Ejector pin of pouring mold

Abstract

The utility model relates to the technical field of mold accessories, and discloses an ejector pin of a pouring mold, which comprises a base and a second ejector pin, a first ejector pin is arranged at the top of the base, the second ejector pin is positioned above the first ejector pin, and an ejector pin head is arranged at the top of the second ejector pin. And a buffer assembly which extends to the top of the first ejector pin and is connected with the second ejector pin is arranged in the first ejector pin, the buffer assembly comprises a mounting cavity, the mounting cavity is formed in the first ejector pin, and two sliding grooves which communicate with the left side and the right side of the inner wall of the mounting cavity correspondingly are formed in the first ejector pin. According to the ejector pin of the pouring mold, by arranging the buffering assembly and the spring, when the ejector pin body upwards ejects out to make contact with a product, the second ejector pin moves downwards to push the supporting rod to move, the tension of the spring can push the transverse plate to move downwards, the stability of the transverse plate is guaranteed under supporting of the sliding groove and the limiting block, and therefore the buffering effect is effectively achieved; the purpose of reducing impact force of the buffering structure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold accessories, in particular to an ejector pin of a casting mold. Background Art

[0002] The Chinese patent with publication number CN203063007U discloses a mold ejector, including an ejector rod and an ejector countersunk head integrated with the ejector rod, the ejector countersunk head is located at one end of the ejector rod, and the outer diameter of the ejector countersunk head is greater than the outer diameter of the ejector rod, the ejector rod is a two-stage structure, including a first ejector rod and a second ejector rod, the outer diameter of the second ejector rod is smaller than the outer diameter of the first ejector rod, and the ejector countersunk head is located at one end of the second ejector rod. Compared with the prior art, the mold ejector of the utility model is a two-stage structure with two different outer diameter sizes, which can effectively reduce the friction between the ejector rod and the inner surface of the mold mounting hole, extend the use mission of the mold ejector, and is easy to use.

[0003] The above-mentioned prior art solutions have the following defects: there is no certain buffer structure, the impact force of the ejector during use is too large, the product cannot be protected to a certain extent, and the use of the ejector is affected. Therefore, an ejector of a casting mold is proposed to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an ejector pin for a casting mold, which has the advantages of a buffer structure to reduce impact force, etc., and solves the problems mentioned in the above background technology.

[0006] (II) Technical solution

[0007] In order to achieve the purpose of reducing impact force with the above-mentioned buffer structure, the utility model provides the following technical solution: a casting mold ejector, comprising a base and a second ejector, wherein a first ejector is arranged on the top of the base, the second ejector is located above the first ejector, an ejector head is arranged on the top of the second ejector, and a buffer component extending to the top of the first ejector and connected to the second ejector is arranged inside the first ejector.

[0008] Preferably, the buffer assembly includes an installation cavity, an installation cavity is defined inside the first ejector, two slide grooves are defined inside the first ejector and are respectively connected to the left and right sides of the inner wall of the installation cavity, a cross plate is slidably installed between the front and rear sides of the inner wall of the installation cavity, two support rods are fixedly installed on the top of the cross plate and extend to the inner side of the second ejector and are fixedly connected thereto, a spring is fixedly installed on the top of the cross plate and is fixedly connected to the top wall of the installation cavity and is sleeved on the outside of the support rod, and limit blocks are fixedly installed on the left and right sides of the bottom of the cross plate and extend to the inner sides of the two slide grooves and are slidably connected thereto.

[0009] Preferably, two limiting circular holes are formed on the top of the first ejector pin and are connected to the top wall of the installation cavity. The size of the limiting circular holes is adapted to the support rod.

[0010] Preferably, a mounting groove is formed at the bottom of the second ejector pin, and the support rod extends into the mounting groove and is fixedly connected thereto.

[0011] Preferably, the diameter of the first ejector pin is smaller than the diameter of the second ejector pin.

[0012] Preferably, the two support rods are symmetrically distributed.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an ejector pin for a casting mold, which has the following beneficial effects:

[0015] The ejector of the casting mold is provided with a buffer assembly and a spring. When the ejector body is pushed upward to contact the product, the second ejector moves downward to push the support rod to move. The tension of the spring pushes the cross plate downward. The stability of the cross plate is guaranteed under the support of the slide groove and the limit block, thereby effectively playing a buffering role and achieving the purpose of reducing impact force with the buffer structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle.

[0018] In the figure: 1 base, 2 first ejector pin, 3 second ejector pin, 4 ejector pin head, 5 buffer assembly, 51 mounting cavity, 52 slide groove, 53 cross plate, 54 support rod, 55 spring, 56 limit block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2The utility model provides a technical solution: an ejector pin of a casting mold, comprising a base 1 and a second ejector pin 3, wherein a first ejector pin 2 is fixedly mounted on the top of the base 1, the second ejector pin 3 is located above the first ejector pin 2, an ejector head 4 is fixedly mounted on the top of the second ejector pin 3, and a buffer component 5 extending to the top of the first ejector pin 2 and connected to the second ejector pin 3 is installed inside the first ejector pin 2.

