SD5 type tobacco cutter knife roll locking device

Abstract

The utility model discloses a knife roll locking device of an SD5 type tobacco cutter, which relates to the technical field of cigarette production equipment and comprises a telescopic cylinder, an expansion sleeve and a countersunk pull rod, the telescopic cylinder is mounted on a rack of the tobacco cutter, the expansion sleeve is connected with the telescopic cylinder and sequentially penetrates through the rack of the tobacco cutter and a knife roll frame of the tobacco cutter, and the countersunk pull rod is mounted on the expansion sleeve. A countersunk through hole is formed in the center of the expansion sleeve, the countersunk pull rod is slidably connected to the countersunk through hole in a sleeved mode and connected with a piston rod of the telescopic air cylinder, the outer diameter of the end, away from the telescopic air cylinder, of the countersunk pull rod is larger than the hole diameter of the countersunk through hole, and the countersunk pull rod is pulled back through the telescopic air cylinder to open the expansion sleeve, so that the knife roll frame and the rack are firmly fixed. The technical problems that in the prior art, due to the fact that a knife roll frame of an SD5 type tobacco cutter shifts due to vibration generated during operation of the tobacco cutter, a gap between a knife roll and a knife door cannot be kept constant, quality accidents of tobacco shred running and unqualified width are caused, and the tobacco shred width uniformity is improved are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cigarette production equipment technical field, especially relate to a SD5 type cutter roll locking device of cutter. BACKGROUND

[0002] In the cigarette production and processing technology, need to use the special cutter to cut the sheet tobacco into a certain width of tobacco, to facilitate the production and processing of the later process.

[0003] The cutter is composed of frame, transmission system, feeding system, cutting system, knife door system, knife grinding system, electric control system and dust removal system. At present, the cutter roll of the cutter is controlled by the cylinder. When maintaining, the cylinder pushes the cutter roll to the maintenance position away from the knife door, which is convenient for the maintenance personnel to maintain the knife door, copper chain and related components. When grinding, the cylinder pulls the cutter roll back to the grinding position of the knife door, which is convenient for the grinding device to grind the cutter on the cutter roll. When producing, the cylinder pulls the cutter roll back to the cutting position of the knife door again, which meets the requirement of the knife door gap of the production process.

[0004] In the actual production process, when each driving component of the SD5 type cutter is running, a certain vibration is generated, which causes the gap between the cutter roll and the knife door to be unable to keep constant, and further causes the quality accidents such as tobacco cutting and width unqualified, which affects the uniformity of the tobacco width. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a SD5 type cutter roll locking device, so as to overcome the technical problem that the cutter roll frame of the SD5 type cutter is displaced due to the vibration generated when the cutter is running, which causes the gap between the cutter roll and the knife door to be unable to keep constant, and further causes the quality accidents such as tobacco cutting and width unqualified, and improves the uniformity of the tobacco width. The specific technical scheme is as follows:

[0006] A SD5 type cutter roll locking device, comprising:

[0007] A telescopic cylinder is installed on the frame of the cutter;

[0008] A expansion sleeve is installed on the telescopic cylinder and located at the same end with the output end of the telescopic cylinder, and the expansion sleeve penetrates the frame of the cutter and the cutter roll frame of the cutter in sequence;

[0009] A countersunk head pull rod is connected with the output end of the telescopic cylinder and driven by the telescopic cylinder, and the countersunk head pull rod slides in the expansion sleeve. The diameter of the outward end of the countersunk head pull rod is greater than the diameter of the initial state of the expansion sleeve, and the expansion sleeve is expanded by the countersunk head pull rod.

[0010] Preferably, the outward end of the expansion sleeve is divided into four equal parts along the radial direction, and a gap of 0.5mm is left between each part.

[0011] Preferably, the through hole on the expansion sleeve is provided as a countersunk through hole, the countersunk pull rod comprises a countersunk end and a pull rod end, the pull rod end is connected with the piston rod of the telescopic cylinder, and the countersunk end is in a circular truncated cone structure, and the small-diameter end of the countersunk end is connected with the pull rod end.

[0012] Preferably, the pull rod end is welded with the piston rod of the telescopic cylinder.

[0013] Preferably, the rack is further provided with a gas path connecting assembly, the gas path connecting assembly comprises a three-way electromagnetic valve, a first gas pipe and a second gas pipe, the first end of the three-way electromagnetic valve is connected with the rotary cylinder of the tobacco cutting machine, the second end is connected with the rod cavity of the telescopic cylinder through the first gas pipe, and the third end is connected with the rodless cavity of the telescopic cylinder through the second gas pipe.

