A sheet decompression device

Abstract

The utility model relates to sheet pressure reducing device technical field discloses a sheet pressure reducing device, including the pivot, pivot installation has the separation subassembly, the separation subassembly includes the first vane and the second vane of installation on the pivot, the first vane and the second vane can alternately insert the layered pressure reduction of stacked plate material, the gasket is sleeved on the pivot, and the gasket is clamped between the first vane and the second vane for adjusting the axial spacing of the first vane and the second vane, drive assembly drives the pivot rotation around the own axis through the transmission assembly, and the pivot rotation drives the separation subassembly synchronous rotation, makes the separation subassembly interpenetration or exit the clearance of two adjacent plate materials, the utility model discloses through the cooperation of pivot, separation subassembly, drive assembly and transmission assembly, realizes the layered pressure reduction of stacked plate material, avoids the deformation of bottom layer plate material, guarantees the synchronous operation with original unloading mechanism simultaneously, promotes the unloading stability and production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of plate pressure reducing devices, specifically a plate pressure reducing device. Background Technology

[0002] In the automated production process of a cartoning machine, the feeding mechanism is responsible for accurately and efficiently conveying the sheet materials (such as carton blanks, product liners, etc.) to the next process. However, if too much material is stacked in the feeding mechanism of the cartoning machine, the bottom sheet will deform, resulting in unstable feeding.

[0003] In existing technologies, some companies alleviate the problem by manually reducing the number of boards stacked at one time, but this requires increasing the frequency of material replenishment, which increases labor costs and cannot fundamentally solve the problem of concentrated pressure. A few other solutions use lifting support blocks for segmentation, but the support blocks are prone to interference with the boards when they are raised and lowered, and it is difficult to achieve precise synchronization with the original feeding mechanism, thus limiting their applicability. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a plate pressure reducing device.

[0005] The technical solution adopted by this utility model is as follows: a plate pressure reducing device, installed on the feeding mechanism of a cartoning machine, is used to reduce the pressure of the upper stacked plates on the lower plate. It includes a rotating shaft, on which a separating component is installed. The separating component includes a first blade and a second blade installed on the rotating shaft. The first blade and the second blade can be alternately inserted into the stacked plates to perform layered pressure reduction. A shim is sleeved on the rotating shaft and clamped between the first blade and the second blade to adjust the axial distance between the first blade and the second blade.

[0006] The rotating shaft is also equipped with a transmission component, and the transmission component is equipped with a drive component. The drive component drives the rotating shaft to rotate around its own axis through the transmission component. The rotation of the rotating shaft drives the separating component to rotate synchronously, so that either the first blade or the second blade can be inserted into the stacked plate.

[0007] Furthermore, at least two sets of the separating components are arranged at intervals along the axial direction of the rotating shaft to achieve segmented pressure reduction. When there are two sets of separating components on the rotating shaft, the two sets of separating components are inserted into the gaps between the plates at different heights to divide the stacked plates into upper, middle and lower layers, so that the lower plate only bears the weight of the bottom plate.

[0008] Furthermore, the drive component is a motor, and the transmission component includes a drive pulley installed at the output end of the motor. The drive pulley is connected to a driven pulley via a synchronous belt, and the driven pulley is fixedly sleeved on the rotating shaft.

[0009] Furthermore, the rotating shaft is provided in two sets, which are symmetrically arranged on both sides of the sheet along the width direction of the sheet, and the separating components on the two sets of rotating shafts are at the same horizontal height.

[0010] Furthermore, the motor is fixedly connected to the frame of the cartoning machine's feeding mechanism via a fixing plate. A support beam is fixedly connected to the fixing plate, and an auxiliary pulley and a bearing seat are fixedly connected to the support beam. The bearing seat is rotatably connected to the rotating shaft via a bearing. The synchronous belt is sequentially wound between the driving pulley, the auxiliary pulley, and the driven pulley to ensure that the two sets of rotating shafts rotate synchronously.

[0011] Furthermore, the rotating shaft is threaded, and the first and second blades in the separating assembly are both fitted with the rotating shaft through an inner hole with clearance. Two locking nuts are threadedly connected to the rotating shaft, and the two locking nuts abut against the side of the first blade away from the gasket and the side of the second blade away from the gasket, respectively.

[0012] Furthermore, both the first and second blades are arc-shaped, and their radial length is not less than 1 / 3 of the width of the sheet.

[0013] Furthermore, the motor is a servo motor.

