A buckle box device for a buckle box machine
By designing a lid closing mechanism, a latch insertion mechanism, and a bending auxiliary mechanism, the problems of inaccurate latch positioning and unstable bending were solved, achieving precise latch positioning and stable bending, improving the efficiency of latching and the product qualification rate, and supporting automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU SHENGHENG TECH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-10
Smart Images

Figure CN224477114U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging technology, and in particular to a box-locking device for a box-locking machine. Background Technology
[0002] In the field of packaging equipment, the box-locking operation has always been a critical step in the production process. Traditional box-locking devices often face numerous problems when handling boxes with locking tongue structures:
[0003] For example, inaccurate positioning of the latch during the lid closing process makes it difficult for the latch to be smoothly inserted into the opening, affecting the efficiency and stability of the latching operation. Moreover, due to the lack of an effective bending auxiliary structure, the latch is prone to deformation or breakage when bending, reducing the product qualification rate. At the same time, the blocking and fixing effect of the lid in traditional devices is not good, so the latch lacks reliable support during the insertion process, further affecting the accuracy and reliability of the latching operation.
[0004] These problems not only increase the cost of manual debugging in the production process, but also limit the improvement of production efficiency of automated production lines. Utility Model Content
[0005] The purpose of this invention is to provide a box-locking device for a box-locking machine to overcome the shortcomings of the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This application discloses a box-fastening device for a box-fastening machine, including a device base. The device base is provided with a lid closing mechanism, a locking tongue insertion mechanism, a locking tongue bending auxiliary mechanism, and a product box. The product box has an insertion opening, a lid, and a locking tongue. The product box is fastened by inserting the locking tongue on the lid into the insertion opening. The lid closing mechanism includes a bending rod movably connected to the device base. The bending arc of the bending rod is oriented diagonally upward away from the product box. When the product box is placed into the box-fastening device, the bending rod flips the lid upward. The locking tongue bending auxiliary mechanism includes a blocking rod movably connected to the device base. The blocking rod blocks the product box between its two ends and the lid, preventing the lid from closing. The locking tongue is also flipped by a telescopic rod.
[0008] Preferably, the lid closing mechanism further includes a telescopic rod II provided on the device base, and a push block provided on the telescopic rod II, which pushes the lid to close.
[0009] Preferably, the latch insertion mechanism includes an insertion protrusion connected to the telescopic end of a telescopic rod on the base of the device. The insertion protrusion is located at the connection between the box cover and the latch. When the telescopic rod extends, the interaction between the blocking rod and the insertion protrusion causes the latch to flip and face the insertion opening on the product box.
[0010] Preferably, the latch bending auxiliary mechanism further includes a telescopic rod three provided on the device base, the telescopic end of the telescopic rod three being connected to the blocking rod, and the blocking rod moving in and out between the product box and the box lid according to the telescopic extension and retraction of the telescopic rod three.
[0011] Preferably, the locking tongue insertion mechanism further includes a top support rod provided on the device base. The top support rod is located on the top of the product box. The top support rod is provided with a suction cup and an air pump. The suction cup and the air pump are connected by an air pipe. The suction cup is connected to the product box and the connection position is on one side of the insertion opening. The insertion opening is expanded by adsorbing the side wall of the product box.
[0012] The beneficial effects of this utility model are:
[0013] (1) Through the structural design of the locking tongue insertion mechanism, the automatic control of the locking tongue insertion process is realized, the positioning accuracy of the locking tongue insertion is improved, and the errors that may occur in manual operation are avoided. The top support rod is equipped with a suction cup and an air pump, which expands the insertion opening by adsorbing the side wall of the product box. This design provides more space for the insertion of the locking tongue, reduces the resistance when the locking tongue is inserted, further improves the success rate and efficiency of the locking tongue insertion, and reduces the product damage rate caused by the difficulty of locking tongue insertion.
