Automatic positioning device for gluing roller

Abstract

The utility model relates to the technical field of gluing rollers, in particular to an automatic positioning device for a gluing roller. According to the technical scheme, the gluing device comprises a fixing nut, a gluing roller and a gluing roller shaft, the positions, close to the two ends, of the outer surface of the gluing roller shaft are sleeved with the fixing nut and a transmission gear respectively, the outer surface of the gluing roller shaft is sleeved with the gluing roller, and the gluing roller is located between the fixing nut and the transmission gear; and conical inclined surfaces are arranged on the inner sides of the fixing nut and the transmission gear and two ends of the gluing roller. The automatic positioning device can play a role in automatically positioning the gluing roller during gluing, and prevents the gluing roller from generating larger radial run-out in the gluing process due to an assembly clearance, so that the thickness uniformity during gluing is ensured, the rejection rate is reduced, and the effective operation rate of a unit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glue rollers, in particular to an automatic positioning device for glue rollers. Background Art

[0002] At present, the three major materials of filter cigarettes are cigarette sticks, filter segments and tipping paper. For the filter tipping machine, the three materials are supplied along different routes respectively, and after merging, they are made into filter cigarettes along one route. Among them, in the tipping paper supply stage, the kraft paper is unrolled, tested, pulled, aligned, glued, tested, preheated, cut, separated and other actions, and finally becomes a paper sheet coated with glue, which is glued to the "group cigarette" one by one on the converging drum wheel. The gluing action is completed by the gluing device, which mainly includes three parts: glue roller mechanism, glue control roller mechanism and oscillation roller mechanism. The gluing mechanism is mainly composed of glue roller shaft, glue roller, knurled fixing nut and transmission gear.

[0003] At present, for the assembly of the glue roller, a certain assembly gap is set between the glue roller and the glue roller shaft during the processing. The assembly gap will cause the radial runout of the glue roller to be large during operation, affecting the uneven thickness of the glue coating on the glue roller, increasing the scrap rate of the product and reducing the effective operation rate of the unit. Therefore, we propose an automatic positioning device for the glue roller. Utility Model Content

[0004] The utility model aims to provide an automatic positioning device for a glue roller, which can automatically position the glue roller in the gluing process, avoid the glue roller from having a large radial runout during the gluing process due to the assembly gap, thereby ensuring the uniformity of the thickness during gluing, reducing the scrap rate and improving the effective operation rate of the unit. The utility model solves the problem that a certain assembly gap is set between the glue roller and the glue roller shaft during the processing for the assembly of the glue roller, and the assembly gap causes the glue roller to have a large radial runout during operation, which affects the uneven thickness of the glue coating on the glue roller, increases the scrap rate of the product, and reduces the effective operation rate of the unit.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic positioning device for a glue roller, comprising a fixing nut, a glue roller and a glue roller shaft, wherein the outer surface of the glue roller shaft is respectively sleeved with a fixing nut and a transmission gear near the two ends, the outer surface of the glue roller shaft is sleeved with a glue roller, and the glue roller is located between the fixing nut and the transmission gear, and conical inclined surfaces are provided on the inner sides of the fixing nut and the transmission gear and on both ends of the glue roller.

[0006] Preferably, the conical inclined surfaces on the inner sides of the fixing nut and the transmission gear are matched with the conical inclined surfaces at both ends of the glue roller, and the conical inclined surfaces on the inner sides of the fixing nut and the transmission gear are respectively in contact with the conical inclined surfaces at both ends of the glue roller, which plays a role in automatic positioning of the glue roller. In the process of the glue roller rotating with the glue roller shaft, the glue roller is prevented from having a large radial runout during the gluing process due to the assembly gap, thereby ensuring the uniformity of the thickness during gluing, reducing the scrap rate and improving the effective operation rate of the unit.

[0007] Preferably, the fixing nut and the glue roller shaft are connected via threads.

[0008] Preferably, a limiting ring is provided on the outer surface of the glue roller shaft near the outer side of the transmission gear, and the limiting ring and the glue roller shaft are integrally processed to limit the transmission gear.

[0009] Preferably, a threaded countersunk hole is provided on the outer surface of the fixing nut, and a locking screw is inserted into the threaded countersunk hole. The locking screw in the threaded countersunk hole is turned so that its end contacts the thread on the outer surface of the rubber roller shaft, thereby locking and fixing the fixing nut to prevent it from loosening.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model achieves the effect of automatically positioning the glue roller in the gluing process by arranging the glue roller shaft, the transmission gear, the glue roller, the fixing nut and the conical inclined surface, so as to avoid the glue roller from having a large radial runout in the gluing process due to the assembly gap, thereby ensuring the uniformity of thickness during gluing, reducing the scrap rate and improving the effective operation rate of the unit; the conical inclined surfaces on the fixing nut and the transmission gear respectively contact with the conical inclined surfaces at both ends of the glue roller, so as to automatically position the glue roller; when the glue roller rotates along with the glue roller shaft, the glue roller is prevented from having a large radial runout in the gluing process due to the assembly gap, thereby ensuring the uniformity of thickness during gluing.

