A casting mold and method for a sweeping machine charging base

Abstract

The present invention discloses a casting mold and method for a charging stand for a sweeping machine. The present invention relates to the field of mold technology, including a base plate, the bottom of which is provided with T-shaped slots in a linear array, which reduces the weight while providing an effective clamping structure for fixing the base plate on an operating table, and also facilitates the circulation and heat dissipation of airflow at the bottom of the base plate. A lower mold base is installed on the top of the base plate, and a surrounding mold body is installed on the top of the lower mold base through bolt sealing. The casting mold and method for the charging stand for a sweeping machine, through the inner mold core synchronously performing the same amplitude downward movement inside the surrounding mold body, can retract the inner mold core to the inside of the rectangular groove to adjust the highest structural height of the top of the charging stand, and can complete the production of different models of charging stands for sweeping machines without changing the specifications of the charging interface components at the bottom of the charging stand, and meet the production needs of different models of charging stands for sweeping machines.

Description

Technical Field

[0001] The invention relates to the technical field of molds, and in particular to a casting mold and a method for a charging base of a sweeping machine. Background Art

[0002] With the improvement of people's living standards and the accelerated pace of life, household sweeping robots have received widespread attention and application as an intelligent cleaning device; sweeping robots can automatically complete floor cleaning tasks, greatly facilitating the lives of users; however, sweeping robots need to be charged regularly during use, and the charging stand, as one of its important accessories, not only needs to have a stable charging function, but also needs to be humanized in design to facilitate user use and maintenance; there are some problems with the casting molds used in the production of traditional sweeping machine charging stands, such as complex mold structure, high manufacturing cost, low production efficiency, long production cycle, and insufficient structural rigidity; in addition, due to the different types and sizes of sweeping robots, the design of traditional molds often cannot meet the production needs of different models of sweeping robots, resulting in low production efficiency and waste of resources; therefore, it is necessary to design a new type of casting mold for the production of sweeping machine charging stands to solve these problems. Summary of the invention

[0003] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: a casting mold and method for a sweeping machine charging stand, including a bottom plate, the bottom of the bottom plate is provided with T-shaped card slots in a linear array, which reduces the weight and provides an effective card-mounting structure for fixing the bottom plate on the operating table, and also facilitates the circulation and heat dissipation of airflow at the bottom of the bottom plate. A lower mold base is installed on the top of the bottom plate, and a surrounding mold body is installed on the top of the lower mold base through bolt sealing. The top of the surrounding mold body is encapsulated with a top mold plate, and the surrounding mold body is encapsulated with a top mold plate. An inner mold core is installed on the side, a mold core plate is installed between the lower mold base and the surrounding mold body, a core pulling plate is installed on the top of the inner mold core, and the middle parts of the left and right sides of the surrounding mold body and the middle parts of the left and right sides of the top of the top mold plate are threadedly connected with pouring valve pipes, the pouring valve pipes are used to inject molten metal, and the number of pouring valve pipes is four groups, a one-way exhaust valve is threadedly installed on the middle part of the top of the top mold plate, the one-way exhaust valve is used to exhaust the air in the casting cavity in one direction, and electric push rods are symmetrically installed on the left and right sides of the top of the top mold plate, and the number of electric push rods is two groups;

[0004] In addition, the bottom plate is also used to support the entire mold structure to ensure its stability and reliability;

[0005] A rectangular groove is provided through the middle of the top of the lower die base, and the inner mold core is installed in the lower die base through the rectangular groove, which is used to vertically guide the height change of the sweeper charging seat in a fixed position to ensure that it will not move horizontally or deform during the casting process, thereby ensuring the quality and accuracy of the cast product; two U-shaped cavities are symmetrically provided on the side of the lower die base away from the cooling fan, a first convex head is fixedly installed on the top of the lower die base and on one side of the short side of the lower die base, and a first convex head is fixedly installed on the top of the lower die base and on one side of the short side of the lower die base A second convex head is provided, and the first convex head and the second convex head are both mounted in an embedded manner with the surrounding mold body, and are used to position the core plate on the lower mold base, and help the core member to be installed and positioned as a whole on the lower mold base, and ensure its accurate installation and fixation; the first convex head and the second convex head both pass through the lower mold base and are connected with the U-shaped cavity, and a small bucket tube is fixedly installed on the middle part of the inner wall surface of the first convex head, and the flared end of the small bucket tube points to the inner top of the first convex head, and the contracted end points to the U-shaped cavity, and annular sheets are fixedly installed on the inner tops of the first convex head and the second convex head.

[0006] Preferably, a latch is inserted into the side of the top template, and the top template is assembled on the top of the surrounding mold body through the latch, and the core plate is fitted with the inner core, and the core plate is installed on the top of the lower mold base through bolts, and the inner core and the core plate together constitute a core piece, and a casting cavity is formed between the core piece and the lower mold base, the surrounding mold body and the top template, which is used to shape the molten metal into a charging seat for the sweeper, wherein the position and shape of the core piece are fixed by the surrounding mold body to ensure the accuracy and consistency of the casting cavity; the core piece constituted by the inner core and the core plate enables the core piece to form a charging interface of the sweeper charging seat and an installation mechanism of the internal electric control structure when surrounded by the lower mold base, the surrounding mold body and the top template, so that its structure is consistent with the actual product and can be directly used for production;

[0007] The core pulling plate is installed between the top mold plate and the inner mold core, two sets of electric push rods are installed between two sets of casting valve tubes on the top of the top mold plate, and the electric push rods and the casting valve tubes are installed together on the same horizontal axis, and the casting valve tubes installed on the surrounding mold body are installed in the lower middle part of the surrounding mold body.

[0008] Preferably, a lifting rod is installed on the inner side of the inner mold core in a left-right symmetrical shape, and the lifting rod is installed in an embedded manner with the bottom plate, and a push head is threadedly connected to the output end of the lifting rod, and the push head is fixedly installed on the inner mold core. The inner mold core is lifted and installed with the bottom plate through the cooperation of the lifting rod and the push head, and the surface of the push head is fixedly connected with ribs in a circular array shape, which increases the heat dissipation area of ​​the push head and increases the heat dissipation from the casting cavity to the inner space where the inner mold core is located through the push head; a telescopic tube is connected to the bottom of the one-way exhaust valve, and the telescopic tube is telescopically installed with the one-way exhaust valve, and the telescopic tube passes through the core pulling plate and is connected with the casting cavity, and a vacuum pump is fixedly installed on the surface of the one-way exhaust valve, and the vacuum pump performs one-way exhaust on the casting cavity through the cooperation of the one-way exhaust valve and the telescopic tube to draw a vacuum, and at the same time, the bubbles in the molten metal are extracted during casting.

