Column-free mold locking device and compression molding equipment

Abstract

The invention belongs to the technical field of injection molding machine mold locking equipment, and discloses a column-free mold locking device and compression molding equipment. The column-free mold locking device comprises a machine body unit and a mold opening and closing unit, the machine body unit comprises a first supporting piece, a second supporting piece and a first connecting piece, the second supporting piece is fixed, the first supporting piece and the second supporting piece are sequentially arranged in the vertical direction, the first end of the first connecting piece is fixedly connected to the first supporting piece, and the second end of the first connecting piece penetrates through the second supporting piece; the mold opening and closing unit is slidably connected with the second supporting piece and fixed, the output end of the mold opening and closing unit can be close to the second supporting piece in the vertical direction and can be fixedly connected with the first supporting piece, and a mold is placed between the output end of the mold opening and closing unit and the second supporting piece. The projection of the enclosure area of the output end of the mold opening and closing unit on the second supporting piece does not coincide with the projection of the enclosure area of the first connecting piece on the second supporting piece. The operation space is increased, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding machine clamping equipment, in particular to a column-free clamping device and compression molding equipment. Background Art

[0002] In the injection molding process, mold clamping is a crucial link that directly affects the quality of plastic parts, production efficiency and equipment safety. Mold clamping refers to the injection molding machine using the mold clamping mechanism to tightly close the fixed mold and movable mold of the mold and apply sufficient pressure to resist the expansion force generated when the molten plastic is injected into the mold cavity during the injection stage, preventing the mold from being stretched open, resulting in overflow, deformation of plastic parts and other problems. In the current conventional four-column injection molding machine, the mold is placed between the four columns, which limits the operating space and has low applicability to the mold. At the same time, it is not convenient for automated equipment to form an automated production line.

[0003] The related art provides a C-type clamping mechanism and an injection molding machine, which increase the operating space. The overall structure is a C-shaped frame, and a fixed mold plate and a movable mold plate are arranged on the frame in an upper and lower distribution. The frame is provided with an installation cavity located below the movable mold plate, and a clamping drive member and a plurality of rapid clamping drive members arranged around the outer periphery of the clamping drive member are accommodated in the installation cavity. The rapid clamping drive member drives the connected movable mold plate to close or open the movable mold plate with the fixed mold plate. The clamping drive member is used to clamp the movable mold plate when the movable mold plate is closed with the fixed mold plate, thereby improving the applicability of the mold. However, since the frame is an integrated design, the frame is subjected to eccentric loads during the clamping process, resulting in an increased risk of deformation of the frame structure and shortening the service life of the frame. The frame cannot be replaced. When the deformation of the frame reaches a critical state, it will cause the frame to fail and the clamping mechanism to be scrapped, thereby causing production stagnation and reducing production efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a column-free clamping device and a compression molding device, which can increase the operating space of the column-free clamping device and reduce maintenance costs.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Column-less clamping device, including:

[0007] The fuselage unit includes a first support member, a second support member, and a first connecting member, wherein the first support member and the second support member are arranged in sequence in the vertical direction, the second support member is fixedly arranged, a first end of the first connecting member is fixedly connected to the first support member, a second end of the first connecting member passes through the second support member and is fixedly arranged, and the second support member is slidably connected to the first connecting member;

[0008] A mold opening and closing unit, wherein the mold opening and closing unit is fixedly arranged, and its output end can approach the second support member along the up and down direction, and can be slid and fixedly connected to the first support member through a locking unit, and a mold is placed between the output end of the mold opening and closing unit and the second support member. Along the up and down direction, the projection of the enclosed area of ​​the output end of the mold opening and closing unit on the second support member does not overlap with the projection of the enclosed area of ​​the first connecting member on the second support member.

[0009] Preferably, the body unit includes a third support member, the third support member is arranged below the second support member, the second end of the first connecting member is fixedly connected to the third support member, and the column-free mold locking device includes a mold locking unit, and the mold locking unit includes:

[0010] The mold locking assembly is arranged on the third support member and can drive the third support member to move along the up and down direction.

[0011] Preferably, the clamping unit further comprises:

[0012] A balancing assembly, the balancing assembly being fixedly disposed on the third support member. Along the front-to-back direction, the balancing assembly is located on one side of the first connecting member, and the output end of the mold clamping assembly and the mold opening and closing unit is located on the other side of the first connecting member;

[0013] A connecting assembly is fixedly connected to the first support member and the output end of the balancing assembly, and the second support member is slidably connected to the connecting assembly.

[0014] Preferably, the mold locking assembly is fixedly connected to the third support member, and the output end of the mold locking assembly is fixedly connected to the second support member.

