Linkage type cover closing mechanism for flip injection mold
The design of the linkage closing mechanism realizes the synchronization of the pushing action and the closing action in the flip-top injection mold, solves the linkage problem of the closing mechanism, improves the closing accuracy and efficiency, and is suitable for flip-top injection molds of various specifications.
Patent Information
- Application Number
- CN202520018186.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-06
AI Technical Summary
The existing flap injection mold's closing mechanism lacks good linkage, resulting in low accuracy and efficiency of the closing action. Furthermore, it requires multiple drive components to drive the propulsion and closing components, affecting production efficiency and quality.
A linkage-type lid-closing mechanism was designed. Through the linkage structure of components such as hydraulic cylinder, rack plate, guide rail plate, clutch and shaft gear, the pushing action and lid-flipping action are synchronized. The engagement structure of clutch and clutch block ensures the synchronous movement of guide rail plate and rack plate, driving the pressure shaft to close the lid.
It improves the accuracy and efficiency of lid closing, is applicable to different specifications of flip-top injection molds, expands the scope of application, and achieves high-precision lid closing action through clutch adjustment.
Smart Images
Figure CN223720015U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the mould field especially relates to be used for the linkage type lid closing mechanism in flip cover injection mold. BACKGROUND
[0002] When using flip cover injection mold to produce flip cover type bottle cap, need to close the bottle cap of injection molding, the current market either is through manual operation, but manual operation cannot guarantee the bottle cap quality, and also can influence production efficiency, either is through the lid closing mechanism and closes the lid, the lid closing mechanism on the market needs first through the advance component and sends the lid closing assembly into the lower mould after opening the mould, uses the lid closing assembly and closes the bottle cap, and the advance component and the lid closing assembly need to be driven through two different driving pieces, and the advance component and the lid closing assembly cannot guarantee good linkage when moving, and the precision of closing action is easily reduced. UTILITY MODEL CONTENTS
[0003] The utility model discloses a kind of linkage type lid closing mechanisms for flip cover injection mold, which can realize good linkage of advance action and flip cover action to ensure high-precision closing action.
[0004] To achieve the above object, the technical scheme adopted by the utility model is: a linkage type lid closing mechanism for flip cover injection mold, comprising: a fixed plate and a cylinder seat, a plurality of guide shafts are arranged between the fixed plate and the cylinder seat, a rack plate and a guide rail plate are sequentially arranged in front and back between the guide shafts, a plurality of top shafts are arranged on the fixed plate, the top shafts are movably arranged in the rack plate, an oil cylinder is arranged on the cylinder seat, a piston on the oil cylinder is connected with the rack plate after passing through the guide rail plate, a plurality of clutches are arranged between the fixed plate and the cylinder seat, the clutches are connected with the rack plate, a clutch block matched with the clutches is movably arranged in the guide rail plate, a guide rail arm is arranged on each side of the guide rail plate, the guide rail arm is slidably clamped on a connecting guide rail, a shaft gear is rotatably arranged in the guide rail arm, a rotating arm is connected to the shaft gear, a pressing shaft is connected between the two rotating arms, a rack is arranged on each side of the rack plate, and the rack is engaged with the shaft gear on the same side of the guide rail arm.
[0005] Further, the aforementioned linkage type lid closing mechanism for flip cover injection mold, wherein a reduced diameter section is arranged on the pressing shaft, a plurality of buffer rubber sleeves are sleeved in the reduced diameter section, and a spacer sleeve is sleeved between every two buffer rubber sleeves.
[0006] Further, the linkage type cover closing mechanism for the flip cover injection mold, wherein two clutches are symmetrically arranged between the fixed plate and the top wall of the oil cylinder seat and between the bottom wall, the clutch comprises: a limiting plate, a guide slot is formed in the limiting plate, a recess is arranged on the left and right side slot walls of the guide slot, a front guide inclined surface is arranged at the front end of the recess, a clutch plate is slidably clamped in the guide slot, the clutch plate is connected with the rack plate, a clutch slot is arranged in the clutch plate and is flush with the recess, a rear guide inclined surface is arranged at the rear end of the clutch plate, a wedge surface is arranged on the front side wall of the clutch block, a spring is arranged between the clutch block and the guide rail plate, and the clutch block abuts against the recess and the clutch slot under the elastic force of the spring.
[0007] Further, the linkage type cover closing mechanism for the flip cover injection mold, wherein the connecting structure between the clutch block and the guide rail plate comprises: an installation slot is formed in the guide rail plate, a guide sleeve is arranged in the installation slot, the clutch block is slidably clamped in the guide sleeve, a spring hole is formed in the clutch block, and the spring is clamped in the spring hole and abuts against the installation slot.
