Core box

Abstract

The utility model relates to the technical field of casting molds, in particular to a core box which comprises an upper mold, a lower mold and a sliding demolding assembly. A profiled groove is formed in the lower die; a sliding demolding assembly; the two sliding demolding assemblies are located on the two sides of the profiled groove. The sliding demolding assembly comprises a sliding block, a wedge block and an elastic piece. The sliding block is slidably arranged on the lower die, and the elastic piece is connected with the sliding block. The wedge block is arranged on the upper die, and the sliding block is provided with a wedge surface corresponding to the wedge block; the elastic piece is used for enabling the sliding block to move in the direction away from the groove. When the upper die is installed on the lower die, the wedge block abuts against the wedge face, the sliding block overcomes the elastic force of the elastic piece to move in the direction close to the profiled groove, and a die cavity is defined by the sliding block, the core print of the upper die and the profiled groove. During mold closing, the sliding block is pushed by the wedge block to move in the direction close to the profile groove and is used for forming a mold cavity; during mold opening, the sliding block moves in the direction away from the groove under the action of the elastic piece, demolding of the sliding block part is achieved, an operator does not need to manually push the sliding block for demolding, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to foundry mould technical field, concretely relates to a core box. BACKGROUND

[0002] The mouth surface of the inner cavity of the buffer mostly has small I-shaped groove for installing wear-resistant copper strip; the buffer generally adopts casting, when preparing the sand core of the buffer, the I-shaped groove cannot normally open the mould, generally adopts the sliding block. The core box is in the temperature of 220 DEG C to 300 DEG C when using, and the operation personnel is very inconvenient to slide the sliding block and operate in such temperature. CONTENT OF UTILITY MODEL

[0003] (1) the problem to be solved by the utility model is that the sliding block in the core box of the existing buffer is generally manually slid when demoulding, and it is not conducive to the operation of the operation personnel because the temperature of the core box is high when using.

[0004] (2) technical scheme

[0005] In order to solve the above technical problem, the utility model embodiment provides a core box, which comprises an upper mould and a lower mould, and a type groove is arranged on the lower mould;

[0006] The core box further comprises a sliding demoulding assembly;

[0007] The sliding demoulding assembly is provided with two groups, and the two groups of sliding demoulding assemblies are oppositely arranged and located on the two sides of the type groove; The sliding demoulding assembly comprises a sliding block, a wedge block and an elastic piece;

[0008] The sliding block is slidably arranged on the lower mould, and the elastic piece is connected with the sliding block; The wedge block is arranged on the upper mould, and the sliding block is provided with a wedge surface corresponding to the wedge block;

[0009] The elastic piece is used to make the sliding block move away from the type groove; When the upper mould is installed on the lower mould, the wedge block abuts against the wedge surface, and the sliding block moves towards the type groove against the elastic force of the elastic piece, and the type groove, the core head of the upper mould and the type groove jointly form a mould cavity.

[0010] Further, a sliding groove corresponding to the sliding block is arranged on the lower mould, and one end of the sliding groove is communicated with the type groove; The sliding block is slidably arranged in the corresponding sliding groove.

[0011] Further, the lower mould is further provided with an installation groove corresponding to the sliding groove; The installation groove is located on the side of the sliding groove away from the type groove, the installation groove and the corresponding sliding groove are spaced apart and are communicated through a through hole; The elastic piece is arranged in the installation groove and is connected with the sliding block through the through hole.

[0012] Further, the elastic member is a spring.

[0013] Further, the sliding demolding assembly further comprises a connecting rod, one end of the connecting rod is connected with the sliding block, the other end of the connecting rod penetrates through the through hole and extends into the mounting groove, a limiting boss is arranged on the end of the connecting rod away from the sliding block, the spring sleeve is arranged on the connecting rod, and one end of the spring sleeve abuts against the limiting boss and the other end of the spring sleeve abuts against the outer edge of the end of the through hole towards the mounting groove.

[0014] Further, the sliding demolding assembly further comprises a pressing plate, the pressing plate is detachably connected with the lower die, the mounting groove and the sliding groove are separated by the pressing plate, a first semicircular groove is arranged on the pressing plate, a second semicircular groove corresponding to the first semicircular groove is arranged on the lower die, when the pressing plate is mounted on the lower die, the first semicircular groove and the second semicircular groove form the through hole.

