Single-cylinder low-workbench mold locking mechanism

Abstract

The utility model discloses a single-cylinder low-workbench mold locking mechanism which comprises an upper mold plate, a lower mold plate and an integrated mold locking mechanism, and the integrated mold locking mechanism comprises a piston type mold cylinder assembly connected with the lower mold plate and a cavity type cylinder lower mold plate connected with the piston type mold cylinder assembly into a whole. And a built-in mold locking stroke space is arranged between the cavity type cylinder lower mold plate and the lower mold plate. According to the single-cylinder low-workbench mold locking mechanism, the integrated mold locking mechanism is adopted, and the mold locking and opening stroke of the piston type mold cylinder assembly is set in the cavity of the cavity type cylinder lower mold plate, so that the height space between the upper mold plate and the cavity type cylinder lower mold plate is greatly reduced, the moving stroke of a mold cylinder can be ensured, and meanwhile, the overall height is reduced; and the arrangement of a low workbench structure is realized. The die cylinder mandrel is directly connected with the lower die plate of the cavity type cylinder, so that parts are reduced, the installation precision is improved, the structure is simpler, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine technical field especially relates to a single cylinder low workstation mold clamping mechanism. BACKGROUND

[0002] The cylinder lower die plate in the traditional mold clamping mechanism is mostly cuboid or cylinder, and is hollowed out below and slightly convex at the upper end; the mold cylinder core shaft and the cylinder lower die plate are connected by 6-8 pressing blocks.

[0003] But the cylinder lower die plate after being hollowed out, although the weight is reduced, but in the mold clamping process will lead to insufficient strength, long-term use process will appear the phenomenon such as fracture, thereby leading to mold clamping mechanism damage, seriously affect production efficiency, increase maintenance cost simultaneously.

[0004] In order to solve the problem that the workstation is too high and inconvenient to operate, the prior art such as China patent document CN222571504U is a kiloton low position hydraulic mold clamping structure, containing the movable die set arranged above the fixed die, the opening and closing die oil cylinder for driving the movable die set to open and close the mold, four vertical locking columns passing through the movable die and the fixed die connection, two sets of locking mechanisms arranged on the movable die; the movable die includes a booster plate and an upper die plate; the booster plate is located above the upper die plate, and at least one booster oil cylinder is arranged between the booster plate and the upper die plate; two sets of locking mechanism components are symmetrically arranged on the booster plate, and each set of locking mechanism component can simultaneously lock two locking columns. The above technical scheme is to set the booster oil cylinder on the movable die to reduce the height of the workstation surface.

[0005] But this scheme reduces the height of the workstation, but the whole machine has the problems of complex structure, high cost, etc. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the problem that the traditional mold clamping mechanism reduces the height of the workstation through the hollow cylinder lower die plate, has the problems of insufficient strength in the mold clamping process, easy to appear fracture, seriously affect production efficiency, high cost, etc., and provides a single cylinder low workstation mold clamping mechanism which can guarantee the use strength of the cylinder lower die plate, improve the service life, effectively reduce the height of the workstation, has few parts, simple structure and low cost.

[0007] The utility model discloses a single cylinder low workstation mould locking mechanism, including upper die plate, lower die plate and integrated mould locking mechanism, the integrated mould locking mechanism includes the piston type mould cylinder subassembly of being connected with lower die plate and the cavity type cylinder lower die plate of being connected as an organic whole with piston type mould cylinder subassembly, the cavity type cylinder lower die plate is provided with built-in mould locking stroke space between lower die plate, this single cylinder low workstation mould locking mechanism, the new design is carried out to prior art scheme, and the integrated setting of mould cylinder subassembly and cylinder lower die plate forms a brand-new integrated mould locking mechanism, and the integrated mould locking mechanism mainly includes piston type mould cylinder subassembly and cavity type cylinder lower die plate, and the piston type structure is set up to the existing mould cylinder, and the piston type mould cylinder subassembly is directly connected with cavity type cylinder lower die plate, and does not set up the pressing block and other components, and the cylinder type die plate is newly designed, adopts cavity structure, sets up piston type mould cylinder subassembly's mould locking opening-die stroke in the cavity of cavity type cylinder lower die plate, greatly reduces the height of entire workstation, simultaneously, cavity type cylinder lower die plate can not be limited by thickness, can guarantee use intensity and service life, and piston type mould cylinder subassembly is directly integrated with cavity type cylinder lower die plate, reduces the setting of components, and the equipment structure is reduced, and stable precision mould opening and mould locking can be realized through single piston type mould cylinder subassembly, and production cost is reduced.

