Intercepting mechanism for lack-of-material alarm of cartoning machine

Abstract

This utility model relates to the field of packaging machine technology, specifically to an interception mechanism for a material shortage alarm in a cartoning machine. It includes a worktable and a photoelectric sensor installed at the center of the bottom of the worktable. L-shaped support seats, symmetrically distributed about the photoelectric sensor axis, are vertically fixed to the bottom of the worktable. The interception assembly includes interception frames rotatably mounted on the same side of the two L-shaped support seats. The support assembly includes shaft cylinders vertically fixed to the bottom of the two interception frames. A shaft rod is detachably inserted into the bottom of each shaft cylinder, and the depth of the shaft rod inserted into the corresponding shaft cylinder is adjustable. Universal wheels are elastically installed on the bottom of each shaft rod. The L-shaped support seats and shaft cylinders provide double support for the interception frames, preventing swaying during rotation. The shaft rods and shaft cylinders are fixed by insertion holes and bolts, allowing for flexible adjustment of the distance between the universal wheels and the interception assembly to adapt to the installation height requirements of different cartoning machines.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, specifically to an interception mechanism for a material shortage alarm in a cartoning machine. Background Technology

[0002] In automated packaging production lines, cartoning machines are widely used in industries such as pharmaceuticals, food, and cosmetics to pack products into boxes. However, in actual production, material shortages often occur due to malfunctions in the feeding system or poor material conveying, resulting in empty or partially filled boxes entering subsequent packaging processes. This not only affects the product qualification rate but may also cause blockages in downstream equipment or packaging errors, increasing manual sorting costs.

[0003] In existing technologies, common material shortage interception devices mainly rely on photoelectric sensors to detect the material status and use mechanical baffles to intercept empty boxes. However, such devices have the following problems:

[0004] Insufficient interception stability: The baffle is prone to vibration when moving at high speed, which can cause the interception position to deviate and affect the interception accuracy;

[0005] Poor adaptability: Traditional interception mechanisms have a fixed height, making it difficult to adapt to the installation space of different models of cartoning machines;

[0006] Weak buffering performance: The impact force during interception is large, which can easily damage the baffle or box and reduce the life of the equipment.

[0007] Therefore, there is an urgent need for a material shortage alarm and interception mechanism with high stability, adjustable height, and excellent buffering performance. Utility Model Content

[0008] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an interception mechanism for material shortage alarm of cartoning machine, which can effectively solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] This utility model provides an interception mechanism for a short-material alarm in a cartoning machine, including a worktable and a photoelectric sensor installed at the center of the bottom of the worktable. The bottom of the worktable is vertically fixed with L-shaped support seats symmetrically distributed about the photoelectric sensor axis. The interception assembly includes interception frames rotatably installed on the same side of the two L-shaped support seats. The support assembly includes shaft cylinders vertically fixed at the bottom of the two interception frames. The bottom of each of the two shaft cylinders is detachably inserted with a shaft rod. The depth of the shaft rod inserted into the corresponding shaft cylinder is adjustable. The bottom of each of the two shaft rods is elastically mounted with casters.

[0011] Furthermore, both L-shaped support seats are threaded with screws.

[0012] Furthermore, the interception component also includes four mounting bases, which are vertically fixed to the side walls of the corresponding L-shaped support bases in a symmetrical arrangement.

[0013] Furthermore, servo motors are vertically fixedly installed on the top of the two L-shaped support seats located above, and rotating rods are rotatably installed between the two mounting seats. Couplings are installed between the two rotating rods and the corresponding output ends of the servo motors, and the two rotating rods are vertically fixedly installed with the corresponding interceptor frames.

[0014] Furthermore, each of the two shaft cylinders has an insertion cavity at its bottom, and each of the two opposite outer walls of the two shaft cylinders has a first insertion hole through the insertion cavity. Each of the two shaft rods has several second insertion holes through it. When the second insertion hole coincides with the corresponding first insertion hole, bolts can be detachably installed between the two shaft cylinders and the corresponding shaft rods. The two bolts pass through the corresponding two first insertion holes and two second insertion holes respectively.

[0015] Furthermore, a base is provided directly below each of the two shafts, and a spring is installed between each of the two shafts and the corresponding base. Each of the two springs contains a buffer rod and a buffer cylinder that are interlocked with each other. The tops of the two buffer rods are vertically fixedly installed on the bottom of the corresponding shaft, and the bottoms of the two buffer cylinders are fixedly installed on the corresponding base. The two casters are rotatably installed between the casters and the corresponding base.

[0016] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0017] 1. The L-shaped support base and the shaft cylinder form a double support for the interceptor frame to prevent swaying during rotation drive. The servo motor and the coupling work together to ensure the rotation accuracy of the interceptor frame and avoid positional deviation.