[0015] Preferably, the mold opening and closing unit comprises:

[0016] a support assembly, the support assembly being fixedly connected to the second support member;

[0017] The driving assembly is arranged on the supporting assembly. The output end of the driving assembly is a pressing piece. Along the front-to-back direction, the first connecting piece and the pressing piece are located on opposite sides of the supporting assembly.

[0018] Preferably, the drive assembly comprises:

[0019] a mounting member, the mounting member being fixedly connected to the support assembly;

[0020] The mold opening and closing driving component is fixedly connected to the mounting component, and the output end of the mold opening and closing driving component is fixedly connected to the pressing component.

[0021] Preferably, the locking unit comprises:

[0022] a locking assembly, one end of which is disposed on the first support member, and the other end of which is fixedly connected to the output end of the mold opening and closing unit;

[0023] A locking driver is fixedly disposed on the first support member, and an output end of the locking driver is transmission-connected to the locking assembly and can fix one end of the locking assembly.

[0024] Preferably, two locking assemblies are provided, the two locking assemblies are spaced apart, the locking driver is in transmission connection with one end of the two locking assemblies, and the locking unit further comprises:

[0025] A linkage assembly is provided between the two locking assemblies and is fixedly connected to one end of each of the two locking assemblies. The linkage assembly can drive the two locking assemblies to be fixed synchronously.

[0026] Preferably, the mold opening and closing unit includes a support assembly fixedly connected to the second support member and a drive assembly provided on the support assembly, the output end of the drive assembly is a pressing member, and the column-free mold locking device further includes:

[0027] The first guide unit includes a guide rail and a slider that are slidably connected. The guide rail extends along the up-down direction. One of the guide rail and the slider is arranged on the supporting assembly, and the other is arranged on the pressing piece.

[0028] The compression molding equipment comprises an equipment body and the above-mentioned column-free mold locking device, wherein the column-free mold locking device is arranged on the equipment body.

[0029] Beneficial effects of the present invention:

[0030] The present invention provides a column-free clamping device and a molding device. The column-free clamping device includes a body unit and a mold opening and closing unit. The body unit includes a first support member, a second support member and a first connecting member. The first support member and the second support member are arranged in sequence along the up and down directions. The second support member is fixedly arranged. The first end of the first connecting member is fixedly connected to the first support member. The second end of the first connecting member passes through the second support member and is fixedly arranged. The second support member is slidably connected to the first connecting member. The mold opening and closing unit is fixedly arranged, and its output end can approach the second support member along the up and down directions, and can be slid and fixedly connected to the first support member through the locking unit. The mold is placed between the output end of the mold opening and closing unit and the second support member. Along the up and down directions, the projection of the enclosed area of ​​the output end of the mold opening and closing unit on the second support member does not overlap with the projection of the enclosed area of ​​the first connecting member on the second support member.

[0031] During mold closing, the mold is placed on the second support member, and the output end of the mold opening and closing unit approaches the second support member in the vertical direction until the upper and lower molds are initially aligned. Because the projection of the enclosed area of ​​the output end of the mold opening and closing unit on the second support member does not overlap with the projection of the enclosed area of ​​the first connecting member on the second support member, there is no other structure between the output end of the mold opening and closing unit and the second support member. This allows for unobstructed loading and unloading of the mold and maintenance, increasing operating space. The split design of the body unit facilitates targeted replacement of the body unit, reducing the maintenance cost of the column-free mold clamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a first axonometric view of a column-free mold clamping device provided by an embodiment of the present invention;

[0033] Figure 2 This is a second isometric view of the column-free mold clamping device provided by an embodiment of the present invention;

[0034] Figure 3 2 is a side view of a column-free mold clamping device provided by an embodiment of the present invention;

[0035] Figure 4 This is a third axonometric view of the column-free mold clamping device provided by an embodiment of the present invention;

[0036] Figure 5 is a fourth axonometric view of the column-free mold clamping device provided by an embodiment of the present invention;

[0037] Figure 6 2. It is a front view of a column-free mold clamping device provided by an embodiment of the present invention;

[0038] Figure 7 It is a top view of the column-free clamping device provided by an embodiment of the present invention.

