Sand shooting plate assembly of sand shooting device for core making machine

Abstract

The utility model relates to a sand shooting plate assembly of a sand shooting device for a core making machine. The sand shooting plate assembly comprises a sand shooting plate, an annular sealing gasket, a sand baffle, a spacing supporting piece, a fastening screw, a sand shooting nozzle and a sand plugging head, a plurality of assembly holes are uniformly formed in the sand shooting plate, annular sealing gaskets are detachably mounted in the assembly holes, sand shooting nozzles are detachably mounted in the assembly holes to be subjected to sand shooting, sand plugging heads are detachably mounted in the other assembly holes, and the tops of the sand plugging heads and the tops of the sand shooting nozzles are in contact with the bottoms of the corresponding annular sealing gaskets; the sand blocking plate is arranged above the sand shooting plate, the interval supporting piece is arranged between the sand blocking plate and the sand shooting plate, and the sand blocking plate and the sand shooting plate are detachably and fixedly connected through a fastening screw. During production changing, the sand shooting plate and residual sand in the sand bin of the sand shooting device do not need to be disassembled and assembled, only the position of the sand shooting nozzle needs to be adjusted, convenience and rapidness are achieved, meanwhile, one set of sand shooting plate is prevented from being arranged on each set of core box, and the manufacturing cost is effectively saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to core making equipment technical field, concretely relates to a core making machine is with the sand shooting device's core making machine is with the sand shooting device's sand shooting plate subassembly. BACKGROUND

[0002] Some key parts of automobile engine have complex structure cavity, generally adopt sand casting mode to obtain, such as automobile engine exhaust manifold, turbocharger box, cylinder block cylinder cover all have complex cavity, need sand core forming, however sand core manufacturing generally adopts film sand heating forming or cold core forming, therefore need to manufacture sand core hot core box or cold core box and corresponding core making equipment.

[0003] Core making equipment is equipped with sand shooting device, sand shooting device includes sand bin, the bottom of sand bin is detachably fixed with sand shooting plate subassembly, sand shooting plate subassembly is equipped with sand shooting nozzle, is used for shooting sand, and sand shooting plate is often equipped for manufacturing sand core hot core box or cold core box, in principle a core box is equipped with a sand shooting plate, the reason is that each sand core structure, size, size, shape etc. Utility model content

[0004] The utility model discloses a kind of sand shooting plate subassembly of core making machine sand shooting device, when change production, it is not necessary to disassemble sand shooting plate and empty sand bin of sand shooting device, only need to adjust the position of sand shooting nozzle, it is convenient and fast, simultaneously avoid each core box is equipped with a sand shooting plate, effectively save manufacturing cost.

[0005] The technical scheme that the utility model adopts is as follows:

[0006] A sand shooting plate assembly of a sand shooting device for a core making machine, comprising a sand shooting plate, a ring-shaped sealing gasket, a sand blocking plate, a spacing support, a fastening screw, a sand shooting nozzle, and a sand blocking head; the sand shooting plate is uniformly provided with a plurality of assembly holes; the ring-shaped sealing gasket is detachably installed in the assembly holes; the sand shooting nozzle is detachably installed in the assembly holes to be shot; the sand blocking head is detachably installed in the remaining assembly holes; the top of the sand shooting nozzle and the top of the sand blocking head are in contact with the bottom of the corresponding ring-shaped sealing gasket; the inner wall of the assembly hole is provided with an internal thread; the outer wall of the sand shooting nozzle and the outer wall of the sand blocking head are provided with external threads; the sand blocking plate is arranged above the sand shooting plate; the spacing support is arranged between the sand blocking plate and the sand shooting plate; and the sand blocking plate and the sand shooting plate are detachably fixedly connected through the fastening screw.

[0007] Further, the assembly holes on the sand shooting plate are provided as stepped holes, and the ring-shaped sealing gasket is arranged at the step of the assembly holes on the sand shooting plate.

[0008] Further, the sand blocking plate and the sand shooting plate are provided with a plurality of fixed mounting holes, and the fastening screw is fastened in the fixed mounting holes on the sand blocking plate, the spacing support, and the fixed mounting holes on the sand shooting plate.

