Tool mold for roller casting and ejection device

Abstract

The utility model discloses a tool mould and an ejection device for roller casting, which comprises a roller mould, two ends of the roller mould are concave inwards to form accommodating parts, end covers are arranged on the accommodating parts, inner side holes of the end covers are provided with end cover sand moulds, the side surface of the roller mould is provided with a plurality of pin holes for mounting fastening pins, and the front ends of the fastening pins are positioned at the tops of the end covers. A riser box and a bottom box are arranged on the outer sides of the two ends of the roller die respectively, a plurality of lifting parts are arranged on the outer side of the riser box, an upper inner hole is formed in the riser box, a middle inner hole is formed in the roller die, a lower inner hole is formed in the bottom box, and an upper cavity used for containing an upper roller neck of a blank roller is formed in the upper inner hole through an upper lining sand part on the inner side of the upper inner hole. A lower cavity used for containing a lower roller neck of a blank roller is formed in the lower inner hole through a lower sand lining part on the inner side of the lower inner hole, the hoisting part facilitates hoisting and carrying of the tool mold, the blank roller is ejected out of the tool mold through cooperation of a hoisting device and a box opening ejector, and the working efficiency of roller box opening is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of roller casting, in particular to a tooling die and an ejection device for roller casting. Background Art

[0002] Rollers are tools that cause plastic deformation of metal (rolled material) and are important consumable parts that determine the efficiency of the rolling mill and the quality of the rolled material. Rollers are often cast in molds. Roll unpacking is the process of removing the roll blank from the tooling mold for centrifugal casting of the roll after cooling the cast roll to the temperature required by the process. In the prior art, such as CN204975215U, a casting mold for preventing roller cracking is disclosed, which includes a gate, a riser, a cold mold and a bottom box, and a quartz sand layer is provided on the inner wall of the cavity therein for roller casting. However, in the actual production process, different rollers need to be made into different precise shapes using molding sand. As a result, during the unpacking process of some tooling molds, it is difficult to directly remove the rough roller from the roller mold because the sand mold wraps the R parts at both ends of the blank roller and forms a strong adhesion with the blank roller after being heated and sintered by high-temperature iron (steel) water. Generally, external force is required to separate the rough roller from the roller mold and the end cover sand mold. However, due to the large weight of the casting mold and the roller cast therein, and the lack of a lifting structure that is easy to move, it is inconvenient to lift the mold and move it to the roller unpacking position, thereby affecting the work efficiency of the roller unpacking. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a tooling die and an ejection device for roller casting.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A tooling mold for rolling mill casting comprises a roller mold, wherein both ends of the roller mold are concavely formed with an accommodating portion, the accommodating portion is provided with an end cover, the inner hole of the end cover is provided with an end cover sand mold, a plurality of pin holes for installing fastening pins are provided on the side of the roller mold, the front end of the fastening pin is located at the top of the end cover, a riser box and a bottom box are respectively provided on the outside of both ends of the roller mold, a plurality of lifting parts are provided on the outside of the riser box, an upper inner hole is provided in the riser box, a middle inner hole is provided in the roller mold, and a lower inner hole is provided in the bottom box, an upper mold cavity for accommodating the upper roll neck of the blank roll is formed in the upper inner hole through the upper sand lining portion on the inner side thereof, and a lower mold cavity for accommodating the lower roll neck of the blank roll is formed in the lower inner hole through the lower sand lining portion on the inner side thereof.

[0006] In certain embodiments of the present invention, the upper inner hole, the middle inner hole, and the lower inner hole are coaxially arranged.

[0007] In certain embodiments of the present invention, the riser box includes a left riser and a right riser, and the left riser and the right riser are detachably connected.

[0008] In certain embodiments of the present invention, the bottom box includes a left box and a right box, and the left box and the right box are detachably connected.

[0009] In certain embodiments of the present invention, a sand mold groove is concavely provided on the bottom inner side of the end cover.

[0010] In certain embodiments of the present invention, a coating layer is applied in the inner hole of the roller mold to form a medium-sized cavity for accommodating the roller body portion of the blank roll, and the outer surface of the roller mold is provided with grooves along the circumference.

