Positioning device of carton printing machine

Abstract

The utility model provides a carton printing machine positioning device which comprises a conveying table and two fixing blocks fixedly arranged on the left side and the right side of a conveying belt. The sliding holes are transversely formed in the two fixing blocks respectively; the sliding square rods are slidably arranged on the two fixing blocks respectively and located in the sliding holes; the clamping plates are arranged at one ends of the sliding square rods; the longitudinal sliding holes are longitudinally formed in the upper ends of the two fixing blocks respectively, and the lower ends of the longitudinal sliding holes communicate with the sliding holes; the longitudinal square rods are arranged on the two fixing blocks in a lifting mode respectively and located in the longitudinal sliding holes, the guide side grooves are formed in the two fixing blocks respectively, located on the outer sides of the longitudinal square rods and communicated with the longitudinal sliding holes, one end of each guide side plate is arranged on the corresponding longitudinal square rod, and the other end of each guide side plate is in clearance fit with the corresponding guide side groove. The extension spring is arranged between the lower end of the guide side plate and the fixed block and located in the guide side groove, and the contact piece is arranged between the lower end of the longitudinal square rod and the upper end of the sliding square rod.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, and particularly relates to a positioning device for a carton printing machine. Background Art

[0002] Cartons are the most widely used packaging products. According to different materials, there are corrugated cartons, single-layer cardboard boxes, etc., with various specifications and models. Commonly used cartons have three layers or five layers, and seven-layer ones are less used. Each layer is divided into inner paper, corrugated paper, core paper, and face paper. The inner and face papers can be tea board paper or kraft paper, and the core paper is corrugated paper. The colors and feels of various papers are different, and the papers (colors, feels) produced by different manufacturers are also different. In order to enrich the expression content of the cartons for packaging objects, manufacturers often print some words and patterns in color on the cartons, and the color printing process is often carried out on the cardboard before the carton is formed into a box body.

[0003] Chinese Patent No. CN202122423020.8 discloses a carton printing machine, belonging to the technical field of printing machines. It includes a conveying table and a color printer. The conveying table is used to transport the cardboard for the carton printing machine to print. The two ends of the color printer along the cardboard transmission direction are respectively a feeding side and a discharging side. One end of the conveying table located on the feeding side of the color printer is provided with a chip suction box. The chip suction box is arranged above the cardboard along the width direction of the cardboard. The side surface of the chip suction box close to the cardboard is provided with a chip suction port. One end of the chip suction box is closed, and the other end of the chip suction box is open and connected with a dust removal fan.

[0004] Although the two clamping plates in the above patent can limit the two sides of the cardboard and play a positioning role on the conveying table, when it is necessary to adjust the position between the two clamping plates, it needs to be rotated frequently to achieve, and the adjustment speed of the two clamping plates cannot be accelerated. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a positioning device for a carton printing machine in view of the defects and deficiencies of the prior art.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A positioning device for a carton printing machine, including a conveying table, two fixing blocks fixedly arranged on the left and right sides of the conveyor belt, further including sliding holes transversely arranged respectively on the two fixing blocks, sliding square rods respectively slidably arranged in the sliding holes on the two fixing blocks, a clamping plate arranged at one end of the sliding square rod, longitudinal sliding holes longitudinally arranged respectively at the upper ends of the two fixing blocks and communicated with the sliding holes at the lower ends, longitudinal square rods respectively liftably arranged in the longitudinal sliding holes on the two fixing blocks, guiding side grooves respectively arranged on the two fixing blocks outside the longitudinal square rods and communicated with the longitudinal sliding holes, a guiding side plate with one end arranged on the longitudinal square rod and the other end in clearance fit with the guiding side groove, a tension spring arranged between the lower end of the guiding side plate and the fixing block in the guiding side groove for pulling the lower end of the longitudinal square rod to abut against the upper end surface of the sliding square rod, and a contact member arranged between the lower end of the longitudinal square rod and the upper end of the sliding square rod for increasing the friction between the longitudinal square rod and the sliding square rod when the lower end of the longitudinal square rod abuts against the upper end surface of the sliding square rod. The upper end of the longitudinal square rod passes through the longitudinal sliding hole and is located above the fixing block, and the sliding hole is a square hole.

