Adhesive tape center joint cutting device for case unpacking machine

Abstract

The utility model discloses an adhesive tape center joint cutting device for a case unpacking machine, which belongs to the technical field of case unpacking machines and comprises a width-adjustable centering mechanism, a left slotting component, a right slotting component, a conveyor and a case pushing mechanism. The conveyor is installed in the middle of the bottom side of the middle frame assembly, the box pushing mechanism is installed on the top of the middle frame assembly, and the width-adjustable centering mechanisms are installed on the two sides of the middle frame assembly and located below the left slotting assembly and the right slotting assembly. On one hand, the cigarette box width centering device can meet the width centering requirements of different cigarette boxes, equipment cost is reduced, the situation that internal cigarettes are damaged due to the fact that the cigarette boxes are damaged is avoided, on the other hand, after the width is adjustable and the air cylinder is elastically pressed, under the action of the box pushing mechanism, directional stable movement is better facilitated, and the production efficiency is improved. The cutting knife can stably cut the cigarette box center joint adhesive tape, the cutting stability is improved, and cutting is more thorough.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of adhesive tape middle slit cutting device for box opening machine, belong to cigarette posture correction equipment technical field. BACKGROUND

[0002] A fine cigarette is placed in a box, and needs to be taken out for order distribution. Conventional opening is performed manually, and the order distribution device is sent in for distribution. This method is inefficient and labor-intensive. To solve this problem, the inventor designed a fine cigarette box opening machine as disclosed in Chinese Patent Application No. 202311783640X. The opening middle slit device (Chinese Patent Application No. 2023117836414) is used in the fine cigarette box opening machine. The applicant found that the opening middle slit device can only cut the cigarette box with a single width after being fixed once. The width of the cigarette box cannot be changed at any time. The opening middle slit device cannot meet the cutting requirements after the width of the cigarette box is changed. Moreover, the fixed width can easily collide with the end of the guide rod when the cigarette box enters, causing damage. The distance between the two guide rods cannot be too small. When the distance is too wide, the bottom roller conveyor and the elasticity of the cigarette box can easily cause the cigarette to deviate during cutting. The cigarette is not completely centered and transported, which can easily lead to incomplete cutting during cutting. Moreover, the cutting range is small for different widths of the cigarette. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a kind of adhesive tape middle slit cutting device for box opening machine, can let cutting tool be more stable when cutting, cutting is more thorough, also can adapt to the cutting of different width range, also reduce the safety when cigarette box enters.

[0004] The technical scheme adopted by the utility model is as follows: a kind of adhesive tape middle slit cutting device for box opening machine, including width adjustable centering mechanism, left slit opening assembly, right slit opening assembly, conveyor and push box mechanism, left slit opening assembly and right slit opening assembly are respectively left-right symmetrical and installed on the two sides of middle frame assembly, conveyor is installed in the middle of the bottom side of middle frame assembly, push box mechanism is installed on the top of middle frame assembly, width adjustable centering mechanism is installed on the two sides of middle frame assembly and below left slit opening assembly and right slit opening assembly, for the centering of the conveyed cigarette box.

[0005] Further, the above-mentioned width adjustable centering mechanism includes left centering rod and right centering rod symmetrically arranged on both sides of the middle frame assembly. The left centering rod and the right centering rod are respectively fixedly connected to the cylinder rod of the first double-rod telescopic cylinder and the cylinder rod of the second double-rod telescopic cylinder. The cylinder seat of the first double-rod telescopic cylinder and the cylinder seat of the second double-rod telescopic cylinder are fixedly connected to the middle frame assembly through the mounting bracket.

[0006] Further, the cylinder rod end of the first double-rod telescopic cylinder and the cylinder rod end of the second double-rod telescopic cylinder are fixedly connected with a connecting plate, and the two connecting plates are fixedly connected with the left centering rod and the right centering rod respectively.

[0007] Further, the left centering rod and the right centering rod are both flat tubes, the length of which is greater than the length of the carton of cigarettes, and the height of which is higher than the conveying roller arranged on the conveyor, and the left centering rod and the right centering rod are provided with inclined guide portions on the side close to the carton of cigarettes.

[0008] Further, the mounting frame is an inverted L-shaped structure, the horizontal plate of which is provided with four symmetrical strip-shaped holes, four bolts are arranged to pass through the four strip-shaped holes and be fixedly connected with the cylinder seat of the first double-rod telescopic cylinder or the cylinder seat of the second double-rod telescopic cylinder, and the vertical plate of the mounting frame is fixedly connected with the longitudinal beam of the middle frame assembly.

