Anti-ejection mechanism for cartoning machine and cartoning machine

Abstract

The present application provides an anti-ejection mechanism for a cartoning machine and a cartoning machine, which relate to the field of medicine bag packaging equipment. The anti-ejection mechanism for a cartoning machine includes a driver and an anti-ejection member, the anti-ejection member is installed on the driver, and the driver is used to drive the anti-ejection member to reciprocate relative to the packaging box body, so that the anti-ejection member has a first position and a second position that are switched with each other; when in the first position, the anti-ejection member abuts against the box tongue at the box opening position of the packaging box body, and the box tongue rotates in the direction of closing the box opening; when in the second position, the anti-ejection member leaves the box tongue, so that the box tongue opens the box opening. The anti-ejection mechanism for a cartoning machine cooperates with a pushing mechanism, which can prevent the medicine bag from sliding out of the box body after being pushed into the packaging box body, thereby improving production efficiency and safety.

Description

Technical Field

[0001] The utility model relates to the field of medicine bag packaging equipment, in particular to an anti-ejection mechanism for a cartoning machine and a cartoning machine. Background Art

[0002] The cartoning machine is used to convert drugs from bag packaging to box packaging in the production of drug packaging. The main operation process of the cartoning machine is as follows: after the packages enter the cartoning machine silo, they will flow to the subsequent process along the transport track. When entering the pushing area, the cartoning machine's push rod will push the packages into the packaging box. After the box is buckled, the operation process of the entire cartoning process ends.

[0003] The inventor has found that the cartoning machine in the prior art has at least the following disadvantages:

[0004] When the multi-layer bagged products reach the pushing area and are pushed into the packaging box by the push rod, since the surface of the bagged products, such as medicine bags, is relatively smooth, there is a certain probability that the multi-layer bagged products will slip out of the packaging box even after being pushed into the packaging box. This will not only affect the quality and production efficiency of the products, but the slipped-out products will also jam the equipment, causing dislocation of equipment components, and ultimately causing production interruption, seriously affecting production efficiency and product quality. Utility Model Content

[0005] The utility model aims to provide an anti-ejection mechanism for a cartoning machine and a cartoning machine, which can improve the problem that bagged products slip out of the packaging box and affect normal packaging.

[0006] The embodiment of the utility model is achieved as follows:

[0007] In the first aspect, the utility model provides an anti-ejection mechanism for a cartoning machine, which is used in conjunction with a pushing mechanism of the cartoning machine, wherein the pushing mechanism comprises a positioning component and a pushing component, wherein the positioning component is used to position a packaging box body, and the pushing component is used to push a medicine bag from a box opening of the packaging box body into the packaging box body, and the anti-ejection mechanism for a cartoning machine comprises:

[0008] A driver and an anti-recoil member, wherein the anti-recoil member is installed on the driver, and the driver is used to drive the anti-recoil member to reciprocate relative to the packaging box body so that the anti-recoil member has a first position and a second position that can be switched with each other; when in the first position, the anti-recoil member abuts against the box tongue at the box opening position of the packaging box body, and causes the box tongue to rotate in the direction of closing the box opening; when in the second position, the anti-recoil member leaves the box tongue, so that the box tongue opens the box opening.

[0009] In an optional embodiment, the driver is provided with a rotating member, which is connected to the anti-retraction member and is used to drive the anti-retraction member to swing back and forth relative to the packaging box body so that the anti-retraction member switches between the first position and the second position.

[0010] Based on the above scheme, the anti-return part is driven to rotate by the rotating part to realize the switching of the anti-return part between the first position and the second position. The operation is convenient and flexible, and the operation position is accurate, which is conducive to the cooperation between the anti-return part and the box tongue to limit the medicine bag from sliding out of the packaging box body. The box packaging production process of the medicine bag is smoother, more efficient and safer.

[0011] In an optional embodiment, the driver also includes a connecting lock plate, which is mounted on the rotating member, and a plurality of connecting parts with different positions are provided on the connecting lock plate. The anti-recoil member can be selectively connected to one of the plurality of connecting parts to adjust the swing amplitude of the anti-recoil member.

