Low-frequency centrifugal shaking tool

Abstract

The utility model discloses a low-frequency centrifugal shaking tool. The tool comprises a cylindrical mold for filling foaming liquid, a bearing table for placing the mold, a rotating power mechanism for driving the mold to axially rotate on the bearing table, and a swinging power mechanism for driving the mold to swing back and forth on the bearing table. According to the utility model, by controlling the axial rotation and the front-back shaking of the cylindrical mold, the simulation bone foaming liquid entering the mold can be ensured to be quickly and uniformly distributed at any part in the mold, and then the foaming liquid is foamed from the periphery of the mold to the center, so that a simulation bone model with rigidity gradient change from outside to inside is formed; the requirements of high surface hardness and high rigidity of the simulated bone model are met, the holding force of the bone nail on the simulated bone can be greatly increased, the repeated utilization rate of the simulated bone is increased, and the requirements of dry-type practical operation training are met. The tool is simple in structure, easy and convenient to operate and capable of meeting the requirement for more optimized production of the light-weight simulation bone model.

Description

TECHNICAL FIELD

[0001] The utility model relates to simulation bone model production equipment field, in particular to a low frequency centrifugal shaking frock. BACKGROUND

[0002] There are many simulation bone models on the market, also called as bone rod, which are mainly used for training teaching to simulate real bone in dry operation, so that the operator can complete cutting, drilling, installation of orthopedic instrument and other operations. But the existing simulation bone model mostly has the problems of insufficient surface cortical bone hardness, poor holding force of internal cancellous bone on bone nail, and poor repeatability in dry operation, which can only drill a hole or install a bone nail once, and the screw is easy to loosen during reinstallation.

[0003] The present application is developed on the basis of the above, a special production equipment for effectively improving the characteristics of simulation bone model, namely a low frequency centrifugal shaking frock, which can control the production of simulation bone model, significantly improve the surface hardness of simulation bone model, meet the requirement of stiffness gradient change from outside to inside of simulation bone model, and has simple structure and easy operation. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a low frequency centrifugal shaking frock, which can control the production steps of simulation bone model, significantly improve the surface hardness of simulation bone model, meet the requirement of stiffness gradient change from outside to inside of simulation bone model, and has simple structure and easy operation.

[0005] To solve the above technical problem, the utility model provides a low frequency centrifugal shaking frock, which comprises a cylindrical mold for pouring foaming liquid inside and a bearing table for placing the mold, a rotating power mechanism for driving the mold to rotate axially on the bearing table and a swing power mechanism for driving the mold to swing back and forth on the bearing table.

[0006] Further improvement, a plurality of auxiliary support wheels are arranged on the bearing table, the plurality of auxiliary support wheels are arranged in two rows, and the auxiliary support wheels are used for supporting the mold, at least one end of the bearing table is provided with a baffle plate, and the baffle plate is used for preventing the mold from being separated from the bearing table when the mold swings back and forth.

[0007] Further improvement, at least one driving wheel is arranged in the plurality of auxiliary support wheels, and the driving wheel is used as the rotating power mechanism to drive the mold to rotate axially.

[0008] Further improvement, a plurality of anti-skid protrusions are arranged on the outer periphery of the driving wheel.

[0009] Further improvement, the lower end of the baffle is fixedly connected with one end of the bearing table, the upper part of the baffle is provided with a limiting hole, the rotating power mechanism comprises a rotating control piece arranged in the limiting hole, the middle part of the rotating control piece is rotatably fixed in the limiting hole through a plurality of rollers, the side of the rotating control piece close to the bearing table is provided with an annular control plate, the outer side surface of the annular control plate is provided with a plurality of anti-skid convex points for abutting against the end part of the mold; the side of the rotating control piece away from the bearing table is provided with a driving unit, the driving unit drives the rotating control piece to rotate relative to the baffle, and then drives the mold abutting against the rotating control piece to rotate.

[0010] Further improvement, the driving unit is a manual handle.

[0011] Further improvement, the driving unit comprises a motor and a speed reducer connected with the motor, and a gear disc engaged with the speed reducer, the gear disc is arranged on the side of the rotating control piece away from the bearing table.

[0012] Further improvement, the swinging power mechanism comprises a front support and a rear support arranged at the lower part of the bearing table, the top end of the front support and the rear support are hingedly connected with the bottom of the bearing table, a telescopic mechanism is arranged on the front support and used for driving the front end of the bearing table and the mold on the bearing table to swing up and down, so that the mold can swing forward and backward.

[0013] Further improvement, the telescopic mechanism comprises a worm gear rack unit or a crank slider unit, and a driving handle for driving the worm or the crank to rotate; or, the front support adopts an electric or hydraulic telescopic rod structure.

