Box turnover machine and cut tobacco making system

Abstract

The utility model provides a box turnover machine and a cut tobacco making system. The box turnover machine is used for fixedly holding and turning over a box body and comprises a clamping mechanism, the clamping mechanism comprises two clamping parts arranged at an interval, the interval between the two clamping parts accommodates the box body, and each clamping part comprises a first clamping rod, a second clamping rod and a third clamping rod; the first driving device is in driving connection with the first clamping rod, so that the first clamping rod moves to be close to or away from the box wall, close to one side of the clamping part, of the box body; the second clamping rod and the first clamping rod are arranged in a spaced mode, the interval between the first clamping rod and the second clamping rod accommodates a protruding strip arranged on the box wall of the side, facing the clamping part, of the box body, and the distance of the interval is larger than the height of the protruding strip; and the second driving device is in driving connection with the second clamping rod, so that the second clamping rod moves to be close to or far away from the box wall, close to one side of the clamping part, of the box body. The cut tobacco making system comprises the box turnover machine, and the box turnover machine comprises a supporting base used for containing a box body. And the auxiliary conveying device is used for conveying the box body onto the supporting seat.

Description

Technical Field

[0001] The present invention relates to tobacco machinery, and in particular to a box turning machine and a tobacco making system. Background Art

[0002] At present, cigarette box turning machines are widely used in cigarette industry production lines. The function of cigarette box turning machines is to pick up and turn over cigarette boxes, and dump the tobacco stored inside into the silo. The tobacco in the silo can be transported to the production line by auxiliary equipment to complete the cross-regional flow of tobacco.

[0003] In the related art, the clamping mechanism retracts the clamping jaws inwards, so that the convex strips arranged in the middle of the cigarette box are embedded between the upper and lower clamping strips of the clamping jaws, thereby clamping the cigarette box. In actual production and application, the gap between the upper and lower clamping strips is equal to the thickness of the convex strips of the cigarette box. Figure 1 and Figure 2 As shown, due to the process deviation of the convex strip 101' of the cigarette box 10' during processing, or due to the convex strip 101' of the cigarette box 10' being easily damaged and deformed during long-term use, it is difficult for the convex strip 101' to enter the gap between the upper and lower clamping strips 11' of the clamping mechanism when the clamping mechanism contracts inwards, resulting in clamping failure, resulting in production interruption and reduced production efficiency. In addition, as Figure 3 As shown, in actual production application, the clamping mechanism needs to return to the initial position after turning over the box and wait for the next cigarette box 10' to perform the clamping operation again. In industry, the clamping mechanism is generally controlled to reach the initial position by a proximity switch. If the surface of the proximity switch is disturbed by smoke or the mounting frame is loose, the clamping mechanism is prone to position deviation relative to the initial position, so that the convex strip 101' cannot be aligned with the gap between the upper and lower clamping strips 11' of the clamping mechanism, which will also cause clamping failure and cause production interruption. Utility Model Content

[0004] The purpose of the present disclosure is to provide a box turning machine and a wire making system, aiming to solve the problem that the clamping mechanism of the box turning machine cannot stably clamp the box body, resulting in production interruption and thus reducing production efficiency.

[0005] According to a first aspect of the present disclosure, there is provided a box turning machine for holding and turning a box, the box turning machine comprising a clamping mechanism, the clamping mechanism comprising two clamping parts arranged at an interval, the interval between the two clamping parts being configured to accommodate the box, each of the clamping parts comprising: a first clamping rod; a first driving device, drivingly connected to the first clamping rod, and configured to move the first clamping rod to approach or move away from a box wall of the box on a side close to the clamping part; a second clamping rod, arranged at an interval from the first clamping rod, the interval between the first clamping rod and the second clamping rod being configured to accommodate a convex strip arranged on a box wall of the box on a side facing the clamping part, and the distance of the interval between the first clamping rod and the second clamping rod being greater than the height of the convex strip; and a second driving device, drivingly connected to the second clamping rod, and configured to move the second clamping rod to approach or move away from the box wall of the box on a side close to the clamping part.

[0006] In some embodiments of the box turning machine, the clamping mechanism is configured so that before clamping the box body, the first clamping rod is in a position having an initial interval with the convex strip along the height direction of the convex strip, and the first clamping rod and the second clamping rod are respectively located on both sides of the height direction of the convex strip, and the box turning machine also includes: two first supports, which are arranged in a one-to-one correspondence with the two clamping parts, and the first support is connected to one end of the same side of the first clamping rod and the second clamping rod of the corresponding clamping part; a first detection device, which is configured to detect whether the first clamping rod is in contact with the box wall; and a third driving device, which is drivingly connected to the first support and signal-connected to the first detection device, and is configured to drive the first support to move when the first detection device detects that the first drive device drives the first clamping rod to approach the box body until it is in contact with the box wall with the initial interval with the convex strip, so as to make the first clamping rod approach the convex strip until it is in contact with the convex strip.

[0007] In some embodiments of the box turning machine, the box turning machine also includes a second detection device, which is configured to detect whether the first clamping rod is in contact with the convex strip; the second driving device is signal-connected to the second detection device, and is configured to drive the second clamping rod to move so that the second clamping rod is close to the box body until the second clamping rod is in contact with the box wall when the second detection device detects that the first clamping rod is in contact with the convex strip.

[0008] In some embodiments of the box turning machine, the box turning machine also includes: a support seat, configured to place the box body; a first switch, configured to close when the box body is located in a waiting position to be clamped on the support seat to wait for the clamping mechanism to clamp it; and a third detection device, connected to the first switch signal, configured to detect whether the first clamping rod and the convex strip have the initial interval when the first switch is closed; the third driving device is connected to the third detection device signal, and is configured to: before the first driving device drives the first clamping rod to approach the box body, when the third detection device detects that the interval between the first clamping rod and the convex strip along the height direction of the convex strip deviates from the initial interval, drive the first support to move until the third detection device detects that the first clamping rod and the convex strip have the initial interval.

