Fixture for F-TR lock precoated sand shell

Abstract

The utility model relates to the technical field of clamps, in particular to a clamp for an F-TR lock precoated sand shell, which comprises a first plate body and a second plate body, the first plate body is provided with an opening, any two opposite sides of the second plate body are respectively provided with a hold-down mechanism, each hold-down mechanism comprises a support and a hold-down assembly, the support is fixedly connected onto the second plate body, and the hold-down assembly is fixedly connected onto the first plate body. The pressing assembly comprises a rotating shaft rotationally connected to the support, a pressing block is fixedly connected to the rotating shaft, a rotating handle is further arranged on the rotating shaft, the locking assembly comprises a locking rod, the locking rod is installed on the support and is in sliding fit with the support, and an inclined face is arranged at the end, close to the rotating handle, of the locking rod; an elastic piece is further arranged between the locking rod and the support. The utility model aims to solve the technical problems that when a production worker uses an existing clamp, four locking parts need to be sequentially rotated to clamp a sand shell, and the operation process is relatively tedious.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp used for an F-TR lock head coated sand shell. Background Art

[0002] The container locking device is an important part of the container flat car. It is related to the locking performance during the container transportation and the smoothness of the loading and unloading process. It plays a very important role in ensuring the transportation safety of the container and improving the efficiency of container loading and unloading. The F-TR lock is one of the most common locks in the container locking device. The F-TR lock is independently developed by my country and has the advantages of simple structure, durability, moderate locking and smoothness.

[0003] The production of F-TR locks is mainly made by casting and demolding the F-TR lock coated sand shell. During the casting process, in order to prevent the high temperature molten steel from breaking the shell, a metal clamp is usually used to fix the sand shell. Figure 1 The existing metal clamp includes an upper plate body 11 and a lower plate body 12. The upper plate body 11 is provided with a first through hole 13 for the riser and the pouring cup to pass through. The four corners of the upper plate body 11 are also provided with second through holes 14. The four corners of the lower plate body 12 are provided with connecting columns 15. The four connecting columns 15 extend vertically upward and pass through the four second through holes 14 respectively. The top sliding sleeve of the connecting column 15 is provided with a locking portion 16. The locking portion 16 is provided with an internal thread. The top of the connecting column 15 is provided with an external thread. The locking portion 16 is connected to the connecting column 15 through threaded cooperation. When the above-mentioned clamp is used in practice, the lower plate body 12 is first placed on the ground, and then the lower mold body of the sand shell is placed on the lower plate body 12, and then the upper mold body is covered on the lower mold body, and then the upper plate body 11 is moved so that the first through hole 13 is aligned with the riser and pouring cup of the upper mold body, and then the upper plate body 11 is slowly moved downward until the upper plate body 11 contacts the upper mold body. In the process of moving the upper plate body 11 downward, the four connecting columns 15 respectively pass through the second through holes 14. After transferring the upper plate body 11 to the upper mold body, the locking part 16 is put on the connecting column 15, and the locking part 16 is gradually rotated. During the rotation process, the locking part 16 will squeeze the lower plate body 12 downward, and the lower plate body 12 will squeeze the sand shell downward, so that the sand shell is clamped under the cooperation of the lower plate body 12 and the upper plate body 11.

[0004] When the above-mentioned clamp is used, the production personnel need to rotate the four locking parts in sequence to clamp the sand shell, and the operation process is relatively cumbersome. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a clamp for F-TR lock head coated sand shell to solve the technical problem that when using the existing clamp, production personnel need to rotate four locking parts in sequence to clamp the sand shell, and the operation process is relatively cumbersome.