[0014] Further improvement, the mold is bound by left and right buckles, and the pouring port is located at the center of the upper end of the mold, and the diameter of the pouring port is 3-6mm; the mold is prepared from a high polymer material or a metal material.

[0015] After adopting the design, the utility model at least has the following advantages:

[0016] 1. The low-frequency centrifugal shaking tool of the utility model can guarantee that the simulation bone foaming liquid entering the inside of the mold is quickly and evenly distributed in any part of the inside of the mold through the axial rotation and front and back shaking control of the cylindrical mold, and then makes the foaming liquid foam from the periphery of the mold to the center to form a simulation bone model with a rigidity gradient change from the outside to the inside, significantly improves the surface hardness of the simulation bone model, meets the rigidity requirement that the simulation bone model surface hardness is high and impact, knocking and the like will not leave marks, and makes the surface of the simulation bone model easy to drill and cut, and slightly has a certain stickiness effect, can more effectively simulate the performance of real bones. The bone nail holding force on the simulation bone model can be greatly increased, and the bone nail and the like can be drilled and installed multiple times, and the reusability is improved. The low-frequency centrifugal shaking tool has simple structure and convenient operation, and can meet the more optimized production of light simulation bone models.

[0017] 2. The front support member is provided with a telescopic mechanism to form a mold swing power mechanism, which can simply and conveniently realize the front and back shaking of the mold; and the mold is provided with a driving wheel or a rotary control member to form a mold rotation power mechanism, which can effectively realize the axial rotation of the mold. Through the cooperation of the front and back shaking and the axial rotation of the mold, the low-frequency centrifugal shaking of the mold is realized, the effect that the foaming liquid is quickly distributed on the inner wall of the mold in any position is realized, and the production and preparation of light simulation bones are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, the utility model will be further described in detail in combination with the drawings and specific embodiments.

[0019] Figure 1 Fig. 1 is a perspective view of the low-frequency centrifugal shaking tool embodiment 1 of the utility model.

[0020] Figure 2 Fig. 2 is a structure side view of the mold in the horizontal position of the low-frequency centrifugal shaking tool embodiment 1 of the utility model.

[0021] Figure 3 Fig. 3 is a structure side view of the mold in the inclined position of the low-frequency centrifugal shaking tool embodiment 1 of the utility model.

[0022] Figure 4 Fig. 4 is a perspective view of the baffle and the rotary control member in the low-frequency centrifugal shaking tool embodiment 1 of the utility model.

[0023] Figure 5 Fig. 5 is a structure side view of the baffle and the rotary control member in the low-frequency centrifugal shaking tool embodiment 1 of the utility model.

[0024] Figure 6 Fig. 6 is a perspective view of the rotary control member in the low-frequency centrifugal shaking tool embodiment 1 of the utility model.Figure 1 .

[0025] Figure 7 is the low-frequency centrifugal shaking tool embodiment 1 of the utility model rotates control piece's three-dimensional structure schematic diagram Figure 2 .

[0026] Figure 8 is the low-frequency centrifugal shaking tool embodiment 2 of the utility model three-dimensional structure schematic diagram.

[0027] Figure 9 is the low-frequency centrifugal shaking tool embodiment 2 in the structure schematic diagram of driving wheel. DETAILED DESCRIPTION

[0028] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are illustrated, it is to be understood that the present application can be carried out in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0029] Embodiment 1

[0030] Referring to the drawings, the low-frequency centrifugal shaking tool of the present embodiment is used for producing a lightweight simulation bone model. Figures 1 to 3

[0031] The low-frequency centrifugal shaking tool comprises a mold 1, a bearing table 2 for placing the mold 1, a rotating power mechanism for driving the mold 1 to rotate axially on the bearing table 2, and a swinging power mechanism for driving the mold to swing forward and backward on the bearing table 2.

[0032] The mold 1 is provided with a cylindrical structure on the outer periphery, and a simulation bone cavity to be produced is arranged inside. The mold 1 is bound by left and right fasteners, and a pouring port is located at the center of the upper end of the mold. The pouring port is generally a circular hole with a diameter of 3-6 mm, which is used for pouring a raw material mixture of the lightweight simulation bone model into the inside of the mold 1. After the raw material mixture foams in the mold, it is cooled and solidified to form the lightweight simulation bone model.

[0033] In the present embodiment, the mold 1 can be made of a high polymer material, such as silica gel material. It can also be made of a metal material.

[0034] ​The load-bearing table 2 is provided with a plurality of auxiliary support wheels 21, which are arranged in two rows and used to support the mold 1. In this embodiment, there are six auxiliary support wheels 21, three in each row, and the mold 1 is placed between the two rows of auxiliary support wheels 21 and is rotated under the drive of the rotating power mechanism.

