Positioning handle injection mold

Abstract

The utility model relates to the technical field of molds, and discloses a positioning handle injection mold, which comprises a front mold core plate and a rear mold core plate, the front mold core plate and the rear mold core plate are respectively and fixedly arranged on a front mold plate and a rear mold plate, the front mold core plate is provided with a front mold core handle groove and a front mold core needle head groove, and the rear mold core plate is provided with a rear mold core needle head groove. The front mold core plate is provided with a front mold core handle groove and a front mold core needle head groove, the rear mold core plate is provided with a rear mold core handle groove and a rear mold core needle head groove, the appearance of a forming cavity formed after the front mold core handle groove and the rear mold core handle groove are combined is consistent with the appearance of a positioning handle, and a needle head channel formed after the front mold core needle head groove and the rear mold core needle head groove are combined is used for limiting a needle head. Four positioning holes for mounting metal screws are formed in the front mold core handle groove, and the positions of the positioning holes are consistent with the mounting positions of the metal screws on the positioning handle; the positioning handle injection mold solves the problems that an existing metal positioning handle is high in production cost and low in efficiency, and the product quality is difficult to guarantee.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold for a positioning handle. Background Art

[0002] The positioning handle is used in orthopedic knee replacement surgery using surgical robots. The surgical robot navigation system and the robotic arm work together, and the positioning handle is installed on the robotic arm. It can quickly and accurately locate the osteotomy area based on the patient's osteotomy position, angle, and thickness, identify problems with poor prosthesis positioning, or avoid manual measurement errors, thereby improving surgical accuracy, surgical level, and treatment efficiency.

[0003] The existing positioning handle includes a metal handle, four metal screws and a needle screwed on the metal handle, wherein the metal handle, metal screws and needle are all separately processed metal parts. After processing, the metal parts need to be deburred, sandblasted and painted. The metal handle also needs to be tapped to facilitate the installation of the screws and needles. The overall assembly is time-consuming and labor-intensive, and the metal screws are all manually screwed. The position consistency after assembly is poor, the spacing size deviation is large, the product processing fee is very high, the product defective rate is high, and the cost is high. In addition, since the existing positioning handles are all metal parts, the processing time is long, the delivery time is slow, and the quality stability requires full inspection. In addition, the positioning of the all-metal handle has the disadvantage of unstable signal during surgery. Utility Model Content

[0004] The utility model aims to provide a positioning handle injection mold to solve at least one of the above problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A positioning handle injection mold comprises a front mold plate and a rear mold plate, wherein the front mold plate and the rear mold plate are fixedly mounted on the front mold plate and the rear mold plate respectively, wherein a front mold handle groove and a front mold needle groove are provided on the front mold plate, and a rear mold handle groove and a rear mold needle groove are provided on the rear mold plate, wherein the outer shape of the molding cavity formed by the combination of the front mold handle groove and the rear mold handle groove is consistent with the outer shape of the positioning handle, and the needle channel formed by the combination of the front mold needle groove and the rear mold needle groove is used to limit the needle, and four positioning holes for installing metal screws are provided on the front mold handle groove, and the positions of the positioning holes are consistent with the installation positions of the metal screws on the positioning handle.

[0007] The technical solution adopts mold injection molding to form an integral positioning handle. Since four positioning holes for installing metal screws are provided on the groove of the front mold handle, the positions of the positioning holes are consistent with the installation positions of the metal screws on the positioning handle, and the positioning holes are convenient for realizing the positioning and installation of the metal screws, thereby ensuring the position stability of the metal screws during the injection molding process; since the needle channel formed by the combination of the front mold needle groove and the rear mold needle groove realizes the limitation of the needle, the stability of the needle position during the injection molding process can be ensured, since the shape of the molding cavity formed by the combination of the front mold handle groove and the rear mold handle groove is consistent with the shape of the positioning handle, after the metal screw and the needle are installed, during the mold closing injection molding process, the injection plastic enters the molding cavity, and the positioning handle of the plastic material can be integrally molded. During the entire molding process, there is no need to process metal parts of the handle, and there is no need to tap the handle. At the same time, since the positions of the metal screws and the needles are stable, the angle, horizontality and other deviations that occur when manually screwing the metal screws during manual assembly are avoided, which can better improve product quality, reduce production costs and increase production efficiency, and quickly deliver products in batches. In addition, plastic parts are lightweight, about 4 times lighter than metal parts. One-piece molding reduces the steps of assembling metal screws and needles, and the quality stability and consistency of injection molded parts fully meet customer requirements. The positioning handle made of plastic is more stable when used in surgical robots, and the signal light transmission is better than the existing metal handles. Injection molded parts do not require sandblasting or painting.

