A diamond jewelry injection molding machine and its automatic demolding device

Abstract

This utility model discloses a diamond jewelry injection molding machine and its automatic demolding device, relating to the field of injection molding production technology. The automatic demolding device includes: an upper mold moving mechanism for moving the upper mold of the injection mold between the injection zone and the demolding zone; and a demolding mechanism including a demolding pin and a vertical power mechanism for driving the demolding pin to move up and down in the height direction. The demolding pin is installed at the moving end of the vertical power mechanism. When the vertical power mechanism drives the demolding pin to descend until the demolding pin inserts into the corresponding injection hole of the upper mold, the demolding pin ejects the product. This achieves automatic product transfer and demolding, reduces the number of operators, lowers labor costs, avoids damage to the upper mold of the injection mold from impacts, improves the service life of the upper mold, and significantly improves demolding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and more specifically, to an automatic demolding device for rhinestone jewelry. Furthermore, this utility model also provides an injection molding machine for rhinestone jewelry that includes the aforementioned automatic demolding device. Background Technology

[0002] In the injection molding process of diamond jewelry, after the product is injection molded in the injection area, the molded product still remains in the upper mold of the injection mold. It is necessary to knock the top of the upper mold to release the product and make it detach from the injection hole of the upper mold. Knocking the mold to release the product not only increases the number of personnel required on the production line and increases labor costs, but also easily damages the upper mold and reduces its service life.

[0003] In conclusion, how to improve the demolding efficiency and reduce the demolding cost after injection molding of diamond jewelry is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an automatic demolding device that realizes automatic transfer and demolding of products, reduces the number of operators, lowers labor costs, avoids damage to the upper mold of the injection mold by knocking, improves the service life of the upper mold, and significantly improves demolding efficiency.

[0005] In addition, this utility model also provides a diamond jewelry injection molding machine including the above-mentioned automatic demolding device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic demolding device, comprising:

[0008] The upper mold moving mechanism is used to move the upper mold of the injection mold between the injection zone and the demolding zone;

[0009] The demolding mechanism includes a demolding pin and a vertical power mechanism for driving the demolding pin to move up and down in the height direction. The demolding pin is installed on the moving end of the vertical power mechanism. When the vertical power mechanism drives the demolding pin to descend until the demolding pin is inserted into the injection hole corresponding to the upper mold, the demolding pin ejects the product.

[0010] Preferably, the vertical power mechanism is connected to the demolding area of ​​the machine tool body through at least two vertical support columns, and the moving end of the vertical power mechanism is slidably connected to the vertical support columns so that the vertical support columns restrict the moving end of the vertical power mechanism from rising and falling along the height direction.

[0011] Preferably, the moving end of the vertical power mechanism is provided with a movable plate, and the movable plate is provided with a guide sleeve for slidingly engaging with the vertical support column. The guide sleeve protrudes from the top and / or bottom surface of the movable plate.

[0012] Preferably, the demolding pin is connected to the moving end of the vertical power mechanism via a demolding pin mounting plate, and the demolding pin mounting plate is detachably connected to the moving end of the vertical power mechanism.

[0013] Preferably, a demolding pin stabilizing plate is provided below the demolding pin mounting plate, the demolding pin stabilizing plate is provided with a demolding pin guide hole for the demolding pin to pass through, and the demolding pin stabilizing plate is fixedly connected to the machine tool body.

[0014] Preferably, the upper mold moving mechanism includes a horizontal linear power mechanism, the fixed end of which is connected to the machine tool body, and the moving end of which is connected to the upper mold support of the upper mold.

[0015] Preferably, it further includes a horizontal guide component, which includes a linear guide rail and a guide rail slider. The linear guide rail is disposed between the injection area and the demolding area, and the guide rail slider is slidably mounted on the linear guide rail and connected to the upper mold support.

[0016] Preferably, the upper mold moving mechanism includes a rotary power mechanism, which includes a rotary motor and a turntable. The fixed end of the rotary motor is connected to the machine tool body, the turntable is sleeved with the output shaft of the rotary motor, and the upper mold is mounted on the turntable through an upper mold bracket.

