A low-cost, easy-to-change key molding die

Abstract

This utility model discloses a low-cost, easy-to-change key forming mold, including a fixed mold plate and a movable mold plate. The fixed mold plate is provided with a lower mold core, and the movable mold plate is provided with an upper mold core corresponding to the lower mold core. A sliding position and a first insert for forming the tail end of the key are provided between the fixed mold plate and the movable mold plate. The sliding position can move relative to the lower mold core and the upper mold core. The sliding position is provided with a rotating shaft that can drive the first insert to rotate to realize key changing. By setting the rotating shaft to drive the first insert to rotate, the forming angle of the key tail end is changed, thereby changing the shape of the key, which can realize quick key changing.

Description

Technical Field

[0001] This utility model relates to the field of key mold technology, specifically to a low-cost, easy-to-change key molding mold. Background Technology

[0002] A mold is a tool used to shape objects. It has a cavity inside, into which molten plastic or metal is injected to form the object.

[0003] A key is a common lock-picking tool. A key mainly consists of a key handle and a key bar with a combination function. For keys of the same type but different combinations, the key handle remains the same; only the key bar or its end needs to be changed. Key production is primarily done using key molds. However, traditional key molds have many shortcomings. One type of key requires a corresponding upper and lower mold core. When producing a different type of key, both the upper and lower mold cores need to be removed and replaced, making key changeovers inconvenient, wasting resources, and resulting in high production costs. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a low-cost, easy-to-change key molding die, which solves the problems of difficult key mold changes, slow changeover speed, and high production costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A low-cost, easy-to-change key forming mold includes a fixed template and a movable template. The fixed template has a lower mold core, and the movable template has an upper mold core corresponding to the lower mold core. A sliding position and a first insert for forming the tail end of the key are provided between the fixed template and the movable template. The sliding position can move relative to the lower mold core and the upper mold core. The sliding position has a rotating shaft that can drive the first insert to rotate to realize key changing. By setting the rotating shaft to drive the first insert to rotate, the forming angle of the key tail end is changed, thereby changing the shape of the key, which can realize quick key changing.

[0007] As a preferred embodiment, the lower mold core is provided with a first mounting seat that can move with the position, the first mounting seat is provided with a cylinder that is driven to rotate by a rotating shaft, the first insert is disposed inside the cylinder, and the cylinder can drive the first insert to rotate around the cylinder axis.

[0008] As a preferred embodiment, a driving component is detachably installed inside the cylinder, and the first insert is detachably installed on the driving component. The cylinder drives the first insert to rotate through the driving component.

[0009] As a preferred embodiment, the template is provided with a positioning element for positioning the rotational position of the cylinder, and the outer surface of the cylinder is provided with a plurality of grooves extending along the length of the cylinder, and the positioning element can be inserted into the grooves to position the rotational position of the cylinder.

[0010] As a preferred embodiment, the positioning element is a ball screw.

[0011] As a preferred embodiment, the mounting position has a first mounting groove for mounting a rotating shaft, and a step is provided at the end of the first mounting groove away from the first mounting seat. The step is provided with scale markings for viewing the rotation angle of the rotating shaft.

[0012] As a preferred embodiment, the rotating shaft is provided with an adjustment part on the end face near the step, and the rotating shaft can be driven to rotate by using an external tool in conjunction with the adjustment part.

[0013] As a preferred embodiment, a second insert for forming the key shaft is further provided between the fixed template and the moving template.

[0014] As a preferred embodiment, the fixed template is further provided with a second mounting base that can move with the position, and the second insert is detachably mounted on the second mounting base.

[0015] As a preferred embodiment, the second mounting base is further provided with a connecting block, on which the first insert is detachably mounted.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, by setting a rotating shaft to drive the first insert to rotate, the forming angle of the key tail end is changed, thereby changing the shape of the key, which can realize the rapid change of key shape and reduce production time and cost.

