Clamping head bag capable of containing flexible flat cable

Abstract

The invention discloses a clamping head bag capable of containing a flexible flat cable, which is characterized in that an inner hole is formed when a clamping head is subjected to hot sewing, an outlet hole is punched and a semi-constraint hot sewing edge is additionally printed at a corresponding position on the clamping head, and after the flexible flat cable sequentially penetrates through the inner hole, the semi-constraint hot sewing edge and the outlet hole, external processing and electrification can be continuously completed. And the damage to the hot sewing thread caused by moving and twisting the flexible flat cable is reduced in the use process after installation.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of special purpose packaging bag. BACKGROUND

[0002] The card head bag is a kind of small commodity packaging bag commonly seen in the market at present, which is mainly made of polypropylene material (pp, cpp, opp). By pressing a heat-sealed line on the top of the ordinary packaging bag, the bag is divided into two spaces, namely the card head and the product bag. The card head part can be hung with a hook after punching, which facilitates the storage, placement and retrieval of the bag. After the card head is pressed out by the heat plasticity of polypropylene, a heat-sealed line can be added to the product bag part to obtain two or more space bags for holding items. This is a card head sub-bag (also known as a card head sub-bag). In addition, a seal can be set at the heat-sealed line connection of the card head by using the heat plasticity of polypropylene, and the opening of the product bag can be set at the card head, thereby obtaining an inverted seal card head bag (also known as a card head inverted seal bag or inverted seal bag). The card head bag has the advantages of low cost, easy mass production, convenient and flexible use, and is commonly used in packaging bags for small commodities, news publishing, clothing and daily necessities, cultural supplies and other industries.

[0003] The number of patent applications for card head bags in China is limited. Chinese patent application No. 202030749364.6, "Balloon packaging bag (Happy Birthday Laser Card Head Bag)", and Chinese patent application No. 202030711338.4, "Balloon packaging bag (Laser Card Head Bag)", are both appearance patents; Chinese patent application No. 20202078256.0, "Semi-automatic binding device for card head bag", is a peripheral device for use of the card head bag; Chinese patent application No. 20191014269.2, "Full-automatic card head bag processing integrated machine", and Chinese patent application No. 20181016171.0 (invention) and 20182027445.2 (utility model), "Full-automatic paperboard type card head bag manufacturing system", are all processing and manufacturing machines or systems for producing card head bags; there are few innovative invention patents for card head bags themselves. In some special application environments such as special equipment, new card head bag varieties can be designed according to the advantages of card head bag structure concept, which can continue to play the advantages of low cost, convenient and flexible use while meeting specific needs.

[0004] FFC flexible flat cable (Flexible Flat Cable) has the advantages of small size, light weight, good flexibility, compact structure, good electrical reliability, etc. Because it can be easily moved, bent and twisted without damaging the wires, it has high assembly reliability and quality, and is widely used in the connection between mobile parts and PCB boards, and in the connection of weak signal in small-sized electrical equipment.

[0005] FFC flexible flat cable is mainly composed of two sides of insulating film and middle conductor, usually, reinforcing plate is additionally installed at contact point, conductor core number, pitch, length and other parameters can be customized in addition to common specifications, in addition, according to whether metal contact is on the same side, whether both ends of contact are exposed on both sides, whether reinforcing plate is installed, whether reinforcing plate is directly attached to conductor or insulating film, whether half of reinforcing plate is raised, etc. Two end contact structures are further divided into 15 kinds of customized specifications. The parameter table related to width of common FFC flexible flat cable and total width are as follows: The total width W of the flexible flat cable is (N+1)P. SUMMARY

[0006] The purpose of the present application is to provide a kind of head bag of soft flat cable, so as to connect the electronic components in the head bag of external equipment moving relative to each other.

[0007] In order to achieve the above purpose, the head bag of the present application comprises a head, a product bag, which is different from the conventional head bag, mainly in the head and the heat seam part.