[0008] Further, the linkage type cover closing mechanism for the flip cover injection mold, wherein a U-shaped limiting plate is arranged on the guide rail arm and abuts against the rack.
[0009] Further, the linkage type cover closing mechanism for the flip cover injection mold, wherein a plurality of anti-collision blocks are arranged on the rear side wall of the fixed plate.
[0010] Further, the linkage type cover closing mechanism for the flip cover injection mold, wherein a front sensing switch is arranged on the bottom wall of the fixed plate, a rear sensing switch is arranged on the bottom wall of the oil cylinder seat, a front sensing plate matched with the front sensing switch is arranged on the bottom wall of the rack plate, and a rear sensing plate matched with the rear sensing switch is arranged on the bottom wall of the guide rail plate.
[0011] The linkage type cover closing mechanism for the flip cover injection mold has the advantages that when the compression shaft needs to be driven to approach or move away from the lower mold, the guide rail plate can be simultaneously driven to synchronously operate through the clamping structure between the clutch and the clutch block when the rack plate is driven by the oil cylinder, when the compression shaft needs to be driven to close the cover, the clutch block on the guide rail plate is separated from the clutch, only the rack plate can operate, and the rack on the rack plate acts on the shaft gear on the guide rail plate to drive the compression shaft to rotate and close the cover in the lower mold, so that the cover closing precision and efficiency are greatly improved; the synchronous forward operation stroke between the rack plate and the guide rail plate can be controlled by adjusting the length of the recess in the clutch and the length of the compression shaft, so that the linkage type cover closing mechanism for the flip cover injection mold can be applied to flip cover injection molds of different specifications only by replacing the clutch, and the application range is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1Is the three-dimensional structure schematic diagram of the linkage type cover closing mechanism in the flip cover injection mold.
[0013] Figure 2 Is Figure 1 The structure schematic diagram of the upward direction.
[0014] Figure 3 Is Figure 1 The cross-sectional structure schematic diagram of the meshing structure between the rack and the gear with shaft.
[0015] Figure 4 Is Figure 1 The cross-sectional structure schematic diagram of the connecting structure between the clutch and the clutch block.
[0016] Figure 5 Is Figure 1 The cross-sectional structure schematic diagram of the cooperation structure between the top shaft and the rack plate.
[0017] Figure 6 Is Figure 1 The cross-sectional structure schematic diagram of the connecting structure between the oil cylinder and the gear with shaft.
[0018] Figure 7 The three-dimensional structure schematic diagram of the connecting structure between the clutch and the clutch block.
[0019] Figure 8 The connecting structure schematic diagram between the linkage type cover closing mechanism in the flip cover injection mold and the lower mold of the flip cover injection mold. DETAILED DESCRIPTION
[0020] The technical scheme of the utility model will be further described below in combination with the drawings and preferred embodiments.
[0021] As Figures 1-8The utility model discloses a linkage type cover closing mechanism in flip cover injection mold, including: fixed plate 1 and oil cylinder seat 2, be provided with a plurality of guide shaft 11 between fixed plate 1 and oil cylinder seat 2, be provided with rack plate 3 and guide rail plate 4 in front and back in turn movably between guide shaft 11, be provided with a plurality of top axle 12 on the rear side wall of fixed plate 1, and top axle 12 is movably arranged in rack plate 3, be provided with a plurality of anti -collision block 13 on the rear side wall of fixed plate 1, be provided with oil cylinder 21 on oil cylinder seat 2, and the piston on oil cylinder 21 passes guide rail plate 4 and is connected with rack plate 3, be provided with two clutches 5 between the top wall and the bottom wall of fixed plate 1 and oil cylinder seat 2 and left and right symmetry, the clutch 5 includes: limit board 51, be provided with guide groove 52 on limit board 51, be provided with recess 53 on the left and right two side walls of guide groove 52, be provided with front guide inclined plane 531 on the front end of recess 53, and the clutch board 54 is slidably arranged in guide groove 52, and the clutch board 54 is connected with rack plate 3, be provided with clutch groove 55 in clutch board 54, and clutch groove 55 is flush with recess 53, be provided with rear guide inclined plane 541 on the rear end of clutch board 54, be provided with two installation grooves on the top wall and the bottom wall of guide rail plate 4 and left and right symmetry, be provided with guide sleeve 41 in installation groove, be provided with the clutch block 42 of cooperation in clutch board 54 in guide sleeve 41 and move, be provided with spring hole on clutch block 42, and be provided with spring 422 in spring hole, and spring 422 is supported in installation groove, be provided with wedge surface 421 on the front side wall of clutch block 42, and clutch block 42 is supported in recess 53 and clutch groove 55 under the elastic force of spring 422.