[0015] Further, a first notch is arranged on the side of the sliding block connected with the connecting rod, and the wedge surface is located in the first notch.

[0016] Further, the wedge block is provided with a second notch for avoiding the connecting rod.

[0017] Further, the connecting rod and the wedge block are detachably connected.

[0018] Further, the wedge block is integrally formed with the upper die.

[0019] The utility model discloses beneficial effects:

[0020] The utility model provides a core box, including upper die and lower die, be equipped with the type groove on the lower die, the core box still includes: sliding demolding assembly, sliding demolding assembly sets two groups, and two groups sliding demolding assembly relative arrangement and be located the both sides of type groove, sliding demolding assembly includes sliding block, wedge block and elastic member, the sliding block is arranged on the lower die, and the elastic member is connected with the sliding block, wedge block is arranged on the upper die, and the sliding block is equipped with the wedge surface corresponding with wedge block, and the elastic member is used for making the sliding block move to the direction away from type groove, when the upper die is installed on the lower die, wedge block abuts with wedge surface, and makes the sliding block overcome the elastic force of elastic member and move to the direction close to type groove, and with the core head of upper die and type groove jointly enclose the mould cavity.

[0021] When the mould is closed, the sliding block moves to the direction close to the type groove under the pushing of the wedge block and is used for forming the mould cavity, when the mould is opened, the sliding block moves to the direction away from the type groove under the action of the elastic member and realizes the demolding of the sliding block part, compared with prior art, the operator does not need to manually push the sliding block to demold, and the operator is convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0023] Figure 1 The structure schematic diagram of the lower mold provided by the embodiment of the present application is shown in the figure.

[0024] Figure 2 The structure schematic diagram of the lower mold provided by the embodiment of the present application is shown in the figure.

[0025] Figure 3 The structure schematic diagram of the upper mold provided by the embodiment of the present application is shown in the figure.

[0026] Figure 4 The sectional view of the upper mold and the lower mold when the upper mold and the lower mold are combined is shown in the figure.

[0027] Figure 5 The structure schematic diagram of the slider and the connecting rod cooperation provided by the embodiment of the present application is shown in the figure.

[0028] Figure: 11-upper mold; 12-lower mold; 121-groove; 122-sliding slot; 123-mounting groove;

[0029] 31-slider; 311-wedge surface; 312-first notch; 32-wedge block; 33-elastic member; 331-second notch; 34-connecting rod; 341-limiting boss; 35-pressing plate. EMBODIMENT

[0030] The technical solutions of the present application will be described clearly and completely in combination with the embodiments. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0031] As Figures 1 to 5As shown, the utility model discloses an embodiment provides a kind of core box, including upper die 11 and lower die 12, the lower die 12 is equipped with profile groove 121;The core box further includes: sliding demolding assembly;Two groups of sliding demolding assembly are arranged, and two groups of sliding demolding assembly are oppositely arranged, and are located the two sides of profile groove 121;Sliding demolding assembly includes slider 31, wedge 32 and elastic element 33;The slider 31 is slidably arranged on the lower die 12, and the elastic element 33 is connected with the slider 31;The wedge 32 is arranged on the upper die 11, and the slider 31 is equipped with the wedge surface 311 corresponding with the wedge 32;The elastic element 33 is used to make the slider 31 move in the direction away from the profile groove 121;When the upper die 11 is installed on the lower die 12, the wedge 32 is abutted with the wedge surface 311, and makes the slider 31 overcome the elastic force of the elastic element 33 and move in the direction close to the profile groove 121, and is surrounded with the core head of the upper die 11 and the profile groove 121 to form mold cavity.

[0032] The embodiment provides a kind of core box, for casting bumper. Core box includes upper die 11, lower die 12 and sliding demolding assembly. Upper die 11 is detachably connected with lower die 12, and upper die 11 is equipped with core head, and lower die 12 is equipped with profile groove 121 corresponding with core head. Sliding demolding assembly includes slider 31, wedge 32 and elastic element 33;Slider 31 is used to correspond the small I-shaped groove portion of inner cavity mouth face in bumper, and the slider 31 of two groups of sliding demolding assembly is oppositely arranged, and is slidably arranged on the lower die 12, and is located the two sides of profile groove 121;When upper die 11 is connected with lower die 12, core head, profile groove 121 and two sliders 31 are surrounded to form mold cavity for casting bumper. Slider 31 is slidably arranged on the lower die 12, and the sliding of slider 31 can be controlled by wedge 32 and elastic element 33;Specifically, elastic element 33 is used to make slider 31 slide in the direction away from profile groove 121;Slider 31 is equipped with wedge surface 311, and when upper die 11 is assembled to lower die 12, wedge 32 on upper die 11 is abutted with wedge surface 311 on slider 31, and makes slider 31 overcome the tension of elastic element 33 to slider 31 and move in the direction close to profile groove 121.

