Multi-cylinder direct-locking type mold locking mechanism

Abstract

The utility model discloses a multi-cylinder direct-locking type mould locking mechanism, which comprises a mould plate assembly and a guide driving direct-locking integrated mould cylinder unit, the mould cylinder unit comprises a plurality of groups of mould cylinder assemblies, each group of mould cylinder assembly comprises a mould cylinder sleeve assembly and a direct-locking type mould cylinder machine column, and the direct-locking type mould cylinder machine column adopts a machine column mandrel integrated structure. According to the multi-cylinder direct-locking type mold locking mechanism, the upper mold plate is driven to move up and down through direct driving of the direct-locking type mold cylinder columns so as to carry out mold locking and opening operation, continuous and stable operation of an injection molding machine can be effectively guaranteed, integration of a plurality of parts is achieved, the number of the parts is reduced, deviation caused by assembly is reduced, and the production efficiency is improved. The rigidity of the whole machine is improved, the direct locking type mold cylinder columns are adopted, a lower cylinder mold plate does not need to be arranged, the space of the lower end of the machine is saved, the overall height of the workbench can be reduced, and therefore the operation height is reduced, the installation and use range of the whole machine is wider, and the lightweight design of the whole machine is achieved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and in particular to a multi-cylinder direct-lock mold clamping mechanism. Background Technology

[0002] The clamping mechanism of existing vertical injection molding machines is generally controlled by a mold cylinder, and the upper mold plate and the lower mold plate lock the mold cylinder column. The mold cylinder sleeve is connected to the center of the lower plate of the lower mold plate, and the mold cylinder spindle is connected to the center of the lower mold plate. The mold cylinder connects to the lower mold plate and drives the column, thereby driving the upper mold plate to perform the mold opening and closing action.

[0003] To ensure the strength of the parts, the lower cylinder template needs to have sufficient thickness, which significantly increases the weight of the entire machine and occupies a large space. This, in turn, increases the height of the worktable, making operation extremely inconvenient. More importantly, it requires high assembly precision; assembly errors will affect the performance of the entire machine.

[0004] Therefore, in order to address the above problems, there is an urgent need to develop a clamping mechanism that can reduce the weight of the entire machine, reduce assembly deviations, increase the rigidity of the entire machine, save costs, save space at the bottom of the machine, reduce operating height, and at the same time ensure the continuous and stable operation of the injection molding machine. Utility Model Content

[0005] The purpose of this invention is to solve the problems of existing vertical injection molding machines that require a single mold cylinder in the center to drive the mold locking and opening operations, and a machine column between the upper and lower mold plates for guidance. In order to realize the mold cylinder's mold locking and opening functions, a lower mold plate is also required, which leads to a large machine weight, large space occupation, increased operating height, inconvenient operation, and assembly errors that can easily affect the stability of the injection molding machine. The invention provides a multi-cylinder direct-locking mold locking mechanism, which can reduce the weight of the machine, achieve lightweight design, reduce assembly deviations, increase the rigidity of the machine, save costs, save space at the bottom of the machine, reduce operating height, and ensure the continuous and stable operation of the injection molding machine.

[0006] The technical solution adopted by this utility model to achieve its invention objective is as follows: a multi-cylinder direct-lock mold locking mechanism, including a template assembly and a guide-drive direct-lock integrated mold cylinder unit. The mold cylinder unit includes multiple sets of mold cylinder assemblies, and each set of mold cylinder assemblies includes a mold cylinder sleeve assembly and a direct-lock mold cylinder column. The direct-lock mold cylinder column adopts an integrated column-spindle structure. This multi-cylinder direct-lock mold clamping mechanism, through a completely new design of existing mold cylinder clamping mechanisms, uses multiple sets of mold cylinder components to directly perform mold clamping and opening operations. It eliminates the need for separate machine columns, directly driving the upper mold platen up and down for mold clamping and opening. The direct-lock mold cylinder machine column adopts an integrated machine column and mandrel structure, integrating the machine column and mandrel into one unit. On one hand, the direct-lock mold cylinder machine column acts as a mandrel, working with the mold cylinder sleeve assembly to directly drive the upper mold platen up and down; on the other hand, it acts as a guide. Using multiple sets of mold cylinder components for direct-lock mold clamping effectively ensures the continuous and stable operation of the injection molding machine, preventing instability from affecting the overall machine performance and lifespan. The integration of multiple components reduces the number of parts, minimizes assembly deviations, and increases the rigidity of the entire machine. Furthermore, the use of direct-lock mold cylinder machine columns eliminates the need for a lower mold platen, saving space at the bottom of the machine and lowering the overall height of the worktable, thus reducing the operating height and broadening the machine's installation and application range. It also achieves a lightweight design for the entire machine.

