by personnel, a threaded groove is provided in the threaded sleeve 3, and a threaded rod 2 is rotatably threadedly inserted in the threaded sleeve 3, and the bottom end of the threaded rod 2 is connected to a hydraulic rod 4 for providing automatic adjustment through a bearing 25 and a rotating shaft 6, so as to implement three different adjustment methods for the pick-and-place device, including:

[0067] A. The manual adjustment of the pick-and-place device is realized by the telescopic displacement generated during the rotation of the thread of the threaded rod 2 in the threaded sleeve 3, and the corresponding pick-and-place mode can be switched and transmitted with the displacement of the threaded rod 2 in two directions in the threaded sleeve 3;

[0068] B. The automatic adjustment of the pick-and-place device is realized by the extension and retraction of the hydraulic rod 4 itself, and the displacement in two directions caused by the extension and retraction of the hydraulic rod 4 can switch and transmit the corresponding pick-and-place mode;

[0069] C. After the automatic adjustment of the pick-and-place device to the pick-and-place mode is realized through the automatic extension and retraction of the hydraulic rod 4 itself, the displacement generated by the manual rotation of the threaded rod 2 in the threaded sleeve 3 can realize a certain degree of fine adjustment of the pick-and-place device during the pick-and-place process;

[0070] The adjustment structure is provided as a power source to provide three different adjustment modes for the pick-and-place device, and can provide power input for the corresponding two clamping modes for transmission in different directions.

[0071] This embodiment provides a device for taking and placing sand cores in a casting mold. The power output end of the adjustment structure is movably connected to the connection structure through a rotating member. The connection structure provides the power generated by the adjustment structure to the inner support structure or the outer clamping structure, so as to select a suitable method to take and place the sand cores in the casting mold.

[0072] The adjusting structure includes one end of a connecting support rod 5 connected to both sides of the bottom end of the threaded sleeve 3 through a rotating shaft 6, and also includes one end of a movable support rod 9 connected to both sides of the bottom end of the hydraulic rod 4 through a rotating shaft 6. The other end of the connecting support rod 5 is rotatably connected to the top inner side of the support plate 7 through the rotating shaft 6. The other end of the movable support rod 9 is inserted into the middle end position of the support plate 7 and is rotatably connected to the inner support structure and the outer clamping structure through the rotating shaft 6. The threaded sleeve 3 and the hydraulic rod 4 are installed between the support plate 7 by providing connecting support rods 5 and movable support rods 9 at both ends, so as to realize the expansion and contraction between the threaded rod 2 and the threaded sleeve 3 and the displacement caused by the expansion and contraction of the hydraulic rod 4, and realize the switching of the inner support structure and the outer clamping structure provided in the support plate 7, so as to select different taking and placing methods according to the sand cores in different casting molds.

[0073] This embodiment provides a device for taking and placing sand cores in a casting mold, wherein the inner support structure includes an adjusting member and an inner support member;

[0074] The adjusting member is arranged in the inner support member and movably connected to the connecting structure, and the power transmitted in the connecting structure drives the inner support member to expand or contract, so as to realize the placement and taking out of the sand core after the inner support member inserted in the sand core is expanded or the extraction after the inner support member is contracted;

[0075] The adjusting member includes an upper slide bar 14 which is inserted into the upper position of one end of the support plate 7 and is rotatably connected to the upper slide bar 14 by the rotating shaft 6. The upper slide bar 14 is provided with a vertical long side and a short side, and the short side is arranged at the top to form the shape of the number "7". The short side of the upper slide bar 14 is slidably connected to the slide rail 13. The slide rail 13 is provided on one side wall of the support plate 7 to provide track restriction for the up and down sliding of the upper slide bar 14, and an open-shaped inwardly recessed groove 19 is provided on the short side surface of the upper slide bar 14. The position and size of the groove 19 correspond to the slide column 16 which is slidably connected to the slide rail 13. A slider 18 which is slidably connected to the bottom of the slide rail 13 is also provided on the top of the slide column 16 to provide a displacement trajectory limit for the sliding of the slide column 16. A slideway is also provided at the bottom of the slide rail 13 for sliding the slider 18 separately. The two ends of the slide column 16 pass through the storage groove 17 and are rotatably connected to the inner support member by the rotating shaft 6 to achieve expansion and contraction of the inner support member.