[0017] Preferably, it also includes a proximity switch. When the upper mold moves to the demolding area, the proximity switch outputs an upper mold positioning signal, and the upper mold moving mechanism stops moving.

[0018] A diamond jewelry injection molding machine, comprising the automatic demolding device described in any of the above claims.

[0019] The automatic demolding device provided by this utility model has an upper mold moving mechanism that can automatically transfer the product to be demolded from the injection molding area to the demolding area. The demolding mechanism can realize the automatic demolding of the product, which not only reduces the number of operators and lowers labor costs, but also avoids damage to the upper mold of the injection mold by knocking, improves the service life of the upper mold, and significantly improves demolding efficiency.

[0020] In addition, this utility model also provides a diamond jewelry injection molding machine including the above-mentioned automatic demolding device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the automatic demolding device provided by this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the diamond jewelry injection molding machine provided by this utility model.

[0024] Figures 1-2 middle:

[0025] 10-Machine tool body; a-Injection molding area; b-Demolding area; 1-Horizontal linear power mechanism; 2-Demolding mechanism; 21-Demolding cylinder; 22-Moving plate; 221-Guide sleeve; 23-Demolding pin mounting plate; 24-Demolding pin; 25-Demolding pin stabilizing plate; 26-Vertical support column; 3-Upper mold; 4-Upper mold bracket. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The core of this utility model is to provide an automatic demolding device, which realizes automatic transfer and demolding of products, reduces the number of operators, lowers labor costs, avoids damage to the upper mold of the injection mold by knocking, improves the service life of the upper mold, and significantly improves demolding efficiency.

[0028] In addition, this utility model also provides a diamond jewelry injection molding machine including the above-mentioned automatic demolding device.

[0029] The automatic demolding device provided by this utility model includes:

[0030] The upper mold moving mechanism is used to move the upper mold 3 of the injection mold between the injection zone a and the demolding zone b;

[0031] The demolding mechanism 2 includes a demolding pin 24 and a vertical power mechanism for driving the demolding pin 24 to move up and down in the height direction. The demolding pin 24 is installed on the moving end of the vertical power mechanism. When the vertical power mechanism drives the demolding pin 24 to descend until the demolding pin 24 is inserted into the injection hole corresponding to the upper mold 3, the demolding pin 24 ejects the product.

[0032] Please refer to Figure 2 To avoid interference between the injection molding and demolding processes of diamond jewelry, the machine tool body 10 is provided with an injection molding area a and a demolding area b. The injection molding area a is used for injection molding of the product, and the demolding area b is used for demolding the product after molding.

[0033] Please refer to Figure 1 The machine tool body 10 is provided with an upper mold moving mechanism between the injection molding area a and the demolding area b. The upper mold 3 of the injection mold is connected to the upper mold moving mechanism through the upper mold support 4. The upper mold moving mechanism is used to drive the upper mold 3 to move between the injection molding area a and the demolding area b.

[0034] The upper mold moving mechanism can be configured as a linear motion mechanism such as a cylinder, hydraulic cylinder, linear motor and ball screw structure, or a rotary power mechanism such as a servo motor. The specific structure and dimensions of the upper mold moving mechanism are determined based on the relative positions of the injection molding area a and the demolding area b in actual production and the layout of various structures on the machine tool body 10, and will not be elaborated here.

[0035] The demolding mechanism 2 is used to eject the product from the upper mold 3 using pressure. The demolding pin 24 is used to insert into the injection hole of the upper mold 3 to contact the molded product and apply downward pressure to the product. The size of the demolding pin 24 is determined with the size of the injection hole of the upper mold 3 in actual production, and the distribution of the demolding pin 24 is determined according to the distribution of the injection holes in the upper mold 3 in actual production.

[0036] The moving end of the vertical power mechanism is connected to the demolding pin 24, which is used to drive the demolding pin 24 to rise and fall in the height direction, thereby driving the demolding pin 24 to fall in the height direction and using pressure to push the product out of the upper mold 3. After demolding, the demolding pin 24 is driven to rise in the height direction to complete the reset. The vertical power mechanism can be specifically set as a cylinder, hydraulic cylinder, linear motor, etc.

