A fastener forming device for hardware manufacturing

Abstract

The present invention relates to a fastener forming device for hardware manufacturing applied to the field of hardware casting. Through the cooperation of the set ejector column, ejector column component and linkage mechanism, the upper die seat is driven to open the die by the lifting drive device, and the upper die seat drives the ejector column component to slide horizontally along the support base and the lower die seat through the linkage mechanism during the die opening process; the first ejector column block first squeezes the two ejector columns at the same time, and the ejector column inclined surface of the first ejector column block enables the ejector columns to lift the formed workpiece upward, and after the two ejector columns rise synchronously for a distance, as the ejector column component continues to slide horizontally, one of the ejector columns slides with the upper end plane of the first ejector column block and stops rising, and the other ejector column continues to rise under the action of the ejector column inclined surface of the second ejector column block, thereby tilting the workpiece to one side, so that the workpiece automatically slides down to complete the discharging action, and the automatic unloading action is realized, which saves manpower and is safer and more reliable, and does not need to add additional electrical equipment, thereby saving energy consumption.

Description

Technical Field

[0001] The present invention relates to a hardware casting device, in particular to a fastener forming device for hardware manufacturing applied in the field of hardware casting. Background Art

[0002] In hardware manufacturing, molten iron is usually poured into a mold to form it. After cooling and forming, the mold is opened and the hardware parts are taken out. Existing mold casting usually requires manual demoulding after the work is completed, which is more troublesome. In addition, since the workpiece may be in a completely cooled state, there is a safety issue of scalding the workers.

[0003] In order to improve the above-mentioned problems, after searching, for example, the specification of patent application number CN202020818251.1 discloses a mold for processing hardware products, including a placing table, the upper surface of which is fixedly installed with a lower mold body by four fixing mechanisms, the fixing mechanism including an L-shaped plate, the two sides of the L-shaped plate are fixedly connected to the placing table and the lower mold body by two bolts, the four corners of the bottom surface of the placing table are fixedly connected to the bracket, the four corners of the upper surface of the placing table are fixedly connected to the sliding rod, an upper mold body is provided above the lower mold body, and the four corners of the upper mold body are slidably connected to the four sliding rods respectively. The mold for processing hardware products achieves the effect of quickly ejecting the mold when casting is completed by providing hydraulic cylinder A, hydraulic cylinder B, ejector rod, ejector block and ejection mechanism.

[0004] However, based on the above search and in combination with the prior art, it is found that most existing hardware casting devices use additional electrical equipment to assist in removing the workpiece. On the one hand, it is difficult to ensure the stability of the electrical equipment operation, thereby making it impossible to ensure the stability of the workpiece discharge. In addition, the additional use of electrical equipment increases the energy consumption of the overall equipment. Therefore, a fastener forming device for hardware manufacturing is provided to improve the above problems. Summary of the Invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that most of the existing hardware casting devices use additional electrical equipment to assist in the removal of the workpiece. On the one hand, it is difficult to ensure the stability of the operation of the electrical equipment, and thus it is difficult to ensure the stability of the workpiece discharge. In addition, the additional use of electrical equipment increases the energy consumption of the overall equipment.

[0006] To solve the above problems, the present invention provides a fastener forming device for hardware manufacturing, comprising a support base, a lower die base fixed to the upper end of the support base via a support column, an upper die base provided on the upper side of the lower die base, a pouring port provided on the top of the upper die base, and a lifting drive device installed between the upper die base and the support base:

[0007] The inner side of the lower die seat is vertically slidably penetrated by a ejector column, and at least two ejector columns are provided;

[0008] A top column component is installed horizontally and slidably between the support base and the lower die base, and a linkage mechanism is provided between the upper die base and the top column component to achieve:

[0009] When the upper die base and the lower die base are in the mold closing state, the upper end surface of the ejector column is flush with the bottom surface of the mold cavity of the lower die base;

[0010] During the process of the upper die base being driven by the lifting drive device to open the die, the upper die base drives the ejector column component to slide horizontally through the linkage mechanism to squeeze the ejector column upward, so that the two ejector columns rise synchronously for a distance, and then one of the ejector columns stops rising and the other continues to rise, thereby tilting the workpiece to one side, causing the workpiece to automatically slide down to complete the discharge action.