[0009] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model sets the centering mechanism with adjustable width, and the carton of cigarettes is centered and pressed after entering a section, on the one hand, the centering requirement of different cartons of cigarettes can be met, the equipment cost is reduced, and the damage of the carton of cigarettes to the cigarettes inside is avoided, on the other hand, after the width is adjustable, the carton of cigarettes is more beneficial to directional stable movement under the action of the box pushing mechanism after the elastic pressing of the cylinder, the cutting of the middle seam adhesive tape in the carton of cigarettes is more stable, the cutting stability is improved, and the cutting is more thorough. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a perspective structural schematic view of the middle seam opening device;

[0011] Figure 2 is another perspective structural schematic view of the middle seam opening device;

[0012] Figure 3 is a front view structural schematic view of the middle seam opening device;

[0013] Figure 4 is Figure 3 is a middle A-A sectional view structural schematic view;

[0014] Figure 5 is Figure 3 is a middle C-C sectional view structural schematic view;

[0015] Figure 6 is a right centering rod mounting perspective structural schematic view;

[0016] Figure 7 is a right centering rod mounting structure bottom view structural schematic view;

[0017] Figure 8 is a left side pressing cutting mechanism perspective structural schematic view of the middle seam opening device;

[0018] Figure 9 This is a three-dimensional structural diagram of the left-side pressing and cutting mechanism of the center seam opening device from another perspective;

[0019] Figure 10 This is a schematic diagram of the right side of the pressing and cutting mechanism on the left side of the center seam opening device;

[0020] Figure 11 This is a front view schematic diagram of the pressing and cutting mechanism on the left side of the center seam opening device;

[0021] Figure 12 This is a schematic diagram of the three-dimensional structure of the box-pushing mechanism;

[0022] Figure 13 This is a schematic diagram of the three-dimensional structure of the conveyor;

[0023] Figure 14 This is a schematic diagram of the three-dimensional structure of the blocker; Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1: As Figures 1-14 As shown, a tape center-cutting device for a box opener includes a width-adjustable centering mechanism 144, a left seam opening assembly 101, a right seam opening assembly 102, a conveyor 103, and a box-pushing mechanism 105. The left seam opening assembly 101 and the right seam opening assembly 102 are symmetrically installed on both sides of a central frame assembly 106. The conveyor 103 is installed in the middle of the bottom side of the central frame assembly 106. The box-pushing mechanism 105 is installed on the top of the central frame assembly 106. The width-adjustable centering mechanism 144 is installed in the central frame assembly. The components 106 are located on both sides below the left slit assembly 101 and the right slit assembly 102, and are used to center the conveyed cigarette box 145. They also include a parking device assembly 104 installed on the conveyor 103. The left and right slit assemblies cut the center seam tape on the left and right sides of the box body under the movement of the box pushing mechanism and the conveyor. The parking device assembly plays a longitudinal limiting role, and the width adjustable centering mechanism plays a left and right limiting role. After the limiting role is achieved, it is convenient for the left slit assembly 101 and the right slit assembly 102 to perform the movement positioning.

[0026] In order to simplify the structure, the width-adjustable centering mechanism 144 includes left and right centering rods 146 and 147 symmetrically arranged on both sides of the middle frame assembly 106, which are respectively fixedly connected to the cylinder rods of the first and second double-rod telescopic cylinders 148 and 149, and the cylinder bases of the first and second double-rod telescopic cylinders 148 and 149 are fixedly connected to the middle frame assembly 106 through a mounting bracket 150. The relative movement of the two centering rods pushed by the two double-rod telescopic cylinders can quickly center the carton of cigarettes, and the width-adjustable centering mechanism is sensitive, fast, stable and reliable in pushing, and the cylinder pressing is reliable.

[0027] In order to facilitate the installation of the centering rods, the cylinder rod ends of the first and second double-rod telescopic cylinders 148 and 149 are fixedly connected to a connecting plate 151, and the two connecting plates 151 are respectively fixedly connected to the left and right centering rods 146 and 147. The connecting plate is fixedly connected to the centering rod, which is convenient and fast to install.

[0028] In order to stably press the carton of cigarettes, the left and right centering rods 146 and 147 are both flat tubes with a length greater than that of the carton of cigarettes 145 and a height higher than that of the conveying drum arranged on the conveyor 103. The inlet and outlet ends of the left and right centering rods 146 and 147 are provided with inclined guide portions 138 on the side of the carton of cigarettes. The centering rod with a flat tube structure can stably press the carton of cigarettes, thereby ensuring more stable guiding during cutting, and the inclined guide portion facilitates the guiding.