[0039] In the picture:

[0040] 1. Body unit; 11. First support member; 12. Second support member; 13. Third support member; 14. First connecting member;

[0041] 2. Mold opening and closing unit; 21. Drive assembly; 22. Pressing part; 23. Support assembly;

[0042] 3. Clamping unit; 31. Clamping assembly; 311. Clamping member; 32. Balancing assembly; 321. Balancing member; 33. Connecting assembly; 331. Second connecting member;

[0043] 4. Locking unit; 41. Locking assembly; 42. Locking drive; 43. Linkage assembly;

[0044] 5. First guide unit; 51. Guide rail; 52. Slider; 6. Second guide unit; 61. Guide column; 62. Linear bearing. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0046] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0048] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0049] This embodiment provides a column-free clamping device, such as Figure 1 and Figure 2As shown, it includes a fuselage unit 1 and an opening and closing mold unit 2. The fuselage unit 1 includes a first support member 11, a second support member 12 and a first connecting member 14. Along the up and down directions, the first support member 11 and the second support member 12 are arranged in sequence, the second support member 12 is fixedly arranged, the first end of the first connecting member 14 is fixedly connected to the first support member 11, the second end of the first connecting member 14 passes through the second support member 12 and is fixedly arranged, the second support member 12 is slidably connected to the first connecting member 14, the opening and closing mold unit 2 is fixedly arranged, and its output end can be close to the second support member 12 along the up and down directions, and can be slid and fixedly connected to the first support member 11 through the locking unit 4, the output end of the opening and closing mold unit 2 is used to place the mold between the second support member 12, and along the up and down directions, the projection of the enclosed area of ​​the output end of the opening and closing mold unit 2 on the second support member 12 does not overlap with the projection of the enclosed area of ​​the first connecting member 14 on the second support member 12.

[0050] When performing the mold closing operation, the mold is placed on the second support member 12, and the output end of the mold opening and closing unit 2 approaches the second support member 12 in the up and down direction until the upper mold and the lower mold of the mold are initially fitted together. Since the projection of the enclosed area of ​​the output end of the mold opening and closing unit 2 on the second support member 12 does not overlap with the projection of the enclosed area of ​​the first connecting member 14 on the second support member 12, there is no other structure between the output end of the mold opening and closing unit 2 and the second support member 12, so that there is no obstruction during loading and unloading of the mold and maintenance, which increases the operating space, and the fuselage unit 1 adopts a split design, which facilitates targeted replacement of the fuselage unit 1, reducing the maintenance cost of the column-free clamping device. It should be noted that in this embodiment, the first end of the first connecting member 14 is connected to the first support member 11 by a nut. In other embodiments, the first end of the first connecting member 14 is welded to the first support member 11, or the first end of the first connecting member 14 is adhesively connected to the first support member 11, etc. This is not limited here.

[0051] Specifically, if Figure 1 and Figure 2 As shown, in this embodiment, the first support member 11 and the second support member 12 are both plate-shaped structures. In other embodiments, the first support member 11 and the second support member 12 are both block-shaped structures, or the first support member 11 is a support frame structure and the second support member 12 is a block-shaped structure, etc. This is not limited here.

[0052] Specifically, if Figure 1 and Figure 2 As shown, in this embodiment, the first connecting member 14 is a Corinthian column. Corinthian columns provide both high-strength support and high-precision guidance, while also offering strong adaptability, simple maintenance, and manageable costs. In other embodiments, the first connecting member 14 can also be a square column, etc. This is not a limitation.

[0053] Alternatively, as Figure 1 and Figure 2 As shown, in this embodiment, four first connecting members 14 are provided. The four first connecting members 14 are divided into two groups. The two groups of first connecting members 14 are arranged in parallel and spaced apart in the left-right direction, and the two first connecting members 14 in each group are arranged in parallel and spaced apart in the front-to-back direction. The provision of multiple first connecting members 14 improves the connection stability and force balance of the first support member 11, and enhances the sliding fit between the second support member 12 and the first connecting members 14. In other embodiments, there may be one, two, three, or five first connecting members 14, etc., without limitation.

[0054] Specifically, if Figure 1 and Figure 2 As shown, in this embodiment, the two sets of first connecting members 14 are symmetrically arranged along the center line of the front-to-back direction of the first support member 11. This ensures balanced force and avoids deformation of the component due to unilateral force. In other embodiments, the arrangement of the two sets of first connecting members 14 is not limited.

