Automatic cutting device for cigarette box strapping

Abstract

The present invention discloses an automatic cigarette box strapping device, which comprises a housing, an upper push knife block, a lower push knife block, a blade and a driving mechanism; wherein a cutting groove is arranged on the housing, and the cutting groove extends in the length direction of the housing; the upper push knife block is slidably arranged in the housing, and a knife storage groove is arranged on the upper push knife block, and the knife storage groove runs through in the height direction of the housing, and a limited position portion is arranged on the knife storage groove, and a first hinge is arranged in the knife storage groove; the lower push knife block is slidably arranged in the housing, and the lower push knife block is arranged below the upper push knife block, and a second hinge is arranged on the lower push knife block; the blade is rotatably arranged in the knife storage groove through the first hinge, and one end of the cutting blade is rotatably connected to the lower push knife block through the second hinge; the driving mechanism is connected to one end of the lower push knife block. The automatic cigarette box strapping device provided by the present invention realizes the automatic cutting of cigarette box strapping, effectively improves the cutting efficiency, and reduces the labor intensity.

Description

Technical Field

[0001] The invention relates to a cutting device, in particular to a device for automatically cutting cigarette box strapping tape. Background Art

[0002] Tobacco production is an assembly line operation. In order to ensure stable product quality, it is necessary to continuously provide raw materials for subsequent processes. Packing is the first production process of tobacco enterprises. It is necessary to open the cigarette box and use equipment to transfer the tobacco leaves from the cigarette box to the turnover box, and then transfer them to the next process.

[0003] Tobacco raw materials are packed in tobacco boxes. Each standard tobacco box is generally tied with 4 straps. When feeding and producing, it is necessary to manually cut the tobacco box straps with a homemade cutter. In order to ensure a steady supply of raw materials, it is necessary to manually stand in a fixed position and cut the tobacco box straps continuously. The workload of unpacking is large, the work efficiency is low, and the blade is relatively sharp, which poses a safety hazard. Summary of the invention

[0004] The purpose of the present invention is to provide a device for automatically cutting cigarette box strapping tape to solve the above-mentioned problems in the prior art, realize automatic cutting of cigarette box strapping tape, improve cutting efficiency and reduce labor intensity.

[0005] The present invention provides a device for automatically cutting cigarette box strapping tape, which comprises:

[0006] A shell, wherein a cutting groove is provided on the shell, and the cutting groove extends in the length direction of the shell;

[0007] An upper knife-pushing block is slidably arranged in the shell, and a knife-hiding groove is arranged on the upper knife-pushing block, the knife-hiding groove runs through the height direction of the shell, a limiting portion is arranged on the knife-hiding groove, and a first hinge is arranged in the knife-hiding groove;

[0008] A lower push knife block is slidably arranged in the housing, the lower push knife block is arranged below the upper push knife block, and a second hinge is arranged on the lower push knife block;

[0009] A blade, the blade is rotatably arranged in the blade storage groove through the first hinge, and one end of the blade is rotatably connected to the downward push blade block through the second hinge;

[0010] A driving mechanism is connected to one end of the lower push knife block and is used to drive the lower push knife block to move relative to the upper push knife block, and the lower push knife block drives the blade to extend out of the cutting groove or be stored in the knife storage groove.

[0011] As described above, the automatic cutting device for cigarette box strapping, wherein preferably, the limiting portion includes a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are arranged relatively to each other, the first limiting portion is perpendicular to the length direction of the shell, and the second limiting portion forms a preset angle with the length direction of the shell.

[0012] As described above, in the automatic cutting device for cigarette box strapping, preferably, a waist-shaped hole is provided on the blade, and the first hinge penetrates the waist-shaped hole.

[0013] The automatic cigarette box strapping cutting device as described above, preferably, further comprises a spring and a ball, wherein both ends of the spring are connected to the ball and the housing respectively, and the ball abuts against the upper push knife block.

