A positioning structure for processing bags

Abstract

The utility model relates to the technical field of bag processing, and in particular to a positioning structure for processing bags, comprising a positioning fixture and a pressure-maintaining fixture, the pressure-maintaining fixture comprising a pressure-maintaining bottom plate for supporting a box shell and a middle frame, a pressing plate capable of longitudinal movement being arranged above the pressure-maintaining bottom plate; a plurality of pressing installation holes are formed on the bottom surface of the pressing plate, pressing blocks of different sizes are installed on the bottom of the pressing plate through the pressing installation holes, and a raised pressing strip is formed on the bottom surface of more than one pressing block; after the middle frame coated with glue is bonded to the box shell, the middle frame is placed on the pressure-maintaining bottom plate before bonding, and the pressing blocks can be installed at corresponding positions according to the pressing installation holes, the installed pressing blocks are vertically aligned with the concave surface of the top surface of the box shell, and then the pressing plate is pressed down to make the box shell and the middle frame fit tightly; the pressing blocks are bonded to the concave surface of the top surface of the box shell, so that most areas of the box shell can be bonded to the glue area of ​​the middle frame, thereby ensuring the stability of bonding between the box shell and the middle frame, and the bonding quality is better.

Description

Technical Field

[0001] The utility model relates to the technical field of bag processing, in particular to a positioning structure used for processing bags. Background Art

[0002] Luggage is a common item in life. Travel luggage is often used by people. The shell materials of luggage are different. Generally, plastic luggage is formed by injection molding. After the shell of the luggage is formed, it needs to be trimmed and punched, and then processed by luggage engraving and milling machines. When inspecting the luggage, workers need to observe the outside of the luggage, but due to the huge size of the luggage, it is very inconvenient to observe. Each luggage also needs to be turned, which makes the workers' work very cumbersome.

[0003] Among them, the utility model with application number CN202321837036.6 provides a positioning device for processing musical instrument cases and bags, which relates to the field of musical instrument case processing. The positioning device for processing musical instrument cases and bags comprises a base, a turntable is installed at the upper end of the base, the bottom end of the turntable is plugged into the center of the circle on the upper surface of the base, the turntable can rotate relative to the base, a motor A is fixedly installed in the base, the output shaft of motor A can drive the turntable to rotate, a mounting frame is provided on the turntable, two vertical poles are fixedly installed on the mounting frame, the upper and lower ends of the vertical poles both pass through the turntable, the bottom ends of the vertical poles are fixed to the turntable, a workbench is provided above the mounting frame, the upper ends of the two vertical poles are fixed to the bottom surface of the workbench after passing through the mounting frame, and a motor B is fixedly installed in the mounting frame. The positioning device for processing musical instrument cases and bags achieves the effect of clamping the case and bag and making it rotate evenly by setting motor A, motor B, gears and rubber wheels, and the worker who inspects the case and bag can observe without manually rotating the case and bag.

[0004] After the upper shell and the middle frame of the luggage are glued together with glue, they need to be left to stand still. During the standing time, in order to ensure a higher fit between the upper shell and the middle frame, a pressing plate is usually used to improve the fit. Most of the existing pressing structures have a low contact area when pressing the upper shell. Different luggage have different outer shell structures. Some outer shells have multiple concave surfaces, while the pressing plate can only be pressed on flat surfaces, resulting in the concave surfaces being unable to contact the pressing plate, causing some areas to be unable to be pressed, affecting the bonding effect of the glue. Utility Model Content

[0005] The utility model aims to provide a positioning structure for processing bags in view of the deficiencies of the prior art.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A positioning structure for processing bags comprises a positioning fixture and a pressure-maintaining fixture. The pressure-maintaining fixture comprises a pressure-maintaining bottom plate for supporting a box shell and a middle frame. A pressing plate capable of longitudinal movement is arranged above the pressure-maintaining bottom plate. The pressing plate can be close to the pressure-maintaining bottom plate to press the box shell and the middle frame against each other. A plurality of pressing installation holes are formed on the bottom surface of the pressing plate. Pressing blocks of different sizes that can be pressed into the concave surface of the box shell are installed on the bottom of the pressing plate through the pressing installation holes. A raised pressing strip is formed on the bottom surface of at least one of the pressing blocks.

