Die lifting device of packaging machine

Abstract

The utility model discloses a packaging machine die lifting device which comprises a base, a lifting mechanism, a die clamping assembly and a conversion driving device are installed on the base, the lifting mechanism drives a lifting plate in a lifting mode, a cross-shaped limiting hole is formed in the lifting plate, and the die clamping assembly is in sliding fit with the limiting hole. The conversion driving device drives the lifting mechanism and the mold clamping assembly to operate in a conversion mode. The die is convenient to replace, the machining efficiency is improved, manual operation is not needed, and power resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum packaging machine technology, and in particular to a packaging machine mold lifting device. Background Technology

[0002] The lifting device is an important component of vacuum packaging machines. Currently, the lifting device of the lower chamber of vacuum packaging machines is mainly driven by a cylinder to lift and raise the lower chamber to a certain height to seal the upper chamber, thereby achieving the forming or sealing function.

[0003] In related technologies, such as the Chinese patent with application number "CN202420547995.2", entitled "A Packaging Machine Mold Lifting Device", it includes a fixed plate and a lifting plate. The fixed plate is vertically fixed with multiple guide rods, which pass through the lifting plate, allowing the lifting plate to slide up and down along the guide rods. Upper support rods and lower support rods are symmetrically arranged between the fixed plate and the lifting plate. The upper ends of the upper support rods on each side are rotatably connected to the lower surface of the lifting plate, and the lower ends of the lower support rods on each side are rotatably connected to the surface of the fixed plate. The upper and lower support rods on each side are rotatably connected by a connecting shaft. A push plate is arranged between the lower support rods. The two sides of the push plate are rotatably connected to the corresponding connecting shafts on each side by rotating connecting rods. The bottom of the push plate is pushed up and down by a lifting structure fixed by the fixed plate. When the push plate is raised to its maximum state, the upper and lower support rods on each side are vertically aligned in a straight line.

[0004] While the aforementioned patent can prevent the lower mold chamber from falling and effectively ensure the vacuuming effect of vacuum packaging, it still uses a traditional structure for installation and fixation when installing the mold. The process of replacing the mold is relatively cumbersome and affects work efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a packaging machine mold lifting device, which makes mold replacement convenient, improves processing efficiency, and eliminates the need for manual operation, thus saving power resources.

[0006] To achieve the above objectives, a packaging machine mold lifting device is provided, including a base, on which a lifting mechanism, a mold clamping assembly, and a conversion drive device are installed. The lifting mechanism drives a lifting plate to move up and down, and a cross-shaped limiting hole is provided on the lifting plate. The mold clamping assembly slides in cooperation with the limiting hole, and the conversion drive device drives the lifting mechanism and the mold clamping assembly to move in different directions.

[0007] According to the packaging machine mold lifting device, the lifting mechanism includes a lead screw and a slide rod. The lead screw is rotatably mounted on the base. The side wall of the lead screw is threadedly connected to the top of the lifting plate. A follower gear is fixedly connected to the lower side wall of the lead screw. Several slide rods are provided and all are fixedly mounted on the base. The top of the slide rod passes through the top of the lifting plate.

[0008] According to the aforementioned packaging machine mold lifting device, the mold clamping assembly includes a hollow screw, a threaded connecting ring threaded to the side wall of the hollow screw, four connecting parts 1 fixedly fixed at equal intervals to the side wall of the threaded connecting ring, a movable rod rotatably connected to the inner wall of each connecting part 1, a connecting part 2 rotatably connected to the other end of each movable rod, a sliding column fixedly connected to the top of each connecting part 2, a clamping column fixedly connected to the top of each sliding column, a limiting groove formed in the inner wall of the hollow screw, a limiting rod slidably connected to the inner wall of the limiting groove, and a driven gear 2 fixedly connected to the lower side wall of the limiting rod.

[0009] According to the packaging machine mold lifting device, the top end of the hollow screw is rotatably connected to the bottom end of the lifting plate, and the bottom end of the limiting rod is rotatably connected to the top of the base.

[0010] According to the packaging machine mold lifting device, the side walls of the four sliding columns are slidably connected to the inner walls of the corresponding limiting holes.

[0011] According to the packaging machine mold lifting device, the changing drive device includes a hydraulic rod fixedly installed on the base, the movable end of the hydraulic rod is fixedly connected to a fixed frame, the inner wall of the fixed frame is fixedly installed with a motor, and the bottom output end of the motor is fixedly connected to a main gear.

[0012] According to the packaging machine mold lifting device, the main gear meshes with the driven gear one and the driven gear two, and the positions of the main gear and the driven gear one and the driven gear two correspond to each other.

