A double-sided heat-sealable bopp film

Abstract

This invention provides a double-sided heat-sealable BOPP film, relating to the field of BOPP film technology. It includes: a BOPP film body and a rotating sleeve. The BOPP film body is wound and installed on the rotating sleeve. An installation roller is rotatably installed inside the rotating sleeve. Support components are provided at both ends of the installation roller. The BOPP film body has a bag opening and connecting edge around its perimeter, and a reinforcing strip at the bag opening ensures greater stability of the BOPP film body during opening and closing, preventing wrinkles during use. Furthermore, a stretching break edge is provided between the two BOPP film bodies, allowing for stretching and cutting, effectively preventing tearing at the edges of the BOPP film body under strong tension. This solves the problems of existing double-sided heat-sealable BOPP films easily shifting and loosening during stretching, causing wrinkles at the edges, and easily tearing at the edges under large stretching forces. Additionally, the stretching and printing processes of the BOPP film need to be performed in separate steps, resulting in poor efficiency.

Description

Technical Field

[0001] This invention relates to the field of BOPP film technology, and in particular to a double-sided heat-sealable BOPP film. Background Technology

[0002] BOPP film is a very important flexible packaging material. BOPP film is colorless, odorless, tasteless, and non-toxic, and possesses high tensile strength, impact strength, rigidity, toughness, and good transparency. Double-sided BOPP heat-sealable film refers to film whose two sides can be heat-sealed; it is generally called double-sided heat-sealable BOPP film.

[0003] Existing double-sided heat-sealable BOPP film is prone to shifting and loosening during stretching, causing wrinkles at the edges. Moreover, when the stretching force is large, the edges are prone to tearing. In addition, BOPP film requires manual printing of information during use, which is cumbersome, laborious and inconvenient. As a result, the stretching and printing of BOPP film must be carried out in separate steps, leading to poor efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a double-sided heat-sealable BOPP film to solve the problems that existing double-sided heat-sealable BOPP films are prone to displacement and loosening during the stretching process, resulting in wrinkles at the edges. Moreover, when the stretching force is large, the edges are prone to tearing. In addition, the stretching and printing processes of BOPP film need to be carried out in separate steps, resulting in poor efficiency.

[0005] This invention provides a double-sided heat-sealable BOPP film, specifically comprising: a BOPP film body and a rotating sleeve, wherein the BOPP film body is wound and installed on the rotating sleeve; an installation roller is rotatably installed inside the rotating sleeve; support components are provided at both ends of the installation roller, and the two support components are symmetrically distributed; a positioning component is provided on the support component; a first telescopic rod and a second telescopic rod are provided at both ends of the installation roller, and the first telescopic rod and the second telescopic rod are located on both sides of the support component.

[0006] Furthermore, the BOPP film body has a bag opening at the left end, and connecting edges at the front, back or right ends of the BOPP film body. The BOPP film bodies are evenly distributed in a linear array, and there is a stretching break edge between two BOPP film bodies, and the stretching break edge is connected to the connecting edge. There is a reinforcing strip inside the bag opening, and an information strip at the top of the bag opening.

[0007] Furthermore, the mounting roller has four limiting grooves at both its left and right ends, and the four limiting grooves are distributed in a circular array. The mounting roller has mounting rings at both its left and right ends, and the inner circumference of the mounting rings has four limiting blocks. The mounting rings are engaged with the limiting grooves through the limiting blocks, and the support components, the first telescopic rod and the second telescopic rod are all mounted on the mounting rings.

[0008] Furthermore, the support assembly includes a support base, a connecting slide tube, a limiting round rod, and a tension spring a. The top of the support base has two connecting slide tubes and three limiting round rods, which are vertically distributed with the connecting slide tubes. The limiting round rods are fitted with tension springs a.

[0009] Furthermore, the positioning component includes a connecting frame, a sliding rod, a mounting frame, and a rotating wheel. The bottom of the connecting frame is provided with two sliding rods, which are distributed vertically and parallelly. A mounting frame is provided on one side of the connecting frame, and a rotating wheel is rotatably mounted on the mounting frame via a pin.

