A stable cartoning machine pushing mechanism
Patent Information
- Application Number
- CN202522194789.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-17
AI Technical Summary
[0003]然而市场上装盒机推料机构的运行稳定性较差，经常会出现以下现象，一是推料机构在向前推料过程中，当出现挤压到料包或者说明书时，推动器仍会继续运行，这会导致损坏料包、说明书和相关零部件，且会影响下一包装盒装盒；二是推料机构向前推料入盒后回收过程中叉板容易将料包或说明书带离包装盒，这会影响装盒的准确率，且影响机构正常运行
[0017]本实用新型在正常运行的情况下，推杆驱动器驱动中空推块将料包和说明书等推入包装盒中，随后顶针驱动器驱动顶针以带动顶针推块二次推料，二次推料可避免推杆驱动器回收过程中将料包或说明书带离包装盒，这提高了装盒的准确率；在运行过程中，防挤压结构的限位件会抵接在滑动槽中以限位中空推杆晃动，然而当中空推杆受到料包和说明书等较大反作用力时，限位件会脱离滑动槽以使中空推杆脱离限位并带动推杆安装板向后移动，当传感器检测不到推杆安装板，控制器控制推杆驱动器停止运行，这可避免损坏料包、说明书或相关零部件；两个结构的设计均有效地提高了装盒机推料机构的运行稳定性。
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Figure CN224782464U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cartoning technology, specifically to a stable material pushing mechanism for a cartoning machine. Background Technology
[0002] The feeding mechanism of a cartoning machine is a key component that pushes the material package and instruction manual into the packaging box. The feeding mechanism of a cartoning machine on the market generally includes a pusher, a push rod, and a push block. The pushing end of the pusher is connected to the push rod, and the push block is fixed at the end of the push rod away from the pusher. The front end of the push block extends with a fork plate. When running, the pusher drives the push rod forward, which in turn drives the push block and the fork plate to support and push the material package and instruction manual into the packaging box.
[0003] However, the feeding mechanism of cartoning machines on the market has poor operational stability, and the following phenomena often occur: First, when the feeding mechanism pushes the material forward and squeezes the material bag or instruction manual, the pusher will continue to run, which will cause damage to the material bag, instruction manual and related parts, and will also affect the next cartoning; Second, during the recovery process after the feeding mechanism pushes the material forward into the box, the fork plate is prone to carrying the material bag or instruction manual away from the packaging box, which will affect the accuracy of cartoning and affect the normal operation of the mechanism. Utility Model Content
[0004] To address the existing problems, this utility model proposes a stable feeding mechanism for a cartoning machine, which improves the operational stability of the feeding mechanism and increases the accuracy of cartoning.
[0005] The technical solution of this utility model is implemented as follows:
[0006] A stable feeding mechanism for a cartoning machine includes a push rod mechanism, a secondary ejector pin mechanism, and an anti-extrusion structure. The push rod mechanism includes a push rod driver, a hollow push rod, and hollow push blocks and a push rod mounting plate fixed at the front and rear ends of the hollow push rod. The push rod driver is connected to the hollow push rod.
[0007] The secondary ejector mechanism includes an ejector driver, an ejector pin, and an ejector pin push block. The ejector driver is connected to the ejector pin drive. The other end of the ejector pin passes through a hollow push rod and is connected to the ejector pin push block. The ejector pin push block extends and retracts within the hollow push block.
[0008] The anti-pinch structure includes a limiting plate, a limiting component, and a sensor. The limiting plate has a limiting groove. The hollow push rod has a sliding groove in front of the push rod mounting plate that communicates with the limiting groove. The limiting component is located in the limiting groove and moves against the sliding groove to limit the hollow push rod. The sensor is located behind the limiting plate to detect the position of the push rod mounting plate.
[0009] Preferably, the limiting component includes a steel ball and a spring, wherein the steel ball moves against the sliding groove via the spring to limit the movement of the hollow push rod.
[0010] Preferably, the sliding groove is a V-shaped groove.
[0011] Preferably, the limiting plate has a through groove and a horizontal locking groove below the limiting groove, the hollow push rod passes through the through groove and is horizontally limited in the horizontal locking groove by the locking member.
