TWI741871B - Variable height sand box - Google Patents

Abstract

A variable-height sand box includes an outer box unit including an outer box body and at least one adjustment module, and an outer box unit movably arranged in the outer box unit along a height direction and includes a set of the outer box body An inner box body and at least one inner box unit corresponding to the fixed module of the adjustment module, a sand block unit disposed on one of the outer box body and the inner box body and opposite to the other, and a It includes at least one locking unit corresponding to the locking member of the fixed module. The adjustment module has an adjustment groove formed on the outer box and extending along the height direction, and at least a pair of adjustment blocks arranged on both sides of the adjustment groove, and each adjustment block has at least one adjustment hole. The fixing module has at least one fixing block penetrating the adjusting groove outward, and the fixing block has at least one fixing hole. The locking member is detachably inserted into the adjusting hole of the pair of adjusting blocks and the fixing hole of the fixing block to position the inner box unit on the outer box unit in the height direction.

Description

Variable height sand box

The present invention relates to a sand box, in particular to a sand box with a variable height.

As shown in FIG. 1, a conventional lower sand box 1 used for casting operations includes a hollow box body 101 and several fins 102 arranged at an upward end of the box body 101 at intervals. Generally speaking, during casting operations, a prepared wooden mold (not shown) is first placed in the box 101, and then the casting sand is removed from the box 101 where the fins 102 are provided. Fill and compact the bottom flask, then turn the lower flask 1 upside down, and take out the wooden mold to form a cavity for casting, and then fix a flask upper mold (not shown) to the flask. Then, pour molten iron into the cavity to form a rough casting blank (not shown in the figure). Finally, unpack the box and take out the rough casting blank.

However, since the height of the lower flask 1 is a fixed size, a lower flask 1 is often only suitable for casting a product of a specific specification. When the height of the product is different, the industry needs to order a new one. Lower the sand box 1, which will increase the manufacturing cost and prolong the production cycle of the product.

Therefore, the object of the present invention is to provide a sand box with variable height that can overcome at least one of the disadvantages of the prior art.

Therefore, the variable height sand box of the present invention includes an outer box unit, an inner box unit, a sand block unit, and a locking unit.

The outer box unit includes an outer box body defining a first accommodating space, and at least one adjustment module disposed on the outer box body, and the adjustment module has an adjustment module formed on the outer box body and along a height direction An extended adjusting groove, and at least a pair of adjusting blocks arranged on both sides of the adjusting groove, the adjusting groove penetrates the inner side and the outer side of the outer box body, and each adjusting block has at least one adjusting hole.

The inner box unit is movably arranged on the outer box unit along the height direction, and includes an inner box set into the first accommodating space of the outer box, and at least one set on the inner box and corresponding In the fixing module of the adjustment module, the inner box defines a second accommodating space communicating with the first accommodating space, the fixing module has at least one fixing block, and the fixing block penetrates outwardly The adjusting groove has at least one fixing hole.

The sand block unit is arranged on one of the outer box and the inner box, and opposite to the other of the outer box and the inner box, the sand block unit includes a number of first fins arranged at intervals , And count the second fins arranged at intervals and intersecting the first fins.

The locking unit includes at least one locking member corresponding to the fixed module, and the locking member is detachably inserted into the adjustment hole of the pair of adjustment blocks and the fixing hole of the fixing block, so as to set the inner part in the height direction. The box unit is positioned on the outer box unit.

The effect of the present invention is that the present invention uses the adjustment module of the outer box unit to cooperate with the design of the fixed module of the inner box unit and the locking unit to adjust the height of the inner box unit relative to the outer box unit. The invention is suitable for casting several products with different height specifications, and can greatly reduce the number of new sand boxes that the industry orders separately, so as to effectively reduce the manufacturing cost and shorten the production cycle of the product.

Refer to Figures 2 and 3, which are a first embodiment of the variable height flask 100 of the present invention. In the first embodiment, the flask 100 can be used as a lower flask during casting operations and can be used with A sand box upper mold (not shown) is matched, but it is not limited to this. The sand box 100 includes an outer box unit 10, an inner box unit 20, a sand block unit 30, and a locking unit 40.

