A retractable jaw group, a tobacco clamping device and a method for using the same

Abstract

The present invention discloses a telescopic jaw group, which includes: a jaw group (54); a mounting plate (521); a jaw driving part (53); a plurality of the support plates (523) are arranged on the mounting plate (521) such that a plurality of jaws (541) are linearly arranged; the jaw driving part (53) drives the jaw group (54) to separate or approach each other linearly in the plane where the mounting plate (521) is located. The present invention also discloses a tobacco clamping device (2) composed of two or four groups of the telescopic jaw groups. The tobacco clamping device of the present invention can effectively adjust the clamping space according to the total amount of tobacco to be clamped.

Description

Technical Field

[0001] The present invention belongs to the field of equipment, and particularly relates to a telescopic jaw group, a tobacco clamping device and a using method thereof. Background Art

[0002] At present, the formula modularization of leaf tobacco redrying in cigarette factories' redrying workshops adopts the manual formula modularization method. There are many problems such as a large amount of labor, low formula uniformity, and increased dust in the production environment. When the tobacco comes in, it is usually packed in cardboard boxes, which need to be unpacked manually and then transported to an electronic belt scale for feeding.

[0003] In view of the disadvantages of the manual formula modularization method, tobacco clamping jaws have been developed. However, although the jaws can automatically clamp the tobacco, there are still problems. For example, according to different situations in the production workshop, the amount of tobacco to be clamped is also different; when the tobacco just arrives, the amount of tobacco to be clamped is large, while when the tobacco is almost completely clamped, the amount of tobacco that can be clamped is very small. The existing tobacco clamping jaws in the prior art are difficult to adapt to different total amounts of clamped tobacco. To solve the above problems, the present invention is proposed. Summary of the Invention

[0004] In view of the technical problem that the known tobacco clamping jaws in the prior art are difficult to adapt to different total amounts of clamped tobacco, the present invention provides a telescopic jaw group. In addition, the present invention also provides a tobacco clamping device having the telescopic jaw group.

[0005] The technical solution of the present invention is as follows:

[0006] The first aspect of the present invention discloses a telescopic jaw group, which includes:

[0007] A jaw group 54, the jaw group 54 includes a plurality of jaws 541, and each jaw 541 is vertically and fixedly installed at the end of one side of its respective support plate 523; the single jaw is rod-shaped, and one end is pointed; all the jaws are the same;

[0008] A mounting plate 521, on which there are two parallel guide lines 522, and on the guide lines 522 there are linear slide rails 522a; each support plate 523 can linearly slide on the two linear slide rails 522a;

[0009] A jaw driving part 53;

[0010] A plurality of the support plates 523 are arranged on the mounting plate 521 such that a plurality of jaws 541 are arranged in a line; the jaw driving part 53 drives the jaw group 54 to separate or approach each other linearly in the plane where the mounting plate 521 is located.

[0011] Preferably, the jaw driving part 53 is arranged in the middle of the mounting plate 521; a part of the plurality of jaws 541 is arranged on one side of the jaw driving part 53, and the other part of the jaws 541 is arranged on the other side of the jaw driving part 53; two second support plates 524 on the second jaws 541a adjacent to both sides of the jaw driving part 53 are fixed on the mounting plate 521.

[0012] Preferably, the jaw driving part 53 includes a motor 531 and a rack and pinion transmission mechanism 532. The rack and pinion transmission mechanism 532 includes a gear 532a and two racks 532b, 532c adapted to the gear 532a. The gear 532a and the motor 531 are connected by an output shaft 531a (note that the output shaft 531a is not marked in the figure). The two racks 532b, 532c are arranged in parallel on the radial two sides of the gear 532a; the two racks 532b, 532c are arranged on the mounting plate 521 and can slide radially; at least one support plate 523 at the bottom of the plurality of jaws 541 on one side of the jaw driving part 53 is fixed on the rack 532b, and at least one support plate 523 at the bottom of the plurality of jaws 541 on the other side of the jaw driving part 53 is fixed on the other rack 532c; the arranging directions of the racks 532b, 532c are parallel to the linear slide rail 522a.

[0013] Preferably, the retractable jaw group further includes: a plurality of first link rods 551 and a plurality of second link rods 552. The length of the second link rod 552 is greater than that of the first link rod 551; one ends of two first link rods 551 are hinged on the second support plate 524 through hinge shafts 553. The other ends of the two first link rods 551 are respectively hinged to one ends of two second link rods 552 through two hinge shafts 553. The middle parts of the two second link rods 552 are hinged on the adjacent support plate 523 through hinge shafts 553. The other ends of the two second link rods 552 are respectively hinged to one ends of two other second link rods 552 through two hinge shafts 553. All the support plates 523 on one side of the jaw driving part 53 are hinged in this way.