[0007] Preferably, the direct-lock mold cylinder column includes an integrally formed mandrel section and a column section. A piston is mounted on the mandrel section, and a locking external thread is provided on the upper part of the column section. The mandrel section, used to cooperate with the mold cylinder sleeve assembly to achieve high-pressure mold locking and opening operations, and the column section, used for guiding while directly transmitting force coaxially, directly transmits the mold locking and opening force to the upper mold platen, directly driving the upper mold platen's up-and-down movement. Direct transmission of the mold locking and opening force to the upper mold platen prevents force loss, ensuring that the mold locking and opening force remains consistent with the set value, resulting in smoother machine operation.

[0008] Preferably, the mold cylinder sleeve assembly includes a mold cylinder sleeve and a mold cylinder front cover. The mold cylinder sleeve has a piston chamber inside, and the mold cylinder front cover is a sealing cap located on the upper end of the mold cylinder sleeve. The mold cylinder sleeve assembly mainly includes a mold cylinder sleeve and a mold cylinder front end. The piston chamber inside the mold cylinder sleeve is for cooperating with the piston to transmit the locking and opening force for the mold. The mold cylinder front cover facilitates the sliding fit between the direct-lock mold cylinder stator and the mold cylinder sleeve, and also facilitates the fixed connection with the lower mold plate.

[0009] Preferably, the front cover of the mold cylinder is provided with a sliding hole for the machine column mandrel. The sliding hole for the machine column mandrel on the front cover of the mold cylinder facilitates the up-and-down sliding of the machine column in the direct-lock mold cylinder inside the mold cylinder sleeve.

[0010] Preferably, the mold cylinder front cover includes an integrally formed flange-type cover body and a cover body sealing connection protrusion located at the center of the cover body and protruding upwards. A cover body sealing element is provided inside the cover body sealing connection protrusion. The flange-type cover body of the mold cylinder front cover facilitates both sealing connection to the mold cylinder sleeve and fixing connection to the lower template. The cover body sealing connection protrusion is designed to facilitate connection to the lower template while simultaneously allowing for the installation of the cover body sealing element, thereby achieving a sliding sealing fit with the direct-lock mold cylinder machine column.

[0011] Preferably, the front cover of the mold cylinder is provided with an oil pump flange for connecting an external oil supply pump. The oil pump flange is provided to facilitate connection to an external oil supply pump, allowing for high-pressure mold locking and opening operations of the mold cylinder assembly during use.

[0012] Preferably, the mold cylinder liner assembly further includes a mold cylinder rear cover, which is sealed to the lower end of the mold cylinder liner or is integrally formed with the mold cylinder liner. The mold cylinder liner assembly may also include a mold cylinder rear cover, which serves a connecting and positioning function. It can be separate from the mold cylinder liner or integrally formed with it.

[0013] Preferably, the template assembly includes an upper template and a lower template. Multiple sets of mold cylinder liner assemblies are arranged in a balanced structure below the lower template and fixedly connected to it. The direct-locking mold cylinder column passes through the lower template and is fixedly connected to the upper template, driving the upper template to move up and down. The template assembly does not have a lower template, only upper and lower templates, which saves space at the bottom of the machine and reduces the overall weight. The multiple sets of mold cylinder liner assemblies are arranged in a balanced structure below the lower template, and the locking and opening force is directly transmitted through multiple direct-locking mold cylinder columns to drive the upper template to move up and down, making the overall machine movement more stable.