[0009] Preferably, a support frame is installed at the bottom of the electric push rod, and the support frame is fixedly installed on the top of the top template. The output end of the electric push rod passes through the support frame and the top template in sequence and is threadedly connected to the core-pulling plate. The output end of the casting valve tube installed on the top of the top template passes through the top template and the core-pulling plate in sequence and is connected with the casting cavity. The position where the casting valve tube is connected to the casting cavity through the core-pulling plate is near the middle of the short side edge of the casting cavity, and the output end of the casting valve tube is telescopically connected to the core-pulling plate, and can be telescopically changed together with the core-pulling plate under the up and down adjustment of the electric push rod;

[0010] An aluminum frame is installed in the middle of the long side edge of the base plate, and the aluminum frame is fixedly installed between the base plate and the lower mold base by bolts. A cooling fan is fixedly installed in the middle of the side of the aluminum frame facing away from the base plate, and a refrigeration fin is fixedly installed in the middle of the inner side of the aluminum frame, and the refrigeration fin is used for cooling.

[0011] Preferably, the middle position of the bottom of the annular sheet is rotatably connected with a fan blade through a rotating rod, and the fan blade is hoisted in the middle of the inner side of the small bucket tube through the rotating rod at the bottom of the annular sheet;

[0012] A reverse bucket tube is fixedly installed in the middle part of the inner side of the second convex head, and the flared end of the reverse bucket tube points to the inner top of the second convex head, while the contracted end points to the U-shaped cavity. A thin tube is connected between the first convex head and the second convex head, and one end of the thin tube passes through the lower die base and the small bucket tube and is connected to the middle part of the inner side of the small bucket tube, and the other end of the thin tube passes through the lower die base and the reverse bucket tube and is connected to the middle part of the inner side of the reverse bucket tube.

[0013] Preferably, a partition is embedded and installed on the inner side of the aluminum frame, and the partition is installed on the side of the refrigeration fin facing away from the cooling fan, a cooling chamber is formed between the partition and the aluminum frame, an inlet is opened in the middle of the bottom end between the partition and the aluminum frame, and outlets are symmetrically opened at the top corners between the partition and the aluminum frame, a cooling fin is laterally staggeredly connected to the side of the partition facing away from the refrigeration fin, and the cooling fin is used to transfer the low temperature generated by the refrigeration fin to the cooling chamber.

[0014] Preferably, a flat duct is installed at the bottom of the aluminum frame, and the flat duct is used to transport part of the airflow stirred by the cooling fan into the chamber structure between the base plate and the lower mold base, and the flat duct is embedded in the middle of the long side edge of the base plate, and the cross-sectional shape of the flat duct is a curved reflux shape. An air guide port is provided at one end of the flat duct close to the cooling fan, and the air guide port corresponds to the air outlet surface of the cooling fan. An air outlet is provided at one end of the flat duct away from the cooling fan, and the air outlet is connected to the inlet correspondingly. A number of convex ridges are fixedly installed on the side of the air guide port of the flat duct in a linear array, which are used to reinforce the structural strength of the flat duct itself and facilitate the flat duct itself to quickly dissipate the transferred heat. A branch pipe is fixedly connected to one end of the flat duct away from the cooling fan.

[0015] Preferably, an arc-shaped groove is provided in the middle of the long side edge of the bottom plate, and the arc-shaped groove is correspondingly connected to the branch pipe on the flat tube, and the arc-shaped groove is used as a notch for collecting and guiding cold air at the bottom of the inner side of the inner mold core. By utilizing the principle of thermal expansion and contraction, the cold air flow guided by the flat tube into the rectangular groove and the inner side of the inner mold core through the branch pipe can be cooled from bottom to top, so as to drive the heat of the rectangular groove and the inner side of the inner mold core from top to bottom and discharge it from the heat dissipation holes; during this period, the inner mold core and the core plate are also cooled by heat exchange, so that the mold temperature is evenly reduced to reduce the thermal stress and deformation of the casting; the bottom plate is symmetrically provided with heat dissipation holes on one side close to the aluminum frame, and the branch pipe is connected to the heat dissipation holes through the arc-shaped groove and the rectangular groove; the arc-shaped groove provided on the bottom plate Corner blocks are fixedly connected to the corners of the grooves. Similarly, corner blocks are fixedly installed on the corners on the same side of the lower mold base corresponding to the arc-shaped grooves of the bottom plate. The corner blocks provide threaded installation positions for the installation of the aluminum frame between the bottom plate and the lower mold base. An air duct is fixedly installed in the middle of the corner block on the lower mold base, and the cold conduction chamber is connected to the air duct through the guide port. There are two groups of air ducts, which are symmetrically installed on the left and right sides above the arc-shaped grooves, and are used to guide the cold air in the cold conduction chamber into the rectangular groove and the inner mold core through the air duct, and finally the heat of the inner mold core inside the cavity surrounded by the lower mold base and the bottom plate can be uniformly discharged from the two groups of heat dissipation holes symmetrically opened at the long edges of the bottom plate, so as to realize the heat extraction of the rectangular groove and the inner mold core, and realize the rapid cooling of the inner mold core.

[0016] Preferably, right-angle support plates are symmetrically connected to both sides of the bottom end of the support frame, and the right-angle support plates are used to horizontally support the top of the support frame so that the top of the support frame always remains horizontal with the top of the top template. A mounting plate is installed between the two groups of right-angle support plates, and the mounting plate is installed on the support frame by bolts. A right-angle guide plate is installed in the middle of one side of the mounting plate facing the core-pulling plate, and the output end of the electric push rod is penetrated by the middle of the right-angle guide plate, and the right-angle guide plate is used to vertically guide the output end of the electric push rod; the mounting plate is used to provide a vertical mounting platform for the right-angle guide plate on the support frame, so that the right-angle guide plate can always smoothly guide the output end of the electric push rod in the vertical direction, ensuring that the output end of the electric push rod can always drive the core-pulling plate to move up and down inside the surrounding mold body in the vertical direction, thereby ensuring the accuracy of its lifting and lowering adjustment.