[0014] Preferably, the telescopic cylinder is connected with the rack through a plurality of fastening bolts.

[0015] Preferably, the material of the expansion sleeve is rubber.

[0016] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0017] The locking device drives the reciprocating movement of the countersunk pull rod through the telescopic cylinder, so that the expansion sleeve installed through the rack and the cutter roll frame of the tobacco cutting machine is expanded, the rack and the cutter roll frame of the tobacco cutting machine are positioned, fixed and not deviated from each other, the locking effect is realized, the displacement of the cutter roll frame of the SD5 tobacco cutting machine due to the vibration of the tobacco cutting machine during operation is solved, the gap between the cutter roll and the cutter door cannot be kept constant, the quality accidents such as tobacco cutting and unqualified width are caused, and the technical problem of improving the uniformity of tobacco width is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0019] Figure 1 is the structural schematic view of the utility model.

[0020] Figure 2 is Figure 1 is the enlarged sectional view of A in the figure.

[0021] Figure 3 is the structural schematic view of the countersunk pull rod in the utility model.

[0022] Figure 4 The structure diagram of the expansion sleeve in the utility model.

[0023] Main figure mark explanation:

[0024] 10- telescopic air cylinder, 11- fastening bolt, 20- frame, 21- rotary air cylinder, 30- expansion sleeve, 31- countersunk through hole, 32- arc sleeve petal, 40- cutter roll frame, 50- countersunk pull rod, 51- countersunk end, 52- pull rod end, 60- three-way electromagnetic valve, 61- first air pipe, 62- second air pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] In the description of the utility model, it is necessary to explain that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0027] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number. If the terms "first", "second", "third" are described, they are only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0028] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "connection", "connect", "arrangement" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through the indirect connection of intermediate medium, can be the communication of two elements inside. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances. The embodiments are described below according to the overall structure of the utility model.

[0029] Embodiment

[0030] As Figures 1 to 4 The utility model embodiment provides a SD5 type tobacco cutter knife roll locking device for fixing the knife roll frame 40 of tobacco cutter and the rack 20, prevents the displacement of knife roll in the process of tobacco cutter operation due to vibration, influences the effect and tobacco cutting quality, specific and includes telescopic cylinder 10, expansion sleeve 30 and countersunk head pull rod 50, the telescopic cylinder 10 is installed on the rack 20 of tobacco cutter, and the piston rod is towards the inside of the rack 20, expansion sleeve 30 is connected with telescopic cylinder 10, and in turn penetrates the rack 20 of tobacco cutter and the knife roll frame 40 of tobacco cutter, the through hole on expansion sleeve 30 is set as countersunk head through hole 31, the countersunk head pull rod 50 is slidably sleeved in the countersunk head through hole 31, and one end is connected with the piston rod of telescopic cylinder 10, and the other end extends from the end of expansion sleeve 30 away from telescopic cylinder 10, the outer diameter of the end of countersunk head pull rod 50 away from telescopic cylinder 10 is greater than the hole diameter of countersunk head through hole 31, and the countersunk head pull rod 50 is pulled back by telescopic cylinder 10 to prop open expansion sleeve 30, so that the knife roll frame 40 and the rack 20 are firmly fixed, solve the displacement of the knife roll frame 40 of SD5 type tobacco cutter in the prior art due to the vibration generated when tobacco cutter operates, lead to the gap between knife roll and knife door cannot keep constant, further cause tobacco cutting deviation, width unqualified quality accident, reduce the technical problem of tobacco width uniformity.

[0031] In some preferred embodiments, the countersunk head pull rod 50 includes a countersunk head end 51 and a pull rod end 52, the pull rod end 52 is connected with the piston rod of the telescopic cylinder 10, further, the pull rod end 52 is fixedly connected with the piston rod of the telescopic cylinder 10 in the form of welding, the countersunk head end 51 is a circular truncated cone structure, one end with smaller outer diameter is connected with the pull rod end 52, and the outer diameter of the other end with larger outer diameter is greater than the hole diameter of the countersunk head through hole 31;

[0032] In some preferred embodiments, in order to make the countersunk end 51 more easily inserted into the countersunk through hole 31, the expansion sleeve 30 is facilitated to expand, the machine frame 20 and the cutter roller frame 40 are respectively provided with a machine frame hole and a cutter roller frame 40 hole, the machine frame hole and the cutter roller frame 40 hole have the same diameter and are coaxially arranged, and the expansion sleeve 30 sequentially penetrates the machine frame 20 and the cutter roller frame 40 through the machine frame hole and the cutter roller frame 40 hole.