[0014] Preferably, the lower mold plate is provided with a sliding hole for the machine column corresponding to the cylinder sleeve assembly. A cylinder head positioning and sealing hole is coaxially provided at the lower end of the sliding hole, and a machine column guide is connected to the upper end of the sliding hole. The sliding hole on the lower mold facilitates the up-and-down sliding of the machine column in the direct-locking mold cylinder, while the cylinder head positioning and sealing hole facilitates the connection and positioning of the front cover of the mold cylinder.

[0015] Preferably, the upper template is provided with upper template connection holes corresponding to multiple sets of mold cylinder assemblies. The upper template connection holes are provided to facilitate the connection and fixation of the direct-lock mold cylinder machine column with the upper template.

[0016] The beneficial effects of this utility model are as follows: This multi-cylinder direct-lock mold clamping mechanism directly drives the upper mold platen to move up and down for mold clamping and opening operations through the direct-lock mold cylinder column. This effectively ensures the continuous and stable operation of the injection molding machine and prevents instability from affecting the overall machine performance and lifespan. The integrated structure of the direct-lock mold cylinder column and mandrel achieves the integration of multiple components, reducing the number of parts, minimizing assembly deviations, and increasing the rigidity of the entire machine. Furthermore, the use of a direct-lock mold cylinder column eliminates the need for a lower mold platen, saving space at the bottom of the machine and lowering the overall height of the worktable, thereby reducing the operating height and expanding the machine's installation and application range. It also achieves a lightweight design for the entire machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a multi-cylinder direct-lock mold-locking mechanism of this utility model.

[0018] Figure 2 is a structural schematic diagram of the multi-cylinder direct-lock mold-locking mechanism of this utility model from another angle.

[0019] Figure 3 is a cross-sectional view of the multi-cylinder direct-lock mold-locking mechanism of this utility model.

[0020] Figure 4 is a structural schematic diagram of the mold cylinder assembly in this utility model.

[0021] Figure 5 This is an exploded structural diagram of the mold cylinder assembly in this utility model.

[0022] Figure 6 This is a cross-sectional view of the mold cylinder assembly in this utility model.

[0023] Figure 7 This is a structural schematic diagram of a machine column guide component in this utility model.

[0024] Figure 8 This is a cross-sectional view of the machine column guide component in this utility model.

[0025] Figure 9 This is a schematic diagram of a multi-cylinder direct-lock mold-locking mechanism in Embodiment 2.

[0026] In the diagram: 1. Template component; 11. Upper template; 111. Upper template body; 112. Upper template reinforcement.

[0027] 12. Lower template; 13. Sliding hole of machine column; 14. Positioning and sealing hole of cylinder head; 15. Positioning hole; 16. Guide hole; 17. Center hole; 18. Reinforcing rib; 19. Connection hole of upper template.

[0028] 2. Mold cylinder unit;

[0029] 3. Mold cylinder liner assembly; 31. Mold cylinder liner; 32. Mold cylinder front cover; 33. Mold cylinder rear cover; 34. Machine column spindle sliding hole; 35. Piston chamber; 36. Cover body; 37. Cover body sealing connection protrusion.

[0030] 4. Mold cylinder assembly;

[0031] 5. Direct-lock type mold cylinder column; 51. Mandrel section; 52. Column section; 53. Piston; 54. Column connecting end; 55. Column sliding section; 56. External thread.

[0032] 6. Cover seal; 7. Oil pump flange;

[0033] 8. Column guide component; 81. Guide positioning part; 82. Guide flange; 83. Guide part;

[0034] 9. Turntable spindle; 10. Machine column nut. Detailed Implementation

[0035] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0036] Example 1:

[0037] exist Figure 1 , Figure 2 , Figure 3 In the embodiment shown, a multi-cylinder direct-lock mold locking mechanism includes a template assembly 1 and a guide-drive direct-lock integrated mold cylinder unit 2. The mold cylinder unit 2 includes multiple sets of mold cylinder assemblies 4. Each set of mold cylinder assemblies 4 includes a mold cylinder sleeve assembly 3 and a direct-lock mold cylinder machine column 5. The direct-lock mold cylinder machine column 5 adopts an integrated machine column mandrel structure.