[0008] As preferred, the piston type mould cylinder subassembly includes a mould cylinder sleeve and a mould cylinder spindle in piston type dynamic sliding seal connection with the mould cylinder sleeve, and the outer end of the mould cylinder spindle is directly connected to the cavity type cylinder lower die plate. The piston type mould cylinder subassembly is provided with only one mould cylinder sleeve and one mould cylinder spindle, and the mould cylinder spindle is in piston type dynamic sliding seal connection with the mould cylinder sleeve, thereby ensuring good sealing performance during movement of the mould cylinder sleeve, realizing precise mould locking and opening, and the piston type mould cylinder subassembly cancels the mould cylinder lower cover and the pressing block and other components connected with the cylinder lower die plate, and the outer end, i.e. the lower end, of the mould cylinder spindle is directly connected to the cavity type cylinder lower die plate, so that the piston type mould cylinder subassembly has fewer components and high assembly precision, and the overall reliability of the mould locking mechanism is improved.

[0009] As preferred, the mould cylinder spindle is internally provided with a spindle cavity, and the outer end of the mould cylinder spindle is provided with a spindle mounting positioning hole. In order to eliminate the interference of vibration during use, the mould cylinder spindle is internally provided with a spindle cavity, and the outer end of the mould cylinder spindle is provided with a spindle mounting positioning hole under the premise of ensuring use intensity, the spindle mounting positioning hole can be directly connected to the cavity type cylinder lower die plate, thereby effectively eliminating vibration interference, reducing components and assembly deviation, and improving mounting precision.

[0010] As preferred, the mold cylinder sleeve is internally provided with a mold cylinder cavity, and the inner wall of the mold cylinder cavity is provided with a composite sealing groove, and the composite sealing groove is internally provided with a plurality of sealing pieces. The mold cylinder cavity is arranged in the mold cylinder sleeve, the composite sealing groove is arranged on the inner wall of the mold cylinder cavity, and the plurality of sealing pieces are arranged in the composite sealing groove, so that the sealing performance is effectively improved, the sliding sealing between the mold cylinder core shaft and the mold cylinder sleeve is realized, the sealing effect is ensured, and the mold locking precision is improved.

[0011] As preferred, the mold cylinder sleeve is provided with a fixing structure, and the fixing structure is provided with a fixing hole. The fixing structure and the fixing hole are arranged on the mold cylinder sleeve to facilitate the fixed connection with the lower die plate, so that the up-down movement of the lower die plate is driven by the movement of the mold cylinder sleeve, and the single-cylinder mold locking operation is realized.

[0012] As preferred, the cavity type lower die plate is provided with a mold cylinder sleeve movable cavity, and a core shaft mounting cavity is arranged at the bottom of the mold cylinder sleeve movable cavity. The mold cylinder sleeve movable cavity is arranged on the cavity type lower die plate to facilitate the up-down movement of the mold cylinder sleeve during the mold locking and mold opening process. The movement stroke is arranged in the mold cylinder sleeve movable cavity, which can greatly reduce the height of the workbench and ensure the stroke of the mold closing operation. The core shaft mounting cavity is arranged at the bottom of the mold cylinder sleeve movable cavity to facilitate the direct connection between the core shaft and the cavity type lower die plate.

[0013] As preferred, the mold cylinder sleeve movable cavity and the lower plate surface of the lower die plate form the built-in mold locking stroke space. The built-in mold locking stroke space is formed by the mold cylinder sleeve movable cavity and the lower die plate, which can greatly reduce the height of the workbench and improve the working strength of the lower die plate.