[0009] In some embodiments of the box turner, the first support includes: a support body; a first connection end, which is arranged on the support body and is drivingly connected to the first clamping rod; and a second connection end, which is arranged on the support body and is drivingly connected to the second clamping rod and is spaced apart from the first connection end;

[0010] Wherein, the first connecting end is configured to be movable relative to the support body to drive the first clamping rod to approach or move away from the second clamping rod, and / or the second connecting end is configured to be movable relative to the support body to drive the second clamping rod to approach or move away from the first clamping rod.

[0011] In some embodiments of the box turning machine, the first driving device of each of the clamping parts includes: a first fixed frame, located on the side of the first clamping rod away from the other clamping part; two first rocking arms, respectively hinged at the two ends of the first fixed frame and the first clamping rod, the first fixed frame, the two first rocking arms and the first clamping rod forming a first four-bar linkage; and a first driving cylinder, drivingly connected to the first four-bar linkage, and configured to change the angle between the first rocking arm and the first clamping rod to drive the first clamping rod closer to or away from the box body.

[0012] In some embodiments of the box turning machine, the second driving device of each clamping part includes: a second fixed frame, configured to be located on a side of the second clamping rod away from the other clamping part; two second rocking arms, respectively hinged at the second fixed frame and the two ends of the second clamping rod, the second fixed frame, the two second rocking arms and the second clamping rod forming a second four-bar linkage; and a second driving cylinder, drivingly connected to the second four-bar linkage, configured to change the angle between the second rocking arm and the second clamping rod to drive the second clamping rod to approach or move away from the box body.

[0013] In some embodiments of the box turner, the first clamping rod and / or the second clamping rod are configured so that when clamping the box body, the cross-sectional area perpendicular to the height direction of the convex strip is larger than the cross-sectional area of ​​the convex strip perpendicular to its own height direction.

[0014] In some embodiments of the box turner, the length of the first clamping rod and / or the second clamping rod is configured to be greater than the length of the convex strip.

[0015] The second aspect of the present disclosure provides a silk making system, comprising: the box turning machine described in the first aspect of the present disclosure, the box turning machine comprising a support base, the support base is configured to place the box body; and an auxiliary conveying device, configured to transport the box body to the support base.

[0016] Based on the box turning machine provided by the present disclosure, a clamping mechanism is provided, which includes two clamping parts arranged at intervals, and the interval between the first clamping rod and the second clamping rod of the clamping part is greater than the height of the convex strip provided on the box to be clamped, and a first driving device is provided to be drivingly connected to the first clamping rod, and a second driving device is provided to be drivingly connected to the second clamping rod. This arrangement is conducive to preventing the convex strip from exceeding the interval between the first clamping rod and the second clamping rod due to deformation and other factors, thereby preventing the first clamping rod and the second clamping rod from moving close to the box wall on the side of the box close to the clamping part, thereby preventing the clamping mechanism from being unable to stably clamp the box, resulting in production interruption and reduced production efficiency.

[0017] The silk making system disclosed in the present invention comprises the box turner disclosed in the present invention, thereby having the advantages of the box turner disclosed in the present invention.

[0018] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0020] Figure 1 It is a schematic diagram of a part of the structure of a box turning machine in the prior art, which shows that there is a process deviation in the convex strips of the box body;

[0021] Figure 2 It is a schematic diagram of a part of the structure of a box turning machine in the prior art, which shows that the convex strips of the box body are damaged and deformed;

[0022] Figure 3It is a structural schematic diagram of a part of the structure of a carton turner in the prior art, which shows that there is a position deviation between the upper and lower clamping bars of the clamping mechanism of the carton turner;

[0023] Figure 4 It is a schematic side view of a partial structure of a silk making system according to an embodiment of the present disclosure, which shows a box turning machine according to an embodiment of the present disclosure and a box body located at a position to be clamped;

[0024] Figure 5 for Figure 4 A schematic side view of a partial structure of the silk making system shown, which shows the clamping portion of the box turning machine and the convex strips of the box body;

[0025] Figure 6 for Figure 4 The bottom view of the structure of the partial structure of the silk making system shown in the figure shows the first clamping rod and the first driving device of a clamping part when the box turning machine clamps the box body lying flat;

[0026] Figure 7 for Figure 4 The schematic diagram of the top view of the partial structure of the silk making system shown, which shows the second clamping rods and the second driving device of the two clamping parts arranged at intervals when the box turning machine clamps the flat box body;

[0027] Figure 8 for Figure 4 A schematic side view of a portion of the structure of the silk making system is shown, which shows the clamping mechanism clamping and lifting the box;

[0028] Fig. 9 for Figure 4 The side view schematic diagram of the partial structure of the silk making system shown, which shows the clamping mechanism clamping and flipping the box.