[0012] Preferably, the feeding mechanism of the cartoning machine further includes a horizontal slide rail, and the push rod mechanism further includes a push rod bracket. The hollow push rod is fixed on the push rod bracket by a limiting plate. The push rod bracket is driven and connected to the push rod driver and is slidably arranged on the horizontal slide rail.
[0013] Preferably, the bottom front end of the hollow push block is provided with a fork plate, the ejector pin push block matches the inner cavity of the hollow push block, and the bottom of the ejector pin push block extends to the fork plate.
[0014] Preferably, the upper and lower parts of the hollow push block and the fork plate are provided with limiting rails, and the upper and lower parts of the push block slide in the limiting rails.
[0015] Preferably, the feeding mechanism of the cartoning machine further includes a lower limit mechanism, which includes a lower limit driver, a lower limit bracket, and a lower limit block that matches the opening of the hopper. The lower limit driver is driven to the lower limit bracket, and the lower limit block is fixed on the lower limit bracket.
[0016] Compared with the prior art, the present invention has the following advantages:
[0017] Under normal operating conditions, the push rod driver drives the hollow push block to push the material package and instruction manual into the packaging box. Subsequently, the ejector pin driver drives the ejector pin to push the ejector pin push block a second time. This second push prevents the material package or instruction manual from being carried away from the packaging box during the push rod driver's retraction process, thus improving the accuracy of boxing. During operation, the limiting component of the anti-compression structure abuts against the sliding groove to limit the hollow push rod's swaying. However, when the hollow push rod is subjected to a large reaction force from the material package and instruction manual, the limiting component will disengage from the sliding groove, causing the hollow push rod to disengage and drive the push rod mounting plate to move backward. When the sensor no longer detects the push rod mounting plate, the controller controls the push rod driver to stop operating, which avoids damage to the material package, instruction manual, or related components. The design of both structures effectively improves the operational stability of the boxing machine's pushing mechanism. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall material pushing mechanism of the cartoning machine of this utility model;
[0020] Figure 2 This is a front cross-sectional view of the feeding mechanism of the cartoning machine of this utility model;
[0021] Figure 3 for Figure 2 Enlarged schematic diagram of the anti-extrusion structure at point A;
[0022] Figure 4 This is a schematic diagram showing the cooperation between the hollow push block and the ejector pin push block in this utility model.
[0023] Attached image labels:
[0024] 1. Push rod mechanism; 11. Hollow push rod; 12. Hollow push block; 121. Limiting rail; 13. Push rod mounting plate; 14. Sliding groove; 15. Push rod bracket; 16. Horizontal slide rail; 17. Fork plate; 2. Secondary ejector mechanism; 21. Ejector driver; 22. Ejector; 23. Ejector push block; 3. Anti-extrusion structure; 31. Limiting plate; 32. Limiting component; 321. Steel ball; 322. Spring; 33. Sensor; 34. Limiting groove; 35. Through groove; 36. Horizontal locking groove; 4. Lower limit mechanism; 41. Lower limit driver; 42. Lower limit bracket; 43. Lower limit block; 5. Hopper. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] like Figures 1 to 4 The present invention provides a stable feeding mechanism for a cartoning machine, including a push rod mechanism 1, a secondary ejector pin mechanism 2, and an anti-squeezing structure 3. The push rod mechanism 1 includes a push rod driver, a hollow push rod 11, a hollow push block 12 fixed to the front and rear ends of the hollow push rod 11, and a push rod mounting plate 13. The push rod driver is driven to the hollow push rod 11, that is, the push rod driver can drive the hollow push rod 11 to move back and forth, thereby driving the hollow push block 12 and the push rod mounting plate 13 to move back and forth together.
[0029] like Figure 2 and Figure 4 As shown, the secondary ejector mechanism 2 includes an ejector driver 21, an ejector 22, and an ejector push block 23. The ejector driver 21 is driven to the ejector 22. The other end of the ejector 22 passes through the hollow push rod 11 and is connected to the ejector push block 23. The ejector push block 23 extends and retracts in the hollow push block 12. That is, the ejector driver 21 can drive the ejector 22 to move back and forth in the inner cavity of the hollow push rod 11, thereby driving the ejector push block 23 to extend and retract in the inner cavity of the hollow push block 12.