[0006] The utility model is realized by the following technical solutions:

[0007] A fixture for an F-TR lock head coated sand shell, comprising a first plate body and a second plate body respectively disposed at the upper and lower ends of the sand shell, the first plate body being provided with an opening for a riser and a pouring cup to pass through, and any two opposite sides of the second plate body being provided with a clamping mechanism for clamping the first plate body;

[0008] The clamping mechanism comprises a bracket and a clamping assembly, wherein the bracket is fixedly connected to the second plate body, and the clamping assembly comprises a rotating shaft rotatably connected to the bracket, and a clamping block for clamping the first plate body during rotation is fixedly connected to the rotating shaft, and a rotating handle is also provided on the rotating shaft;

[0009] The clamping mechanism also includes a locking assembly, which includes a locking rod, which is mounted on a bracket and slidably cooperates with the bracket. An inclined surface is provided at one end of the locking rod close to the rotating handle. During the rotation of the rotating handle, the inclined surface is used as a guide surface to push the locking rod to slide away from the rotating handle. An elastic member for elastically resetting the locking rod is also provided between the locking rod and the bracket.

[0010] Furthermore, the rotating handle is a U-shaped rod structure consisting of two vertical rods and a horizontal rod, one end of the two vertical rods are respectively fixedly connected to the two ends of the horizontal rod, and the other ends of the two vertical rods are fixedly connected to the rotating shaft, and during the rotation of one of the vertical rods, the locking rod is pushed to slide away from the rotating handle.

[0011] Furthermore, one of the clamping mechanisms includes two sets of locking components, which are respectively located on opposite sides of the two vertical rods. During the rotation process, the two vertical rods respectively push the two locking rods to slide in a direction away from the rotating handle.

[0012] Furthermore, both ends of the rotating shaft pass through the bracket, and both ends of the rotating shaft are provided with limiting plates, and opposite sides of the two limiting plates are in contact with the bracket.

[0013] Furthermore, an elastic sheet is arranged on the limit sheet to elastically reset the pressing assembly after rotation, and a limit column is arranged on the bracket. The elastic sheet contacts the limit column during rotation and causes the elastic sheet to bend gradually.

[0014] Furthermore, a rubber block is arranged at the bottom of the pressing block.

[0015] Furthermore, a handle is provided at one end of the locking rod away from the inclined surface.

[0016] The beneficial effects of the utility model are:

[0017] The clamp for the F-TR lock head coated sand shell drives the pressing block to rotate by rotating the rotating handle. The pressing block presses the first plate body during rotation, and the locking component can limit the position of the rotating handle to maintain the pressing state of the pressing block on the first plate body. Compared with the prior art, the first plate body can be pressed by rotating the pressing block, and the operation process is relatively simpler.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an existing fixture;

[0020] Figure 2 This is a schematic diagram of the structure in which the clamp is not installed on the sand shell in this embodiment;

[0021] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 4 It is a schematic diagram of the structure after the clamp is installed on the sand shell in this embodiment.

[0023] In the figure: upper plate 11, lower plate 12, first through hole 13, second through hole 14, connecting column 15, locking portion 16, first plate 21, opening 211, second plate 22, bracket 23, connecting rod 231, rotating shaft 241, pressing block 242, rotating handle 243, vertical rod 2431, horizontal rod 2432, locking rod 251, inclined surface 2511, elastic member 252, limiting sheet 26, elastic sheet 271, limiting column 272, rubber block 28, handle 29. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the above description of the utility model, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0029] See also Figure 2-4 The utility model provides a technical solution: a fixture for F-TR lock head coated sand shell, comprising a first plate body 21 and a second plate body 22 respectively placed at the upper and lower ends of the sand shell, the first plate body 21 is provided with an opening 211 for a riser and a pouring cup to pass through, when the first plate body 21 is placed, the first plate body 21 passes through the riser and the pouring cup on the upper mold body through the opening 211, and any opposite sides of the second plate body 22 are provided with a clamping mechanism for clamping the first plate body 21;

[0030] The clamping mechanism includes a bracket 23 and a clamping assembly. The bracket 23 is fixedly connected to the second plate body 22. The clamping assembly includes a rotating shaft 241 rotatably connected to the bracket 23. A clamping block 242 is fixedly connected to the rotating shaft 241 for downwardly clamping the first plate body 21 during the rotation process. The clamping block 242 has elastic deformation capability so as to better clamp the first plate body 21. A rotating handle 243 is also provided on the rotating shaft 241 for rotating the rotating shaft 241, thereby rotating the clamping block 242.