[0038] The template assembly 1 includes only the upper template 11 and the lower template 12, without a lower cylinder template. Multiple sets of mold cylinder liner assemblies 3 are arranged in a balanced structure below the lower template 12 and are fixedly connected to the lower template 12. The direct-locking mold cylinder column 5 passes through the lower template 12 and is fixedly connected to the upper template 11, driving the upper template 11 to move up and down.

[0039] like Figure 5 , Figure 6 As shown, the direct-locking mold cylinder column 5 includes an integrally formed mandrel section 51 and column section 52. A piston 53 is provided on the mandrel section 51, and a locking external thread 56 is provided on the upper part of the column section 52.

[0040] The number of multiple mold cylinder assemblies 4 can be set according to actual production needs. They are typically designed based on the shape of the upper mold plate and the clamping and opening forces.

[0041] In this embodiment, four sets of mold cylinder assemblies are used to directly perform mold locking and opening operations through four direct-lock mold cylinder machine columns 5. No separate machine columns are set up. The upper mold plate 11 is driven to move up and down through the direct-lock mold cylinder machine columns 5 to perform mold locking and opening operations.

[0042] The direct-lock mold cylinder column 5 adopts an integrated column and mandrel structure, that is, the column and mandrel are integrated into one. On the one hand, the direct-lock mold cylinder column works with the mold cylinder sleeve assembly to realize the driving function and directly drive the upper mold plate to move up and down. On the other hand, it serves as a guide column. By using multiple sets of mold cylinder assemblies for direct-lock mold locking operation, it can effectively ensure the continuous and stable operation of the injection molding machine and will not affect the overall performance and life of the machine due to unstable operation.

[0043] like Figure 4 As shown, the mold cylinder sleeve assembly 3 includes a mold cylinder sleeve 31 and a mold cylinder front cover 32. The mold cylinder sleeve 31 has a piston chamber 35 inside, and the mold cylinder front cover is a sealing cap on the upper end of the mold cylinder sleeve 31. The mold cylinder front cover 32 is provided with an organic column mandrel sliding hole 34.

[0044] The mold cylinder front cover 32 includes an integrally formed flange-type cover body 36 and a cover body sealing connection protrusion 37 located at the center of the cover body and protruding upward. The cover body sealing connection protrusion 37 is provided with a cover body sealing element 6. The cover body sealing element 6 is provided with multiple different types of sealing elements to achieve an effective sliding sealing fit with the direct-lock mold cylinder column.

[0045] The front cover 32 of the mold cylinder is provided with an oil pump flange 7 for connecting an external oil supply pump.

[0046] The mold cylinder sleeve assembly 3 further includes a mold cylinder rear cover 33, which is sealed to the lower end of the mold cylinder sleeve, or the mold cylinder rear cover 33 and the mold cylinder sleeve 31 are integrally formed. In this embodiment, the mold cylinder rear cover 33 and the mold cylinder sleeve 31 are separately arranged.

[0047] The lower template 12 is provided with a sliding hole 13 for the cylinder sleeve assembly 3. The lower end of the sliding hole 13 is provided with a cylinder head positioning and sealing hole 14 on the same axis. The upper end of the sliding hole 13 is connected to the cylinder guide 8.

[0048] The upper template 11 is provided with upper template connection holes 19 corresponding to multiple sets of mold cylinder assemblies.

[0049] In use, the size and specifications of the mold cylinder assembly are designed according to the needs of the vertical injection molding machine. The rear cover 33 of each mold cylinder sleeve assembly in the four sets of mold cylinder assemblies 3 is directly fixed to the corresponding injection unit position on the machine tool of the vertical injection molding machine. The end of the direct-locking mold cylinder stud 5 with piston 53 is set in the piston chamber 35 of the mold cylinder sleeve 31. The stud section 52 of the direct-locking mold cylinder stud 5 extends out of the mold cylinder front cover 32 and passes through the stud sliding hole 13 on the lower mold plate, then extends out of the lower mold plate 12, and finally passes through the upper mold plate connecting hole 19 on the upper mold plate 11, and is locked and positioned by the stud nut 10. At the same time, the mold cylinder front cover 32 and the lower mold plate 12 are fixedly connected as one piece by fasteners. Thus, the assembly of the entire multi-cylinder direct-locking mold clamping mechanism is realized.