[0011] In the above-mentioned fastener forming device for hardware manufacturing, during the process of driving the upper die base to open the die by a lifting drive device, the upper die base drives the ejector column component to slide horizontally through a linkage mechanism to squeeze the ejector column upward, so that the workpiece automatically slides down to complete the discharge action, realizing automatic unloading, saving manpower while being safer and more reliable, and without the need to add additional electrical equipment, saving energy consumption.

[0012] As a further supplement to the present application, the top column component includes a first top column block and a second top column block that are integrally arranged;

[0013] The second top column block is located on one side of the first top column block, and the first top column block and the second top column block are respectively adapted to different top material columns;

[0014] The horizontal plane where the upper end of the second top column block is located is higher than the horizontal plane where the upper end of the first top column block is located;

[0015] The distance between the second ejector column block and the ejector column is greater than the distance between the first ejector column block and the ejector column, and the one end of the first ejector column block and the second ejector column block close to the ejector column are both set to an ejector column inclined surface; in the process of the upper mold base driving the ejector column component to slide horizontally through the linkage mechanism, the first ejector column block first squeezes the two ejector columns at the same time, and the ejector column inclined surface of the first ejector column block enables the ejector columns to lift the formed workpiece upward. After the two ejector columns rise synchronously for a distance, as the ejector column component continues to slide horizontally, one of the ejector columns slides with the upper end plane of the first ejector column block and stops rising, and the other ejector column continues to rise under the action of the ejector column inclined surface of the second ejector column block, thereby tilting the workpiece to one side, causing the workpiece to automatically slide down to complete the discharging action.

[0016] As a further supplement to the present application, a limiting slider is integrally provided at the lower end of the first top column block, and a limiting groove for sliding engagement of the limiting slider is provided on the upper end surface of the support base.

[0017] As a further supplement to this application, the bottom end of the ejector column is provided with a chamfer. When the ejector column is not in contact with the ejector column component, the bottom end of the ejector column is in contact with the upper end surface of the support base, ensuring that the ejector column can be squeezed by the ejector column component and lifted upward smoothly.

[0018] As a further supplement to the present application, when the ejector column is not in contact with the ejector column component, the portion of the ejector column located on the outside of the lower die base is the heat insulation section, and the portion of the ejector column located on the inside of the lower die base is the heat conduction section; the heat conduction section of the ejector column can cooperate with the lower die base to stably heat or cool the workpiece, and the heat insulation section of the ejector column can prevent the temperature inside the lower die base from being exchanged inside and outside.

[0019] As a further supplement to the present application, the linkage mechanism includes a transmission rack, a first transmission gear, and a second transmission gear;

[0020] The transmission rack is vertically fixed to the side end of the upper die base, and a fixing frame is fixed to the side end of the lower die base. The first transmission gear and the second transmission gear are coaxially fixed and rotatably mounted on the inner side of the fixing frame.

[0021] The first transmission gear is meshed with the transmission rack, and the upper end surface of the second ejector column block is equidistantly and integrally provided with a plurality of tooth blocks along its length direction, and the second transmission gear is meshed with the tooth blocks; in the process of driving the upper die base to open the mold by the lifting drive device, the upper die base moves upward with the transmission rack, and the upward-moving transmission rack rotates with the second transmission gear through the first transmission gear, and the second transmission gear drives the ejector column component to slide horizontally between the support base and the lower die base through the tooth block, thereby squeezing the ejector column, so that the ejector column moves upward to eject the workpiece.

[0022] As a further supplement to the present application, the diameter of the first transmission gear is larger than the diameter of the second transmission gear, which can prevent the upward movement speed of the ejector column from being greater than the upward movement speed of the upper mold base.

[0023] As a further supplement to the present application, an elastic reset structure is fixed between the part of the ejector column located on the lower side of the lower mold base and the bottom end of the lower mold base, which can reset the ejector column downward when the mold is closed next time.

[0024] In summary, through the coordinated action of the set ejecting column, ejecting column component and linkage mechanism, the lifting drive device drives the upper die seat to open the die, and during the mold opening process, the upper die seat moves up with the transmission rack, and the upward moving transmission rack drives the second transmission gear to rotate through the first transmission gear, and the second transmission gear drives the ejecting column component to slide horizontally between the support base and the lower die seat through the gear block; the first ejecting column block first squeezes the two ejecting columns at the same time, and the ejecting column inclined surface of the first ejecting column block enables the ejecting columns to push the formed workpiece upward, and after the two ejecting columns rise synchronously for a distance, as the ejecting column component continues to slide horizontally, one of the ejecting columns slides with the upper end plane of the first ejecting column block and stops rising, and the other ejecting column continues to rise under the action of the ejecting column inclined surface of the second ejecting column block, thereby tilting the workpiece to one side, causing the workpiece to automatically slide down to complete the discharging action, realizing automatic unloading, saving manpower, being safer and more reliable, and without the need to add additional electrical equipment, saving energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the front three-dimensional structure of the first embodiment of the present application in the mold closing state;