[0029] Figure 1-9 In the figure, each reference numeral represents:

[0030] 10', smoke box, 101', convex strip, 11', upper and lower clamping strips;

[0031] 10. Box body, 101. Raised strip, A. first direction, B. second direction, C. third direction;

[0032] 20. support base, 201. pillar, 202. storage table, 203. side wall;

[0033] 11. first clamping rod, 121. first fixing frame, 122. first rocker arm, 123. first articulated frame, 13. first driving cylinder;

[0034] 21. second clamping rod, 221. second fixing frame, 222. second rocker arm, 23. second driving cylinder, 223. second articulated frame;

[0035] 31. First support, 311. Connecting body, 312. Connecting head, 32. Guide frame. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0037] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present disclosure. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0038] In the description of the present disclosure, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0039] In the description of the present disclosure, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, upright, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0040] In the following description, the first direction A corresponds to Figure 7The descriptions of the second direction B and the third direction C are all for the state where the box 10 is laid flat, and the state where the box turning machine clamps the box 10 laid flat. That is, the second direction B corresponds to Figure 4 and 5 The left and right directions in Figure 6 and Figure 7 The third direction C corresponds to Figure 4 and Figure 5 It should be understood that the above description of directions is only for the convenience of describing the present disclosure and simplifying the description. The first direction A, the second direction B and the third direction C do not indicate or imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0041] The embodiment of the present disclosure provides a box turner for holding and turning a box body 10, and the box turner includes a clamping mechanism. The clamping mechanism includes two clamping parts arranged at intervals. The interval between the two clamping parts is configured as a storage platform 10. Each clamping part includes: a first clamping rod 11, a first driving device, a second clamping rod 21 and a second driving device.

[0042] The first driving device is drivingly connected to the first clamping rod 11 and is configured to move the first clamping rod 11 to move closer to or away from the box wall of the box body 10 on the side close to the clamping portion.

[0043] The second clamping rod 21 is spaced apart from the first clamping rod 11. The space between the first clamping rod 11 and the second clamping rod 21 is configured to accommodate a convex strip 101 disposed on a side wall of the box body 10 facing the clamping portion. The distance of the space between the first clamping rod 11 and the second clamping rod 21 is greater than the height of the convex strip 101.

[0044] The second driving device is drivingly connected to the second clamping rod 21 and is configured to move the second clamping rod 21 to move closer to or away from the box wall of the box body 10 on the side close to the clamping portion.

[0045] For example, Figure 5 , Figure 6 and Figure 7As shown, it shows the situation that the clamping mechanism of the box turning machine clamps the box body 10 placed flat on the support seat 20. The two clamping parts of the clamping mechanism can be arranged at intervals along the first direction A. The first clamping rod 11 can extend along the second direction B perpendicular to the first direction A. The first clamping rod 11 can be driven by the first driving device, and move in the first direction A and the second direction B to approach or move away from the box wall of the box body 10. The second clamping rod 21 can extend along the second direction B, and have a gap between it and the first clamping rod 11 in the third direction C, and the distance of the gap is greater than the height of the convex strip 101. The second clamping rod 21 can be driven by the second driving device, and move in the first direction A and the second direction B to approach or move away from the box wall of the box body 10.

[0046] The clamping mechanism of the box turning machine disclosed in the present invention includes two clamping parts arranged at intervals, the distance between the first clamping rod 11 and the second clamping rod 21 of the clamping parts is greater than the height of the convex strip 101 provided on the box body 10, and a first driving device is provided to be drivingly connected to the first clamping rod 11, and a second driving device is provided to be drivingly connected to the second clamping rod 21. This arrangement is conducive to preventing the height of the convex strip 101 from exceeding the minimum spacing distance between the first clamping rod 11 and the second clamping rod 21 due to deformation and other factors, thereby preventing the first clamping rod 11 and the second clamping rod 21 from moving close to the box wall of the box body 10 close to the clamping part, thereby preventing the clamping mechanism from being unable to stably clamp the box body 10, resulting in production interruption and reduced production efficiency.

[0047] In some embodiments, the clamping mechanism is configured such that before clamping the box body 10 , the first clamping rod 11 is at an initial spacing from the ridge 101 along the height direction of the ridge 101 , and the first clamping rod 11 and the second clamping rod 21 are respectively located on both sides of the height direction of the ridge 101 .

[0048] The box turning machine further comprises: two first supports 31, a third driving device and a first detection device. The two first supports 31 are arranged one-to-one with the two clamping parts. The first supports 31 are connected to one end of the same side of the first clamping rod 11 and the second clamping rod 21 of the corresponding clamping part.

[0049] For example, Figure 5 As shown, the first support 31 may include a connecting body 311 and two connecting heads 312, the two connecting heads 312 are respectively arranged in a one-to-one correspondence with the first clamping rod 11 and the second clamping rod 21, and the two connecting heads 312 extend along the second direction B and are respectively connected to the first clamping rod 11 and the second clamping rod 21. Figure 5 Left end drive connection shown.

[0050] The first detection device is configured to detect whether the first clamping rod 11 is in contact with the box wall.

[0051] The third driving device is drivingly connected to the first support 31 and is signal-connected to the first detection device. The third driving device is configured to drive the first support 31 to move so that the first clamping rod 11 approaches the convex strip 101 until it is in contact with the box wall when the first detection device detects that the first driving device drives the first clamping rod 11 to approach the box body 10 with an initial gap with the convex strip 101 until it is in contact with the box wall, so that the first clamping rod 11 approaches the convex strip 101 until it is in contact with the convex strip 101.

[0052] For example, Figure 5 As shown, the third driving device may include a cylinder and a guide frame 32 arranged in the vertical direction, the guide frame 32 includes a slide groove arranged in the vertical direction, the first support 31 can slide in the slide groove, and the third driving device drives the first support 31 to slide in the slide groove, so that the first clamping rod 11 connected to the first support 31 moves upward to approach the convex strip 101 or moves downward away from the convex strip 101. This arrangement is conducive to making the first clamping rod 11 stably approach or move away from the convex strip 101 in the vertical direction when the box body 10 is placed flat, and is conducive to making the first clamping rod 11 fit tightly with the convex strip 101.

[0053] For example, the initial interval may be selected within the range of 0.1 mm-0.3 mm, and the distance between the first clamping rod 11 and the second clamping rod 21 may be, for example, 0.1 mm greater than the height of the convex strip 101 .

