A box sealer

Abstract

This utility model relates to the field of tape cutting technology, and more particularly to a box sealer, comprising a base plate, a sleeve, a side cover plate, a pressure roller, a cutting blade, and a guide roller; the sleeve is disposed on the base plate, the base plate is connected to the side cover plate via a rotating shaft, and the pressure roller is sleeved on the rotating shaft; a cutting blade is disposed above the pressure roller, and the cutting blade is fixedly connected to the side cover plate; opposing guide rollers are disposed on the base plate and the side cover plate, and the guide rollers are located between the sleeve and the pressure roller; the invention is characterized by further comprising an elastic component, which is disposed above the guide roller; the elastic component includes a torsion spring and a pressing member, the torsion spring being disposed above the guide roller, one end of the torsion spring having a pressing member located between the pressure roller and the guide roller, and the other end being connected to or abutting against the guide roller; the torsion spring can drive the pressing member to abut against the guide roller. This utility model can effectively improve the efficiency of multiple box sealing operations and eliminates the need to spend time re-lifting the tape head.

Description

Technical Field

[0001] This utility model relates to the field of tape cutting technology, and in particular to a box sealer. Background Technology

[0002] Transparent carton sealers are frequently used for sealing packaging cartons. They typically include a tape sleeve, a base, guide rollers, pressure rollers, and a cutting blade.

[0003] In existing carton sealers, after the cutting blade presses down on the tape, the tape easily detaches from the guide roller and falls back onto the rubber ring. When it needs to be reused, the tape end needs to be lifted again. First, this reduces the efficiency of carton sealing; second, lifting the tape end back onto the rubber ring is troublesome and can easily damage the flatness of the tape end. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides a box sealer that can effectively improve the efficiency of multiple box sealing operations and eliminates the need to spend time lifting the tape head again.

[0005] To address the aforementioned problems, this utility model proposes a box sealer, comprising a base plate, a sleeve, a side cover plate, a pressure roller, a cutting blade, and a guide roller; the sleeve is disposed on the base plate, the base plate is connected to the side cover plate via a rotating shaft, and the pressure roller is sleeved on the rotating shaft; the cutting blade is disposed above the pressure roller and is fixedly connected to the side cover plate; opposing guide rollers are disposed on the base plate and the side cover plate, and the guide roller is located between the sleeve and the pressure roller; it also includes an elastic component disposed above the guide roller;

[0006] The elastic component includes a torsion spring and a pressing member. The torsion spring is located above the guide roller. One end of the torsion spring is provided with the pressing member, and the pressing member is located between the pressure roller and the guide roller. The other end is connected to or abuts against the guide roller. The torsion spring can drive the pressing member to abut against the guide roller.

[0007] As an improvement to the above technical solution, a connecting post is provided between the side cover plate and the base plate, and the torsion spring is sleeved on the connecting post.

[0008] As an improvement to the above technical solution, both ends of the connecting column are provided with torsion springs, and the two torsion springs are connected by a pressing member. The end of the torsion spring away from the pressing member is bent toward the guide roller to form a fixing part, and the fixing part abuts against the guide roller.

[0009] As an improvement to the above technical solution, the torsion spring and the pressing member are an integral structure.

[0010] As an improvement to the above technical solution, the bottom of the guide roller is provided with an extension plate extending toward the pressure roller.

[0011] As an improvement to the above technical solution, the end of the extension plate near the pressure roller is bent toward the pressure roller to form a bent portion.

[0012] As an improvement to the above technical solution, a protective cover is also included, which is disposed at the front end of the side cover plate and rotatably connected to both ends of the rotating shaft;

[0013] The protective cover is also provided with a reset torsion spring. One end of the reset torsion spring abuts or connects to the protective cover, and the other end is connected to a reset pressing member. The reset pressing member abuts or connects to the side cover plate.

[0014] As an improvement to the above technical solution, the protective cover is provided with a mounting shaft, and the two ends of the mounting shaft are fitted with the reset torsion springs, and the reset pressing member is connected between the ends of the two reset torsion springs.

[0015] As an improvement to the above technical solution, the front end of the side cover plate is provided with a blade mounting groove, one inner wall of the blade mounting groove is provided with a first grid groove, and the other inner wall is provided with a second grid groove, the first grid groove and the second grid groove are staggered; the cutting blade is inserted into the blade mounting groove and abuts against the inner walls of both sides of the blade mounting groove.

[0016] As an improvement to the above technical solution, both the base plate and the side cover plate are provided with limiting posts in front of the blade mounting groove, and the bottom of the cutting blade is provided with a limiting protrusion corresponding to the position of the limiting post. The limiting protrusion is an arc-shaped protrusion.

