Powder pressing and demolding device with wedge pressing

Abstract

The utility model discloses a wedge block down -pressing formula powder pressing demoulding device, include: first down -pressing drive mechanism, lift seat, second down -pressing drive mechanism, pull high reset mechanism, wedge block formula down -pressing structure and protective cover, the output of first lift drive mechanism is connected to lift seat, and lift seat is located above the powder pressing mould, and first lift drive mechanism is used for driving lift seat, second down -pressing drive mechanism, pull high reset mechanism, wedge block formula down -pressing structure and protective cover lift, install second down -pressing drive mechanism on lift seat, and the drive direction of second down -pressing drive mechanism is horizontal direction, and the output of second down -pressing drive mechanism is used for driving wedge block formula down -pressing structure to decline. This wedge block down -pressing formula powder pressing demoulding device solves the problem that the upper spiral frame and the lower spiral frame are easy to be clamped into the powder because of the need of the spiral lifting mechanism to leak in the prior art.

Description

Technical Field

[0001] This utility model relates to a powder pressing and demolding device, specifically a wedge-type powder pressing and demolding device. Background Technology

[0002] Chinese patent discloses an automatic demolding device for powder forming, application number CN202420078326.520078326.5. This automatic demolding device includes: an upper press plate, a lower press plate, a lower press drive device, an upper press block mechanism, a lower press block mechanism, and a mold forming device. The upper press block mechanism includes: a base plate, an upper press block, a screw lifting mechanism, a guide device, and a rotary drive device. The base plate is fixed to the bottom of the upper press plate, and the upper press block is fixed to the center of the base plate. The output end of the rotary drive device is connected to the screw lifting mechanism, and the rotary drive device drives the output end of the screw lifting mechanism to rise and fall. The lower press block mechanism includes: a base, a central lifting device, a guide mechanism, and a sliding push plate. The base is fixed to the top of the lower press plate, the central lifting device is fixed to the base, and the guide mechanism is installed on the base. The sliding push plate is located on top of the guide mechanism, and the mold forming device is installed on the sliding push plate.

[0003] Although the above-mentioned automatic demolding device for powder molding can achieve powder demolding, it still has the following drawbacks: the upper pressing block mechanism uses a screw lifting mechanism for downward pressing. Since the screw lifting mechanism needs to be exposed, powder is easily stuck between the upper and lower screw frames in the screw lifting mechanism, which makes it impossible for the upper screw frame to slide smoothly relative to the lower screw frame, and the screw lifting mechanism does not move smoothly. Utility Model Content

[0004] This utility model provides a wedge-type pressing and demolding device for powder, which solves the problem in the prior art where powder is easily stuck between the upper and lower spiral frames due to the need for the spiral lifting mechanism to protrude.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: This utility model discloses a wedge-type pressing powder demolding device, comprising: a first pressing drive mechanism, a lifting seat, a second pressing drive mechanism, a pull-up and reset mechanism, a wedge-type pressing structure, and a protective cover; the output end of the first lifting drive mechanism is connected to the lifting seat, which is located above the powder mold to be pressed; the first lifting drive mechanism is used to drive the lifting seat, the second pressing drive mechanism, the pull-up and reset mechanism, the wedge-type pressing structure, and the protective cover to rise and fall; the second pressing drive mechanism is installed on the lifting seat. The second downward driving mechanism is driven horizontally. The output end of the second downward driving mechanism is used to drive the wedge-type downward structure to descend. The wedge-type downward structure can rise and fall relative to the lifting seat. The wedge-type downward structure and the lifting seat are connected by a pull-up and reset mechanism. The pull-up and reset mechanism is used to pull the wedge-type downward structure closer to the lifting seat. A protective cover is fastened to the lifting seat. The wedge-type downward structure and the pull-up and reset mechanism are installed inside the protective cover. The output end of the second downward driving mechanism is located inside the protective cover. The protective cover has a window that allows only the bottom of the wedge-type downward structure to pass through.

[0006] Preferably, the second pressing drive mechanism includes a horizontal driving cylinder and a first wedge. The horizontal driving cylinder is installed outside the protective cover, and the piston rod of the horizontal driving cylinder passes through the protective cover and is fixed to the first wedge. The first wedge is wedge-shaped and engages with the wedge-type pressing structure.

[0007] Preferably, a rolling contact structure is installed between the first wedge and the wedge-type pressing structure.

[0008] Preferably, the rolling contact structure includes a cage and needle rollers, with the cage fixed to the inclined surface of the first wedge near the wedge-type pressing structure, and at least two needle rollers mounted on the cage.

[0009] Preferably, a downwardly extending guide column is fixed on the lifting seat, and there are at least two guide columns. The guide columns surround the wedge-type pressing structure and guide the wedge-type pressing structure to rise and fall.

[0010] Preferably, the wedge-type pressing structure includes a pressing frame and a second wedge, the second wedge engaging with the first wedge in a wedge shape, the pressing frame being the bottom of the wedge-type pressing structure, and the second wedge being fixed to the pressing frame.