[0055] Alternatively, as Figure 1 and Figure 2 As shown, the fuselage unit 1 includes a third support member 13, which is arranged below the second support member 12, and the second end of the first connecting member 14 is fixedly connected to the third support member 13. The column-free clamping device includes a clamping unit 3, and the clamping unit 3 includes a clamping assembly 31. The clamping assembly 31 is arranged on the third support member 13 and can drive the third support member 13 to move in the up and down directions. By fixing the second end of the first connecting member 14 to the third support member 13, the first support member 11, the four first connecting members 14 and the third support member 13 form a rigid integral structure of the fuselage. At the same time, the clamping assembly 31 can drive the third support member 13 to move in the up and down directions. When the clamping assembly 31 drives the third support member 13 to move downward, and the output end of the mold opening and closing unit 2 is fixedly connected to the first support member 11 through the locking unit 4, since the first support member 11 forms a whole through the first connecting member 14 and the third support member 13, the first support member 11 moves downward at the same time, so that the upper end of the mold is subjected to the downward force of the output end of the mold opening and closing unit 2, and the lower end of the mold is subjected to the upward force of the second support member 12, thereby realizing the clamping operation of the mold and providing a stable structural foundation for subsequent injection molding. It should be noted that the third support member 13 is a support plate. In other embodiments, the third support member 13 can also be a support block or a support frame, etc. This is not limited here.

[0056] Specifically, if Figure 1 and Figure 2 As shown, in this embodiment, the second end of the first connecting member 14 is connected to the third supporting member 13 via a nut. In other embodiments, the second end of the first connecting member 14 is connected to the third supporting member 13 by welding, etc. This is not limited here.

[0057] Alternatively, as Figure 1 and Figure 2 As shown, the clamping assembly 31 is fixedly connected to the third support member 13, and the output end of the clamping assembly 31 is fixedly connected to the second support member 12. This arrangement enables power transmission between the third support member 13 and the second support member 12, avoiding the need for other support structures to achieve mold clamping, and helps to improve the integrity and independence of the column-free clamping device.

[0058] Specifically, if Figure 1 and Figure 2 As shown, in this embodiment, the mold clamping assembly 31 is threadedly connected to the third support member 13, and the output end of the mold clamping assembly 31 is threadedly connected to the second support member 12. In other embodiments, the mold clamping assembly 31 is snap-connected to the third support member 13, and the output end of the mold clamping assembly 31 is connected to the second support member 12 via a gear rack structure; or the mold clamping assembly 31 is adhesively connected to the third support member 13, and the output end of the mold clamping assembly 31 is connected to the second support member 12 via a cam structure, etc. This is not limited here.

[0059] Specifically, if Figure 1-Figure 4 As shown, in this embodiment, the mold clamping assembly 31 includes two mold clamping members 311, which are arranged parallel and spaced apart in the left-right direction. In other embodiments, the mold clamping assembly 31 may also include three or four mold clamping members 311, etc. It should be noted that the output end of the mold clamping member 311 is threadedly connected to the second support member 12. This is not a limitation. It should be noted that in this embodiment, the mold clamping member 311 is a mold clamping cylinder. In other embodiments, the mold clamping member 311 may also be a hydraulic cylinder, etc. This is not a limitation.

[0060] Alternatively, as Figure 1-Figure 4 As shown, the clamping unit 3 also includes a balancing component 32 and a connecting component 33. The balancing component 32 is fixedly arranged on the third support member 13. Along the front-to-back direction, the balancing component 32 is located on one side of the first connecting member 14. The clamping component 31 and the output end of the mold opening and closing unit 2 are located on the other side of the first connecting member 14. The connecting component 33 is fixedly connected to the first support member 11 and the output end of the balancing component 32, and the second support member 12 is slidably connected to the connecting component 33.

[0061] When the mold is clamped, the two clamping parts 311 are started at the same time, driving the second support part 12 to move upward. At this time, the second support part 12 is subjected to unilateral force. The balancing component 32 and the connecting component 33 are set, and along the front-to-back direction, the balancing component 32 and the clamping component 31 are located on both sides of the first connecting part 14. With the first connecting part 14 as the support point, a balancing force is applied to the first support part 11 from the side opposite to the clamping component 31. The magnitude of this force matches the unilateral force of the clamping component 311, and the direction is opposite, which just offsets the tilting trend, and finally keeps the first support part 11 in a horizontal state, eliminating the eccentric load of the first support part 11. The balancing component 32 eliminates the eccentric load of the first support member 11 by dynamically providing a balancing force, which not only ensures the movement accuracy during clamping, but also avoids wear or deformation of the first support member 11 or the connecting component 33 due to long-term eccentric force. The connecting component 33 not only provides a sliding guide for the second support member 12, but also shares part of the load through its own rigidity, and cooperates with the balancing component 32 to more stably offset the eccentric load and avoid deformation of the structure due to uneven force.