[0026] Figure 2 This is a schematic diagram of the back three-dimensional structure of the first embodiment of the present application in the mold closing state;

[0027] Figure 3 This is a schematic diagram of the front planar structure of the first embodiment of the present application in the mold closing state;

[0028] Figure 4 This is a schematic side planar structural diagram of the first embodiment of the present application in the mold closing state;

[0029] Figure 5 This is a schematic diagram of the front three-dimensional structure of the first embodiment of the present application in the mold opening state;

[0030] Figure 6 This is a schematic diagram of the front planar structure of the first embodiment of the present application in the mold opening state;

[0031] Figure 7 This is a schematic side planar structural diagram of the first embodiment of the present application in the mold opening state;

[0032] Figure 8 This is a schematic diagram of the three-dimensional structure of the top column component and the linkage mechanism of the first embodiment of the present application.

[0033] Description of the numbers in the figure:

[0034] 1. Support base; 2. Lower mold base; 3. Upper mold base; 4. Pouring gate; 5. Lifting drive device; 6. Ejector column; 7. Ejector column component; 701. First ejector column block; 702. Second ejector column block; 703. Limiting slider; 704. Ejector column inclined surface; 8. Limiting slide; 9. Transmission rack; 10. Fixed frame; 11. First transmission gear; 12. Second transmission gear; 13. Gear block. DETAILED DESCRIPTION

[0035] An embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0036] The first implementation method:

[0037] The present invention provides a fastener forming device for hardware manufacturing, please refer to Figure 1 and Figure 2 , including a supporting base 1, a lower mold base 2 is fixed to the upper end of the supporting base 1 through a supporting column, an upper mold base 3 is provided on the upper side of the lower mold base 2, a pouring gate 4 is provided on the top of the upper mold base 3, and a lifting drive device 5 is installed between the upper mold base 3 and the supporting base 1. The lower mold base 2 and the upper mold base 3 both adopt conventional hardware manufacturing mold equipment in the prior art, and the internal mold cavities of the upper mold base 3 and the lower mold base 2 are both set to the outline of conventional hardware fasteners, wherein the lifting drive device 5 can adopt any lifting drive equipment in the prior art, such as electric push rods, hydraulic cylinders, cylinders and other electrical equipment.

[0038] Among them, the inner side of the lower die base 2 is vertically slidably penetrated by a ejection column 6, and at least two ejection columns 6 are provided (two are used as an example in this embodiment). A ejection column component 7 is horizontally slidably installed between the support base 1 and the lower die base 2, and a linkage mechanism is provided between the upper die base 3 and the ejection column component 7 to achieve:

[0039] like Figure 3 and Figure 4 As shown, when the upper die base 3 and the lower die base 2 are in the mold-clamping state, the upper end surface of the ejector pin 6 is flush with the bottom surface of the mold cavity of the lower die base 2, and a sliding hole with zero tolerance to the ejector pin 6 is provided on the inner side of the lower die base 2 to ensure that liquid metal does not penetrate into the gap between the ejector pin 6 and the sliding hole;

[0040] During the process of the upper die base 3 being driven to open the die by the lifting drive device 5, the upper die base 3 drives the ejector column component 7 to slide horizontally through the linkage mechanism to squeeze the ejector column 6 upward, so that the two ejector columns 6 rise synchronously for a distance, and then one of the ejector columns 6 stops rising and the other ejector column 6 continues to rise, thereby tilting the workpiece to one side, causing the workpiece to automatically slide down to complete the discharging action, realizing the automatic unloading function, saving manpower, being safer and more reliable, and without the need to add additional electrical equipment, saving energy consumption.

[0041] Among them, regarding the top column component 7, specifically, as Figure 8 As shown, the top column component 7 includes an integrated first top column block 701 and a second top column block 702. The second top column block 702 is located on one side of the first top column block 701. The first top column block 701 and the second top column block 702 are respectively adapted to different roots of the top material columns 6. The horizontal plane where the upper end of the second top column block 702 is located is higher than the horizontal plane where the upper end of the first top column block 701 is located.