[0021] The diameter of the first ejector pin 2 is smaller than the diameter of the second ejector pin 3 .

[0022] The buffer assembly 5 includes an installation cavity 51, the first ejector 2 has an installation cavity 51 formed inside, the first ejector 2 has two slide grooves 52 formed inside and connected to the left and right sides of the inner wall of the installation cavity 51, a cross plate 53 is slidably installed between the front and rear sides of the inner wall of the installation cavity 51, two support rods 54 are fixedly installed on the top of the cross plate 53 and extend to the inner side of the second ejector 3 and are fixedly connected thereto, a spring 55 is fixedly installed on the top of the cross plate 53 and is fixedly connected to the inner top wall of the installation cavity 51 and is sleeved on the outer side of the support rod 54, the elastic coefficient of the spring 55 can be set according to requirements, and limit blocks 56 are fixedly installed on the left and right sides of the bottom of the cross plate 53 and extend to the inner sides of the two slide grooves 52 and are slidably connected thereto.

[0023] By setting the buffer assembly 5 and the spring 55, when the ejector body is pushed upward to contact the product, the second ejector 3 moves downward to push the support rod 54 to move, and the tension of the spring 55 will push the cross plate 53 downward. With the support of the slide groove 52 and the limit block 56, the stability of the cross plate 53 is guaranteed, thereby effectively playing a buffering role and achieving the purpose of reducing the impact force of the buffer structure.

[0024] Two limiting circular holes are provided at the top of the first ejector pin 2 and are connected to the top wall of the installation cavity 51. The size of the limiting circular holes is adapted to the support rod 54. A mounting groove is provided at the bottom of the second ejector pin 3. The support rod 54 extends into the interior of the mounting groove and is fixedly connected thereto. The two support rods 54 are symmetrically distributed.

[0025] It is worth noting that the standard parts appearing in this application document can all be purchased from the market, and the specific connection methods of each part are connected using mature conventional welding methods in the prior art. In addition, the machinery, parts and equipment all use conventional models in the prior art, and the circuit connection uses conventional connection methods in the prior art. The contents not described in detail in the description belong to the prior art known to professional and technical personnel in this field and will not be described in detail here.

[0026] In summary, the ejector of the casting mold is provided with a buffer assembly 5 and a spring 55. When the ejector body is pushed upward to contact the product, the second ejector 3 moves downward to push the support rod 54 to move. The tension of the spring 55 pushes the cross plate 53 downward. With the support of the slide groove 52 and the limit block 56, the stability of the cross plate 53 is guaranteed, thereby effectively playing a buffering role and achieving the purpose of reducing the impact force with the buffer structure. The problem that the ejector of the existing casting mold does not have a certain buffer structure, the impact force of the ejector is too large during use, and the product cannot be protected to a certain extent, which affects the use of the ejector.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ejector pin of a casting mold, comprising a base and a second ejector pin, wherein a first ejector pin is disposed on the top of the base, the second ejector pin is located above the first ejector pin, and an ejector pin head is disposed on the top of the second ejector pin, wherein: A buffer component is arranged inside the first ejector pin, extending to the top of the first ejector pin and connected to the second ejector pin.

2. The ejector pin of a casting mold according to claim 1, characterized in that: The buffer assembly includes an installation cavity, the interior of the first ejector is provided with an installation cavity, the interior of the first ejector is provided with two slide grooves which are respectively connected to the left and right sides of the inner wall of the installation cavity, a cross plate is slidably installed between the front and rear sides of the inner wall of the installation cavity, two support rods which extend to the inner side of the second ejector and are fixedly connected thereto are fixedly installed on the top of the cross plate, a spring which is fixedly connected to the top wall of the installation cavity and is sleeved on the outside of the support rod is fixedly installed on the top of the cross plate, and limit blocks which extend to the inner sides of the two slide grooves and are slidably connected thereto are fixedly installed on the left and right sides of the bottom of the cross plate.

3. The ejector pin of a casting mold according to claim 2, characterized in that: Two limiting circular holes are provided on the top of the first ejector pin and are connected to the top wall of the installation cavity. The size of the limiting circular holes is adapted to the support rod.

4. The ejector pin of a casting mold according to claim 2, characterized in that: A mounting groove is formed at the bottom of the second ejector pin, and the support rod extends into the mounting groove and is fixedly connected thereto.

5. The ejector pin of a casting mold according to claim 1, characterized in that: The diameter of the first ejector pin is smaller than the diameter of the second ejector pin.

6. The ejector pin of a casting mold according to claim 2, characterized in that: The two support rods are symmetrically distributed.

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