[0009] Further, the sand shooting nozzle comprises a nozzle and a sealing sleeve; the middle part of the nozzle is provided with a shooting hole, which is a through hole; the nozzle comprises a first mounting part and a second mounting part arranged in sequence from top to bottom; the outer diameter of the second mounting part is smaller than that of the first mounting part; the outer wall of the first mounting part is provided with external threads matched with the assembly holes; the second mounting part is arranged outside the assembly hole; and the sealing sleeve is tightly sleeved on the second mounting part of the nozzle.

[0010] Further, the sealing sleeve is longer than the second mounting part of the nozzle; the length difference between the sealing sleeve and the second mounting part is a, which ranges from 4mm to 5mm; the top end of the sealing sleeve is in contact with the bottom surface of the sand shooting plate; and the bottom end is used to be in contact with the end surface of the sand inlet of the core box.

[0011] Further, the bottom end of the sand blocking head is provided with a wrench hole, and the top end of the sand blocking head is a flat surface.

[0012] The sand shooting plate assembly has the following beneficial effects:

[0013] 1. The sand shooting plate is uniformly provided with a plurality of assembly holes; when changing production, appropriate positions and numbers of assembly holes can be selected according to different product structures and the positions of the sand inlets of different styles of core boxes, for installing the sand shooting nozzle; the remaining assembly holes are detachably provided with the ring-shaped sealing gasket and the sand blocking head, which plays a plugging role; the entire sand shooting plate does not need to be disassembled or the assembly holes on the sand shooting plate need not to be reprocessed or each core box needs not to be provided with a sand shooting plate, which is convenient, fast, time-saving and labor-saving, and effectively saves the manufacturing cost.

[0014] 2. The step design of the assembly hole of the sand shooting plate is convenient for installing the annular sealing gasket, facilitates sealing, and does not need to use a raw material belt for thread sealing each time when disassembling and assembling, thereby saving time and effort.

[0015] 3. The sand shooting plate is provided with a sand blocking plate above the sand shooting plate, and a certain interval is arranged between the sand shooting plate and the sand blocking plate, so that the coated sand or cold core sand in the sand bin is blocked from flowing to the sand shooting nozzle, and in the case of stopping pressurized sand shooting, the sand in the sand bin cannot flow to the sand shooting nozzle by itself to cause sand leakage of the sand shooting nozzle, and the sand leakage waste phenomenon is eliminated.

[0016] 4. The combination design of the sand shooting nozzle, that is, the combination of the nozzle and the sealing sleeve, is simple and convenient, facilitates the assembly and disassembly of the sand shooting nozzle, and simultaneously strengthens the sand shooting sealing of the sand shooting nozzle and the end face of the core box. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram (one) of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram (two) of the utility model;

[0020] Figure 4 It is a sectional view of the sand shooting plate;

[0021] Figure 5 It is Figure 4 It is a local enlarged schematic diagram of position A in the middle;

[0022] Figure 6 It is Figure 4 It is a local enlarged schematic diagram of position B in the middle;

[0023] Figure 7 It is a structural schematic diagram of the nozzle;

[0024] Figure 8 It is an installation schematic diagram of the utility model.

[0025] In the drawing: 1-sand shooting plate, 2-sand blocking plate, 3-fastening screw, 4-interval support, 5-sand shooting nozzle, 6-sealing sleeve, 7-nozzle, 8-assembly hole, 9-sand blocking head, 10-second mounting part, 11-first mounting part, 12-step, 13-annular sealing gasket, 14-sand bin, 15-C-shaped clamp. DETAILED DESCRIPTION