[0014] As preferred, a plurality of connecting holes are uniformly arranged at the bottom of the core shaft mounting cavity, and the connecting holes penetrate the lower plate surface of the cavity type lower die plate. The connecting holes penetrating the lower plate surface of the cavity type lower die plate are arranged at the bottom of the core shaft mounting cavity, which facilitates the direct fixation of the mold cylinder core shaft on the core shaft mounting cavity from the lower part of the cavity type lower die plate through screws and other connecting members. The arrangement of the direct connection structure makes the assembly more simple and convenient.

[0015] As preferred, the cavity type lower die plate is provided with a recessed quick cylinder mounting position, and a quick cylinder core shaft positioning hole is arranged on the quick cylinder mounting position. The cavity type lower die plate is also provided with a machine column mounting hole. In order to ensure the arrangement of the quick cylinder assembly in the low workbench state, the recessed quick cylinder mounting position and the quick cylinder core shaft positioning hole are arranged on the cavity type lower die plate, so that the stroke of the quick cylinder is limited within the cavity type lower die plate, and the overall arrangement of reducing the height of the workbench is realized. The end part of the quick cylinder core shaft is directly mounted in the quick cylinder core shaft positioning hole, which facilitates the installation and ensures the installation precision.

[0016] As preferred, the lower die plate is slidably arranged on the integrated mold locking mechanism through a set of mold cylinder machine columns, the lower plate surface of the lower die plate is provided with a mold cylinder mounting structure and a quick cylinder fixing structure, and the quick cylinder fixing structure is provided in a concave structure.

[0017] The single-cylinder low-workbench mold locking mechanism has the advantages that: the integrated mold locking mechanism is adopted, the mold locking and mold opening stroke of the piston type mold cylinder assembly is arranged in the cavity of the cavity type lower die plate, the height space between the upper die plate and the cavity type lower die plate is greatly reduced, the movable stroke of the mold cylinder is ensured, the overall height is reduced, the low-workbench structure is arranged, the mold cylinder shaft is directly connected with the cavity type lower die plate, the number of parts is reduced, the installation precision is improved, the structure is simpler, the production cost is reduced, the dynamic sliding sealing is realized through the arrangement of a plurality of sealing elements in the mold cylinder shaft and the mold cylinder sleeve, the sealing effect is good, and vibration interference is eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the single-cylinder low-workbench mold locking mechanism.

[0019] Figure 2 is a front view of the single-cylinder low-workbench mold locking mechanism.

[0020] Figure 3 is a top view of the single-cylinder low-workbench mold locking mechanism.

[0021] Figure 4 is a sectional view of the single-cylinder low-workbench mold locking mechanism.

[0022] Figure 5 is Figure 3 is the A-A sectional view.

[0023] Figure 6 is a structural schematic view of the integrated mold locking mechanism.

[0024] Figure 7 is a structural schematic view of the integrated mold locking mechanism from another angle.

[0025] Figure 8 is a structural schematic view of the cavity type lower die plate.

[0026] Figure 9 is an exploded structural schematic view of the piston type mold cylinder assembly.

[0027] Figure 10Is a structure schematic view of the lower mold plate.

[0028] Figure 11 Is a structure schematic view of the single-cylinder low workbench mold locking mechanism.

[0029] In the figure: 1, the upper mold plate, 2, the lower mold plate, 3, the integrated mold locking mechanism, 4, the mold cylinder machine column,

[0030] 5, the mold cylinder sleeve, 50, the mold cylinder cavity, 51, the sealing cavity, 52, the transition cavity, 53, the movable cavity, 54, the composite sealing groove, 55, the sealing element, 56, the disc type oil filling valve, 57, the oil filling valve flange, 58, the fixed structure, 59, the fixed hole;

[0031] 6, the mold cylinder mandrel, 60, the mandrel body, 61, the mandrel cavity, 62, the mandrel installation positioning hole;

[0032] 7, the cavity type lower mold plate, 70, the cavity type lower mold plate body, 71, the mold cylinder sleeve movable cavity, 72, the mandrel installation cavity, 73, the connecting hole, 74, the quick cylinder installation position, 75, the quick cylinder mandrel positioning hole, 76, the V-shaped groove, 77, the machine column installation hole;