[0062] Specifically, if Figure 3 As shown, in this embodiment, the first connector 14 is located in the middle of the balancing assembly 32 and the clamping assembly 31 along the front-to-back direction. When the balancing assembly 32 and the clamping assembly 31 interact, the centrally located first connector 14 can more evenly distribute stress and reduce local wear. The symmetrical layout also helps improve the stability of the overall structure. In other embodiments, the first connector 14 can be located in the middle of the balancing assembly 32 and the clamping assembly 31 along the front-to-back direction, near the balancing assembly 32, or near the clamping assembly 31, etc. This is not a limitation.

[0063] Specifically, if Figure 1-Figure 4 As shown, in this embodiment, the balancing assembly 32 includes two balancing members 321. In other embodiments, the balancing assembly 32 includes three balancing members 321, four balancing members 321, and so on. This is not a limitation. It should be noted that in this embodiment, the balancing member 321 is a clamping cylinder. In other embodiments, the balancing member 321 is a hydraulic cylinder, and so on. This is not a limitation.

[0064] Specifically, in this embodiment, the connecting assembly 33 includes two second connecting members 331 , one end of each of which is screwed to the output end of the balancing member 321 , and the other end of each of the second connecting members 331 is threadedly connected to the first support member 11 . In other embodiments, the connecting assembly 33 includes three or four second connecting members 331 , etc. This is not a limitation. It should be noted that in this embodiment, the second connecting member 331 is a piston rod. In other embodiments, the second connecting member 331 may also be a guide bar, etc. This is not a limitation.

[0065] Specifically, if Figure 1-Figure 4 As shown, in this embodiment, the two clamping members 311 and the two balancing members 321 are distributed at the four corners of the third support member 13. This four-corner distribution allows for more uniform force application and ensures stable operation of the overall structure. In other embodiments, the two clamping members 311 and the two balancing members 321 can be distributed at other locations on the third support member 13. This is not a limitation.

[0066] Alternatively, as Figure 1 As shown, the mold opening and closing unit 2 includes a support assembly 23 and a drive assembly 21. The support assembly 23 is fixedly connected to the second support member 12, and the drive assembly 21 is arranged on the support assembly 23. The output end of the drive assembly 21 is a pressing member 22. In the front-to-back direction, the first connecting member 14 and the pressing member 22 are located on opposite sides of the support assembly 23. The above arrangement, with the support assembly 23 as the intermediate reference, the first connecting member 14 is located on the rear side of the support assembly 23, and the pressing member 22 is located on the front side of the support assembly 23, so that the first connecting member 14 avoids the operating area of ​​the mold, that is, the area where the pressing member 22 moves in the up and down direction. This allows for unobstructed loading and unloading of the mold and maintenance, a larger operating space, and optimized space utilization. It should be noted that in this embodiment, the support assembly 23 is welded to the second support member 12. In other embodiments, the support assembly 23 is threadedly connected to the second support member 12, etc. This is not limited here.

[0067] Specifically, in this embodiment, the support assembly 23 is a square frame structure formed by welding four I-beams. In other embodiments, the support assembly 23 is a U-shaped structure formed by welding three support blocks, and the bottom end of the U-shaped structure is fixedly connected to the second support member 12, etc. This is not limited here.

[0068] More specifically, Figure 1As shown, in this embodiment, along the vertical direction, the projection of the enclosed area of ​​the four first connecting members 14 on the second support member 12 and the projection of the pressing member 22 on the second support member 12 are located on both sides of the support assembly 23 along the front-to-back direction. In other embodiments, along the vertical direction, the projection of the enclosed area of ​​the four first connecting members 14 on the second support member 12 and the projection of the support assembly 23 on the second support member 12 do not overlap, the projection of the pressing member 22 on the second support member 12 and the projection of the support assembly 23 on the second support member 12 partially overlap, and so on. This is not a limitation.

[0069] Specifically, if Figure 1 and Figure 4 As shown, in this embodiment, the drive assembly 21 includes a mounting member and a mold opening and closing drive member, the mounting member is fixedly connected to the support assembly 23, the mold opening and closing drive member is threadedly connected to the mounting member, and the output end of the mold opening and closing drive member is fixedly connected to the pressing member 22, and the mold opening and closing drive member can drive the pressing member 22 to move back and forth in the up and down directions. The action of the mold opening and closing drive member drives the pressing member 22 to move up and down, thereby realizing the opening or closing of the mold. It should be noted that, in this embodiment, the mounting member is a mounting frame. In other embodiments, the mounting member is a support mounting block or a mounting plate, etc. This is not limited here. Specifically, in this embodiment, the mounting member is welded to the support assembly 23. In other embodiments, the mounting member is snap-connected to the support assembly 23, etc. This is not limited here.