[0014] As described above, in the automatic cigarette box strapping cutting device, preferably, a friction layer is provided on the ball.

[0015] As described above, in the automatic cigarette box strapping cutting device, preferably, a positioning cylinder is provided on the shell, the positioning cylinder protrudes from the surface of the shell, and one end of the spring is provided in the positioning cylinder.

[0016] As described above, in the automatic cigarette box strapping cutting device, preferably, the driving mechanism is a cylinder.

[0017] As described above, in the automatic cigarette box strapping cutting device, preferably, a fixing seat is provided at one end of the shell.

[0018] As described above, in the automatic cigarette box strapping cutting device, preferably, a cylindrical pin is provided on the fixing seat.

[0019] As described above, in the automatic cutting device for cigarette box strapping, preferably, four of the knife-hiding grooves and four of the blades are provided.

[0020] The automatic cigarette box strapping tape cutting device provided by the present invention realizes the automatic cutting of the cigarette box strapping tape, effectively improves the cutting efficiency and reduces the labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0022] Figure 1 Schematic diagram of the automatic cutting cigarette box strapping device provided by the embodiment of the present invention during storage (I);

[0023] Figure 2 Schematic diagram of the automatic cutting cigarette box strapping device provided by the embodiment of the present invention during storage (II);

[0024] Figure 3 Schematic diagram of the automatic cigarette box strapping cutting device provided by the embodiment of the present invention during cutting (I);

[0025] Figure 4 Schematic diagram of the automatic cigarette box strapping cutting device provided by the embodiment of the present invention during cutting (II);

[0026] Figure 5 Schematic diagram of the automatic cigarette box strapping cutting device provided by the embodiment of the present invention during cutting (III);

[0027] Figure 6 It is a structural schematic diagram of the upper push knife block;

[0028] Figure 7 A schematic diagram of the structure of a blade.

[0029] Description of reference numerals:

[0030] 100-housing 110-cutting groove 120-positioning tube

[0031] 130-fixed seat 200-upper push knife block 210-knife storage slot

[0032] 211-first limiting portion 212-second limiting portion 220-first hinge

[0033] 300- push-down knife block 310- second hinge 400- blade

[0034] 410-waist hole 500-ball 600-spring DETAILED DESCRIPTION

[0035] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0036] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprises" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be an intermediate component between the specific component and the first component or the second component. When a specific component is described as being connected to other components, the specific component may be directly connected to the other components without an intermediate component, or may not be directly connected to the other components but have an intermediate component.

[0038] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0039] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0040] like Figures 1 to 7 As shown, an embodiment of the present invention provides an automatic cigarette box strapping device, which includes a housing 100, an upper push knife block 200, a lower push knife block 300, a blade 400 and a driving mechanism; wherein the housing 100 is provided with a cutting groove 110, and the cutting groove 110 extends in the length direction of the housing 100; the upper push knife block 200 is slidably arranged in the housing 100, and the upper push knife block 200 is provided with a knife-hiding groove 210, which runs through in the height direction of the housing 100, and a limiting portion is provided on the knife-hiding groove 210, and a first hinge 220 is provided in the knife-hiding groove 210; The lower push knife block 300 is slidably set in the shell body 100, and the lower push knife block 300 is set below the upper push knife block 200. The second hinge 310 is set on the lower push knife block 300; the blade 400 is rotatably set in the knife storage groove 210 through the first hinge 220, and one end of the cutting blade 400 is rotatably connected to the lower push knife block 300 through the second hinge 310; the driving mechanism is connected to one end of the lower push knife block 300, and is used to drive the lower push knife block 300 to move relative to the upper push knife block 200, and the lower push knife block 300 drives the blade 400 to extend out of the cutting groove 110 or be stored in the knife storage groove 210.