[0017] A method for using a casting mold for a sweeper charging stand comprises the following steps:

[0018] Step 1: First, connect with the external heat source through the heat dissipation holes to transport hot air flow into the space surrounded by the bottom plate, the lower mold base, and the inner mold core. Combined with the heat conduction effect, the inner mold core transfers heat to the core plate to complete the residual heat treatment of the inner mold core and the core plate, ensuring that the temperature of the inner mold core and the core plate is uniform, which is conducive to the flow and solidification of the molten metal;

[0019] Step 2: Pour the molten metal evenly into the casting cavity through four sets of pouring valve pipes at the same time to ensure that the molten metal is evenly distributed in the mold, and then set the appropriate cooling time according to the size and material properties of the casting to allow the casting to fully solidify in the casting cavity of the casting mold;

[0020] During this period, the cooling fan on the aluminum frame is activated to rotate, and the refrigeration plate is activated to start cooling. Through the air guide port opened on the flat tube, part of the cold air is introduced into the cooling chamber through the connection between the air outlet and the inlet. Under the secondary cooling effect of the cooling plate, the airflow entering the cooling chamber is further cooled, and then guided by the outlet and the air guide pipe, so that part of the cold air passes through the rectangular groove into the inner side of the inner mold core; the other part of the cold air is guided by the branch pipe and the arc groove and directly introduced into the inner side of the rectangular groove, thereby realizing the cooling of the inner mold core and the core plate, and cooling the entire core component uniformly to avoid deformation caused by thermal stress;

[0021] On the other hand, the U-shaped cavity is connected to an external cold source, and cold air is transported to the inside of the cavity from one end of the U-shaped cavity in a unidirectional manner. The cold air flows through the U-shaped cavity and the thin tube in the cavity between the first convex head and the second convex head to perform heat exchange and cooling on the core plate.

[0022] Step 3: Finally, after cooling is completed, the bolts on the surrounding mold body are twisted off from the threads on the top of the lower mold base to remove the casting that has been cooled and formed in the casting cavity.

[0023] The present invention provides a casting mold and method for a sweeper charging stand, which has the following beneficial effects:

[0024] 1. The casting mold and method of the sweeper charging seat, by activating the extension of the electric push rod, drives the core pulling plate to descend inside the surrounding mold body through the output end of the electric push rod, and at the same time activates the lifting rod to drive the inner mold core to retract with the help of the push head, so that the inner mold core makes the same downward movement on the inside of the surrounding mold body at the same time, thereby the inner mold core can be retracted to the inside of the rectangular groove to adjust the maximum structural height of the top of the charging seat, and can complete the production of different types of sweeper charging seats without changing the specifications of the charging interface components at the bottom of the charging seat to meet the production needs of different types of sweeper charging seats.

[0025] 2. The casting mold and method of the sweeper charging stand first fill the cavity between the core plate and the surrounding mold body with molten metal, and then expel the residual air in the cavity through the one-way exhaust valve through the molten metal. The area between the core plate and the surrounding mold body with a larger casting thickness can be quickly cast first, so that the molten metal can quickly fill the mold, while avoiding the formation of cold shut and flow marks in thin walls.

[0026] 3. The casting mold and method of the sweeper charging stand enable the molten metal to be evenly distributed in the mold, reducing defects such as pores and shrinkage cavities, and can evenly transport the molten metal to each part to avoid local overheating or uneven cooling. It can also reduce casting defects and improve casting quality; and effectively combines the size and shape of the casting, optimizes the pouring time, so that the molten metal can evenly fill the mold in a short time while avoiding premature solidification.

[0027] 4. The casting mold and method of the sweeper charging stand, by combining the Bernoulli principle, can automatically accelerate the flow rate of cold air introduced from the capillary into the first convex head and the small bucket tube when the cold air flows through the bottom of the small bucket tube through the U-shaped cavity, thereby forming an accelerated series flow of cold air between the second convex head and the first convex head, thereby utilizing the second convex head and the first convex head to conduct heat energy on the surface of the core plate to achieve a rapid cooling effect on the core plate, and cooperate with the cooling fan and the refrigeration plate to cool the inner core to jointly shorten the cooling time of the inner core and the core plate, achieve high-speed cooling, improve cooling efficiency, and shorten the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the external structure of a casting mold and method of a sweeper charging stand of the present invention;

[0029] Figure 2 It is a schematic diagram of the partial disassembly structure of the top mold plate and the surrounding mold body of the present invention;

[0030] Figure 3It is a schematic diagram of the partial assembly structure of the inner mold core and the lower mold base of the present invention;

[0031] Figure 4 It is a schematic diagram of the partial assembly structure of the lifting rod through the lower mold base and the inner mold core of the present invention;

[0032] Figure 5 It is a partial structural sectional view of the lower die base of the present invention;

[0033] Figure 6 It is a schematic diagram of the internal structure of the first convex head and the second convex head of the present invention;

[0034] Figure 7 It is a schematic diagram of the assembly structure of the one-way exhaust valve and the top template of the present invention;

[0035] Figure 8 It is a schematic diagram of the partial assembly structure of the aluminum frame of the present invention through the lower mold base and the inner mold core;

[0036] Fig. 9 It is a schematic diagram of the partial assembly structure of the aluminum frame and the flat pipe of the present invention;

[0037] Fig.10 It is a schematic diagram of the partial disassembly structure of the cooling fan, the bottom plate and the lower mold base of the present invention;

[0038] Fig.11 It is a schematic diagram of the disassembled structure of the aluminum frame and the cooling fin of the present invention;

[0039] Fig.12 It is a schematic diagram of the assembly structure of the electric push rod and the support frame of the present invention;

[0040] Fig.13 Based Figure 8 A left side view of the structure shown in;

[0041] Fig.14 It is a schematic diagram of the partial assembly structure of the bottom plate and the lower mold base of the present invention;

[0042] Fig.15 It is a schematic diagram of the middle section structure of the flat conduit of the present invention;

[0043] Fig.16 It is a partial structural cross-sectional view of the pouring valve tube of the present invention when it is connected with the casting cavity.