[0008] Furthermore, a hanging column is provided between the front mold handle groove and the front mold needle groove. The end of the hanging column extending out of the front mold handle groove is used to hang with the end of the needle close to the handle part, which can limit the axial displacement of the needle. A support column for tightening the metal screw is provided at the position corresponding to the positioning hole on the rear mold handle groove, which can better realize the positioning of the metal screw.

[0009] Furthermore, in order to better realize the demoulding of the product and avoid the collision between the push rod and the plastic parts to damage the appearance of the product, a metal screw push rod and a needle push rod are arranged on the front mold plate. The metal screw push rod and the needle push rod are both slidably matched with the front mold plate. The metal screw push rod is coaxially arranged with the corresponding positioning hole. The driving ends of the metal screw push rod and the needle push rod are connected to a driving plate, and the driving plate is driven by a lifting mechanism.

[0010] Furthermore, two needle push rods are arranged at intervals along the needle groove of the front mold, which can better realize the ejection of the needle. The front mold plate is respectively fixedly installed with a first insert and a second insert. The first insert is arranged at a position between the front mold handle groove and the front mold needle groove. The second insert is fixed at the front mold needle groove and extends out of the end of the front mold plate to form a U-shaped groove. The hanging column is fixed in the first insert, and the two needle push rods are respectively slidably matched with the first insert and the second insert. The first insert and the second insert can better realize the installation of the needle push rod and the hanging column.

[0011] Furthermore, in order to improve the accuracy of installation of the metal screw, a horizontal positioning platform matching the positioning platform on the metal screw is provided on the positioning hole, and the horizontal positioning platform is symmetrically arranged on both sides of the positioning hole.

[0012] Furthermore, in order to ensure the accuracy of positioning the front mold plate and the rear mold plate, positioning protrusions and positioning grooves are respectively provided at the four corners of the front mold plate and the rear mold plate.

[0013] Furthermore, in order to facilitate the fixed installation of the front mold plate and the rear mold plate, the front mold plate is provided with a mold installation groove, the front mold plate is fixedly installed in the mold installation groove, and radial extension edges are symmetrically provided on both sides of the rear mold plate, and the radial extension edges are fixedly installed with the rear mold plate by bolts.

[0014] Furthermore, in order to better achieve docking with the U-shaped groove, a docking groove is provided on the needle groove of the rear mold core, and the upper end of the U-shaped groove extends into the docking groove.

[0015] Furthermore, in order to facilitate the installation of the anti-pillar, a plurality of installation grooves are provided on the rear mold plate, and anti-pillar mounting seats are fixedly installed in the installation grooves by bolts respectively, and an anti-pillar extension channel and an anti-pillar limiting groove connected to the installation grooves are provided on the rear mold plate, and the limiting plate at the end of the anti-pillar is located in the anti-pillar limiting groove, and the anti-pillar is located in the extension channel and the free end of the anti-pillar extends out of the groove wall of the rear mold handle groove or the rear mold needle groove.

[0016] Furthermore, in order to facilitate the molding of the corresponding product model or corporate logo on the positioning handle by replacing different inserts, a logo insert is provided in the groove of the front mold handle, and a concave and convex logo is provided on the end face of the logo insert.

[0017] The beneficial effects of the utility model are as follows: the technical solution adopts a mold injection integrally formed positioning handle, because the groove of the front mold handle is provided with four positioning holes for installing metal screws, the positions of the positioning holes are consistent with the installation positions of the metal screws on the positioning handle, and the positioning holes are convenient for realizing the positioning and installation of the metal screws, thereby ensuring the position stability of the metal screws during the injection molding process; because the needle channel formed by the combination of the front mold needle groove and the rear mold needle groove realizes the limitation of the needle, it can ensure the stability of the needle position during the injection molding process, and because the groove of the front mold handle and the groove of the rear mold handle are The shape of the combined molding cavity is consistent with the shape of the positioning handle. After the metal screws and needles are installed, during the mold closing and injection molding process, the injection plastic enters the molding cavity, and the plastic positioning handle can be integrally molded. During the entire molding process, there is no need to process the metal parts of the handle, nor is there any need to tap the handle. At the same time, since the position of the metal screws and needles is stable, the angle, horizontality and other deviations that occur when manually screwing the metal screws during manual assembly are avoided, which can better improve product quality, reduce production costs and increase production efficiency, and enable rapid batch delivery of products. In addition, plastic parts are light in density, about 4 times lighter than metal parts. Integral molding reduces the steps of assembling metal screws and needles, and the quality stability and consistency of the product injection molded parts fully meet customer requirements. The plastic positioning handle is more stable when used in surgical robots, and the signal light transmittance is better than the existing metal handles. The injection molded parts do not require sandblasting or painting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of the front mold plate of the utility model from the first perspective;