[0033] 8, the quick cylinder assembly, 81, the quick cylinder sleeve, 82, the quick cylinder mandrel, 83, the quick cylinder front cover, 84, the quick cylinder rear cover, 85, the quick cylinder snap ring;

[0034] 9, the slide plate fixed plate, 10, the pull cylinder assembly, 11, the pull cylinder, 12, the slide plate, 13, the pull cylinder sleeve, 14, the pull cylinder mandrel, 15, the ejector pin cylinder assembly, 16, the ejector pin cylinder sleeve, 17, the ejector pin cylinder mandrel, 18, the injection unit, 19, the screw rod barrel assembly. DETAILED DESCRIPTION

[0035] The technical scheme of the utility model will be explained in further detail below by means of specific embodiments and in conjunction with the drawings.

[0036] Embodiment 1:

[0037] In Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5In the illustrated embodiment, a single-cylinder low-table clamping mechanism includes an upper template 1, a lower template 2, and an integrated clamping mechanism 3. The integrated clamping mechanism 3 includes a piston-type mold cylinder assembly connected to the lower template 2 and a cavity-type lower template 7 integrally connected to the piston-type mold cylinder assembly. A built-in clamping stroke space is provided between the cavity-type lower template 7 and the lower template 2. Because the cavity-type lower template 7 has an overall cavity structure, it saves the height space between the lower templates, allowing the stroke space of the piston-type mold cylinder assembly to form a built-in stroke space, greatly reducing the height of the worktable and achieving a low-table setup.

[0038] like Figure 9 As shown, the piston-type mold cylinder assembly includes only a mold cylinder sleeve 5 and a mold cylinder mandrel 6 that is dynamically and dynamically slidingly sealed to the mold cylinder sleeve. No lower mold cylinder cover is provided at the end of the mold cylinder sleeve, nor is a pressure block provided at the front end of the mold cylinder mandrel. Instead, the outer end of the mold cylinder mandrel 6 is directly connected to the cavity-type lower mold plate 7. This reduces the number of components, lowers assembly risks, and improves assembly accuracy, thereby further enhancing the overall precision of the equipment. Furthermore, the direct connection between the mold cylinder mandrel 6 and the cavity-type lower mold plate 3 eliminates vibration interference during mold locking and opening.

[0039] The mold cylinder mandrel 6 has a mandrel cavity 61 inside, and a mandrel mounting and positioning hole 62 is provided at the outer end of the mold cylinder mandrel 6. The mold cylinder sleeve 5 has a mold cylinder cavity 50 inside, and a composite sealing groove 54 is provided on the inner wall of the mold cylinder cavity 50. The composite sealing groove 54 is provided with multi-specification sealing elements 55.

[0040] like Figure 8 As shown, the lower mold plate 7 of the cavity type cylinder is provided with a mold cylinder sleeve movable cavity 71, and a mandrel mounting cavity 72 is provided at the bottom of the mold cylinder sleeve movable cavity 71. The mold cylinder sleeve movable cavity 71 and the lower plate surface of the lower mold plate form the built-in mold locking stroke space.

[0041] The bottom of the mandrel mounting cavity 72 is evenly distributed with multiple connecting holes 73, which penetrate the lower plate surface of the lower template 7 of the cavity cylinder. The mandrel of the mold cylinder is fixed inside the mandrel mounting cavity 72 and directly connected and fixed from below the lower template of the cavity cylinder using screws or other connecting parts, which is convenient and quick to operate. Specifically, the end of the mold cylinder core end 6 mates with the mandrel mounting hole 72, and then the mandrel mounting positioning hole 62 at the end of the mandrel is directly connected to the connecting hole using screws or other connecting parts, without the need for fixing with components such as pressure blocks. This reduces assembly errors between parts and eliminates vibration interference.

[0042] In order to further reduce the height of the workbench, a recessed quick cylinder mounting position 74 is arranged on the cavity type lower mold plate 7, and a quick cylinder core shaft positioning hole 75 is arranged on the quick cylinder mounting position 74.