[0054] When the first detection device detects that the first clamping rod 11 is in contact with the box wall, the third driving device drives the first support 31 to move, so that the first clamping rod 11 moves to be in contact with the convex strip 101. This arrangement is conducive to the first clamping rod 11 being in contact with the box wall of the box body 10 and moving upward to support the box body 10, so that the clamping mechanism is conducive to clamping the box body 10 more stably.

[0055] Providing the first detection device is conducive to realizing the automated operation of the clamping mechanism, thereby improving the operating efficiency and accuracy of the clamping mechanism, reducing manual operations and saving costs.

[0056] In addition, Figures 4 to 7 In the illustrated embodiment, during the clamping process of the clamping mechanism (during which the box body 10 is always lying flat), since the distance between the first clamping rod 11 and the second clamping rod 21 in the vertical direction (i.e., along the height direction of the ridge 101) is greater than the height of the ridge 101, after the first clamping rod 11 moves to fit with the ridge 101, the second clamping rod 21 must be located above the ridge 101 in height. Therefore, this arrangement is conducive to avoiding the situation where the ridge 101 cannot enter the gap between the first clamping rod 11 and the second clamping rod 21 due to the low height of the second clamping rod 21.

[0057] In some embodiments, the box turner further includes a second detection device. The second detection device is configured to detect whether the first clamping rod 11 is in contact with the convex strip 101. When the second detection device detects that the first clamping rod 11 is in contact with the convex strip 101, the second driving device drives the second clamping rod 21 to move toward the box body 10 until the second clamping rod 21 is in contact with the box wall of the box body 10.

[0058] The first clamping rod 11 and the second clamping rod 21 are driven independently, which is conducive to accurately positioning the first clamping rod 11 first, and then driving the second clamping rod 21 to perform the clamping action, thereby avoiding the first clamping rod 11 and the second clamping rod 21 being clamped synchronously and unable to correct the misalignment or deflection. In addition, this arrangement is also conducive to increasing the flexibility of the box body 10. For example, this arrangement allows the size and shape of the cross section of the box body 10 parallel to its bottom surface to be varied (such as a structural shape that is wide at the bottom and narrow at the top).

[0059] In some embodiments, the box turning machine further includes: a support base 20, a first switch and a third detection device.

[0060] The support base 20 is configured to place the box 10. Figure 4 As shown, the support base 20 may include a plurality of pillars 201 and a storage platform 202. The plurality of pillars 201 extend in the vertical direction and are arranged below the storage platform 202 to support the storage platform 202. The storage platform 202 may be configured to include a transmission belt, a conveyor roller, or any other device with a translational transmission function. This arrangement is conducive to connecting the storage platform 202 in series with other workstations, so that the box 10 can be directly transported from other workstations to the storage platform 202 through a conveyor belt or other device with a translational transmission function, which is conducive to reducing manual operations and improving work efficiency.

[0061] The first switch is configured to be closed when the box body 10 is located at the waiting position for clamping on the support seat 20 to wait for clamping by the clamping mechanism. The first switch may be a position switch or a photoelectric switch.

[0062] exist Figures 4 to 7 In the illustrated embodiment, in the position to be clamped, the box body 10 is placed flat on the support seat 20, and the convex strip 101 of the box body 10 can roughly coincide with the symmetrical center line of the first clamping rod 11 and the second clamping rod 21 extending along the third direction C. This arrangement is beneficial for the clamping mechanism to clamp the box body 10 without interference with the convex strip 101, thereby improving the clamping stability of the clamping mechanism.

[0063] The third detection device is connected to the first switch signal, and is configured to detect whether the first clamping rod 11 has an initial interval with the convex strip 101 when the first switch is closed. The third driving device is connected to the third detection device signal, and is configured to drive the first support 31 to move when the third detection device detects that the interval between the first clamping rod 11 and the convex strip 101 along the height direction of the convex strip 101 deviates from the initial interval before the first driving device drives the first clamping rod 11 to approach the box body 10, until the third detection device detects that the first clamping rod 11 has an initial interval with the convex strip 101. For example, the third driving device can drive the first support 31 to move along the third direction C so that the first clamping rod 11 has an initial interval with the convex strip 101.

[0064] This arrangement is conducive to detecting the position of the first clamping rod 11 by the third detection device when the first switch confirms that the box body 10 is in the position to be clamped. When the box body 10 is in the position to be clamped, if the height position of the first support 31 is too low, it may cause the second clamping rod 21 to overlap with the convex strip 101 in the vertical direction, so that the second clamping rod 21 cannot approach the box wall of the box body 10 to clamp the box body 10; if the height position of the first support 31 is too high, it may cause the first clamping rod 11 to overlap with the convex strip 101 in the vertical direction, so that the first clamping rod 11 cannot approach the box wall of the box body 10 to clamp the box body 10.

[0065] In addition, the positions of the first clamping rod 11 and the second clamping rod 21 relative to the convex strip 101 are adjusted simultaneously only by adjusting the position of the first support 31, and in particular, the first clamping rod 11 is adjusted so that the first clamping rod has an initial interval with the convex strip 101 along the height direction of the convex strip 101. This arrangement is conducive to avoiding the deviation of the overall position of the first clamping rod 11 and the second clamping rod 21, which causes the convex strip 101 to be unable to be embedded between the first clamping rod 11 and the second clamping rod 21, thereby causing the clamping mechanism to be unable to clamp the box body 10. This arrangement is conducive to maintaining the clamping process of the clamping mechanism smoothly, improving the accuracy of clamping, and realizing automatic adjustment, reducing manual intervention, and thus improving the operating efficiency of the box turning machine.