[0010] Furthermore, when the positioning component and the support component are connected, the slide rod slides into the connecting slide tube, and the limiting round rod slides through the connecting frame. The two ends of the tension spring a are respectively connected to the connecting frame and the support seat, and the rotating wheel is in rolling connection with the BOPP film body.

[0011] Furthermore, connecting blocks are provided at the ends of the first telescopic rods at both locations. A tension spring b is fitted on the first telescopic rod, and the two ends of the tension spring b are respectively connected to the connecting blocks and the bottom tube of the first telescopic rod. An arc-shaped baffle is provided between the left and right connecting blocks, and the arc-shaped baffle is in contact with the BOPP film body.

[0012] Furthermore, rotating seats are provided at the ends of the two second telescopic rods, and tension springs c are fitted on the second telescopic rods. The two ends of tension springs c are respectively connected to the rotating seats and the bottom tubes of the second telescopic rods. A connecting rod is rotatably installed between the left and right rotating seats through bearings, and an information printing component is provided on the connecting rod.

[0013] Furthermore, the information printing assembly includes a rotating frame, support rods, pressing plates, information printing strips, and heaters. The rotating frame is rotatably mounted on the connecting rotating rod. The rotating frame has four support rods arranged in a circular array. The ends of the support rods are provided with pressing plates, which have an arc-shaped structure. An information printing strip is located at the middle position of the outer side of the pressing plate, and the pressing plate is in contact with the BOPP film body. A heater is provided on one side of the rotating frame.

[0014] Beneficial effects

[0015] 1. Because the BOPP film body has a bag opening and connecting edge around its perimeter, and is reinforced with a strip at the bag opening, the BOPP film body can be more stable when being unfolded and unfolded, preventing wrinkles from forming during use. In addition, there is a stretch break edge between the two BOPP film bodies, which can be stretched and cut off at the stretch break edge, effectively preventing tearing of the BOPP film body edge when pulled strongly.

[0016] 2. Because it is equipped with positioning and support components, it is connected to the left and right edges of the BOPP film body by rotating wheels and using the rebound pulling action of the tension spring a on the limiting round rod to press the left and right edges of the BOPP film body, so as to prevent the BOPP film body from shifting and ensure that it is more stable when stretched and used.

[0017] 3. Due to the presence of an arc-shaped baffle that contacts the OPP film body, and the rebound pulling action of the tension spring b mounted on the first telescopic rod, the BOPP film body is tightened through the arc-shaped baffle, preventing the BOPP film body from loosening after use and improving overall stability.

[0018] 4. Because it is equipped with an information printing component, and the information printing strip is set with the usage date and anti-counterfeiting mark, the information printing strip is heated by a heater. With the rotation of the rotating frame and the BOPP film body at the same time, the information can be printed on the BOPP film body. This invention combines the rotation of the BOPP film body and the printing action of the information printing strip in one step through mechanical transmission, eliminating the trouble of step-by-step operation and effectively improving the efficiency of use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the overall axial view structure of an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the BOPP film body and the mounting roller in a separated state according to an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the BOPP membrane main structure according to an embodiment of the present invention.

[0025] Figure 4 This is an embodiment of the present invention. Figure 3 Enlarged structural diagram of section A in the middle.

[0026] Figure 5 This is a schematic diagram of the installation roller, support assembly, positioning assembly, first telescopic rod, second telescopic rod, and information printing assembly according to an embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the support component, positioning component, first telescopic rod, and second telescopic rod according to an embodiment of the present invention.

[0028] Figure 7 This is an embodiment of the present invention. Figure 6 A schematic diagram of the structure in the explosive state.

[0029] Figure 8 This is a schematic diagram of the information printing component structure according to an embodiment of the present invention.