[0076] This embodiment provides a device for taking and placing a sand core in a casting mold. The inner support member realizes the contact area between the inner support member and the inner wall of the sand core through its own expansion and contraction, and provides protection for the inner wall of the sand core during the process of taking and placing the sand core;

[0077] The inner support member includes a support plate 7 for fitting against the inner wall of the sand core in the casting mold so as to take and place the sand core, and expansion plates 8 are foldably installed on both sides of the upper half of the surface of the support plate 7, the inner side of the expansion plate 8 is connected to the terminal bending point of the triangular rod 12, and one end of the triangular rod 12 is connected to the top position in the storage groove 17 in a rotatable and fixed manner through the rotating shaft 6, and the other end of the triangular rod 12 is rotatably connected to the two ends of the sliding column 16 through the rotating shaft 6. The expansion and contraction of the triangular rod 12 is realized by the up and down sliding displacement of the sliding column 16 in the slide rail 13, so that the expansion plate 8 installed at the terminal rotation turning position of the triangular rod 12 is pushed outward to expand or contracted inward.

[0078] This embodiment provides a device for taking and placing sand cores in a casting mold, wherein the outer clamping structure includes a transmission member and a clamping member;

[0079] The power transmitted by the transmission member to the connecting structure folds and unfolds the clamping member, thereby realizing the storage and use of the clamping member;

[0080] The transmission member includes a lower slide bar 15 which is rotatably connected to the movable support rod 9 and inserted under one end of the support plate 7 through the rotating shaft 6. The lower slide bar 15 and the upper slide bar 14 are arranged in a vertically symmetrical shape and have an opening-shaped pressing groove 20 which is recessed inward on the short side. The shape and size of the pressing groove 20 correspond to the pressing column 21. The pressing column 21 is inserted into one side of the rotating groove 22. The rotating groove 22 is opened at one end of the rotating column 23. The other end of the rotating column 23 is connected to the clamping member. By pressing the pressing column 21 by the lower slide bar 15, one end of the rotating column 23 is pressed downward and rotated, so that the clamping member connected to the other end of the rotating column 23 is rotated and unfolded to clamp the sand core.

[0081] The pressure column 21 is arranged on one side in the rotating groove 22, and this side is the side that is displaced downward by the biased rotating column 23 during the rotation process. When the pressure column 21 is pressed, one end of the rotating column 23 where the pressure column 21 is arranged can be displaced downward toward the side where the pressure column 21 is installed, thereby driving the pressure column 21 to rotate, thereby lifting the clamping piece installed at the other end of the rotating column 23 upward for use in clamping.

[0082] This embodiment provides a device for taking and placing a sand core in a casting mold, wherein the clamping member can clamp and place the sand core by unfolding the transmission member;

[0083] The clamping part includes a clamping ring 10 for external clamping and placing of the sand core in the casting mold, and the clamping ring 10 and the rotating column 23 are connected at both sides of the rotating column 23 through bearings 25 and are rotatably connected in the storage box 11. The storage box 11 is arranged at the bottom end of the inner side of the support plate 7, so that the clamping ring 10 can be folded and stored when the clamping ring 10 is not used for clamping and placing the sand core.

[0084] This embodiment provides a casting in-mold sand core picking and placing device, and a manually adjustable threaded rod 2 arranged in the adjustment structure is provided with a pull ring 1 for hanging storage or grabbing the picking and placing device at one end away from the connecting structure, thereby realizing the grabbing and quick storage of the picking and placing device.

[0085] The present embodiment provides a device for taking and placing sand cores in a casting mold. The inner side of the clamping ring 10 arranged in the clamping member and the surface of the support plate 7 arranged in the inner support member are both provided with gaskets 26 for increasing friction and providing a better taking and placing effect, thereby achieving firmness in the process of taking and placing the sand cores in the casting mold.