[0022] Be provided with front induction switch 14 on the bottom wall of fixed plate 1, be provided with rear induction switch 22 on the bottom wall of oil cylinder seat 2, be provided with front induction plate 31 on the bottom wall of rack plate 3 and cooperate with front induction switch 14, be provided with rear induction plate 43 on the bottom wall of guide rail plate 4 and cooperate with rear induction switch 22.
[0023] A guide rail arm 44 is arranged on the left and right sides of the guide rail plate 4 respectively, the guide rail arm 44 is slidingly clamped on the connecting guide rail 6, an axle gear 45 is rotatably arranged in the guide rail arm 44, a rotating arm 46 is connected on the axle gear 45, a compression shaft 7 is connected between the two rotating arms 46, a reduced diameter section is arranged on the compression shaft 7, a plurality of buffer rubber sleeves 71 are sleeved on the reduced diameter section of the compression shaft 7, a spacer sleeve 72 is sleeved between every two buffer rubber sleeves 71, the spacer sleeves 72 and the shoulders at both ends of the reduced diameter section of the compression shaft 7 can limit and fix the buffer rubber sleeves 71, since the buffer rubber sleeves 71 on the compression shaft 7 correspond to one row of flip covers in the flip cover injection mold one by one, and the number of flip covers in each row and the distance between the flip covers are different when injection molding flip covers of different specifications, therefore, the number and distance of the buffer rubber sleeves 71 on the compression shaft 7 can be adjusted according to the number of flip covers in each row and the distance between the flip covers, when adjusting the distance between the buffer rubber sleeves 71, a spacer sleeve 72 with the same length as the distance can be arranged between the two buffer rubber sleeves 71 to achieve the adjustment, a rack 32 is arranged on the left and right sides of the rack plate 3 respectively, the rack 32 is engaged with the axle gear 45 on the guide rail arm 44 of the same side, a U-shaped limiting plate 47 is arranged on the guide rail arm 44, the U-shaped limiting plate 47 is pressed against the rack 32 to limit the rack 32, preventing the rack 32 from disengaging from the axle gear 45.
[0024] Before use, the fixed plate 1 is fixed on the rear side wall of the lower mold of the flip cover injection mold, the two connecting guide rails 6 are fixed on the top wall of the lower mold of the flip cover injection mold, then the oil cylinder 21 is started, the oil cylinder 21 drives the rack plate 3 to move backward, when the rack plate 3 moves backward, the rack 32 moves backward together, and the clutch plate 54 in the clutch 5 also moves backward together, the rear inclined surface 541 on the clutch plate 54 contacts the wedge surface 421 on the clutch block 42 and presses the clutch block 42 downward, the clutch block 42 is pressed into the clutch groove 55 of the clutch plate 54, the clutch groove 55 is clamped with the clutch plate 54 to drive the clutch block 42 and the guide rail plate 4 to move backward together, the guide rail arm 44 on the guide rail plate 4 drives the compression shaft 7 to move backward together, when the rear sensing plate 43 on the guide rail plate 4 contacts the sensing switch 22 on the oil cylinder seat 2, it indicates that the guide rail plate 4 and the rack plate 3 move backward to the position, at this time, the compression shaft 7, the guide rail arm 44 and the rack 32 are away from the lower mold, the lower mold of the flip cover injection mold can be combined with the upper mold to perform injection molding.
[0025] After the injection molding is completed, the upper mold and the lower mold of the flip injection mold are opened, the flip is pushed up by the ejection of the ejector pin, then the oil cylinder 21 is started, the oil cylinder 21 drives the rack plate 3 to move forward together with the clutch plate 54, the clutch plate 54 drives the clutch block 42 and the guide rail plate 4 to move forward together, the guide rail arm 44 and the rack 32 also move forward together, since the guide rail arm 44 and the rack 32 move forward synchronously, the rack 32 will not drive the belt shaft gear 45 to rotate, the pressing shaft 7 will move forward to the flip of the lower mold in the initial state, when the wedge surface 421 on the clutch block 42 contacts the front guide slope 531 on the groove 53, the clutch block 42 is pressed and separated from the clutch groove 55 and abuts against the groove wall of the guide groove 52 under the elastic force of the spring 422, at this time, the guide rail plate 4 abuts against the top shaft 12, the top shaft 12 limits the guide rail plate 4, and the rack plate 3 continues to move forward under the drive of the oil cylinder 21, the rack plate 3 will drive the belt shaft gear 45 in the guide rail arm 44 to gear transmission, the belt shaft gear 45 drives the pressing shaft 7 to rotate upward, each buffer rubber sleeve 71 on the pressing shaft 7 contacts the corresponding flip and covers the flip, when the front induction plate 31 on the rack plate 3 contacts the front induction switch 14 on the fixed plate 1, it is indicated that the pressing shaft 7 is moved to the position, the flip covering is completed, after the covering is completed, the oil cylinder 21 drives the rack plate 3 to move backward, the pressing shaft 7 is gradually reversed to the initial state, when the clutch groove 55 in the clutch plate 54 and the clutch block 42 are reconnected together, the pressing shaft 7 is in the initial state, and the rack plate 3 drives the guide rail plate 4 to move backward through the clamping cooperation between the clutch plate 54 and the clutch block 42.