[0018] 2. The shaft and shaft cylinder are fixed by insertion holes and bolts, and the distance between the caster wheels and the interception components can be flexibly adjusted to adapt to the installation height requirements of different cartoning machines;

[0019] 3. The combination of springs and buffer bars effectively absorbs the impact force at the moment of interception, reducing damage to the box and mechanism; the casters provide convenient movement when not intercepting, facilitating equipment maintenance or position adjustment. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the support component of this utility model;

[0023] Figure 3 This is a schematic diagram of the disassembled support component of this utility model;

[0024] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0025] The labels in the diagram represent:

[0026] 1. Workbench; 11. Photoelectric sensor; 12. L-shaped support; 13. Screws;

[0027] 21. Mounting base; 22. Servo motor; 23. Rotating rod; 24. Interceptor frame;

[0028] 31. Shaft cylinder; 32. Shaft rod; 33. Bolt; 34. Buffer rod; 35. Buffer cylinder; 36. Spring; 37. Caster wheel. Detailed Implementation

[0029] 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, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The present invention will be further described below with reference to the embodiments.

[0031] Example 1:

[0032] Reference Figure 1-4This is the first embodiment of the present invention, which discloses an interception mechanism for a material shortage alarm of a cartoning machine. It includes a workbench 1 and a photoelectric sensor 11 installed at the center of the bottom of the workbench 1. The photoelectric sensor 11 is electrically connected to an external PLC controller. The photoelectric sensor 11 mainly consists of a light source (emitter), a light receiver (detector), and a signal processing circuit. The emitter emits a light beam, which is reflected by a reflector and received by the receiver. When an object blocks the light path, the reflected light is blocked, the receiver signal changes, the circuit determines that the object exists, and outputs a signal. For example, when the material is passing normally, the light beam should be blocked, and when there is a material shortage, the light beam is not blocked.

[0033] The bottom of the workbench 1 is vertically fixed with L-shaped support bases 12 that are symmetrically distributed about the photoelectric sensor 11. The interception assembly includes interception frames 24 that are rotatably installed on the same side of the two L-shaped support bases 12. The support assembly includes shaft cylinders 31 that are vertically fixed to the bottom of the two interception frames 24. The bottom of the two shaft cylinders 31 can be detachably inserted with shaft rods 32. The depth of the shaft rods 32 inserted into the corresponding shaft cylinders 31 is adjustable. The bottom of the two shaft rods 32 is elastically installed with casters 37.

[0034] Example 2:

[0035] Reference Figure 1-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: screws 13 are threaded through and installed on both L-shaped support seats 12. The interception assembly also includes four mounting seats 21. The four mounting seats 21 are symmetrically distributed in pairs and vertically fixedly installed on the side walls of the corresponding L-shaped support seats 12. Servo motors 22 are vertically fixedly installed on the tops of the two upper L-shaped support seats 12. Rotating rods 23 are rotatably installed between the two mounting seats 21. Couplings are installed between the two rotating rods 23 and the output ends of the corresponding servo motors 22. The two rotating rods 23 are vertically fixedly installed on the corresponding interception frames 24.

[0036] Both shaft cylinders 31 have insertion cavities at their bottom. The two opposite outer walls of each shaft cylinder 31 have first insertion holes penetrating through these cavities. Both shaft rods 32 have several second insertion holes penetrating through them. When the second insertion holes coincide with the corresponding first insertion holes, bolts 33 can be detachably installed between each shaft cylinder 31 and each corresponding shaft rod 32. Two bolts 33 pass through the corresponding first and second insertion holes respectively, allowing adjustment of the insertion depth between the shaft rod 32 and the shaft cylinder 31. A base is located directly below each shaft rod 32. A spring 36 is installed between each shaft rod 32 and its corresponding base. Each spring 36 contains interlocking buffer rods 34 and buffer cylinders 35. The tops of the two buffer rods 34 are vertically fixed to the bottom of their respective shaft rods 32. The bottoms of the two buffer cylinders 35 are fixedly installed to their respective bases. Two casters 37 are rotatably installed between their respective bases.

[0037] The remaining structure is the same as that in Example 1.

[0038] Working process of the interception mechanism of the low material alarm on the cartoning machine

[0039] 1. Initial state (standby mode)

[0040] Photoelectric sensor monitoring:

[0041] The photoelectric sensor 11 continuously monitors the material status on the cartoning machine conveyor belt. When the material passes through normally, the sensor maintains a clear signal, and the interceptor 24 is in the retracted state (parallel to the conveyor belt), allowing the packaging box to pass through smoothly.

[0042] Support component stability:

[0043] When the caster wheel 37 is in contact with the ground, the spring 36 is in a naturally extended state, and the buffer rod 34 and the buffer cylinder 35 are not compressed, ensuring the overall stability of the mechanism.

[0044] 2. Material shortage detection and alarm triggering

[0045] Material shortage determination:

[0046] If the photoelectric sensor 11 does not detect material within a set time (e.g., two consecutive workstations are empty), it is determined to be in a material shortage state and immediately sends an alarm signal to the control system.

[0047] Audible and visual alarm:

[0048] The control system triggers an audible and visual alarm (not shown, installed inside workbench 1) to prompt the operator to check the feeding system and simultaneously activate the interception program.