[0086] The present embodiment provides a device for taking and placing sand cores in a casting mold. The movable support rod 9 arranged in the connecting structure is inserted into the support plate 7 in the inner support member. A track cavity is provided at the insertion position to facilitate the movement of the movable support rod 9. The cavity is filled with a sponge pad that provides support for the movable support rod 9 and does not affect the movement of the movable support rod 9, thereby realizing the positioning of the movable support rod 9 when not in use.

[0087] The above embodiment provides a device for picking up and placing sand cores in a casting mold. The operation process and internal transmission process in the specific use process are as follows: after grabbing the picking up and placing device, the picking up and placing method of the sand core is selected according to the type and size of the sand core in the casting mold. There are two picking up and placing methods:

[0088] The first type: internal support type picking and placing, when the sand core in the casting mold to be picked and placed has a cavity inside, and the size is large enough to allow the picking and placing device to be inserted inside the sand core, the sand core is picked and placed by internal support, or only the sand core with internal support type can be used;

[0089] After grabbing the pull ring 1, the support plate 7 provided at the bottom end of the pick-and-place device is inserted into the cavity inside the sand core. Different expansion methods are selected according to the size of the inside of the sand core. There are also three expansion methods. When only a small range of expansion is required, the expansion can be completely carried out by rotating the threaded rod 2; when a large range of expansion is required, the expansion can be carried out by selecting the extension of the hydraulic rod 4 according to the position of the bottom end of the hydraulic rod 4; or the expansion can be carried out by first extending and contracting the hydraulic rod 4 and then fine-tuning the expansion range by rotating the threaded rod 2. Here, the two combined methods are described;

[0090] Due to the length limitation of the movable support rod 9, when the inner support is taken and placed, the maximum range of the inner support is when the movable support rod 9 is kept in a horizontal state. On this basis, when the initial position of the hydraulic rod 4 is higher than the end of the movable support rod 9 inserted in the support plate 7, the downward extension movement of the hydraulic rod 4 and the threaded rod 2 is to expand and open the support plate 7 to both sides. When the initial position of the hydraulic rod 4 is lower than the end of the movable support rod 9 inserted in the support plate 7, the upward contraction movement of the hydraulic rod 4 and the threaded rod 2 is to expand and open the support plate 7 to both sides.

[0091] Here, the description is based on the situation that the initial position of the hydraulic rod 4 is higher than the end of the movable support rod 9 inserted in the support plate 7. At this time, the hydraulic rod 4 is started to extend downward. After extending to a certain extent, the support plate 7 needs to be better fitted to the position of the inner wall of the sand core by rotating the threaded rod 2. The threaded rod 2 rotates clockwise in the threaded sleeve 3 and extends downward. In the process of the hydraulic rod 4 and the threaded rod 2 extending downward, since the position of the bottom end of the hydraulic rod 4 is displaced downward, the connecting support rod 5 will be connected to one end of the threaded sleeve 3 and the end of the threaded sleeve 3 under the rotation of the rotating shaft 6. The movable support rod 9 is connected to one end of the hydraulic rod 4 and moves downward, and the length of the movable support rod 9 is fixed, so the two sets of support plates 7 set on both sides are pushed outward, and at the same time, one end of the movable support rod 9 inserted in the support plate 7 will form a lever structure under the action of the bearing 25 set at the connecting position inserted in the support plate 7. At this time, the movable support rod 9 inserted in one end of the support rod will rise in height as the other end descends, so that the upper slide rod 14 is pushed upward, and the upper slide rod 14 slides upward in the slide rail 13 and moves upward through the groove 19 The slide column 16 is resisted, and the slide column 16 and the slider 18 also slide upward under the restriction of the trajectory of the slide rail 13. When the slide column 16 slides upward, it drives one end of the triangular rod 12 to slide upward, so that the length of the base of the triangle formed by the triangular rod 12 and the support plate 7 is gradually reduced, thereby increasing the height of the triangle. At this time, the expansion plate 8 connected to the outer side of the turning end of the triangular rod 12 is pushed outward and expanded, thereby increasing the contact area between the expansion plate 8 and the support plate 7 and the inner side wall of the sand core, so as to realize the inner side wall of the sand core in the process of taking and placing the sand core. The wall provides a certain protection, so when using the internal support type for taking and placing, while the support plate 7 is expanded outward, the expansion plates 8 installed on both sides of the support plate 7 can also be expanded to provide protection for the inner wall of the sand core, which is more practical; after taking and placing, it is only necessary to retract the hydraulic rod 4, thereby driving the movable support rod 9 connected to one end of the hydraulic rod 4 to slide upward, and at this time, the upper slide rod 14 is driven to slide downward through the movable support rod 9, and the slide column 16 will automatically reset under the action of gravity, so that the support plates 7 can be retracted and taken out from the sand core.