[0008] The heat seam is skipped by several steps at the intersection near the expected installation of the soft flat cable, leaving a certain width of the inner hole, and the width of the inner hole is slightly wider than the width of the soft flat cable to be installed, so that the soft flat cable can easily pass through the inner hole from the product bag into the head; The soft flat cable should be kept at a proper distance from the hook hole and the side edge of the head bag during installation to avoid interference with the hook and protect the side edge of the head bag from being broken, so that the position of the inner hole on the heat seam should also be kept at a proper distance from the hook hole and the heat seam.

[0009] The head is punched near the expected installation of the soft flat cable, and the diameter of the punched hole is slightly larger than the width of the soft flat cable to be installed, and the shape of the punched hole is a circular hole or an elliptical hole with a smaller curvature maximum value, so that the soft flat cable can easily pass through the head and will not be easily cut and torn by the collision of the soft flat cable on both sides; The distance between the punched hole and the upper edge of the head bag should also be kept at a proper distance.

[0010] When the ratio of the distance between the heat seam inner hole of the clamp head and the through hole of the clamp head and the width of the soft flat cable to be installed is large, the semi-restrained heat seam on both sides of the line connecting the inner hole and the through hole is pressurized to guide the soft flat cable in the clamp head and avoid the soft flat cable bending and embedding between the through hole and the inner hole of the clamp head when rotating, so that the soft flat cable cannot be stretched and popped out. The distance between the upper and lower ends of the semi-restrained heat seam and the through hole, the inner hole or the heat seam is left to provide sufficient rotation freedom for the soft flat cable passing through the through hole, so that the curvature of the soft flat cable is reduced when rotating, and the impact of the force pulling the upper and lower ends of the soft flat cable on the points of the through hole-semi-restrained heat seam-inner hole is buffered when rotating. The inner distance between the two semi-restrained heat seams is also slightly larger than the width of the soft flat cable to be installed. When the distance between the through hole and the heat seam is too close, the semi-restrained heat seam does not need to be added.

[0011] The beneficial effects of the present application are: A. The semi-processed soft flat cable can be conveniently installed from the product bag, and the soft flat cable can be further processed after passing through the clamp head; B. The soft flat cable still has sufficient rotation freedom and flexibility after passing through the installation clamp head bag; C. The guiding effect of the semi-restrained heat seam on the soft flat cable in the clamp head bag when the soft flat cable is rotated or twisted after passing through the installation clamp head bag can protect the clamp head boundary heat seam from damage caused by pulling and collision. At the same time, the failure degree of the semi-restrained heat seam can also serve as a warning for the service life of the clamp head boundary heat seam. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The clamp head bag of the present application when not installed with a soft flat cable.

[0013] Figure 2 The clamp head bag of the present application when installed with a soft flat cable.

[0014] Figure 3 The inverted clamp head bag of the present application and the schematic diagram after installing a soft flat cable.

[0015] Figure 1 、 Figure 2 In the drawings: 1 clamp head, 11 hook hole, 2 clamp head boundary heat seam, 3 product bag, 31 sealing, 4 through hole, 5 semi-restrained heat seam, 6 inner hole, 7 soft flat cable. DETAILED DESCRIPTION

[0016] The present application will be further described below in conjunction with the embodiments of the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0017] As shown in the figure, a card head bag capable of accommodating soft flat cable 7 includes card head 1 and product bag 3, and the soft flat cable is arranged near the right side of the bag edge.

[0018] In this embodiment, the horizontal interval of the soft flat cable installation should also consider the safety distance from the hook punching hole 11 and the side edge of the card head bag, and the safety distance is usually greater than 3 mm, in addition to the position of the circuit node inside the product bag 3 and outside the card head 1. The horizontal coordinate of the corresponding through hole 4 and inner hole 6 position is also the same as the horizontal coordinate of the soft flat cable installation.

