Injection mold for ultrasonic knife trigger of anastomat
By optimizing the exhaust position in the injection molding mold in the ultrasonic knife trigger, shortening the distance of the cooling system, and the sloping of the design of the design, the problems of the existing molds in the molding effect, cooling efficiency and release of molding have been solved. Quality molding products and more stable production processes.
Patent Information
- Application Number
- CN202421005425.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The existing stapler ultrasonic knife trigger molds have unreasonable exhaust position during injection molding, resulting in poor molding effect, easy deformity of the product, affecting appearance and quality. The cooling system is too far from the forming cavity, the cooling effect is poor, and the forming time is long. The lack of draft inclined surface during demoulding process can easily cause damage to the product.
A stapler ultrasonic scalpel trigger injection mold is designed, including a front template and a rear template. The contour of the molding cavity includes a hand-grip contour area and a thin-wall contour area. There are multiple exhaust grooves along the hand-grip contour area on the front mold cavity. , the number of exhaust slots in the thin-walled contour area is smaller than that in the hand-grip contour area. The distance between the cooling system and the molding cavity is shortened to 10mm-15mm. The hand grip contour area features a sloping draft bevel and upper and lower inserts between the molds to fill the space.
By optimizing the exhaust position, the molding effect is improved, the product deformation is reduced, and the appearance and quality of the product are improved. The shortened cooling system distance improves the cooling efficiency, saves molding time, and ensures the stability of product quality. The tilting slope of the slope simplifies the processed process and avoids product damage.
Smart Images
Figure CN222387506U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for an ultrasonic knife trigger of a stapler. Background Art
[0002] The ultrasonic knife consists of the upper and lower shells of the handle and the trigger. It is used to cut and stop bleeding of soft tissue in minimally invasive surgery. It is suitable for products that close 5mm blood vessels and can maximize the coagulation effect and cutting speed. Conventional trigger injection molding parts have large step differences, large deformation, obvious product shrinkage, affecting the appearance, different product deformation, poor batch consistency, poor effect after assembly, unsmooth movement, and a long molding cycle. Utility Model Content
[0003] The utility model aims to provide an injection mold for an ultrasonic knife trigger of a stapler, so as to solve at least one of the above problems existing in the prior art.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A stapler ultrasonic scalpel trigger injection mold comprises a front mold plate and a rear mold plate, wherein the front mold plate and the rear mold plate are respectively provided with a front mold cavity and a rear mold cavity, the shape of a molding cavity formed by the front mold cavity and the rear mold cavity is consistent with the shape of the stapler ultrasonic scalpel trigger, the contour of the molding cavity comprises a hand-grip contour area and a thin-wall contour area, a plurality of exhaust grooves are arranged on the front mold cavity at intervals along the contour of the hand-grip contour area, the exhaust grooves are connected to the exhaust channels, and the number of the exhaust grooves in the thin-wall contour area is less than the number of the exhaust grooves in the hand-grip contour area.
[0006] The existing stapler ultrasonic knife trigger molding mold does not set the exhaust position at the position where the container is trapped or easily deformed, which will result in poor molding effect during the injection molding process of the product, and poor molding quality at the parts of the product that are easily deformed, which directly affects the product appearance and product quality. In this technical solution, since the contour of the molding cavity includes a hand-gripping contour area and a thin-walled contour area, the hand-gripping contour area belongs to a part with high product quality requirements during the use of the product. Therefore, it is necessary to ensure the molding effect of the hand-gripping contour area. A plurality of exhaust grooves are provided on the front mold cavity along the contour of the hand-gripping contour area. The exhaust grooves are connected to the exhaust channel, which can ensure the product molding quality of the hand-gripping contour area. The material molding thickness of the thin-walled contour area is not as good as that of the hand-gripping contour area, and this part is not easy to deform. Therefore, the number of exhaust grooves in the thin-walled contour area is less than the number of exhaust grooves in the hand-gripping contour area. In summary, this technical solution optimizes the design of the exhaust position according to the specific contour structure of the stapler ultrasonic knife trigger, the shape of the molded product and the specific situation of easy deformation during use, thereby avoiding the problem of poor product molding effect caused by trapped air during injection molding.
[0007] Furthermore, the cooling system in the existing stapler ultrasonic knife trigger molding mold is far away from the molding cavity, generally about 30mm, with poor cooling effect, low efficiency, and slow molding time. In this technical solution, the front template and the rear template are both provided with a cooling system, and the distance A from the cooling system to the molding cavity is 10mm-15mm. The distance between the cooling system and the molding cavity is greatly shortened, the product is cooled evenly, the cooling efficiency is high, the molding time is saved, the product quality stability is good, and the assembly is smooth.