[0011] In certain embodiments of the present invention, the end covers are respectively an upper end cover and a lower end cover located on the lower side, the upper end cover has an upper extension portion extending from the top, the riser box is recessed with an upper matching notch corresponding to the upper extension portion, the lower end cover has a lower extension portion extending from the top, the bottom box is recessed with a lower matching notch corresponding to the lower extension portion.

[0012] In certain embodiments of the present invention, the lifting part includes a lifting column, and a limiting top block is provided on the top of the lifting column; and the plurality of lifting parts are respectively arranged at the upper, middle and lower parts of the outer side of the riser box.

[0013] On the other hand, the utility model also provides an ejection device, including a device body and the tooling mold described in any of the above embodiments, the device body is used to eject the blank roll from the tooling mold; the device body includes a lifting device and an open-box ejector, the lifting device lifts the riser box through the lifting part, and a placement part for placing the roller mold is provided on one side of the open-box ejector, and the open-box ejector is provided with an ejection end head for ejecting the blank roll.

[0014] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Several lifting parts are set on the outside of the riser box to facilitate the lifting and moving of the tooling to the roll unpacking position, which helps to ensure the efficiency of subsequent roll unpacking;

[0016] 2. Use fastening pins to hold the end cover and prevent it from falling out. At the same time, the fastening pins are easy to remove, making it easier to unpack the rolls.

[0017] 3. The lifting device and the unpacking ejector are used to eject the blank roll from the tooling die. The equipment is simple and easy to maintain. At the same time, it ensures the efficiency of roll unpacking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0021] Figure 3 For the utility model Figure 2 A magnified view of;

[0022] Figure 4 This is a working diagram of the box ejector of the utility model;

[0023] Figure 5 A schematic diagram of a blank roll of the present utility model;

[0024] Description of main reference numerals:

[0025] 1. Roller mold, 10. Pin hole, 11. Fastening pin, 12. Groove, 13. Accommodation part, 2. End cover, 20. End cover sand mold, 21. Sand mold groove, 22. Upper end piece, 23. Upper extension part, 3. Riser box, 30. Lifting part, 31. Lifting column, 32. Limiting top block, 33. Upper sand lining part, 34. Left riser, 35. Right riser, 36. Upper matching groove, 4. Bottom box, 40. Lower sand lining part, 41. Left box, 42. Right box, 43. Reinforcement rib, 44. Reinforcement ring, 5. Blank roller, 6. Box ejector, 60. Ejector end. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is to distinguish different objects rather than to describe a specific order.

[0028] In the claims, specification and the above-mentioned drawings of the present utility model, unless otherwise expressly defined, directional words, such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present utility model.

[0029] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, if the terms "fixed connection" or "fixed connection" are used, they should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0030] In the claims, description and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0031] Example 1, see Figure 1-5 :

[0032] A tooling mold for roller casting includes a roller mold 1, with accommodating portions 13 formed inwardly at both ends of the roller mold 1. The accommodating portions 13 are provided with end covers 2, and the inner holes of the end covers 2 are provided with end cover sand molds 20. A riser box 3 and a bottom box 4 are respectively provided on the outer sides of the two ends of the roller mold 1.

[0033] The side of the roller mold 1 is provided with a plurality of pin holes 10 for installing fastening pins 11. When the fastening pins 11 are installed into the pin holes 10, the front ends of the fastening pins 11 are located on the top of the end cover 2, pressing against the end cover 2 and preventing the end cover 2 from falling out.

[0034] The outer side of the riser box 3 is provided with a lifting portion 30, which is convenient for lifting the riser box 3 when in use. Preferably, the outer side of the bottom box 4 is also provided with a lifting portion 30 for easy use.

[0035] As an embodiment, the lifting portion 30 includes a lifting column 31 , and a limiting top block 32 is provided on the top of the lifting column 31 to effectively prevent the lifting device from escaping from the lifting portion 30 when in use.