[0012] Based on the above solution, the rotating part of the driver is connected to the anti-retraction part by connecting the locking plate, which reduces the difficulty of assembly and makes assembly convenient and quick. In addition, according to the needs, the anti-retraction part can be connected to the connecting parts at different positions of the connecting locking plate, so as to adjust the swing amplitude of the anti-retraction part, which can adapt to different production scenarios.

[0013] In an optional embodiment, the connecting portion is configured as a stepped assembly hole.

[0014] Based on the above solution, the connecting part has a simple structure and is easy to use.

[0015] In an optional embodiment, one end of the anti-retraction member is inserted into the assembly hole, and a threaded hole is provided at the end of the anti-retraction member, and a fastening bolt is passed through the threaded hole.

[0016] Based on the above scheme, when installing the anti-return part and the connecting lock plate, the end of the anti-return part is inserted into the assembly hole from the end with the larger hole diameter, and the end of the anti-return part abuts against the annular surface in the assembly hole. Then, the fastening bolt is inserted from the anti-return part to the other side of the connecting lock plate and screwed into the threaded hole on the anti-return part. The connecting lock plate is clamped with the fastening bolt and the end of the anti-return part to achieve a fixed connection between the anti-return part and the connecting lock plate.

[0017] It should be understood that when the anti-retraction part is inserted into the assembly hole, the anti-retraction part and the assembly hole can be interference fit, and the two are not easy to rotate relative to each other, which makes it easy to drive the anti-retraction part to rotate synchronously by connecting the locking plate, thereby more accurately controlling the position of the anti-retraction part.

[0018] In an optional embodiment, the connecting lock plate is provided with a fixing hole and a locking hole connected to the fixing hole, and the axis of the fixing hole and the axis of the locking hole have an included angle; the rotating shaft of the rotating member is inserted into the fixing hole, and the rotating shaft and the connecting lock plate are relatively fixed in the circumferential direction of the rotating shaft; a locking screw is threaded in the locking hole, and the locking screw abuts against the circumferential surface of the rotating shaft.

[0019] Based on the above solution, the installation method of connecting the lock plate and the rotating member is simple and reliable.

[0020] In an optional embodiment, the end of the anti-retraction member is configured as an arc-shaped surface.

[0021] Based on the above solution, the end of the anti-retraction piece is set as an arc surface. When the end of the anti-retraction piece contacts the box tongue, it is not easy to scratch the box tongue, and the operation is safer and more reliable.

[0022] In an optional embodiment, the anti-retraction member includes a first rod and a second rod connected to each other, the extension direction of the first rod and the extension direction of the second rod have an angle, and the connection position of the first rod and the second rod forms an arc-shaped transition portion, and the arc-shaped transition portion is used to abut against the box tongue.

[0023] Based on the above solution, the arc-shaped transition part contacts the box tongue, which is not easy to scratch the box tongue, and the operation is safe and reliable. In addition, the arc-shaped transition part is in a bent position, the structural strength of this position is high, and it is not easy to deform when the box tongue is moved, which makes it easy to control the position of the box tongue through the anti-retraction member.

[0024] In an optional embodiment, a limiting member is provided on the driver, and the limiting member is used to abut against the anti-retraction member when the anti-retraction member is in the first position.

[0025] Based on the above scheme, when the driver drives the anti-return part to move toward the first position, when the anti-return part moves into place, it just abuts against the limiting part. The position of the anti-return part is not only actively adjusted by the driver, but also passively limited by the limiting part, thereby avoiding misoperation of the driver to cause excessive movement of the anti-return part, causing damage to the box tongue or affecting the normal operation of other parts of the cartoning machine, thereby improving the safety of operation.

[0026] In a second aspect, the utility model provides a cartoning machine, the cartoning machine comprising:

[0027] The anti-ejection mechanism for a cartoning machine according to any one of the aforementioned embodiments.