[0008] Furthermore: the pressure-maintaining bottom plate is formed with a return groove for positioning the middle frame.

[0009] Furthermore: there are multiple return grooves, and the distance between two adjacent return grooves is equidistantly enlarged or equidistantly reduced.

[0010] Further: the pressing plate is provided with a longitudinal driving member for driving the pressing plate to move longitudinally, and the longitudinal driving member includes a supporting column for supporting the pressing plate.

[0011] Furthermore: the longitudinal driving member also includes a longitudinally arranged lifting cylinder, the driving end of the lifting cylinder is connected to the support column, and the top of the support column is connected to the bottom surface of the pressing plate.

[0012] Further: the pressing block is formed with a pressing connection hole that matches the pressing installation hole.

[0013] Furthermore: a rounded surface capable of matching with the edge of the box shell is formed between the pressing block and the pressing strip.

[0014] Furthermore: the positioning fixture includes a positioning base plate, the positioning base plate is installed with a plurality of positioning bars for supporting the middle frame, and the top of the positioning bar is formed with a positioning groove along the length direction for the middle frame to be embedded and positioned.

[0015] Furthermore: the positioning base plate is also equipped with a corner cylinder for positioning the middle frame on the positioning strip.

[0016] Further: the positioning base plate is formed with multiple first adjustment holes for installing the positioning strips and second adjustment holes for installing the corner cylinders. The positioning strips can be installed at different positions of the positioning base plate through the first adjustment holes according to the size of the middle frame, and the corner cylinders can be installed at different positions of the positioning base plate through the second adjustment holes according to the size of the middle frame.

[0017] The beneficial effects of the utility model are as follows: after the middle frame coated with glue is bonded to the box shell, the middle frame is placed on the pressure-maintaining bottom plate before pressing, and a pressing block can be installed at a corresponding position according to the pressing installation hole. The installed pressing block is vertically aligned with the concave surface of the top surface of the box shell, and then the pressing plate is pressed down to make the box shell and the middle frame fit tightly; the pressing block is bonded to the concave surface of the top surface of the box shell, so that most areas of the box shell can be bonded to the glue area of ​​the middle frame, thereby ensuring the stability of the bonding between the box shell and the middle frame, and the bonding quality is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the positioning fixture.

[0019] Figure 2 This is a schematic diagram of the structure of the pressure-maintaining fixture.

[0020] Figure 3 Schematic diagram of the structure of the pressed plate.

[0021] Reference numerals include:

[0022] 1-Positioning fixture,

[0023] 11-positioning base plate, 12-positioning strip, 13-positioning groove, 14-angle cylinder, 15-first adjustment hole,

[0024] 16- Second adjustment hole,

[0025] 2-Pressure holding fixture,

[0026] 20-pressure-maintaining bottom plate, 21-pressing plate, 22-pressing mounting hole, 23-pressing block, 24-pressing strip,

[0027] 25-return groove, 26-support column, 27-lifting cylinder, 28-pressed connection hole, 29-rounded surface. DETAILED DESCRIPTION

[0028] The utility model is described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-3 As shown, a positioning structure for processing bags includes a positioning fixture 1 and a pressure-maintaining fixture 2. The pressure-maintaining fixture 2 includes a pressure-maintaining bottom plate 20 for supporting a box shell and a middle frame. A pressing plate 21 capable of longitudinal movement is arranged above the pressure-maintaining bottom plate 20. The pressing plate 21 can be close to the pressure-maintaining bottom plate 20 to make the box shell and the middle frame close to each other. A plurality of pressing mounting holes 22 are formed on the bottom surface of the pressing plate 21. Pressing blocks 23 of different sizes that can be pressed into the concave surface of the box shell are installed on the bottom of the pressing plate 21 through the pressing mounting holes 22. More than one of the pressing blocks 23 is formed with a raised pressing strip 24 on the bottom surface.

