Sand blasting tool and preparation mold thereof

Abstract

The sand blasting tool comprises a core plate and a silica gel structure, the silica gel structure wraps the outer side of the core plate, and a product containing groove is formed in the side, away from the core plate, of the silica gel structure. According to the utility model, the sand blasting tool consists of the core plate and the silica gel structure, and the plastic core plate printed by PLA is arranged in the silica gel, so that the overall rigidity of the tool is effectively improved; the silica gel material has good elasticity and can effectively coat the polished surface of the product, so that fine sand is prevented from hitting a non-sand-blasting surface during sand blasting; the product is more convenient to put in and take out, and the non-sand-blasting surface of the product is not easily scratched when the product is taken out; the toughness of silica gel is superior to that of a printed plastic material, chippings are not prone to being removed by sand grains in the sand blasting process, the service life is longer, and meanwhile the situation that the chippings pollute the sand grains subjected to sand blasting can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field related to sandblasting tooling, in particular to a sandblasting tooling and a preparation mold thereof. Background Art

[0002] Bone cement prosthesis is one of the temporary fixation methods for metal prosthesis infection, and has now become a standard procedure for the second-stage treatment of joint prosthesis infection. Bone cement prosthesis has high hardness and can provide patients with temporary joint stability. Antibiotics can be added to bone cement to improve its anti-infection ability. It is also easy to plasticize and can be used in joints of different sizes and types. It is also relatively inexpensive.

[0003] Conventional bone cement knee prostheses include two surfaces: a sandblasted surface that is bonded to the bone cement and a polished surface that is in contact with the tibial liner prosthesis and the soft tissue of the joint capsule. The significance of the sandblasted surface is to increase the bonding force between the sandblasted surface and the bone cement and improve the stability of the interface between the prosthesis and the bone cement.

[0004] When sandblasting the surface of a prosthesis during the production process, the non-sandblasting surface needs to be protected. To this end, we propose a sandblasting tool and a preparation mold thereof. Utility Model Content

[0005] The utility model aims to provide a sandblasting tool and a preparation mold thereof, so as to solve the problem that the non-sandblasting surface needs to be protected when the surface of the prosthesis is sandblasted during the production process.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sandblasting tool, comprising a core plate and a silicone structure, wherein the outer side of the core plate is wrapped with the silicone structure, and a product placement groove is arranged on the side of the silicone structure away from the core plate.

[0007] Preferably, a limiting hole is provided on the core plate.

[0008] Preferably, the core plate is made of PLA material.

[0009] A preparation mold for a sandblasting tool comprises a core plate, a casting lower mold and a casting upper mold, wherein the core plate is located between the casting lower mold and the casting upper mold, a pouring pipe is installed on the side of the casting lower mold, a second exhaust port is opened on the casting upper mold, a first exhaust port corresponding to the second exhaust port is opened on the casting lower mold, and an exhaust pipe is installed on the casting lower mold at the first exhaust port.

[0010] Preferably, a pouring port corresponding to the pouring pipe is opened on the side of the lower casting mold.

[0011] Preferably, a limiting hole is provided on the core plate, and a limiting protrusion cooperating with the limiting hole is provided on the inner side of the casting upper mold.

[0012] Preferably, the core plate, the pouring pipe, the lower casting mold, the upper casting mold and the exhaust pipe are all made of PLA material.

[0013] Preferably, the exhaust pipe is connected to the cavity between the lower casting mold and the upper casting mold, and the pouring pipe is connected to the cavity between the lower casting mold and the upper casting mold.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The sandblasting tooling is composed of a core plate and a silicone structure. The silicone has a plastic core plate printed with PLA inside, which effectively improves the overall rigidity of the tooling. The silicone material has good elasticity and can be effectively coated on the polished surface of the product to prevent fine sand from hitting the non-sandblasting surface during sandblasting. It is more convenient to put in and take out, and it is not easy to scratch the non-sandblasting surface of the product when taking it out, so the non-sandblasting surface is protected.

[0016] 2. Longer service life. The toughness of silicone is better than that of printed plastic materials. It is not easy to be knocked off by sand particles during the sandblasting process. It has a longer service life and can effectively prevent the debris from contaminating the sand particles used for sandblasting.

[0017] 3. Recycling and lower manufacturing cost. Only the sandblasted silicone part of the tooling and mold is a wearing part. The casting mold and core plate can be recycled. After the silicone surface is worn out, it can be scraped off from the core plate, and the core plate can be put into the silicone mold and re-cast. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of a preparation mold of the sandblasting tooling of the utility model;

[0020] Figure 2 This utility model Figure 1 A schematic diagram of the structure from another perspective;

[0021] Figure 3 It is an exploded view of the preparation mold of the sandblasting tooling of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the sandblasting tooling of the utility model;

[0023] Figure 5 This utility model Figure 4 Schematic diagram of the structure from another perspective.