[0031] The clamping mechanism also includes a locking assembly, which includes a locking rod 251. The locking rod 251 is installed on the bracket 23 and slidably cooperates with the bracket 23. An inclined surface 2511 is provided at one end of the locking rod 251 close to the rotating handle 243. During the rotation of the rotating handle 243, the inclined surface 2511 is used as a guide surface to push the locking rod 251 to slide away from the rotating handle 243. An elastic member 252 for elastically resetting the locking rod 251 is also provided between the locking rod 251 and the bracket 23.

[0032] When in use, first place the second plate 22 flat on the ground, then place the sand shell lower mold on the second plate, then transfer the upper mold, cover the upper mold with the lower mold, then move the first plate 21 so that the opening 211 is aligned with the riser and pouring cup of the upper mold, and then slowly move the first plate 21 downward until the first plate 21 contacts the upper mold, so that the first plate 21 is placed on the upper mold, and then turn the rotating handle 243. The rotating handle 243 will drive the pressing block 242 to rotate together during the rotation process, and the pressing block 242 will rotate during the rotation. During the process, the first plate 21 is pressed, and the rotating handle 243 pushes the locking rod 251 to slide away from the rotating handle 243 with the inclined surface 2511 as the guide surface. The elastic member 252 is elastically stressed during this process. When the pressing block 242 contacts the second plate 22, the rotating handle 243 just passes through the locking rod 251. The locking rod 251 is elastically reset under the elastic force of the elastic member 252, thereby limiting the position of the rotating handle 243 and preventing the rotating handle 243 from rotating, thereby maintaining the pressing state of the first plate 21. Compared with the existing clamp, the production personnel need to rotate the four locking parts 16 in sequence to achieve the clamping of the sand shell, and the operation process is relatively cumbersome. After the first plate 21 and the second plate 22 are installed, the clamping can be achieved by rotating the rotating handle 243, and the operation process is relatively simple.

[0033] The bracket 23 is composed of two connecting rods 231 vertically arranged on the second plate body 22. The two connecting rods 231 are respectively arranged at two corners of one side of the length direction of the second plate body 22. One end of the connecting rod 231 is fixedly connected to the second plate body 22, and the other end extends vertically upward. The rotating shaft 241 is arranged between the two connecting rods 231, and the two ends of the rotating shaft 241 extend through the two connecting rods 231 respectively. A strip-shaped clamping block 242 is arranged between the two connecting rods 231. The clamping block 242 is welded on the rotating shaft 241, and the length direction of the clamping block 242 is consistent with that of the rotating shaft 241. The locking rod 251 is slidably penetrated on one of the connecting rods 231, and the locking rod 251 is away from the inclined One end of the surface 2511 is fixedly connected to a mounting plate, and a spring is provided on the outer sleeve of the locking rod 251. The spring is the above-mentioned elastic member 252. One end of the spring is connected to the connecting rod 231, and the other end is connected to the mounting plate. During the rotation of the rotating handle 243, the locking rod 251 will be pushed to slide in the direction away from the rotating handle 243. During this process, the spring is elastically stressed. After the rotating handle 243 passes through the locking rod 251, the locking rod 251 elastically recovers under the elastic force of the spring, thereby locking the rotating handle 243. When unlocking, it is only necessary to pull the locking rod 251 outward to disengage the locking rod 251 from the rotating handle 243. At this time, the rotating handle 243 can be rotated back to unlock the clamp.

[0034] In this embodiment: the rotating handle 243 is a U-shaped rod structure composed of two vertical rods 2431 and a horizontal rod 2432, one end of the two vertical rods 2431 is fixedly connected to the two ends of the horizontal rod 2432 respectively, and the other ends of the two vertical rods 2431 are fixedly connected to the rotating shaft 241, and during the rotation of one of the vertical rods 2431, it pushes the locking rod 251 to slide away from the rotating handle 243.