[0030] After the middle frame coated with glue is bonded to the box shell, the middle frame is placed on the pressure-maintaining bottom plate 20 before being pressed. The pressing block 23 can be installed at the corresponding position according to the pressing installation hole 22. The installed pressing block 23 is vertically aligned with the concave surface of the top surface of the box shell. Then the pressing plate 21 is pressed down to make the box shell and the middle frame fit tightly; the pressing block 23 is bonded to the concave surface of the top surface of the box shell, so that most areas of the box shell can be bonded to the glue area of ​​the middle frame, thereby ensuring the stability of the bonding between the box shell and the middle frame, and the bonding quality is better.

[0031] The pressure-maintaining bottom plate 20 is formed with a return groove 25 for positioning the middle frame. Since the middle frame is in a U-shaped structure, the return groove can be used to position and fit the bottom surface of the middle frame to prevent the middle frame from shifting laterally.

[0032] Preferably, there are multiple return grooves 25, and the distance between two adjacent return grooves 25 is equidistantly enlarged or equidistantly reduced. The middle frame can be positioned by placing it into the return groove 25 of the corresponding size according to the size of the middle frame. Middle frames of various sizes can be positioned, and the practicality is further improved.

[0033] The pressing plate 21 is provided with a longitudinal driving member for driving the pressing plate 21 to move longitudinally, and the longitudinal driving member includes a support column 26 for supporting the pressing plate 21, and the longitudinal driving member also includes a longitudinally arranged lifting cylinder 27, the driving end of the lifting cylinder 27 is connected to the support column 26, and the top of the support column 26 is connected to the bottom surface of the pressing plate 21. After the middle frame is placed in the return groove 25, the lifting cylinder 27 can drive the pressing plate 21 to press down, so that the pressing plate 21 tightly fits the box shell and the middle frame, ensuring that the glue tightly fits the box shell and the middle frame.

[0034] Preferably, there are multiple lifting cylinders 27, which are respectively arranged on the periphery of the return groove 25. Multiple lifting cylinders 27 rise and fall simultaneously, so that the pressing plate 21 can be stably lifted and lowered, and the pressing plate 21 can smoothly fit the box shell and the middle frame.

[0035] A pressing installation hole 22 is formed longitudinally through the pressing plate 21, and a pressing block 23 is formed with a pressing connection hole 28 that cooperates with the pressing installation hole 22. The pressing block 23 is installed on the bottom surface of the pressing plate 21 through the pressing connection hole 28. According to the different concave positions of the box shell, corresponding pressing blocks 23 can be installed in the corresponding positions of the pressing connection holes 28, so that after the pressing plate 21 is pressed down, the pressing block 23 can cooperate with the concave surface of the box shell, so that most areas of the box shell can be bonded with the glue area of ​​the middle frame, thereby ensuring the stability of the bonding between the box shell and the middle frame, and the bonding quality is better.

[0036] Preferably, a rounded surface 29 that can cooperate with the edge of the box shell is formed between the pressing block 23 and the pressing strip 24. The rounded surface 29 can match the edge of the box shell. Since the edge of the box shell is the rounded surface 29, when the pressing plate 21 is pressed down, the rounded surface 29 between the pressing block 23 and the pressing strip 24 and the edge of the box shell can prevent the box shell from lateral displacement, thereby ensuring the stability of the pressing.

[0037] The positioning fixture 1 includes a positioning base plate 11, on which a plurality of positioning bars 12 for supporting the middle frame are installed. A positioning groove 13 for the middle frame to be embedded and positioned is formed along the length direction at the top of the positioning bar 12. Before gluing the middle frame, it needs to be positioned. The middle frame is embedded and positioned in the positioning groove 13 of the positioning bar 12 of the positioning base plate 11 to prevent the middle frame from lateral displacement. The middle frame can then be glued.