[0028] The beneficial effects of the embodiments of the utility model are:

[0029] To sum up, the anti-recoil mechanism for a cartoning machine provided in this embodiment can be used in conjunction with the pushing mechanism of the cartoning machine. In the initial state, the anti-recoil component is in the second position, the anti-recoil component does not contact the box tongue, and does not drive the box tongue to fold toward the position of the box opening that closes the packaging box body. At this time, the box opening is in a fully open state, and when the medicine bag is pushed into the packaging box body from the box opening, the medicine bag is not likely to interfere with the box tongue, and the medicine bag can smoothly pass through the box opening into the packaging box body. When the multi-layer medicine bags, for example, four-layer medicine bags, are pushed into the packaging box body, the driver starts, driving the anti-return component to move from the second position to the first position. At this time, the anti-return component can first contact the side of the box tongue away from the box opening, that is, the anti-return component contacts the outer side of the box tongue. As the anti-return component continues to approach the box tongue, it can push the box tongue to rotate from the outside to the inside, that is, the box tongue rotates toward the position of closing the box opening. After the box tongue rotates a certain angle, it blocks part of the box opening position. Even if the multi-layer medicine bags in the packaging box body slide toward the box opening under the action of gravity, they will be blocked by the box tongue. In this way, the medicine bags in the packaging box body are not easy to slide out from the box opening, which can effectively ensure production efficiency and product quality, reduce equipment operation failure rate, and reduce operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of an anti-ejection mechanism for a cartoning machine according to an embodiment of the utility model;

[0032] Figure 2 It is an exploded schematic diagram of the anti-ejection mechanism for a cartoning machine according to an embodiment of the utility model;

[0033] Figure 3 A schematic diagram of an anti-retraction member according to an embodiment of the utility model;

[0034] Figure 4 This is a schematic diagram of the application of the anti-ejection mechanism for a cartoning machine according to an embodiment of the utility model.

[0035] icon:

[0036] 001-packaging box body; 011-box tongue; 100-driver; 110-rotating shaft; 120-connecting lock plate; 121-connecting part; 122-fixing hole; 123-locking hole; 200-anti-retraction part; 210-first rod; 220-second rod; 230-arc transition part; 240-bending plate. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0041] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the prior art, after the medicine bag is pushed into the packaging box body 001, while the packaging box body 001 is being transported to the next process by the conveyor belt, the medicine bag in the packaging box body 001 is prone to slide out from the box opening of the packaging box body 001 due to its own gravity or other external forces, which not only affects the quality of the product and the production efficiency, but the slipped-out product may also jam the equipment, causing dislocation of equipment components, and ultimately causing production interruption, seriously affecting the production efficiency and product quality.

[0044] In view of this, the designer provides an anti-retraction mechanism for a cartoning machine, which can reduce the probability of the medicine bag slipping out of the packaging box body 001, improve the safety and reliability of the medicine bag packaging process, improve operating efficiency, and reduce operating costs.

[0045] It should be noted that the anti-ejection mechanism for the cartoning machine is used in conjunction with the pushing mechanism of the cartoning machine, wherein the pushing mechanism includes a positioning component and a pushing component, the positioning component is used to position the packaging box body 001, and the pushing component is used to push the medicine bag from the box opening of the packaging box body 001 into the packaging box body 001. The packaging box body 001 is positioned by the positioning component, and the position is firm and reliable. When the medicine bag is pushed into the packaging box body 001, the position of the packaging box body 001 is not easy to change. It should be understood that the detailed structure and working principle of the pushing component can refer to the existing structure. In order to avoid repeated description, no detailed description is given in this embodiment.

[0046] Please combine Figure 1-Figure 3 In this embodiment, the anti-retraction mechanism for the cartoning machine includes a driver 100 and an anti-retraction member 200. The anti-retraction member 200 is installed on the driver 100. The driver 100 is used to drive the anti-retraction member 200 to reciprocate relative to the packaging box body 001, so that the anti-retraction member 200 has a first position and a second position that can be switched with each other; when in the first position, the anti-retraction member 200 abuts against the box tongue 011 at the box opening position of the packaging box body 001, and causes the box tongue 011 to rotate in the direction of closing the box opening; when in the second position, the anti-retraction member 200 leaves the box tongue 011, so that the box tongue 011 opens the box opening.