[0014] Furthermore, the synchronous belt is a double-sided circular arc tooth synchronous belt.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] This plate pressure reduction device achieves layered pressure reduction of stacked plates through the cooperation of a rotating shaft, a separating component, a driving component, and a transmission component, avoiding deformation of the bottom plate while ensuring synchronous operation with the original feeding mechanism, thus improving feeding stability and production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural schematic diagram provided for an embodiment of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention assembled with the feeding mechanism of a cartoning machine.

[0020] Figure description: 1-rotating shaft, 2-separation assembly, 201-first blade, 202-second blade, 203-shim, 3-transmission assembly, 301-driving pulley, 302-synchronous belt, 303-driven pulley, 4-motor, 5-fixed plate, 6-support beam, 7-auxiliary pulley, 8-bearing seat. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] The following is combined Figures 1-2 This utility model will be described in detail.

[0025] Example

[0026] Example 1

[0027] Depend on Figure 1-2 A sheet pressure relief device, installed on the unloading mechanism of a cartoning machine, is used to reduce the pressure of stacked sheets on lower sheets. It includes a rotating shaft 1, on which a separating component 2 is mounted. The separating component 2 includes a first blade 201 and a second blade 202 mounted on the rotating shaft 1, and the first blade 201 and the second blade 202 are staggered along the circumference of the rotating shaft 1, allowing the first blade 201 and the second blade 202 to alternately insert into the stacked sheets for layered pressure relief.

[0028] A shim 203 is fitted on the rotating shaft 1. The shim 203 is clamped between the first blade 201 and the second blade 202 and is used to adjust the axial distance between the first blade 201 and the second blade 202 to facilitate the adaptation of plates of different thicknesses.

[0029] A transmission assembly 3 is also installed on the rotating shaft 1, and a drive assembly is installed on the transmission assembly 3. The drive assembly drives the rotating shaft 1 to rotate around its own axis through the transmission assembly 3. The rotation of the rotating shaft 1 drives the separating assembly 2 to rotate synchronously, so that either the first blade 201 or the second blade 202 can be inserted into the stacked plate.

[0030] The first blade 201 and the second blade 202 are arranged on the rotating shaft 1 in a specific spatial relationship, meaning that the two blades have a certain angular difference in the circumferential direction and are not coplanar. When the rotating shaft 1 rotates, the first blade 201 first inserts into the gap between the boards to initially separate and support the upper board. Then, the second blade 202 inserts into the gap between adjacent boards to further optimize the separation effect, ensuring that only one board can fall smoothly at a time, achieving precise single-sheet feeding. At the same time, this alternating insertion method more effectively disperses the pressure on the upper board, preventing the lower board from deforming due to excessive weight, and ensuring the stability and efficiency of the cartoning machine's feeding process.

[0031] At least two sets of partition components 2 are arranged at intervals along the axial direction of the rotating shaft 1 to achieve segmented pressure reduction. When there are two sets of partition components 2 on the rotating shaft 1, the two sets of partition components 2 are inserted into the gaps between the plates at different heights to divide the stacked plates into upper, middle and lower layers, so that the lower plate only bears the weight of the bottom plate.

[0032] The drive component is motor 4, which is preferably a servo motor. The servo motor can achieve precise angle control and can run synchronously with the original cartoning machine's feeding device to ensure the timing accuracy of single sheet feeding.

[0033] The transmission assembly 3 includes a drive pulley 301 installed at the output end of the motor 4. The drive pulley 301 is connected to a driven pulley 303 via a synchronous belt 302. The driven pulley 303 is fixedly sleeved on the rotating shaft 1.

[0034] Two sets of rotating shafts 1 are provided. The two sets of rotating shafts 1 are symmetrically arranged on both sides of the sheet material along the width direction, and the separating components on the two sets of rotating shafts 1 are at the same horizontal height to ensure that the clamping force of the separating components 2 on the sheet material is balanced and to prevent the sheet material from shifting.

[0035] Motor 4 is fixedly connected to the frame of the cartoning machine's unloading mechanism via a fixing plate 5. A support beam 6 is fixedly connected to the fixing plate 5, and an auxiliary pulley 7 and a bearing seat 8 are fixedly connected to the support beam 6. The bearing seat 8 is rotatably connected to the rotating shaft 1 via a bearing, providing stable support for the rotating shaft 1. The auxiliary pulley 7 can tension and guide the synchronous belt 302. The tension can be achieved by adjusting the installation position of the auxiliary pulley 7 on the support beam 6, ensuring that the two sets of rotating shafts 1 rotate synchronously, thereby ensuring that the blades of the two side separator components 2 are inserted or withdrawn synchronously, avoiding multiple pieces of material being unloaded or the board material shifting due to the delayed action of blades on one side.

[0036] The synchronous belt 302 is sequentially wound around the driving pulley 301, the auxiliary pulley 7 and the driven pulley 303 to ensure that the two sets of rotating shafts 1 rotate synchronously.