[0013] This utility model has the following beneficial effects:

[0014] 1. Compared with the existing technology, by setting up a mold clamping assembly and changing the drive device, when installing the mold, the mold is placed on the lifting plate. The changing drive device drives the limit rod and hollow screw to rotate through the meshing transmission of gear two. Through the threaded engagement, the threaded connecting ring is driven to descend. In conjunction with the limit hole, the sliding column slides along the limit hole, driving each movable rod to retract inward, thereby driving the four clamping columns to clamp and fix the mold. The clamping is stable, the mold replacement is convenient, and the processing efficiency is improved.

[0015] 2. Compared with the existing technology, by setting up a lifting mechanism and a changing drive device, when driving the lifting plate to rise and fall, the changing drive device changes the position of the motor until the side wall of the main gear meshes with the side wall of the driven gear. The changing drive device drives the lead screw to rotate, and with the limit of the slide rod, the lifting plate and the mold can be driven to rise and fall. The lifting is stable, and the lifting mechanism and the mold clamping assembly can be changed to run, saving power resources. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This utility model relates to a three-dimensional packaging machine mold lifting device. Figure 1 ;

[0018] Figure 2 This utility model relates to a three-dimensional packaging machine mold lifting device. Figure 2 ;

[0019] Figure 3 This is a structural diagram of a mold clamping component of a packaging machine mold lifting device according to the present invention;

[0020] Figure 4 This is a perspective view of the transformation drive device of a packaging machine mold lifting device according to the present invention.

[0021] Legend:

[0022] 1. Base; 2. Lifting mechanism; 3. Lifting plate; 4. Mold clamping assembly; 5. Transformation drive device; 201. Lead screw; 202. Slide rod; 203. Driven gear one; 301. Limiting hole; 401. Hollow screw; 4011. Limiting groove; 402. Threaded connecting ring; 403. Connector one; 404. Movable rod; 405. Connector two; 406. Slide column; 407. Clamping column; 408. Limiting rod; 409. Driven gear two; 501. Hydraulic rod; 502. Fixing frame; 503. Motor; 504. Main gear. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-4 This utility model provides a packaging machine mold lifting device, which includes a base 1, a lifting mechanism 2, a mold clamping assembly 4, and a conversion drive device 5 installed on the base 1. The lifting mechanism 2 drives the lifting plate 3 to lift, and the lifting plate 3 has a cross-shaped limiting hole 301. The mold clamping assembly 4 is slidably engaged with the limiting hole 301. The conversion drive device 5 drives the lifting mechanism 2 and the mold clamping assembly 4 to operate in different ways.

[0025] The lifting mechanism 2 includes a lead screw 201 and a slide bar 202. The lead screw 201 is rotatably mounted on the base 1. The side wall of the lead screw 201 is threadedly connected to the top of the lifting plate 3. A gear 203 is fixedly connected to the lower side wall of the lead screw 201. Several slide bars 202 are provided and are all fixedly mounted on the base 1. The top of the slide bar 202 passes through the top of the lifting plate 3.

[0026] The mold clamping assembly 4 includes a hollow screw 401. A threaded connecting ring 402 is threadedly connected to the side wall of the hollow screw 401. Four connecting parts 403 are equidistantly fixed to the side wall of the threaded connecting ring 402. Each connecting part 403 has a movable rod 404 rotatably connected inside it. The other end of each movable rod 404 is rotatably connected to a connecting part 405. A sliding column 406 is fixedly connected to the top of each connecting part 405. The side walls of the four sliding columns 406 are all connected to… The inner wall of the corresponding limiting hole 301 is slidably connected, and the top of the sliding column 406 is fixedly connected to the clamping column 407. The inner wall of the hollow screw 401 is provided with a limiting groove 4011. The inner wall of the limiting groove 4011 is slidably connected to the limiting rod 408. The lower side wall of the limiting rod 408 is fixedly connected to the second gear 409. The top of the hollow screw 401 is rotatably connected to the bottom of the lifting plate 3, and the bottom of the limiting rod 408 is rotatably connected to the top of the base 1.

[0027] The conversion drive device 5 includes a hydraulic rod 501 fixedly installed on the base 1. The movable end of the hydraulic rod 501 is fixedly connected to a fixed frame 502. A motor 503 is fixedly installed on the inner wall of the fixed frame 502. The bottom output end of the motor 503 is fixedly connected to a main gear 504. The main gear 504 meshes with the driven gear 1 203 and the driven gear 2 409, and the positions of the main gear 504, driven gear 1 203, and driven gear 2 409 correspond to each other.

[0028] By using the mold clamping assembly 4 and the drive device 5, when installing the mold, the mold is placed on the lifting plate 3. Then, the motor 503 is started to drive the main gear 504 to rotate in the forward direction. Through the meshing transmission of the gear 409, the limiting rod 408 and the hollow screw 401 are driven to rotate. Through the threaded engagement, the threaded connecting ring 402 is driven to descend. With the limit hole 301, the sliding column 406 slides along the limit hole 301, which drives each movable rod 404 to retract inward. This, in turn, drives the four clamping columns 407 to clamp and fix the mold. The clamping is stable. When the mold is replaced, the output shaft of the motor 503 can be rotated in the reverse direction to release the clamping of the mold. The mold replacement is convenient and the processing efficiency is improved. When the lifting plate 3 is raised and lowered, the limiting rod 408 slides in the limiting groove 4011, which does not affect the lifting operation and provides conditions for driving the hollow screw 401 to rotate.