[0038] Furthermore, the positioning base plate 11 is also equipped with a corner cylinder 14 for positioning the middle frame on the positioning strip 12. After the middle frame is engaged and positioned in the positioning groove 13 of the positioning strip 12 of the positioning base plate 11, the driving end of the corner cylinder 14 rotates, and the piston rod of the corner cylinder 14 is pressed down to further fit the middle frame with the positioning groove 13 of the positioning strip 12, thereby further improving the positioning stability of the middle frame and preventing the middle frame from shifting during glue coating.

[0039] The positioning base plate 11 is formed with a plurality of first adjustment holes 15 for installing the positioning strips 12 and a second adjustment hole 16 for installing the corner cylinder 14. The positioning strips 12 can be installed at different positions of the positioning base plate 11 through the first adjustment holes 15 according to the size of the middle frame, and the corner cylinder 14 can be installed at different positions of the positioning base plate 11 through the second adjustment holes 16 according to the size of the middle frame, so that the positioning base plate 11 can support and position middle frames of different sizes, and the practicality is further improved.

[0040] In summary, it can be seen that the utility model has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0041] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A positioning structure for processing bags, comprising a positioning fixture and a pressure-maintaining fixture, characterized in that: The pressure-maintaining fixture includes a pressure-maintaining bottom plate for supporting the box shell and the middle frame, a pressing plate that can move longitudinally is arranged above the pressure-maintaining bottom plate, and the pressing plate can be close to the pressure-maintaining bottom plate to press the box shell and the middle frame tightly against each other; a plurality of pressing mounting holes are formed on the bottom surface of the pressing plate, and pressing blocks of different sizes that can be pressed into the concave surface of the box shell are installed on the bottom of the pressing plate through the pressing mounting holes, and a raised pressing strip is formed on the bottom surface of at least one of the pressing blocks.

2. A positioning structure for processing bags according to claim 1, characterized in that: The pressure-maintaining bottom plate is formed with a return groove for positioning the middle frame.

3. A positioning structure for processing bags according to claim 2, characterized in that: There are multiple return grooves, and the distance between two adjacent return grooves is equidistantly enlarged or equidistantly reduced.

4. A positioning structure for processing bags according to claim 3, characterized in that: The pressing plate is provided with a longitudinal driving member for driving the pressing plate to move longitudinally, and the longitudinal driving member includes a supporting column for supporting the pressing plate.

5. A positioning structure for processing bags according to claim 4, characterized in that: The longitudinal driving member also includes a longitudinally arranged lifting cylinder, the driving end of the lifting cylinder is connected to the support column, and the top of the support column is connected to the bottom surface of the pressing plate.

6. A positioning structure for processing bags according to claim 5, characterized in that: The pressing block is formed with a pressing connection hole which matches the pressing installation hole.

7. The positioning structure for processing bags according to claim 1, characterized in that: A rounded surface that can match with the edge of the box shell is formed between the pressing block and the pressing strip.

8. The positioning structure for processing bags according to claim 1, characterized in that: The positioning fixture comprises a positioning base plate, a plurality of positioning bars for supporting the middle frame are installed on the positioning base plate, and a positioning groove for the middle frame to be embedded and positioned is formed on the top of the positioning bar along the length direction.

9. A positioning structure for processing bags according to claim 8, characterized in that: The positioning base plate is also equipped with a corner cylinder for positioning the middle frame on the positioning strip.

10. A positioning structure for processing bags according to claim 9, characterized in that: The positioning base plate is formed with multiple first adjustment holes for installing positioning strips and second adjustment holes for installing corner cylinders. The positioning strips can be installed at different positions of the positioning base plate through the first adjustment holes according to the size of the middle frame, and the corner cylinders can be installed at different positions of the positioning base plate through the second adjustment holes according to the size of the middle frame.

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