[0026] For example, Figures 1-6As shown, a sand shooting plate assembly of a sand shooting device for core making machine comprises a sand shooting plate 1, a ring-shaped sealing gasket 13, a sand blocking plate 2, a spacing support 4, a fastening screw 3, a sand shooting nozzle 5 and a sand blocking head 9. In installation, the sand shooting plate 1 is detachably fixed to the bottom of a sand bin 14 of the sand shooting device for core making machine through a C-shaped clamp 15 and a bolt. The sand shooting plate 1 is uniformly provided with a plurality of assembly holes 8. Preferably, the sand shooting plate 1 is provided with a plurality of rows of assembly holes 8 which are uniformly spaced and arranged in a rectangular shape. The ring-shaped sealing gasket 13 is detachably installed in the assembly hole 8. The sand shooting nozzle 5 is detachably installed in the assembly hole 8 for sand shooting. The sand blocking head 9 is detachably installed in the remaining assembly holes 8. The top of the sand shooting nozzle 5 and the top of the sand blocking head 9 are in contact with the bottom of the corresponding ring-shaped sealing gasket 13, thereby playing a sealing role. The inner wall of the assembly hole 8 is provided with an internal thread. The outer wall of the sand shooting nozzle 5 and the outer wall of the sand blocking head 9 are provided with external threads. The external threads are matched with the internal threads. The sand blocking plate 2 is arranged above the sand shooting plate 1. The spacing support 4 is arranged between the sand blocking plate 2 and the sand shooting plate 1. The sand blocking plate 2 and the sand shooting plate 1 are detachably fixedly connected through the fastening screw 3. The top of the spacing support 4 is attached to the bottom of the sand blocking plate 2. The bottom of the spacing support 4 is attached to the top of the sand shooting plate 1, thereby facilitating the spacing of the sand shooting plate 1 and the sand blocking plate 2 by a certain distance and facilitating assembly. A sand shooting channel is formed between the sand shooting plate 1 and the sand blocking plate 2. Coated sand or cold core sand flows from the sand shooting channel to the sand shooting nozzle 5.

[0027] The spacing support 4 is preferably a spacing support sleeve. The sand blocking plate 2 and the sand shooting plate 1 are provided with a plurality of fixed mounting holes. The fastening screw 3 is fastened in the fixed mounting hole of the sand shooting plate 1 through the fixed mounting hole of the sand blocking plate 2 and the spacing support 4. The fastening screw 3 is threadedly connected with the corresponding fixed mounting hole.

[0028] The assembly hole 8 on the sand shooting plate 1 is a stepped hole. The assembly hole 8 is provided with a step 12 at one end close to the sand blocking plate 2. The hole diameter of the one end of the assembly hole 8 close to the sand blocking plate 2 is smaller than the hole diameter of the other end thereof. The ring-shaped sealing gasket 13 is arranged at the step 12 of the assembly hole 8, thereby facilitating installation. The top end of the ring-shaped sealing gasket 13 is in contact with the step 12 of the assembly hole 8. When the ring-shaped sealing gasket 13 is matched with the sand blocking head 9, the bottom end of the ring-shaped sealing gasket 13 is in contact with the top end of the sand blocking head 9. When the ring-shaped sealing gasket 13 is matched with the sand shooting nozzle 5, the bottom end of the ring-shaped sealing gasket 13 is in contact with the top end of the sand shooting nozzle 5, thereby playing a sealing role. The middle part of the sand shooting nozzle 5 is in communication with the middle part of the ring-shaped sealing gasket 13, thereby playing a sand shooting role.

[0029] In order to stably arrange the ring-shaped sealing gasket 13 at the step, the outer wall of the ring-shaped sealing gasket 13 can also be provided with the external thread.

[0030] The sand injection nozzle 5 comprises a nozzle 7 and a sealing sleeve 6, the nozzle 7 is provided with a sand injection hole in the middle part, the sand injection hole is a through hole; the nozzle 7 comprises a first mounting part 11 and a second mounting part 10 arranged in sequence from top to bottom, the sand injection hole extends from the top end of the first mounting part 11 to the bottom end of the second mounting part 10, the outer diameter of the second mounting part 10 is smaller than that of the first mounting part 11, the first mounting part 11 is matched with the corresponding assembly hole 8, and the outer wall of the first mounting part 11 is provided with an external thread matched with the assembly hole 8; the second mounting part 10 is arranged outside the assembly hole 8, the sealing sleeve 6 is tightly sleeved on the second mounting part 10 of the nozzle 7, the inner wall of the sealing sleeve 6 is attached to the outer wall of the second mounting part 10, the top end of the sealing sleeve 6 is in contact with the bottom surface of the sand injection plate 1, and the bottom end of the sealing sleeve 6 is in close contact with the upper end surface of the core box, so as to seal.