[0035] The swing power mechanism in this embodiment includes a front support 3 and a rear support 4 arranged at the lower part of the load-bearing table 2. The top ends of the front support 3 and the rear support 4 are hinged to the bottom of the load-bearing table 2. The front support 3 includes one, which is arranged at the front center of the load-bearing table 2, and the rear support 4 includes two, which are arranged at the two sides of the rear of the load-bearing table 2. The bottom ends of the front support 3 and the rear support 4 are connected to the bottom plate 5.

[0036] The front support 3 adopts a telescopic mechanism, which drives the load-bearing table 2 and the mold 1 on it to swing up and down at the front end, achieving the purpose of the mold 1 shaking back and forth. The front end of the load-bearing table 2 is provided with a baffle 22 for preventing the mold 1 from shaking back and forth and falling off the load-bearing table 2.

[0037] In this embodiment, the telescopic mechanism adopts a turbine rack unit 31 of the existing structure and a drive handle 32 to drive its action. Then, by manually operating the drive handle 32, the up and down movement of the rack in the turbine rack unit 31 can be realized, which in turn drives the load-bearing table 2 and the mold 1 on it to swing up and down at the front end, achieving the purpose of the mold 1 shaking back and forth. Of course, the turbine rack unit 31 can also be replaced by the existing crank slider unit, which also achieves the purpose of driving the load-bearing table 2 and the mold 1 on it to swing up and down at the front end under the action of the drive handle 32.

[0038] In addition, the front support 3 can also adopt an electric or hydraulic telescopic rod structure to realize automatic control of telescopic action, which is more convenient to control and has high automation degree.

[0039] The telescopic range of the telescopic mechanism in this embodiment is -100~0mm. When it is at 0 position, the mold 1 is in a horizontal state, as shown in the accompanying Figure 2 When it is at -100mm, the mold 1 is in a tilted lowermost end state, as shown in the accompanying Figure 3 In actual production process, the telescopic control completes at least one reciprocation, which is generally controlled to be 1~20 times, preferably 10 times. It should be noted that the telescopic range of the telescopic mechanism is limited to avoid the foaming liquid in the mold 1 from flowing out of the pouring port, i.e. when the foaming liquid is about to flow out of the pouring port, the telescopic mechanism stops retracting and changes to an extending state, and this reciprocation avoids the foaming liquid from flowing out of the pouring port.

[0040] Referring to the accompanyingFigure 1 、 4 The lower end of the baffle 22 is fixedly connected with the front end of the bearing table 2, and the upper portion of the baffle 22 is provided with a limiting hole 221. The rotating power mechanism comprises a rotating control member 41 arranged in the limiting hole 221, and the middle portion of the rotating control member 41 is rotatably fixed in the limiting hole 221 through a plurality of rollers 42. The side of the rotating control member 41 close to the bearing table 2 is provided with an annular control plate 411, and the outer side of the annular control plate 411 is provided with a plurality of anti-skid convex points 412 for abutting against the end portion of the mold 1. The side of the rotating control member 41 away from the bearing table 2 is provided with a driving unit 413, which drives the rotating control member 41 to rotate relative to the baffle 22, and in turn drives the mold 1 abutting against the rotating control member 41 to rotate. It should be noted that the mold 1 and the rotating control member 41 only abut against each other but are not connected in the embodiment, because in the actual production process, the mold 1 needs to complete the front and back shaking and axial rotation in a very short time after being injected with foaming liquid, for example, the whole process needs to be completed within 15-60 seconds, so the installation of the mold 1 needs to be simple and fast. Moreover, the mold 1 needs to be quickly taken down after the foaming liquid is completely foamed, and then the mold 1 is cooled and shaped, so the mold 1 and the rotating control member 41 adopt the structure of only abutting against each other but not being connected.

[0041] The driving unit 413 is a manual handle in the embodiment, so when the mold 1 needs to be rotated, the manual handle is manually operated to drive the rotating control member 41 to rotate, and the mold 1 and the anti-skid convex points 412 on the rotating control member 41 abut against each other, so that the rotating drive of the mold 1 can be realized. Of course, the driving force of the rotating power mechanism is the strongest when the front support 3 is in the lowest position in the embodiment. Therefore, in the actual operation, the mold 1 can be first shaken forward and backward, and then the mold 1 is rotated when the front end of the mold 1 is in the lowest position, and then the mold 1 is lifted to the horizontal position after the rotation is completed.