[0036] As an embodiment, a plurality of lifting parts 30 are respectively arranged at the upper, middle and lower parts of the outer side of the riser box 3, so that there is no need to adjust the position of the tooling mold before lifting, thereby facilitating the lifting operation.

[0037] The riser box 3 is provided with an upper inner hole, the roller mold 1 is provided with a middle inner hole, and the bottom box 4 is provided with a lower inner hole;

[0038] The upper inner hole is formed by the upper sand lining portion 33 to form an upper cavity for accommodating the upper roll neck of the blank roll 5. The upper cavity is shaped according to the size of the upper roll neck of the blank roll 5.

[0039] The inner hole of the roller mold 1 is coated with a coating layer and forms a medium-sized cavity for accommodating the roller body portion of the blank roller 5;

[0040] A lower cavity for accommodating the lower roll neck of the rough roll 5 is formed in the lower inner hole through the lower sand lining portion 40 . The lower cavity is shaped according to the size of the lower roll neck of the rough roll 5 .

[0041] It can be understood that the upper inner hole, the middle inner hole and the lower inner hole are coaxially arranged and connected in sequence to facilitate the accommodation of the blank roller 5. The top of the upper inner hole is set as a pouring gate, and the blank roller 5 is formed after pouring and cooling; specifically, the axis of the middle inner hole coincides with the axis of the roller mold 1.

[0042] As an embodiment, the riser box 3 includes a left riser 34 and a right riser 35 , and the left riser 34 and the right riser 35 are detachably connected via a first fastener.

[0043] As an embodiment, the bottom box 4 includes a left box 41 and a right box 42, and the left box 41 and the right box 42 are detachably connected via a second fastener.

[0044] As an embodiment, a sand mold groove 21 is recessed on the inner bottom of the end cover 2. It is understood that the sand mold groove 21 located on the upper side of the roller mold 1, together with the end cover sand mold 20 and the upper sand lining portion 33 on the same side, is used to fill molding sand; the sand mold groove 21 located on the lower side of the roller mold 1, together with the end cover sand mold 20 and the lower sand lining portion 40 on the same side, is also used to fill molding sand.

[0045] As an embodiment, the end cover 2 is respectively an upper end piece 22 and a lower end piece located on the lower side. An upper extension portion 23 extends from the top of the upper end piece 22, and the riser box 3 is recessed with an upper matching groove 36 corresponding to the upper extension portion 23, so that the positioning between the riser box 3 and the upper end piece 22 is precise. A lower extension portion extends from the top of the lower end piece, and a lower matching groove is recessed with the bottom box 4 corresponding to the lower extension portion, so that the positioning between the bottom box 4 and the lower end piece is precise.

[0046] As an embodiment, the outer surface of the roller mold 1 is provided with a groove 12 along the circumferential direction.

[0047] As an embodiment, the bottom box 4 is used to support the blank roll 5 when in use. The outer side of the bottom box 4 is provided with reinforcing ribs 43 in the vertical direction and a reinforcing ring 44 in the horizontal direction.

[0048] The present application also provides an ejection device, including a device body and a tooling mold as described in any of the above embodiments. When in use, the riser box 3 and the bottom box 4 are first removed, the fastening pin 11 is removed, and then the device body is used to eject the blank rolling roll 5 from the roller mold 1 of the tooling mold.

[0049] As an embodiment, the device body includes a lifting device and an ejector 6 for unpacking. A placement portion for placing the roller mold 1 is provided on one side of the ejector 6. The lifting device lifts the riser box 3 via the lifting portion 30, thereby lifting and moving the tooling mold to the placement portion. The ejector 6 is provided with an ejection end 60 for ejecting the blank roll 5. The ejection end 60 is driven by a hydraulic device. The ejection end 60 is aligned with one end of the blank roll 5 and continuously extends under the action of the hydraulic device to produce an ejection impact on the blank roll 5, loosening the blank roll 5, thereby facilitating removal and completing the unpacking. Preferably, during use, the ejection operation is performed from both ends of the blank roll 5 to facilitate the removal of the blank roll 5.