[0050] When mold locking is required, oil is supplied to the piston chamber of the mold cylinder assembly via an oil pump, creating high pressure. The upper mold platen moves downward under the drive of the machine column spindle to achieve mold locking. During mold opening, the oil inside the piston chamber is discharged outward, and the machine column spindle drives the upper mold platen upward, completing the mold opening operation. The direct-lock mold cylinder machine column, in conjunction with the mold cylinder sleeve assembly, achieves high-pressure mold locking and opening operations, while also providing synchronous guidance. The integrated structure of the machine column spindle allows for direct coaxial transmission of the mold locking and opening force. This force is directly transmitted to the upper mold platen, directly driving its up-and-down movement. The direct transmission of the mold locking and opening force to the upper mold platen eliminates force loss, ensuring the force remains consistent with the set value and resulting in smoother machine operation.

[0051] Example 2:

[0052] exist Figure 9 In the embodiment shown, a multi-cylinder direct-lock mold clamping mechanism includes a template assembly 1 and a mold cylinder unit 2. The template assembly 1 includes only an upper template 11 and a lower template 12, and does not include a lower template.

[0053] The mold cylinder unit 2 includes multiple sets of mold cylinder assemblies 4, no longer using a single mold cylinder in conjunction with the lower mold plate to achieve mold locking. Instead, multiple sets of mold cylinder assemblies 4 directly drive the upper mold plate to achieve mold locking and opening movements through multiple mold cylinder machine columns. To achieve this mold locking method where multiple mold cylinder machine columns drive the upper mold plate, four sets of mold cylinder assemblies 4 are used in this embodiment.

[0054] Each set of mold cylinder assembly 4 includes a mold cylinder sleeve assembly 3 and a direct-lock mold cylinder column 5.

[0055] The mold cylinder sleeve assembly 3 mainly includes a mold cylinder sleeve 31 and a mold cylinder front cover 32. It also includes a mold cylinder rear cover 33. The mold cylinder rear cover 33 is used to seal the mold cylinder sleeve and facilitates fixed connection with the machine frame. This eliminates the need for a lower mold plate, saves lower space, reduces the height of the operating table, and facilitates operation.

[0056] In this embodiment, the mold cylinder rear cover 33 and the mold cylinder sleeve 31 are integrally formed, and the mold cylinder rear cover 33 is formed at the lower end of the mold cylinder sleeve.

[0057] The mold cylinder front cover 32 is sealed to the upper end of the mold cylinder sleeve 31, and an organic core shaft sliding hole 34 is provided on the mold cylinder front cover 32. A piston chamber 35 is provided inside the mold cylinder sleeve 31.

[0058] The mold cylinder front cover 32 includes an integrally formed flange-type cover body 36 and a cover body sealing connection protrusion 37 located at the center of the cover body and protruding upward. The cover body sealing connection protrusion 37 has a cover body seal 6 inside, used to achieve a sliding seal with the machine column spindle. The flange-type cover body 36 is fixedly connected to the upper end of the mold cylinder sleeve 31. In use, the cover body sealing connection protrusion 37 is embedded in the lower template 12 to achieve docking with the lower template 12, and is fixedly connected to the lower plate surface of the lower template 12 through the flange-type cover body 36.

[0059] The front cover 32 of the mold cylinder is provided with an oil pump flange 7 for connecting the oil supply pump.

[0060] The direct-lock mold cylinder column 5 adopts an integrated column-mandrel structure. The direct-lock mold cylinder column 5 includes an integrally formed mandrel section 51 and column section 52. The mandrel section 51 is located inside the piston chamber 35 of the mold cylinder sleeve 31, and a piston 53 is mounted on the mandrel section 51 to cooperate with the piston chamber 35. The column section 52 extends upward from the mandrel section 51 and includes a column connecting end 54 for fixed connection with the upper template 11 and a column sliding section 55 for upward and downward sliding. The column connecting end 54 and the column sliding section 55 are arranged in a stepped structure, and the column connecting end 54 is provided with external threads 56.