As shown in FIGS. 3, 4, and 5, the outer box unit 10 includes an outer box body 11 defining a first accommodating space 13, and four adjustment modules 12.

In the first embodiment, the outer box 11 has two first end walls 111 arranged oppositely in a lateral direction X, and two oppositely arranged in a longitudinal direction Y and connected to the first end walls 111 , The first end walls 111 and the first side walls 112 cooperate to define the first accommodating space 13.

The adjustment modules 12 are arranged on the first end walls 111 opposite to each other, and are distributed on the front and back of the outer box 11.

It can be clarified that in other variations of the first embodiment, the adjustment modules 12 can also be arranged opposite to each other on the first side walls 112, and distributed on the outer box 11 On the left and right sides, or, the adjustment modules 12 can also be arranged on the first end walls 111 and the first side walls 112 one by one, and distributed on the front, rear, left, and right sides of the outer box 11 .

In addition, in other variations of the first embodiment, the number of the adjustment modules 12 can also be one, two, three, or more than four, where, when the number of the adjustment modules 12 is In the case of two, the adjustment modules 12 are arranged on the outer box 11 oppositely.

Each adjustment module 12 has an adjustment groove 121 formed on the outer box 11 and extending along a height direction Z, and three pairs of adjustment grooves 121 arranged on both sides of the adjustment groove 121 and arranged at intervals along the height direction Z Block 122.

The adjustment groove 121 of each adjustment module 12 penetrates the inner and outer sides of the outer box 11. In the first embodiment, the adjustment groove 121 of each adjustment module 12 penetrates a corresponding one of the first The inner and outer sides of one end wall 111.

Each adjustment block 122 has an adjustment hole 123.

The inner box unit 20 is movably arranged on the outer box unit 10 along the height direction Z, and includes an inner box body 21 set in the first accommodating space 13 of the outer box body 11, and four arranged in the outer box body 11 The inner box 21 corresponds to the fixed module 22 of the adjustment module 12 respectively.

The inner box 21 defines a second accommodating space 23 communicating with the first accommodating space 13. In the first embodiment, the inner box 21 has two second accommodating spaces disposed oppositely in the transverse direction X. Two end walls 211, and two second side walls 212 arranged oppositely in the longitudinal direction Y and connected to the second end walls 211, the second end walls 211 and the second side walls 212 cooperate to define the first Two accommodating space 23.

The fixing modules 22 are arranged on the second end walls 211 opposite to each other, and are distributed on the front and back of the inner box 21.

It can be clarified that the positions of the fixing modules 22 correspond to the adjustment modules 12. In other variations of the first embodiment, the fixing modules 22 can also be changed to be opposite to each other. Ground on the second side walls 212 and distributed on the left and right sides of the inner box 21, or the fixing modules 22 can also be arranged on the second end walls 211 and the second side walls one by one 212, and are distributed on the front, rear, left, and right sides of the inner box 21.

In addition, the number of the fixed modules 22 corresponds to the adjustment modules 12. In other variations of the first embodiment, the number of the fixed modules 22 can also be one, two, or three. Or more than four, wherein when the number of the fixed modules 22 is two, the fixed modules 22 are relatively disposed on the inner box 21 and correspond to the adjustment modules 12 respectively.

Each fixing module 22 has a fixing block 221 adjacent to the bottom end of the inner box 21, and the fixing block 221 of each fixing module 22 penetrates the adjustment groove 121 of the respective adjustment module 12 toward the outside, and There is a fixing hole 222.

The sand block unit 30 is disposed on one of the outer box body 11 and the inner box body 21, and opposite to the other of the outer box body 11 and the inner box body 21, the sand block unit 30 includes a plurality of spaces The first fins 31 are provided, and the second fins 32 are arranged at intervals and intersect with the first fins 31.

In the first embodiment, the sand block unit 30 is arranged at the top end of the inner box 21 opposite to the outer box 11, and the first ribs 31 extend along the transverse direction X and are arranged in the longitudinal direction Y The second ribs 32 extend along the longitudinal direction Y and are arranged at intervals in the lateral direction X.