[0043] The lower mold plate 2 is slidably arranged on the integrated mold locking mechanism 3 through a group of mold cylinder columns 4.

[0044] The single-cylinder low-workbench mold locking mechanism adopts the integrated mold locking mechanism, and the mold locking and mold opening stroke of the piston type mold cylinder assembly is arranged in the cavity of the cavity type lower mold plate, which greatly reduces the height space between the upper mold plate and the cavity type lower mold plate, can ensure the movement stroke of the mold cylinder, reduces the overall height, and realizes the low-workbench structure.

[0045] The single-cylinder low-workbench mold locking mechanism adopts the integrated mold locking mechanism, and the mold locking and mold opening stroke of the piston type mold cylinder assembly is arranged in the cavity of the cavity type lower mold plate, which greatly reduces the height space between the upper mold plate and the cavity type lower mold plate, can ensure the movement stroke of the mold cylinder, reduces the overall height, and realizes the low-workbench structure.

[0046] Embodiment 2:

[0047] In Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 In the embodiment shown, a single-cylinder low-workbench mold locking mechanism includes an upper mold plate 1, a lower mold plate 2, and an integrated mold locking mechanism 3. The lower mold plate 2 is slidably arranged on the integrated mold locking mechanism 3 through a group of mold cylinder columns 4. The upper mold plate 1 is arranged above the mold cylinder columns 4 of the lower mold plate 2. The integrated mold locking mechanism 3 includes a piston type mold cylinder assembly connected with the lower mold plate 2 and a cavity type lower mold plate 7 integrated with the piston type mold cylinder assembly. An internal mold locking stroke space is arranged between the cavity type lower mold plate 3 and the lower mold plate 2.

[0048] The piston type mold cylinder assembly only includes a mold cylinder sleeve 5 and a mold cylinder core shaft 6 in piston type dynamic sliding sealing connection with the mold cylinder sleeve. No mold lower cover is arranged at the end of the mold cylinder sleeve, and no pressing block is arranged at the front end of the mold cylinder core shaft. Instead, the cavity type lower mold plate 7 is directly connected to the outer end of the mold cylinder core shaft 6.

[0049] The integrated mold locking mechanism 3 is mainly formed by a mold cylinder sleeve 5, a mold cylinder core shaft 6 sliding in the mold cylinder sleeve, and a cavity type lower mold plate 7 arranged in an integrated manner. The single-cylinder low-workbench mold locking mechanism further includes a group of quick cylinder assemblies 8.

[0050] The cavity type undercylinder template 7 comprises a cavity type undercylinder template body 70, which is provided in a cuboid U-shaped structure as a whole, and is provided with a movable cavity 71 of a mold cylinder sleeve at a central position of the cavity type undercylinder template body 70, and is provided with a core shaft mounting cavity 72 for realizing the connection and positioning of the mold cylinder core shaft 6 at the bottom of the movable cavity 71 of the mold cylinder sleeve, and is uniformly provided with a plurality of connecting holes 73 at the bottom of the core shaft mounting cavity 72, and the connecting holes 73 penetrate through the bottom of the cavity type undercylinder template body 70.

[0051] The cavity type undercylinder template 7 is further provided with two quick cylinder mounting positions 74, and the quick cylinder mounting positions 74 are provided with quick cylinder core shaft positioning holes 75. The quick cylinder mounting positions 74 are provided in a symmetrical structure at two ends of the cavity type undercylinder template body 70, and the quick cylinder mounting positions 74 are recessed at the two ends of the cavity type undercylinder template body 70, specifically, V-shaped grooves 76 are provided at the two ends of the cavity type undercylinder template body 70, the groove bottoms of the V-shaped grooves are provided towards the central direction of the cavity type undercylinder template, the quick cylinder mounting positions are provided in the V-shaped grooves, and the bottom surfaces of the quick cylinder mounting positions are flush with the bottom surface of the cavity type undercylinder template body.