[0014] Preferably, there are two sliders 522b at the bottom of each support plate 523, and the sliders 522b can linearly slide on the linear slide rail 522a.

[0015] Preferably, a detection part 56 is arranged between the second jaws 541a; the detection part 56 is a pressure sensor.

[0016] In the second aspect of the present invention, a tobacco clamping device is disclosed. The tobacco clamping device 2 includes two groups or four groups of the above-mentioned retractable jaw groups; preferably four groups of retractable jaw groups.

[0017] Preferably, two sets of retractable jaw groups are arranged oppositely through a bidirectional lead screw 512, and at least one set of retractable jaw groups is driven by a clamping drive unit 51 so that the two sets of retractable jaw groups are separated or approximated relative to each other along the bidirectional lead screw 512.

[0018] Preferably, four sets of retractable jaw groups are arranged pairwise oppositely through a bidirectional lead screw 512 so that four mounting plates 521 form a quadrilateral, and the four sets of retractable jaw groups enclose a clamping space; at least two adjacent sets of retractable jaw groups are respectively driven by a clamping drive unit 51 so that the four sets of retractable jaw groups are separated or approximated relative to each other along the bidirectional lead screw 512 so that the clamping space can change.

[0019] A third aspect of the present invention discloses a method for using the tobacco clamping device, including the following steps: the four sets of retractable jaw groups in a separated state form a larger clamping space, and tobacco is placed into the clamping space formed by the four sets of retractable jaw groups; the clamping drive unit 51 is started so that two opposite sets of retractable jaw groups approach each other along the bidirectional lead screw 512; at the same time, the jaw drive unit 53 is started so that the gear 532a rotates to drive the two racks 532b, 532c to move relatively, and then the racks 532b, 532c drive at least one of the supporting plates 523 thereon to linearly slide along the linear slide rail 522a, and the supporting plate 523 drives all the jaws 541 to linearly approach each other through the first connecting rod 551 and the second connecting rod 552; at this time, the clamping space formed by the four sets of retractable jaw groups gradually becomes smaller to clamp the tobacco therein; the total amount of the clamped tobacco can be detected according to the detector 56;

[0020] The clamping drive unit 51 is started so that two opposite sets of retractable jaw groups move away from each other along the bidirectional lead screw 512; at the same time, the jaw drive unit 53 is started so that all the jaws 541 linearly move away from each other, and at this time the clamping space gradually becomes larger, and the clamped tobacco is placed at a designated position; then the next round of tobacco clamping is performed.

[0021] Advantages of the present invention:

[0022] For the retractable jaw group of the present invention, since it includes a plurality of jaws arranged in a straight line, the plurality of jaws can be driven by the jaw drive unit 53 to move away from or approach each other along the straight line; at the same time, the clamping drive unit is started to drive two opposite sets of retractable jaw groups to approach each other; so that the clamping space formed by the tobacco clamping device can be enlarged or reduced to adapt to a larger clamping total amount or contracted to adapt to a smaller clamping total amount; and can be effectively adjusted according to the total amount of the tobacco to be clamped; at the same time, since there is a detector 56, the total amount of the clamped tobacco can be detected and controlled. The tobacco clamping device of the present invention is convenient to use. Description of the Drawings

[0023] Figure 1It is a schematic diagram of a set of retractable jaw groups of the present invention.

[0024] Figure 2 is the present invention Figure 1 Partial enlarged view of the retractable jaw group at position A.

[0025] Figure 3 is the present invention Figure 1 Bottom view of the retractable jaw group.

[0026] Figure 4 It is a schematic diagram of a tobacco clamping device of the present invention having two sets of retractable jaw groups.

[0027] Figure 5 It is a schematic diagram of a tobacco clamping device of the present invention having four sets of retractable jaw groups.

[0028] Reference numerals are: 2, tobacco clamping device; 51, clamping drive part; 512, bidirectional lead screw; 521, mounting plate; 522, guide wire; 522a, linear slide rail; 522b, slider; 523, support plate; 524, second support plate; 53, jaw drive part; 531, motor; 531a, output shaft; 532, gear-rack transmission mechanism; 532a, gear; 532b / 532c, rack; 54, jaw group; 541, jaw; 541a, second jaw; 551, first connecting rod; 552, second connecting rod; 553, hinge shaft; 56, detecting part. Detailed implementation manners

[0029] The following will refer to the accompanying drawings to describe the present invention in detail. It should be noted that the present invention can be implemented in many different ways and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to enable those skilled in the art to understand the disclosed content of the present invention more thoroughly and comprehensively.