[0014] (2) Through the structural design of the latch bending auxiliary mechanism, the blocking rod can move in and out between the product box and the lid according to the extension and retraction of the telescopic rod three, blocking the product box at both ends and the lid, effectively preventing the lid from closing. At the same time, the latch is driven to fold by the telescopic rod one. Under the support and restriction of the blocking rod, the latch can bend at a predetermined angle and direction, avoiding deformation or breakage during the bending process, and improving the quality and reliability of the latch bending. This structural design makes the latch bending process more stable and controllable, ensuring the consistency of the latching operation and the product qualification rate, and providing reliable technical support for automated latching production.
[0015] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a box-locking device for a box-locking machine according to the present invention;
[0017] Figure 2 This is a three-dimensional structural diagram of a partial structure of an embodiment of this utility model;
[0018] In the diagram: 1. Device base; 2. Product box; 201. Box lid; 202. Locking tongue; 3. Bending rod; 401. Telescopic rod one; 402. Telescopic rod two; 403. Telescopic rod three; 5. Insertion protrusion; 6. Blocking rod; 7. Top support rod; 701. Suction cup. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.
[0020] See Figure 1 , 2 This utility model embodiment provides a box-locking device for a box-locking machine, comprising a base 1, a box cover 201 closing mechanism, a locking tongue 202 insertion mechanism, a locking tongue 202 bending auxiliary mechanism, and a product box 2, wherein:
[0021] Product box 2 is provided with an insertion opening, a box cover 201 and a locking tongue 202. The box is fastened by inserting the box cover 201 and the locking tongue 202 into the insertion opening.
[0022] The lid 201 closing mechanism includes a bent rod 3 movably connected to the base, a telescopic rod 402 on the base, and a push block;
[0023] The bending rod 3 is movably connected to the device base 1 via a pin or slide rail. The bending arc is directed diagonally upward away from the product box 2. It is used to push the box cover 201 upward through physical contact when the product box 2 is placed into the device.
[0024] Telescopic rod 202 is fixedly installed on device base 1, and its telescopic end is connected to a push block; the push block is a block structure, used to push the box cover 201 to close inward after the locking tongue 202 is inserted.
[0025] The locking tongue 202 insertion mechanism includes a telescopic rod 401, an insertion protrusion 5, a top support rod 7, a suction cup 701, and an air pump; the telescopic rod 401 is fixed to the device base 1, and its telescopic end is connected to the insertion protrusion 5.
[0026] The insertion protrusion 5 is a block structure, which is set at the connection between the box cover 201 and the locking tongue 202. It is used to press against the connection between the locking tongue 202 and the box cover 201 when the telescopic rod 401 is extended, thereby causing the locking tongue 202 to flip.
[0027] The top support rod 7 is vertically fixed to the device base 1, located above the top of the product box 2, and its lower end is connected to the suction cup 701;
[0028] The suction cup 701 has its opening facing the side wall of the product box 2, and is connected to the air pump through an air tube. The air pump provides suction power to expand the insertion opening.
[0029] The bending auxiliary mechanism of the locking tongue 202 consists of telescopic rod 403 and blocking rod 6;
[0030] The telescopic rod 403 is fixed to the device base 1, and its telescopic end is horizontally connected to the blocking rod 6;
[0031] The blocking rod 6 is a rod-shaped structure with a length greater than the distance between the two ends of the product box 2. It is used to laterally block the product box 2 between the two ends and the box cover 201 when the telescopic rod 3 403 is extended, restricting the closing of the box cover 201, and providing a support point for the locking tongue 202 to bend.
[0032] Instructions for use:
[0033] This utility model discloses a box-locking device for a box-locking machine. Initially, the blocking rod 6 is in a retracted state and does not interfere with the placement of the product box 2.
[0034] When the product box 2 is placed into the fastening device, the movable bending rod 3 is triggered by the pushing of the product box 2. Its upward bending arc pushes the lid 201 to flip upward, so that the lid 201 and the main body of the product box 2 form an angle of 30-45°.
[0035] The telescopic rod 403 extends, causing the blocking rod 6 to move between the two ends of the product box 2 and the lid 201, forming a barrier. When the lid 201 closes, a travel space is formed between it and the product box 2. If an object is obstructed in this space, the lid cannot close. Therefore, through the structural design of the blocking rod 6, a barrier is formed in the travel space between the lid 201 and the product box 2, hindering the closing of the lid 201. The lid 201 cannot close normally and is blocked outside the product box 2 by the blocking rod 6, unable to close properly and unable to fasten the box. This prevents the lid 201 from closing by itself and provides stable support for the subsequent operation of the locking tongue 202.