[0037] Both the first blade 201 and the second blade 202 are arc-shaped, and their radial length is not less than 1 / 3 of the width of the sheet, ensuring that the blades can stably bear the weight of the sheet above after being inserted into the gap between the sheets.

[0038] The timing belt 302 is a double-sided circular arc tooth timing belt 302. When the two sets of rotating shafts 1 are arranged symmetrically, and the timing belt 302 needs to drive the driven pulleys 303 on both sides at the same time, the double-sided tooth structure can avoid the timing belt from flipping over and ensure transmission stability. If only one side of the rotating shaft 1 is driven, a single-sided circular arc tooth timing belt can be selected. It needs to be adapted according to the actual transmission requirements.

[0039] Furthermore, the double-sided arc toothed synchronous belt features high transmission accuracy, smooth transmission, low noise, and good wear resistance, ensuring the precise transmission of the rotation angle of the shaft 1 and providing stable power for single sheet feeding.

[0040] Specifically, when using this plate pressure reducing device, firstly, the motor 4 is fixed to the frame of the cartoning machine's feeding mechanism via the fixing plate 5, and the support beam 6 with auxiliary pulley 7 and bearing seat 8 is fixedly connected to the fixing plate 5 to complete the initial installation of the device;

[0041] Then, the shaft 1 with the separator 2 and the driven pulley 303 is installed on the bearing seat 8, the driving pulley 301 is installed on the output end of the motor 4, and the synchronous belt 302 is sequentially wound around the driving pulley 301, the auxiliary pulley 7 and the driven pulley 303, thus completing the overall installation of the device.

[0042] When the feeding mechanism of the cartoning machine starts running, the motor 4 starts, and its output end drives the drive pulley 301 to rotate. The drive pulley 301 transmits power to the driven pulley 303 through the synchronous belt 302. At the same time, the auxiliary pulley 7 tensions and guides the synchronous belt 301 to ensure stable power transmission. The driven pulley 303 drives the rotating shaft 1 to rotate around its own axis. Since the two sets of rotating shafts 1 achieve synchronous rotation through the cooperation of the synchronous belt 302 and the auxiliary pulley 7, the separating components 2 on both sides of the rotating shaft 1 rotate synchronously. The first blade 201 and the second blade 202 are alternately inserted into the gap between the boards to realize the falling of a single board.

[0043] The rotating shaft 1 rotates under the drive of the servo motor 4. In the initial position, the first blade 201 of the lower layer separator 2 is inserted between the bottom plate and the adjacent plate above, and the first blade 201 of the upper layer separator 2 is inserted into the gap of the stacked plates above, supporting the weight of the upper plate. At this time, the stacked plates are divided into upper, middle and lower layers, and the lower plate only bears its own weight, thus reducing pressure.

[0044] When the cartoning machine control system sends a feeding signal, the rotating shaft 1 rotates, causing the first blade 201 of the lower layer separator component 2 to exit the gap between the boards along a circumferential trajectory (no longer blocking). At the same time, the second blade 202 of the lower layer rotates synchronously to the insertion position and inserts into the gap above the bottom board. At this time, the bottom board enters the feeding channel under the action of gravity, while the insertion of the second blade 202 blocks the middle layer board above, so that only a single board falls.

[0045] While the lower partition component is discharging material, the upper partition component rotates synchronously with the rotating shaft 1: the first blade 201, which was originally inserted above the middle layer board, exits the gap (no longer blocking the upper layer board), and the second blade 202, which was originally waiting, rotates synchronously to the insertion position and inserts below the upper stacked board (blocking the remaining upper layer board); at this time, the bottommost board in the upper stacked board falls under the action of gravity and replenishes the middle layer position, completing the action of "one board falling from the upper layer to replenish"; after the replenishment is completed, the device restores the stable state of the upper, middle and lower layers of board, the weight of the upper layer board is still supported by the upper partition component, and the middle layer board only bears its own weight, continuously maintaining the pressure reduction effect.

[0046] The rotating shaft 1 rotates continuously in one direction, and the lower and upper partition components repeatedly perform the coordinated action of "feeding and replenishing": each time a rotation cycle is completed (corresponding to one blade alternation), a sheet material falls from the lower layer, and a sheet material falls from the upper layer simultaneously to replenish the middle layer, always maintaining a stable three-layer sheet material structure; throughout the process, the servo motor 4 provides real-time feedback of its rotation speed through an encoder, keeping pace with the subsequent conveying mechanism of the cartoning machine, avoiding problems such as "empty material" (no sheet material in the lower layer) or "excess material" (multiple sheet materials stacked in the middle layer); at the same time, since the weight of the upper layer sheet material is always supported by the upper partition component, the lower sheet material (middle and lower layers) only bears its own weight, completely avoiding sheet material deformation caused by excessive pressure.

