Point breaking device for bag blowing machine
阅读说明：本技术 一种用于吹袋机的点断装置 (Point breaking device for bag blowing machine ) 是由 蒋三林 廖高水 兰菊花 于 2019-11-22 设计创作，主要内容包括：本发明公开了一种用于吹袋机的点断装置,涉及胶袋生产技术领域,主要为了解决点断装置无法调节点断之间的距离问题；该点断装置,包括固定架体,固定架体上设置有相平行的第一横杆轴和第二横杆轴,所述第二横杆轴上设有绕辊,绕辊外壁上轴向设置有多条等距分布的凸条,旋转辊上轴向设置有设置多个与凸条相对应的点断部且凸条的数量为点断部数量的整数倍,传动箱内部安装有多个具有传动比为整数的齿轮传动副。该点断装置可通过调节传动箱内部传动比的齿轮传动副可调节绕辊与旋转辊的转速比,进而可调节塑料薄膜相邻两次点断处之间的距离,而且调节方便快捷,可有效适应塑料薄膜每节的长度要求,便于使用。(The invention discloses a spot-breaking device for a bag blowing machine, relates to the technical field of plastic bag production, and mainly aims to solve the problem that the distance between spot breaks cannot be adjusted by the spot-breaking device; the spot-breaking device comprises a fixed frame body, wherein a first transverse rod shaft and a second transverse rod shaft which are parallel to each other are arranged on the fixed frame body, a winding roller is arranged on the second transverse rod shaft, a plurality of convex strips which are distributed at equal intervals are axially arranged on the outer wall of the winding roller, a plurality of spot-breaking parts corresponding to the convex strips are axially arranged on a rotating roller, the number of the convex strips is an integral multiple of the number of the spot-breaking parts, and a plurality of gear transmission pairs with transmission ratios being integers are arranged inside a transmission case. The rotating speed ratio of the winding roller and the rotating roller can be adjusted through the gear transmission pair for adjusting the transmission ratio in the transmission case, so that the distance between two adjacent plastic film point-breaking positions can be adjusted, convenience and rapidness in adjustment can be realized, the length requirement of each section of the plastic film can be effectively met, and convenience in use can be realized.)
1. The point breaking device for the bag blowing machine comprises a fixed frame body (1), wherein a first transverse rod shaft (3) and a second transverse rod shaft (4) which are parallel to each other are arranged on the fixed frame body (1), and a winding roller (8) is arranged on the second transverse rod shaft (4), and is characterized in that a plurality of convex strips (5) which are distributed at equal intervals are axially arranged on the outer wall of the winding roller (8), a plurality of point breaking parts (6) corresponding to the convex strips (5) are axially arranged on a rotating roller (7), the number of the convex strips (5) is an integral multiple of the number of the point breaking parts (6), a transmission case (10) which connects the first transverse rod shaft (3) with the second transverse rod shaft (4) is arranged on the side surface of the fixed frame body (1), and a plurality of gear transmission pairs (11) with transmission ratios which are integers are arranged inside the transmission case (10).
2. The spot-breaking device for bag blowing machines according to claim 1, characterized in that the fixed frame (1) has side frames (2) on both sides and each side frame (2) has a guide roller (9) mounted thereon.
3. Spot-breaking device for a bag blowing machine according to claim 1), characterized in that said rotating roller (7) and winding roller (8) have the same external diameter.
4. The spot-cutting device for a bag blowing machine according to claim 2, characterized in that said spot-cutting portion (6) comprises a connecting plate (14), a mounting strip (12) and a plurality of spot-cutting heads (13), said connecting plate (14) being fixed on the outer wall of the rotating roller (7) and the mounting strip (12) being fixed on the side of the connecting plate (14) remote from the rotating roller (7).
5. Spot-cutting device for a bag blowing machine according to claim 4, characterised in that a plurality of spot-cutting heads (13) are arranged linearly at equal distances at the side of the mounting bar (12).
6. The spot-breaking device for the bag blowing machine according to claim 4, wherein the spot-breaking head (13) comprises a guide rod (15) and a heating spot-breaking piece (16) arranged at the front end part of the guide rod (15), an electrified switch (17) is arranged inside the guide rod (15), the tail end of the guide rod (15) extends into the mounting bar (12) and is provided with the electrified switch (17) sliding inside the guide rod, the lower end face of the sliding block (19) is connected to the inner wall of the mounting bar (12) through a return spring (18), and the other end face of the sliding block (19) is provided with a pressure sensor (21).
7. The spot-cutting device for the bag blowing machine according to any one of claims 4 to 6, wherein the connecting plate (14) is detachably connected with the outer wall of the rotating roller (7), an inserting groove (22) with a T-shaped structure is axially formed in the outer wall of the rotating roller (7), a plurality of screw holes (23) are formed in the positions, located on two sides of the inserting groove (22), of the outer wall of the rotating roller (7), and a plurality of fixing holes (20) are formed in the end face of the connecting plate (14).