[0033] In some preferred embodiments, in order to make the cutter roller frame 40 and the cutter roller normally work when the device is not working, the diameter of the expansion sleeve 30 in the initial state is less than the diameter of the cutter roller frame 40 hole by 0.5 mm, so as to ensure that the cutter roller can normally move when the pneumatic inner supporting clamp is not working.

[0034] The end of the telescopic air cylinder 10 connected with the machine frame 20 is arrayed with a plurality of fastening bolts 11, the telescopic air cylinder 10 is connected with the machine frame 20 through the fastening bolts 11, and in order to better expand the expansion sleeve 30 to fix the cutter roller frame 40 and the machine frame 20, the expansion sleeve 30 is made of rubber.

[0035] When it is needed to fix the position of the cutter roller, the telescopic air cylinder 10 drives the countersunk pull rod 50 to be recovered, the countersunk end 51 of the countersunk pull rod 50 is extruded into the countersunk through hole 31, the expansion sleeve 30 is expanded to firmly fix the cutter roller frame 40 and the machine frame 20, and the cutter roller frame 40 is prevented from being displaced during the operation of the tobacco cutting machine, so as to drive the cutter roller to be displaced, when the tobacco cutting machine needs to move the cutter roller to a maintenance position or a knife grinding position, the telescopic air cylinder 10 pushes out the countersunk pull rod 50, at this time, the expansion sleeve 30 is contracted, so as not to affect the displacement of the cutter roller frame 40.

[0036] In some preferred embodiments, the device further comprises a gas path connecting assembly, the gas path connecting assembly comprises a three-way electromagnetic valve 60, a first gas pipe 61 and a second gas pipe 62, the first end of the three-way electromagnetic valve 60 is connected with the original rotary air cylinder 21 of the tobacco cutting machine, the second end is connected with the rod cavity of the telescopic air cylinder 10 through the first gas pipe 61, and the third end is connected with the rodless cavity of the telescopic air cylinder 10 through the second gas pipe 62.

[0037] It is worth mentioning that the output end of the rotating cylinder 21 is provided with a rotating protrusion in the form of a cylinder, the end face of which forms a semicircular step, and a protrusion is also provided on the cutter roller frame 40, and the protrusion corresponds to the rotating protrusion. When the protruding part of the rotating protrusion is in contact with the protrusion on the cutter roller frame 40, it is in the grinding position. The rotating cylinder 21 continues to rotate, and when the semicircular step (i.e. the concave surface on the rotating protrusion) on the rotating protrusion is in contact with the protrusion on the cutter roller frame 40, it is in the cutting position, and the cutter roller frame 40 is closer to the machine frame 20. The rotating protrusion can also limit the cutter roller frame 40 to prevent the end face of the cutter roller frame 40 from directly contacting the end face of the machine frame 20.

[0038] Further, through the gas path connection assembly, the same gas path is used as the original rotating cylinder 21 of the tobacco cutter, and no new gas path is needed, which simplifies the structure of the device. The rod cavity of the telescopic cylinder 10 is the cavity with a piston rod in the telescopic cylinder 10, and the rodless cavity of the telescopic cylinder 10 is the cavity without a piston rod in the telescopic cylinder 10. When the rod cavity of the telescopic cylinder 10 is supplied with gas, the piston rod of the telescopic cylinder 10 is retracted to drive the countersunk pull rod 50 to retract to expand the expansion sleeve 30. When the rodless cavity of the telescopic cylinder 10 is supplied with gas, the piston rod of the telescopic cylinder 10 is pushed out to drive the countersunk end 51 of the countersunk pull rod 50 away from the expansion sleeve 30, so that the expansion sleeve 30 is retracted.

[0039] In some preferred embodiments, the end of the expansion sleeve 30 outwardly is divided into four equal parts along the radial direction, and a gap of 0.5 mm is left between each part, so that the countersunk pull rod 50 can better expand the expansion sleeve 30, and the locking ability of the device to the cutter roller is improved.

[0040] During maintenance, the cylinder on the tobacco cutter pushes the cutter roller frame 40 to the maintenance position away from the cutter door, which is convenient for maintenance personnel to maintain the cutter door, copper chain and related components. At this time, the piston rod of the telescopic cylinder 10 is extended. After the maintenance is completed, the cylinder pulls the cutter roller frame 40 back to the position close to the machine frame 20, at which time the piston rod of the telescopic cylinder 10 is retracted, and the rotating cylinder 21 is rotated to align the protruding part on the rotating protrusion with the corresponding protrusion on the cutter roller frame 40, so that it is in the grinding position at this time, which is convenient for the grinding device to grind the tobacco cutter. When the grinding is completed, the rotating cylinder 21 continues to rotate to align the concave surface on the rotating protrusion with the corresponding protrusion on the cutter roller frame 40, at which time the telescopic cylinder 10 continues to retract, and the cylinder on the tobacco cutter continues to drive the cutter roller frame 40 to approach the machine frame 20, so that it is in the cutting position at this time, and the cutter roller performs the tobacco cutting operation.