The locking unit 40 includes four locking members 41 respectively corresponding to the fixing modules 22, and four locking nuts 42 respectively corresponding to the locking members 41, and each locking member 41 is detachably inserted in the place. The adjustment holes 123 of the corresponding pair of adjustment blocks 122 and the fixing holes 222 of the fixing block 221 of one of the corresponding fixing modules 22 are used to position the inner box unit 20 on the outer box unit in the height direction Z 10.

In the first embodiment, each locking member 41 is a bolt, and each locking member 41 passes through the adjustment hole 123 of the corresponding pair of adjustment blocks 122 and the corresponding fixing block 221 of one of the fixing modules 22 The fixing hole 222 is locked with the respective locking nut 42.

In addition, the number of the locking members 41 and the number of the locking nuts 42 correspond to the fixing modules 22. In other variations of the first embodiment, the locking members 41 and the locks The number of the fixed nut 42 can also be one, two, three or more than four.

Thereby, as shown in FIGS. 6, 7, and 8, the industry can adjust the height of the inner box 21 of the inner box unit 20 relative to the outer box 11 of the outer box unit 10 according to actual needs, and then use the locking unit The locking member 41 of 40 and the locking nut 42 fix the inner box unit 20 on the outer box unit 10. In the first embodiment of the present embodiment, the inner box unit 20 can be made relative to the outer box unit 10. Three-stage height adjustments are used for casting operations for products of different heights and sizes. It is understandable that in other variations of the first embodiment, the inner box unit 20 may also be relative to the outer box unit 10. Do two height adjustments or more than three height adjustments.

It is worth mentioning that in other variations of the first embodiment, the number of pairs of adjustment blocks 122 of each adjustment module 12 can also be one pair, two pairs, or more than three pairs. When the number of pairs of the adjustment blocks 122 of the module 12 is a pair, the pair of adjustment blocks 122 can be arranged at a position adjacent to the top of the outer box 11, and each adjustment block 122 has an adjustment hole 123, and at the same time, each The fixing module 22 may have three fixing blocks 221 arranged at intervals in the height direction Z, and each fixing block 221 has a fixing hole 222, or each fixing module 22 has a fixing block extending along the height direction Z. Block 221, the fixing block 221 has three fixing holes 222 arranged at intervals in the height direction Z to lock and align with the corresponding adjustment holes 123 of the adjustment block 122 of the first adjustment module 12 when the height is adjusted .

Based on the above description, the advantages of the present invention can be summarized as follows:

1. The sand box 100 of the present invention utilizes the adjustment module 12 of the outer box unit 10 to match the design of the fixed module 22 of the inner box unit 20 and the design of the locking unit 40, which can be adjusted in three heights. Based on the prior art, the sand box 100 of the present invention can be applied to casting products of three different height specifications, which can greatly reduce the number of new sand boxes ordered by the industry, so as to effectively reduce the manufacturing cost and shorten the production cycle of the product.

2. The adjustment block 122 of the adjustment module 12 of the outer box unit 10 of the present invention is arranged on the outer side of the outer box body 11, and at the same time, the fixing block 221 of the fixing module 22 of the inner box unit 20 is also arranged there. The outer side surface of the inner box 21, therefore, when the first accommodating space 13 of the outer box 11 and the second accommodating space 23 of the inner box 21 are filled with casting sand (for example, acidic furan casting sand) , The adjustment blocks 122 of the adjustment modules 12, the fixing blocks 221 of the fixing modules 22, and the locking member 41 and the locking nut 42 of the locking unit 40 will not touch the casting sand, which can effectively avoid Corroded by casting sand.

9 and 10 are a second embodiment of the present invention. The second embodiment is similar to the first embodiment. The difference between the second embodiment and the first embodiment is:

The adjustment grooves 121 of the adjustment modules 12 extend along the height direction Z to the top end of the outer box body 11 facing the inner box body 21. In the second embodiment, the adjustment grooves of the adjustment modules 12 121 extends along the height direction Z to the top of the first end walls 111 to form a breach.