[0041] In actual application, the automatic cigarette box strapping device can be arranged below the roller of the cigarette box conveyor, and the cigarette box can pass over the roller of the conveyor. The driving mechanism can drive the lower push knife block 300 to reciprocate relative to the upper push knife block 200, so as to drive the blade 400 to cut the strapping tape on the cigarette box through the lower push knife block 300.

[0042] Specifically, Figure 3 and Figure 4 As shown, when the driving mechanism pushes the lower push blade block 300 to move forward, the lower push blade block moves forward relative to the upper push blade block at the initial stage of movement, wherein the upper push blade block is stationary or the speed at which the upper push blade block moves forward is less than the speed at which the lower push blade block moves forward, so that the lower push blade block can move relative to the upper push blade block, thereby pushing the end of the blade 400 hinged with the lower push blade block to move forward at a speed greater than the speed at which the blade 400 hinged with the upper push blade block moves forward, wherein, if the upper push blade block is stationary, the movement speed of the blade 400 hinged with the upper push blade block is 0, thereby making the blade 400 rotate with the first hinge 220 as the axis, thereby making the top end of the blade 400 with a cutting edge gradually protrude from the cutting groove 110 on the shell 100, until the cutting edge of the blade 400 is opposite to the packing tape on the front cigarette box, the blade 400 abuts against the limiting portion on the knife storage groove 210, and the blade 400 stops rotating.

[0043] Here, “forward movement” refers to movement in the direction of the cigarette box having the strapping tape to be cut.

[0044] Then, the driving mechanism continues to push the lower push knife block 300 to move forward. Since the blade 400 abuts against the limiting portion of the knife storage groove 210, the blade 400 can drive the upper push knife block 200 to move forward synchronously with the lower push knife block 300 through the limiting portion, so that the blade 400 can move toward the direction of the cigarette box while maintaining the cutting state. When the blade 400 passes under the cigarette box, the packing tape on the cigarette box can be cut off. Figure 3 and Figure 4 shown.

[0045] Then, if Figure 1 and Figure 2As shown, the driving mechanism drives the lower push blade block 300 to perform a reverse return motion. At the beginning of the return motion of the lower push blade block 300, the lower push blade block 300 performs a return motion relative to the upper push blade block 200, that is, the upper push blade block 200 does not move or the speed of the return motion of the upper push blade block is lower than the speed of the return motion of the lower push blade block, so that the lower push blade block can move relative to the upper push blade block, thereby pulling the end of the blade 400 that is hinged to the lower push blade block to perform a return motion at a speed greater than that of the blade 400 that is hinged to the upper push blade block. The speed of the return movement at the hinge of the upper push knife block, wherein, if the upper push knife block does not move, the movement speed of the blade 400 at the hinge of the upper push knife block is 0, thereby making the blade 400 rotate in the opposite direction with the first hinge 220 as the axis, so that the top of the blade 400 with a cutting edge protruding from the cutting groove 110 can be gradually rotated and stored in the knife storage groove 210, until the blade 400 completely enters the interior of the cutting groove 110, the blade 400 abuts against the limiting portion on the knife storage groove 210, and the blade 400 stops rotating.

[0046] Then, the driving mechanism continues to pull the lower push knife block 300 to perform a reverse return motion. Since the blade 400 abuts against the limiting portion of the knife storage groove 210, the blade 400 can drive the upper push knife block 200 to perform a reverse return motion synchronously with the lower push knife block 300 through the limiting portion, so that the blade 400 can return to the initial position while maintaining the storage state, so as to cut the next cigarette box strapping tape. Figure 1 and Figure 2 shown.

[0047] Therefore, compared with the prior art, the automatic cutting device for cigarette box strapping realizes the automatic cutting of cigarette box strapping, effectively improves the cutting efficiency and reduces the labor intensity.

[0048] Among them, Figure 6 As shown, the above-mentioned limiting portion includes a first limiting portion 211 and a second limiting portion 212. The first limiting portion 211 and the second limiting portion 212 are arranged opposite to each other. The first limiting portion 211 is perpendicular to the length direction of the shell 100, and the second limiting portion 212 forms a preset angle with the length direction of the shell 100.

