Printing device for woven bag

Abstract

The utility model discloses a lettering device for woven bags, which relates to the technical field of woven bag processing, and comprises a machine body, an air cylinder fixed in the machine body, a printing mold fixed at the telescopic end of the air cylinder, and an air outlet head fixed in the machine body, an air heater is arranged on the rear side of the machine body, an air outlet of the air heater is communicated with an air outlet head through a pipeline, and an air outlet groove used for discharging hot air is formed in the bottom of the air outlet head. And the pressing structure comprises a bracket fixed in the machine body. Through the arrangement of the support and the pressing wheels, a woven bag is conveyed to the position below the support through the conveyor in the machine body after being printed, the two sets of pressing wheels are pressed on the front side and the rear side of the woven bag respectively, the phenomenon that the woven bag floats disorderly in the process that an air outlet head blows out hot air is avoided, and stable conveying of the woven bag is guaranteed; therefore, the drying effect of the woven bag after lettering is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of woven bag processing, in particular to a printing device for woven bags. Background Art

[0002] Woven bags need to be printed after slitting. Printing can mark product information, production date and other information on the woven bags. Company name, brand logo, slogan, etc. can also be printed on them to play a role in brand publicity and promotion. After printing, the woven bags pass through the air duct position, and the air duct blows out hot air to heat the printing position of the woven bags to ensure that the printing position of the woven bags is clear and clean, so that the printed part is more firmly attached to the surface of the woven bags, improving wear resistance and durability.

[0003] To this end, the patent with publication number CN217892232U discloses a plastic woven bag printing device, including a workbench, a vertical plate, a conveyor belt, a slide, and a collection box are arranged on the top of the workbench, a top plate is fixedly connected to the top of the vertical plate, and a cylinder, a telescopic rod, and a mounting frame are arranged on the top of the mounting frame. A printing mold, a fixing block, and a fixing mechanism are arranged at the bottom of the mounting frame, and a drying mechanism is fixedly connected to the bottom of the top plate and located on one side of the cylinder. The plastic woven bag printing device described in the utility model can replace different printing molds for different printing patterns by setting a fixing block, a fastening bolt, a fixing mechanism, a drying mechanism, a conveyor belt, etc., thereby improving the practicality of the device, having a good fixing effect on the woven bags, and being able to dry the printed woven bags in time to improve the drying effect. The printed woven bags are automatically stacked neatly after printing, reducing manual operations and improving work efficiency.

[0004] The above patent uses a conveyor belt to transport the woven bags, which pass through the printing position and the drying position in sequence during the transportation process. During drying, the printing position of the woven bags is dried through the cooperation of the hot air blower and the air duct. However, the hot air blows directly to the woven bags, which will cause the woven bags to float around, thereby affecting the drying effect of the printing position of the woven bags. Utility Model Content

[0005] The utility model provides a printing device for a woven bag, which has the advantages of preventing the woven bag from floating around during the hot air heating process, thereby ensuring the drying effect of the woven bag after printing, so as to solve the problems raised in the background technology.

[0006] In order to prevent the woven bag from floating around during the hot air heating process, thereby ensuring the drying effect of the woven bag after printing, the utility model provides the following technical solutions: a printing device for woven bags, comprising a body, a cylinder is fixed inside the body, a printing mold is fixed at the telescopic end of the cylinder, and also includes:

[0007] An air outlet head, the air outlet head is fixed inside the machine body, a hot air blower is arranged at the rear side of the machine body, the air outlet of the hot air blower is connected with the air outlet head through a pipeline, and an air outlet slot for hot air discharge is arranged at the bottom of the air outlet head;

[0008] The downward pressing structure includes a bracket fixed inside the machine body, the bracket is located below the air outlet, a connecting seat is provided at the bottom of the bracket, and a pressing wheel for pressing down the woven bag is movably sleeved on the surface of a fixed shaft fixed on the inner wall of the connecting seat.

[0009] As a preferred technical solution of the utility model, the inner wall of the air outlet slot is provided with a guide surface for guiding and accelerating the hot air when it flows through.

[0010] As a preferred technical solution of the utility model, the bracket includes two fixing rods fixed inside the body, a square ring is fixed between the two fixing rods, and the connecting seat is arranged below the square ring.

[0011] As a preferred technical solution of the utility model, a triangular plate is fixed on the surface of the fixing rod, and the triangular plate is fixed inside the machine body to improve the connection strength between the fixing rod and the machine body.

[0012] As a preferred technical solution of the utility model, a plurality of guide grooves are provided at the bottom of the square ring, a spring is fixed inside the guide groove, a guide rod that moves vertically along the inner wall of the guide groove is fixed at the bottom of the spring, and the connecting seat is fixed at the bottom of the guide rod.

[0013] As a preferred technical solution of the utility model, the guide rod is in a regular hexagon, and the shape of the guide groove is adapted to the shape of the guide rod, so as to prevent the pressure wheel from rotating in the horizontal direction.