[0030] like Figure 3As shown, the anti-pinch structure 3 includes a limiting plate 31, a limiting member 32, and a sensor 33. The limiting plate 31 has a limiting groove 34. The hollow push rod 11 has a sliding groove 14 in front of the push rod mounting plate 13, which communicates with the limiting groove 34. In this embodiment, the limiting member 32 includes a steel ball 321 and a spring 322. The sliding groove 14 is a V-shaped groove, and the steel ball 321 matches the V-shaped groove. The limiting member 32, i.e., the steel ball 321 and the spring 322, are all located in the limiting groove 34. The steel ball 321 moves against the sliding groove 14 through the spring 322 to limit the hollow push rod 11. The sensor 33 is located behind the limiting plate 31 to detect the position of the push rod mounting plate 13. Specifically, the limiting member 32 moving against the sliding groove 14 includes two states: the steel ball 321 abuts against the sliding groove 14 and the steel ball 321 under the action of the reaction force. Disengaging from the sliding groove 14, the limiting member 32 also has two states in which it restricts the hollow push rod 11. First, the limiting member 32 restricts the hollow push rod 11, providing a locking function. The wobbling of the limiting push rod 11 also ensures a tight connection between the hollow push rod 11 and the anti-extrusion structure 3. In this state, the push rod mounting plate 13 is positioned near the rear of the limiting plate 31, meaning it is within the detection range of the sensor 33. Second, under the action of the reaction force, the hollow push rod 11 disengages from the limiting member 32, causing the push rod mounting plate 13 to move backward away from the limiting plate 31. In this state, the push rod mounting plate 13 is away from the rear of the limiting plate 31, causing it to leave the detection range of the sensor 33. The sensor 33 is connected to the main controller of the feeding mechanism to transmit signal changes to the main controller.
[0031] In the initial state, the push rod mechanism 1 is located outside the hopper 5 on the feeding conveyor line of the cartoning machine, the ejector pin push block 23 is located in the hollow push block 12, and the limiting member 32 abuts against the sliding groove 14 to make the hollow push rod 11 and the anti-compression structure 3 tightly connected. The push rod mounting plate 13 is set near the rear side of the limiting plate 31, that is, within the detection range of the sensor 33. During normal operation, when the hopper 5 is conveyed by the feeding conveyor line of the cartoning machine and aligned with the packaging box on the packaging box conveyor line, the push rod driver drives the hollow push rod 11 to move horizontally forward, driving the hollow push block 12 to push the material package and instruction manual into the packaging box. During this process, the push rod mounting plate 13 and the anti-compression structure 3 also move forward together. Subsequently, the ejector pin driver 21 drives the ejector pin 22 to move forward in the inner cavity of the hollow push rod 11, so as to drive the ejector pin push block 23 to extend out from the inner cavity of the hollow push block 12 to push the material package and instruction manual a second time. After completion, the push rod... The driver and ejector pin driver 21 drive backward in sequence to prepare for boxing the next material bag and instruction manual, etc. Throughout this process, the sensor 33 can detect the push rod mounting plate 13. However, when the push rod driver drives the hollow push block 12 to push the material forward, if jamming occurs, i.e. the hollow push block 12 squeezes the material bag or instruction manual, the hollow push rod 11 will be subjected to the reaction force of the material bag and instruction manual, etc. Under the action of this reaction force, the steel ball 321 will squeeze the spring 322 and slide upward along the sliding groove 14 and finally get out of the sliding groove 14. At this time, the sliding groove 14 is not connected to the limiting groove 34. Then the hollow push rod 11 will continue to drive the push rod mounting plate 13 to move backward and finally leave the detection range of the sensor 33. The sensor 33 transmits this signal to the main controller. After receiving the signal, the main controller controls the push rod driver to stop running and issues an alarm. Then the push rod mechanism 1 and the anti-pinch structure 3 can be reset manually.