[0024] In the figure: 1. core plate; 11. limiting hole; 2. silicone structure; 21. product placement groove; 3. pouring pipe; 4. pouring lower mold; 41. pouring port; 42. first exhaust port; 5. pouring upper mold; 51. limiting protrusion; 52. second exhaust port; 6. exhaust pipe. DETAILED DESCRIPTION

[0025] 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. 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. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0026] See also Figure 4-5 In the embodiment of the utility model, a sandblasting tool comprises a core plate 1 and a silicone structure 2, the core plate 1 is wrapped with a silicone structure 2 on the outside, and a product placement groove 21 is provided on the side of the silicone structure 2 away from the core plate 1; a limiting hole 11 is provided on the core plate 1; and the core plate 1 is made of PLA material. Through the silicone structure 2, the tool can be put on the protective surface of the sandblasting. The sandblasting tool is composed of a core plate and a silicone structure. The PLA-printed plastic core plate inside the silicone effectively improves the overall rigidity of the tool; the silicone material has good elasticity and can be effectively coated on the polished surface of the product to prevent fine sand from hitting the non-sandblasting surface during sandblasting; it is more convenient to put in and take out, and it is not easy to scratch the non-sandblasting surface of the product when taking out. Longer service life, the toughness of silicone is better than that of printed plastic materials, and it is not easy to be knocked off by sand particles during the sandblasting process. It has a longer service life and can effectively prevent the debris from contaminating the sand particles of the sandblasting.

[0027] See also Figure 1-3In the embodiment of the utility model, a preparation mold of a sandblasting tool comprises a core plate 1, a casting lower mold 4 and a casting upper mold 5, wherein the core plate 1 is located between the casting lower mold 4 and the casting upper mold 5, a pouring pipe 3 is installed on the side of the casting lower mold 4, a second exhaust port 52 is opened on the casting upper mold 5, a first exhaust port 42 corresponding to the second exhaust port 52 is opened on the casting lower mold 4, and an exhaust pipe 6 is installed at the first exhaust port 42 of the casting lower mold 4 for exhaust during casting; a casting port 41 corresponding to the pouring pipe is opened on the side of the casting lower mold 4; a limiting hole 11 is opened on the core plate 1, and a A limiting protrusion 51 is provided to cooperate with the limiting hole 11, and the cooperation between the limiting hole 11 and the limiting protrusion 51 is used to limit the core plate 1; the exhaust pipe 6 is connected to the cavity between the casting lower mold 4 and the casting upper mold 5, and the pouring pipe 3 is connected to the cavity between the casting lower mold 4 and the casting upper mold 5; the core plate 1, pouring pipe 3, casting lower mold 4, casting upper mold 5 and exhaust pipe 6 are all made of PLA material; recycling and lower manufacturing cost, only the sandblasted silicone part of the tooling and mold is a wearing part, the casting mold and the core plate can be recycled, the silicone surface can be scraped off the core plate after loss, and the core plate can be loaded into the silicone mold and re-cast.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sandblasting tool, characterized in that: It comprises a core plate (1) and a silica gel structure (2), wherein the silica gel structure (2) is wrapped around the outer side of the core plate (1), and a product placement groove (21) is provided on a side of the silica gel structure (2) away from the core plate (1).

2. A sandblasting tool according to claim 1, characterized in that: The core plate (1) is provided with a limiting hole (11).

3. A preparation mold for sandblasting tooling, characterized in that: The invention comprises a core plate (1), a lower casting mold (4) and an upper casting mold (5), wherein the core plate (1) is located between the lower casting mold (4) and the upper casting mold (5), a pouring pipe (3) is installed on the side of the lower casting mold (4), the upper casting mold (5) is provided with a second exhaust port (52), the lower casting mold (4) is provided with a first exhaust port (42) corresponding to the second exhaust port (52), and an exhaust pipe (6) is installed at the first exhaust port (42) of the lower casting mold (4).

4. The preparation mold for a sandblasting tool according to claim 3, characterized in that: A pouring port (41) corresponding to the pouring pipe is provided on the side of the lower pouring mold (4).

5. The preparation mold for a sandblasting tool according to claim 4, characterized in that: A limiting hole (11) is provided on the core plate (1), and a limiting protrusion (51) cooperating with the limiting hole (11) is provided on the inner side of the casting upper mold (5).

6. The preparation mold for a sandblasting tool according to claim 3, characterized in that: The exhaust pipe (6) is connected to the cavity between the lower casting mold (4) and the upper casting mold (5), and the pouring pipe (3) is connected to the cavity between the lower casting mold (4) and the upper casting mold (5).

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