[0014] As a preferred technical solution of the utility model, the pressure wheel includes a wheel body movably sleeved on a fixed shaft inside the connecting seat, and a rubber ring is fixed on the wheel body.

[0015] Compared with the prior art, the utility model provides a printing device for woven bags, which has the following beneficial effects:

[0016] 1. The printing device for woven bags is provided with a bracket and a pressing wheel. After being printed, the woven bags are transported to the bottom of the bracket through a conveyor inside the machine body, and are pressed on the front and rear sides of the woven bags by two sets of pressing wheels respectively, so as to prevent the woven bags from floating randomly during the process of hot air blowing out by the air outlet, ensure the smooth transportation of the woven bags, and thus ensure the drying effect of the woven bags after printing.

[0017] 2. The printing device for woven bags is provided with a spring, which provides a buffer space for the upward movement of the pressing wheel, so as to adapt to the use of woven bags of different thicknesses. The elastic force of the spring is used to ensure that the pressing wheel can be closely attached to the top of the woven bag, thereby ensuring the smooth transportation of the woven bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural schematic diagram of the fixing rod of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the bracket of the utility model;

[0021] Figure 4 It is a schematic diagram of the spring structure of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the guide rod of the utility model.

[0023] In the figure: 1, machine body; 2, printing mold; 3, cylinder; 4, air outlet; 5, air outlet slot; 6, hot air blower; 7, downward pressure structure; 71, bracket; 711, square ring; 712, fixing rod; 713, triangle plate; 72, connecting seat; 73, pressure wheel; 731, wheel body; 732, rubber ring; 74, guide rod; 75, guide slot; 76, spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model discloses a printing device for woven bags, including a machine body 1, a cylinder 3 is fixed inside the machine body 1, a printing mold 2 is fixed at the telescopic end of the cylinder 3, the woven bag is placed on a conveyor belt in the machine body 1, the conveyor belt runs to make the woven bag pass under the printing mold 2, the piston rod of the cylinder 3 is extended to drive the printing mold 2 to move downward to realize the printing of the woven bag, and the realization of the printing mold 2 also includes:

[0026] The air outlet 4 is fixed inside the machine body 1. A hot air blower 6 is arranged at the rear side of the machine body 1. The air outlet of the hot air blower 6 is connected with the air outlet 4 through a pipeline. An air outlet slot 5 for hot air discharge is provided at the bottom of the air outlet 4. After the hot air blower 6 is operated, the hot air flows into the air outlet 4 through the pipeline, and then blows out from the air outlet slot 5 to dry the printed area on the woven bag.

[0027] The downward pressing structure 7 includes a bracket 71 fixed inside the body 1, the bracket 71 is located below the air outlet 4, a connecting seat 72 is provided at the bottom of the bracket 71, and a pressing wheel 73 for pressing down the woven bag is movably sleeved on the surface of a fixed axis fixed on the inner wall of the connecting seat 72. When the pressing wheel 73 rotates, it rotates around the fixed axis of the inner wall of the connecting seat 72. There are two pressing wheels 73, both of which are arranged below the bracket 71.

[0028] Specifically, the inner wall of the air outlet slot 5 is provided with a guide surface for guiding and accelerating the hot air when it flows through.

[0029] In this implementation plan, please refer to Figure 2 The guide surface is inclined, so that the air outlet slot 5 is larger at the top and smaller at the bottom, so that the hot air can be guided and the flow rate of the hot air can be increased when the hot air flows through.

[0030] Specifically, the bracket 71 includes two fixing rods 712 fixed inside the body 1 , a square ring 711 is fixed between the two fixing rods 712 , and the connecting seat 72 is arranged below the square ring 711 .

[0031] In this implementation plan, please refer to Figure 2 and Figure 3 Two fixing rods 712 and a square ring 711 together form a bracket 71. Two sets of pressing wheels 73 are installed at the bottom of the bracket 71. The pressing wheels 73 press on the woven bag to prevent the woven bag from being blown around by hot wind.

[0032] Specifically, a triangular plate 713 is fixed on the surface of the fixing rod 712 , and the triangular plate 713 is fixed inside the machine body 1 to improve the connection strength between the fixing rod 712 and the machine body 1 .

[0033] In this implementation plan, please refer to Figure 2 The triangular plate 713 is used to increase the contact area between the fixing rod 712 and the body 1, thereby improving the connection strength between the fixing rod 712 and the body 1.

[0034] Specifically, a plurality of guide grooves 75 are formed at the bottom of the square ring 711 , a spring 76 is fixed inside the guide groove 75 , a guide rod 74 that moves vertically along the inner wall of the guide groove 75 is fixed at the bottom of the spring 76 , and the connecting seat 72 is fixed at the bottom of the guide rod 74 .