[0070] Specifically, if Figure 1 and Figure 4 As shown, in this embodiment, the mold opening and closing drive member is a hydraulic cylinder. In other embodiments, the mold opening and closing drive member can also be a pneumatic cylinder, a linear motor, etc. This is not limiting. More specifically, in this embodiment, the output end of the mold opening and closing drive member is threadedly connected to the pressing member 22. In other embodiments, the output end of the mold opening and closing drive member is plug-connected to the pressing member 22, etc. This is not limiting.

[0071] Specifically, if Figure 1 and Figure 4 As shown, two mounting members and two mold opening and closing drive members are provided, and the two mounting members and the mold opening and closing drive members are arranged on both sides of the support assembly 23 in the left-right direction, and the output ends of the two mold opening and closing drive members are both threadedly connected to the pressing member 22. The above arrangement enables the mold opening and closing drive members on both sides to generate symmetrical and synchronous driving forces when the pressing member 22 approaches the second support member 12, which can effectively prevent the pressing member 22 from tilting or deflecting due to unilateral driving, ensure that the pressing member 22 always maintains parallelism with the second support member 12, and ensure that all parts of the pressing member 22 are subjected to uniform force during the approach process, thereby ensuring the accuracy and stability of the pressing action.

[0072] Alternatively, as Figure 2 and Figure 3 As shown, in this embodiment, the mold opening and closing unit 2 includes a support assembly 23 fixedly connected to the second support member 12 and a drive assembly 21 provided on the support assembly 23. The output end of the drive assembly 21 is the pressing member 22. The column-free mold locking device also includes a first guide unit 5, including a guide rail 51 and a slider 52 that are slidably connected. The guide rail 51 extends in the up-down direction. One of the guide rail 51 and the slider 52 is provided on the support assembly 23, and the other of the two is provided on the pressing member 22. The slidably connected guide rail 51 and the slider 52 serve as guides for the pressing member 22 to move toward the second support member 12. Firstly, they guide the pressing member 22 to move along a preset trajectory to ensure the stability and smoothness of the pressing member 22 during the mold closing process. Secondly, they prevent the mold from being uneven, which may cause the output end of the mold opening and closing drive member to deviate from the path, thereby causing uneven pressing force or mold closing errors.

[0073] Specifically, if Figure 2 and Figure 3 As shown, in this embodiment, the guide rail 51 is fixedly connected to the support assembly 23, and the slider 52 is disposed on the pressing member 22. In other embodiments, the guide rail 51 is fixedly connected to the pressing member 22, and the slider 52 is disposed on the support assembly 23. This is not limited here.

[0074] It should be noted that in this embodiment, the guide rail 51 is threadedly connected to the support assembly 23, and the slider 52 is welded to the pressing member 22. In other embodiments, the guide rail 51 is snap-connected to the support assembly 23, and the slider 52 is integrally formed with the pressing member 22, etc. This is not a limitation.

[0075] Alternatively, as Figure 1 and Figure 3 As shown, in this embodiment, the column-less mold clamping device further includes a second guide unit 6, including a guide column 61 and a linear bearing 62 that are slidably connected. The guide column 61 extends in the vertical direction. One of the guide column 61 and the linear bearing 62 is disposed on the first support member 11, and the other is disposed on the pressing member 22. When the mold opening and closing drive member drives the pressing member 22 to move in the vertical direction, the presence of the guide column 61 and the linear bearing 62 further ensures that the pressing member 22 does not deviate during the vertical movement, thereby ensuring the accuracy of the mold opening and closing movements. The guide column 61 and the linear bearing 62 serve as the guide structure of the column-less mold clamping device, thereby preventing a decrease in guide stability.

[0076] Specifically, if Figure 2 and Figure 3 As shown, in this embodiment, the guide post 61 is fixedly connected to the pressing member 22, and the linear bearing 62 is provided on the first support member 11. In other embodiments, the guide post 61 is fixedly connected to the first support member 11, and the linear bearing 62 is provided on the pressing member 22. This is not limited here.

[0077] Specifically, in this embodiment, the guide post 61 is threadedly connected to the pressing member 22, and the linear bearing 62 is embedded in the first support member 11. In other embodiments, the guide post 61 is welded to the pressing member 22, and the linear bearing 62 is embedded in the first support member 11, etc. This is not a limitation.