[0061] The lower template 12 has four machine column sliding holes 13 corresponding to the four sets of mold cylinder assemblies. A cylinder head positioning and sealing hole 14 is provided at the end of the machine column sliding hole 13 facing the lower surface of the lower template. In use, the cover sealing connection protrusion 37 is embedded inside the cylinder head positioning and sealing hole 14 to position the mold cylinder. A positioning hole 15 and a guide hole 16 are provided at the end of the machine column sliding hole facing the upper surface of the lower template. The positioning hole 15 and the guide hole 16 are coaxially aligned. The cylinder head positioning and sealing hole 14, positioning hole 15, and guide hole 16 are coaxially aligned with the machine column sliding hole 13. A machine column guide 8 is provided inside the guide hole 16.

[0062] like Figure 7 , Figure 8As shown, the machine column guide 8 includes an integrally formed guide positioning part 81, guide flange 82, and guide part 83. The guide positioning part 81 is configured to cooperate with the positioning hole 15. In use, the guide positioning part 81 is embedded inside the positioning hole 15. The guide flange 82 is disposed inside the guide hole 16 and is fixedly connected to the guide hole 16. The guide part 83 extends onto the upper plate surface of the lower template 12 to guide the straight-locking mold cylinder machine column 5. In this embodiment, the guide part 83 adopts a guide sleeve structure.

[0063] The lower template 12 has a central hole 17 at its center, and a turntable spindle 9 is provided inside the central hole 17. The lower plate surface of the lower template 12 is provided with a number of hollow reinforcing ribs 18 to enhance the strength of the lower template.

[0064] The upper template 11 is provided with upper template connection holes 19 corresponding to the four lower mold cylinder assemblies. The upper template connection holes 19 can be threaded holes or smooth holes, depending on actual needs.

[0065] In use, the machine column connecting end 54 is connected to the upper template connecting hole 19 on the upper template 11 and extends to the upper plate surface of the upper template, and then locked and fixed by the machine column nut 10.

[0066] Specifically, the upper template 11 is U-shaped in shape. The upper template 11 includes an upper template plate 111 and upper template reinforcements 112 disposed on both sides of the upper surface of the upper template plate 111. The upper template connecting holes 19 are respectively disposed at both ends of the upper template reinforcements 112.

[0067] In use, the size and specifications of the mold cylinder assembly are designed according to the needs of the vertical injection molding machine. The rear cover 33 of the mold cylinder in each of the four sets of mold cylinder assemblies 3 is directly fixed to the corresponding injection unit position on the machine tool of the vertical injection molding machine. The end of the direct-locking mold cylinder column 5 with piston 53 is set in the piston chamber 35 of the mold cylinder sleeve 31. The column section 52 of the direct-locking mold cylinder column 5 extends out of the mold cylinder front cover 32 and passes through the column sliding hole 13 on the lower platen, and then through the column guide 8. It then extends out of the lower platen 12 and finally passes through the upper platen connecting hole 19 on the upper platen 11, and is locked and positioned by the column nut 10. At the same time, the mold cylinder front cover 32 and the lower platen 12 are fixedly connected as one piece by fasteners. Thus, the assembly of the entire multi-cylinder direct-locking mold clamping mechanism is realized.

[0068] When mold locking is required, oil is supplied to the piston chamber of the mold cylinder assembly via an oil pump, creating high pressure. The upper mold platen moves downward under the drive of the machine column spindle to achieve mold locking. During mold opening, the oil inside the piston chamber is discharged outward, and the machine column spindle drives the upper mold platen upward, completing the mold opening operation. The direct-lock mold cylinder machine column, in conjunction with the mold cylinder sleeve assembly, achieves high-pressure mold locking and opening operations, while also providing synchronous guidance. The integrated structure of the machine column spindle allows for direct coaxial transmission of the mold locking and opening force. This force is directly transmitted to the upper mold platen, directly driving its up-and-down movement. The direct transmission of the mold locking and opening force to the upper mold platen eliminates force loss, ensuring the force remains consistent with the set value and resulting in smoother machine operation.

[0069] Because this multi-cylinder direct-lock mold clamping mechanism does not have a lower mold plate or a single central mold cylinder, it can reduce the weight of the machine, save costs, save lower space, and reduce the operation and debugging of the workbench.