[0052] The quick cylinder assembly 8 comprises a quick cylinder sleeve 81, a quick cylinder core shaft 82, a quick cylinder front cover 83 and a quick cylinder rear cover 84, the quick cylinder rear cover 84 is fixedly connected with the bottom surface of the undercylinder template, the lower end of the quick cylinder core shaft 82 is inserted into the quick cylinder positioning hole 75, and is connected with the quick cylinder mounting position 74 through a quick cylinder clasp 85.

[0053] Machine column mounting holes 77 are provided at four corners of the cavity type undercylinder template 7 respectively, so as to facilitate the connection of the four mold cylinder machine columns 4 with the cavity type undercylinder template 7.

[0054] The mold cylinder sleeve 5 is movably connected with the mold cylinder core shaft 6, the mold cylinder sleeve 5 is provided with a mold cylinder cavity 50 inside, and the mold cylinder cavity 50 is provided inside the mold cylinder sleeve 5, which has two functions, one is to reduce the weight of the mold cylinder core shaft under the premise of ensuring the strength of the mold cylinder core shaft, and the other is to eliminate the influence of vibration in the use process. The mold cylinder cavity 50 is provided in a stepped structure with a sealing cavity 51, a transition cavity 52 and a movable cavity 53, a composite sealing groove 54 is provided on the cavity wall of the sealing cavity 51, and a plurality of different types of multi-specification sealing elements 55 of various specifications are provided inside the composite sealing groove 54.

[0055] The sealing element 55 comprises abrasion-resistant ring one, stellite seal, U-shaped seal, abrasion-resistant ring two and dust seal arranged in sequence from top to bottom.

[0056] A disc type full oil valve 56 and a full oil valve flange 57 are arranged on the outer wall of the mold cylinder sleeve 5. The disc type full oil valve is used to control the size and direction of oil flow.

[0057] The mold cylinder core shaft 6 comprises a core shaft body 60, a core shaft cavity 61 is arranged inside the core shaft body 60, a core shaft mounting positioning hole 62 is arranged at the lower end of the core shaft body 60, and a sliding dynamic sealing connection is formed between the outer wall of the core shaft body 60 and the sealing element 55, so as to facilitate good sealing effect during the up-down sliding of the mold cylinder sleeve 5 along the mold cylinder core shaft 6, and ensure the accuracy of the mold opening and closing operation.

[0058] The lower end of the mold cylinder core shaft 6 is arranged inside the core shaft mounting cavity 72, and is connected by a connecting piece that penetrates the connecting hole 73 at the bottom of the core shaft mounting cavity 72 and the core shaft mounting positioning hole 62 from the bottom to the top of the lower mold plate surface, so as to realize the direct connection and fixation of the mold cylinder core shaft 6 and the cavity type lower mold plate 7.

[0059] A plurality of fixing structures 58 are uniformly arranged on the upper end side of the mold cylinder sleeve 5, and the fixing structure 58 in this embodiment adopts a fixing lug, a fixing hole 59 is arranged on the fixing lug, the mold cylinder sleeve 5 is fixedly connected with the lower plate surface of the lower mold plate 2 through the fixing hole 59, and the up-down movement of the mold cylinder sleeve 5 drives the up-down movement of the lower mold plate 2, so as to realize the mold opening and closing movement.

[0060] As shown in Figure 10 In order to more effectively reduce the height of the workbench and save the space between the lower mold plate and the cavity type lower mold plate, a mold cylinder mounting structure 21 and a quick cylinder fixing structure 22 are arranged on the lower plate surface of the lower mold plate 2, and the quick cylinder fixing structure 22 is arranged in a concave structure.

[0061] As shown in Figure 11 As shown in

[0062] A plunger cylinder assembly 15 is arranged below the slide plate fixing plate 9, the plunger cylinder assembly 15 comprises a plunger cylinder sleeve 16 and a plunger cylinder core shaft 17, the plunger cylinder sleeve 16 is arranged in a through manner, and the plunger cylinder core shaft 17 extends to the outside of the two ends of the plunger cylinder sleeve.

[0063] An injection unit 18 and a screw barrel assembly 19 are arranged on the upper mold plate 1.

[0064] The single-cylinder low-workbench clamping mechanism greatly reduces the overall height of the injection molding machine and facilitates operation.