[0011] Preferably, there are two second pressing drive mechanisms, and the first wedge blocks of the two second pressing drive mechanisms are connected by a connecting block.

[0012] Compared to existing technologies, this utility model has the following advantages: In this application, the application scope is for powder briquetting scenarios, therefore, there is a lot of powder in the working environment. Thus, the original spiral lifting mechanism is replaced with a combination of a second downward driving mechanism and a wedge-type downward pressing structure. Since the first downward driving mechanism already drives the lifting seat to rise and fall, if the second downward driving mechanism's driving direction is vertical, it would inevitably lead to an increase in vertical height. Therefore, the second downward driving mechanism is designed to drive horizontally. Simultaneously, protective covers are installed on the output end of the second downward driving mechanism and the wedge-type downward pressing structure to prevent powder from entering the gap between the output end of the second downward driving mechanism and the wedge-type downward pressing structure. This prevents powder jamming and ensures smooth sliding of the wedge-type downward pressing structure relative to the output end of the second downward driving mechanism, and also prevents powder buildup that could cause poor interaction between the output end of the second downward driving mechanism and the wedge-type downward pressing structure. The output end of the second downward driving mechanism pushes the wedge-type downward pressing structure downward. Under the pull of the lifting and reset mechanism, the wedge-type downward pressing structure rises.

[0013] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a wedge-type powder pressing and demolding device.

[0015] Figure 2 This is a structural diagram of the lifting seat, the second downward driving mechanism, the pull-up and reset mechanism, and the wedge-type downward pressing structure.

[0016] Figure 3 This is a schematic diagram of the structure of the lifting seat, the second downward drive mechanism, the pull-up and reset mechanism, and the wedge-type downward pressing structure after the protective cover is opened.

[0017] Figure 4 This is a schematic diagram of the lifting seat, the second pressing drive mechanism, and the lifting and resetting mechanism when the protective cover is opened and there is no wedge-type pressing structure.

[0018] Reference numerals: 1. First pressing drive mechanism; 2. Lifting seat; 20. Guide column; 3. Second pressing drive mechanism; 31. Horizontal drive cylinder; 32. First wedge; 33. Connecting block; 5. Wedge-type pressing structure; 51. Pressing frame; 52. Second wedge; 6. Protective cover; 7. Rolling contact structure; 71. Cage; 72. Needle roller; 8. Housing. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figures 1 to 4 As shown, this utility model discloses a wedge-type pressing powder demolding device, including: a first pressing drive mechanism 1, a lifting seat 2, a second pressing drive mechanism 3, a pull-up and reset mechanism (not shown in the figure), a wedge-type pressing structure 5, and a protective cover 6; the output end of the first lifting drive mechanism is connected to the lifting seat 2, the lifting seat 2 is located above the powder mold to be pressed, and the first lifting drive mechanism is used to drive the lifting seat 2, the second pressing drive mechanism 3, the pull-up and reset mechanism, the wedge-type pressing structure 5, and the protective cover 6 to rise and fall; the second pressing drive mechanism 3 is installed on the lifting seat 2. The driving direction of the second pressing drive mechanism 3 is horizontal. The output end of the second pressing drive mechanism 3 is used to drive the wedge-type pressing structure 5 to descend. The wedge-type pressing structure 5 can rise and fall relative to the lifting seat 2. The wedge-type pressing structure 5 and the lifting seat 2 are connected by a pull-up and reset mechanism. The pull-up and reset mechanism is used to pull the wedge-type pressing structure 5 closer to the lifting seat 2. A protective cover 6 is fastened on the lifting seat 2. The wedge-type pressing structure 5 and the pull-up and reset mechanism are installed inside the protective cover 6. The output end of the second pressing drive mechanism 3 is located inside the protective cover 6. The protective cover 6 has a window that allows only the bottom of the wedge-type pressing structure 5 to pass through.

[0021] In this application, the first pressing drive mechanism 1 can be a linear drive structure such as a hydraulic cylinder or a pneumatic cylinder. The first pressing drive mechanism 1 is installed inside the housing 8.

[0022] In this application, the pull-up and reset mechanism is preferably a spring, but it can also be a cylinder.

[0023] In this application, the second pressing drive mechanism 3 includes a horizontal drive cylinder 31 and a first wedge block 32. The horizontal drive cylinder 31 is installed outside the protective cover 6. The piston rod of the horizontal drive cylinder 31 passes through the protective cover 6 and is fixed to the first wedge block 32. The first wedge block 32 is wedge-shaped and engages with the wedge-shaped pressing structure 5. The first wedge block 32 is the output end of the second pressing drive mechanism 3. The horizontal drive cylinder 31 drives the first wedge block 32 to move. Since the first wedge block 32 is wedge-shaped and engages with the wedge-shaped pressing structure 5, the first wedge block 32 presses the wedge-shaped pressing structure 5 downward.

[0024] In this application, a rolling contact structure 7 is installed between the first wedge 32 and the wedge-type pressing structure 5. The wedge-shaped fit compresses the wedge-type pressing structure 5, resulting in a flat, inclined surface with an acute angle between the inclined surface and the vertical direction. The flatness of the inclined surface facilitates the installation of the rolling contact structure 7. This avoids the installation difficulties caused by the helical surface contact in existing helical lifting structures, thus reducing the installation cost of the rolling contact structure 7.