[0032] By setting up a secondary ejector mechanism 2 to push the material package and instruction manual a second time, it is possible to prevent the material package or instruction manual from being taken away from the packaging box during the push rod driver's recovery process. This improves the accuracy of boxing and avoids affecting the normal operation of the mechanism. Secondly, by setting up an anti-squeeze structure 3, the push rod driver can be stopped in time and an alarm can be issued to avoid damage to the material package, instruction manual or related parts due to hard squeezing. It can also avoid affecting the boxing of the next packaging box. The design of these two structures can greatly improve the operational stability of the boxing machine's pushing mechanism.
[0033] Furthermore, such as Figure 3 As shown, the limiting plate 31 has a through groove 35 and a horizontal locking groove 36 below the limiting groove 34. The hollow push rod 11 passes through the through groove 35. The upper part of the hollow push rod 11 abuts against the sliding groove 14 through the limiting member 32, and the lower part is horizontally limited in the horizontal locking groove 36 through the locking member. The upper and lower locking can prevent the hollow push rod 11 from rotating during the process of pushing the material into the packaging box, so as to avoid affecting the normal pushing of the material.
[0034] Furthermore, such as Figure 1 and Figure 2 As shown, the cartoning machine's feeding mechanism also includes a horizontal slide rail 16, and the push rod mechanism 1 also includes a push rod bracket 15. The hollow push rod 11 is fixed on the push rod bracket 15 by a limiting plate 31. The push rod bracket 15 is driven and connected to the push rod driver and is slidably arranged on the horizontal slide rail 16. Specifically, in this embodiment, the push rod driver is a push rod motor. The push rod motor drives the push rod bracket 15 to slide horizontally on the horizontal slide rail 16 through a crank rocker arm. The horizontal slide rail 16 ensures the horizontality of the feeding, thereby improving the stability of the feeding.
[0035] Furthermore, such as Figure 2 and Figure 4 As shown, a fork plate 17 extends from the bottom front end of the hollow pusher block 12. Generally, a protrusion is provided at the bottom inner end of the hopper 5 to prevent the instruction manual from sticking to the bottom inner end and affecting the pushing of materials. However, in this embodiment, the upper surface of the fork plate 17 is set below this protrusion so as to support the material bag and instruction manual, etc., and push the materials forward in conjunction with the hollow pusher block 12.
[0036] The ejector pin 23 matches the inner cavity of the hollow ejector block 12. The lower part of the ejector pin 23 extends to the fork plate 17, thus ensuring that the ejector pin 23 can smoothly push the material bag and instruction manual, completely avoiding the phenomenon of the material bag or instruction manual being taken away from the packaging box.
[0037] Furthermore, such as Figure 2 and Figure 4 As shown, the hollow pusher block 12 is provided with limiting rails 121 on the upper and lower parts and on the fork plate 17. The upper and lower parts of the ejector pusher block 23 slide in the limiting rails 121. During the secondary push and ejector drive 21 retraction process, the upper and lower parts of the ejector pusher block 23 slide along the limiting rails 121. The limiting rails 121 can limit the ejector pusher block 23 in three directions: left, right and rear, which can prevent the ejector pusher block 23 from leaving the rail during the push and pull process and increase the controllability of the ejector pusher block 23.
[0038] Furthermore, such as Figure 1 and Figure 2As shown, the feeding mechanism of the cartoning machine also includes a lower limit mechanism 4. The lower limit mechanism 4 includes a lower limit driver 41, a lower limit bracket 42, and a lower limit block 43 that matches the opening of the hopper 5. In this embodiment, the lower limit driver 41 can be a cylinder. The lower limit driver 41 is directly connected to the lower limit bracket 42. The lower limit block 43 is fixed on the lower limit bracket 42. That is, the lower limit driver 41 can drive the lower limit block 43 to move up and down. After the hopper 5 is aligned with the packaging box on the packaging box conveyor line, and before the push rod driver drives the hollow push rod 11 to move forward, the lower limit driver 41 first drives the lower limit block 43 to cover the opening of the hopper 5, and then feeds the material. The setting of the lower limit mechanism 4 can prevent the material bag from exceeding the hopper 5 during the feeding process and affecting the feeding of the packaging box.