[0065] The single-cylinder low-workbench clamping mechanism integrates the mold cylinder and the cavity-type lower mold plate, and the cavity-type lower mold plate directly has a U-shaped mold cylinder sleeve movable cavity 71 arranged thereon, so that the mold cylinder sleeve can move in the movable cavity during clamping, greatly reducing the height space between the upper mold plate and the cavity-type lower mold plate, ensuring the movement stroke of the mold cylinder, reducing the overall height, and achieving the low-workbench structure.

[0066] The integrated cavity-type lower mold plate reduces parts, simplifies the structure, and reduces production costs.

[0067] The mold cylinder core shaft and the cavity-type lower mold plate are directly connected in the core shaft mounting cavity 72 through screws, without the need for additional mold cylinder core shaft pressing blocks and other fixing parts, which improves the installation precision and simplifies the overall structure.

[0068] The above embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments described in the present application, all other embodiments obtained on the basis of the technical solutions of the present application without creative labor should belong to the scope of protection of the present application.

Claims

1. A single-cylinder low-bed die locking mechanism characterized by: It includes upper die plate (1), lower die plate (2) and integrated die locking mechanism (3), the integrated die locking mechanism (3) includes piston die cylinder assembly connected with lower die plate (2) and cavity type lower die plate (7) connected with piston die cylinder assembly as a whole, the cavity type lower die plate (7) is provided with built-in die locking stroke space between lower die plate (2).

2. The single-cylinder low-bed die locking mechanism according to claim 1, characterized by: The piston die cylinder assembly includes die cylinder sleeve (5) and die cylinder core shaft (6) in piston type dynamic sliding sealing connection with die cylinder sleeve (5), the outer end of the die cylinder core shaft (6) is directly connected with the cavity type lower die plate (7).

3. The single-cylinder low-bed die locking mechanism according to claim 2, characterized by: The inside of the die cylinder core shaft (6) is provided with core shaft cavity (61), and the outer end of the die cylinder core shaft (6) is provided with core shaft mounting positioning hole (62).

4. The single-cylinder low-bed die locking mechanism according to claim 2, characterized by: The inside of the die cylinder sleeve (5) is provided with die cylinder cavity (50), the inner wall of the die cylinder cavity (50) is provided with composite sealing groove (54), and the inside of the composite sealing groove (54) is provided with multi-specification sealing element (55).

5. The single-cylinder low-bed die locking mechanism according to claim 2, characterized by: The die cylinder sleeve (5) is provided with fixing structure (58), and the fixing structure (58) is provided with fixing hole (59).

6. The single-cylinder low-bed die locking mechanism according to any one of claims 1 to 5, characterized by: The cavity type lower die plate (7) is provided with die cylinder sleeve movable cavity (71), and the bottom of the die cylinder sleeve movable cavity (71) is provided with core shaft mounting cavity (72).

7. The single-cylinder low-bed die locking mechanism according to claim 6, characterized by: The die cylinder sleeve movable cavity (71) and the lower plate surface of the lower die plate (2) form the built-in die locking stroke space.

8. The single-cylinder low-bed die locking mechanism according to claim 6, characterized by: The bottom of the core shaft mounting cavity (72) is uniformly provided with a plurality of connecting holes (73), and the connecting holes (73) penetrate the lower plate surface of the cavity type lower die plate (7).

9. The single-cylinder low-bed die locking mechanism according to any one of claims 1 to 5, characterized by: The cavity type lower die plate (7) is provided with recessed quick cylinder mounting position (74), and the quick cylinder core shaft positioning hole (75) is arranged on the quick cylinder mounting position (74); The cavity type lower die plate (7) is also provided with a machine column mounting hole (77).

10. The single-cylinder low-bed die locking mechanism according to any one of claims 1 to 5, characterized by: The lower die plate (2) is slidably arranged on the integrated die locking mechanism (3) through a group of die cylinder machine columns, the lower plate surface of the lower die plate (2) is provided with die cylinder mounting structure (21) and quick cylinder fixing structure (22), and the quick cylinder fixing structure (22) is provided in recessed structure.

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