[0031] The sealing sleeve 6 is longer than the second mounting part 10 of the nozzle, the length difference between the sealing sleeve 6 and the second mounting part 10 is a, the range of a is 4mm-5mm, the top end of the sealing sleeve 6 is in contact with the bottom surface of the sand injection plate 1, and the bottom end of the sealing sleeve 6 is lower than the bottom end of the second mounting part 10 by 4mm-5mm, so that the bottom end of the sealing sleeve 6 is in close contact with the upper end surface of the core box, and better sealing is achieved.

[0032] The bottom end of the sand blocking head 9 is provided with a wrench hole, that is, the end of the sand blocking head 9 close to the core box is provided with a wrench hole, so that the sand blocking head 9 is convenient to install and screw, the top end of the sand blocking head 9 is a plane, the top end of the sand blocking head 9 is in contact with one end of the annular sealing gasket 13, and the sand blocking head 9 is used for sealing.

[0033] The use method of the utility model is:

[0034] The first step is to replace the core box when changing production;

[0035] The second step is that after the core box replacement and installation are completed, the manual device of the core making machine is started, the sand injection device is moved to the sand injection position directly above the core box, the position of the assembly hole 8 on the sand injection plate 1 corresponding to the sand inlet position of the core box is checked, and a mark is made.

[0036] The third step is that the sand injection device is returned to the original position, the sand blocking heads 9 in the assembly holes 8 of the sand injection plate 1 at the marked positions are loosened in sequence, the sand injection nozzle 5 at the original position is removed, the sand injection nozzle 5 is installed in the assembly holes 8 at the marked positions in sequence, and then the removed sand blocking heads 9 are installed in the original assembly holes 8 of the removed sand injection nozzle 5 in sequence.

[0037] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the utility model and simplifying the description, and cannot be understood as a limitation on the utility model.

[0038] The above examples are illustrative of the present application and are not limiting. Any simple modifications of the present application are considered to be within the scope of the present application.

Claims

1. A sand-shooting plate assembly for a sand-shooting device for a core-making machine, characterized in that: It includes a sand shooting plate, an annular sealing gasket, a sand retaining plate, an interval support, a fastening screw, a sand shooting nozzle, and a sand blocking head; a number of assembly holes are evenly arranged on the sand shooting plate, an annular sealing gasket is detachably installed in the assembly hole, a sand shooting nozzle is detachably installed in the assembly hole to be sand shot, and a sand blocking head is detachably installed in the remaining assembly holes; the sand retaining plate is arranged above the sand shooting plate, the interval support is arranged between the sand retaining plate and the sand shooting plate, and the fastening screws are passed through the sand retaining plate and the interval support and fastened to the sand shooting plate.

2. The sand blasting plate assembly of the sand blasting device for a core making machine according to claim 1, characterized in that: The assembly hole on the sandblasting plate is arranged as a step hole, and the annular sealing gasket is arranged at the step of the assembly hole.

3. The sand blasting plate assembly of the sand blasting device for a core making machine according to claim 1, characterized in that: The sand-shooting nozzle includes a nozzle and a sealing sleeve. A spray hole is provided in the middle of the nozzle, and the spray hole is a through hole. The nozzle includes a first mounting part and a second mounting part arranged in sequence from top to bottom, and the outer diameter of the second mounting part is smaller than the outer diameter of the first mounting part. The second mounting part is arranged outside the assembly hole, and the sealing sleeve is tightly fitted on the second mounting part of the nozzle.

4. The sand blasting plate assembly of the sand blasting device for a core making machine according to claim 3, characterized in that: The sealing sleeve is longer than the second installation length, and the top end of the sealing sleeve contacts the bottom surface of the sand-shooting plate.

5. The sand blasting plate assembly of the sand blasting device for a core making machine according to claim 1, characterized in that: The bottom end of the sand plugging head is provided with a wrench hole, and the top end of the sand plugging head is a flat surface.

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