[0017] The following are the beneficial effects of implementing this utility model:

[0018] Compared to existing technologies, this invention features an elastic component above the guide roller. This elastic component includes a torsion spring and a pressing member. The torsion spring is positioned above the guide roller, with the pressing member attached to one end, located between the pressure roller and the guide roller. The other end is connected to or abuts against the guide roller. The torsion spring drives the pressing member to abut against the guide roller. After the tape is cut by the sealing blade, the initial section of the tape is confined between the pressure roller and the guide roller under the pressure of the pressing member. The pressing member also presses the tape against the surface of the guide roller, preventing the initial section of the tape from easily falling off. This solves the problem of the initial section easily falling back onto the rubber ring, improving the efficiency of multiple sealing operations. Attached Figure Description

[0019] Figure 1 This is a perspective view of a box sealer according to an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of a box sealer according to an embodiment of the present invention;

[0021] Figure 3 This is a perspective view of another embodiment of the present invention;

[0022] Figure 4 yes Figure 3 Enlarged view of point A in the image. Detailed Implementation

[0023] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0024] See Figures 1 to 4 As shown, this utility model embodiment provides a box sealer, including a base plate 1, a sleeve 2, a side cover plate 3, a pressure roller 4, a cutting blade 5, and a guide roller 6; the sleeve 2 is disposed on the base plate 1, the base plate 1 is connected to the side cover plate 3 through a rotating shaft, and the pressure roller 4 is sleeved on the rotating shaft; the cutting blade 5 is disposed above the pressure roller 4, and the cutting blade 5 is fixedly connected to the side cover plate 3; the base plate 1 and the side cover plate 3 are provided with opposing guide rollers 6, and the guide roller 6 is located between the sleeve 2 and the pressure roller 4.

[0025] This utility model embodiment improves the internal structure of the box sealer to solve the problem that the initial section of the tape tends to fall back onto the rubber ring after sealing.

[0026] Specifically, it also includes an elastic component 7, which is disposed above the guide roller 6;

[0027] The elastic component 7 includes a torsion spring 71 and a pressing member 72. The torsion spring 71 is disposed above the guide roller 6. One end of the torsion spring 71 is provided with the pressing member 72, and the pressing member 72 is located between the pressure roller 4 and the guide roller 6. The other end is connected to or abuts against the guide roller 6. The torsion spring 71 can drive the pressing member 72 to abut against the guide roller 6.

[0028] Compared to existing technologies, this invention features an elastic component 7 positioned above the guide roller 6. This elastic component 7 includes a torsion spring 71 and a pressing member 72. The torsion spring 71 is positioned above the guide roller 6, with the pressing member 72 attached to one end of the torsion spring 71. The pressing member 72 is located between the pressure roller 4 and the guide roller 6, while the other end connects to or abuts against the guide roller 6. The torsion spring 71 drives the pressing member 72 to abut against the guide roller 6. After the tape is cut by the sealing blade, the initial section of the tape is confined between the pressure roller 4 and the guide roller 6 under the pressure of the pressing member 72. The pressing member 72 presses the tape against the surface of the guide roller 6, preventing the initial section of the tape from easily falling off the guide roller 6. This solves the previous problem of the initial section easily falling back onto the rubber ring, improving the efficiency of multiple sealing operations.

[0029] To simplify the installation of the elastic components and improve reliability, preferably, a connecting post 74 is provided between the side cover plate 3 and the base plate 1, and the torsion spring 71 is sleeved on the connecting post 74.

[0030] More preferably, both ends of the connecting column 74 are provided with torsion springs 71, and the pressing member 72 is connected between the two torsion springs 71. The end of the torsion spring 71 away from the pressing member 72 is bent toward the guide roller 6 to form a fixing part 73, and the fixing part 73 abuts against the guide roller 6.

[0031] Torsion springs 71 are provided at both ends of the connecting post 74, and a pressing member 72 is connected between the torsion springs 71. The torsion springs 71 apply force to both ends of the pressing member 72, so that the pressing member 72 can apply force evenly to the starting section of the rubber ring.

[0032] Preferably, the torsion spring 71 and the pressing member 72 are an integral structure. This integral structure ensures structural strength.

[0033] Preferably, the bottom of the guide roller 6 is provided with an extension plate 61 extending toward the pressure roller 4. The extension plate 61 provides a resting position for the tape, preventing the tape from sticking to the guide roller. More preferably, the end of the extension plate 61 near the pressure roller 4 is bent toward the pressure roller to form a bent portion.

[0034] Because the cutting blade 5 is quite sharp, it poses a certain degree of danger. Preferably, it also includes a protective cover 8, which is located at the front end of the side cover plate 3 and is rotatably connected to both ends of the rotating shaft;

[0035] The protective cover 8 is also provided with a reset torsion spring 81. One end of the reset torsion spring 81 abuts or is connected to the protective cover 8, and the other end is connected to a reset pressing member 82. The reset pressing member 82 abuts or is connected to the side cover plate 3.