As shown in FIGS. 11 and 12, in other variations of the second embodiment, the outer box unit 10 further includes four reinforcing blocks 14. Each reinforcing block 14 is welded and fixed to one of the corresponding first end walls 111 after the inner box body 21 is inserted into the outer box body 11 and is adjacent to the top end of one of the first end walls 111 Each reinforcing block 14 blocks the top opening of the adjustment groove 121 of the respective adjustment module 12, so that in addition to facilitating the assembly of the inner box 21 and the outer box 11, The reinforcing blocks 14 can also be used to reinforce the structural strength of the outer box 11 to produce a structural strength similar to the outer box 11 of the first embodiment.

In this way, the second embodiment can also achieve the same purpose and effect as the above-mentioned first embodiment.

Refer to Figures 13 and 14, which are a third embodiment of the present invention. The third embodiment is similar to the second embodiment. The difference between the third embodiment and the second embodiment is:

The outer box body 11 of the outer box list 10 has a surrounding lower reinforcement ring wall 113 fixed on the bottom end of the first end walls 111 and the bottom end of the first side walls 112, and also has a surrounding And the upper reinforcing ring wall 114 fixed on the top end of the first end walls 111 and the top end of the first side walls 112 is fixed on the outer side of the first end walls 111 and the first side walls at several intervals. The outer side of the side wall 112 is fixed to the reinforcing rib 115 between the lower reinforcing ring wall 113 and the upper reinforcing ring wall 114. The lower reinforcing ring wall 113, the upper reinforcing ring wall 114 and the reinforcing ribs 115 can increase the The overall structural strength of the outer box 11.

Each adjustment module 12 has a pair of adjustment blocks 122, and each adjustment block 122 extends along the height direction Z and has three adjustment holes 123 spaced apart in the height direction Z to provide for adjusting the height. The corresponding fixing hole 222 of the fixing block 221 of the first fixing module 22 is locked and aligned.

In this way, the third embodiment can also achieve the same purpose and effect as the above-mentioned second embodiment.

In summary, the variable height flask of the present invention is not only suitable for casting products of three different height specifications, but also effectively reduces manufacturing costs and shortens the production cycle of products, so it can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

100: sand box 10: Outer box unit 11: Outer box 111: first end wall 112: first side wall 113: Lower reinforcement ring wall 114: Upper reinforcement ring wall 115: Reinforcement Rib 12: Adjust the module 121: Adjust the groove 122: adjustment block 123: adjustment hole 13: The first housing space 14: Reinforcing block 20: inner box unit 21: inner box 211: second end wall 212: second side wall 22: Fixed module 221: fixed block 222: fixed hole 23: Second housing space 30: Sand block unit 31: The first rib 32: second rib 40: Locking unit 41: lock firmware 42: lock nut X: horizontal direction Y: vertical direction Z: height direction 1: Lower sand box 101: cabinet 102: rib

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view of a conventional lower sand box; Figure 2 is a combined perspective view of a first embodiment of the variable height flask of the present invention; Figure 3 is an exploded perspective view of the first embodiment; Figure 4 is a cross-sectional view taken along the line IV-IV in Figure 2; Figure 5 is a cross-sectional view taken along the line Ⅴ-Ⅴ in Figure 4; 6 is a front view illustrating that an inner box unit of the first embodiment is adjusted to a first height relative to an outer box unit; Fig. 7 is a view similar to Fig. 6 illustrating that the inner box unit is adjusted to a second height relative to the outer box unit; Fig. 8 is a view similar to Fig. 7 illustrating that the inner box unit is adjusted to a third height relative to the outer box unit; Figure 9 is an exploded perspective view of a second embodiment of the variable height flask of the present invention; Figure 10 is a front view of the second embodiment; Fig. 11 is a view similar to Fig. 9 illustrating a modification of the second embodiment; FIG. 12 is a view similar to FIG. 10, illustrating a modification of the second embodiment; Figure 13 is a combined perspective view of a third embodiment of the variable height flask of the present invention; and Fig. 14 is a front view of the third embodiment.