[0007] A further improvement is that: a driving circular plate facilitating hand pulling of the longitudinal square rod is arranged at the upper end of the longitudinal square rod.

[0008] A further improvement is that: a rotating column is arranged at the upper end of the longitudinal square rod, the driving circular plate is rotatably arranged on the rotating column, there is a clearance fit between the driving circular plate and the rotating column, and a limiting plate for restricting the driving circular plate from rising on the rotating column is fixedly arranged at the upper end of the rotating column.

[0009] A further improvement is that: two limiting columns are arranged on the upper end surfaces of the two fixing blocks on the left and right sides of the longitudinal square rod, the two limiting columns are symmetrically arranged on the left and right sides of the longitudinal square rod, and two extending clamping plates are arranged on the driving circular plate, and the two extending clamping plates are arranged at the front and rear ends of the driving circular plate.

[0010] A further improvement is that: the contact member includes an elastic contact plate arranged on the upper end surface of the sliding square rod, the elastic contact plate is arranged along the length direction of the sliding square rod, and an extrusion pointed tooth is arranged on the lower end surface of the longitudinal square rod.

[0011] A further improvement is that: the elastic contact plate is a rubber plate.

[0012] Further improvements are as follows: An installation slot is formed on the upper end surface of the sliding square rod, and the installation slot is arranged along the length direction of the sliding square rod. Two installation inner holes are formed on the upper end surface of the sliding square rod, and the two installation inner holes communicate with the installation slot. The elastic contact plate is in clearance fit with the installation slot. A fitting hole is formed on the elastic contact plate, and a counterbore communicating with the fitting hole is formed on the upper end surface of the elastic contact plate. An installation bolt is threadedly connected in the installation inner hole on the sliding square rod. The screw part of the installation bolt is in clearance fit with the fitting hole, and the head of the installation bolt is located in the counterbore.

[0013] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: When it is necessary to adjust the position between the two clamping plates to position both sides of the cardboard on the conveyor table, the longitudinal square rod is pulled upward by hand to rise in the longitudinal sliding hole, so that the tension spring is stretched and elastically deformed. At this time, the lower end of the longitudinal square rod no longer abuts against the upper end surface of the sliding square rod, and the sliding square rod can be pushed to drive the clamping plate to move horizontally in the sliding hole. After the position adjustment is completed, the pulling of the longitudinal square rod is released, so that the tension spring releases elastic potential energy to drive the lower end of the longitudinal square rod to abut against the upper end surface of the sliding square rod, and the friction between the longitudinal square rod and the sliding square rod is increased through the contact member, thereby restricting the horizontal movement of the sliding square rod. The adjustment of the two clamping plates can be realized without frequently rotating the bolt, and the adjustment speed of the two adjusting plates can be increased.

[0014] Further effect: When the driving circular plate is held and pulled upward to make the longitudinal square rod rise until the extending clamping plate is higher than the two limit posts, the driving circular plate is rotated so that the two extending clamping plates respectively correspond to the upper ends of the two limit posts, and the two extending clamping plates are abutted against the upper end surfaces of the two limit posts. At this time, the holding of the driving circular plate can be released. Through the cooperation of the two extending clamping plates and the two limit posts, there is no need for the hand to continuously lift the driving circular plate upward.

[0015] Further effect: When the tension spring pulls the lower end of the longitudinal square rod to abut against the upper end surface of the sliding square rod, the extrusion teeth are inserted into the elastic contact plate to generate a meshing action, thereby restricting the horizontal sliding of the sliding square rod in the sliding hole.