[0019] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 3 This is a structural schematic diagram of the front mold core plate of the utility model from a second viewing angle;

[0021] Figure 4 It is a structural schematic diagram of the front mold plate of the utility model from a third viewing angle;

[0022] Figure 5 It is a structural schematic diagram of the front mold plate of the utility model from a fourth viewing angle;

[0023] Figure 6 for Figure 5 A schematic diagram of the local enlarged structure at B in the middle;

[0024] Figure 7 It is a schematic diagram of the structure of the utility model;

[0025] Figure 8This is a structural schematic diagram of the rear mold core plate of the utility model from the first perspective;

[0026] Fig. 9 This is a structural schematic diagram of the rear mold core plate of the utility model from a second viewing angle;

[0027] Fig.10 It is a structural schematic diagram of the installation state of the front mold core plate and the front mold plate in the utility model;

[0028] Fig.11 It is a structural schematic diagram of the mold forming product in the utility model.

[0029] In the figure: front mold plate 1; rear mold plate 2; front mold plate 3; front mold handle groove 5; front mold needle groove 6; rear mold handle groove 8; rear mold needle groove 9; positioning handle 10; needle 11; metal screw 12; positioning hole 13; horizontal positioning platform 13.1; hanging column 14; support column 15; metal screw push rod 16; needle push rod 17; drive plate 18; first insert 19; second insert 20; U-shaped groove 20.1; positioning protrusion 21; positioning groove 22; radial extension edge 23; docking groove 25; mounting groove 26; support column mounting seat 27; support column extension channel 28; support column limit groove 29; logo insert 30; mold core mounting groove 31. 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 11As shown, the present embodiment provides a positioning handle injection mold, comprising a front mold plate 1 and a rear mold plate 2, the front mold plate 1 and the rear mold plate 2 are fixedly mounted on the front mold plate 3 and the rear mold plate respectively, the front mold plate 1 is provided with a front mold handle groove 5 and a front mold needle groove 6, the rear mold plate 2 is provided with a rear mold handle groove 8 and a rear mold needle groove 9, the shape of the molding cavity formed by the combination of the front mold handle groove 5 and the rear mold handle groove 8 is consistent with the shape of the positioning handle 10, the needle channel formed by the combination of the front mold needle groove 6 and the rear mold needle groove 9 realizes the limitation of the needle 11, the front mold handle groove 5 is provided with four positioning holes 13 for installing metal screws 12, and the position of the positioning hole 13 is consistent with the installation position of the metal screw 12 on the positioning handle 10.

[0033] The present technical solution adopts a mold injection integrally formed positioning handle 10. Since four positioning holes 13 for installing metal screws 12 are provided on the front mold handle groove 5, the position of the positioning holes 13 is consistent with the installation position of the metal screws 12 on the positioning handle 10, and the positioning holes 13 are convenient for realizing the positioning and installation of the metal screws 12, thereby ensuring the position stability of the metal screws 12 during the injection molding process; since the needle channel formed by the combination of the front mold needle groove 6 and the rear mold needle groove 9 realizes the limitation of the needle 11, it can ensure the stability of the position of the needle 11 during the injection molding process, and since the front mold handle groove 5 and the rear mold handle groove The shape of the combined molding cavity is consistent with the shape of the positioning handle 10. After the metal screw 12 and the needle 11 are installed, during the mold injection molding process, the injection plastic enters the molding cavity, and the positioning handle 10 made of plastic material can be integrally molded. During the entire molding process, there is no need to process the metal parts of the handle, and there is no need to tap the handle. At the same time, since the positions of the metal screw 12 and the needle 11 are stable, the angle, horizontality and other deviations that occur when the metal screw 12 is manually screwed during manual assembly are avoided, which can better improve product quality, reduce production costs and increase production efficiency, and quickly deliver products in batches. In addition, the density of plastic parts is light, about 4 times lighter than that of metal parts. Integral molding reduces the steps of assembling the metal screw 12 and the needle 11, and the quality stability and consistency of the product injection molded parts fully meet customer requirements. The positioning handle 10 made of plastic material is more stable in use in surgical robots, and the signal light transmittance is better than that of existing metal handles. The injection molded parts do not require sandblasting or painting.

[0034] Embodiment 2:

[0035] This embodiment is optimized based on the above-mentioned embodiment 1.