[0008] Furthermore, the distance A from the cooling system to the molding cavity is 13.5 mm.
[0009] Furthermore, the existing stapler ultrasonic knife trigger forming mold has no demoulding bevel in the hand-grip contour area, which makes demoulding difficult and easily causes damage to the product during the demoulding process. In the present technical solution, in order to facilitate demoulding and avoid damage to the product during the demoulding process, the hand-grip contour area is provided with an inclined demoulding bevel.
[0010] Furthermore, in order to be able to fill the space in the molding cavity according to the specific structure of the product so that a corresponding internal space is formed on the product, an upper insert and a lower insert are provided between the front template and the rear template. The upper insert extends downward into the molding cavity, and the lower insert extends upward into the molding cavity. Specifically with respect to the shape of the ultrasonic scalpel trigger of the stapler, the lower insert is used to form the thin-walled area of the ultrasonic scalpel trigger of the stapler, and the upper insert is used to form the U-shaped groove area of the ultrasonic scalpel trigger of the stapler.
[0011] Furthermore, in order to facilitate the installation of the lower insert, a base is also included, and the base is located at the lower end of the front template and the rear template, and the lower insert is installed on the base.
[0012] Furthermore, in order to facilitate the demoulding of the product, a plurality of ejector columns are vertically slidably connected to the lower insert, and the driving end of the ejector column is connected to a driving plate. The driving plate is driven by a lifting mechanism, and the lifting mechanism can drive the ejector column to move upward to achieve molding and separation of the product from the lower insert.
[0013] Furthermore, in order to better form the through holes on the product, through hole forming columns are respectively provided on the front template and the rear template, and the ends of the through hole forming columns are located at the through hole forming positions in the forming cavity.
[0014] Furthermore, in order to improve the molding efficiency of the products, a set of molds can mold multiple products at the same time, and the front mold plate and the rear mold plate are symmetrically provided with two front mold cavities and a rear mold cavity, respectively, and injection channels are symmetrically provided between the two front mold cavities and between the two rear mold cavities.
[0015] Furthermore, in order to better ensure the positioning of the front template and the rear template, positioning grooves and positioning protrusions are respectively provided at the four corners of the front template and the rear template.
[0016] The beneficial effects of the utility model are as follows: the existing stapler ultrasonic knife trigger molding mold does not set the exhaust position at the position where the container is trapped or easily deformed, which will result in poor molding effect during the injection molding process of the product, and poor molding quality of the parts of the product that are easily deformed, which directly affects the product appearance and product quality. In this technical solution, since the contour of the molding cavity includes a hand-grip contour area and a thin-wall contour area, the hand-grip contour area belongs to a part with high product quality requirements during the use of the product, therefore, it is necessary to ensure the molding effect of the hand-grip contour area, and the front mold cavity is provided with a plurality of exhaust grooves along the contour of the hand-grip contour area at intervals, and the exhaust grooves are connected to the exhaust channel, which can ensure the product molding quality of the hand-grip contour area, and the material molding thickness of the thin-wall contour area is not as good as that of the hand-grip contour area, and this part is not easy to deform, therefore, the number of exhaust grooves in the thin-wall contour area is less than the number of exhaust grooves in the hand-grip contour area. In summary, in this technical solution, according to the specific contour structure of the stapler ultrasonic knife trigger, the shape of the molded product and the specific situation of easy deformation during use, the exhaust position is optimized and designed, avoiding the problem of poor product molding effect caused by trapped air during injection molding. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of some components on one side of the front template of the utility model from a first viewing angle;
[0018] Figure 2 It is a structural schematic diagram of some components on one side of the front template of the utility model from a second viewing angle;
[0019] Figure 3 It is a structural schematic diagram of the front template in the utility model;
[0020] Figure 4 It is a perspective structural diagram of the front template in the utility model;
[0021] Figure 5 It is a front view structural schematic diagram of the front template in the utility model;
[0022] Figure 6 It is a structural schematic diagram of some components on one side of the rear template of the utility model from a first perspective;
[0023] Figure 7 It is a structural schematic diagram of the rear template in the utility model;
[0024] Figure 8 It is a front view structural diagram of some components on one side of the rear template of the utility model;
[0025] Fig. 9 It is a structural schematic diagram of the base and lower insert parts of the utility model;
[0026] Fig.10It is a cross-sectional structural schematic diagram of the base and lower insert part components in the utility model;
[0027] Fig.11 It is a structural schematic diagram of the lower insert part assembly of the utility model;
[0028] Fig.12 It is a structural schematic diagram of the utility model in the mold closing state.