[0029] In order to facilitate the installation of the double-rod telescopic cylinder and the adjustment of the position of the cylinder, the above-mentioned mounting bracket 150 is an inverted L-shaped structure, and four symmetric strip-shaped holes 152 are arranged on the horizontal plate thereof. Four bolts are respectively passed through the four strip-shaped holes 152 and fixedly connected to the cylinder bases of the first and second double-rod telescopic cylinders 148 and 149. The vertical plate of the mounting bracket 150 is fixedly connected to the longitudinal beam of the middle frame assembly 106. The L-shaped mounting bracket has a simple structure, stable support and low cost.

[0030] In the above description, reference is made to Figures 8-11The left and right slit assemblies 101 and 102 are arranged symmetrically relative to each other, and each includes slit blades 107 and a pressing wheel set 108. The slit blades 107 are fixedly connected to a blade holder 109 in a front-rear direction, and two pieces of the slit blades cut the adhesive tape, which makes the cutting more thorough and avoids the first blade from not cutting to the position due to the elasticity of the adhesive tape. The blade holder 109 has an L-shaped structure, and an upper surface of the blade holder 109 is provided with a horizontally inclined blade groove 127. The slit blades 107 are placed in the blade groove 127 and are pressed by a blade pressing plate 128. The bottom surface of the blade pressing plate 128 is provided with a boss having a width smaller than that of the blade groove 127, and the boss is pressed on the upper surface of the slit blade 107. The blade pressing plate 128 is fixedly connected to the blade holder 109 by screws. The blade fixing structure is convenient and fast to adjust the length of the blade. The pressing mode is stable and reliable. The blade is placed obliquely, which is convenient for cutting the adhesive tape in the middle. The outer end of the blade holder 109 is fixedly connected to an opening-middle-seam pressing plate 129. The opening-middle-seam pressing plate 129 is provided with a strip-shaped through hole 130, and the blade tip of the slit blade 107 extends out of the surface of the opening-middle-seam pressing plate 129. The opening-middle-seam pressing plate is convenient for pressing the adhesive tape and stable cutting during the cutting process, and plays a limiting role to avoid cutting too deep and damaging the inner cartons. The two ends of the opening-middle-seam pressing plate 129 are provided with outwardly bent portions, which are convenient for guiding during the pressing process and avoid being stuck in the box body 6. The blade holder 109 is telescopically connected to a middle connecting rod 111 in the middle of a parallelogram mechanism 110 by a blade telescopic mechanism. The pressing wheel set 108 is rotatably connected to a roller holder 112. The roller holder 112 is cantileveredly fixedly connected to a top connecting rod 114 at the top of the parallelogram mechanism 110 by a seat plate 113, and the roller holder 112 and the slit blade 107 are co-directional. The roller set can realize the rolling walking while pressing the box, which reduces the friction. The side connecting rods of the parallelogram mechanism 110 are hingedly connected to one end of a driving cylinder 115, and the other end of the driving cylinder 115 is hingedly connected to the middle frame assembly 106. The working principle is as follows: the driving cylinder is extended, the parallelogram mechanism swings, and then drives the roller set to press down. When the box top is pressed, the blade telescopic mechanism is controlled to extend the blade, the blade tip is clamped in the adhesive tape, and the middle cutting is completed under the pushing of the pushing mechanism. Under the comprehensive guiding effect of the roller set, the opening-middle-seam pressing plates on both sides, the rollers of the conveyor, and the width-adjustable centering mechanism, the cutting process is more stable, the cutting quality is better, and the cutting is more accurate. The parallelogram mechanism is linked to realize the pressing while the middle blade also realizes the accurate vertical middle positioning. The structure is greatly simplified. In order to reinforce the swing stability of the parallelogram mechanism 110, a second parallelogram mechanism 131 is connected in parallel on the outside of the parallelogram mechanism. The two hinge points of the top of the second parallelogram mechanism 131 are hingedly connected to the two side connecting rods of the parallelogram mechanism 110 by a hinge long shaft 132. The second parallelogram mechanism 131 swings with the parallelogram mechanism 110, and the swing is more stable under the auxiliary reinforcement of the second parallelogram mechanism 131.The pressing box is more stable, and the second parallelogram mechanism 131 is lower than the blade telescopic mechanism, avoiding interference during the telescopic process of the blade telescopic mechanism. The lower ends of the two side links of the parallelogram mechanism are hinged to the door-shaped main support, and the two lower ends of the door-shaped main support pass through the cross beam of the middle frame assembly 106 and are locked by two nuts, which can adjust the height. The two side links of the second parallelogram mechanism 131 are hinged to the auxiliary mounting plate, which is fixedly connected to one side of the door-shaped main support.