[0042] Of course, the driving unit 413 can also be arranged in an electric structure in the embodiment, for example, comprising a motor, a speed reducer connected with the motor, and a gear disc engaged with the speed reducer, and the gear disc is arranged on the side of the rotating control member 41 away from the bearing table 2. Then the motor is started to drive the gear disc to rotate through the speed reducer, and in turn drive the rotating control member 41 to rotate, and finally drive the mold 1 to rotate. The electric structure adopts a low-frequency rotation mode in the embodiment, for example, 35 rotations per minute and a maximum torque of 22 kg·cm, which can automatically control the rotating control member 41 to realize low-frequency rotation, so as to meet the foaming effect of the polyurethane foaming material.

[0043] Embodiment 2

[0044] The difference between the embodiment and the above-mentioned embodiment 1 is that the rotating power mechanism is different. Figure 8

[0045] Referring to the accompanying drawings again, Figure 9 As shown in the drawings, the outer periphery of the driving wheel 211 is provided with several anti-skid protrusions 212 to increase the friction between the driving wheel and the outer wall of the mold, so that the rotation of the mold 1 is more effectively realized.

[0046] The other parts of the embodiment are the same as those of embodiment 1, and will not be described here again. The rotating control member 41 in embodiment 1 can be removed, and the mold 1 directly abuts against the baffle 22; the rotating control member 41 can also exist simultaneously with the driving wheel 211 to realize a double-rotating-power structure.

[0047] The lightweight simulation bone model prepared by the low-frequency centrifugal shaking tool has the characteristics of a stiffness gradient change from the outside to the inside, significantly improves the surface hardness of the simulation bone model, meets the stiffness requirements that the surface hardness of the simulation bone model is high and that marks such as impact and knocking cannot be left, increases the holding force of the bone nail on the simulation bone model, meets the multiple use requirements, and realizes more optimized use of the lightweight simulation bone model in dry operation.

[0048] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, and those skilled in the art can make some simple modifications, equivalent changes or modifications by using the disclosed technical content, which falls within the protection scope of the utility model.​

Claims

1. A low frequency centrifugal jolter characterized by, The application relates to a device for foaming and pouring liquid, which comprises a cylindrical mould for pouring liquid, a supporting table for placing the mould, a rotating power mechanism for driving the mould to rotate on the supporting table, and a swinging power mechanism for driving the mould to swing on the supporting table.

2. The low frequency centrifugal jolt ram tool of claim 1, wherein, The supporting table is provided with a plurality of auxiliary supporting wheels arranged in two rows for supporting the mould, and at least one end of the supporting table is provided with a baffle for preventing the mould from being separated from the supporting table when the mould swings.

3. The low frequency centrifugal jolt ram tool of claim 2, wherein, At least one of the auxiliary supporting wheels is a driving wheel for driving the mould to rotate.

4. The low frequency centrifugal jolt ram tool of claim 3, wherein, The outer periphery of the driving wheel is provided with a plurality of anti-skid protrusions.

5. The low frequency centrifugal jolt ram tool of claim 2, wherein, The lower end of the baffle is fixedly connected to one end of the supporting table, the upper part of the baffle is provided with a limiting hole, the rotating power mechanism comprises a rotating control member arranged in the limiting hole, the middle part of the rotating control member is rotatably fixed in the limiting hole through a plurality of rollers, the side of the rotating control member close to the supporting table is provided with an annular control plate, the outer side surface of the annular control plate is provided with a plurality of anti-skid protrusions for abutting against the end part of the mould; the side of the rotating control member away from the supporting table is provided with a driving unit, the driving unit drives the rotating control member to rotate relative to the baffle, and then drives the mould abutting against the rotating control member to rotate.

6. The low frequency centrifugal jolt ram tool of claim 5, wherein, The driving unit is a manual crank.

7. The low frequency centrifugal jolt ram tool of claim 5, wherein, The driving unit comprises a motor, a speed reducer connected to the motor, and a gear disc engaged with the speed reducer, and the gear disc is arranged on the side of the rotating control member away from the supporting table.

8. The low frequency centrifugal shaker of any one of claims 1 to 7, wherein, The swinging power mechanism comprises a front supporting member and a rear supporting member arranged at the lower part of the supporting table, the top ends of the front supporting member and the rear supporting member are hingedly connected to the bottom of the supporting table, the front supporting member adopts a telescopic mechanism for driving the front end of the supporting table and the mould on the supporting table to swing up and down, so that the mould swings.

9. The low frequency centrifugal jolt ram tool of claim 8, wherein, The telescopic mechanism comprises a turbine rack unit or a crank slider unit, and a driving handle for driving the turbine or the crank to rotate; or The telescopic mechanism adopts an electric or hydraulic telescopic rod structure.

10. The low frequency centrifugal jolt ram tool of claim 1, wherein, The mould is bound by left and right buckles, and the pouring port is arranged at the center of the upper end of the mould, and the diameter of the pouring port is 3-6 mm. The mould is made of high polymer material or metal material.

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