[0044] In the figure: 1, bottom plate; 2, lower mold base; 3, surrounding mold body; 4, top mold plate; 5, inner mold core; 6, mold core plate; 7, core pulling plate; 8, casting valve tube; 9, one-way exhaust valve; 11, electric push rod; 12, support frame; 13, lifting rod; 14, push head; 15, telescopic tube; 16, vacuum pump; 17, aluminum frame; 18, cooling fan; 19, flat guide tube; 20, cooling plate; 101, arc groove; 102, heat dissipation hole; 103, corner block; 104, Air guide tube; 21. rectangular groove; 22. U-shaped cavity; 23. first convex head; 24. second convex head; 25. small bucket tube; 26. annular plate; 27. fan blade; 28. reverse bucket tube; 29. ​​thin tube; 121. right-angle support plate; 122. mounting plate; 123. right-angle guide plate; 171. partition plate; 172. guide outlet; 173. guide outlet; 174. cooling plate; 191. air guide port; 192. air outlet; 193. ridge; 194. branch pipe. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0046] The first embodiment, as Figures 1 to 16 As shown, the present invention provides a technical solution: a casting mold and method for a charging seat for a sweeping machine, comprising a bottom plate 1, the bottom of the bottom plate 1 is provided with a T-shaped slot in a linear array, a lower mold base 2 is installed on the top of the bottom plate 1, a surrounding mold body 3 is installed on the top of the lower mold base 2 through bolt sealing, a top mold plate 4 is encapsulated on the top of the surrounding mold body 3, an inner mold core 5 is installed on the inner side of the surrounding mold body 3, a mold core plate 6 is installed between the lower mold base 2 and the surrounding mold body 3, a core pulling plate 7 is installed on the top of the inner mold core 5, a casting valve pipe 8 is threadedly connected to the middle of the left and right sides of the surrounding mold body 3 and the middle of the left and right sides of the top of the top mold plate 4, the casting valve pipe 8 is used to inject molten metal, and the number of the casting valve pipes 8 is four groups, a one-way exhaust valve 9 is threadedly installed on the middle of the top of the top mold plate 4, the one-way exhaust valve 9 is used to exhaust the air in the casting cavity in one direction, and electric push rods 11 are symmetrically installed on the left and right sides of the top of the top mold plate 4, and the number of the electric push rods 11 is two groups;

[0047] A rectangular groove 21 is provided through the middle position of the top of the lower die base 2, and the inner mold core 5 is embedded in the lower die base 2 through the rectangular groove 21. The side of the lower die base 2 facing away from the cooling fan 18 is symmetrically provided with two U-shaped cavities 22. A first protrusion 23 is fixedly installed on the top of the lower die base 2 and away from the cooling fan 18. A second protrusion 24 is fixedly installed on the top of the lower die base 2 and on one side of the short side of the lower die base 2. The first protrusion 23 and the second protrusion 24 are both embedded with the surrounding mold body 3. The first protrusion 23 and the second protrusion 24 both penetrate the lower die base 2 and are connected with the U-shaped cavity 22. A small bucket tube 25 is fixedly installed in the middle of the inner wall surface of the first protrusion 23, and the flared end of the small bucket tube 25 points to the inner top of the first protrusion 23, and the contracted end points to the U-shaped cavity 22. An annular sheet 26 is fixedly installed on the inner top of the first protrusion 23 and the second protrusion 24.

[0048] A latch is inserted into the side of the top mold plate 4, and the top mold plate 4 is assembled on the top of the surrounding mold body 3 through the latch, and the core plate 6 is fitted with the inner mold core 5, and the core plate 6 is installed on the top of the lower mold base 2 through bolts, and the inner mold core 5 and the core plate 6 together constitute a core piece, and a casting cavity is formed between the core piece and the lower mold base 2, the surrounding mold body 3 and the top mold plate 4, which is used to shape the molten metal into a charging seat for the sweeper;

[0049] The core pulling plate 7 is installed between the top mold plate 4 and the inner mold core 5, two groups of electric push rods 11 are installed between the two groups of casting valve tubes 8 on the top of the top mold plate 4, and the electric push rods 11 and the casting valve tubes 8 are installed together on the same horizontal axis, and the casting valve tubes 8 installed on the surrounding mold body 3 are installed in the lower middle part of the surrounding mold body 3.

[0050] A lifting rod 13 is installed on the inner side of the inner mold core 5 in a left-right symmetrical shape, and the lifting rod 13 is installed in an embedded manner with the base plate 1. The output end of the lifting rod 13 is threadedly connected with a push head 14, and the push head 14 is fixedly installed on the inner mold core 5. The inner mold core 5 is lifted and installed with the base plate 1 through the cooperation of the lifting rod 13 and the push head 14. The surface of the push head 14 is fixedly connected with ribs in a circular array shape, which increases the heat dissipation area of ​​the push head 14, and increases the heat dissipation from the casting cavity to the inner space where the inner mold core 5 is located through the push head 14; a telescopic tube 15 is connected to the bottom of the one-way exhaust valve 9, and the telescopic tube 15 is telescopically installed with the one-way exhaust valve 9, and the telescopic tube 15 passes through the core pulling plate 7 and is connected with the casting cavity, and a vacuum pump 16 is fixedly installed on the surface of the one-way exhaust valve 9, and the vacuum pump 16 cooperates with the one-way exhaust valve 9 and the telescopic tube 15 to evacuate the casting cavity in one direction to form a vacuum, and at the same time, during casting, the bubbles in the molten metal are extracted.

[0051] A support frame 12 is installed at the bottom of the electric push rod 11, and the support frame 12 is fixedly installed on the top of the top template 4. The output end of the electric push rod 11 passes through the support frame 12 and the top template 4 in sequence and is threadedly connected to the core-pulling plate 7. The pouring valve tube 8 installed on the top of the top template 4, its output end passes through the top template 4 and the core-pulling plate 7 in sequence and is connected with the casting cavity, and the pouring valve tube 8 is connected to the casting cavity through the core-pulling plate 7. The position is near the middle of the short side edge of the casting cavity, and the output end of the pouring valve tube 8 is telescopically connected with the core-pulling plate 7, and can be telescopically changed together with the core-pulling plate 7 under the up and down adjustment of the electric push rod 11;

[0052] An aluminum frame 17 is installed in the middle of the long side edge of the base plate 1, and the aluminum frame 17 is fixedly installed between the base plate 1 and the lower mold base 2 by bolts. A cooling fan 18 is fixedly installed in the middle of the side of the aluminum frame 17 facing away from the base plate 1, and a refrigeration fin 20 is fixedly installed in the middle of the inner side of the aluminum frame 17, and the refrigeration fin 20 is used for cooling; the aluminum frame 17 is used as a structure for dissipating heat of the cooling fan 18, and at the same time, it also acts as a component that can dissipate heat outward when the aluminum frame 17 contacts with the rectangular groove 21 and the hot air flow inside the inner mold core 5, thereby assisting the mold in dissipating, guiding and cooling the excess heat inside it.