[0029] In the figure: front template 1; rear template 2; front mold cavity 3; rear mold cavity 4; stapler ultrasonic knife trigger 5; hand grip contour area 6; thin-wall contour area 7; exhaust groove 8; cooling system 9; draft bevel 10; upper insert 11; lower insert 12; U-shaped groove area 13; base 14; top column 15; through-hole molding column 16; injection channel 17; positioning protrusion 18; positioning groove 19; exhaust channel 20. DETAILED DESCRIPTION
[0030] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.
[0031] Embodiment 1:
[0032] like Figure 1-Figure 12 As shown, the present embodiment provides an injection mold for an ultrasonic scalpel trigger of a stapler, comprising a front template 1 and a rear template 2, wherein a front mold cavity 3 and a rear mold cavity 4 are respectively provided on the front template 1 and the rear template 2, the outer shape of a molding cavity formed by the front mold cavity 3 and the rear mold cavity 4 is consistent with the outer shape of an ultrasonic scalpel trigger 5 of the stapler, the contour of the molding cavity comprises a hand-grip contour area 6 and a thin-wall contour area 7, a plurality of exhaust grooves 8 are provided on the front mold cavity 3 at intervals along the contour of the hand-grip contour area 6, the exhaust grooves 8 are connected to the exhaust channel 20, and the number of the exhaust grooves 8 in the thin-wall contour area 7 is less than the number of the exhaust grooves 8 in the hand-grip contour area 6.
[0033] The existing stapler ultrasonic knife trigger 5 molding mold does not set the exhaust position at the position where the container is trapped or easily deformed, which will result in poor molding effect during the injection molding process of the product, and poor molding quality at the parts of the product that are easily deformed, which directly affects the product appearance and product quality. In this technical solution, since the contour of the molding cavity includes a hand-gripping contour area 6 and a thin-walled contour area 7, the hand-gripping contour area 6 is a part that has high requirements for product quality during the use of the product. Therefore, the molding effect of the hand-gripping contour area 6 must be guaranteed. A plurality of exhaust grooves 8 are provided at intervals along the contour of the hand-gripping contour area 6 on the front mold cavity 3. The exhaust grooves 8 are connected to the exhaust channel 20, which can ensure the product molding quality of the hand-gripping contour area 6. The material molding thickness of the thin-walled contour area 7 is less than that of the hand-gripping contour area 6, and this part is not easy to deform. Therefore, the number of exhaust grooves 8 in the thin-walled contour area 7 is less than the number of exhaust grooves 8 in the hand-gripping contour area 6. In summary, this technical solution optimizes the design of the exhaust position according to the specific contour structure of the stapler ultrasonic knife trigger 5, the shape of the molded product and the specific situation that it is easy to deform during use, thereby avoiding the problem of poor product molding effect caused by trapped air during the injection molding process.
[0034] Embodiment 2:
[0035] This embodiment is optimized based on the above-mentioned embodiment 1.
[0036] The cooling system 9 in the existing stapler ultrasonic knife trigger molding mold is far away from the molding cavity, generally about 30mm, with poor cooling effect, low efficiency, and slow molding time. In this technical solution, a cooling system 9 is provided on the front template 1 and the rear template 2, and the distance A from the cooling system 9 to the molding cavity is 10mm-15mm. The distance between the cooling system 9 and the molding cavity is greatly shortened, the product is cooled evenly, the cooling efficiency is high, the molding time is saved, the product quality stability is good, and the assembly is smooth. Preferably, the distance A from the cooling system 9 to the molding cavity is 13.5mm.
[0037] Embodiment 3:
[0038] This embodiment is optimized based on the above-mentioned embodiment 1.
[0039] The existing stapler ultrasonic knife trigger forming mold has no draft bevel 10 in the gripping contour area 6, which makes demolding difficult and easily causes damage to the product during the demolding process. In the present technical solution, in order to facilitate demolding and avoid damage to the product during the demolding process, the gripping contour area 6 is provided with an inclined draft bevel 10.
[0040] Embodiment 4:
[0041] This embodiment is optimized based on the above-mentioned embodiment 1.
[0042] In order to fill the space in the molding cavity according to the specific structure of the product so that a corresponding internal space is formed on the product, an upper insert 11 and a lower insert 12 are provided between the front template 1 and the rear template 2. The upper insert 11 extends downward into the molding cavity, and the lower insert 12 extends upward into the molding cavity. Specifically with respect to the shape of the stapler ultrasonic scalpel trigger 5, the lower insert 12 is used to mold the thin-walled area of the stapler ultrasonic scalpel trigger 5, and the upper insert 11 is used to mold the U-shaped groove area 13 of the stapler ultrasonic scalpel trigger 5.