[0066] In some embodiments, the first support 31 includes a support body, a first connection end, and a second connection end. The first connection end is disposed on the support body and is drivingly connected to the first clamping rod 11. The second connection end is disposed on the support body and is drivingly connected to the second clamping rod 21, and is spaced apart from the first connection end. The first connection end is configured to be movable relative to the support body to drive the first clamping rod 11 to move closer to or away from the second clamping rod 21. The second connection end is configured to be movable relative to the support body to drive the second clamping rod 21 to move closer to or away from the first clamping rod 11.

[0067] The first connection end and the second connection end can be connected to the support body through a drive cylinder, a motor-driven screw nut transmission mechanism or a gear rack transmission mechanism, so as to move relative to the support body under the drive of the drive cylinder or the motor. For example, the drive connection relationship between the first connection end or the second connection end and the support body can be explained by taking the oil cylinder driving the first connection end to move relative to the support body as an example. The first connection end is connected to the support body through the oil cylinder, and the piston rod of the oil cylinder is extended and retracted along the third direction C (i.e., the vertical direction). Then, the first clamping rod 11 connected to the first connection end can be connected to the piston rod of the oil cylinder by drive, and the first clamping rod 11 is reciprocated along the third direction C by the piston movement of the piston rod to approach or move away from the second clamping rod 21.

[0068] This arrangement is conducive to driving the first clamping rod 11 and the second clamping rod 21 to move closer to or away from each other, thereby facilitating the expansion and change of the interval between the first clamping rod 11 and the second clamping rod 21, so that the protrusion 101 can more easily enter the interval between the first clamping rod 11 and the second clamping rod 21, thereby facilitating the improvement of the clamping stability of the clamping mechanism.

[0069] In some embodiments, the first driving device includes a first fixed frame 121, two first rocking arms 122 and a first driving cylinder 13. The first fixed frame 121 is configured to be located on a side of the first clamping rod 11 away from the box body 10. The two first rocking arms 122 are respectively hinged at both ends of the first fixed frame 121 and the first clamping rod 11. The first fixed frame 121, the two first rocking arms 122 and the first clamping rod 11 form a first four-bar linkage. The first driving cylinder 13 is drivingly connected to the first four-bar linkage and is configured to change the angle between the first rocking arm 122 and the first clamping rod 11 to drive the first clamping rod 11 to approach or move away from the box wall of the box body 10.

[0070] For example, Figure 6 As shown, at this time, the box body 10 is placed flat on the support seat 20, and one of the two first rocking arms 122 that is close to the guide frame 32 along the second direction B is connected to the first clamping rod 11 through the first hinge frame 123, and the first driving cylinder 13 includes a piston rod, and is hinged to the first hinge frame 123 through the piston rod. The distance between the first fixed frame 121 of the first four-bar linkage and the box body 10 along the first direction A is a constant value. When the piston rod of the first driving cylinder 13 is extended, the two first rocking arms 122 of the first four-bar linkage swing clockwise, so that the first clamping rod 11 moves in the first direction A and the second direction B at the same time to approach the box wall of the box body 10 until it fits with the box wall of the box body 10.

[0071] Similarly, when the first driving cylinder 13 contracts, the two first rocking arms 122 of the first four-bar linkage swing counterclockwise, and the first clamping rod 11 moves in the first direction A and the second direction B at the same time to move away from the box wall of the box body 10 .

[0072] The structural setting of the first driving device is conducive to stably driving the first clamping rod 11 to move, and is conducive to realizing the first clamping rod 11 approaching or moving away from the box wall of the box body 10 only by the extension and retraction of the first driving cylinder 13, which is conducive to more stable and accurate control of the movement of the first clamping rod 11.

[0073] In some embodiments, the second driving device includes a second fixed frame 221, two second rocking arms 222, and a second driving cylinder 23. The second fixed frame 221 is configured to be located on a side of the second clamping rod 21 away from the box body 10. The two second rocking arms 222 are respectively hinged at both ends of the second fixed frame 221 and the second clamping rod 21. The second fixed frame 221, the two second rocking arms 222, and the second clamping rod 21 form a second four-bar linkage. The second driving cylinder 23 is drivingly connected to the second four-bar linkage, and is configured to change the angle between the second rocking arm 222 and the second clamping rod 21 to drive the second clamping rod 21 to approach or move away from the box wall of the box body 10.

[0074] For example, Figure 7 As shown, at this time, the box body 10 is placed flat on the support seat 20, and one of the two second rocking arms 222 that is close to the guide frame 32 along the second direction B is connected to the second clamping rod 21 through the second hinge frame 223, and the second driving cylinder 23 is configured to be connected to the second hinge frame 223. When the second driving cylinder 23 is in an extended state, the second four-bar linkage drives the second clamping rod 21 to move in the first direction A and the second direction B at the same time to approach the box wall of the box body 10. The second driving cylinder 23 may include a piston rod, and the piston rod of the second driving cylinder 23 is hinged to the second hinge frame 223. The piston rod of the second driving cylinder 23 is extended, so that the two second rocking arms 222 swing clockwise, thereby driving the second clamping rod 21 to approach the box wall of the box body 10 until it fits with the box wall of the box body 10.

[0075] Similarly, when the second driving cylinder 23 is in a retracted state, the second four-bar linkage can drive the second clamping rod 21 to move simultaneously in the first direction A and the second direction B to move away from the box wall of the box body 10. The piston rod of the second driving cylinder 23 is retracted, causing the two second rocking arms 222 to swing counterclockwise, thereby causing the second clamping rod 21 to move away from the box wall of the box body 10.

[0076] Since the second drive device has the same structure as the first drive device, and the second drive device drives the second clamping rod 21 in the same manner as the first drive device drives the first clamping rod 11, the advantages of the structural arrangement and driving mode of the second drive device can refer to the advantages of the structural arrangement of the first drive device and will not be elaborated here.