[0047] Based on the above, the anti-ejection mechanism for the cartoning machine provided in this embodiment works as follows:

[0048] Please combine Figure 4 ,in, Figure 4FIG. 2 shows a position of the anti-return member 200 in the process of switching from the second position to the first position. At this time, the anti-return member 200 can continue to rotate clockwise to press the box tongue 011. The anti-return mechanism for the cartoning machine is used in conjunction with the pushing mechanism of the cartoning machine. In the initial state, the anti-return member 200 is in the second position, the anti-return member 200 does not contact the box tongue 011, and does not drive the box tongue 011 to fold toward the position of closing the box opening of the packaging box body 001. At this time, the box opening is in a fully open state. When the medicine bag is pushed from the box opening into the packaging box body 001, the medicine bag and the box tongue 011 are not easy to interfere with each other, and the medicine bag can smoothly pass through the box opening into the packaging box body 001. When the multi-layer medicine bags, for example, four-layer medicine bags, are pushed into the packaging box body 001, the driver 100 is started, driving the anti-return component 200 to move from the second position to the first position. At this time, the anti-return component 200 can first contact the side of the box tongue 011 away from the box opening, that is, the anti-return component 200 contacts the outer side of the box tongue 011. As the anti-return component 200 continues to approach the box tongue 011, it can push the box tongue 011 to rotate from the outside to the inside, that is, the box tongue 011 rotates toward the position of closing the box opening. After the box tongue 011 rotates a certain angle, part of the box opening position is blocked. Even if the multi-layer medicine bags in the packaging box body 001 slide toward the box opening under the action of gravity, they will be blocked by the box tongue 011. In this way, the medicine bags of the packaging box body 001 are not easy to slide out of the box opening, which can effectively ensure production efficiency and product quality, reduce equipment operation failure rate, and reduce operation costs.

[0049] The following embodiments illustrate the details of the anti-ejection mechanism for a cartoning machine provided by the present application by way of examples.

[0050] Please combine Figure 1 and Figure 2 In this embodiment, the driver 100 optionally includes a rotating member, which can be set as a motor. The rotating shaft 110 of the rotating member is connected to the anti-return member 200, and is used to drive the anti-return member 200 to swing back and forth relative to the packaging box body 001, so that the anti-return member 200 switches between the first position and the second position. The anti-return member 200 is driven to rotate by the rotating member to achieve the switching of the anti-return member 200 between the first position and the second position. The operation is convenient and flexible, and the operation position is accurate, which is conducive to the cooperation between the anti-return member 200 and the box tongue 011 to limit the medicine bag from sliding out of the packaging box body 001. The box production process of the medicine bag is smoother, more efficient, and safer.

[0051] It should be understood that the motor can be set as a servo motor, which is easy to control and can improve the accuracy of the position of the anti-retraction member 200.

[0052] In this embodiment, the driver 100 may optionally further include a connecting lock plate 120, which is mounted on the rotating member, and a plurality of connecting portions 121 at different positions are provided on the connecting lock plate 120, and the anti-recoil member 200 may be selectively connected to one of the plurality of connecting portions 121 to adjust the swing amplitude of the anti-recoil member 200. It should be understood that the number of connecting portions 121 may be two, three, or four, etc., which may be set as required, as long as the position of the anti-recoil member 200 can be adjusted.

[0053] It should be noted that the rotating part of the driver 100 is connected to the anti-retraction part 200 by connecting the lock plate 120, which reduces the difficulty of assembly and makes assembly convenient and quick. In addition, according to needs, the anti-retraction part 200 can be connected to the connecting part 121 at different positions of the connecting lock plate 120, so as to adjust the swing amplitude of the anti-retraction part 200, which can adapt to different production scenarios.

[0054] It should be understood that the connection lock plate 120 can be connected to the rotating shaft 110 of the rotating member through a spline, and the connection lock plate 120 and the rotating shaft 110 rotate synchronously.

[0055] Furthermore, the connection portion 121 is configured as a stepped assembly hole. The connection portion 121 has a simple structure and is easy to use.

[0056] It is worth noting that when the anti-retraction member 200 is installed with the connecting lock plate 120, one end of the anti-retraction member 200 can be inserted into the assembly hole, and a threaded hole is provided at the end of the anti-retraction member 200, and a fastening bolt is inserted into the threaded hole. For example, in one embodiment, the anti-retraction member 200 is a rod, and the first end of the anti-retraction member 200 is set as a bending section. After the anti-dropout member and the connecting lock plate 120 are installed, the rod section of the anti-dropout member 200 used to limit the box tongue 011 is roughly horizontally arranged, which can improve space utilization.