[0053] A partition 171 is embedded and installed on the inner side of the aluminum frame 17, and the partition 171 is installed on the side of the refrigeration fin 20 away from the cooling fan 18, and a cold conduction chamber is formed between the partition 171 and the aluminum frame 17. An inlet 173 is opened in the middle of the bottom end between the partition 171 and the aluminum frame 17, and outlets 172 are symmetrically opened at the top corners between the partition 171 and the aluminum frame 17. A cold conduction fin 174 is laterally staggered and connected to the side of the partition 171 away from the refrigeration fin 20, and the cold conduction fin 174 is used to transfer the low temperature generated by the refrigeration fin 20 to the cold conduction chamber.

[0054] A flat tube 19 is installed at the bottom of the aluminum frame 17, and the flat tube 19 is embedded in the middle of the long edge of the base plate 1. The cross-sectional shape of the flat tube 19 is a curved reflux shape. An air guide port 191 is provided at one end of the flat tube 19 close to the cooling fan 18, and the air guide port 191 corresponds to the air outlet surface of the cooling fan 18. An air outlet 192 is provided at one end of the flat tube 19 away from the cooling fan 18, and the air outlet 192 is correspondingly connected to the inlet 173. A convex ridge 193 is fixedly installed on the side of the air guide port 191 of the flat tube 19 in a linear array, and a branch pipe 194 is fixedly connected to one end of the flat tube 19 away from the cooling fan 18.

[0055] An arc-shaped groove 101 is provided in the middle of the long edge of the bottom plate 1, and the arc-shaped groove 101 is correspondingly connected to the branch pipe 194 on the flat tube 19. A heat dissipation hole 102 is provided on one side of the bottom plate 1 close to the aluminum frame 17 in a bilaterally symmetrical manner, and the branch pipe 194 is connected to the heat dissipation hole 102 through the arc-shaped groove 101 and the rectangular groove 21. The corner position of the arc-shaped groove 101 provided on the bottom plate 1 is fixedly connected with a corner block 103. Similarly, a corner block 103 is also fixedly installed on the corner of the same side of the lower die base 2 corresponding to the arc-shaped groove 101 of the bottom plate 1, and a threaded installation is provided for the installation of the aluminum frame 17 between the bottom plate 1 and the lower die base 2 through the corner block 103. The air duct 104 is fixedly installed in the middle of the corner block 103 on the lower mold base 2, and the cold conduction chamber is connected with the air duct 104 through the guide port 172. There are two groups of air ducts 104, which are symmetrically installed on the left and right sides above the arc groove 101, and are used to guide the cold air in the cold conduction chamber into the rectangular groove 21 and the inner mold core 5 through the air duct 104, and finally make the heat of the inner mold core 5 through the inside of the cavity surrounded by the lower mold base 2 and the bottom plate 1 flow out uniformly from the two groups of heat dissipation holes 102 symmetrically opened at the long edges of the bottom plate 1, so as to realize the heat extraction of the rectangular groove 21 and the inner mold core 5, and realize the rapid cooling of the inner mold core 5.

[0056] Right-angle support plates 121 are symmetrically connected to both sides of the bottom end of the support frame 12, a mounting plate 122 is installed between the two groups of right-angle support plates 121, and the mounting plate 122 is installed on the support frame 12 by bolts, and a right-angle guide plate 123 is installed in the middle of one side of the mounting plate 122 facing the core-pulling plate 7, and the output end of the electric push rod 11 is penetrated by the middle of the right-angle guide plate 123, and the right-angle guide plate 123 is used to vertically guide the output end of the electric push rod 11.

[0057] When in use, it is first connected to the external heat source through the heat dissipation hole 102, and a hot air flow is transported to the space surrounded by the bottom plate 1, the lower mold base 2, and the inner mold core 5. Combined with the heat conduction effect, the inner mold core 5 transfers heat to the core plate 6 to complete the residual heat treatment of the inner mold core 5 and the core plate 6, ensuring that the temperature of the inner mold core 5 and the core plate 6 is uniform, and ensuring that the temperature of each part of the mold is consistent, which is conducive to the flow and solidification of the molten metal; at the same time, the molten metal is evenly poured into the casting cavity through four groups of pouring valve pipes 8 to ensure that the molten metal is evenly distributed in the mold, and then according to the size of the casting and the properties of the material, an appropriate cooling time is set to allow the casting to fully solidify in the casting cavity of the casting mold.

[0058] During this period, by starting the cooling fan 18 on the aluminum frame 17 to rotate, the refrigeration plate 20 is started to start cooling, and through the air guide port 191 opened on the flat tube 19, part of the cold air is introduced into the cooling chamber through the connection between the air outlet 192 and the inlet 173, and under the secondary cooling effect of the cooling plate 174, the airflow entering the cooling chamber is further cooled, and then guided by the outlet 172 and the air guide pipe 104, so that part of the cold air enters the inner side of the inner mold core 5 through the rectangular groove 21; the other part of the cold air is guided by the branch pipe 194 and the arc groove 101, directly It is introduced into the inner side of the rectangular groove 21, so as to realize the cooling of the inner mold core 5 and the core plate 6, and evenly cool the entire core part to avoid deformation caused by thermal stress; on the other hand, it is connected to the external cold source through the U-shaped cavity 22, and cold air is transported to the inside of it in a unidirectional manner from one end of the U-shaped cavity 22. The cold air flows in the cavity between the first protrusion 23 and the second protrusion 24 through the U-shaped cavity 22 and the thin tube 29, so as to exchange heat and cool the core plate 6; finally, after the cooling is completed, the bolts on the surrounding mold body 3 are twisted and removed from the top thread of the lower mold base 2, and the casting cooled and formed in the casting cavity can be taken out.

[0059] During use, the electric push rod 11 can be activated to extend, and the core-pulling plate 7 can be driven to descend on the inside of the surrounding mold body 3 through the output end of the electric push rod 11. At the same time, the lifting rod 13 can be activated with the help of the push head 14 to drive the inner mold core 5 to retract, so that the inner mold core 5 can synchronously perform the same amplitude of descending movement on the inside of the surrounding mold body 3. In this way, the inner mold core 5 can be retracted to the inside of the rectangular groove 21 to adjust the maximum structural height of the top of the charging seat. The production of different types of sweeper charging seats can be completed without changing the specifications of the charging interface components at the bottom of the charging seat. The production needs of different types of sweeper charging seats can be met; through the coordinated use of the above-mentioned structure, the replaceable performance of the traditional core parts is changed, so that the mold itself can be adaptively adjusted to the corresponding model of the sweeper charging seat to be cast according to different needs, so as to achieve rapid adjustment and adaptation of the core parts, greatly improve the flexibility and applicability of the mold, and reduce the time and cost of replacing the mold during the production process.