[0049] During the forward advancement of the push-down blade block 300, Figure 3 and Figure 4As shown, when the blade 400 rotates to abut against the first limit portion 211, the blade 400 is in an upright state, and the top end of the blade 400 with a cutting edge protrudes from the cutting groove 110, showing a cutting state. Among them, the upright state is a state in which the blade 400 is perpendicular to the direction of movement of the lower push knife block 300. When the lower push knife block 300 continues to move forward, the blade 400 can apply a forward driving force to the first limit portion 211, thereby driving the upper push knife block 200 to move forward synchronously with the lower push knife block 300 to achieve the cutting of the cigarette box strapping tape.

[0050] During the return motion of the lower pusher block 300, Figure 1 and Figure 2 As shown, when the blade 400 rotates to abut against the second limit portion 212, the blade 400 is inclined at the same angle as the second limit portion 212. At this time, the blade 400 is completely stored in the knife storage groove 210 and no longer protrudes from the cutting groove 110. When the lower push blade block 300 continues to make a return motion, the blade 400 can apply a force of reverse return motion to the second limit portion 212, thereby driving the upper push blade block 200 to make a return motion synchronously with the lower push blade block 300.

[0051] Further, if Figure 7 As shown, a waist-shaped hole 410 may be provided on the blade 400 , and the first hinge 220 passes through the waist-shaped hole 410 .

[0052] Since the lower push knife block 300 performs translational motion in the horizontal direction and the blade 400 is rotating, if the connection position of the first hinge 220 and the blade 400 is fixed, the distance between the first hinge 220 and the lower push knife block 300 will change, causing the upper push knife block to perform up and down motion, making it difficult to achieve stable cutting of the strapping tape.

[0053] To this end, in this embodiment, by providing a waist-shaped hole 410 on the blade 400, the waist-shaped hole 410 and the first hinge 220 can compensate for the change in the vertical distance of the position on the blade 400 relative to the lower pushing block during the rotation of the blade 400, thereby ensuring that the upper pushing block and the lower pushing block only make horizontal translation movements without up and down fluctuations.

[0054] It should be noted that the lower surface of the upper pushing blade block can be in contact with the upper surface of the lower pushing blade block to avoid the lower pushing blade block from driving the upper pushing blade block to move synchronously due to the friction between the lower pushing blade block and the upper pushing blade block when the lower pushing blade block starts to move forward, resulting in the blade 400 being unable to rotate out of the cutting groove 110.

[0055] For this reason, Figure 5As shown, the automatic cigarette box strapping cutting device may further include a spring 600 and a ball 500 , wherein two ends of the spring 600 are respectively connected to the ball 500 and the housing 100 , and the ball 500 abuts against the upper push knife block 200 .

[0056] Among them, the ball 500 can be pressed against the upper pushing knife block by the squeezing force of the spring 600, so that the upper pushing knife block can be subjected to the resistance brought by the action of the spring 600 and the ball 500 during movement. When the lower pushing knife block starts to move, the upper pushing knife block can remain motionless due to the resistance of the spring 600 and the ball 500, or the speed of the upper pushing knife block can be made lower than the speed of the lower pushing knife block, so that a relative motion with a speed difference is formed between the upper pushing knife block and the lower pushing knife block, thereby ensuring that the upper pushing knife block and the lower pushing knife block move synchronously after the rotation of the blade 400 is completed.

[0057] In order to make the friction resistance between the ball 500 and the upper push blade block greater than the friction resistance between the upper push blade block and the lower push blade block, a friction layer may be provided on the ball 500, and the friction layer may be a coating with a higher friction coefficient.

[0058] Further, if Figure 1 As shown, in order to prevent the spring 600 from twisting around and weakening the squeezing force on the upward pushing blade block, a positioning cylinder 120 can be provided on the housing 100 . The positioning cylinder 120 protrudes from the surface of the housing 100 , and one end of the spring 600 is disposed in the positioning cylinder 120 .