[0042] Among them, the distance between the second lifting column block 702 and the lifting column 6 is greater than the distance between the first lifting column block 701 and the lifting column 6, and one side end of the first lifting column block 701 and the second lifting column block 702 close to the lifting column 6 is set as a lifting column inclined surface 704.

[0043] like Figure 5-7 As shown, in the process of the upper mold base 3 driving the ejector column component 7 to slide horizontally through the linkage mechanism, the first ejector column block 701 first squeezes the two ejector columns 6 at the same time, and the ejector column inclined surface 704 of the first ejector column block 701 enables the ejector columns 6 to push the formed workpiece upward. After the two ejector columns 6 rise synchronously for a distance, as the ejector column component 7 continues to slide horizontally, one of the ejector columns 6 slides with the upper end plane of the first ejector column block 701 and stops rising, and the other ejector column 6 continues to rise under the action of the ejector column inclined surface 704 of the second ejector column block 702, thereby tilting the workpiece to one side, causing the workpiece to automatically slide down to complete the discharge action.

[0044] Among them, Figure 1 and Figure 8 As shown, a limiting slider 703 is integrally provided at the lower end of the first top column block 701 , and a limiting sliding groove 8 for sliding engagement of the limiting slider 703 is provided on the upper end surface of the support base 1 .

[0045] Among them, the bottom end of the ejector column 6 is provided with a chamfer. When the ejector column 6 is not in contact with the ejector column component 7, the bottom end of the ejector column 6 is in contact with the upper end surface of the support base 1, ensuring that the ejector column 6 can be squeezed by the ejector column component 7 and lifted upward smoothly.

[0046] Among them, when the ejector column 6 is not in contact with the ejector column component 7, the part of the ejector column 6 located on the outside of the lower mold base 2 is the heat insulation section, and the part of the ejector column 6 located on the inside of the lower mold base 2 is the heat conduction section; the heat conduction section of the ejector column 6 can cooperate with the lower mold base 2 to stably heat or cool the workpiece, and the heat insulation section of the ejector column 6 can prevent the temperature inside the lower mold base 2 from being exchanged inside and outside.

[0047] like Figure 8As shown, the linkage mechanism includes a transmission rack 9, a first transmission gear 11 and a second transmission gear 12. The transmission rack 9 is vertically fixed to the side end of the upper mold base 3, and the side end of the lower mold base 2 is fixed with a fixing frame 10. The first transmission gear 11 and the second transmission gear 12 are coaxially fixed and rotatably installed on the inner side of the fixing frame 10. The first transmission gear 11 is meshed with the transmission rack 9, and the upper end surface of the second ejector column block 702 is equidistantly integrated with a plurality of tooth blocks 13 along its length direction, and the second transmission gear 12 is meshed with the tooth block 13; in the process of driving the upper mold base 3 to open the mold by the lifting drive device 5, the upper mold base 3 moves up with the transmission rack 9, and the upward moving transmission rack 9 rotates with the second transmission gear 12 through the first transmission gear 11, and the second transmission gear 12 drives the ejector column component 7 to slide horizontally between the support base 1 and the lower mold base 2 through the tooth block 13, thereby squeezing the ejector column 6, so that the ejector column 6 moves up to eject the workpiece.

[0048] The diameter of the first transmission gear 11 is greater than the diameter of the second transmission gear 12 , which can prevent the ejector column 6 from moving upward at a speed greater than the upper die base 3 .

[0049] When the mold is closed, the lifting drive device 5 is used to drive the upper mold base 3 to move downward. The upper mold base 3 uses the linkage mechanism to make the ejector column part 7 slide horizontally in the opposite direction to reset. The ejector column 6 loses the squeezing effect of the ejector column part 7 and falls downward under the action of its own gravity to reset. In order to further ensure that the ejector column 6 can be smoothly reset downward, an elastic reset structure (not shown in the figure) is fixed between the part of the ejector column 6 located on the lower side of the lower mold base 2 and the bottom end of the lower mold base 2, such as a compression spring. The elastic reset structure can be used to reset the ejector column 6 downward when the mold is closed next time.