[0078] Alternatively, as Figure 5-Figure 7 As shown, in this embodiment, the locking unit 4 includes a locking drive 42 and two locking components 41 arranged at intervals along the left-right direction, one end of the two locking components 41 is arranged on the first support member 11, and the other end of the locking component 41 is fixedly connected to the pressing member 22, and the locking drive 42 is arranged between the two locking components 41 along the left-right direction. The locking drive 42 includes two output ends arranged opposite to each other along the left-right direction, the first output end of the locking drive 42 is transmission-connected to one end of one of the locking components 41, and the second output end of the locking drive 42 is transmission-connected to one end of the other locking component 41. The mold opening and closing drive is activated, driving the pressing part 22 to move toward the second support 12. When the upper mold and the lower mold of the mold are initially fitted together, the locking drive 42 is activated and simultaneously fixes one end of the locking assembly 41 so that it no longer moves, thereby maintaining the position of the pressing part 22 and the first support 11. The above-mentioned drive-fixing process achieves position locking between the pressing part 22 and the first support 11, realizes locking of the key directions of the pressing part 22, and improves the flexibility of the column-free mold locking device. In other embodiments, the locking unit 4 is provided with a locking assembly 41, one end of the locking assembly 41 is provided on the first support 11, and the other end of the locking assembly 41 can be fixedly connected to the output end of the mold opening and closing unit 2, the locking drive 42 is fixedly provided on the first support 11, and the output end of the locking drive 42 is transmission-connected to one end of the locking assembly 41 and can fix one end of the locking assembly 41, or the locking unit 4 is provided with three locking assemblies 41, etc. This is not limited here. It should be noted that in this embodiment, one output end of the locking driver 42 is connected to one end of one locking assembly 41 via a connecting rod, and the other output end of the locking driver 42 is connected to one end of the other locking assembly 41 via a pin. In other embodiments, both output ends of the locking driver 42 are fixedly connected to one end of two locking assemblies 41, and so on. This is not a limitation.

[0079] Specifically, in this embodiment, the locking drive member 42 is a cylinder. In other embodiments, the locking drive member 42 can also be a linear motor or a bidirectional cylinder, etc. This is not limited here.

[0080] Specifically, if Figure 5-Figure 7As shown, in this embodiment, the locking assembly 41 is a combination of a brake nut and a brake screw. Since the structure and operating principle of the brake nut and brake screw are known in the art, they are not described in detail here. In other embodiments, the locking assembly 41 may also be a combination of a wedge block and a column with a wedge-shaped groove, or a locking pin and a locking column with multiple spaced-apart locking holes, etc. This is not a limitation.

[0081] Specifically, if Figure 5-Figure 7 As shown, two locking assemblies 41 are provided, and the two locking assemblies 41 are spaced apart in the left-right direction. The locking driver 42 is drivingly connected to one end of the two locking assemblies 41. The locking unit 4 also includes a linkage assembly 43, which is provided between the two locking assemblies 41 and is rotationally connected to one end of the two locking assemblies 41. The linkage assembly 43 can drive the two locking assemblies 41 to be fixed synchronously. The provision of the linkage assembly 43 can ensure the consistency of the operation of the two locking assemblies 41, thereby improving the working stability and reliability of the locking unit 4.

[0082] Specifically, in this embodiment, linkage assembly 43 includes a linkage disk, a first linkage rod, and a second linkage rod. The first linkage rod is rotatably connected to the linkage disk and one of the brake nuts, respectively, while the second linkage rod is rotatably connected to the linkage disk and the other brake nut, respectively. This allows the first and second linkage rods to smoothly transmit torque under the action of the linkage disk, ensuring linkage between the first and second linkage rods and stable drive of the two brake nuts during synchronous operation. In other embodiments, linkage assembly 43 may also employ a gear linkage, a gear-double-rack mechanism, or a connecting rod mechanism, etc., without limitation herein.

[0083] This embodiment also provides a compression molding device, comprising a device body and a column-free mold clamping device, which is disposed on the device body. The column-free mold clamping device allows for unobstructed loading and unloading of molds and maintenance, increasing operating space and facilitating targeted replacement of the body unit 1, thereby reducing maintenance costs.

[0084] The following combination Figure 1-Figure 7 The working principle of the column-free clamping device is explained:

[0085] When performing the mold locking operation, the mold is placed on the second support member 12, the mold opening and closing drive member is started, and drives the pressing member 22 to move downward until the upper mold and the lower mold of the mold are initially fitted together, and then the two mold locking members 311 are started to drive the first support member 11 and the third support member 13 to move downward relative to the second support member 12, and at the same time the two balancing members 321 are started to balance the eccentric load of the mold locking member 311 on the first support member 11 through the second connecting member 331 to adjust the mold. During this period, the locking drive member 42 is not started, and the brake nut releases the brake screw. After the mold adjustment is completed, the locking drive member 42 is started to drive the brake nut to fix the locking brake screw, and then the second support member 12 and the pressing member 22 jointly squeeze the mold from the top and bottom of the mold to perform the mold locking operation.