[0037] When demolding is required, firstly, control the upper mold moving mechanism to move the upper mold 3 from the injection area a to the demolding area b until the upper mold 3 is in place; then control the vertical power mechanism to drive the demolding pin 24 to descend along the height direction, so that the demolding pin 24 moves towards the upper mold 3 until the demolding pin 24 is inserted into the injection hole of the upper mold 3, and the demolding pin 24 uses pressure to eject the molded product from the upper mold 3; finally, control the vertical power mechanism to drive the demolding pin 24 to rise along the height direction, so that the demolding pin 24 is reset.

[0038] In this embodiment, the upper mold moving mechanism can automatically transfer the product to be demolded from the injection molding area a to the demolding area b. The demolding mechanism 2 can realize the automatic demolding of the product, which not only reduces the number of operators and lowers labor costs, but also avoids damaging the upper mold 3 of the injection mold by knocking, thus improving the service life of the upper mold 3 and significantly improving the demolding efficiency.

[0039] Preferably, a proximity switch is also included. When the upper mold 3 moves to the demolding area b, the proximity switch outputs an upper mold positioning signal, and the upper mold moving mechanism stops moving. The position of the upper mold 3 is accurately controlled by the proximity switch to improve the alignment accuracy between the demolding pin 24 of the demolding mechanism 2 and the upper mold 3, so that the demolding pin 24 can accurately press out the product formed in the upper mold 3.

[0040] The specific type and model of the proximity switch are determined based on the alignment accuracy requirements of the upper mold 3 and the ejector pin 24 in actual production, and will not be elaborated here.

[0041] Based on the above embodiments, the structure of the vertical power mechanism is defined. The vertical power mechanism is connected to the demolding area b of the machine tool body 10 through at least two vertical support columns 26. The moving end of the vertical power mechanism is slidably connected to the vertical support columns 26 so that the vertical support columns 26 restrict the moving end of the vertical power mechanism from rising and falling in the height direction.

[0042] Please refer to Figure 1 The vertical support column 26 is arranged perpendicular to the surface of the machine tool body 10, and the moving end of the vertical power mechanism is slidably connected to the vertical support column 26, such as... Figure 1 The movable plate 22 at the bottom of the piston rod of the demolding cylinder 21 shown is slidably connected to the vertical support column 26. At this time, the vertical support column 26 not only supports the vertical power mechanism, but also guides and limits the moving end of the vertical moving mechanism to prevent the moving end of the vertical moving mechanism from deviating from the height direction.

[0043] The moving end of the vertical power mechanism is slidably connected to the vertical support column 26. Either the moving end of the vertical moving mechanism has a guide hole, or the moving end of the vertical moving mechanism has a guide sleeve 221. By increasing the length of the sliding pair, the limiting and guiding effect of the sliding pair on the moving end of the vertical moving mechanism is improved.

[0044] For example, the movable end of the vertical power mechanism may be provided with a movable plate 22, and the movable plate 22 may be provided with a guide sleeve 221 for slidingly engaging with the vertical support column 26. The guide sleeve 221 protrudes from the top and / or bottom surface of the movable plate 22. The guide sleeve 221 may be integrally formed with the movable plate 22, or it may be as follows: Figure 1 As shown, it is fitted into the guide sleeve mounting hole of the movable plate 22 by means of interference fit, key connection, etc.

[0045] Based on the above embodiments, the installation method of the demolding pin 24 is limited. The demolding pin 24 can be connected to the moving end of the vertical power mechanism through the demolding pin mounting plate 23. The demolding pin mounting plate 23 and the moving end of the vertical power mechanism are detachably connected so that the demolding requirements of different models of products can be met by replacing different demolding pin mounting plates 23.

[0046] The demolding pin mounting plate 23 is detachably connected to the moving end of the vertical power mechanism, and can be specifically configured as a bolt connection, pin connection, snap-fit ​​connection, etc.