[0016] Further effect: When it is necessary to replace the elastic contact plate, the installation bolt is screwed out of the installation inner hole by a tool. After the bolt is taken out from the fitting hole, a new elastic contact plate is placed in the installation slot, and the fitting hole of the elastic contact plate is aligned with the position of the installation inner hole. Then the bolt is inserted into the fitting hole and threadedly connected with the installation inner hole. The elastic contact plate is fixed in the installation slot by the head of the installation bolt, and the head of the installation bolt is hidden through the counterbore to prevent the head of the installation bolt from protruding and affecting the horizontal movement of the sliding square rod in the sliding hole. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a partial top view of the transfer table and the fixing block in the present invention;

[0020] Figure 3 corresponds to Figure 1 an enlarged view of part A;

[0021] Figure 4 corresponds to Figure 1 an enlarged view of part B;

[0022] Figure 5 corresponds to Figure 1 an enlarged view of part C;

[0023] Figure 6 corresponds to Figure 1 an enlarged view of part D.

[0024] Explanation of reference numerals: transfer table 1, fixing block 2, sliding hole 3, sliding square rod 4, clamping plate 5, longitudinal sliding hole 6, longitudinal square rod 7, guiding side groove 8, guiding side plate 9, tension spring 10, driving circular plate 11, rotating column 12, limiting plate 13, limiting column 14, extending clamping plate 15, elastic contact plate 16, extrusion pointed teeth 17, installation slot 18, installation inner hole 19, mating hole 20, countersunk hole 21, installation bolt 22. Detailed implementation manners

[0025] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0026] Refer to Figures 1 to 6As shown in the figure, the technical solution adopted in this specific embodiment is as follows: A positioning device for a carton printing machine includes a conveying table 1 and two fixing blocks 2 fixedly arranged on the left and right sides of the conveyor belt. It also includes sliding holes 3 respectively opened on the two fixing blocks 2 and arranged horizontally, sliding square rods 4 respectively slidably arranged in the sliding holes 3 on the two fixing blocks 2, a clamping plate 5 arranged at one end of the sliding square rod 4, longitudinal sliding holes 6 respectively longitudinally opened at the upper ends of the two fixing blocks 2 and communicating with the sliding holes 3 at the lower ends, longitudinal square rods 7 respectively liftably arranged in the longitudinal sliding holes 6 on the two fixing blocks 2, guiding side grooves 8 respectively opened on the two fixing blocks 2 outside the longitudinal square rods 7 and communicating with the longitudinal sliding holes 6, guiding side plates 9 with one end arranged on the longitudinal square rods 7 and the other end in clearance fit with the guiding side grooves 8, a tension spring 10 arranged between the lower end of the guiding side plate 9 and the fixing block 2 in the guiding side groove 8 for pulling the lower end of the longitudinal square rod 7 to abut against the upper end surface of the sliding square rod 4, and a contact member arranged between the lower end of the longitudinal square rod 7 and the upper end of the sliding square rod 4 for increasing the friction force between the longitudinal square rod 7 and the sliding square rod 4 when the lower end of the longitudinal square rod 7 abuts against the upper end surface of the sliding square rod 4. The upper end of the longitudinal square rod 7 passes through the longitudinal sliding hole 6 and is located above the fixing block 2, and the sliding hole 3 is a square hole.

[0027] A driving circular plate 11 for facilitating the hand to pull the longitudinal square rod 7 is arranged at the upper end of the longitudinal square rod 7.

[0028] A rotating column 12 is arranged at the upper end of the longitudinal square rod 7. The driving circular plate 11 is rotatably arranged on the rotating column 12, and there is a clearance fit between the driving circular plate 11 and the rotating column 12. A limiting plate 13 for restricting the driving circular plate 11 from rising on the rotating column 12 is fixedly arranged at the upper end of the rotating column 12.

[0029] Two limiting columns 14 are arranged on the upper end surfaces of the two fixing blocks 2 on the left and right sides of the longitudinal square rod 7. The two limiting columns 14 are symmetrically arranged on the left and right sides of the longitudinal square rod 7. Two extending clamping plates 15 are arranged on the driving circular plate 11, and the two extending clamping plates 15 are arranged at the front and rear ends of the driving circular plate 11.