[0036] With the cooperation of the reset torsion spring 71 and the reset pressing member 72, when the cutting blade 5 is not in use, the protective cover 8 automatically covers the front of the cutting blade 5 to prevent the cutting blade 5 from being exposed.

[0037] More preferably, the protective cover 8 is provided with a mounting shaft, and the two ends of the mounting shaft are fitted with the reset torsion spring 81, and the reset pressing member 82 is connected between the ends of the two reset torsion springs 81.

[0038] To simplify the installation of the cutting blade 5, preferably, the front end of the side cover plate 3 is provided with a blade mounting groove 31, one inner wall of the blade mounting groove 31 is provided with a first grid groove 32, and the other inner wall is provided with a second grid groove 33, the first grid groove 32 and the second grid groove 33 are staggered; the cutting blade 5 is inserted into the blade mounting groove 31 and abuts against the inner walls of both sides of the blade mounting groove 31.

[0039] When installing the cutting blade 5, a tool is used to insert the cutting blade into the blade mounting slot. Because the first grid groove 32 and the second grid groove 33 in the blade mounting slot are staggered, the clamping effect on the blade is enhanced.

[0040] The cutting blade 5 can be a commonly available blade used in box sealers with a bending structure. Preferably, both the base plate 1 and the side cover plate 3 are provided with limiting posts 9 in front of the blade mounting groove 31, and the bottom of the cutting blade 5 is provided with a limiting protrusion 51 corresponding to the position of the limiting post 9. The limiting protrusion 51 is an arc-shaped protrusion.

[0041] Due to the cooperation of the limiting post 9 and the limiting protrusion 51, the cutting blade 5 can be stably positioned and installed in the blade mounting groove 31. In addition, the sides of the limiting post 9 and the limiting protrusion 51 are both curved, and the main body of the sealing device is made of plastic. When the cutting blade 5 is installed, the limiting protrusion 51 and the limiting post 9 abut against each other, causing the sealing device to undergo a certain elastic deformation, allowing the cutting blade 5 to be smoothly inserted into the blade mounting groove 31.

[0042] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A box sealer, comprising a base plate, a sleeve, a side cover plate, a pressure roller, a cutting blade, and a guide roller; the sleeve is disposed on the base plate, the base plate is connected to the side cover plate via a rotating shaft, and the pressure roller is sleeved on the rotating shaft; the cutting blade is disposed above the pressure roller and is fixedly connected to the side cover plate; the base plate and the side cover plate are provided with opposing guide rollers, and the guide rollers are located between the sleeve and the pressure roller; characterized in that, It also includes an elastic component, which is disposed above the guide roller; The elastic component includes a torsion spring and a pressing member. The torsion spring is located above the guide roller. One end of the torsion spring is provided with the pressing member, and the pressing member is located between the pressure roller and the guide roller. The other end is connected to or abuts against the guide roller. The torsion spring can drive the pressing member to abut against the guide roller.

2. The box sealer as described in claim 1, characterized in that, A connecting post is provided between the side cover plate and the base plate, and the torsion spring is sleeved on the connecting post.

3. The box sealer as described in claim 2, characterized in that, Both ends of the connecting column are provided with torsion springs, and the two torsion springs are connected by the abutting member. The end of the torsion spring away from the abutting member is bent toward the guide roller to form a fixing part, and the fixing part abuts against the guide roller.

4. The box sealer as described in any one of claims 1-3, characterized in that, The torsion spring and the pressing component are an integral structure.

5. The box sealer as described in claim 1, characterized in that, The bottom of the guide roller is provided with an extension plate that extends toward the pressure roller.

6. The box sealer as described in claim 5, characterized in that, The end of the extension plate near the pressure roller is bent toward the pressure roller to form a bent section.

7. The box sealer as described in claim 1, characterized in that, It also includes a protective cover, which is located at the front end of the side cover plate and is rotatably connected to both ends of the rotating shaft; The protective cover is also provided with a reset torsion spring. One end of the reset torsion spring abuts or connects to the protective cover, and the other end is connected to a reset pressing member. The reset pressing member abuts or connects to the side cover plate.

8. The box sealer as described in claim 7, characterized in that, The protective cover is provided with a mounting shaft, and the two ends of the mounting shaft are fitted with the reset torsion springs. The reset pressing member is connected between the ends of the two reset torsion springs.

9. The box sealer as claimed in claim 1, characterized in that, The front end of the side cover plate is provided with a blade mounting groove. One inner wall of the blade mounting groove is provided with a first grid groove, and the other inner wall is provided with a second grid groove. The first grid groove and the second grid groove are arranged alternately. The cutting blade is inserted into the blade mounting groove and abuts against the inner walls of both sides of the blade mounting groove.

10. The box sealer as claimed in claim 9, characterized in that, The base plate and the side cover plate are both provided with limiting posts in front of the blade mounting groove. The bottom of the cutting blade is provided with a limiting protrusion corresponding to the position of the limiting post. The limiting protrusion is an arc-shaped protrusion.

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