[0035] In this implementation plan, please refer to Figure 4The number of guide rods 74 corresponds to the number of guide grooves 75. Springs 76 are fixed on the tops of guide rods 74. Guide rods 74 drive pressure wheels 73 to press on woven bags through connecting seats 72 under the elastic force of springs 76. Springs 76 can be compressed and deformed, so that pressure wheels 73 can adapt to woven bags of different thicknesses.

[0036] Specifically, the guide rod 74 is in a regular hexagonal shape, and the shape of the guide groove 75 matches the shape of the guide rod 74 , so as to prevent the pressure wheel 73 from rotating in the horizontal direction.

[0037] In this implementation plan, please refer to Figure 5 The guide rod 74 is in a regular hexagon, which prevents the guide rod 74 from rotating in the guide groove 75, thereby ensuring that the guide rod 74 is always in a vertical movement state.

[0038] Specifically, the pressing wheel 73 includes a wheel body 731 movably sleeved on a fixed shaft inside the connecting seat 72 , and a rubber ring 732 is fixed on the wheel body 731 .

[0039] In this implementation plan, please refer to Figure 4 The wheel body 731 can rotate along the fixed axis, and the rubber ring 732 is used to increase the friction with the woven bag to achieve smooth transportation of the woven bag.

[0040] The working principle and use process of the utility model are as follows: the woven bag is transported by the conveyor belt in the machine body 1. When passing under the printing mold 2, the cylinder 3 is started to drive the printing mold 2 to move downward to realize printing. After printing, it is transported by the conveyor belt through the position of the pressure wheel 73. The spring 76 is fixed in the guide groove 75 of the bracket 71. The guide rod 74 drives the pressure wheel 73 to press on the woven bag through the connecting seat 72 under the elastic force of the spring 76. The operation of the conveyor belt drives the woven bag to move, and the woven bag drives the pressure wheel 73 to rotate. The two groups of pressure wheels 73 are respectively pressed on the front and rear sides of the woven bag. After the woven bag is pressed down by the pressure wheel 73, it passes under the air outlet 4. The hot air blower 6 is operated to blow hot air from the air outlet slot 5 of the air outlet 4 to heat and dry the printing position of the woven bag. After drying, the woven bag can be collected from the right side of the machine body 1. The surface of the pressure wheel 73 is a rubber ring 732, which can increase the friction between the woven bag and the pressure wheel 73, thereby ensuring the smooth transportation of the woven bag.

[0041] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printing device for woven bags, comprising a body (1), a cylinder (3) fixed inside the body (1), a printing mold (2) fixed at the telescopic end of the cylinder (3), characterized in that: Also includes: An air outlet (4), the air outlet (4) being fixed inside the machine body (1), a hot air blower (6) being arranged at the rear side of the machine body (1), an air outlet of the hot air blower (6) being connected to the air outlet (4) through a pipeline, and an air outlet slot (5) for discharging hot air is arranged at the bottom of the air outlet (4); A downward pressing structure (7), the downward pressing structure (7) comprising a bracket (71) fixed inside the machine body (1), the bracket (71) being located below the air outlet (4), a connecting seat (72) being provided at the bottom of the bracket (71), a pressing wheel (73) for pressing down the woven bag being movably sleeved on the surface of a fixed shaft fixed to the inner wall of the connecting seat (72).

2. A printing device for woven bags according to claim 1, characterized in that: The inner wall of the air outlet slot (5) is provided with a guide surface for guiding and accelerating the hot air as it flows through.

3. A printing device for woven bags according to claim 1, characterized in that: The bracket (71) comprises two fixing rods (712) fixed inside the machine body (1), a square ring (711) is fixed between the two fixing rods (712), and the connecting seat (72) is arranged below the square ring (711).

4. A printing device for woven bags according to claim 3, characterized in that: A triangular plate (713) is fixed on the surface of the fixing rod (712); the triangular plate (713) is fixed inside the machine body (1) and is used to improve the connection strength between the fixing rod (712) and the machine body (1).

5. The printing device for woven bags according to claim 3, characterized in that: The bottom of the square ring (711) is provided with a plurality of guide grooves (75), a spring (76) is fixed inside the guide groove (75), a guide rod (74) is fixed at the bottom of the spring (76) and moves vertically along the inner wall of the guide groove (75), and the connecting seat (72) is fixed at the bottom of the guide rod (74).

6. A printing device for woven bags according to claim 5, characterized in that: The guide rod (74) is in the shape of a regular hexagon, and the shape of the guide groove (75) is adapted to the shape of the guide rod (74) and is used to prevent the pressure wheel (73) from rotating in the horizontal direction.

7. A printing device for woven bags according to claim 1, characterized in that: The pressing wheel (73) comprises a wheel body (731) movably sleeved on a fixed shaft inside the connecting seat (72), and a rubber ring (732) is fixed on the wheel body (731).

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