[0012] 2. The utility model achieves the effect of locking and fixing the fixing nut to prevent it from loosening by providing a threaded countersunk hole and a locking screw. The locking screw inside the threaded countersunk hole is turned so that its end contacts the thread on the outer surface of the rubber roller shaft, thereby locking and fixing the fixing nut to prevent it from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0016] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of B.

[0017] Figure numerals: 1. fixing nut; 2. glue roller; 3. glue roller shaft; 4. limiting ring; 5. transmission gear; 6. locking screw; 7. threaded countersunk hole; 8. conical slope. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] like Figure 1-Figure 4 As shown, the utility model proposes an automatic positioning device for a glue roller, comprising a fixing nut 1, a glue roller 2 and a glue roller shaft 3. The outer surface of the glue roller shaft 3 is respectively sleeved with a fixing nut 1 and a transmission gear 5 near the two ends. The fixing nut 1 and the glue roller shaft 3 are connected by a thread. The outer surface of the fixing nut 1 is provided with a threaded countersunk hole 7, and a locking screw 6 is inserted into the threaded countersunk hole 7. The locking screw 7 in the threaded countersunk hole 6 is screwed so that its end contacts the thread on the outer surface of the glue roller shaft 3, thereby locking and fixing the fixing nut 1 to prevent it from loosening.

[0020] A limit ring 4 is provided on the outer surface of the upper glue roller shaft 3 near the outer side of the transmission gear 5. The limit ring 4 and the upper glue roller shaft 3 are integrally processed to limit the transmission gear 5. The upper glue roller 2 is sleeved on the outer surface of the upper glue roller shaft 3, and the upper glue roller 2 is located between the fixing nut 1 and the transmission gear 5. Conical inclined surfaces 8 are provided on the inner sides of the fixing nut 1 and the transmission gear 5 and on both ends of the upper glue roller 2. The conical inclined surfaces 8 on the inner sides of the fixing nut 1 and the transmission gear 5 are matched with the conical inclined surfaces 8 at both ends of the upper glue roller 2, and the conical inclined surfaces 8 on the inner sides of the fixing nut 1 and the transmission gear 5 are respectively in contact with the conical inclined surfaces 8 at both ends of the upper glue roller 2, which plays a role in automatic positioning of the upper glue roller 2.

[0021] When the utility model is in use, the conical inclined surfaces 8 on the fixing nut 1 and the transmission gear 5 are in contact with the conical inclined surfaces 8 at both ends of the glue roller 2 respectively, which plays a role in automatically positioning the glue roller 2. In the process that the glue roller 2 rotates along the glue roller shaft 3, the glue roller 2 is prevented from having a large radial runout during the gluing process due to the assembly gap, thereby ensuring the uniformity of the thickness during gluing, reducing the scrap rate and improving the effective operation rate of the unit.

[0022] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An automatic positioning device for a glue roller, comprising a fixing nut (1), a glue roller (2) and a glue roller shaft (3), characterized in that: A fixing nut (1) and a transmission gear (5) are respectively sleeved on the outer surface of the glue roller shaft (3) near both ends; a glue roller (2) is sleeved on the outer surface of the glue roller shaft (3), and the glue roller (2) is located between the fixing nut (1) and the transmission gear (5); and conical inclined surfaces (8) are provided on the inner sides of the fixing nut (1) and the transmission gear (5) and on both ends of the glue roller (2).

2. The automatic positioning device for a glue roller according to claim 1, characterized in that: The conical inclined surfaces (8) on the inner sides of the fixing nut (1) and the transmission gear (5) are matched with the conical inclined surfaces (8) on both ends of the glue roller (2), and the conical inclined surfaces (8) on the inner sides of the fixing nut (1) and the transmission gear (5) are in contact with the conical inclined surfaces (8) on both ends of the glue roller (2).

3. The automatic positioning device for a glue roller according to claim 1, characterized in that: The fixing nut (1) and the glue roller shaft (3) are connected via threads.

4. The automatic positioning device for a glue roller according to claim 1, characterized in that: A limiting ring (4) is provided on the outer surface of the glue roller shaft (3) at a position close to the outer side of the transmission gear (5).

5. The automatic positioning device for a glue roller according to claim 1, characterized in that: The outer surface of the fixing nut (1) is provided with a threaded countersunk hole (7), and a locking screw (6) is inserted into the threaded countersunk hole (7).

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