[0031] The above-mentioned blade telescopic mechanism includes a guide mounting plate 116, a blade guide shaft 117 and a telescopic cylinder 118. The guide mounting plate 116 is provided with a horizontal strip-shaped hole opposite the blade groove 127, which increases the extension adjustment range of the blade. The blade holder 109 is fixedly connected to the guide mounting plate 116. The blade guide shaft 117 is fixedly connected to the two sides of the guide mounting plate 116 at the same end. The blade guide shaft 117 is connected to the middle link 111 through two linear bearings 119. The cylinder rod of the telescopic cylinder 118 is fixedly connected to the connecting lug on the top side of the guide mounting plate 116. The cylinder base of the telescopic cylinder 118 is fixedly connected to the side of the middle link 111 through an L-shaped cylinder holder 133. The telescopic cylinder pushes the guide mounting plate to move, thereby realizing the position movement of the blade holder and achieving the clamping of the middle slot blade into the side middle slot adhesive tape of the box. The linear bearing guide is accurate and stable and reliable.

[0032] Referring to Figure 12 The above-mentioned pushing box mechanism 105 includes a push plate 120 and a rodless cylinder assembly 121. The push plate 120 is connected to the bottom of the sliding block of the rodless cylinder assembly 121 through a sliding plate assembly 122. The rear side of the push plate 120 is fixedly connected with a top plate through two muscle plates. The push plate 120 is vertically suspended and hinged to the connecting lug 124 arranged at the bottom of the sliding plate assembly 122. The front side of the connecting lug 124 is provided with a vertical baffle 125. The rear end surface of the vertical baffle 125 is provided with an elastic protection layer 126 abutting against the top plate at the rear side of the push plate 120. The vertical baffle 125 rotates freely around the hinge shaft arranged thereon without interference with the vertical baffle. The elastic protection layer 126 can play a role in shock absorption and noise reduction. The rodless cylinder assembly 121 is installed on the top of the middle frame assembly 106 through the fixed hangers 123 at both ends. When it is necessary to push the box into the conveyor, the push plate automatically rotates inward during the pushing process. When the box moves to the position of the baffle of the parking device assembly, the push plate automatically falls. The two sides are cut by the middle slot, the box is pressed, and the blade is inserted into the middle slot adhesive tape. The push plate is controlled to act on the rodless cylinder to push the box backward. Under the pressing action of the middle slot blade and the roller group, the middle slot is cut smoothly, and the box is pushed into the next station after the middle slot is cut.

[0033] Referring to Figures 13-14As shown, the conveyor 103 includes a plurality of rollers 134, a conveyor frame 135 and a conveyor motor 136, the plurality of rollers 134 are uniformly spaced and rotatably connected to the top of the conveyor frame 135, two adjacent rollers 134 are connected and driven by a plurality of V-belts 137, one of the rollers 134 is connected to the motor shaft of the conveyor motor 136 by a plurality of V-belts, the conveyor motor 136 is installed in the conveyor frame 135, and all the rollers are driven to rotate in one direction by the driving of the conveyor motor 136. The parking assembly 104 includes an L-shaped baffle 139 and a limiting telescopic cylinder 140, the baffle 139 is fixedly connected to the upper ends of two parking guide rods 141, the two parking guide rods 141 are connected to a cross beam 143 through parking linear bearings 142, the cross beam 143 is fixedly connected to the conveyor frame 135, the cylinder rod of the limiting telescopic cylinder 140 is fixedly connected to the middle of the baffle 139, the two parking guide rods 141 are arranged on two sides, the cylinder base of the limiting telescopic cylinder 140 is fixedly connected to the cross beam 143, the baffle is controlled to extend out of the rollers 134 or retract by the action of the limiting telescopic cylinder, thereby realizing the parking and opening of the box body, and the baffle is L-shaped in cross section and has good rigidity.

[0034] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application, therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A tape center slit cutting apparatus for a case unpacking machine, characterized by, The width-adjustable centering mechanism (144), the left slotted assembly (101), the right slotted assembly (102), the conveyor (103) and the box pushing mechanism (105) are symmetrically arranged on both sides of the middle frame assembly (106), the conveyor (103) is arranged on the bottom side of the middle frame assembly (106), the box pushing mechanism (105) is arranged on the top of the middle frame assembly (106), and the width-adjustable centering mechanism (144) is arranged on both sides of the middle frame assembly (106) and below the left slotted assembly (101) and the right slotted assembly (102) to center the conveyed cigarette box (145).