[0029] When the lifting plate 3 is raised or lowered by the lifting mechanism 2 and the driving device 5, the hydraulic rod 501 retracts the movable rod 404 to drive the motor 503 to move until the side wall of the main gear 504 meshes with the side wall of the driven gear 203. The motor 503 starts to drive the main gear 504 to rotate in the forward direction. Through the meshing transmission of the driven gear 203, the lead screw 201 is driven to rotate. With the limit of the slide rod 202, the lifting plate 3 and the mold can be driven to rise. When the output shaft of the motor 503 rotates in the reverse direction, the lifting plate 3 and the mold can be driven to fall. The lifting is stable and can switch between driving the lifting mechanism 2 and the mold clamping assembly 4, saving power resources.

[0030] Working principle: During use, when installing the mold, place the mold on the lifting plate 3, then start the motor 503 to drive the main gear 504 to rotate in the forward direction. Through the meshing transmission of the second gear 409, the limiting rod 408 and the hollow screw 401 rotate. Through the threaded engagement, the threaded connecting ring 402 descends, engaging with the limiting hole 301. The sliding column 406 slides along the limiting hole 301, causing each movable rod 404 to retract inward, thereby causing the four clamping columns 407 to clamp the mold. When the lifting plate 3 is raised and lowered, the hydraulic rod 501 retracts the movable rod 404, which drives the motor 503 to move until the side wall of the main gear 504 meshes with the side wall of the driven gear 203. The motor 503 then drives the main gear 504 to rotate in the forward direction. Through the meshing transmission of the driven gear 203, the lead screw 201 is driven to rotate. With the limit of the slide rod 202, the lifting plate 3 and the mold can be raised. This allows for the switching of the driving lifting mechanism 2 and the mold clamping assembly 4, saving power resources.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A packaging machine mould lifting device comprising a base (1), characterised in that, The base (1) is equipped with a lifting mechanism (2), a mold clamping assembly (4), and a conversion drive device (5). The lifting mechanism (2) drives the lifting plate (3) to lift. The lifting plate (3) has a cross-shaped limiting hole (301). The mold clamping assembly (4) slides with the limiting hole (301). The conversion drive device (5) converts the operation of the lifting mechanism (2) and the mold clamping assembly (4).

2. A packaging machine mold lifting device according to claim 1, characterized in that The lifting mechanism (2) includes a lead screw (201) and a slide rod (202). The lead screw (201) is rotatably mounted on the base (1). The side wall of the lead screw (201) is threadedly connected to the top of the lifting plate (3). A gear (203) is fixedly connected to the lower side wall of the lead screw (201). Several slide rods (202) are provided and are all fixedly mounted on the base (1). The top of the slide rod (202) passes through the top of the lifting plate (3).

3. A packaging machine mold lifting device according to claim 1, characterized in that, The mold clamping assembly (4) includes a hollow screw (401), a threaded connecting ring (402) is threaded to the side wall of the hollow screw (401), four connecting parts (403) are fixedly connected at equal intervals to the side wall of the threaded connecting ring (402), each connecting part (403) is rotatably connected to a movable rod (404), the other end of each movable rod (404) is rotatably connected to a connecting part (405), the top of each connecting part (405) is fixedly connected to a sliding column (406), the top of each sliding column (406) is fixedly connected to a clamping column (407), the inner wall of the hollow screw (401) is provided with a limiting groove (4011), the inner wall of the limiting groove (4011) is slidably connected to a limiting rod (408), and the lower side wall of the limiting rod (408) is fixedly connected to a driven gear (409).

4. A packaging machine mold lifting device according to claim 3, characterized in that The top end of the hollow screw (401) is rotatably connected to the bottom end of the lifting plate (3), and the bottom end of the limiting rod (408) is rotatably connected to the top of the base (1).

5. A packaging machine mold lifting device according to claim 3, characterized in that, The sidewalls of the four sliding pillars (406) are slidably connected to the inner wall of the corresponding limiting hole (301).

6. A packaging machine mold lifting device according to claim 1, characterized in that The conversion drive device (5) includes a hydraulic rod (501) fixedly installed on the base (1). The movable end of the hydraulic rod (501) is fixedly connected to a fixing frame (502). A motor (503) is fixedly installed on the inner wall of the fixing frame (502). A main gear (504) is fixedly connected to the bottom output end of the motor (503).

7. A packaging machine mold lifting device according to claim 6, characterized in that The main gear (504) meshes with the driven gear one (203) and the driven gear two (409), and the positions of the main gear (504) and the driven gear one (203) and the driven gear two (409) are corresponding.

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