[0030] List of reference numerals

[0031] 1. BOPP film body; 101. Bag opening; 102. Connecting edge; 103. Tension cut edge; 104. Reinforcing strip; 105. Information strip; 2. Mounting roller; 201. Limiting groove; 202. Mounting ring; 203. Limiting block; 3. Support assembly; 301. Support base; 302. Connecting slide tube; 303. Limiting round rod; 304. Tension spring a; 4. Positioning assembly; 401. Connecting frame; 402. Slide rod ; 403, Mounting bracket; 404, Rotating wheel; 5, First telescopic rod; 501, Connecting block; 502, Tension spring b; 503, Arc-shaped baffle; 6, Rotating sleeve; 7, Second telescopic rod; 701, Rotating seat; 702, Tension spring c; 703, Connecting rotating rod; 8, Information printing assembly; 801, Rotating frame; 802, Support rod; 803, Pressing plate; 804, Information printing strip; 805, Heater. Detailed Implementation

[0032] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0033] Example: Please refer to Figures 1 to 8 As shown:

[0034] This invention provides a double-sided heat-sealable BOPP film, comprising: a BOPP film body 1 and a rotating sleeve 6, wherein the BOPP film body 1 is wound and installed on the rotating sleeve 6; an installation roller 2 is rotatably installed inside the rotating sleeve 6; support components 3 are provided at both ends of the installation roller 2, and the two support components 3 are symmetrically distributed; a positioning component 4 is provided on the support component 3; a first telescopic rod 5 and a second telescopic rod 7 are provided at both ends of the installation roller 2, and the first telescopic rod 5 and the second telescopic rod 7 are located on both sides of the support component 3;

[0035] The mounting roller 2 has four limiting grooves 201 at both ends, and the four limiting grooves 201 are arranged in a ring array. The mounting roller 2 has mounting rings 202 at both ends, and the inner circumferential surface of the mounting rings 202 has four limiting blocks 203. The mounting rings 202 are engaged with the limiting grooves 201 through the limiting blocks 203. The support component 3, the first telescopic rod 5 and the second telescopic rod 7 are all set on the mounting rings 202.

[0036] The BOPP film body 1 has a bag opening 101 on the left end and connecting edges 102 on the front, back or right ends. The BOPP film bodies 1 are evenly distributed in a linear array, and a tension break edge 103 is provided between two BOPP film bodies 1. The tension break edge 103 is connected to the connecting edge 102. A reinforcing strip 104 is provided inside the bag opening 101, and an information strip 105 is provided at the top of the bag opening 101. Because the BOPP film body 1 has a bag opening 101 and connecting edges 102 around its perimeter, and is equipped with reinforcing strips 104, the BOPP film body 1 can be more stable when it is opened and closed, and wrinkles can be avoided during use. In addition, the tension break edge 103 is provided between two BOPP film bodies 1, which can be stretched and cut off at the tension break edge 103, effectively preventing the edges of the BOPP film body 1 from tearing when pulled strongly.

[0037] The support assembly 3 includes a support base 301, a connecting slide tube 302, a limiting round rod 303, and a tension spring a304. The support base 301 has two connecting slide tubes 302 on its top and three limiting round rods 303 on its top. The limiting round rods 303 and the connecting slide tubes 302 are distributed vertically, and the tension spring a304 is fitted on the limiting round rods 303.

[0038] The positioning component 4 includes a connecting frame 401, a sliding rod 402, a mounting frame 403, and a rotating wheel 404. The bottom of the connecting frame 401 is provided with two sliding rods 402, and the two sliding rods 402 are distributed in a vertical parallel manner. The mounting frame 403 is provided on one side of the connecting frame 401, and the rotating wheel 404 is rotatably mounted on the mounting frame 403 via a pin.

[0039] When the positioning component 4 and the support component 3 are connected, the slide rod 402 slides into the connecting slide tube 302, and the limiting round rod 303 slides through the connecting frame 401. The two ends of the tension spring a304 are connected to the connecting frame 401 and the support seat 301 respectively. The rotating wheel 404 is in rolling connection with the BOPP film body 1. Due to the positioning component 4 and the support component 3, the rotating wheel 404 is in rolling connection with the left and right edges of the BOPP film body 1. With the rebound pulling effect of the tension spring a304 on the limiting round rod 303, the left and right edges of the BOPP film body 1 can be pressed to prevent the BOPP film body 1 from shifting and to ensure that it is more stable when stretched.

[0040] The two ends of the first telescopic rods 5 are provided with connecting blocks 501. Tension springs b502 are installed on the first telescopic rods 5, and the two ends of the tension springs b502 are connected to the connecting blocks 501 and the bottom tube of the first telescopic rods 5, respectively. An arc-shaped baffle 503 is provided between the left and right connecting blocks 501. Due to the presence of the arc-shaped baffle 503 and its contact with the BOPP film body 1, and the rebound pulling action of the tension springs b502 installed on the first telescopic rods 5, the BOPP film body 1 is tightened by the arc-shaped baffle 503 to prevent the BOPP film body 1 from loosening after use and to improve the overall stability.