[0041] In summary, the utility model discloses an embodiment provides a kind of SD5 type tobacco cutter cutter roll locking device, by expanding sleeve and the cutter roll frame of rack of tobacco cutter are penetrated, and one sunk pull rod is slidably sleeved in expanding sleeve, set up sunk pull rod and telescopic cylinder connection, the outer diameter of its end far from telescopic cylinder is greater than the inner diameter of expanding sleeve, when needing to fix cutter roll frame, retract to pull back sunk pull rod by telescopic cylinder, sunk pull rod expands expanding sleeve, expanding sleeve expands to firmly fix cutter roll frame and rack, solve the cutter roll frame of SD5 tobacco cutter in prior art, because the vibration generated when tobacco cutter operates, displacement occurs, lead to the gap between cutter roll and cutter door cannot keep constant, in turn cause tobacco cutting to run piece, width unqualified quality accident, improve the technical problem of uniformity of tobacco width.

[0042] The foregoing description of specific exemplary embodiments of the present application is intended to be illustrative only and is not intended to limit the application to the precise forms disclosed. Many modifications and variations are possible in light of the above teachings without departing from the spirit or essential characteristics of the present application. Thus, the specific embodiments described above are merely illustrative and do not limit the application as defined in the claims. The specific features, structures, materials or characteristics described above can be combined in any suitable manner in one or more embodiments or examples. The exemplary embodiments are selected and described for the purpose of explanation and illustration and are not intended to be limiting of the application. The scope of the application is limited only by the claims.

Claims

1. A locking device for a cutter bar of a SD5 type tobacco cutter, characterized in that, The utility model relates to a tobacco cutting machine, which comprises: a telescopic cylinder (10) mounted on a frame (20) of the tobacco cutting machine; a sleeve (30) mounted on the telescopic cylinder (10) and located at the same end as the output end of the telescopic cylinder (10), the sleeve (30) penetrating the frame (20) and a cutter roller frame (40) of the tobacco cutting machine in sequence; a sunk pull rod (50) connected to the output end of the telescopic cylinder (10) and driven by the telescopic cylinder (10), the sunk pull rod (50) sliding in the sleeve (30), the diameter of the outward end of the sunk pull rod (50) being greater than the initial diameter of the sleeve (30), the sleeve (30) being expanded by the sunk pull rod (50).

2. A locking device for a cutter bar of a SD5 type tobacco cutter according to claim 1, characterized in that The outward end of the sleeve (30) is divided into four equal parts along the radial direction, and a gap of 0.5 mm is left between each part.

3. A locking device for a cutter bar of a SD5 type tobacco cutter according to claim 1, characterized in that The through hole of the sleeve (30) is a sunk through hole (31), the sunk pull rod (50) comprises a sunk end (51) and a pull rod end (52), the pull rod end (52) being connected to the piston rod of the telescopic cylinder (10), the sunk end (51) being a circular truncated cone structure, the small-diameter end of the sunk end (51) being connected to the pull rod end (52).

4. A cutter bar locking device for a SD5 type tobacco cutter according to claim 3, characterized in that The pull rod end (52) is welded to the piston rod of the telescopic cylinder (10).

5. A locking device for a cutter bar of a SD5 type tobacco cutter according to claim 1, characterized in that, The frame (20) is further provided with a gas path connecting assembly, the gas path connecting assembly comprising a three-way electromagnetic valve (60), a first gas pipe (61) and a second gas pipe (62), the first end of the three-way electromagnetic valve (60) being connected to a rotary cylinder (21) of the tobacco cutting machine, the second end being connected to the rod cavity of the telescopic cylinder (10) through the first gas pipe (61), and the third end being connected to the rodless cavity of the telescopic cylinder (10) through the second gas pipe (62).

6. A locking device for a cutter bar of a SD5 type tobacco cutter according to claim 1, characterized in that The telescopic cylinder (10) is connected to the frame (20) by a plurality of fastening bolts (11).

7. A locking device for a cutter bar of a SD5 type tobacco cutter according to claim 1, characterized in that The sleeve (30) is made of rubber.

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