100: sand box

10: Outer box unit

11: Outer box

111: first end wall

112: first side wall

12: Adjust the module

121: Adjust the groove

122: adjustment block

123: adjustment hole

13: The first housing space

20: inner box unit

21: inner box

211: second end wall

212: second side wall

22: Fixed module

221: fixed block

222: fixed hole

23: Second housing space

30: Sand block unit

31: The first rib

32: second rib

40: Locking unit

41: lock firmware

42: lock nut

X: horizontal direction

Y: vertical direction

Z: height direction

Claims (7)

A sand box with variable height, including: An outer box unit includes an outer box body defining a first accommodating space, and at least one adjustment module disposed on the outer box body. The adjustment module has a height formed on the outer box body. An adjustment groove extending in a direction, and at least one pair of adjustment blocks arranged on both sides of the adjustment groove, the adjustment groove penetrates the inner and outer sides of the outer box body, and each adjustment block has at least one adjustment hole; An inner box unit is movably arranged on the outer box unit along the height direction, and includes an inner box body set in the first accommodating space of the outer box body, and at least one set in the inner box body Corresponding to the fixing module of the adjustment module, the inner box defines a second accommodating space communicating with the first accommodating space, the fixing module has at least one fixing block, and the fixing block penetrates outwards The adjusting groove has at least one fixing hole; A sand block unit is arranged on one of the outer box and the inner box, and opposite to the other of the outer box and the inner box, the sand block unit includes a number of first ribs arranged at intervals Fins, and a number of second fins arranged at intervals and intersecting the first fins; and A locking unit includes at least one locking member corresponding to the fixed module, and the locking member is detachably inserted into the adjustment hole of the pair of adjustment blocks and the fixing hole of the fixing block, so that the The inner box unit is positioned on the outer box unit. The variable height sand box according to claim 1, wherein the adjustment module has a number of pairs of adjustment blocks arranged at intervals along the height direction, each adjustment block has an adjustment hole, and the fixed module has a fixed block The fixing block is adjacent to the bottom end of the inner box and has a fixing hole. The variable height sand box according to claim 2, wherein the locking unit further includes at least one locking nut corresponding to the locking member, the locking member is a bolt, and the locking member passes through the corresponding one A pair of adjusting holes of an adjusting block and a fixing hole of the fixing block are locked with the locking nut. The variable-height sand box according to claim 2, wherein the outer box unit includes two adjustment modules disposed oppositely to the outer box body, and the inner box unit includes two oppositely disposed on the inner box body and The fixing modules respectively corresponding to the adjustment modules, the fixing block of each fixing module penetrates the adjustment grooves of the respective adjustment modules outwards, and the locking unit includes two fixing modules respectively corresponding to the fixing modules And two lock nuts corresponding to the locks, each lock is a bolt, and each lock passes through the adjustment hole of the corresponding pair of adjustment blocks and the corresponding one of the fixing The fixing holes of the fixed block of the module are locked with the respective locking nuts. The variable height sand box according to claim 2, wherein the outer box unit includes four adjustment modules, the outer box body has two first end walls arranged opposite to each other in a transverse direction, and two in a longitudinal direction. First side walls arranged opposite to each other in the direction and connected with the first end walls, the first end walls and the first side walls cooperate to define the first accommodating space, and the adjustment modules are arranged opposite to each other On the first end walls, the adjustment groove of each adjustment module penetrates the inner and outer sides of the corresponding one of the first end walls, and the inner box unit includes four fixings corresponding to the adjustment modules. Module, the inner box body has two second end walls arranged opposite to each other in the transverse direction, and two second side walls arranged opposite to each other in the longitudinal direction and connected with the second end walls, the second ends The wall cooperates with the second side walls to define the second accommodating space. The fixing modules are arranged on the second end walls opposite to each other. The adjustment groove of the adjustment module, the locking unit includes four locking members corresponding to the fixing modules, and four locking nuts corresponding to the locking members, each locking member is a bolt, each The locking pieces pass through the adjustment holes of the corresponding pair of adjustment blocks and the fixing holes of the corresponding one of the fixing modules, and are locked with respective locking nuts. The variable height sand box according to claim 1, wherein the adjusting groove extends along the height direction to the top end of the outer box body facing the inner box body. The variable height sand box according to claim 1, wherein the sand blocking unit is arranged at the top end of the inner box opposite to the outer box, and the first ribs extend in a transverse direction and are arranged in a The second ribs are arranged at intervals in the longitudinal direction, and the second fins extend along the longitudinal direction and are arranged at intervals in the transverse direction.

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