[0050] Compared with the prior art, in this solution, through the cooperation of the ejector column 6, the ejector column component 7 and the linkage mechanism, the upper die base 3 is driven to open the die by the lifting drive device 5. During the die opening process, the upper die base 3 moves upward with the transmission rack 9, and the upward transmission rack 9 rotates with the second transmission gear 12 through the first transmission gear 11. The second transmission gear 12 drives the ejector column component 7 to slide horizontally between the support base 1 and the lower die base 2 through the gear block 13; the first ejector column block 701 first squeezes the two ejector columns 6 at the same time, and the ejector column inclined surface 70 of the first ejector column block 701 4 makes the ejector pins 6 push the formed workpiece upward. After the two ejector pins 6 rise synchronously for a distance, as the ejector pin component 7 continues to slide horizontally, one of the ejector pins 6 slides with the upper end plane of the first ejector pin block 701 and stops rising, while the other ejector pin 6 continues to rise under the action of the ejector pin inclined surface 704 of the second ejector pin block 702, thereby tilting the workpiece to one side, causing the workpiece to automatically slide down and complete the unloading action, realizing the automatic unloading function, saving manpower, being safer and more reliable, and without the need to add additional electrical equipment, thus saving energy consumption.

[0051] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A fastener forming device for hardware manufacturing, comprising a support base (1), a lower die base (2) being fixed to the upper end of the support base (1) via a support column, an upper die base (3) being arranged on the upper side of the lower die base (2), a pouring port (4) being arranged on the top of the upper die base (3), a lifting drive device (5) being installed between the upper die base (3) and the support base (1), characterized in that: A material ejection column (6) is vertically slidably penetrated through the inner side of the lower die base (2), and at least two of the material ejection columns (6) are provided; A top column component (7) is horizontally slidably mounted between the support base (1) and the lower die base (2), and a linkage mechanism is provided between the upper die base (3) and the top column component (7) to achieve: When the upper die base (3) and the lower die base (2) are in a mold-clamping state, the upper end surface of the ejector column (6) is flush with the bottom surface of the mold cavity of the lower die base (2); During the process of the upper die seat (3) being driven by the lifting drive device (5) to open the die, the upper die seat (3) drives the ejector column component (7) to slide horizontally through the linkage mechanism until the ejector column (6) is squeezed upward, so that after the two ejector columns (6) rise synchronously for a certain distance, one of the ejector columns (6) stops rising and the other ejector column (6) continues rising, thereby tilting the workpiece to one side, so that the workpiece automatically slides down to complete the discharge action; The top column component (7) comprises a first top column block (701) and a second top column block (702) which are integrally arranged; The second top column block (702) is located on one side of the first top column block (701), and the first top column block (701) and the second top column block (702) are respectively adapted to different top material columns (6); The horizontal plane where the upper end of the second top column block (702) is located is higher than the horizontal plane where the upper end of the first top column block (701) is located; The distance between the second lifting column block (702) and the lifting column (6) is greater than the distance between the first lifting column block (701) and the lifting column (6), and one side end of the first lifting column block (701) and the second lifting column block (702) close to the lifting column (6) is arranged as a lifting column inclined surface (704); A limiting slide block (703) is integrally provided at the lower end of the first top column block (701), and a limiting slide groove (8) for sliding engagement with the limiting slide block (703) is provided on the upper end surface of the support base (1); The bottom end of the ejection column (6) is provided with a chamfer, and when the ejection column (6) is not in contact with the ejection column component (7), the bottom end of the ejection column (6) is in contact with the upper end surface of the support base (1); When the ejector column (6) is not in contact with the ejector column component (7), the portion of the ejector column (6) located outside the lower die base (2) is a heat insulation section, and the portion of the ejector column (6) located inside the lower die base (2) is a heat conduction section.

2. A fastener forming device for hardware manufacturing according to claim 1, characterized in that: The linkage mechanism comprises a transmission rack (9), a first transmission gear (11) and a second transmission gear (12); The transmission rack (9) is vertically fixed to the side end of the upper die base (3), a fixing frame (10) is fixed to the side end of the lower die base (2), and the first transmission gear (11) and the second transmission gear (12) are coaxially fixed and rotatably mounted on the inner side of the fixing frame (10); The first transmission gear (11) meshes with the transmission rack (9); the upper end surface of the second top column block (702) is integrally provided with a plurality of tooth blocks (13) equidistantly along its length direction; and the second transmission gear (12) meshes with the tooth blocks (13).

3. A fastener forming device for hardware manufacturing according to claim 2, characterized in that: The diameter of the first transmission gear (11) is greater than the diameter of the second transmission gear (12).

4. A fastener forming device for hardware manufacturing according to any one of claims 1 to 3, characterized in that: An elastic reset structure is fixed between the portion of the ejection column (6) located at the lower side of the lower die base (2) and the bottom end of the lower die base (2).

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