[0030] The contact member includes an elastic contact plate 16 arranged on the upper end surface of the sliding square rod 4. The elastic contact plate 16 is arranged along the length direction of the sliding square rod 4, and an extrusion pointed tooth 17 is arranged on the lower end surface of the longitudinal square rod 7.

[0031] The elastic contact plate 16 is a rubber plate. The rubber can adopt TPU or EVA or other types of rubber materials.

[0032] The upper end surface of the sliding square rod 4 is provided with an installation slot 18, the installation slot 18 is arranged along the length direction of the sliding square rod 4, two installation inner holes 19 are opened on the upper end surface of the sliding square rod 4, the two installation inner holes 19 are communicated with the installation slot 18, the elastic contact plate 16 is in clearance fit with the installation slot 18, a matching hole 20 is opened on the elastic contact plate 16, a counterbore 21 is opened on the upper end surface of the elastic contact plate 16 and communicated with the matching hole 20, an installation bolt 22 is threadedly connected in the installation inner hole 19 on the sliding square rod 4, the screw part of the installation bolt 22 is in clearance fit with the matching hole 20, and the head of the installation bolt 22 is located in the counterbore 21.

[0033] The working principle of the utility model: When it is necessary to adjust the position between the two clamping plates 5 to position the two sides of the cardboard on the conveying table 1, the longitudinal square rod 7 is pulled upward by hand to rise in the longitudinal sliding hole 6, so that the tension spring 10 is stretched and elastically deformed. At this time, the lower end of the longitudinal square rod 7 no longer abuts against the upper end surface of the sliding square rod 4, and the sliding square rod 4 can be pushed to drive the clamping plate 5 to move horizontally in the sliding hole 3. After the position adjustment is completed, the pulling of the longitudinal square rod 7 is released, so that the tension spring 10 releases elastic potential energy to drive the lower end of the longitudinal square rod 7 to abut against the upper end surface of the sliding square rod 4, and the extrusion teeth 17 are inserted into the elastic contact plate 16 to generate a meshing action, thereby restricting the horizontal sliding of the sliding square rod 4 in the sliding hole 3, improving the friction force between the longitudinal square rod 7 and the sliding square rod 4, and thus restricting the horizontal movement of the sliding square rod 4. The adjustment of the two clamping plates 5 can be realized without frequently rotating the bolt, and the adjustment speed of the two adjusting plates can be increased;

[0034] When the driving circular plate 11 is held and pulled upward to make the longitudinal square rod 7 rise until the extending clamping plate 15 is higher than the two limit posts 14, the driving circular plate 11 is rotated so that the two extending clamping plates 15 are respectively corresponding to the upper ends of the two limit posts 14, and the two extending clamping plates 15 are abutted against the upper end surfaces of the two limit posts 14. At this time, the holding of the driving circular plate 11 can be released. Through the cooperation of the two extending clamping plates 15 and the two limit posts 14, there is no need to continuously lift the driving circular plate 11 by hand;

[0035] When it is necessary to replace the elastic contact plate 16, the installation bolt 22 is screwed out of the installation inner hole 19 by a tool. After the bolt is taken out from the matching hole 20, a new elastic contact plate 16 is placed in the installation slot 18, and the position of the matching hole 20 of the elastic contact plate 16 is corresponding to the installation inner hole 19. Then the bolt is inserted into the matching hole 20 and threadedly connected with the installation inner hole 19. The elastic contact plate 16 is fixed in the installation slot 18 by the head of the installation bolt 22, and the head of the installation bolt 22 is hidden through the counterbore 21 to prevent the head of the installation bolt 22 from protruding and affecting the horizontal movement of the sliding square rod 4 in the sliding hole 3.