[0059] Furthermore, in order to facilitate the control of pushing the blade block downward, the driving mechanism may be a cylinder.

[0060] Further, if Figure 1 As shown, a fixing seat 130 may be provided at one end of the housing 100. The automatic cigarette box strapping device may be connected to the equipment via the fixing seat 130.

[0061] Specifically, a cylindrical pin may be provided on the fixing seat 130 so that the fixing seat 130 can be fixedly connected to the device through the cylindrical pin, which is convenient for operation.

[0062] It is understandable that in order to improve the cutting efficiency and ensure the complete cutting of the strapping tape to avoid partial cutting or missed cutting, four knife grooves 210 can be provided and four corresponding blades 400 can also be provided.

[0063] The automatic cigarette box strapping tape cutting device provided in the embodiment of the present invention realizes the automatic cutting of the cigarette box strapping tape, effectively improves the cutting efficiency and reduces the labor intensity.

[0064] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0065] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A device for automatically cutting cigarette box strapping, characterized in that: include: A shell (100), wherein a cutting groove (110) is provided on the shell (100), and the cutting groove (110) extends in the length direction of the shell (100); An upper knife pushing block (200) is slidably arranged in the housing (100), a knife storing groove (210) is arranged on the upper knife pushing block (200), the knife storing groove (210) is through in the height direction of the housing (100), a limiting portion is arranged on the knife storing groove (210), and a first hinge (220) is arranged in the knife storing groove (210); A lower push knife block (300) is slidably disposed in the housing (100), the lower push knife block (300) is disposed below the upper push knife block (200), and a second hinge (310) is disposed on the lower push knife block (300); a blade (400), wherein the blade (400) is rotatably disposed in the blade storage groove (210) via the first hinge (220), and one end of the blade (400) is rotatably connected to the downward-pushing blade block (300) via the second hinge (310); A driving mechanism connected to one end of the lower push blade block (300) and used for driving the lower push blade block (300) to move relative to the upper push blade block (200), so that the lower push blade block (300) drives the blade (400) to extend out of the cutting groove (110) or be stored in the blade storage groove (210); The limiting portion comprises a first limiting portion (211) and a second limiting portion (212); the first limiting portion (211) and the second limiting portion (212) are arranged opposite to each other; the first limiting portion (211) is perpendicular to the length direction of the shell (100); and the second limiting portion (212) forms a preset angle with the length direction of the shell (100); It also includes a spring (600) and a ball (500), wherein two ends of the spring (600) are respectively connected to the ball (500) and the housing (100), and the ball (500) abuts against the upper push knife block (200).

2. The automatic cutting device for cigarette box strapping according to claim 1 is characterized in that: The blade (400) is provided with a waist-shaped hole (410), and the first hinge (220) passes through the waist-shaped hole (410).

3. The automatic cutting device for cigarette box strapping according to claim 1 is characterized in that: A friction layer is provided on the ball (500).

4. The automatic cutting device for cigarette box strapping according to claim 1 is characterized in that: A positioning cylinder (120) is provided on the housing (100), the positioning cylinder (120) protrudes from the surface of the housing (100), and one end of the spring (600) is arranged in the positioning cylinder (120).

5. The automatic cutting device for cigarette box strapping according to claim 1 is characterized in that: The driving mechanism is a cylinder.

6. The automatic cutting cigarette box strapping device according to claim 1 is characterized in that: A fixing seat (130) is provided at one end of the housing (100).

7. The automatic cutting device for cigarette box strapping according to claim 6 is characterized in that: The fixing seat (130) is provided with a cylindrical pin.

8. The automatic cigarette box strapping cutting device according to claim 1 is characterized in that: Four of the knife-hiding grooves (210) and four of the knife blades (400) are provided.

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