[0047] Example 2

[0048] The difference between this embodiment and Embodiment 1 is that the rotating shaft 1 is threaded, and the first blade 201 and the second blade 202 in the separating assembly 2 are both clearance-fitted with the rotating shaft 1 through their inner holes. Two locking nuts are threaded onto the rotating shaft 1, with the two locking nuts respectively abutting against the side of the first blade 201 away from the washer 203 and the side of the second blade 202 away from the washer 203. The locking nuts axially lock and fix the first blade 201, the washer 203, and the second blade 202 to the rotating shaft 1, preventing the separating assembly 2 from moving axially along the rotating shaft 1.

[0049] In Embodiment 1, the separator component 2 (first blade 201, second blade 202, and gasket 203) can be fixed to the rotating shaft 1 by welding. However, in this embodiment, threads are machined on the rotating shaft 1, and a locking nut is used to achieve a detachable connection of the separator component, which facilitates quick replacement in actual situations.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sheet pressure relief device, installed on the feeding mechanism of a cartoning machine, for reducing the pressure of stacked sheets above on sheets below, characterized in that: Includes a rotating shaft (1), on which a separating component (2) is mounted. The separating component (2) includes a first blade (201) and a second blade (202) mounted on the rotating shaft (1). The first blade (201) and the second blade (202) can be alternately inserted into stacked plates for decompression. A shim (203) is sleeved on the rotating shaft (1). The shim (203) is clamped between the first blade (201) and the second blade (202) for adjusting the axial distance between the first blade (201) and the second blade (202). A transmission assembly (3) is also installed on the rotating shaft (1), and a drive assembly is installed on the transmission assembly (3). The drive assembly drives the rotating shaft (1) to rotate around its own axis through the transmission assembly (3). The rotation of the rotating shaft (1) drives the separating assembly (2) to rotate synchronously, so that either the first blade (201) or the second blade (202) can be inserted into the stacked plate.

2. The plate pressure reducing device according to claim 1, characterized in that: The separating components (2) are arranged at least two sets along the axial direction of the rotating shaft (1) to achieve segmented pressure reduction. When there are two sets of separating components (2) on the rotating shaft (1), the two sets of separating components (2) are inserted into the gaps between the plates at different heights to divide the stacked plates into upper, middle and lower layers, so that the lower plate only bears the weight of the bottom plate.

3. The plate pressure reducing device according to claim 1, characterized in that: The drive component is a motor (4), and the transmission component (3) includes a drive pulley (301) installed at the output end of the motor (4). The drive pulley (301) is connected to a driven pulley (303) via a synchronous belt (302). The driven pulley (303) is fixedly sleeved on the rotating shaft (1).

4. The plate pressure reducing device according to claim 3, characterized in that: The rotating shaft (1) is provided in two sets. The two sets of rotating shafts (1) are symmetrically arranged on both sides of the sheet along the width direction of the sheet, and the separation components on the two sets of rotating shafts (1) are at the same horizontal height.

5. The plate pressure reducing device according to claim 4, characterized in that: The motor (4) is fixedly connected to the frame of the boxing machine feeding mechanism via a fixing plate (5). A support beam (6) is fixedly connected to the fixing plate (5). An auxiliary pulley (7) and a bearing seat (8) are fixedly connected to the support beam (6). The bearing seat (8) is rotatably connected to the rotating shaft (1) via a bearing. The synchronous belt (302) is sequentially wound between the driving pulley (301), the auxiliary pulley (7), and the driven pulley (303) to ensure that the two sets of rotating shafts (1) rotate synchronously.

6. The plate pressure reducing device according to claim 1, characterized in that: The rotating shaft (1) is threaded. The first blade (201) and the second blade (202) in the separating assembly (2) are both clearance-fitted with the rotating shaft (1) through the inner hole. The rotating shaft (1) is threaded with two locking nuts. The two locking nuts abut against the side of the first blade (201) away from the gasket (203) and the side of the second blade (202) away from the gasket (203), respectively.

7. The plate pressure reducing device according to claim 1, characterized in that: The first blade (201) and the second blade (202) are both arc-shaped, and their radial length is not less than 1 / 3 of the width of the sheet.

8. The plate pressure reducing device according to claim 3, characterized in that: The motor (4) is a servo motor.

9. The plate pressure reducing device according to claim 3, characterized in that: The synchronous belt (302) is a double-sided circular arc tooth synchronous belt.

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