[0060] By installing the pouring valve tube 8 symmetrically at the left and right ends of the surrounding mold body 3 and the left and right sides of the top of the top mold plate 4, and combining the specific installation position of the pouring valve tube 8 installed on the top of the top mold plate 4, the structural position is set near the middle of the short side edge of the casting cavity. For details, refer to Fig.16It can be known that the molten metal is poured into the casting cavity through the pouring valve tube 8 on the top of the top mold plate 4, and the molten metal is poured from the middle of the short edge of the top of the inner mold core 5, so that the molten metal is guided by the short edge of the inner mold core 5 and under the action of gravity, first comes to the bottom of the casting cavity, and cooperates with the pouring valve tube 8 on the surrounding mold body 3 to first fill the cavity between the core plate 6 and the surrounding mold body 3 with the molten metal, and the residual air in the cavity here is discharged by the one-way exhaust valve 9 through the driving of the molten metal, so that the area with a larger casting thickness such as the area between the core plate 6 and the surrounding mold body 3 can be quickly poured first, so that the molten metal can quickly fill the mold, while avoiding the formation of cold shut and flow marks at the thin wall;

[0061] At the same time, four groups of pouring valve tubes 8 are used to jointly pour at a uniform speed into the casting cavity to balance the pouring of the space enclosed by the inner mold core 5 and the surrounding mold body 3. Through this symmetrically distributed pouring port design, the molten metal can be evenly distributed in the mold, reducing air holes and shrinkage defects, and can evenly transport the molten metal to each part to avoid local overheating or uneven cooling. It can also reduce casting defects and improve the quality of castings; and it effectively combines the size and shape of the casting, optimizes the pouring time, and enables the molten metal to evenly fill the mold in a short time while avoiding premature solidification.

[0062] Using four sets of identical pouring valve tubes 8 to guide the pouring of molten metal can ensure that the flow channel cross-sectional area of ​​each gate is the same, ensure the flow consistency of the molten metal pouring into the casting cavity, and facilitate the control of the distribution of the molten metal in the mold.

[0063] During use, the inside of the casting cavity can be evacuated by activating the vacuum pump 16, and molten metal can be poured in at the same time. This vacuum-assisted pouring method can be used to reduce the pressure in the mold, promote the flow and exhaust of the molten metal, ensure that the gas generated by the molten metal during the pouring process can be discharged smoothly, prevent the gas from being trapped in the mold to form pores, remove the gas in the mold, reduce pore defects, and improve the quality of the casting.

[0064] During the pouring of molten metal into the casting cavity, the electric push rod 11 can be used to drive the core pulling plate 7 to move vertically downward. The downward pressure of the core pulling plate 7 and the only exhaust channel provided by the one-way exhaust valve 9 can be used to speed up the discharge of gas in the molten metal to the outside of the mold, helping the molten metal that gradually fills the casting cavity to quickly discharge the gas inside it, thereby helping to accelerate the filling efficiency of the molten metal in the casting cavity.

[0065] While cooling the casting, an external cold source is introduced into the U-shaped cavity 22 through one end of the U-shaped cavity 22 and outputted from the other end of the U-shaped cavity 22; that is, a cold air flow is introduced from the U-shaped cavity 22 at one end close to the second convex head 24 and outputted from one end close to the first convex head 23, so that the cold air flow first enters the interior of the second convex head 24 through the U-shaped cavity 22, and under the centralized guidance of the reverse tube 28, the cold air flow is used to centrally cool the annular sheet 26 inside the second convex head 24;

[0066] When the cooling fan 18 and the refrigeration plate 20 are activated to cool the inner mold core 5, the heat conduction effect of the contact area between the core plate 6 and the inner mold core 5 can be utilized to conduct part of the heat energy on the core plate 6 to the inner mold core 5, so that the inner side of the inner mold core 5 can actively share part of the heat energy on the core plate 6 during the cooling and heat dissipation period, and effectively utilize the structural characteristics of the casting. The inner mold core 5 acts as a medium for the heat dissipation of the core plate 6 to assist in accelerating the overall heat dissipation effect of the casting, so that the overall temperature of the casting can change evenly, so as to achieve the best condensation effect of the molten metal and avoid the occurrence of local thermal stress and deformation problems of the casting.

[0067] During the activation of the cooling fan 18 and the cooling sheet 20, not only can the aluminum frame 17 itself be used as a conductive contact medium for heat energy, but the cooling fan 18 can also dissipate the heat of the aluminum frame 17 itself to the outside of the mold; the cooling effect of the cooling sheet 20 can also be used to return part of the cold air flow driven by the cooling fan 18 to the cooling chamber through the flat tube 19, so that part of the cold air flow directly passes through the branch pipe 194 to the inner side of the rectangular groove 21 and the inner mold core 5, first pre-cooling the inner side of the inner mold core 5, and at the same time, the cooling sheet 20 is used to cool the inner side of the inner mold core 5. The cold effect is guided into the cold chamber again, so that the cold air flow guided by the flat duct 19 is fully in contact with the cold guide plate 174. After being cooled for the second time, it is transported into the rectangular groove 21 and the inner side of the inner mold core 5 through the air guide pipe 104 on the corner block 103, and the heat gathered on the inner side of the inner mold core 5 is discharged through the heat dissipation hole 102. At the same time, the inner mold core 5 is quickly cooled by heat exchange, and the lifting rod 13 and the push head 14 on the inner side of the inner mold core 5 are also cooled, ensuring that both are always within the normal working temperature range.

[0068] The second embodiment is based on the first embodiment. Figure 5 and Figure 6 As shown, the middle position of the bottom of the annular piece 26 is rotatably connected to a fan blade 27 through a rotating rod, and the fan blade 27 is hoisted to the middle part of the inner side of the small bucket tube 25 through the rotating rod at the bottom of the annular piece 26;

[0069] A reverse bucket tube 28 is fixedly installed in the middle part of the inner side of the second convex head 24, and the expanded end of the reverse bucket tube 28 points to the inner top of the second convex head 24, while the contracted end points to the U-shaped cavity 22. A thin tube 29 is connected between the first convex head 23 and the second convex head 24, and one end of the thin tube 29 passes through the lower mold base 2 and the small bucket tube 25 and is connected to the middle part of the inner side of the small bucket tube 25, and the other end of the thin tube 29 passes through the lower mold base 2 and the reverse bucket tube 28 and is connected to the middle part of the inner side of the reverse bucket tube 28.