[0077] In some embodiments, the first clamping rod 11 and the second clamping rod 21 are configured such that the cross-sectional area perpendicular to the height direction of the convex strip 101 is larger than the cross-sectional area perpendicular to the height direction of the convex strip 101 when clamping the box body 10. Figure 6 As shown, the size of the first clamping rod 11 and the second clamping rod 21 along the second direction B is set to be larger than the size of the convex strip 101 along the second direction B, and the size of the first clamping rod 11 and the second clamping rod 21 along the first direction A is larger than the size of the convex strip 101 along the first direction A. For another example, the size of the first clamping rod 11 and the second clamping rod 21 along the second direction B can be set to be equal to the size of the convex strip 101 along the second direction B, and the size of the first clamping rod 11 and the second clamping rod 21 along the first direction A is larger than the size of the convex strip 101 along the first direction A.

[0078] Since when the box body 10 is in the clamping position, the first clamping rod 11 and the second clamping rod 21 of the clamping part clamp the convex strip 101 on the box wall of the box body 10 along the third direction C, this arrangement is beneficial to increase the contact range between the first clamping rod 11 and the second clamping rod 21 and the convex strip 101, thereby facilitating improving the stability of the clamping mechanism in clamping the box body 10.

[0079] In some embodiments, the lengths of the first clamping rod 11 and the second clamping rod 21 are configured to be greater than the length of the convex strip 101 .

[0080] During the process of the box turning machine turning over the box 10, the clamping part may fail to clamp the box 10 due to mechanical vibration or equipment wear, and the box 10 may move along the length direction of the convex strip 101. Setting the length of the first clamping rod 11 and the second clamping rod 21 to be greater than the length of the convex strip 101 is conducive to ensuring that the two surfaces of the convex strip 101 facing each other along its own height direction are still completely located between the first clamping rod 11 and the second clamping rod 21 in the above situation, which is conducive to the two clamping parts supporting the box 10 to prevent it from slipping and causing safety hazards.

[0081] On the other hand, an embodiment of the present disclosure provides a silk making system, which includes an auxiliary conveying device and a box turning machine provided by an embodiment of the present disclosure.

[0082] The box turning machine includes a support base 20, which is configured to place a box body 10. The auxiliary conveying device is configured to transport the box body 10 to the support base 20. After the box body 10 is transported to the position to be clamped on the support base 20, the box turning machine holds and turns the box body 10. The box body 10 is configured to contain shredded tobacco. The box body 10 can be a cube.

[0083] The silk making system of the disclosed embodiment has the advantages of the box turning machine of the disclosed embodiment.

[0084] The following combination Figures 4 to 9 The box turning machine and the silk making system according to the embodiments of the present disclosure are described in detail.

[0085] like Figure 4 As shown, the silk making system includes a box turning machine and an auxiliary conveying device (not shown). The box turning machine includes a support base 20, and the support base 20 is configured to place the box body 10. The support base 20 includes four pillars 201 and a storage table 202 with a square bottom surface. The four pillars 201 are respectively arranged at the four corners of the bottom surface of the storage table 202 to stably support the storage table 202, and the position to be clamped of the box body 10 is located on the storage table 202.

[0086] The storage platform 202 includes a conveying roller, which extends along the second direction B and is connected to the auxiliary conveying device. The box 10 transported by the auxiliary conveying device is then conveyed by the conveying roller to a clamping position on the storage platform 202 for clamping by the clamping mechanism of the box turning machine.

[0087] The support base 20 includes two upright side walls 203 arranged opposite to each other, which are respectively arranged on both sides of the storage platform 202 along the first direction A. The first fixing frame 121 and the second fixing frame 221 of the clamping portion close to each side wall 203 are arranged in contact with the side wall 203, so that during the clamping process of the clamping mechanism, the two side walls 203 support the first fixing frame 121 and the second fixing frame 221 respectively, which is conducive to the stable driving of the first driving device and the second driving device.

[0088] like Figures 4 to 7 As shown, the box turning machine includes a clamping mechanism, two first supports 31, a guide frame 32, a third driving device and a support base 20. For ease of understanding and description, the first direction A is defined as corresponding to Figure 6 and Figure 7 The left and right directions in the second direction B correspond to Figure 4 and Figure 5 The third direction C is the vertical direction.

[0089] like Figure 5As shown, the first bracket 31 includes a connecting body 311 and two connecting heads 312. The cross section of the connecting body 311 perpendicular to the first direction A is circular. The two connecting heads 312 of the first bracket 31 are arranged at intervals along the vertical direction. Each connecting head 312 extends along the second direction B. One end of the connecting head 312 close to the guide frame 32 along the second direction B is fixedly connected to the connecting body 311.

[0090] The connecting body 311 is mounted on the guide frame 32, and the third driving device drives the connecting body 311 to move along the third direction C on the guide frame 32, so that the first support 31 moves along the third direction C. The guide frame 32 is arranged as follows Figure 4 and Figure 5 The left side of the support base 20 is shown.

[0091] like Figure 6 and 7 As shown, the clamping mechanism includes two clamping parts, and the two clamping parts are arranged along Figure 7 The first direction A shown is arranged at intervals to accommodate and clamp the box body 10. Each clamping part includes a first clamping rod 11, a first driving device, a second clamping rod 21 and a second driving device. The first clamping rod 11 is located below the convex strip 101 of the box body 10, and before the clamping mechanism clamps the box body 10, there is an initial interval between the top surface of the first clamping rod 11 and the bottom surface of the convex strip 101 along the third direction, and the second clamping rod 21 is configured to be located above the convex strip 101. The first driving device includes a first articulated frame 123, a first fixed frame 121, two first rocking arms 122 and a first driving cylinder 13. The second driving device includes two second articulated frames 223, a second fixed frame 221, two second rocking arms 222 and a second driving cylinder 23.