[0092] The second type: external clamping type picking and placing, when the cavity size of the sand core in the casting mold to be picked up and placed is small or no cavity is opened, and the picking and placing device cannot be plugged in, or only the sand core with external clamping type can be used;

[0093] When the movable support rod 9 is in the horizontal position, the distance between the two sets of clamp rings 10 is at the maximum range. At this time, the hydraulic telescopic rod is retracted, and the threaded rod 2 rotates counterclockwise in the threaded sleeve 3 to retract upward. As the hydraulic rod 4 and the threaded rod 2 shrink, the movable support rod 9 connected to one end of the hydraulic rod 4 is driven to lift upward, thereby squeezing the other end of the movable support rod 9 downward to form a lever. The movable support rod 9 is inserted into one end of the support rod and slides downward, thereby squeezing the lower slide rod 15 downward. The lower slide rod 15 slides downward and squeezes the pressure column 21 downward through the pressure groove 20. After the pressure column 21 is subjected to the downward squeezing force, due to its own position, it cooperates with the bearing 25, thereby setting the rotating column 23 to slide one end of the pressure column 21 downward, and due to the existence of the rotating groove 22, it will not affect the lower The sliding rod 15 presses the dynamic pressure column 21 downward, and the displacement of the lower sliding rod 15 is limited during the rotation process. When one end of the pressure column 21 is set to lower the height downward on the rotating column 23, the clamp ring 10 installed at the bottom end of the rotating column 23 is rotated from the storage box 11 to the horizontal under the rotation action of the bearing 25. At this time, the minimum clamping range is achieved. At the same time, when the lowering column 16 slides downward, the movable support rod 9 and the connecting support rod 5 are connected to the support plate 7. One end is lowered downward, so the distance between the two groups of support plates 7 is gradually reduced. After it is reduced to the size of the sand core clamping position, even if the clamp ring 10 does not reach the horizontal position, the position of the hydraulic rod 4 and the threaded rod 2 is limited, so the position of the clamp ring 10 is also fixed, so there will be no loosening and dragging during the clamping process.

[0094] It should be noted that when the internal support type is being taken and placed, the movable support rod 9 is in a horizontal position, at which time the internal support type reaches its maximum size;

[0095] When using the external clamping method for picking and placing, the clamp ring 10 reaches a horizontal position, at which time the external clamping method reaches the minimum clamping size;

[0096] Since the upper slide bar 14 pushes the slide post 16 upwards in a nearly linear motion, the size of the groove 19 opened on the short side of the upper slide bar 14 can be adapted to the size of the slide post 16, or the size of the groove 19 can be larger than the size of the slide post 16. However, since the lower slide bar 15 presses the pressure post 21 downwards and drives the rotation of the rotating post 23, the trajectory of the downward displacement of the pressure post 21 is an arc motion, so the size of the pressure groove 20 opened at the bottom of the short side of the lower slide bar 15 is larger than the size of the pressure post 21, and larger than the arc-shaped downward movement trajectory of the pressure post 21;

[0097] Since the groove 19 on the upper slide bar 14 and the pressure groove 20 on the lower slide bar 15 are both open, it is possible to ensure that the upper slide bar 14 and the slide column 16 and the lower slide bar 15 and the pressure column 21 can be separated freely without any restriction.