[0033] In use, upper die 11 is assembled to lower die 12, under the action of wedge 32, slider 31 moves in the direction close to profile groove 121 against the elastic force of elastic element 33, when upper die 11 is completely connected with lower die 12, profile groove 121, core head and two sliders 31 are surrounded to form mold cavity;And when separating upper die 11 from lower die 12 after casting, slider 31 moves in the direction away from profile groove 121 under the action of elastic element 33 to realize the demolding of slider 31 part.

[0034] The core box provided by the embodiment is used for forming a mold cavity when the mold is closed, and the sliding block 31 is pushed by the wedge 32 to move towards the direction of the mold groove 121; when the mold is opened, the sliding block 31 is pushed by the elastic member 33 to move away from the mold groove 121, and the sliding block 31 is partially demolded, compared with the prior art, the operator does not need to manually push the sliding block 31 to demold, and the operator is convenient to operate.

[0035] The core box provided by the embodiment is used for forming a mold cavity when the mold is closed, and the sliding block 31 is pushed by the wedge 32 to move towards the direction of the mold groove 121; when the mold is opened, the sliding block 31 is pushed by the elastic member 33 to move away from the mold groove 121, and the sliding block 31 is partially demolded, compared with the prior art, the operator does not need to manually push the sliding block 31 to demold, and the operator is convenient to operate. Figures 1 to 5 As shown in the figure, the lower mold 12 is provided with a sliding groove 122 corresponding to the sliding block 31, and one end of the sliding groove 122 is communicated with the mold groove 121; the sliding block 31 is slidingly arranged in the corresponding sliding groove 122.

[0036] In the embodiment, the upper mold 11 is provided with a sliding groove 122 for mounting the sliding block 31, and the sliding block 31 is mounted in the sliding groove 122, so that the stability of the sliding block 31 during sliding can be ensured. Since the sliding demolding assembly is provided with two groups, correspondingly, the sliding groove 122 is also provided with two groups, and the two sliding grooves 122 are located on the two sides of the mold groove 121, and one end of the sliding groove 122 is communicated with the mold groove 121, so that the sliding block 31 can slide to the mold groove 121, and the mold cavity can be formed together with the mold groove 121.

[0037] In the embodiment, the top end of the sliding groove 122 is open, and one side of the sliding groove 122 is open, so that the sliding groove 122 can be communicated with the mold groove 121, the shape of the sliding groove 122 is completely same as the shape of the sliding block 31, and the raw material can be prevented from entering the sliding groove 122 during casting; during use, the top end of the sliding groove 122 is closed by the upper mold 11.

[0038] The core box provided by the embodiment is used for forming a mold cavity when the mold is closed, and the sliding block 31 is pushed by the wedge 32 to move towards the direction of the mold groove 121; when the mold is opened, the sliding block 31 is pushed by the elastic member 33 to move away from the mold groove 121, and the sliding block 31 is partially demolded, compared with the prior art, the operator does not need to manually push the sliding block 31 to demold, and the operator is convenient to operate. Figures 1 to 5 As shown in the figure, the lower mold 12 is provided with a sliding groove 122 corresponding to the sliding block 31, and one end of the sliding groove 122 is communicated with the mold groove 121; the sliding block 31 is slidingly arranged in the corresponding sliding groove 122.

[0039] The core box provided by the embodiment is used for forming a mold cavity when the mold is closed, and the sliding block 31 is pushed by the wedge 32 to move towards the direction of the mold groove 121; when the mold is opened, the sliding block 31 is pushed by the elastic member 33 to move away from the mold groove 121, and the sliding block 31 is partially demolded, compared with the prior art, the operator does not need to manually push the sliding block 31 to demold, and the operator is convenient to operate.