[0070] The machine employs four mold cylinder assemblies located below the lower template, with the machine column and mold cylinder mandrel designed as a single integrated machine column mandrel. The four machine column mandrels enable mold locking and opening operations, optimizing the machine structure, improving stability, enhancing overall rigidity, and reducing assembly deviations. The assembly process is simplified, with easy and straightforward operation of the machine column mandrel and mold cylinder sleeve. Maintenance and replacement are convenient. The machine column mandrel features a multi-functional design, functioning as both a mandrel and a machine column, ensuring good linkage and high operational consistency, significantly improving the overall machine stability. Fewer parts reduce accumulated assembly errors and improve machine precision.

[0071] The above embodiments are only some embodiments of this utility model, and not all embodiments. Furthermore, based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort and based on the technical solutions of this application should fall within the protection scope of this utility model.

Claims

1. A multi-cylinder direct-lock mold clamping mechanism, characterized in that: It includes a template assembly (1) and a guide-driven direct-lock integrated mold cylinder unit (2). The mold cylinder unit (2) includes multiple sets of mold cylinder assemblies (4). Each set of mold cylinder assemblies (4) includes a mold cylinder sleeve assembly (3) and a direct-lock mold cylinder column (5). The direct-lock mold cylinder column (5) adopts an integrated structure of column and mandrel.

2. The multi-cylinder direct-lock mold-locking mechanism according to claim 1, characterized in that: The direct-locking mold cylinder column (5) includes an integrally formed mandrel section (51) and column section (52). A piston (53) is provided on the mandrel section (51), and a locking external thread (56) is provided on the upper part of the column section (52).

3. The multi-cylinder direct-lock mold-locking mechanism according to claim 1, characterized in that: The mold cylinder sleeve assembly (3) includes a mold cylinder sleeve (31) and a mold cylinder front cover (32). The mold cylinder sleeve (31) has a piston chamber (35) inside, and the mold cylinder front cover is a sealing cap located on the upper end of the mold cylinder sleeve (31).

4. The multi-cylinder direct-lock mold-locking mechanism according to claim 3, characterized in that: The front cover (32) of the mold cylinder is provided with an organic column core sliding hole (34).

5. The multi-cylinder direct-lock mold-locking mechanism according to claim 3, characterized in that: The mold cylinder front cover (32) includes an integrally formed flange cover (36) and a cover sealing connection protrusion (37) located at the center of the cover and protruding upward. The cover sealing connection protrusion (37) is provided with a cover seal (6).

6. The multi-cylinder direct-lock mold-locking mechanism according to claim 3, characterized in that: The front cover (32) of the mold cylinder is provided with an oil pump flange (7) for connecting an external oil supply pump.

7. The multi-cylinder direct-lock mold-locking mechanism according to claim 3, characterized in that: The mold cylinder sleeve assembly (3) also includes a mold cylinder rear cover (33), which is sealed to the lower end of the mold cylinder sleeve or the mold cylinder rear cover (33) is integrally formed with the mold cylinder sleeve (31).

8. The multi-cylinder direct-lock mold clamping mechanism according to any one of claims 1 to 6, characterized in that: The template assembly (1) includes an upper template (11) and a lower template (12). Multiple sets of mold cylinder sleeve assemblies (3) are arranged in a balanced structure below the lower template (12) and are fixedly connected to the lower template (12). The straight-lock mold cylinder column (5) passes through the lower template (12) and is fixedly connected to the upper template (11), driving the upper template (11) to move up and down.

9. The multi-cylinder direct-lock mold-locking mechanism according to claim 8, characterized in that: The lower template (12) is provided with an organic column sliding hole (13) corresponding to the cylinder sleeve assembly (3). The lower end of the organic column sliding hole (13) is provided with a cylinder head positioning sealing hole (14) on the same axis. The upper end of the organic column sliding hole (13) is connected to the organic column guide (8).

10. The multi-cylinder direct-lock mold-locking mechanism according to claim 8, characterized in that: The upper template (11) is provided with upper template connection holes (19) corresponding to multiple sets of mold cylinder components.

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