[0098] During the internal support type placement, when the support plates 7 are stretched to the maximum, since the movable support rod 9 is in a horizontal position, the upper slide rod 14 cannot be squeezed, which will cause the expansion plate 8 to be unable to be spread. At this time, the expansion plate 8 can also be unfolded manually, or only the support plate 7 can be used for internal support type placement. Therefore, when using, it is generally recommended not to perform internal support type placement on sand cores that are too large, or not to perform internal support by pushing the movable support rod 9 to a horizontal position. Instead, choose to insert the movable support rod 9 into the support plate 7 and lift one end upward at a certain angle. After the expansion plate 8 is expanded outward for a certain distance, the support plate 7 and the expansion plate 8 are attached to the inner side walls around the top opening of the sand core for placement.

[0099] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for taking and placing sand cores in a casting mold, include: The inner support and clamping parts are used for taking and placing the sand core in the mold during casting, and can switch different taking and placing methods according to different sand cores; the characteristics are: The inner support is used to take and place the open sand core with a cavity inside; A clamping piece is used to pick up and place sand cores that cannot be plugged into the inside of the pick-up and placement device; The inner support member and the clamping member are used independently of each other, and the inner support member and the clamping member are used to switch their functions through the adjusting member and the transmission member, thereby realizing rapid switching of the functions of the pick-and-place device.

2. A device for taking and placing sand cores in a casting mold according to claim 1, Features: It also includes an adjustment structure for providing a power source for the pick-and-place device, and the adjustment structure is provided with two transmission modes, so as to provide the pick-and-place device with a plurality of transmission modes, which are manual and automatic and can be used simultaneously.

3. A device for taking and placing sand cores in a casting mold according to claim 2, Features: The power output end of the regulating structure is movably connected to the connecting structure through a rotating member, and the connecting structure provides the power generated by the regulating structure to the inner supporting structure or the outer clamping structure, so as to select a suitable method to take and place the sand core in the casting mold.

4. A device for taking and placing a sand core in a casting mold according to claim 3, Features: The inner support structure includes an adjusting member and an inner support member; The adjusting member is arranged in the inner support member and movably connected to the connecting structure, and the power guided in the connecting structure drives the inner support member to expand or contract, so as to realize the placement and taking out of the sand core after the inner support member inserted in the sand core is expanded or the extraction after the inner support member is contracted.

5. A device for taking and placing sand cores in a casting mold according to claim 4, Features: The inner support member realizes the contact area between the inner support member and the inner side wall of the sand core through its own expansion and contraction, and provides protection for the inner side wall of the sand core during the process of taking and placing the sand core.

6. A device for taking and placing a sand core in a casting mold according to claim 5, Features: The outer clamping structure includes a transmission member and a clamping member; The power transmitted by the transmission member to the connecting structure is used to fold and unfold the clamping member, thereby realizing the storage and use of the clamping member.

7. A device for taking and placing sand cores in a casting mold according to claim 6, Features: The clamping member can clamp and place the sand core by unfolding the transmission member.

8. A device for taking and placing sand cores in a casting mold according to claim 7, Features: A manually adjustable threaded rod (2) disposed in the adjustment structure is provided with a pull ring (1) at one end away from the connection structure for hanging, storing or grabbing the pick-and-place device, thereby realizing grabbing and quick storage of the pick-and-place device.

9. A device for taking and placing a sand core in a casting mold according to claim 8, Features: The inner side of the clamping ring (10) arranged in the clamping member and the surface of the support plate (7) arranged in the inner support member are both provided with gaskets (26) for increasing friction and providing a better pick-up and placement effect, thereby achieving firmness in the process of picking up and placing the sand core in the casting mold.

10. A device for taking and placing a sand core in a casting mold according to claim 9, Features: The movable support rod (9) arranged in the connection structure is inserted into the support plate (7) in the inner support member, and a track cavity is provided at the insertion position thereof, which is convenient for the movable support rod (9) to move, and the cavity is filled with a sponge pad which is used to provide a support effect for the movable support rod (9) and does not affect the movement of the movable support rod (9), so as to realize the positioning of the movable support rod (9) when not in use.

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