Finished product detection device of bag making machine

Abstract

The utility model relates to the field of bag making, in particular to a finished product detection device of a bag making machine, which is characterized in that a packaging bag is wound by a winding roller after being subjected to heat sealing by a heat sealing machine, a square tube is arranged above a winding path of the packaging bag along the direction parallel to the axis of the winding roller, and a screw rod is coaxially arranged in a tube cavity of the square tube; a nut seat on the lead screw is in sliding fit with the inner wall of the square tube in the length direction, a first magnetic block is installed on the nut seat, a sliding seat in sliding fit with the square tube is arranged outside the square tube, a second magnetic block in magnetic attraction fit with the first magnetic block is installed on the sliding seat, and a detection probe used for detecting patterns on the surface of the packaging bag is fixed to the sliding seat. According to the utility model, the detection position of the detection probe can be quickly adjusted.

Description

Technical Field

[0001] The utility model relates to the field of bag making, in particular to a finished product detection device for a bag making machine. Background Art

[0002] The bag making machine is used to make various plastic packaging bags or other material packaging bags. It usually has slitting, heat sealing and winding functions. The existing bag making machine, as described in the application number "202110931796.2", is mainly composed of a storage device, a stepping device, a frequency conversion device, a bag-making device, a heat-sealing cutter and a control device. The storage device stores a corresponding amount of raw materials, the stepping device drives the raw materials, the frequency conversion device drives the heat-sealing cutter, the bag-making device makes bags after producing a fixed number of bags, and the heat-sealing cutter controls its temperature through a thermostat to seal and cut the raw materials. The control device coordinates the actions of all aspects as a whole, and the packaging bags after heat sealing are rolled and fixed.

[0003] After the existing bag-making machine heat-seals the packaging bag, the pattern in the heat-sealed area of ​​the packaging bag is easily deformed under the influence of high temperature. In order to avoid waste due to pattern deformation, a detection probe is usually fixed at the downstream end of the heat-sealing machine to perform real-time visual inspection of the pattern in the heat-sealed area. Since the products produced on the same bag-making machine are often replaced, the heat-sealed area of ​​the packaging bag will change after the production product is changed, and the detection position of the detection probe must also change accordingly; each time the detection probe position is changed, it needs to be disassembled and re-fixed in the new position, which is time-consuming and labor-intensive, and therefore needs to be solved urgently. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a finished product detection device for a bag making machine. The utility model can realize the rapid adjustment of the detection position of the detection probe.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A finished product detection device for a bag making machine, wherein the packaging bag is rolled up by a winding roller after being heat-sealed by a heat sealing machine, a square tube is arranged above the winding path of the packaging bag in a direction parallel to the axis of the winding roller, a screw rod is coaxially arranged in the tube cavity of the square tube, and a nut seat on the screw rod slides with the inner wall of the square tube along the length direction, a first magnetic block is installed on the nut seat, a sliding seat slidingly matched with the square tube is arranged outside the square tube, a second magnetic block magnetically matched with the first magnetic block is installed on the sliding seat, and a detection probe for detecting the surface pattern of the packaging bag is fixed on the sliding seat.

[0007] As a further solution of the utility model: the length of the sliding seat is equal to the length of the first magnetic block, the sliding seat is arranged on the outer ring of the square tube, the sliding seat is arranged in a U shape, and its opening is arranged downward, and the square tube is installed with an L-shaped fixed arm at the opening corresponding to the sliding seat, and the square tube is connected and fixed to the heat sealing machine through the fixed arm.

[0008] As a further solution of the utility model: a positioning groove is opened in the seat body of the sliding seat along the length direction of the square tube, and the second magnetic block is inserted into the positioning groove along the horizontal direction and corresponds to the position of the first magnetic block along the vertical direction.

[0009] As a further solution of the utility model: the end of the screw rod extends outside the square tube, and an adjusting hand wheel is coaxially mounted on the end of the screw rod.

[0010] As a further solution of the utility model: the sliding seat is connected and fixed to the detection probe through an adjusting arm, and the adjusting arm is a bendable multi-link structure.

[0011] As a further solution of the utility model: the square tube, the nut seat and the sliding seat are all made of polytetrafluoroethylene.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model installs a square tube between the winding roller and the heat sealing machine, and after the screw is installed in the square tube, the screw can be rotated to drive the nut seat of the screw to move linearly along the length direction of the square tube. While the nut seat moves linearly, the magnetic attraction of the first magnetic block and the second magnetic block can drive the sliding seat and the detection probe to move synchronously, thereby realizing the rapid adjustment of the detection position of the detection probe; the tube body of the square tube itself can be used as a guide rail mechanism to guide the nut seat, and the screw is built into the square tube. The overall structure is compact and the position adjustment accuracy is high. It is particularly suitable for use in occasions such as the utility model where high-precision displacement adjustment of the detection probe is required.

[0014] 2. The sliding seat of the utility model is arranged in a U shape, and its bottom opening avoids the position of the fixed arm of the square tube to avoid position interference between the sliding seat and the fixed arm during sliding; the arrangement of the positioning groove in the sliding seat can directly plug and fix the first magnetic block while keeping a certain distance between the first magnetic block and the second magnetic block; the sleeve arrangement of the sliding seat and the square tube can realize the integrated quick installation and disassembly of the sliding seat and the detection probe.