[0030] Refer to Figure 1, the jaw group 54, the jaw group 54 includes a plurality of jaws 541, each jaw 541 is respectively vertically and fixedly installed at the end of one side of its respective support plate 523 to form a line, and the jaws are rod-shaped; the mounting plate 521, there are two parallel guide lines 522 on the mounting plate 521, and there are linear slide rails 522a on the guide lines 522; each of the support plates 523 can linearly slide on the two linear slide rails 522a; the jaw driving part 53; a plurality of the support plates 523 are arranged on the mounting plate 521 such that a plurality of jaws 541 are in a straight line; the jaw driving part 53 drives the jaw group 54 to separate or approach each other linearly in the plane where the mounting plate 521 is located. The jaw driving part 53 is arranged in the middle of the mounting plate 521; a part of the plurality of jaws 541 is arranged on one side of the jaw driving part 53, and another part of the plurality of jaws 541 is arranged on the other side of the jaw driving part 53, generally symmetrically arranged; two second support plates 524 on the second jaws 541a adjacent to both sides of the jaw driving part 53 are fixed on the mounting plate 521. As Figure 3 shown, the jaw driving part 53 includes a motor 531 and a gear-rack transmission mechanism 532, the gear-rack transmission mechanism 532 includes a gear 532a and two racks 532b, 532c adapted to the gear 532a, the gear 532a and the motor 531 are connected through an output shaft 531a (note: there is a housing outside the output shaft 531a, not marked in the figure), the two racks 532b, 532c are arranged in parallel on the radial two sides of the gear 532a; the two racks 532b, 532c are arranged on the mounting plate 521 and can slide radially; at least one support plate 523 at the bottom of a plurality of jaws 541 on one side of the jaw driving part 53 is fixed on the rack 532b, and at least one support plate 523 at the bottom of a plurality of jaws 541 on the other side of the jaw driving part 53 is fixed on the other rack 532c; the arrangement direction of the racks 532b, 532c is parallel to the linear slide rail 522a.

[0031] Figure 2 is Figure 1 a partial enlarged view of the retractable jaw group at A, referring to Figure 2 and continuing to refer to Figure 1, a plurality of first linkages 551 and a plurality of second linkages 552, the length of the second linkage 552 being greater than that of the first linkage 551; one end of two first linkages 551 is hinged to the second support plate 524 by a hinge shaft 553, the other ends of the two first linkages 551 are respectively hinged to one end of two second linkages 552 by two hinge shafts 553, the middle parts of the two second linkages 552 are hinged to the adjacent support plate 523 by a hinge shaft 553, and the other ends of the two second linkages 552 are respectively hinged to one end of two other second linkages 552 by two hinge shafts 553, and all the support plates 523 on one side of the jaw driving part 53 are hinged in this way; the first linkage 551 and the second linkage 552 can rotate through the hinge shaft 553; there are two sliders 522b at the bottom of each support plate 523, and the sliders 522b can linearly slide on the linear slide rail 522a.

[0032] A tobacco clamping device 2 includes two sets (such as Figure 4 ) or four sets (such as Figure 5 ) of the above-mentioned telescopic jaw groups. The two telescopic jaw groups are arranged oppositely through a bidirectional lead screw 512, and at least one set of telescopic jaw groups is driven by a clamping driving part 51 so that the two telescopic jaw groups are separated or approached relative to each other along the bidirectional lead screw 512. The four telescopic jaw groups are arranged in pairs oppositely through the bidirectional lead screw 512 so that four mounting plates 521 form a quadrilateral, and the four telescopic jaw groups enclose a clamping space; at least two adjacent sets of telescopic jaw groups are respectively driven by the clamping driving part 51 so that the four sets of telescopic jaw groups are separated or approached relative to each other along the bidirectional lead screw 512 so that the clamping space can change; a detection member 56 is arranged between the second jaws 541a; the detection member 56 is a pressure sensor.

[0033] The usage method of the tobacco clamping device is as follows: the four sets of telescopic jaw groups in the separated state form a larger clamping space, and the tobacco is placed in the clamping space formed by the four sets of telescopic jaw groups; the clamping driving part 51 is started so that two opposite sets of telescopic jaw groups approach each other along the bidirectional lead screw 512; at the same time, the jaw driving part 53 is started so that the gear 532a rotates to drive the two racks 532b, 532c to move relatively, and then the racks 532b, 532c drive at least one of the support plates 523 thereon to linearly slide along the linear slide rail 522a, and the support plate 523 drives all the jaws 541 to approach each other linearly through the first linkage 551 and the second linkage 552; at this time, the clamping space formed by the four sets of telescopic jaw groups gradually becomes smaller to clamp the tobacco therein; the total amount of the clamped tobacco can be detected according to the detection member 56;

[0034] Start the clamping drive unit 51 to make the two opposite sets of retractable jaw groups move away from each other along the bidirectional lead screw 512; at the same time, start the jaw drive unit 53 to make all the jaws 541 move linearly away from each other. At this time, the clamping space gradually becomes larger, and the clamped tobacco is placed at the designated position; then the next round of tobacco clamping is carried out.