[0017] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model;

[0019] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the mold core assembly state according to an embodiment of the present invention;

[0021] Figure 4 This is a preliminary exploded view of the mold core assembly structure according to an embodiment of this utility model;

[0022] Figure 5yes Figure 4 Enlarged schematic diagram of the structure at point A;

[0023] Figure 6 This is a further exploded view of the mold core assembly structure according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached diagram:

[0025] 10-Fixed mold plate; 11-Lower mold core; 12-First cavity; 13-Slide; 131-Second mounting slot; 14-First mounting slot; 15-Step; 16-Scale marking; 17-Angled guide pillar; 18-Guide rod; 19-First injection hole;

[0026] 20-First mounting base; 21-First insert; 22-Third cavity; 23-Cylinder; 24-Groove; 25-Driver; 26-Positioning component; 27-Rotating shaft; 28-Adjusting part;

[0027] 30 - Second mounting base; 31 - Second insert; 32 - Second cavity; 33 - Connecting block;

[0028] 40 - Moving mold plate; 41 - Upper mold core; 42 - Second injection hole. Detailed Implementation

[0029] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] like Figure 1-6As shown, this utility model discloses a low-cost, easy-to-change key forming mold, including a fixed template 10 and a movable template 40. The fixed template 10 is provided with a lower mold core 11, and the movable template 40 is provided with an upper mold core 41 corresponding to the lower mold core 11. A sliding position 13 and a first insert 21 for forming the tail end of the key are provided between the fixed template 10 and the movable template 40. The sliding position 13 can move relative to the lower mold core 11 and the upper mold core 41. The sliding position 13 is provided with a rotating shaft 27 that can drive the first insert 21 to rotate to realize key changing. By setting the rotating shaft 27 to drive the first insert 21 to rotate, the forming angle of the key tail end is changed, thereby changing the shape of the key, which can realize quick key changing.

[0032] In this utility model, a guide rod 18 is provided between the fixed template 10 and the moving template 40, which can make the moving template 40 move more stably; an inclined guide post 17 is provided on the slide position 13, which can make the movement of the slide position 13 more stable.

[0033] In this utility model, a first cavity 12 is formed between the upper mold core and the lower mold core 11 to form a key handle and part of the key shaft. The second insert 31 is provided with a second cavity 32 to form part of the key shaft. The first insert 21 is provided with a third cavity 22 to form the tail end of the key. The first cavity 12, the second cavity 32 and the third cavity 22 are sequentially connected to form a complete key cavity.

[0034] In this utility model, there are eight first cavities 12, arranged in two columns, with four first cavities 12 in each column. Similarly, there are eight second cavities 32 and eight third cavities 22. There are eight first inserts 21 and eight second inserts 31. One second insert 31 has one second cavity 32, and one first insert 21 has one third cavity 22.

[0035] In this invention, the fixed template 10 and the moving template 40 are respectively provided with a first injection hole 19 and a second injection hole 42, through which the raw materials for producing keys can be injected into the key cavity.

[0036] In this utility model, there are two row positions 13, which are arranged opposite to each other, and the lower mold core 11 and the upper mold core 41 are located between the two row positions 13.

[0037] The lower mold core 11 is provided with a first mounting seat 20 that can move with the guide position 13. The first mounting seat 20 is provided with a cylinder 23 that is driven to rotate by a rotating shaft 27. The first insert 21 is disposed inside the cylinder 23. The cylinder 23 can drive the first insert 21 to rotate around the axis of the cylinder 23. A drive member 25 is detachably installed inside the cylinder 23. The first insert 21 is detachably installed on the drive member 25. The cylinder 23 drives the first insert 21 to rotate through the drive member 25. The fixed template 10 is provided with a positioning member 26 for positioning the rotation position of the cylinder 23. The outer surface of the cylinder 23 is provided with a plurality of grooves 24 extending along the length direction of the cylinder 23. The positioning member 26 can extend into the grooves 24 to position the rotation position of the cylinder 23. By setting the cylinder 23 and the drive member 25, it is not necessary to fix the first insert 21 to the rotating shaft 27. When the drive member 25 is deformed after long-term use, it is not necessary to replace the rotating shaft 27, which greatly reduces the cost.

[0038] In this utility model, the row position 13 is provided with a second mounting groove 131. During assembly, the first mounting seat 20 is embedded in the second mounting groove 131.

[0039] The positioning component 26 is a ball screw; one end of the ball screw that extends into the groove 24 has a movable steel ball, and a spring (not shown) is provided inside the ball screw. The two ends of the spring abut against the ball screw and the movable steel ball respectively, so that the movable steel ball can extend and retract along the axis of the ball screw. During assembly, when the rotating shaft 27 is rotated, the cylinder 23 rotates, so that the cylinder 23 presses against the movable steel ball and moves towards the ball screw side. When it reaches the next groove 24, the movable steel ball pops out and gets stuck in the groove 24, thus positioning the cylinder 23.