[0070] When in use, the capillary 29 can be used to divert and guide the cold air flow, so that the fan blades 27 suspended inside the second convex head 24 can rotate under the impetus of the unidirectional flow of the air flow, thereby autonomously accelerating the cold air flow to cool the internal heat inside the second convex head 24; part of the cold air flow enters the semi-enclosed space surrounded by the first convex head 23 and the small bucket tube 25 through the capillary 29, and the air flow guided by the capillary 29 is used to boost the fan blades 27 inside the first convex head 23, so that the fan blades 27 inside the first convex head 23 also rotate, so that the fan blades 27 produce a downward blowing effect, and the participating heat energy inside the first convex head 23 is guided to the U-shaped cavity 22; combined with the U-shaped conveying path of the cold air flow in the U-shaped cavity 22, based on the capillary 2 9 is less than the diameter guide amount of the U-shaped cavity 22, by combining the Bernoulli principle, when the cold air flows through the U-shaped cavity 22 through the bottom of the small bucket tube 25, it can autonomously accelerate the flow rate of the cold air introduced from the capillary 29 into the space between the first convex head 23 and the small bucket tube 25, thereby forming an accelerated series flow of the cold air flow between the second convex head 24 and the first convex head 23, thereby utilizing the second convex head 24 and the first convex head 23 to conduct heat energy on the surface of the core plate 6 to achieve a rapid cooling effect on the core plate 6, and cooperate with the cooling fan 18 and the refrigeration plate 20 to cool the inner core 5, so as to jointly shorten the cooling time of the inner core 5 and the core plate 6, achieve high-speed cooling, improve cooling efficiency, and shorten the production cycle.

[0071] That is to say, the first protrusion 23 and the second protrusion 24 not only serve as the installation positioning and alignment structure of the core plate 6 on the lower die base 2, but also serve as a functional structure for conducting the surface heat energy of the core plate 6 and cooling the surface of the core plate 6; and the U-shaped cavity 22 opened on the lower die base 2 here not only supports the air cooling method, but also supports the heat dissipation and cooling method of liquid cooling, and can be adaptively selected and adjusted according to the specific casting conditions, so as to achieve the best casting effect. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should belong to the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A casting mold for a sweeping machine charging stand, comprising a bottom plate (1), wherein the bottom of the bottom plate (1) is provided with T-shaped slots in a linear array, and wherein: A lower mold base (2) is installed on the top of the bottom plate (1); a surrounding mold body (3) is installed on the top of the lower mold base (2) through bolt sealing; a top mold plate (4) is encapsulated on the top of the surrounding mold body (3); an inner mold core (5) is installed on the inner side of the surrounding mold body (3); a mold core plate (6) is installed between the lower mold base (2) and the surrounding mold body (3); a core pull plate (7) is installed on the top of the inner mold core (5); a casting valve tube (8) is threadedly connected to the middle of the left and right sides of the surrounding mold body (3) and the middle of the left and right sides of the top of the top mold plate (4); a one-way exhaust valve (9) is threadedly installed in the middle of the top of the top mold plate (4); and electric push rods (11) are symmetrically installed on the left and right sides of the top of the top mold plate (4); A rectangular groove (21) is provided through the middle of the top of the lower mold base (2), and the inner mold core (5) is mounted in the lower mold base (2) through the rectangular groove (21). A U-shaped cavity (22) is provided in a bilaterally symmetrical manner on a side of the lower mold base (2) facing away from the cooling fan (18). A first convex head (23) is fixedly installed on the top of the lower mold base (2) and on a side away from the cooling fan (18). A second convex head (24) is fixedly installed on the top of the lower mold base (2) and on a side of the short side of the lower mold base (2). The first convex head The first protrusion (23) and the second protrusion (24) are both mounted in an engaging manner with the surrounding mold body (3); the first protrusion (23) and the second protrusion (24) both penetrate the lower mold base (2) and are connected to the U-shaped cavity (22); a small bucket tube (25) is fixedly mounted on the middle of the inner wall surface of the first protrusion (23); the expanded end of the small bucket tube (25) points to the inner top of the first protrusion (23), while the contracted end points to the U-shaped cavity (22); and an annular sheet (26) is fixedly mounted on the inner top of the first protrusion (23) and the second protrusion (24).

2. The casting mold of the sweeper charging stand according to claim 1, characterized in that: The top mold plate (4) is provided with a latch on the side thereof, the top mold plate (4) is assembled on the top of the surrounding mold body (3) by means of the latch, the core plate (6) is fitted with the inner mold core (5), and the core plate (6) is mounted on the top of the lower mold base (2) by means of bolts, the inner mold core (5) and the core plate (6) together constitute a core mold piece, and a casting cavity is formed between the core mold piece and the lower mold base (2), the surrounding mold body (3) and the top mold plate (4); The core pulling plate (7) is installed between the top mold plate (4) and the inner mold core (5), the two sets of electric push rods (11) are installed between the two sets of casting valve tubes (8) on the top of the top mold plate (4), and the electric push rods (11) and the casting valve tubes (8) are installed together on the same horizontal axis, and the casting valve tubes (8) installed on the surrounding mold body (3) are installed at a position slightly lower than the middle of the surrounding mold body (3).

3. The casting mold of the sweeper charging stand according to claim 2, characterized in that: The inner side of the inner mold core (5) is symmetrically provided with a lifting rod (13), and the lifting rod (13) is fitted with the bottom plate (1). The output end of the lifting rod (13) is threadedly connected with a push head (14), and the push head (14) is fixedly installed on the inner mold core (5). The inner mold core (5) is lifted and installed with the bottom plate (1) through the cooperation of the lifting rod (13) and the push head (14), and the surface of the push head (14) is fixedly connected with ribs in a circular array shape; the bottom of the one-way exhaust valve (9) is connected with a telescopic tube (15), and the telescopic tube (15) is telescopically installed with the one-way exhaust valve (9), and the telescopic tube (15) passes through the core pulling plate (7) and is connected with the casting cavity; a vacuum pump (16) is fixedly installed on the surface of the one-way exhaust valve (9), and the vacuum pump (16) exhausts air from the casting cavity through the cooperation of the one-way exhaust valve (9) and the telescopic tube (15).