[0057] It should be understood that in other embodiments, the assembly hole can be a circular hole, and the apertures of the multiple circular holes can be set to be different, which can adapt to the insertion of anti-retraction parts 200 of different diameters into the assembly hole, and the two are interference fit or welded, or the assembly hole is directly set as a threaded hole, and the anti-retraction part 200 is screwed and fixed to the assembly hole, that is, the installation method of the anti-retraction part 200 and the connecting part 121 of the connecting lock plate 120 is various, and can be selected as needed, and the assembly is flexible and convenient. When the anti-retraction part 200 is inserted into the assembly hole of the connecting lock plate 120, the anti-retraction part 200 rotates synchronously with the connecting lock plate 120, that is, after the rotating part is started, it can drive the anti-retraction part 200 to swing back and forth within the set angle range through the connecting lock plate 120.

[0058] It should be understood that the anti-retraction component 200 is inserted into the assembly hole, and the anti-retraction component 200 and the assembly hole are in interference fit, and the two are not easy to rotate relative to each other, so it is convenient to drive the anti-retraction component 200 to rotate synchronously by connecting the lock plate 120, thereby more accurately controlling the position of the anti-retraction component 200.

[0059] In this embodiment, optionally, the connecting lock plate 120 is provided with a fixing hole 122 and a locking hole 123 connected to the fixing hole 122, and the axis of the fixing hole 122 and the axis of the locking hole 123 have an included angle. The rotating shaft 110 of the rotating member is inserted into the fixing hole 122, and the rotating shaft 110 and the connecting lock plate 120 are relatively fixed in the circumferential direction of the rotating shaft 110; a locking screw is threaded into the locking hole 123, and the locking screw abuts against the circumferential surface of the rotating shaft 110. The installation method of the connecting lock plate 120 and the rotating member is simple and reliable.

[0060] In this embodiment, a limiting member (not shown) is optionally provided on the driver 100, and the limiting member is used to abut against the anti-retraction member 200 when the anti-retraction member 200 is in the first position. For example, the limiting member is installed on the housing of the motor, and the limiting member can be a convex column or a convex block. When the rotating shaft 110 of the rotating member drives the anti-retraction member 200 to move toward the first position, when the anti-retraction member 200 moves into place, it just abuts against the limiting member. The position of the anti-retraction member 200 is not only actively adjusted by the driver 100, but also passively limited by the limiting member, thereby avoiding the misoperation of the driver 100 to cause the anti-retraction member 200 to move excessively, causing damage to the box tongue 011 or affecting the normal operation of other parts of the cartoning machine, thereby improving the safety of the operation.

[0061] In one embodiment, the anti-retraction member 200 is optionally configured as a rod, and the end of the anti-retraction member 200 away from the connection lock plate 120 is configured as an arc surface. When the end of the anti-retraction member 200 is configured as an arc surface, when the end of the anti-retraction member 200 contacts the box tongue 011, it is not easy to scratch the box tongue 011, and the operation is safer and more reliable.

[0062] Please combine Figure 3In another embodiment, the anti-retraction member 200 optionally includes a first rod 210, a second rod 220 and a third rod connected in sequence, the extension direction of the first rod 210 and the extension direction of the second rod 220 have an angle, the extension direction of the second rod 220 and the extension direction of the third rod have an angle, for example, the extension direction of the first rod 210 and the second rod 220 can be 90°, the extension direction of the second rod 220 and the third rod can be 90°, that is, the first rod 210, the second rod 220 and the third rod are perpendicular to each other. The connection position of the first rod 210 and the second rod 220 forms an arc transition portion 230, and the arc transition portion 230 is used to abut against the box tongue 011. The arc transition portion 230 contacts the box tongue 011, is not easy to scratch the box tongue 011, and works safely and reliably. Furthermore, the arc-shaped transition portion 230 is at a bent position, where the structural strength is high and the box tongue 011 is not easily deformed when being moved, so that the position of the box tongue 011 can be easily controlled by the anti-retraction member 200. The third rod is inserted into the assembly hole.

[0063] Alternatively, in other embodiments, the anti-retraction member 200 is configured as a rod, and a bending plate 240 is installed on the anti-retraction member 200. The bending plate 240 is used to abut against the box tongue 011 to adjust the position of the box tongue 011. The contact area between the bending plate 240 and the box tongue 011 is large, and it is not easy for the box tongue 011 to be folded.