[0036] Telescopic rod 401 extends, and its telescopic end inserts protrusion 5 abuts against the connection between the box cover 201 and the latch 202. At the same time, the blocking rod 6 keeps blocking the box cover 201. The angle design of the insert protrusion 5 matches the angle design of the bending rod 3, so that when the insert protrusion 5 is in action, it can cooperate with the angle of the box cover 201 caused by the bending rod 3 to bend the latch normally. The interaction between the insert protrusion 5 and the blocking rod 6 forces the latch 202 to flip towards the product box 2, facing the insertion opening, and then waits for telescopic rod 402 to perform the box closing operation.
[0037] The suction cup 701 on the top support rod 7 uses an air pump to draw air and adsorb the side wall of the product box 2 on the side of the insertion opening, expanding the insertion opening and providing enough space for the insertion of the locking tongue 202.
[0038] The telescopic rod 401 continues to push the insertion protrusion 5, which, in conjunction with the expanded insertion opening, accurately pushes the locking tongue 202 into the insertion opening, completing the key action of locking the box.
[0039] After the locking tongue 202 is inserted, the telescopic rod 401 retracts, and the insertion protrusion 5 is reset.
[0040] The telescopic rod 402 extends, and the push block pushes the box cover 201 to close inward, tightly fitting it with the main body of the product box 2, completing the entire box-closing operation.
[0041] Telescopic rod 3 (403) retracts, blocking rod 6 disengages from between product box 2 and box cover 201, and the device returns to its initial state, ready for the next box closing.
[0042] If double-end snapping is required, snapping machines can be installed at both ends of product box 2.
[0043] 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 or improvements 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 box-locking device for a box-locking machine, characterized in that: The device includes a base (1), on which a lid (201) closing mechanism, a latch insertion mechanism, a latch bending auxiliary mechanism, and a product box (2) are provided. The product box (2) is provided with an insertion opening, a lid (201), and a latch (202). The lid closing mechanism includes a bending rod (3) movably connected to the base (1). The bending arc of the bending rod (3) is oriented diagonally upward away from the product box (2). When the product box (2) is placed into the fastening device, the bending rod (3) flips the lid (201) upward. The latch bending auxiliary mechanism includes a blocking rod (6), which is movably connected to the base (1). It blocks the lid (201) between the two ends of the product box (2) and the lid (201), preventing the lid (201) from closing. The latch (202) is flipped by the telescopic rod (401).
2. The box-locking device for a box-locking machine as described in claim 1, characterized in that: The closing mechanism of the lid (201) also includes a telescopic rod (402) provided on the device base (1), and a push block is provided on the telescopic rod (402), which pushes the lid (201) to close.
3. The box-locking device for a box-locking machine as described in claim 1, characterized in that: The latch insertion mechanism includes an insertion protrusion (5) connected to the telescopic end of the telescopic rod (401) on the device base (1). The insertion protrusion (5) is located at the connection between the box cover (201) and the latch (202).
4. The box-locking device for a box-locking machine as described in claim 1, characterized in that: The locking tongue (202) bending auxiliary mechanism also includes a telescopic rod three (403) provided on the device base (1). The telescopic end of the telescopic rod three (403) is connected to the blocking rod (6). The blocking rod (6) moves in and out between the product box (2) and the box cover (201) according to the telescopic extension and retraction of the telescopic rod three (403).
5. The box-locking device for a box-locking machine as described in claim 1, characterized in that: The locking tongue (202) insertion mechanism also includes a top support rod (7) provided on the device base (1). The top support rod (7) is located on the top of the product box (2). The top support rod (7) is provided with a suction cup (701) and an air pump. The suction cup (701) and the air pump are connected by an air pipe. The suction cup (701) is connected to the product box (2) and the connection position is on one side of the insertion opening. The insertion opening is expanded by adsorbing the side wall of the product box (2).