[0041] Among them, the ends of the two second telescopic rods 7 are provided with rotating seats 701, and tension springs c702 are fitted on the second telescopic rods 7. The two ends of the tension springs c702 are respectively connected to the rotating seats 701 and the bottom tube of the second telescopic rods 7. A connecting rod 703 is rotatably installed between the left and right rotating seats 701 through a bearing, and an information printing component 8 is provided on the connecting rod 703.

[0042] The information printing assembly 8 includes a rotating frame 801, support rods 802, a pressing plate 803, an information printing strip 804, and a heater 805. The rotating frame 801 is rotatably mounted on a connecting rotating rod 703. The rotating frame 801 has four support rods 802 arranged in a circular array. Each support rod 802 has a pressing plate 803 at its end. The pressing plate 803 has an arc-shaped structure, and the information printing strip 804 is located at the outer center of the pressing plate 803. The pressing plate 803 contacts the BOPP film body 1. A heater 805 is provided on one side of the rotating frame 801. Since an information printing component 8 is provided and the information printing strip 804 is provided with the usage date and anti-counterfeiting mark, the information printing strip 804 is heated by the heater 805. With the rotating frame 801 and the BOPP film body 1 rotating at the same time, information can be printed on the BOPP film body 1. This invention combines the rotation process of the BOPP film body 1 and the printing action of the information printing strip 804 in one step through mechanical transmission, saving the trouble of step-by-step operation and effectively improving the efficiency of use.

[0043] The specific usage and function of this embodiment: In this invention, since the BOPP film body 1 is provided with a bag opening 101 and a connecting edge 102 around its periphery, and with the reinforcing strip 104 of the bag opening 101, the BOPP film body 1 can be more stable when being opened and closed, and wrinkles can be avoided during use. In addition, a tension break edge 103 is provided between the two BOPP film bodies 1, which can be used for stretching and cutting, effectively preventing tearing of the edge of the BOPP film body 1 when it is pulled strongly. When the positioning component 4 and the support component 3 are connected, the slide rod 402 slides into the connecting slide tube 302, and the limiting round rod 303 slides through the connecting frame 401. The two ends of the tension spring a304 are respectively connected to the connecting frame 401 and the support seat 301. Moreover, the rotating wheel 404 is rolled and connected to the BOPP film body 1. Since the positioning component 4 and the support component 3 are provided, the rotating wheel 404 is rolled and connected to the left and right edges of the BOPP film body 1, and the tension spring a304 is rolled and connected to the left and right edges of the BOPP film body 1 by means of the tension spring a304. The spring a304's rebound pull presses down on the left and right edges of the BOPP film body 1, preventing it from shifting and ensuring smoother operation during stretching. The arc-shaped baffle 503, in contact with the BOPP film body 1, and the spring b502 mounted on the first telescopic rod 5, tighten the BOPP film body 1 through the arc-shaped baffle 503, preventing it from loosening after use and improving overall stability. The information printing component 8, with the usage date and anti-counterfeiting label on the information printing strip 804, is heated by the heater 805. Combined with the simultaneous rotation of the rotating frame 801 and the BOPP film body 1, information printing is performed on the BOPP film body 1. This invention integrates the rotation of the BOPP film body 1 and the printing action of the information printing strip 804 into a single, mechanically transmitted process, eliminating the hassle of separate operations and effectively improving efficiency.

[0044] Finally, it should be noted that when describing the position of each component and the mating relationship between them, the present invention usually uses one or a pair of components as examples. However, those skilled in the art should understand that such positions, mating relationships, etc., are also applicable to other components or other pairs of components.