[0064] In this embodiment, the anti-ejection mechanism of the cartoning machine is designed to push the box tongue 011 to close a portion of the box opening of the packaging box body 001 through the anti-ejection member 200 when the medicine bag is pushed into the packaging box body 001, thereby restricting the medicine bag through the box tongue 011 and reducing the risk of the medicine bag slipping out of the packaging box body 001.

[0065] This embodiment further provides a cartoning machine, which includes an anti-ejection mechanism and a material pushing mechanism for the cartoning machine, and at least has the advantage that the medicine bag is not easy to slide out during the process of being loaded into the packaging box body 001.

[0066] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An anti-ejection mechanism for a cartoning machine, used in conjunction with a pushing mechanism of the cartoning machine, the pushing mechanism comprising a positioning component and a pushing component, the positioning component being used to position a packaging box body (001), the pushing component being used to push a medicine bag from a box opening of the packaging box body (001) into the packaging box body (001), characterized in that: The anti-ejection mechanism for the cartoning machine comprises: A driver (100) and an anti-recoil member (200), wherein the anti-recoil member (200) is installed on the driver (100), and the driver (100) is used to drive the anti-recoil member (200) to reciprocate relative to the packaging box body (001), so that the anti-recoil member (200) has a first position and a second position that can be switched with each other; when in the first position, the anti-recoil member (200) abuts against a box tongue (011) at the box opening position of the packaging box body (001), and causes the box tongue (011) to rotate in a direction to close the box opening; when in the second position, the anti-recoil member (200) leaves the box tongue (011), so that the box tongue (011) opens the box opening.

2. The anti-ejection mechanism for a cartoning machine according to claim 1, characterized in that: The driver (100) is provided with a rotating member, which is connected to the anti-retraction member (200) and is used to drive the anti-retraction member (200) to swing back and forth relative to the packaging box body (001) so that the anti-retraction member (200) switches between the first position and the second position.

3. The anti-ejection mechanism for a cartoning machine according to claim 2, characterized in that: The driver (100) further comprises a connecting lock plate (120), wherein the connecting lock plate (120) is mounted on the rotating member, and a plurality of connecting parts (121) at different positions are arranged on the connecting lock plate (120), and the anti-recoil member (200) can be selectively connected to one of the plurality of connecting parts (121) to adjust the swing amplitude of the anti-recoil member (200).

4. The anti-ejection mechanism for a cartoning machine according to claim 3, characterized in that: The connecting portion (121) is configured as a stepped assembly hole.

5. The anti-ejection mechanism for a cartoning machine according to claim 4, characterized in that: One end of the anti-retraction member (200) is inserted into the assembly hole, and a threaded hole is provided at the end of the anti-retraction member (200), and a fastening bolt is passed through the threaded hole.

6. The anti-ejection mechanism for a cartoning machine according to claim 3, characterized in that: The connecting lock plate (120) is provided with a fixing hole (122) and a locking hole (123) connected to the fixing hole (122), and the axis of the fixing hole (122) and the axis of the locking hole (123) have an included angle; the rotating shaft (110) of the rotating member is inserted into the fixing hole (122), and the rotating shaft (110) and the connecting lock plate (120) are relatively fixed in the circumferential direction of the rotating shaft (110); a locking screw is threaded into the locking hole (123), and the locking screw abuts against the circumferential surface of the rotating shaft (110).

7. The anti-ejection mechanism for a cartoning machine according to claim 1, characterized in that: The end of the anti-retraction member (200) is arranged as an arc-shaped surface.

8. The anti-ejection mechanism for a cartoning machine according to claim 1, characterized in that: The anti-retraction member (200) comprises a first rod (210) and a second rod (220) which are connected to each other. The extension direction of the first rod (210) and the extension direction of the second rod (220) form an included angle. The connection position of the first rod (210) and the second rod (220) forms an arc-shaped transition portion (230). The arc-shaped transition portion (230) is used to abut against the box tongue (011).

9. The anti-ejection mechanism for a cartoning machine according to claim 1, characterized in that: A limit member is provided on the driver (100), and the limit member is used to abut against the anti-retraction member (200) when the anti-retraction member (200) is in the first position.

10. A cartoning machine, characterized in that: The cartoning machine comprises: The anti-ejection mechanism for a cartoning machine according to any one of claims 1 to 9.

Images