[0092] The piston rod of the first driving cylinder 13 is connected to one end of the first clamping rod 11 close to the guide frame 32 along the second direction B through the first articulated frame 123, and the other end of the first driving cylinder 13 is hinged to the connecting head 312 located below along the third direction C.

[0093] The first fixing frame 121 and the two first rocking arms 122 are arranged on a side of the first clamping rod 11 away from the supporting seat 20. Figure 7 and Figure 8 As shown, the first fixing frame 121 is integrally formed with the side wall 203 of the support seat 20. Two first rockers 122 are disposed between the first fixing frame 121 and the first clamping rod 11, and are respectively hinged to the first fixing frame 121 and the first clamping rod 11 to form a parallelogram mechanism.

[0094] The piston rod of the first driving cylinder 13 extends and pushes the first articulated frame 123, so that the two first rocking arms 122 swing in the clockwise direction, thereby driving the first clamping rod 11 to approach the box wall in the first direction A until the first clamping rods 11 of the two clamping parts are in contact with the box wall to clamp the box body 10.

[0095] The piston rod of the first driving cylinder 13 contracts and pulls the first hinge frame 123 , so that the two first rocking arms 122 swing in the counterclockwise direction, thereby driving the first clamping rod 11 away from the box wall in the first direction A to release the box body 10 .

[0096] The piston rod of the second driving cylinder 23 is hinged to one end of the second clamping rod 21 along the second direction B close to the guide frame 32 through the second articulated frame 223, and the other end of the second driving cylinder 23 is hinged to the upper connecting head 312 along the third direction C.

[0097] The second fixing frame 221 and the two second rocking arms 222 are arranged on the side of the second clamping rod 21 away from the support seat 20. The two second rocking arms 222 are arranged between the second fixing frame 221 and the second clamping rod 21, and are respectively hinged with the second fixing frame 221 and the second clamping rod 21 to form a parallelogram mechanism. The principle of the second driving device driving the second clamping rod 21 to move is the same as the principle of the first driving device driving the first clamping rod 11, which will not be elaborated here.

[0098] The box turning machine may further include a first detection device, which is connected to the first clamping rod 11 by signal and is configured to detect whether the first clamping rod 11 is in contact with the box wall. The third driving device is configured to drive the first support 31 to move upward along the third direction C when the first detection device detects that the first driving device drives the first clamping rod 11 to approach the box body 10 to contact with the box wall, so that the first clamping rod 11 moves upward from a position where the interval with the convex strip 101 along the third direction C is an initial interval to a clamping position in contact with the convex strip 101, that is, the top surface of the first clamping rod 11 is in contact with the bottom surface of the convex strip 101 of the box body 10 placed on the support seat 20.

[0099] The second driving device can drive the second clamping rod 21 to move closer to the box body 10 after the first clamping rod 11 is in contact with the convex strip 101. The box turning machine can also include a second detection device, which is configured to detect whether the first clamping rod 11 is in contact with the convex strip 101. The second driving device can be connected to the second detection device by signal, and is configured to drive the second clamping rod 21 to move so that the second clamping rod 21 is close to the box body 10 until the second clamping rod 21 is in contact with the box wall of the box body 10 when the second detection device detects that the first clamping rod 11 is in contact with the convex strip 101.

[0100] According to the following Figure 4 , Figure 8 and Fig. 9 Detailed description of the working principle of the box turning machine:

[0101] like Figure 4 As shown, first, the auxiliary conveying device transports the box 10 to the conveying rollers of the storage table 202, and then the conveying rollers convey the box 10 to the position to be clamped.

[0102] Subsequently, the first switch is closed, and the third detection device detects whether the first clamping rod 11 has an initial interval with the convex strip 101. If the third detection device detects that the first clamping rod 11 and the convex strip 101 do not have an initial interval, the third detection device sends a signal indicating that the first clamping rod 11 and the convex strip 101 do not have an initial interval to the third driving device, and the third driving device drives the connecting body 311 to move upward or downward after receiving the signal until the third detection device detects that the first clamping rod 11 and the convex strip 101 have an initial interval.

[0103] Subsequently, the first driving device drives the first clamping rod 11 to approach the box wall of the box body 10 on the side close to the clamping portion in the first direction A until the first clamping portion 11 is in contact with the box wall. After the first detection device detects that the first clamping rod 11 is in contact with the box wall, it sends a signal to the third driving device, and the third driving device receives the signal and drives the connecting body 311 to move upward along the third direction C until the first clamping rod 11 is in contact with the convex strip 101.

[0104] After the second detection device detects that the first clamping rod 11 is in contact with the convex strip 101, it sends a signal to the second driving device. The second driving device receives the signal and drives the second clamping rod 21 to move so that the second clamping rod 21 is close to the box body 10 in the first direction A until the second clamping rod 21 is in contact with the box wall of the box body 10.

[0105] like Figure 8 As shown, after the clamping mechanism clamps the box body 10 according to the above steps, the third driving device drives the connecting body 311 of the first support 31 to continue to move upward on the guide frame 32 to the top of the guide frame 32, so that the clamping mechanism clamps the box body 10 and moves the box body 10 upward.

[0106] Then, if Fig. 9 As shown, the first support 31 rotates around the axis of the first support 31 and drives the clamping mechanism to rotate synchronously, thereby the clamping box 10 is turned over.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solution for protection requested by the present disclosure.