[0036] A hanging column 14 is provided between the front mold handle groove 5 and the front mold needle groove 6. The hanging column 14 extends out of the end of the front mold handle groove 5 and is used to hang with the end of the needle 11 close to the handle part, which can limit the axial displacement of the needle 11. A support column 15 for tightening the metal screw 12 is provided at a position corresponding to the positioning hole 13 on the rear mold handle groove 8, which can better realize the positioning of the metal screw 12.

[0037] Embodiment 3:

[0038] This embodiment is optimized based on the above-mentioned embodiment 2.

[0039] In order to better realize the demoulding of the product and avoid the collision between the push rod and the plastic parts to damage the appearance of the product, a metal screw push rod 16 and a needle push rod 17 are provided on the front mold plate 1. The metal screw push rod 16 and the needle push rod 17 are both slidably matched with the front mold plate 1. The metal screw push rod 16 is coaxially arranged with the corresponding positioning hole 13. The driving ends of the metal screw push rod 16 and the needle push rod 17 are connected to a driving plate 18, and the driving plate 18 is driven by a lifting mechanism.

[0040] Embodiment 4:

[0041] This embodiment is optimized based on the above-mentioned embodiment 3.

[0042] Two needle push rods 17 are arranged at intervals along the front mold needle groove 6, which can better realize the ejection of the needle 11. The first insert 19 and the second insert 20 are fixedly installed on the front mold plate 1 respectively. The first insert 19 is arranged at a position between the front mold handle groove 5 and the front mold needle groove 6. The second insert 20 is fixed at the front mold needle groove 6 and extends out of the end of the front mold plate 1 to form a U-shaped groove 20.1. The hanging column 14 is fixed in the first insert 19, and the two needle push rods 17 are slidably matched with the first insert 19 and the second insert 20 respectively. The first insert 19 and the second insert 20 can better realize the installation of the needle push rod 17 and the hanging column 14.

[0043] Embodiment 5:

[0044] This embodiment is optimized based on the above-mentioned embodiment 1.

[0045] In order to improve the installation accuracy of the metal screw 12 , a horizontal positioning platform 13 . 1 matching the positioning platform on the metal screw 12 is provided on the positioning hole 13 , and the horizontal positioning platform 13 . 1 is symmetrically arranged on both sides of the positioning hole 13 .

[0046] Embodiment 6:

[0047] This embodiment is optimized based on the above-mentioned embodiment 1.

[0048] In order to ensure the accuracy of positioning of the front mold plate 1 and the rear mold plate 2, four corners of the front mold plate 1 and the rear mold plate 2 are respectively provided with positioning protrusions 21 and positioning grooves 22.

[0049] Embodiment 7:

[0050] This embodiment is optimized based on the above-mentioned embodiment 4.

[0051] In order to facilitate the fixed installation of the front mold plate 1 and the rear mold plate 2, a mold mounting groove 31 is provided on the front mold plate 3, and the front mold plate 1 is fixedly installed in the mold mounting groove 31. The rear mold plate 2 is symmetrically provided with radial extension edges 23 on both sides, and the radial extension edges 23 are fixedly installed with the rear mold plate by bolts.

[0052] Embodiment 8:

[0053] This embodiment is optimized based on the above-mentioned embodiment 4.

[0054] In order to better achieve docking with the U-shaped groove 20 . 1 , a docking groove 25 is provided on the rear mold core needle groove 9 , and the upper end of the U-shaped groove 20 . 1 extends into the docking groove 25 .

[0055] Embodiment 9:

[0056] This embodiment is optimized based on the above-mentioned embodiment 2.

[0057] In order to facilitate the installation of the anti-pillar 15, a plurality of installation grooves 26 are provided on the rear mold plate 2, and anti-pillar mounting seats 27 are fixedly installed in the installation grooves 26 by bolts. The rear mold plate 2 is provided with an anti-pillar extension channel 28 and an anti-pillar limiting groove 29 which are connected to the installation grooves 26. The limiting plate at the end of the anti-pillar 15 is located in the anti-pillar limiting groove 29, and the anti-pillar 15 is located in the extension channel and the free end of the anti-pillar 15 extends out of the groove wall of the rear mold handle groove 8 or the rear mold needle groove 9.

[0058] To facilitate the positioning and installation of the hanging column 14, the first insert 19 is provided with a hanging column extension channel and a hanging column limit groove which are connected to the mold core mounting groove 31. The limit plate at the end of the hanging column 14 is located in the hanging column limit groove. The hanging column 14 is located in the hanging column extension channel and the free end of the hanging column 14 extends out of the U-shaped groove 20.1 groove wall of the first insert 19. The installation structure of the hanging column 14 is the same as the installation structure of the support column 15.