2. An adhesive tape slit cutting apparatus for a case unpacking machine according to claim 1, wherein The width-adjustable centering mechanism (144) comprises the left centering rod (146) and the right centering rod (147) symmetrically arranged on both sides of the middle frame assembly (106), the left centering rod (146) and the right centering rod (147) are fixedly connected to the cylinder rods of the first double-rod telescopic cylinder (148) and the second double-rod telescopic cylinder (149) respectively, and the cylinder bases of the first double-rod telescopic cylinder (148) and the second double-rod telescopic cylinder (149) are fixedly connected to the middle frame assembly (106) through the mounting bracket (150).

3. An adhesive tape slit cutting apparatus for a case unpacking machine according to claim 2, wherein The cylinder rod end of the first double-rod telescopic cylinder (148) and the cylinder rod end of the second double-rod telescopic cylinder (149) are fixedly connected to a connecting plate (151), and the two connecting plates (151) are fixedly connected to the left centering rod (146) and the right centering rod (147) respectively.

4. The tape-in-slot cutting apparatus for a carton opener of claim 2, wherein, The left centering rod (146) and the right centering rod (147) are both flat tubes, the length of which is greater than the length of the cigarette box (145), and the height of which is higher than the conveying roller arranged on the conveyor (103), and the inlet and outlet ends of the left centering rod (146) and the right centering rod (147) are provided with inclined guide portions (138) on the side of the cigarette box.

5. The tape-in-slot cutting apparatus for a carton opener of claim 2, wherein, The mounting bracket (150) is an inverted L-shaped structure, the horizontal plate of which is provided with four symmetric strip-shaped holes (152), four bolts are used to pass through the four strip-shaped holes (152) and are fixedly connected to the cylinder base of the first double-rod telescopic cylinder (148) or the cylinder base of the second double-rod telescopic cylinder (149), and the vertical plate of the mounting bracket (150) is fixedly connected to the longitudinal beam of the middle frame assembly (106).

6. The tape-in-slot cutting apparatus for a carton opener of claim 1, wherein, The left and right slitting assemblies (101, 102) each include a slitting blade (107) and a pressing wheel set (108), the slitting blade (107) is fixedly connected on a blade holder (109) in two pieces, the blade holder (109) is connected on a middle link (111) of a parallelogram mechanism (110) through a blade telescopic mechanism, the pressing wheel set (108) is rotatably connected on a roller holder (112), the roller holder (112) is fixedly connected on a top link (114) of the parallelogram mechanism (110) through a seat plate (113) and is kept in the same direction with the slitting blade (107), the side links of the parallelogram mechanism (110) are hingedly connected to one end of a driving cylinder (115), the other end of the driving cylinder (115) is hingedly connected to the middle frame assembly (106).

7. An adhesive tape slit cutting apparatus for a case unpacking machine according to claim 6, wherein The blade telescopic mechanism includes a guide mounting plate (116), blade guide shafts (117) and a telescopic cylinder (118), the blade holder (109) is fixedly connected on the guide mounting plate (116), the blade guide shafts (117) are fixedly connected on the two sides of the guide mounting plate (116) in two pieces, the blade guide shafts (117) are connected to the middle link (111) through two linear bearings (119), the cylinder rod of the telescopic cylinder (118) is fixedly connected on the guide mounting plate (116), and the cylinder base of the telescopic cylinder (118) is fixedly connected on the middle link (111).

8. The tape-in-slot cutting apparatus for a carton opener of claim 1, wherein, The blade holder (109) is of an L-shaped structure, an upper plane is provided with a horizontally inclined blade groove (127), the slitting blade (107) is placed in the blade groove (127) and is pressed by a blade pressing plate (128), the bottom surface of the blade pressing plate (128) is provided with a boss with a smaller width than the blade groove (127), the boss is pressed on the upper surface of the slitting blade (107), the blade pressing plate (128) is fixedly connected on the blade holder (109) by screws, and the outer end of the blade holder (109) is fixedly connected with an open middle slit pressing plate (129), the open middle slit pressing plate (129) is provided with a strip-shaped through hole (130) through which the blade tip of the slitting blade (107) protrudes out of the surface of the open middle slit pressing plate (129).

9. The tape-in-slot cutting apparatus for a carton opener of claim 1, wherein, The pushing box mechanism (105) includes a push plate (120) and a rodless cylinder assembly (121), the push plate (120) is connected to the bottom of the sliding block of the rodless cylinder assembly (121) through a sliding plate assembly (122), the push plate (120) is vertically and dependently hinged on a connecting lug (124) arranged at the bottom of the sliding plate assembly (122), a vertical baffle (125) is arranged on the front side of the connecting lug (124), and the rodless cylinder assembly (121) is installed on the top of the middle frame assembly (106) through a fixed hanger (123).

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