[0043] Embodiment 5:
[0044] This embodiment is optimized based on the above-mentioned embodiment 4.
[0045] In order to facilitate the installation of the lower insert 12 , a base 14 is also included. The base 14 is located at the lower ends of the front template 1 and the rear template 2 , and the lower insert 12 is installed on the base 14 .
[0046] Embodiment 6:
[0047] This embodiment is optimized based on the above-mentioned embodiment 4.
[0048] In order to facilitate the demoulding of the product, a plurality of ejector columns 15 are vertically slidably connected to the lower insert 12. The driving end of the ejector column 15 is connected to a driving plate, which is driven by a lifting mechanism. The lifting mechanism can drive the ejector column 15 to move upward to achieve molding and the separation of the product from the lower insert 12.
[0049] Embodiment 7:
[0050] This embodiment is optimized based on the above-mentioned embodiment 1.
[0051] In order to better form the through holes on the product, through hole forming columns 16 are respectively provided on the front template 1 and the rear template 2, and the ends of the through hole forming columns 16 are located at the through hole forming positions in the forming cavity.
[0052] Embodiment 8:
[0053] This embodiment is optimized based on the above-mentioned embodiment 1.
[0054] In order to improve the molding efficiency of the products, a set of molds is used to mold multiple products at the same time. Two front mold cavities 3 and rear mold cavities 4 are symmetrically arranged on the front mold plate 1 and the rear mold plate 2, and injection channels 17 are symmetrically arranged between the two front mold cavities 3 and between the two rear mold cavities 4.
[0055] Embodiment 9:
[0056] This embodiment is optimized based on the above-mentioned embodiment 1.
[0057] In order to better ensure the positioning of the front template 1 and the rear template 2, positioning grooves 19 and positioning protrusions 18 are respectively provided at the four corners of the front template 1 and the rear template 2.
[0058] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. An injection mold for an ultrasonic scalpel trigger of a stapler, characterized in that: It comprises a front template and a rear template, wherein a front mold cavity and a rear mold cavity are respectively provided on the front template and the rear mold cavity, the shape of the molding cavity formed by the combination of the front mold cavity and the rear mold cavity is consistent with the shape of the ultrasonic knife trigger of the stapler, the contour of the molding cavity comprises a hand-grip contour area and a thin-wall contour area, a plurality of exhaust grooves are arranged on the front mold cavity at intervals along the contour of the hand-grip contour area, the exhaust grooves are connected to the exhaust channel, and the number of the exhaust grooves in the thin-wall contour area is less than the number of the exhaust grooves in the hand-grip contour area.
2. The injection mold for the ultrasonic scalpel trigger of the stapler according to claim 1, characterized in that: The front template and the rear template are both provided with cooling systems, and the distance A between the cooling system and the molding cavity is 10mm-15mm.
3. The ultrasonic scalpel trigger injection mold of the stapler according to claim 2, characterized in that: The distance A from the cooling system to the molding cavity is 13.5 mm.
4. The injection mold for the ultrasonic scalpel trigger of a stapler according to claim 1, characterized in that: The grip contour area is provided with an inclined draft chamfer.
5. The injection mold for the ultrasonic scalpel trigger of a stapler according to claim 1, characterized in that: An upper insert and a lower insert are provided between the front template and the rear template. The upper insert extends downward into the molding cavity, and the lower insert extends upward into the molding cavity.
6. The injection mold for the ultrasonic scalpel trigger of the stapler according to claim 5, characterized in that: It also includes a base, which is located at the lower ends of the front template and the rear template, and the lower insert is installed on the base.
7. The injection mold for the ultrasonic scalpel trigger of the stapler according to claim 5, characterized in that: A plurality of top columns are vertically and slidably connected to the lower insert, and a driving plate is connected to the driving end of the top column, and the driving plate is driven by a jacking mechanism.
8. The injection mold for the ultrasonic scalpel trigger of a stapler according to claim 1, characterized in that: The front template and the rear template are respectively provided with through-hole forming columns, and the ends of the through-hole forming columns are located at through-hole forming positions in the forming cavity.
9. The ultrasonic scalpel trigger injection mold of the stapler according to claim 1, characterized in that: Two front mold cavities and a rear mold cavity are symmetrically arranged on the front mold plate and the rear mold plate respectively, and injection channels are symmetrically arranged between the two front mold cavities and between the two rear mold cavities.
10. The ultrasonic scalpel trigger injection mold of the stapler according to claim 1, characterized in that: The four corners of the front template and the rear template are respectively provided with positioning grooves and positioning protrusions.