[0040] Meanwhile, in the embodiment, the interval between the sliding groove 122 and the mounting groove 123 can also limit the sliding block 31; specifically, under the action of the elastic member 33, the sliding block 31 can only slide to the interval between the sliding groove 122 and the mounting groove 123 in the first direction and cannot continue to slide, thereby avoiding that the wedge block 32 cannot contact the wedge surface 311 on the sliding block 31 when the upper die 11 and the lower die 12 are closed, and causing the sliding block 31 to be unable to slide in the second direction.

[0041] The core box provided by the embodiment of the utility model, as shown in Figures 1 to 5 The elastic member 33 is a spring, which is simple in structure and high in reliability.

[0042] It can be understood that in the embodiment, the elastic member 33 can also be rubber or silicone having elasticity and certain high-temperature resistance, which can also achieve the purpose of making the sliding block 31 have the tendency to move in the first direction in the embodiment.

[0043] The core box provided by the embodiment of the utility model, as shown in Figures 1 to 5 The sliding demolding assembly further comprises a connecting rod 34; one end of the connecting rod 34 is connected with the sliding block 31, and the other end of the connecting rod 34 penetrates through the through hole and extends into the mounting groove 123; the end of the connecting rod 34 away from the sliding block 31 is provided with a limiting boss 341; the spring sleeve is arranged on the connecting rod 34, and one end of the spring sleeve abuts against the limiting boss 341, and the other end of the spring sleeve abuts against the outer edge of the end of the through hole facing the mounting groove 123.

[0044] In the embodiment, the sliding demolding assembly further comprises a connecting rod 34, and the connecting rod 34 is used for mounting the spring. Specifically, one end of the connecting rod 34 is connected with the sliding block 31, and the other end of the connecting rod 34 penetrates through the through hole and extends into the mounting groove 123, and the end of the connecting rod 34 away from the sliding block 31 is provided with a limiting boss 341; during assembly, the spring sleeve is arranged on the connecting rod 34, and one end of the spring sleeve abuts against the limiting boss 341, and the other end of the spring sleeve abuts against the outer edge of the end of the through hole facing the mounting groove 123. The spring is a compression spring, and under the action of the spring, the sliding block 31 always has the tendency to slide in the first direction.

[0045] It can be understood that in the embodiment, the spring can also be a tensile spring, and the two ends of the tensile spring are fixedly connected with the sliding block 31 and the inner wall of the mounting groove 123 respectively, which can also achieve the purpose of making the sliding block 31 have the tendency to move in the first direction in the embodiment.

[0046] The core box provided by the embodiment of the utility model, as shown in Figures 1 to 5As shown, the sliding demolding assembly further comprises a pressing plate 35; the pressing plate 35 is detachably connected to the lower mold 12, the mounting groove 123 and the sliding groove 122 are separated by the pressing plate 35; the pressing plate 35 is provided with a first semicircular groove, and the lower mold 12 is provided with a second semicircular groove corresponding to the first semicircular groove, when the pressing plate 35 is installed on the lower mold 12, the first semicircular groove and the second semicircular groove form the through hole.

[0047] In the embodiment, the mounting groove 123 and the sliding groove 122 are separated by the ridge of the lower mold 12 and the pressing plate 35; the pressing plate 35 can be inserted between the mounting groove 123 and the sliding groove 122 and connected with the ridge; the pressing plate 35 is provided with a first semicircular groove, and the ridge is provided with a second semicircular groove, when the pressing plate 35 is assembled, the first semicircular groove and the second semicircular groove jointly form the through hole. By arranging the pressing plate 35, the assembly of the connecting rod 34 and the sliding block 31 is facilitated, and the replacement of parts such as springs is facilitated.

[0048] The core box provided by the embodiment of the utility model, preferably, the connecting rod 34 is detachably connected with the sliding block 32. Figures 1 to 5 As shown, one side of the sliding block 31 connected with the connecting rod 34 is provided with a first notch 312, and the wedge surface 311 is located in the first notch 312.

[0049] In the embodiment, one side of the sliding block 31 connected with the connecting rod 34 is provided with a first notch 312, and the wedge surface 311 is located in the first notch 312, when the mold is closed, the wedge block 32 on the upper mold 11 is inserted into the first notch 312, thereby reducing the occupied space of the sliding demolding assembly.

[0050] The core box provided by the embodiment of the utility model, preferably, the connecting rod 34 is detachably connected with the sliding block 32. Figures 1 to 5 As shown, the wedge block 32 is provided with a second notch 331, and the second notch 331 is used for avoiding the connecting rod 34.