[0019] In a specific embodiment, the card head bag capable of accommodating soft flat cable 7 provided by the present application does not perform heat sealing treatment near the intersection of the card head boundary heat sealing line 2 and the soft flat cable 7 to be installed, and the width of the inner hole 6 is vacated. According to the width table of commonly used specifications of soft flat cable, a group of card head bags with different widths of inner hole 6 are prefabricated according to the specifications of about 2-5 mm or 2 times the core spacing wider than the total width of the soft flat cable 7. The wider the total width of the soft flat cable 7 to be installed, the greater the amount of inner hole 6 width selected for the prefabricated card head bag capable of accommodating soft flat cable 7. When the inner hole 6 width of the selected prefabricated card head bag capable of accommodating soft flat cable 7 is slightly smaller than the required width, a screwdriver, iron bar or other elongated hard bar can be used to extend into the inner hole 6 from the product bag 3 and pull open a little heat sealing line 2 on both sides to complete the manual hole expansion.

[0020] In a specific embodiment, the card head bag punches a through hole 4 at the position opposite to the inner hole 6 above the right side of the card head 1. The shape of the through hole can be circular, oval or edge without fold line hole. When the through hole adopts circular arc chamfered polygon or oval through hole due to the wide soft flat cable to be installed, the maximum curvature of the edge curve corresponds to a curvature radius not less than 1.5 times the core spacing of the soft flat cable to be installed. The caliber of the through hole 4 is slightly larger than the total width of the soft flat cable 7 to be installed. When the number of cores of the soft flat cable 7 to be installed is small and the total width is thin, the caliber can be selected to be 1.5 times larger than the total width of the soft flat cable 7. When the number of cores of the soft flat cable 7 to be installed is large and the total width is wide, the maximum caliber of the through hole 4 can be 2-5 mm larger than the total width of the soft flat cable 7.

[0021] In a specific embodiment, when the distance between the heat-sealed inner hole 6 and the clamping hole 4 is greater than 5 times the total width of the flexible flat cable 7 to be installed, two more heat-sealed edges 5 are added on both sides of the line connecting the heat-sealed inner hole 6 and the clamping hole 4. The length of the added heat-sealed edges 5 can be equal to the length of the heat-sealed line 2. The distance between the upper and lower ends of the added heat-sealed edges 5 and the clamping hole 4, heat-sealed line 2, or inner hole 6 should not be less than the length of the heat-sealed line 2. The inner side distance of the added heat-sealed edges 5 should be slightly greater than the width of the flexible flat cable 7 to be installed. When the number of cores of the installed flexible flat cable 7 is small and the total width is thin, the inner side distance of the added heat-sealed edges 5 should be 1.5-2 times the total width of the installed flexible flat cable 7. When the number of cores of the installed flexible flat cable 7 is large and the total width is greater than 10 mm, the inner side distance of the added heat-sealed edges 5 should be 2-5 mm greater than the total width of the installed flexible flat cable 7.

[0022] Further, when the distance between the clamping hole 4 and the inner hole 6 or heat-sealed line 2 is less than 5 times the total width of the flexible flat cable 7 to be installed, the added heat-sealed edges 5 can not be necessary.

[0023] Further, the distance between the clamping hole 4 and the upper edge of the clamping bag should also maintain a safe distance, which is usually greater than 3 mm.

[0024] Further, when the planned installation of the flexible flat cable 7 requires processing of other attached elements in the middle or at both ends, the processing can be done first on the outside of the clamping bag, and then the processed end of the flexible flat cable 7 is installed in the product bag 3 from the seal 31, and then passed through the inner hole 6, heat-sealed edges 5, and clamping hole 4 in turn, and finally the other end of the flexible flat cable 7 is processed from the outside of the clamping bag 1.

[0025] Further, when the flexible flat cable 7 needs to be installed in an inverted clamping bag, the end of the flexible flat cable 7 that is close to the clamping bag 1 is not processed first. After the product bag 3 is installed from the seal 31, the seal 31 is kept open, the clamping bag 1 is inverted, and the flexible flat cable 7 is folded back through the inner hole 6, heat-sealed edges 5, and clamping hole 4. Then the clamping bag 1 and the flexible flat cable 7 are restored, and the seal is closed. At this time, the extended end of the flexible flat cable 7 installed in the inverted clamping bag can be processed.