Claims

1. A box turning machine for holding and turning over a box (10), characterized in that: The box turning machine comprises a clamping mechanism, the clamping mechanism comprises two clamping parts arranged at an interval, the interval between the two clamping parts is configured to accommodate the box body (10), and each of the clamping parts comprises: A first clamping rod (11); A first driving device, drivingly connected to the first clamping rod (11), configured to move the first clamping rod (11) to move closer to or farther away from a box wall of the box body (10) on a side close to the clamping portion; a second clamping rod (21) arranged at a distance from the first clamping rod (11), the distance between the first clamping rod (11) and the second clamping rod (21) being configured to accommodate a convex strip (101) provided on a side wall of the box body (10) facing the clamping portion, and the distance between the first clamping rod (11) and the second clamping rod (21) being greater than the height of the convex strip (101); and The second driving device is drivingly connected to the second clamping rod (21) and is configured to move the second clamping rod (21) to move closer to or farther away from a box wall of the box body (10) on a side close to the clamping portion.

2. The box turning machine according to claim 1, characterized in that: The clamping mechanism is configured such that before clamping the box body (10), the first clamping rod (11) is located at a position with an initial spacing from the convex strip (101) along the height direction of the convex strip (101), and the first clamping rod (11) and the second clamping rod (21) are respectively located on both sides of the height direction of the convex strip (101), and the box turning machine further comprises: Two first supports (31) are provided in one-to-one correspondence with the two clamping parts, and the first supports (31) are connected to one end of the first clamping rod (11) and the second clamping rod (21) of the corresponding clamping part on the same side; A first detection device is configured to detect whether the first clamping rod (11) is in contact with the box wall; and The third driving device is connected to the first support (31) by driving and connected to the first detection device by signal, and is configured to drive the first support (31) to move so that the first clamping rod (11) approaches the convex strip (101) until it is in contact with the convex strip (101) when the first detection device detects that the first driving device drives the first clamping rod (11) to approach the box body (10) with the initial interval with the convex strip (101) until it is in contact with the box wall, so as to make the first clamping rod (11) approach the convex strip (101) until it is in contact with the convex strip (101).

3. The box turning machine according to claim 2, characterized in that: The box turning machine further comprises a second detection device, wherein the second detection device is configured to detect whether the first clamping rod (11) is in contact with the convex strip (101); The second driving device is signal-connected to the second detection device, and is configured to drive the second clamping rod (21) to move so that the second clamping rod (21) approaches the box body (10) until the second clamping rod (21) is in contact with the box wall of the box body (10) when the second detection device detects that the first clamping rod (11) is in contact with the convex strip (101).

4. The box turning machine according to claim 2, characterized in that: The box turning machine also includes: A support seat (20) configured to place the box (10); A first switch is configured to close when the box (10) is located at a waiting position for clamping on the support seat (20) to wait for clamping by the clamping mechanism; and a third detection device, connected to the first switch signal, and configured to detect whether the first clamping rod (11) has the initial interval with the convex strip (101) when the first switch is closed; The third driving device is signal-connected to the third detecting device and is configured such that: before the first driving device drives the first clamping rod (11) to approach the box body (10), when the third detecting device detects that the interval between the first clamping rod (11) and the convex strip (101) along the height direction of the convex strip (101) deviates from the initial interval, the first support (31) is driven to move until the third detecting device detects that the first clamping rod (11) and the convex strip (101) have the initial interval.

5. The box turning machine according to claim 2, characterized in that: The first support (31) comprises: Support body; a first connection end, arranged on the support body and drivingly connected to the first clamping rod (11); and A second connecting end, arranged on the support body, drivingly connected to the second clamping rod (21), and spaced apart from the first connecting end; The first connecting end is configured to be movable relative to the support body so as to drive the first clamping rod (11) to move closer to or away from the second clamping rod (21), and / or the second connecting end is configured to be movable relative to the support body so as to drive the second clamping rod (21) to move closer to or away from the first clamping rod (11).

6. The box turning machine according to claim 1, characterized in that: The first driving device of each of the clamping parts comprises: A first fixing frame (121), located on a side of the first clamping rod (11) away from the other clamping portion; Two first rocking arms (122) are respectively hinged to the first fixing frame (121) and the two ends of the first clamping rod (11), the first fixing frame (121), the two first rocking arms (122) and the first clamping rod (11) forming a first four-bar linkage; and A first driving cylinder (13) is drivingly connected to the first four-bar linkage and is configured to change the angle between the first rocker arm (122) and the first clamping rod (11) so as to drive the first clamping rod (11) to move closer to or farther from the box (10).

7. The box turning machine according to claim 1, characterized in that: The second driving device of each of the clamping parts comprises: A second fixing frame (221) is configured to be located on a side of the second clamping rod (21) away from the other clamping portion; two second rocking arms (222) are respectively hinged to the second fixing frame (221) and the two ends of the second clamping rod (21); the second fixing frame (221), the two second rocking arms (222) and the second clamping rod (21) form a second four-bar linkage; and The second driving cylinder (23) is drivingly connected to the second four-bar linkage and is configured to change the angle between the second rocker arm (222) and the second clamping rod (21) so as to drive the second clamping rod (21) to move closer to or farther from the box (10).

8. The box turning machine according to any one of claims 1 to 7, characterized in that: The first clamping rod (11) and / or the second clamping rod (21) are configured such that, in a state of clamping the box body (10), a cross-sectional area perpendicular to the height direction of the convex strip (101) is larger than a cross-sectional area of ​​the convex strip (101) perpendicular to its own height direction.

9. The box turning machine according to any one of claims 1 to 7, characterized in that: The length of the first clamping rod (11) and / or the second clamping rod (21) is configured to be greater than the length of the convex strip (101).

10. A silk making system, characterized in that: include: The box turner according to any one of claims 1 to 9, comprising a support base (20), wherein the support base (20) is configured to place the box body (10); and An auxiliary conveying device is configured to transport the box (10) to the supporting seat (20).

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