[0049] 3. Execution of interception actions

[0050] Servo motor 22 drive:

[0051] The control system sends a command to the servo motor 22, which drives the rotating rod 23 to rotate 90° through the coupling, so that the interceptor 24 switches from the horizontal position (standby) to the vertical position (interception).

[0052] Dual support for stability:

[0053] L-shaped support 12: provides rigid support to prevent the interceptor frame 24 from swaying;

[0054] Shaft cylinder 31 and shaft 32: The height is fixed by bolts 33 to ensure that the interceptor frame 24 does not sink or shift during operation;

[0055] Buffering and energy absorption:

[0056] The moment the interceptor 24 contacts the empty box, the impact force is transmitted to the shaft 32, the spring 36 is compressed, and the buffer rod 34 slides along the buffer cylinder 35 to absorb the impact energy and prevent damage to the mechanism or the packaging box.

[0057] 4. Interception completed and reset

[0058] Interception maintained:

[0059] The interceptor 24 remains vertical, preventing subsequent empty boxes from entering the downstream process, until the operator finishes handling it and manually resets it.

[0060] Automatic reset:

[0061] After the operator confirms that the material supply has been restored, a reset command is sent through the control panel. The servo motor 22 rotates 90° in the opposite direction, driving the interceptor frame 24 back to the horizontal standby position.

[0062] Spring 36 rebound:

[0063] Spring 36 returns to its natural length, buffer rod 34 returns to its original position, caster wheel 37 re-contacts the ground, and the mechanism returns to its initial state.

[0064] 5. Height adjustment (for different models)

[0065] Adjustment steps:

[0066] Loosen the bolt 33 on the shaft sleeve 31;

[0067] Pull the shaft 32 to adjust the insertion depth so that the distance between the caster wheel 37 and the interceptor 24 matches the height of the cartoning machine. Align the second insertion hole of the shaft 32 with the first insertion hole of the shaft cylinder 31, and insert the bolt 33 to lock it in place.

[0068] By adjusting the length of shaft 32, it can be adapted to the installation space of different models of cartoning machines, ensuring the precise relative position of interceptor 24 and conveyor belt.

[0069] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An interception mechanism for a material shortage alarm on a cartoning machine, characterized in that, The system includes a worktable (1) and a photoelectric sensor (11) installed at the center of the bottom of the worktable (1). The bottom of the worktable (1) is vertically fixed with an L-shaped support base (12) symmetrically distributed about the axis of the photoelectric sensor (11). The system also includes: The interception assembly includes an interception frame (24) that is rotatably mounted on one side of two L-shaped support bases (12) in the same direction; The support assembly includes shaft cylinders (31) that are vertically fixed to the bottom of two interceptor frames (24), and shaft rods (32) are detachably inserted into the bottom of each of the two shaft cylinders (31). The depth of the shaft rods (32) inserted into the corresponding shaft cylinders (31) is adjustable, and casters (37) are elastically installed on the bottom of each of the two shaft rods (32).

2. The interception mechanism for the material shortage alarm of the cartoning machine according to claim 1, characterized in that, Both L-shaped support bases (12) are threaded with screws (13).

3. The interception mechanism for the material shortage alarm of the cartoning machine according to claim 1, characterized in that, The interception assembly also includes four mounting bases (21), which are vertically fixed to the side wall of the corresponding L-shaped support base (12) in a symmetrical arrangement.

4. The interception mechanism for the material shortage alarm of the cartoning machine according to claim 3, characterized in that, Two L-shaped support bases (12) located above each have a servo motor (22) vertically fixedly mounted on their tops. A rotating rod (23) is rotatably mounted between the two mounting bases (21). A coupling is installed between each of the two rotating rods (23) and the output end of the corresponding servo motor (22). The two rotating rods (23) are vertically fixedly mounted to the corresponding interceptor frame (24).

5. The interception mechanism for the material shortage alarm of the cartoning machine according to claim 4, characterized in that, Both of the two shaft cylinders (31) have insertion cavities at their bottom. The two opposite outer walls of the two shaft cylinders (31) have first insertion holes through the insertion cavities. Both of the two shaft rods (32) have several second insertion holes through them. When the second insertion hole coincides with the corresponding first insertion hole, bolts (33) can be detachably installed between the two shaft cylinders (31) and the corresponding shaft rods (32). The two bolts (33) pass through the corresponding two first insertion holes and two second insertion holes respectively.

6. The interception mechanism for the material shortage alarm of the cartoning machine according to claim 5, characterized in that, A base is provided directly below each of the two shafts (32). A spring (36) is installed between each of the two shafts (32) and the corresponding base. A buffer rod (34) and a buffer cylinder (35) are installed inside each of the two springs (36). The top of the two buffer rods (34) is vertically fixedly installed on the bottom of the corresponding shaft (32). The bottom of the two buffer cylinders (35) is fixedly installed with the corresponding base. The two casters (37) are rotatably installed with the corresponding base.

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