[0026] Further, the outer extension of the flexible flat cable 7 from the clamping bag through the clamping hole 4 will have greatly reduced twisting amplitude and pulling force when moving and twisting with other external components, greatly reducing the damage to the heat-sealed line 2 and the inner hole 6.

[0027] The above has carried out the detailed introduction to the card head bag of the soft flat cable provided by the application. The principle and implementation mode of the application are described by applying specific examples in this paper, and the above example is only used to help understand the method of the application and its core idea. It should be pointed out that for ordinary skilled person in the art and other fields using the application, some improvements and modifications can be made to the application without departing from the principle of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A card holder bag for holding flexible ribbon cables, characterized in that... A short section of the hot-stitched seam is pressed to create an inner hole, allowing the flexible cable to pass through the product bag and the card head before exiting through the hole next to the card head hanging hole. This creates an electrical connection channel next to the hanging hole that forms the mechanical connection. The position of the inner hole on the hot-stitched seam is determined by the arrangement requirements of the flexible cable for the internal and external circuits of the card head bag, as well as the safe distance between the flexible cable and the hanging hole and the side of the card head bag.

2. The card holder bag for holding flexible ribbon cables as described in claim 1, characterized in that... Based on the requirement that the flexible flat cable's outgoing part can rotate without interfering with the hook, the material of the card holder bag, and the expected service life, the safe distance between the outgoing hole and the hanging hole should not be less than 3mm, and the safe distance between the outgoing hole, the inner hole, and the edge of the card holder bag should not be less than 3mm.

3. A card holder bag for holding flexible ribbon cables as described in claim 1, characterized in that... To balance the degree of freedom of rotation of the section of the flexible flat cable extending out of the clip bag after installation and the durability of the clip bag's exit hole from the edge of the flexible flat cable during movement after installation, the diameter of the exit hole is 2-5mm larger than the total width of the installed flexible flat cable, or when the total width of the flexible flat cable is less than 10mm, the diameter of the exit hole is 1.5 times the total width of the flexible flat cable. The shape of the exit hole is circular, elliptical, or a hole without zigzag edges. When the exit hole is elliptical or a rounded chamfered polygon, the radius of curvature corresponding to the maximum curvature of its edge curve is not less than 1.5 times the spacing between the cores of the installed flexible flat cable.

4. A card holder bag for holding flexible ribbon cables as described in claim 1, characterized in that... To facilitate the installation of flexible flat cables, pre-drill inner holes that are approximately 2-5 mm wider than the total width of the installed flexible flat cables or twice the core spacing. When a wider inner hole is required, it is permissible to manually enlarge the hole to both sides with the pre-drilled inner hole as the center.

5. A card holder bag for holding flexible ribbon cables as described in claim 1, characterized in that... When the distance between the inner hole of the hot-stitched thread and the exit hole of the clip is greater than 5 times the total width of the installed flexible cable, semi-constrained hot-stitched edges are pressed on both sides of the area where the flexible cable passes through the clip. The distance between the upper and lower ends of the pressed semi-constrained hot-stitched edges and the exit hole, hot-stitched thread, or inner hole is not less than the length of the hot-stitched thread seam. The inner spacing of the pressed semi-constrained hot-stitched edges is slightly larger than the width of the flexible cable to be installed. When the total width of the installed flexible cable is relatively thin, the inner spacing of the pressed semi-constrained hot-stitched edges is 1.5 to 2 times the total width of the flexible cable. When the total width of the flexible ribbon cable is greater than 10mm, the spacing between the inner sides of the semi-constrained heat-sealed edge is 2-5mm larger than the total width of the installed flexible ribbon cable. This allows the flexible ribbon cable to move and rotate while extending out of the card holder bag, while also constraining the part inside the bag. This prevents the flexible ribbon cable from bending and getting embedded between the card holder's through-hole and inner hole, and protects the heat-sealed thread and inner hole from being cut or collided by the edge of the flexible ribbon cable. When the distance between the inner hole of the heat-sealed thread and the card holder's through-hole is less than 5 times the total width of the installed flexible ribbon cable, it is not necessary to print a semi-constrained heat-sealed thread.

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