[0047] In order to ensure that the ejector pin mounting plate 23 is stably installed on the moving end of the vertical power mechanism and to avoid relative shaking of the ejector pin mounting plate 23 during the lifting process, which would reduce the alignment accuracy of the ejector pin 24 and the injection hole of the upper mold 3, it is understandable that locking components such as locking bolts, connecting pins, and connecting buckles are usually located on the outer edge of the ejector pin mounting plate 23, and the locking components are evenly distributed along the outer edge of the ejector pin mounting plate 23.

[0048] Based on the above embodiments, a demolding pin stabilizing plate 25 can be provided below the demolding pin mounting plate 23. The demolding pin stabilizing plate 25 is provided with a demolding pin guide hole for the demolding pin 24 to pass through. The demolding pin stabilizing plate 25 is fixedly connected to the machine tool body 10.

[0049] It is understandable that the demolding pin stabilizing plate 25 is fixedly connected to the machine tool body 10. This connection can be achieved by the demolding pin stabilizing plate 25 being connected to the surface of the machine tool body 10 via a stabilizing plate support column, or by the demolding pin stabilizing plate 25 being connected to the vertical support column 26. As long as the height of the demolding pin stabilizing plate 25 relative to the machine tool body 10 remains unchanged, it is acceptable.

[0050] Therefore, the height of the ejector pin stabilizing plate 25 relative to the machine tool body 10 is constant. When the vertical motion mechanism drives the ejector pin mounting plate 23 and the ejector pin 24 to descend, the ejector pin 24 passes through the ejector pin guide hole and is inserted into the injection hole of the upper mold 3. The ejector pin guide hole can guide and limit the ejector pin 24.

[0051] Based on the above embodiments, the mechanism of the upper mold moving mechanism is further defined. The upper mold moving mechanism includes a horizontal linear power mechanism 1. The fixed end of the horizontal linear power mechanism 1 is connected to the machine tool body 10, and the moving end of the horizontal linear power mechanism 1 is connected to the upper mold support 4 of the upper mold 3.

[0052] The horizontal linear power mechanism 1 is located between the injection molding area a and the demolding area b. The movement trajectory of the horizontal linear power mechanism 1 is a straight line. Compared with the movement trajectory being a broken line or a curve, it is beneficial to shorten the transfer path of the upper mold 3 and improve the transfer efficiency.

[0053] The horizontal linear power mechanism 1 can be specifically configured as a linear motor, cylinder, oil cylinder or ball screw structure. When the horizontal linear power mechanism 1 is configured as a linear motor, the linear motor is fixed to the surface of the machine tool body 10 through the motor mounting base. The upper mold support 4 is connected to the telescopic rod of the linear motor. The extension and retraction of the telescopic rod drives the upper mold support 4 to move relative to the machine tool body 10.

[0054] When the horizontal linear power mechanism 1 is set as a cylinder or hydraulic cylinder, the cylinder or hydraulic cylinder is fixed to the surface of the machine tool body 10 through the mounting plate. The upper mold support 4 is connected to the piston rod, and the upper mold support 4 moves relative to the machine tool body 10 through the extension and retraction of the piston rod.

[0055] When the horizontal linear power mechanism 1 is set as a ball screw structure, the upper mold support 4 is threadedly connected to the screw through a threaded sleeve, and at the same time, the upper mold support 4 or the threaded sleeve is slidably connected to the machine tool body 10, converting the rotation of the screw into the movement of the upper mold support 4 relative to the machine tool body 10.

[0056] In this embodiment, the horizontal linear power mechanism 1 is used to drive the upper mold 3 to move between the injection molding area a and the demolding area b, resulting in a short transfer path and high transfer efficiency.

[0057] Preferably, the horizontal guide component includes a linear guide rail and a guide rail slider. The linear guide rail is located between the injection molding area a and the demolding area b. The guide rail slider is slidably mounted on the linear guide rail and is connected to the upper mold support 4. The sliding pair between the linear guide rail and the guide rail slider guides and limits the upper mold support 4 and the upper mold 3.