[0059] Embodiment 10:

[0060] This embodiment is optimized based on the above-mentioned embodiment 1.

[0061] In order to facilitate the molding of the corresponding product model or corporate logo on the positioning handle by replacing different inserts, a logo insert 30 is provided in the front mold handle groove 5, and the end surface of the logo insert 30 is provided with a concave and convex logo.

[0062] The cycle of the mold molding product of the positioning handle 10 is 90 seconds per piece, and the products can be delivered in batches quickly. During processing, four metal screws 12 are placed in the corresponding four positioning holes 13, and the needle 11 is placed in the front mold needle groove 6, so that the connecting end of the needle 11 is hung on the hanging column 14. The hanging column 14 can well limit the axial movement of the needle 11 in the front mold needle groove 6. The needle channel formed by the combination of the front mold needle groove 6 and the rear mold needle groove 9 can realize the limitation of the needle 11. After that, in the mold closing state, since the position corresponding to the positioning hole 13 on the rear mold handle groove 8 is provided with a support column 15 for pressing the metal screw, the stability of the position of the metal screw 12 in the injection molding state can be ensured. After the molding is completed, the connecting ends of the four metal screws 12 and the needle 11 are stably embedded in the positioning handle 10.

[0063] 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. A positioning handle injection mold, characterized in that: It includes a front mold plate and a rear mold plate, which are fixedly mounted on the front mold plate and the rear mold plate respectively, and the front mold plate is provided with a front mold handle groove and a front mold needle groove, and the rear mold plate is provided with a rear mold handle groove and a rear mold needle groove. The shape of the molding cavity formed by the combination of the front mold handle groove and the rear mold handle groove is consistent with the shape of the positioning handle, and the needle channel formed by the combination of the front mold needle groove and the rear mold needle groove realizes the limitation of the needle, and the front mold handle groove is provided with four positioning holes for installing metal screws, and the positions of the positioning holes are consistent with the installation positions of the metal screws on the positioning handle.

2. The positioning handle injection mold according to claim 1, characterized in that: A hanging column is provided between the front mold handle groove and the front mold needle groove. The hanging column extends out of the end of the front mold handle groove and is used to hang with the end of the needle close to the handle. A support column for tightening the metal screw is provided at a position corresponding to the positioning hole on the rear mold handle groove.

3. The positioning handle injection mold according to claim 2, characterized in that: A metal screw push rod and a needle push rod are arranged on the front mold plate, and the metal screw push rod and the needle push rod are both slidably matched with the front mold plate. The metal screw push rod is coaxially arranged with the corresponding positioning hole, and the driving ends of the metal screw push rod and the needle push rod are connected with a driving plate, and the driving plate is driven by a lifting mechanism.

4. The positioning handle injection mold according to claim 3, characterized in that: Two needle push rods are arranged at intervals along the needle groove of the front mold, and a first insert and a second insert are fixedly installed on the front mold plate respectively. The first insert is arranged at a position between the front mold handle groove and the front mold needle groove, and the second insert is fixed at the front mold needle groove and extends out of the end of the front mold plate to form a U-shaped groove. The hanging column is fixed in the first insert, and the two needle push rods are slidably matched with the first insert and the second insert respectively.

5. The positioning handle injection mold according to claim 1, characterized in that: The positioning hole is provided with a horizontal positioning platform that matches the positioning platform on the metal screw.

6. The positioning handle injection mold according to claim 1, characterized in that: The four corners of the front mold plate and the rear mold plate are respectively provided with positioning protrusions and positioning grooves.

7. The positioning handle injection mold according to claim 4, characterized in that: The front mold plate is provided with a mold core installation groove, the front mold core plate is fixedly installed in the mold core installation groove, and radial extension edges are symmetrically provided on both sides of the rear mold core plate, and the radial extension edges are fixedly installed with the rear mold plate by bolts.

8. The positioning handle injection mold according to claim 4, characterized in that: A docking groove is provided on the needle groove of the rear mold core, and the upper end of the U-shaped groove extends into the docking groove.

9. The positioning handle injection mold according to claim 2, characterized in that: The rear mold plate is provided with a plurality of mounting grooves, in which a column mounting seat is fixedly installed by bolts respectively, and the rear mold plate is provided with a column extension channel and a column limiting groove connected with the mounting groove, the limiting plate at the end of the column is located in the column limiting groove, the column is located in the extension channel and the free end of the column extends out of the groove wall of the rear mold handle groove or the rear mold needle groove.

10. The positioning handle injection mold according to claim 1, characterized in that: A logo insert is arranged in the handle groove of the front mold core, and a concave-convex logo is arranged on the end surface of the logo insert.

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