[0035] For the various specific technical features described in the above specific embodiments, they can be combined in any way without contradiction. For the sake of unnecessary repetition, the present invention does not separately describe various possible combination methods.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Any modification or equivalent replacement that does not depart from the scope of the present invention should be included within the technical solutions of the present invention.

Claims

1. A method for using a tobacco clamping device, characterized in that, The tobacco clamping device includes four sets of retractable jaw groups; the four sets of retractable jaw groups are arranged pairwise opposite through a bidirectional lead screw (512) so that four mounting plates (521) form a quadrilateral, and the four sets of retractable jaw groups enclose a clamping space; at least two adjacent sets of retractable jaw groups are respectively driven by a clamping driving part (51) so that the four sets of retractable jaw groups respectively move relatively away from or close to each other along the bidirectional lead screw (512) so that the clamping space can change; The retractable jaw group includes: a jaw group (54), the jaw group (54) includes a plurality of jaws (541), and each jaw (541) is respectively vertically and fixedly installed at the end of one side of its respective support plate (523); a mounting plate (521), there are two parallel guide lines (522) on the mounting plate (521), and there are linear slide rails (522a) on the guide lines (522); each of the support plates (523) can linearly slide on the two linear slide rails (522a); a jaw driving part (53); a plurality of the support plates (523) are arranged on the mounting plate (521) so that a plurality of jaws (541) are arranged in a line; the jaw driving part (53) drives the jaw group (54) to move relatively away from or close to each other in a linear direction in the plane where the mounting plate (521) is located; The jaw driving part (53) is arranged in the middle of the mounting plate (521); a part of the plurality of jaws (541) is arranged on one side of the jaw driving part (53), and another part of the plurality of jaws (541) is arranged on the other side of the jaw driving part (53); two second support plates (524) on the second jaws (541a) close to both sides of the jaw driving part (53) are fixed on the mounting plate (521); The jaw driving part (53) includes a motor (531) and a gear-rack transmission mechanism (532), the gear-rack transmission mechanism (532) includes a gear (532a) and two racks (532b, 532c) adapted to the gear (532a), the gear (532a) is connected to the motor (531) through an output shaft (531a), and the two racks (532b, 532c) are arranged in parallel on the radial two sides of the gear (532a); the two racks (532b, 532c) are arranged on the mounting plate (521) and can slide radially; at least one support plate (523) at the bottom of a plurality of jaws (541) on one side of the jaw driving part (53) is fixed on the rack (532b), and at least one support plate (523) at the bottom of a plurality of jaws (541) on the other side of the jaw driving part (53) is fixed on the other rack (532c); the arrangement direction of the racks (532b, 532c) is parallel to the linear slide rail (522a); The retractable jaw group further includes: a plurality of first linkages (551) and a plurality of second linkages (552), the length of the second linkages (552) being greater than that of the first linkages (551); one end of two first linkages (551) is hinged to the second support plate (524) through a hinge shaft (553), and the other ends of the two first linkages (551) are respectively hinged to one end of two second linkages (552) through two hinge shafts (553), the middle parts of the two second linkages (552) are hinged to the adjacent support plate (523) through a hinge shaft (553), and the other ends of the two second linkages (552) are respectively hinged to one end of two other second linkages (552) through two hinge shafts (553), and in this way, all the support plates (523) on one side of the jaw driving part (53) are hinged; There are two sliders (522b) at the bottom of each support plate (523), and the sliders (522b) can linearly slide on the linear slide rail (522a); A detection member (56) is arranged between the second jaws (541a); the detection member (56) is a pressure sensor; The using method of the tobacco clamping device includes the following steps: four groups of retractable jaw groups in a separated state form a larger clamping space, and tobacco is placed into the clamping space formed by the four groups of retractable jaw groups; the clamping driving part (51) is started to make two opposite groups of retractable jaw groups approach each other along the bidirectional lead screw (512); at the same time, the jaw driving part (53) is started to make the gear (532a) rotate to drive the two racks (532b, 532c) to move relatively, and then the racks (532b, 532c) drive at least one of the support plates (523) thereon to linearly slide along the linear slide rail (522a), and the support plate (523) drives all the jaws (541) to linearly approach each other through the first linkages (551) and the second linkages (552); at this time, the clamping space formed by the four groups of retractable jaw groups gradually becomes smaller to clamp the tobacco therein; the total amount of the clamped tobacco can be detected according to the detection member (56); The clamping driving part (51) is started to make two opposite groups of retractable jaw groups move away from each other along the bidirectional lead screw (512); at the same time, the jaw driving part (53) is started to make all the jaws (541) linearly move away from each other, and at this time, the clamping space gradually becomes larger, and the clamped tobacco is placed at a specified position; then the next round of tobacco clamping is carried out.

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