[0025] Preferably, the rolling contact structure 7 includes a cage 71 and needle rollers 72. The cage 71 is fixed to the inclined surface of the first wedge 32 near the wedge-type pressing structure 5, and at least two needle rollers 72 are mounted on the cage 71. The cage 71 and the needle rollers 72 are a set and are assembled before use. The entire rolling contact structure 7 can be installed simply by mounting the cage 71 on the first wedge 32.

[0026] In this application, a downwardly extending guide post 20 is fixed on the lifting base 2. There are at least two guide posts 20, which surround the wedge-type pressing structure 5 and guide the wedge-type pressing structure 5 to rise and fall. The design of the guide posts 20 allows them to guide the wedge-type pressing structure 5 to rise and fall, and also creates a gap between the guide posts 20 to facilitate the installation of two second pressing drive mechanisms 3.

[0027] In this application, the wedge-type pressing structure 5 includes a pressing frame 51 and a second wedge 52. The second wedge 52 is wedge-shaped and engages with the first wedge 32. The pressing frame 51 is the bottom of the wedge-type pressing structure 5, and the second wedge 52 is fixed to the pressing frame 51. Only the pressing frame 51 protrudes from the protective cover 6. The pressing frame 51 is relatively small, while the second wedge 52 is relatively large. The second wedge 52 has the effect of preventing powder from moving upward, reducing the risk of powder jamming between the second wedge 52 and the first wedge 32.

[0028] To ensure smooth pushing, there are two second pressing drive mechanisms 3, and the first wedge block 32 of the two second pressing drive mechanisms 3 is connected by a connecting block 33.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wedge-block pressing type powder demolding device, characterized in that, include: The system comprises a first pressing drive mechanism (1), a lifting seat (2), a second pressing drive mechanism (3), a pull-up and reset mechanism, a wedge-type pressing structure (5), and a protective cover (6). The output end of the first lifting drive mechanism is connected to the lifting seat (2), which is located above the powder mold to be pressed. The first lifting drive mechanism is used to drive the lifting seat (2), the second pressing drive mechanism (3), the pull-up reset mechanism, the wedge-type pressing structure (5), and the protective cover (6) to lift. A second pressing drive mechanism (3) is installed on the lifting seat (2). The driving direction of the second pressing drive mechanism (3) is horizontal. The output end of the second pressing drive mechanism (3) is used to drive the wedge-type pressing structure (5) to descend. The wedge-type pressing structure (5) can rise and fall relative to the lifting seat (2). The wedge-type pressing structure (5) and the lifting seat (2) are connected by a pull-up and reset mechanism. The pull-up and reset mechanism is used to pull the wedge-type pressing structure (5) closer to the lifting seat (2). A protective cover (6) is fastened to the lifting seat (2). A wedge-type pressing structure (5) and a pull-up and reset mechanism are installed inside the protective cover (6). The output end of the second pressing drive mechanism (3) is located inside the protective cover (6). The protective cover (6) has a window for the bottom of the wedge-type pressing structure (5) to pass through.

2. The wedge-block pressing powder demolding device according to claim 1, characterized in that, The second downward driving mechanism (3) includes a horizontal driving cylinder (31) and a first wedge (32). The horizontal driving cylinder (31) is installed outside the protective cover (6). The piston rod of the horizontal driving cylinder (31) passes through the protective cover (6) and is fixed to the first wedge (32). The first wedge (32) is wedge-shaped and engages with the wedge-type downward pressing structure (5).

3. The wedge-block pressing powder demolding device according to claim 2, characterized in that, A rolling contact structure (7) is installed between the first wedge (32) and the wedge-type pressing structure (5).

4. The wedge-type pressing and demolding device for powder pressing according to claim 3, characterized in that, The rolling contact structure (7) includes a cage (71) and needle rollers (72). The cage (71) is fixed on the inclined surface of the first wedge (32) near the wedge-type pressing structure (5). At least two needle rollers (72) are mounted on the cage (71).

5. The wedge-block pressing type powder demolding device according to claim 4, characterized in that, A downward-extending guide column (20) is fixed on the lifting seat (2). There are at least two guide columns (20). The guide columns (20) surround the wedge-type pressing structure (5) and guide the wedge-type pressing structure (5) to rise and fall.

6. The wedge-block pressing powder demolding device according to claim 5, characterized in that, The wedge-type pressing structure (5) includes a pressing frame (51) and a second wedge (52). The second wedge (52) is wedge-shaped and engages with the first wedge (32). The pressing frame (51) is the bottom of the wedge-type pressing structure (5), and the second wedge (52) is fixed to the pressing frame (51).

7. The wedge-block pressing type powder demolding device according to any one of claims 2-6, characterized in that, There are two second pressing drive mechanisms (3), and the first wedge (32) of the two second pressing drive mechanisms (3) are connected by a connecting block (33).

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