[0058] Based on the above embodiments, in order to improve the production efficiency of the diamond jewelry injection molding machine, the upper mold moving mechanism can be set to include a rotary power mechanism, which includes a rotary motor and a turntable. The fixed end of the rotary motor is connected to the machine tool body 10, and the turntable is sleeved with the output shaft of the rotary motor. The upper mold 3 is installed on the turntable through the upper mold bracket 4.

[0059] In this embodiment, one set of upper mold 3 and upper mold support 4 can be set up in injection molding zone a for injection molding production, and another set of upper mold 3 and upper mold support 4 can be set up in demolding zone b for demolding operation. Compared with injection molding zone a or demolding zone b being empty, the production efficiency of injection molding machine is effectively improved.

[0060] In addition to the automatic demolding device described above, this utility model also provides a rhinestone jewelry injection molding machine that includes the automatic demolding device disclosed in the above embodiments. For the structure of other parts of the rhinestone jewelry injection molding machine, such as the specific structure of injection zone a, please refer to the prior art, which will not be repeated here.

[0061] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0062] The above provides a detailed description of the diamond jewelry injection molding machine and its automatic demolding device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An automatic demolding device characterized by comprising: include: The upper mold moving mechanism is used to move the upper mold (3) of the injection mold between the injection zone (a) and the demolding zone (b); The demolding mechanism (2) includes a demolding pin (24) and a vertical power mechanism for driving the demolding pin (24) to rise and fall in the height direction. The demolding pin (24) is installed on the moving end of the vertical power mechanism. When the vertical power mechanism drives the demolding pin (24) to descend to the injection hole corresponding to the upper mold (3), the demolding pin (24) ejects the product.

2. The automatic demolding apparatus according to claim 1, characterized by The vertical power mechanism is connected to the demolding area (b) of the machine tool body (10) via at least two vertical support columns (26). The moving end of the vertical power mechanism is slidably connected to the vertical support columns (26) so that the vertical support columns (26) restrict the moving end of the vertical power mechanism from rising and falling along the height direction.

3. The automatic demolding device according to claim 2, characterized in that The moving end of the vertical power mechanism is provided with a movable plate (22), and the movable plate (22) is provided with a guide sleeve (221) for slidingly engaging with the vertical support column (26). The guide sleeve (221) protrudes from the top and / or bottom surface of the movable plate (22).

4. The automatic demolding device according to claim 1, characterized in that, The demolding pin (24) is connected to the moving end of the vertical power mechanism via the demolding pin mounting plate (23), and the demolding pin mounting plate (23) is detachably connected to the moving end of the vertical power mechanism.

5. The automatic demolding device according to claim 4, characterized in that Below the demolding pin mounting plate (23) is a demolding pin stabilizing plate (25), which has a demolding pin guide hole for the demolding pin (24) to pass through, and is fixedly connected to the machine tool body (10).

6. The automatic demolding device according to any one of claims 1 to 5, characterized in that The upper mold moving mechanism includes a horizontal linear power mechanism (1), the fixed end of which is connected to the machine tool body (10), and the moving end of which is connected to the upper mold support (4) of the upper mold (3).

7. The automatic demolding device according to claim 6, characterized in that It also includes a horizontal guide assembly, which includes a linear guide rail and a guide rail slider. The linear guide rail is located between the injection area (a) and the demolding area (b). The guide rail slider is slidably mounted on the linear guide rail and is connected to the upper mold support (4).

8. The automatic demolding device according to any one of claims 1 to 5, characterized in that The upper mold moving mechanism includes a rotary power mechanism, which includes a rotary motor and a turntable. The fixed end of the rotary motor is connected to the machine tool body (10), and the turntable is sleeved with the output shaft of the rotary motor. The upper mold (3) is mounted on the turntable through an upper mold bracket (4).

9. The automatic demolding device according to any one of claims 1 to 5, characterized in that It also includes a proximity switch. When the upper mold (3) moves to the demolding area (b), the proximity switch outputs an upper mold positioning signal, and the upper mold moving mechanism stops moving.

10. A drill jewelry injection molding machine characterized by, Includes the automatic demolding device as described in any one of claims 1-9.

Images