[0026] Since the flip injection mold for producing different specifications of flips is different in size, if the flip injection mold for the flip with a large volume is encountered, the front guide slope 531 on the groove 53 is arranged forward to lengthen the length of the groove 53 and shorten the length of the top shaft 12, so that the synchronous forward running stroke between the rack plate 3 and the guide rail plate 4 is increased, and the pressing shaft 7 has a large enough stroke to move to the position, if the flip injection mold for the flip with a small volume is encountered, the front guide slope 531 on the groove 53 is arranged backward to shorten the length of the groove 53 and lengthen the length of the top shaft 12, so that the synchronous forward running stroke between the rack plate 3 and the guide rail plate 4 is shortened, and the pressing shaft 7 moves to the position under a small stroke.
[0027] Finally, it should be noted that: the above examples are only used to illustrate the technical scheme of the present application, not to limit it, although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that: the specific embodiments of the present application can still be modified or replaced, without departing from the spirit and scope of the present application, any modification or equivalent replacement, which should be covered in the protection scope of the claims of the present application.
Claims
1. A linkage-type lid closing mechanism for use in flip-top injection molds, characterized in that: include: The system comprises a fixed plate and a cylinder seat. Several guide shafts are arranged between the fixed plate and the cylinder seat. A rack plate and a guide rail plate are movably arranged sequentially between the guide shafts. Several top shafts are arranged on the fixed plate and are movably inserted into the rack plate. A cylinder is arranged on the cylinder seat, and the piston on the cylinder passes through the guide rail plate and is connected to the rack plate. Several clutches are arranged between the fixed plate and the cylinder seat and are connected to the rack plate. A clutch block that cooperates with the clutch is movably arranged in the guide rail plate. A guide rail arm is arranged on each of the left and right sides of the guide rail plate and is slidably locked onto the connecting guide rail. A shaft gear is rotatably arranged in the guide rail arm, and a rotating arm is connected to the shaft gear. A pressure shaft is connected between the two rotating arms. A rack is arranged on each of the left and right sides of the rack plate and meshes with the shaft gear on the guide rail arm on the same side.
2. The linkage closing mechanism for a flip-top injection mold according to claim 1, characterized in that: A reduced diameter section is provided on the pressure shaft, and several buffer sleeves are spaced apart in the reduced diameter section, with a spacer sleeve between every two buffer sleeves.
3. The linkage closing mechanism for a flip-top injection mold according to claim 1, characterized in that: Two clutches are symmetrically arranged between the fixed plate and the top and bottom walls of the cylinder seat. Each clutch includes: a limiting plate with a guide groove, grooves on both sides of the guide groove, a front guide slope at the front end of the groove, a clutch plate slidably engaged in the guide groove, the clutch plate being connected to the rack plate, a clutch groove flush with the groove, a rear guide slope at the rear end of the clutch plate, a wedge-shaped surface on the front side wall of the clutch block, and a spring between the clutch block and the guide plate, the clutch block abutting against the groove and the clutch groove under the spring force.
4. The linkage closing mechanism for a flip-top injection mold according to claim 3, characterized in that: The connection structure between the clutch block and the guide rail plate is as follows: an installation groove is provided on the guide rail plate, a guide sleeve is provided in the installation groove, the clutch block is slidably locked in the guide sleeve, a spring hole is provided on the clutch block, and the spring is locked in the spring hole and abuts against the installation groove.
5. The linkage closing mechanism for a flip-top injection mold according to claim 1, characterized in that: A U-shaped limiting plate is installed on the guide arm, and the U-shaped limiting plate presses against the rack.
6. The linkage closing mechanism for a flip-top injection mold according to claim 1, characterized in that: Several anti-collision blocks are installed on the rear side wall of the fixed plate.
7. The linkage closing mechanism for a flip-top injection mold according to claim 1, characterized in that: A front sensor switch is installed on the bottom wall of the fixed plate, a rear sensor switch is installed on the bottom wall of the cylinder seat, a front sensor plate that cooperates with the front sensor switch is installed on the bottom wall of the rack plate, and a rear sensor plate that cooperates with the rear sensor switch is installed on the bottom wall of the guide rail plate.