[0035] In order to facilitate the transfer of the sand shell after it is clamped and fixed, the rotating handle 243 is designed as a U-shaped rod structure consisting of two vertical rods 2431 and a horizontal rod 2432. One end of the two vertical rods 2431 are respectively integrated with the two ends of the horizontal rod 2432, and the other ends of the two vertical rods 2431 are welded to the rotating shaft 241. The rotating handle 243 serves as an operating handle of the clamping block during the rotation of the clamping block, which facilitates the rotation of the clamping block. In the process of transferring the sand shell after it is clamped and fixed, it serves as a traction part for transferring the sand shell, which facilitates the transfer of the sand shell.

[0036] In this embodiment, a clamping mechanism includes two sets of locking components, which are respectively located at opposite sides of the two vertical rods 2431. During the rotation process, the two vertical rods 2431 respectively push the two locking rods 251 to slide away from the rotating handle 243.

[0037] By designing the locking assembly into two groups, the locking rods 251 of the two groups of locking assemblies respectively limit the positions of the two vertical rods 2431, so that the pressing force of the pressing block 242 on the first plate body 21 is more balanced, so that it has a better pressing effect.

[0038] In this embodiment, both ends of the rotating shaft 241 pass through the bracket 23 , and both ends of the rotating shaft 241 are provided with limiting pieces 26 , and opposite sides of the two limiting pieces 26 abut against the bracket 23 .

[0039] By using the limiting plate 26 as a limiting structure of the rotating shaft 241, the position of the rotating shaft 241 is relatively fixed, which effectively reduces the possibility of axial movement of the rotating shaft 241, thereby reducing the possibility of the rotating handle 243 moving along the axial direction of the rotating shaft 241. As a result, when the locking rod 251 limits the position of the rotating handle 243, the locking rod 251 will not be separated from the rotating handle 243 due to the change in the position of the locking rod 251, causing locking failure.

[0040] In this embodiment: an elastic sheet 271 is provided on the limiting sheet 26 to elastically reset the pressing assembly after rotation, and a limiting column 272 is provided on the bracket 23. The elastic sheet 271 contacts the limiting column 272 during rotation and causes the elastic sheet 271 to gradually bend.

[0041] By using the elastic sheet 271 as the elastic reset structure of the clamping assembly, during the process of rotating the rotating handle 243, the elastic sheet 271 contacts the limiting column 272 and causes the elastic sheet 271 to gradually bend until the locking rod 251 locks the position of the rotating handle 243. At this time, the elastic sheet 271 remains in a locked state, and the locking rod 251 is pulled outward to disengage the locking rod 251 from the rotating handle 243. The clamping assembly is elastically reset under the elastic force of the elastic sheet 271, which reduces the process of manually rotating the rotating handle 243 to release the clamp lock, making it more convenient to use.

[0042] In this embodiment: a rubber block 28 is disposed at the bottom of the pressing block 242 .

[0043] In order to increase the buffer between the pressing block 242 and the first plate body 21, a rubber block 28 is arranged at the bottom of the pressing block 242. Since the rubber block 28 has a certain elastic deformation ability, when the pressing block 242 presses the first plate body 21, it has a certain buffer space to prevent the sand shell from being damaged due to excessive pressing force.

[0044] In this embodiment, a handle 29 is provided at one end of the locking rod 251 away from the inclined surface 2511 .

[0045] The handle 29 is provided to facilitate pulling the locking rod 251 .

[0046] In summary, the use steps of the fixture for the F-TR lock coated sand shell of the utility model are as follows;

[0047] The clamping process is as follows:

[0048] S1: Lay the second plate flat on the ground;

[0049] S2: placing the sand shell lower mold body on the second plate body;

[0050] S3: moving the upper mold body of the sand shell so that the upper mold body of the sand shell covers the lower mold body of the sand shell;

[0051] S4: moving the first plate body, aligning the opening of the first plate body with the riser and the pouring cup of the sand shell upper mold body, and then slowly moving the first plate body downward until the first plate body contacts the sand shell upper mold body, thereby placing the first plate body on the sand shell upper mold body;

[0052] S5: Turn the rotating handle. The rotating handle will drive the pressing block to rotate together during the rotation process. The pressing block will press the first plate body during the rotation process. At the same time, the rotating handle will use the inclined surface as a guide surface to push the locking rod to slide in the direction away from the rotating handle. The spring is elastically stressed during this process. When the pressing block contacts the second plate body, the rotating handle just passes through the locking rod. The locking rod is elastically reset under the elastic force of the spring. The locking rod limits the position of the rotating handle, thereby maintaining the pressing state of the pressing block on the second plate body. At the same time, the elastic sheet will contact the limiting column during the rotation of the rotating handle and gradually bend the elastic sheet.