[0050] As an embodiment, the placement portion is provided with a placement groove corresponding to the groove 12 on the outer surface of the roller mold 1 to facilitate placement of the roller mold 1.

[0051] It is understandable that the placement portion is provided with a clamping and fixing device for clamping and fixing the tooling mold, and the clamping and fixing device clamps and fixes the roller mold 1 on the placement portion, fixing the position of the roller mold 1 when the box ejector 6 is working.

[0052] The above description and embodiments are used to explain the scope of protection of the utility model, but do not constitute a limitation on the scope of protection of the utility model. Based on the enlightenment of the utility model or the above embodiments, modifications, equivalent replacements, or other improvements to the embodiments of the utility model or part of the technical features thereof that can be obtained by ordinary technicians in this field through logical analysis, reasoning, or limited experiments in combination with common knowledge, ordinary technical knowledge in this field and / or existing technology should be included in the scope of protection of the utility model.

Claims

1. A tooling die for roller casting, characterized in that: The roller mold (1) comprises a roller mold (1), both ends of the roller mold (1) are concave to form a receiving portion (13), the receiving portion (13) is provided with an end cover (2), the inner hole of the end cover (2) is provided with an end cover sand mold (20), the side of the roller mold (1) is provided with a plurality of pin holes (10) for installing a fastening pin (11), the front end of the fastening pin (11) is located at the top of the end cover (2), and the outer sides of the two ends of the roller mold (1) are respectively provided with a riser box (3), a bottom box ( 4), a plurality of lifting parts (30) are provided on the outside of the riser box (3), an upper inner hole is provided in the riser box (3), a middle inner hole is provided in the roller mold (1), and a lower inner hole is provided in the bottom box (4), an upper cavity for accommodating the upper roll neck of the blank roll (5) is formed in the upper inner hole through an upper sand lining part (33) on the inner side thereof, and a lower cavity for accommodating the lower roll neck of the blank roll (5) is formed in the lower inner hole through a lower sand lining part (40) on the inner side thereof.

2. The tooling die for roller casting according to claim 1, characterized in that: The upper inner hole, the middle inner hole and the lower inner hole are coaxially arranged.

3. The tooling die for roller casting according to claim 1, characterized in that: The riser box (3) comprises a left riser (34) and a right riser (35), and the left riser (34) and the right riser (35) are detachably connected.

4. The tooling die for roller casting according to claim 1, characterized in that: The bottom box (4) comprises a left box (41) and a right box (42), and the left box (41) and the right box (42) are detachably connected.

5. The tooling die for roller casting according to claim 1, characterized in that: A sand mold groove (21) is concavely provided on the inner bottom of the end cover (2).

6. The tooling die for roller casting according to claim 1, characterized in that: A coating layer is applied in the inner hole of the roller die (1) to form a medium-sized cavity for accommodating the roller body portion of the blank roller (5); and a groove (12) is provided on the outer surface of the roller die (1) along the circumferential direction.

7. The tooling die for roller casting according to claim 1, characterized in that: The end covers (2) are respectively an upper end cover (2) and a lower end cover located at the lower side. An upper extension portion (23) extends from the top of the upper end cover (2). The riser box (3) is recessed with an upper matching notch (36) corresponding to the upper extension portion (23). A lower extension portion extends from the top of the lower end cover. The bottom box (4) is recessed with a lower matching notch corresponding to the lower extension portion.

8. The tooling die for roller casting according to claim 1, characterized in that: The lifting part (30) includes a lifting column (31), and a limiting top block (32) is provided on the top of the lifting column (31); a plurality of lifting parts (30) are respectively arranged at the upper part, the middle part and the lower part of the outer side of the riser box (3).

9. Ejector device, characterized by: The invention comprises a device body and a tooling mold for roller casting as described in any one of claims 1 to 8, wherein the device body is used to eject the blank roller from the tooling mold, and the device body comprises a lifting device and an ejector (6) for opening the box, wherein the lifting device lifts the riser box (3) through a lifting portion (30), and a placement portion for placing the roller mold is provided on one side of the ejector (6), and the ejector (6) is provided with an ejection end head (60) for ejecting the blank roller (5).

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