Technical Field
The invention relates to the technical field of plastic bag production, in particular to a spot-breaking device for a bag blowing machine.
Background
The common food packaging plastic bag is mostly made of polyethylene film, and the film is nontoxic, so the plastic bag can be used for containing food. And the other film is made of polyvinyl chloride, and the polyvinyl chloride is also nontoxic, but the additive added according to the application of the film is harmful to human bodies and has certain toxicity. Therefore, the film and the plastic bag made of the film are not suitable for containing food. Can also stick things to facilitate the operation.
The bag blowing machine heats and melts plastic particles into a molten state, quantitatively extrudes the molten plastic particles to a machine head, then forms a tube blank through a mouth film, continuously expands the tube by blowing air into the tube, and then blows the tube blank by an air ring to cool the tube, and finally blows the tube blank by a tractor at a certain speed to form a film plastic bag meeting the requirements of users by adjusting the thickness and the width. In the in-service use of in-service production, the plastic bag all is rolled up to bundle and is sold, has the point broken string of being convenient for the separation between two sacks, therefore blows the bag machine and often is equipped with the point device of breaking in the flow of producing the plastic bag to reduce the artifical error of tailorring the cause, improve production efficiency.
Application No. CN201821234502.0 discloses a spot-cutting device for a bag blowing machine, which performs a spot-cutting operation on a plastic film passing through the lower side of the machine by a rotating cutting part, but the spot-cutting mode cannot adjust the time of each spot-cutting and cannot adjust the length of each section of the plastic film formed by the spot-cutting.
Disclosure of Invention
The invention aims to provide a spot-breaking device for a bag blowing machine, which solves the problem that the distance between spot breaks cannot be adjusted by the spot-breaking device.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a point device of cutting off for blowing bag machine, is provided with parallel first horizontal pole axle and second horizontal pole axle on the fixed support body including fixed support body, the epaxial roller that is equipped with of second horizontal pole is around the roller, is provided with many equidistance sand grips that distribute on the roller outer wall axially, and the axial is provided with on the rotatory roller and sets up a plurality of point disconnected portions corresponding with the sand grip and the quantity of sand grip is the integral multiple of point disconnected portion quantity, fixed support body side is provided with the transmission case of being connected first horizontal pole axle and second horizontal pole axle, and transmission case internally mounted has a plurality of gear drive pairs that have drive ratio as the integer.
On the basis of the technical scheme, the invention also provides the following optional technical scheme:
in one alternative: and guide rollers are arranged on the side rod frames on both sides of the fixed frame body and on each side rod frame.
In one alternative: the outer diameters of the rotating roller and the winding roller are the same.
In one alternative: the point-breaking part comprises a connecting plate, a mounting bar and a plurality of point-breaking heads, wherein the connecting plate is fixed on the outer wall of the rotating roller, and the mounting bar is fixed on the side face, far away from the rotating roller, of the connecting plate.
In one alternative: the point breaking head comprises a guide rod and a heating point breaking piece arranged at the front end part of the guide rod, a power-on switch is arranged in the guide rod, the tail end of the guide rod extends into the mounting bar and is provided with the power-on switch sliding in the mounting bar, the lower end face of the sliding block is connected to the inner wall of the mounting bar through a return spring, and a pressure sensor is arranged on the other end face of the sliding block.
In one alternative: in one alternative: and a plurality of point broken ends are linearly and equidistantly arranged on the side of the mounting bar.
The connecting plate can be dismantled with rotatory roller outer wall and be connected, specifically, axial seting up on the rotatory roller outer wall has the slot and rotatory roller outer wall to be the T style of calligraphy structure and is located slot both sides department and has all seted up a plurality of screws, be provided with a plurality of fixed orificess on the connecting plate terminal surface.
Compared with the prior art, the invention has the following beneficial effects:
the drive power of the usable plastic film transportation of this point disconnected device makes to rotate around the roller and the rethread transmission makes rotatory roller rotate and realize the equidistance formula point of plastic film disconnected, and the gear drive through adjusting the inside drive ratio of transmission case is vice can adjust the rotational speed ratio around roller and rotatory roller, and then the distance between the adjacent two point disconnected departments of adjustable plastic film, adjust convenient and fast moreover, can effectively adapt to the length requirement of every section of plastic film, convenient to use.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the outer structure of the present invention.
FIG. 3 is a schematic view of a dotted line of the present invention.
FIG. 4 is a schematic view of the structure of the dotted broken end of the present invention.
Fig. 5 is a schematic view of the structure of the rotating roll in the present invention.
Notations for reference numerals: the device comprises a
Detailed Description
The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.