[0053] S6: Subsequently, the sand shell and the fixture are transferred as a whole to the casting trough for casting production;

[0054] The specific disassembly process is:

[0055] S1: After the pouring is completed and cooled, the locking rod is pulled outward, and the spring is elastically stressed during this process. When the locking rod is separated from the rotating handle, the pressing block is elastically reset under the elastic force of the elastic sheet. At this time, the pressing block releases the pressing of the first plate body;

[0056] S2: Release the locking rod, and the locking rod will be elastically reset under the elastic force of the spring;

[0057] S3: moving the second plate body to the ground, so that the second plate body is out of contact with the upper mold body of the sand shell;

[0058] S4: According to the casting disassembly process, remove the sand shell upper mold body and the sand shell lower mold body;

[0059] S5: Arrange and collect the fixture and the sand shell upper mold body and the sand shell lower mold body.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fixture for F-TR lock head coated sand shell, characterized by: It comprises a first plate body and a second plate body respectively disposed at the upper and lower ends of the sand shell, the first plate body is provided with an opening for the riser and the pouring cup to pass through, and any two opposite sides of the second plate body are provided with a clamping mechanism for clamping the first plate body; The clamping mechanism comprises a bracket and a clamping assembly, wherein the bracket is fixedly connected to the second plate body, and the clamping assembly comprises a rotating shaft rotatably connected to the bracket, and a clamping block for pressing the first plate body downward during rotation is fixedly connected to the rotating shaft, and a rotating handle is also provided on the rotating shaft; The clamping mechanism also includes a locking assembly, which includes a locking rod, which is mounted on a bracket and slidably cooperates with the bracket. An inclined surface is provided at one end of the locking rod close to the rotating handle. During the rotation of the rotating handle, the inclined surface is used as a guide surface to push the locking rod to slide away from the rotating handle. An elastic member for elastically resetting the locking rod is also provided between the locking rod and the bracket.

2. A fixture for F-TR lock head coated sand shell according to claim 1, characterized in that: The rotating handle is a U-shaped rod structure consisting of two vertical rods and a horizontal rod, one end of the two vertical rods are fixedly connected to the two ends of the horizontal rod respectively, and the other ends of the two vertical rods are fixedly connected to the rotating shaft. During the rotation of one of the vertical rods, the locking rod is pushed to slide away from the rotating handle.

3. A fixture for F-TR lock head coated sand shell according to claim 2, characterized in that: One of the clamping mechanisms comprises two sets of locking components, which are respectively located on opposite sides of the two vertical rods. During the rotation process, the two vertical rods respectively push the two locking rods to slide in a direction away from the rotating handle.

4. A fixture for F-TR lock head coated sand shell according to any one of claims 1 to 3, characterized in that: Both ends of the rotating shaft pass through the bracket, and both ends of the rotating shaft are provided with limiting plates, and opposite sides of the two limiting plates are in contact with the bracket.

5. A fixture for F-TR lock head coated sand shell according to claim 4, characterized in that: The limiting piece is provided with an elastic piece for compressing the assembly to elastically reset after rotation, and the bracket is provided with a limiting column. The elastic piece contacts the limiting column during rotation and causes the elastic piece to bend gradually.

6. A fixture for F-TR lock head coated sand shell according to claim 5, characterized in that: A rubber block is arranged at the bottom of the pressing block.

7. A fixture for F-TR lock head coated sand shell according to claim 6, characterized in that: A handle is arranged at one end of the locking rod away from the inclined surface.

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