[0040] The row position 13 has a first mounting groove 14 for mounting the rotating shaft 27. A step 15 is provided at the end of the first mounting groove 14 away from the first mounting seat 20. The step 15 is provided with a scale mark 16 for viewing the rotation angle of the rotating shaft 27. The scale mark 16 can be used to view the specific rotation distance of the rotating shaft 27, thus improving accuracy.

[0041] The rotating shaft 27 is provided with an adjustment part 28 on one end face near the step 15. The rotating shaft 27 can be rotated by using an external tool in conjunction with the adjustment part 28. In this embodiment, the adjustment part 28 is an internal hexagonal groove provided on the end face. The rotating shaft 27 can be rotated by inserting an external hexagonal tool into the internal hexagonal groove.

[0042] A second insert 31 for forming the key shaft is provided between the fixed template 10 and the moving template 40; a second mounting seat 30 that can move with the moving position 13 is also provided on the fixed template 10, and the second insert 31 is detachably mounted on the second mounting seat 30; by setting the second insert 31, the complexity of the key cavity can be increased and the product quality can be improved.

[0043] The second mounting base 30 is also provided with a connecting block 33, and the first insert 21 is detachably mounted on the connecting block 33; by providing the connecting block 33, the sliding position 13 can drive the second mounting base 30 to move together.

[0044] In this invention, the bottom of the fixed mold is provided with an elastic element, which can reduce the impact force when the moving mold and the mold are in motion.

[0045] The method of using this utility model is as follows: The raw material is injected along the first injection hole 19 and the second injection hole 42. The raw material moves along the first cavity 12, the second cavity 32 and the third cavity 22 and fills the cavity. After cooling, a key is formed. When it is necessary to change the mold, the tool is inserted into the adjustment part 28 and rotated to a certain scale mark 16. The rotating shaft 27 drives the third mold core 132 to rotate to the designated position through the cylinder 23 and the driving part 25. The positioning part 26 is inserted into the groove 24 to position the cylinder 23, thereby realizing the mold change.

[0046] This invention uses a rotating shaft 27 to drive the first insert 21 to rotate, thereby changing the angle at which the tail end of the key is formed and thus changing the shape of the key. This allows for quick key redesign and reduces production time and costs.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A low-cost, easy-to-change key forming mold, comprising a fixed template and a movable template, wherein the fixed template is provided with a lower mold core, and the movable template is provided with an upper mold core corresponding to the lower mold core, characterized in that: Between the fixed template and the moving template, there is a slide and a first insert for forming the tail end of the key. The slide can move relative to the lower mold core and the upper mold core. The slide is provided with a rotating shaft that can drive the first insert to rotate to realize the key changing shape.

2. A low cost, easy changeover key forming die according to claim 1, wherein The lower mold core is provided with a first mounting seat that can move with the position. The first mounting seat is provided with a cylinder that is driven to rotate by a rotating shaft. The first insert is disposed inside the cylinder. The cylinder can drive the first insert to rotate around the cylinder axis.

3. A low cost, easy changeover key forming die according to claim 2, wherein A drive component is detachably installed inside the cylinder, and the first insert is detachably installed on the drive component. The cylinder drives the first insert to rotate through the drive component.

4. The low cost, easy changeover key forming die of claim 3, wherein, The template is provided with a positioning element for positioning the rotational position of the cylinder. The outer surface of the cylinder is provided with several grooves extending along the length of the cylinder. The positioning element can be inserted into the grooves to position the rotational position of the cylinder.

5. A low cost, easy changeover key forming die according to claim 4, wherein The positioning component is a ball screw.

6. A low cost, easy changeover key forming die as claimed in claim 2 wherein, The row position has a first mounting groove for mounting a rotating shaft. A step is provided at the end of the first mounting groove away from the first mounting seat. The step is provided with scale markings for viewing the rotation angle of the rotating shaft.

7. A low cost, easy changeover key forming die according to claim 6 wherein, The rotating shaft has an adjustment part on one end face near the step, and the rotating shaft can be driven to rotate by using an external tool in conjunction with the adjustment part.

8. A low-cost, easily changeable key molding die according to claim 1, characterized in that, A second insert for forming the key shaft is also provided between the fixed template and the moving template.

9. A low-cost, easily changeable key molding die according to claim 8, characterized in that, The fixed template is also provided with a second mounting base that can move with the position, and the second insert can be detachably installed on the second mounting base.

10. A low-cost, easily changeable key molding die according to claim 9, characterized in that, The second mounting base is also provided with a connecting block, and the first insert is detachably mounted on the connecting block.

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