[0039] In other embodiments, the lower limit driver is directly connected to the horizontal slide rail 16, and the lower limit bracket 42 is fixed on the horizontal slide rail 16. Therefore, the lower limit driver and the lower limit bracket 42 are indirectly driven. The lower limit driver can indirectly drive the lower limit bracket 42 to drive the lower limit block 43 to cover the opening of the hopper 5.
[0040] In summary, by setting up a secondary ejector mechanism 2 to push the material package and instruction manual a second time, it is possible to prevent the material package or instruction manual from being carried away from the packaging box during the push rod driver's recovery process. This improves the accuracy of boxing and avoids affecting the normal operation of the mechanism. Secondly, by setting up an anti-squeeze structure 3, the push rod driver can be stopped in time and an alarm can be issued to prevent damage to the material package, instruction manual, or related parts due to hard squeezing, and it can also avoid affecting the boxing of the next packaging box. By setting up a lower limit mechanism 4, it is possible to prevent the material package from exceeding the hopper 5 during the pushing process and affecting the pushing of the packaging box. The design of these three structures can greatly improve the operational stability of the boxing machine's pushing mechanism.
[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A stable feeding mechanism for a cartoning machine, characterized in that, It includes a push rod mechanism (1), a secondary ejector pin mechanism (2) and an anti-squeezing structure (3). The push rod mechanism (1) includes a push rod driver, a hollow push rod (11) and a hollow push block (12) fixed at the front and rear ends of the hollow push rod (11) and a push rod mounting plate (13). The push rod driver is driven to connect with the hollow push rod (11). The secondary ejector mechanism (2) includes an ejector driver (21), an ejector (22), and an ejector push block (23). The ejector driver (21) is driven to connect with the ejector (22). The other end of the ejector (22) passes through the hollow push rod (11) and is connected to the ejector push block (23). The ejector push block (23) extends and retracts in the hollow push block (12). The anti-pinch structure (3) includes a limiting plate (31), a limiting member (32), and a sensor (33). The limiting plate (31) has a limiting groove (34). The hollow push rod (11) has a sliding groove (14) in front of the push rod mounting plate (13) that communicates with the limiting groove (34). The limiting member (32) is located in the limiting groove (34) and moves against the sliding groove (14) to limit the hollow push rod (11). The sensor (33) is located behind the limiting plate (31) to detect the position of the push rod mounting plate (13).
2. The stable carton-packing machine pushing mechanism according to claim 1, characterized in that, The limiting member (32) includes a steel ball (321) and a spring (322). The steel ball (321) moves against the sliding groove (14) through the spring (322) to limit the hollow push rod (11).
3. The stable carton-packing machine pushing mechanism according to claim 2, characterized in that, The sliding groove (14) is a V-shaped groove.
4. The stable carton-packing machine pushing mechanism according to claim 1, characterized in that, The limiting plate (31) has a through groove (35) and a horizontal locking groove (36) below the limiting groove (34). The hollow push rod (11) passes through the through groove (35) and is horizontally limited in the horizontal locking groove (36) by the locking member.
5. The stable carton-packing machine pushing mechanism according to claim 4, characterized in that, It also includes a horizontal slide rail (16), and the push rod mechanism (1) also includes a push rod bracket (15). The hollow push rod (11) is fixed on the push rod bracket (15) by the limiting plate (31). The push rod bracket (15) is driven and connected to the push rod driver and is slidably arranged on the horizontal slide rail (16).
6. The stable carton-packing machine pushing mechanism according to claim 1, characterized in that, The hollow push block (12) has a fork plate (17) extending from the bottom of its front end. The ejector pin push block (23) matches the inner cavity of the hollow push block (12). The lower part of the ejector pin push block (23) extends to the fork plate (17).
7. The stable carton-packing machine pushing mechanism according to claim 6, characterized in that, The hollow pusher block (12) is provided with a limiting track (121) above and below and on the fork plate (17), and the pusher block (23) slides above and below in the limiting track (121).
8. The stable carton-packing machine pushing mechanism according to claim 1, characterized in that, It also includes a lower limit mechanism (4), which includes a lower limit driver (41), a lower limit bracket (42) and a lower limit block (43) that matches the opening of the hopper (5). The lower limit driver (41) is driven to connect with the lower limit bracket (42), and the lower limit block (43) is fixed on the lower limit bracket (42).