4. The casting mold of the sweeper charging stand according to claim 3, characterized in that: A support frame (12) is installed at the bottom of the electric push rod (11), and the support frame (12) is fixedly installed on the top of the top mold plate (4). The output end of the electric push rod (11) passes through the support frame (12) and the top mold plate (4) in sequence and is threadedly connected to the core pulling plate (7). The pouring valve tube (8) installed on the top of the top mold plate (4) has its output end passing through the top mold plate (4) and the core pulling plate (7) in sequence and is connected to the casting cavity. The pouring valve tube (8) is connected to the casting cavity through the core pulling plate (7) at a position near the middle of the short side edge of the casting cavity, and the output end of the pouring valve tube (8) is telescopically connected to the core pulling plate (7); An aluminum frame (17) is installed in the middle of the long side edge of the base plate (1), and the aluminum frame (17) is fixedly installed between the base plate (1) and the lower mold base (2) by means of bolts. A cooling fan (18) is fixedly installed in the middle of a side of the aluminum frame (17) facing away from the base plate (1), and a cooling fin (20) is fixedly installed in the middle of the inner side of the aluminum frame (17).

5. The casting mold of the sweeper charging stand according to claim 4, characterized in that: The middle position of the bottom of the annular plate (26) is rotatably connected to a fan blade (27) via a rotating rod, and the fan blade (27) is hoisted to the middle part of the inner side of the small bucket tube (25) via the rotating rod at the bottom of the annular plate (26); A reverse bucket tube (28) is fixedly mounted in the middle of the inner side of the second convex head (24), and the expanded end of the reverse bucket tube (28) points to the inner top of the second convex head (24), while the contracted end points to the U-shaped cavity (22). A thin tube (29) is connected between the first convex head (23) and the second convex head (24), and one end of the thin tube (29) passes through the lower die base (2) and the small bucket tube (25) and is connected to the middle of the inner side of the small bucket tube (25), and the other end of the thin tube (29) passes through the lower die base (2) and the reverse bucket tube (28) and is connected to the middle of the inner side of the reverse bucket tube (28).

6. The casting mold of the sweeper charging stand according to claim 5, characterized in that: A partition (171) is embedded and installed on the inner side of the aluminum frame (17), and the partition (171) is installed on the side of the refrigeration fin (20) facing away from the cooling fan (18), a cooling chamber is formed between the partition (171) and the aluminum frame (17), an inlet (173) is opened in the middle of the bottom end between the partition (171) and the aluminum frame (17), and outlets (172) are symmetrically opened at the top corners between the partition (171) and the aluminum frame (17), and a cooling fin (174) is connected to the side of the partition (171) facing away from the refrigeration fin (20) in a transversely offset manner.

7. The casting mold of the sweeper charging stand according to claim 6, characterized in that: A flat duct (19) is installed at the bottom of the aluminum frame (17), and the flat duct (19) is embedded in the middle of the long edge of the bottom plate (1). The cross-sectional shape of the flat duct (19) is a curved reflux shape. An air guide port (191) is provided at one end of the flat duct (19) close to the cooling fan (18), and the air guide port (191) corresponds to the air outlet surface of the cooling fan (18). An air outlet (192) is provided at one end of the flat duct (19) away from the cooling fan (18), and the air outlet (192) is correspondingly connected to the inlet (173). A convex ridge (193) is fixedly installed on the side of the air guide port (191) of the flat duct (19) in a linear array shape. A branch pipe (194) is fixedly connected to one end of the flat duct (19) away from the cooling fan (18).

8. The casting mold of the sweeper charging stand according to claim 7, characterized in that: An arc-shaped groove (101) is provided in the middle of the long side edge of the bottom plate (1), and the arc-shaped groove (101) is correspondingly connected to the branch pipe (194) on the flat guide tube (19); a side of the bottom plate (1) close to the aluminum frame (17) is provided with a heat dissipation hole (102) in a bilaterally symmetrical manner, and the branch pipe (194) is connected to the heat dissipation hole (102) through the arc-shaped groove (101) and the rectangular groove (21); a corner block (103) is fixedly connected to the corner position of the arc-shaped groove (101) provided on the bottom plate (1); similarly, a corner block (103) is fixedly installed on the corner of the lower mold base (2) on the same side corresponding to the arc-shaped groove (101) of the bottom plate (1); an air guide pipe (104) is fixedly installed in the middle of the corner block (103) on the lower mold base (2), and the cold guide chamber is connected to the air guide pipe (104) through the guide outlet (172).

9. The casting mold of the sweeper charging stand according to claim 8, characterized in that: Right-angle support plates (121) are symmetrically connected to both sides of the bottom end of the support frame (12), a mounting plate (122) is installed between two groups of the right-angle support plates (121), and the mounting plate (122) is installed on the support frame (12) by bolts, a right-angle guide plate (123) is installed in the middle of one side of the mounting plate (122) facing the core-pulling plate (7), and the output end of the electric push rod (11) and the middle of the right-angle guide plate (123) are intersected.

10. A method for using the casting mold of the sweeper charging stand according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: first, the heat source is connected to the outside through the heat dissipation hole (102), and a hot air flow is delivered to the space enclosed by the bottom plate (1), the lower mold base (2), and the inner mold core (5), and the inner mold core (5) transfers heat to the core plate (6), thereby completing the residual heat treatment of the inner mold core (5) and the core plate (6), and ensuring that the temperature of the inner mold core (5) and the core plate (6) is uniform; Step 2: pouring molten metal evenly into the casting cavity through four sets of pouring valve pipes (8) at the same time, and then setting an appropriate cooling time according to the size and material properties of the casting to allow the casting to fully solidify in the casting cavity of the casting mold; During this period, the cooling fan (18) on the aluminum frame (17) is activated to rotate, and the refrigeration plate (20) is activated to start cooling. Through the air guide port (191) opened on the flat tube (19), part of the cold air is introduced into the cooling chamber through the connection between the air outlet (192) and the inlet (173), and under the secondary cooling effect of the cooling plate (174), the airflow entering the cooling chamber is further cooled, and then guided by the outlet (172) and the air guide pipe (104), so that part of the cold air enters the inner side of the inner mold core (5) through the rectangular groove (21); the other part of the cold air is guided by the branch pipe (194) and the arc groove (101) and directly introduced into the inner side of the rectangular groove (21), thereby cooling the inner mold core (5) and the core plate (6); On the other hand, the U-shaped cavity (22) is connected to an external cold source, and cold air is transported unidirectionally to the interior of the U-shaped cavity (22) from one end thereof. The cold air flows through the U-shaped cavity (22) and the thin tube (29) in the cavity between the first protrusion (23) and the second protrusion (24), thereby performing heat exchange and cooling on the core plate (6). Step three: Finally, after cooling is completed, the bolts on the surrounding mold body (3) are twisted and removed from the top thread of the lower mold base (2), and the casting cooled and formed in the casting cavity can be taken out.

Images