[0045] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

Claims

1. A double sided heat sealable BOPP film characterized in that: A double-sided heat-sealed BOPP film includes: a BOPP film body (1) and a rotating sleeve (6), wherein the BOPP film body (1) is wound and installed on the rotating sleeve (6); an installation roller (2) is rotatably installed inside the rotating sleeve (6); support components (3) are provided at both ends of the installation roller (2), and the two support components (3) are symmetrically distributed; a positioning component (4) is provided on the support component (3); a first telescopic rod (5) and a second telescopic rod (7) are provided at both ends of the installation roller (2), and the first telescopic rod (5) and the second telescopic rod (7) are located on both sides of the support component (3); the positioning component (4) includes a connecting frame (401), a sliding rod (402), and an installation frame (403). 403) and rotating wheel (404), the bottom of the connecting frame (401) is provided with two sliding rods (402), and the two sliding rods (402) are distributed in a vertical parallel manner. The side of the connecting frame (401) is provided with a mounting frame (403), and the rotating wheel (404) is rotatably mounted on the mounting frame (403) through a pin shaft; when the positioning component (4) and the support component (3) are connected, the sliding rod (402) slides into the connecting slide tube (302), and the limiting round rod (303) slides through the connecting frame (401), and the two ends of the tension spring a (304) are connected to the connecting frame (401) and the support seat (301) respectively, and the rotating wheel (404) is rolledly connected to the BOPP film body (1).

2. The dual sided heat sealable BOPP film as claimed in claim 1, wherein: The BOPP film body (1) has a bag opening (101) at the left end, and a connecting edge (102) at the front, back or right end of the BOPP film body (1). The BOPP film bodies (1) are evenly distributed in a linear array, and a stretching edge (103) is provided between two BOPP film bodies (1). The stretching edge (103) is connected to the connecting edge (102). A reinforcing strip (104) is provided inside the bag opening (101), and an information strip (105) is provided at the top of the bag opening (101).

3. The dual sided heat sealable BOPP film as claimed in claim 1, wherein: The mounting roller (2) has four limiting grooves (201) at both the left and right ends, and the four limiting grooves (201) are distributed in a ring array. The mounting roller (2) has mounting rings (202) at both the left and right ends, and the inner circumferential surface of the mounting rings (202) has four limiting blocks (203). The mounting rings (202) are engaged with the limiting grooves (201) through the limiting blocks (203). The support component (3), the first telescopic rod (5) and the second telescopic rod (7) are all set on the mounting rings (202).

4. The dual sided heat sealable BOPP film as claimed in claim 1, wherein: The support assembly (3) includes a support base (301), a connecting slide tube (302), a limiting rod (303), and a tension spring a (304). The support base (301) has two connecting slide tubes (302) on its top and three limiting rods (303) on its top. The limiting rods (303) and the connecting slide tubes (302) are distributed vertically, and the tension spring a (304) is fitted on the limiting rods (303).

5. The dual sided heat sealable BOPP film as claimed in claim 1, wherein: Two connecting blocks (501) are provided at the ends of the first telescopic rod (5). A tension spring b (502) is fitted on the first telescopic rod (5), and the two ends of the tension spring b (502) are connected to the connecting block (501) and the bottom tube of the first telescopic rod (5) respectively. An arc-shaped baffle (503) is provided between the left and right connecting blocks (501), and the arc-shaped baffle (503) is in contact with the BOPP film body (1).

6. The dual sided heat sealable BOPP film as claimed in claim 1, wherein: Two rotating seats (701) are provided at the ends of the second telescopic rod (7). A tension spring c (702) is fitted on the second telescopic rod (7). The two ends of the tension spring c (702) are respectively connected to the rotating seat (701) and the bottom tube of the second telescopic rod (7). A connecting rod (703) is rotatably installed between the left and right rotating seats (701) through a bearing. An information printing component (8) is provided on the connecting rod (703).

7. The dual sided heat sealable BOPP film as claimed in claim 6, wherein: The information printing component (8) includes a rotating frame (801), a support rod (802), a pressing plate (803), an information printing strip (804), and a heater (805). The rotating frame (801) is rotatably mounted on a connecting rotating rod (703). The rotating frame (801) is provided with four support rods (802), which are arranged in a circular array. The ends of the support rods (802) are provided with pressing plates (803). The pressing plates (803) are arc-shaped, and the pressing plates (803) are provided with information printing strips (804) at the middle position of the outer side. The pressing plates (803) are in contact with the BOPP film body (1). A heater (805) is provided on one side of the rotating frame (801).

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