[0015] 3. The utility model has an adjusting hand wheel installed at the end of the screw rod, and the position of the detection probe can be adjusted by rotating the adjusting hand wheel on the side, thereby realizing manual rapid adjustment; the square tube, nut seat and sliding seat are all made of polytetrafluoroethylene material, which will not be affected by the magnetic force of the magnetic block, and the dynamic friction coefficient between each other is low, which is convenient for relative sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] In the figure:

[0018] 1. Heat sealer; 11. Fixed arm;

[0019] 2. square tube; 21. screw rod; 211. adjusting hand wheel; 22. nut seat; 221. first magnetic block;

[0020] 3. Sliding seat; 31. Positioning slot; 32. Second magnetic block; 33. Adjusting arm; 34. Detection probe;

[0021] 4. Winding roller. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1 In an embodiment of the utility model, a finished product detection device for a bag making machine includes a heat sealer 1 and a winding roller 4 arranged in sequence along the conveying direction of the packaging bag. The packaging bag is rolled up by the winding roller 4 after being heat-sealed by the heat sealer 1.

[0024] A square tube 2 is fixed on the frame of the heat sealing machine 1 through a fixed arm 11, and the square tube 2 is arranged in a direction parallel to the winding roller 4. The square tube 2 is a hollow tube with a square cross section, and a screw rod 21 is coaxially fixed in the square tube 2. The nut seat 22 of the screw rod 21 corresponds to the cross-sectional shape of the lumen of the square tube 2. When the screw rod 21 is working, the nut seat 22 and the lumen of the square tube 2 slide and cooperate along the length direction.

[0025] The screw rod 21 can be driven manually or electrically. Preferably, an adjusting hand wheel 211 is coaxially installed at one end of the screw rod 21 outside the square tube 2, and the screw rod 21 is controlled to rotate by adjusting the hand wheel 211.

[0026] The fixed arm 11 is arranged in an L shape, with its short arm arranged at the bottom of the square tube 2 in the vertical direction, and its long arm arranged in a horizontal cantilever shape. The U-shaped sliding seat 3 is sleeved on the outer ring of the square tube 2 and slides with the square tube 2 along the length direction. The opening of the sliding seat 3 is downward for the fixed arm 11 to be connected and fixed to the square tube 2. The sliding seat 3, the square tube 2 and the nut seat 22 are preferably made of polytetrafluoroethylene. In order to reduce the friction between the sliding seat 3 and the square tube 2, an oil filling hole can be opened on the sliding seat 3, and the sliding friction can be reduced by injecting lubricating oil between the sliding seat 3 and the square tube 2.

[0027] A positioning groove 31 is provided at the top of the sliding seat 3 along the length direction of the square tube 2, and a second magnetic block 32 is inserted into the positioning groove 31. After the second magnetic block 32 is inserted into the positioning groove 31, the second magnetic block 32 can be locked by inserting a positioning pin along the vertical direction.

[0028] A first magnetic block 221 is fixed on the top of the nut seat 22, and the distance between the first magnetic block 221 and the second magnetic block 32 is no more than 25 mm. When the screw rod 21 rotates, the nut seat 22 slides linearly in the square tube 2, and through the magnetic cooperation between the first magnetic block 221 and the second magnetic block 32, the nut seat 22 drives the sliding seat 3 to slide along the length direction of the square tube 2 to adjust the position of the sliding seat 3.

[0029] An adjusting arm 33 is installed on the sliding seat 3. The adjusting arm 33 is preferably a multi-link structure that can produce multi-directional bending movements. The detection probe 34 is fixed to the end of the adjusting arm 33 and adjusts its position with the adjusting arm 33 until the probe is aligned with the bag surface of the packaging bag to detect the pattern on the surface of the packaging bag.

[0030] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0031] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

Claims

1. A finished product detection device for a bag making machine, characterized in that: The packaging bag is heat-sealed by a heat-sealing machine (1) and then rolled up by a winding roller (4); a square tube (2) is arranged above a winding path of the packaging bag in a direction parallel to the axis of the winding roller (4); a screw rod (21) is coaxially arranged in a tube cavity of the square tube (2); a nut seat (22) on the screw rod (21) is slidably matched with the inner wall of the square tube (2) along the length direction; a first magnetic block (221) is installed on the nut seat (22); a sliding seat (3) slidably matched with the square tube (2) is arranged outside the square tube (2); a second magnetic block (32) magnetically matched with the first magnetic block (221) is installed on the sliding seat (3); and a detection probe (34) for detecting a surface pattern of the packaging bag is fixed on the sliding seat (3).

2. A finished product detection device for a bag making machine according to claim 1, characterized in that: The length of the sliding seat (3) is equal to the length of the first magnetic block (221); the sliding seat (3) is sleeved on the outer ring of the square tube (2); the sliding seat (3) is arranged in a U shape, with its opening facing downward; an L-shaped fixing arm (11) is installed on the square tube (2) at the opening corresponding to the sliding seat (3); the square tube (2) is connected and fixed to the heat sealing machine (1) via the fixing arm (11).

3. A finished product detection device for a bag making machine according to claim 1 or 2, characterized in that: A positioning groove (31) is provided in the seat body of the sliding seat (3) along the length direction of the square tube (2); the second magnetic block (32) is inserted into the positioning groove (31) along the horizontal direction and corresponds to the first magnetic block (221) in the vertical direction.

4. A finished product detection device for a bag making machine according to claim 1 or 2, characterized in that: The end of the screw rod (21) extends outside the square tube (2), and an adjusting hand wheel (211) is coaxially mounted on the end of the screw rod (21).

5. A finished product detection device for a bag making machine according to claim 1 or 2, characterized in that: The sliding seat (3) is connected and fixed to the detection probe (34) via an adjusting arm (33), and the adjusting arm (33) is a bendable multi-link structure.

6. A finished product detection device for a bag making machine according to claim 1 or 2, characterized in that: The square tube (2), the nut seat (22) and the sliding seat (3) are all made of polytetrafluoroethylene.

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