[0036] What the present utility model aims to protect is the structure of the product. The models of each component are not the content protected by the present utility model and are also well-known technologies. Any component that can achieve the above functions of the present utility model on the market can be selected and applied as a positioning device for a carton printing machine. Therefore, parameters such as the model of the component are not described in detail in the present utility model. The contribution of the present utility model lies in the scientific combination of each component.

[0037] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and descriptions only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents. Where the present utility model is not described in detail, it is all well-known technologies to those skilled in the art.

Claims

1. A positioning device for a carton printing machine, comprising a conveying platform and two fixed blocks fixedly arranged on the left and right sides of the conveying platform, characterized in that: The invention also includes sliding holes respectively opened on the two fixed blocks and arranged transversely, sliding square rods respectively slidably arranged on the two fixed blocks and located in the sliding holes, a clamping plate arranged at one end of the sliding square rod, longitudinal sliding holes respectively opened longitudinally on the upper ends of the two fixed blocks and connected to the sliding holes at the lower ends, longitudinal square rods respectively lifted and arranged on the two fixed blocks and located in the longitudinal sliding holes, guide side grooves respectively opened on the two fixed blocks and located outside the longitudinal square rods and connected to the longitudinal sliding holes, and a clamping plate arranged at one end of the sliding square rod. A guide side plate on the longitudinal square rod and the other end of which is gap-matched with the guide side groove, a tension spring arranged between the lower end of the guide side plate and the fixed block and located in the guide side groove for pulling the lower end of the longitudinal square rod to press against the upper end surface of the sliding square rod, a contact piece arranged between the lower end of the longitudinal square rod and the upper end of the sliding square rod for increasing the friction between the longitudinal square rod and the sliding square rod when the lower end of the longitudinal square rod presses against the upper end surface of the sliding square rod, the upper end of the longitudinal square rod passes through the longitudinal sliding hole and is located above the fixed block, and the sliding hole is a square hole.

2. A carton printing machine positioning device according to claim 1, characterized in that: The upper end of the longitudinal square rod is provided with a driving circular plate which is convenient for the hand to pull the longitudinal square rod.

3. A carton printing machine positioning device according to claim 2, characterized in that: A rotating column is arranged at the upper end of the longitudinal square rod, and the driving circular plate is rotatably arranged on the rotating column. There is a clearance fit between the driving circular plate and the rotating column, and a limiting plate for limiting the rising of the driving circular plate on the rotating column is fixedly arranged at the upper end of the rotating column.

4. A carton printing machine positioning device according to claim 3, characterized in that: The upper end surfaces of the two fixed blocks are located on the left and right sides of the longitudinal square rod, and two limit columns are arranged on the left and right sides of the longitudinal square rod. The two limit columns are symmetrically arranged on the left and right sides of the longitudinal square rod. Two extension clamping plates are arranged on the driving circular plate, and the two extension clamping plates are arranged on the front and rear ends of the driving circular plate.

5. A carton printing machine positioning device according to claim 1, characterized in that: The contact member comprises an elastic contact plate arranged on the upper end surface of the sliding square rod, the elastic contact plate is arranged along the length direction of the sliding square rod, and the lower end surface of the longitudinal square rod is provided with extrusion sharp teeth.

6. A carton printing machine positioning device according to claim 5, characterized in that: The elastic contact plate is a rubber plate.

7. A carton printing machine positioning device according to claim 5, characterized in that: The upper end surface of the sliding square rod is provided with a mounting groove, and the mounting groove is arranged along the length direction of the sliding square rod. The upper end surface of the sliding square rod is provided with two mounting inner holes, and the two mounting inner holes are connected with the mounting groove. The elastic contact plate is clearance-matched with the mounting groove. A matching hole is provided on the elastic contact plate. A countersunk hole is provided on the upper end surface of the elastic contact plate and is connected with the matching hole. The sliding square rod is threadedly connected with a mounting bolt located in the mounting inner hole, and the screw portion of the mounting bolt is clearance-matched with the matching hole, and the head of the mounting bolt is located in the countersunk hole.

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