[0086] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Column-less clamping device, characterized in that: include: A fuselage unit (1) comprises a first support member (11), a second support member (12) and a first connecting member (14); the first support member (11) and the second support member (12) are arranged in sequence along the up-down direction; the second support member (12) is fixedly arranged; a first end of the first connecting member (14) is fixedly connected to the first support member (11); a second end of the first connecting member (14) passes through the second support member (12) and is fixedly arranged; and the second support member (12) is slidably connected to the first connecting member (14); A mold opening and closing unit (2) is fixedly arranged, and its output end can approach the second support member (12) along the up-down direction, and can be slidably and fixedly connected to the first support member (11) through a locking unit (4); a mold is placed between the output end of the mold opening and closing unit (2) and the second support member (12); along the up-down direction, a projection of an enclosed area of ​​the output end of the mold opening and closing unit (2) on the second support member (12) does not overlap with a projection of an enclosed area of ​​the first connecting member (14) on the second support member (12).

2. The column-free clamping device according to claim 1, characterized in that: The body unit (1) includes a third support member (13), the third support member (13) is arranged below the second support member (12), the second end of the first connecting member (14) is fixedly connected to the third support member (13), and the column-free mold locking device includes a mold locking unit (3), and the mold locking unit (3) includes: A mold locking assembly (31) is provided on the third support member (13) and is capable of driving the third support member (13) to move along the up-down direction.

3. The column-free mold clamping device according to claim 2, characterized in that: The clamping unit (3) further comprises: a balancing assembly (32), the balancing assembly (32) being fixedly disposed on the third support member (13), and being located on one side of the first connecting member (14) in the front-to-back direction, and the output end of the mold clamping assembly (31) and the mold opening and closing unit (2) being located on the other side of the first connecting member (14); A connecting assembly (33) is fixedly connected to the first support member (11) and the output end of the balancing assembly (32), and the second support member (12) is slidably connected to the connecting assembly (33).

4. The column-free clamping device according to claim 2, characterized in that: The mold locking assembly (31) is fixedly connected to the third support member (13), and the output end of the mold locking assembly (31) is fixedly connected to the second support member (12).

5. The column-free mold clamping device according to claim 1, characterized in that: The mold opening and closing unit (2) comprises: a support assembly (23), the support assembly (23) being fixedly connected to the second support member (12); A driving assembly (21) is arranged on the supporting assembly (23); an output end of the driving assembly (21) is a pressing piece (22); and along the front-back direction, the first connecting piece (14) and the pressing piece (22) are located on opposite sides of the supporting assembly (23).

6. The column-free mold clamping device according to claim 5, characterized in that: The driving assembly (21) comprises: a mounting member, the mounting member being fixedly connected to the support assembly (23); A mold opening and closing driving component is fixedly connected to the mounting component, and a pressing component (22) is fixedly connected to the output end of the mold opening and closing driving component.

7. The column-free mold clamping device according to any one of claims 1 to 6, characterized in that: The locking unit (4) comprises: A locking assembly (41), one end of the locking assembly (41) is arranged on the first support member (11), and the other end of the locking assembly (41) can be fixedly connected to the output end of the mold opening and closing unit (2); A locking drive member (42) is fixedly arranged on the first support member (11), and an output end of the locking drive member (42) is transmission-connected to one end of the locking assembly (41) and can fix one end of the locking assembly (41).

8. The column-free mold clamping device according to claim 7, characterized in that: The locking assemblies (41) are provided with two, the two locking assemblies (41) are spaced apart, the locking drive member (42) is in transmission connection with the two locking assemblies (41), and the locking unit (4) further comprises: A linkage assembly (43) is provided between the two locking assemblies (41) and is fixedly connected to one end of each of the two locking assemblies (41). The linkage assembly (43) can drive the two locking assemblies (41) to be fixed synchronously.

9. The column-free mold clamping device according to any one of claims 1 to 6, characterized in that: The mold opening and closing unit (2) comprises a support assembly (23) fixedly connected to the second support member (12) and a drive assembly (21) arranged on the support assembly (23), the output end of the drive assembly (21) is a pressing member (22), and the column-free mold locking device further comprises: The first guide unit (5) includes a guide rail (51) and a slider (52) that are slidably connected, wherein the guide rail (51) extends along the up-down direction, and one of the guide rail (51) and the slider (52) is arranged on the supporting assembly (23), and the other of the two is arranged on the pressing part (22).

10. Compression molding equipment, characterized in that It comprises an equipment body and a column-free mold locking device as described in any one of claims 1 to 9, wherein the column-free mold locking device is arranged on the equipment body.

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