[0051] Preferably, in the embodiment, one end of the connecting rod 34 is directly connected to the wedge surface 311 of the sliding block 31, and in order to avoid the connecting rod 34 when the mold is closed, the wedge block 32 is provided with a second notch 331.

[0052] The core box provided by the embodiment of the utility model, preferably, the connecting rod 34 is detachably connected with the sliding block 32.

[0053] The core box provided by the embodiment of the utility model, preferably, the wedge block 32 is integrally formed with the upper mold 11.

[0054] In the description of the utility model, it is necessary to explain, the direction or position relation that the term "upper", "lower" and the like indicate is based on the direction or position relation shown in the drawing, is only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply that the device or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as the limitation of the utility model. In addition, the term "first", "second" is only for the purpose of description, and can not be understood as indicating or implying relative importance.

[0055] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "communication", "connection" should be broad understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be direct communication, also can be indirectly communicated through the intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more than two.

[0056] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A core box, comprising an upper mold (11) and a lower mold (12), wherein the lower mold (12) is provided with a mold groove (121); characterized in that The core box further comprises a sliding demolding assembly; The sliding demolding assembly is provided in two groups, and the two groups of the sliding demolding assembly are oppositely arranged and located on both sides of the mold groove (121); the sliding demolding assembly comprises a sliding block (31), a wedge block (32) and an elastic member (33); The sliding block (31) is slidably arranged on the lower mold (12), and the elastic member (33) is connected with the sliding block (31); the wedge block (32) is arranged on the upper mold (11), and the sliding block (31) is provided with a wedge surface (311) corresponding to the wedge block (32); The elastic member (33) is used for moving the sliding block (31) away from the mold groove (121); when the upper mold (11) is mounted on the lower mold (12), the wedge block (32) abuts against the wedge surface (311), and the sliding block (31) moves towards the mold groove (121) against the elastic force of the elastic member (33), and cooperates with the core head of the upper mold (11) and the mold groove (121) to form a mold cavity.

2. The core box of claim 1, wherein, The lower mold (12) is provided with a sliding groove (122) corresponding to the sliding block (31), one end of the sliding groove (122) communicates with the mold groove (121); and the sliding block (31) is slidably arranged in the corresponding sliding groove (122).

3. The core box of claim 2, wherein, The lower mold (12) is further provided with a mounting groove (123) corresponding to the sliding groove (122); the mounting groove (123) is located on the side of the sliding groove (122) away from the mold groove (121), the mounting groove (123) is spaced apart from the corresponding sliding groove (122) and communicates through a through hole; and the elastic member (33) is arranged in the mounting groove (123) and connected with the sliding block (31) through the through hole.

4. The core box of claim 3, wherein, The elastic member (33) is a spring.

5. The core box of claim 4, wherein, The sliding demolding assembly further comprises a connecting rod (34); one end of the connecting rod (34) is connected with the sliding block (31), and the other end of the connecting rod (34) extends into the mounting groove (123) through the through hole; a limiting boss (341) is arranged on the end of the connecting rod (34) away from the sliding block (31); a spring sleeve is arranged on the connecting rod (34), and one end of the spring sleeve abuts against the limiting boss (341), and the other end of the spring sleeve abuts against the outer edge of the end of the through hole facing the mounting groove (123).

6. The core box of claim 3, wherein, The sliding demolding assembly further comprises a pressing plate (35); the pressing plate (35) is detachably connected to the lower mold (12), and the mounting groove (123) and the sliding groove (122) are separated by the pressing plate (35); a first semicircular groove is arranged on the pressing plate (35), and a second semicircular groove corresponding to the first semicircular groove is arranged on the lower mold (12); when the pressing plate (35) is mounted on the lower mold (12), the first semicircular groove and the second semicircular groove form the through hole.

7. The core box of claim 5, wherein, The sliding block (31) is provided with a first notch (312) on the side connected with the connecting rod (34), and the wedge surface (311) is located in the first notch (312).

8. The core box of claim 5, wherein, The wedge block (32) is provided with a second notch (331) for avoiding the connecting rod (34).

9. The core box of claim 5, wherein, The connecting rod (34) is detachably connected with the wedge block (32).

10. The core box of claim 1, wherein, The wedge block (32) is integrally formed with the upper die (11).

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