Packing belt guiding and limiting device of packer

Abstract

The packing belt guiding and limiting device of the packing machine comprises a protection structure, the protection structure comprises a bottom plate and a protection cover, the bottom plate is fixedly installed on the side face of a main body of the packing machine, a belt reel rotating shaft is rotatably installed on the front face of the bottom plate, and a first belt reel baffle is fixedly installed on the belt reel rotating shaft; a packing belt winding drum supporting structure is arranged on the first belt reel baffle, a second belt reel baffle is detachably installed on the belt reel rotating shaft, and a packing belt limiting structure and a guide wheel are further installed on the front face of the bottom plate. According to the packing belt guiding and limiting device of the packing machine, the belt disc, the packing belt limiting structure and the guiding wheel are covered with the protective cover, so that a packing belt can be protected, and the packing belt is prevented from being damaged or broken due to the influence of external factors; according to the packing belt guiding and limiting device of the packing machine, the packing belt winding drum supporting structure is arranged, and the supporting rod can be adjusted to retract inwards or expand outwards, so that the belt disc is matched with various packing belt winding drums of different specifications, and the compatibility of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, specifically to a packaging strap guide and limiting device for a packaging machine. Background Technology

[0002] A strapping machine, also known as a bundling machine or strapping machine, is a mechanical device that uses strapping tape to wrap around the surface of a product or package. It tightens the strapping tape and connects and fixes the two ends by heat-induced melting or by using strapping buckles or other materials. It is widely used in industries such as metal processing, wood processing, electronics manufacturing, and logistics warehousing.

[0003] The strapping tape guide and limiting device is a crucial component of a strapping machine. It primarily consists of a tape reel and various guide rollers, and its function is to guide the strapping tape to the machine's inlet. Currently, the tape reel in existing strapping tape guide and limiting devices is typically located outside the machine, leaving the strapping tape exposed and unprotected. This makes the tape susceptible to damage or breakage due to falling objects or rodent bites. Some devices are housed within the machine's cabinet; however, limited cabinet space usually restricts the installation to smaller tape reels, necessitating frequent tape replacements. Furthermore, tape replacement requires removing the reel from the cabinet, a cumbersome process. Additionally, existing strapping tape guide and limiting devices typically only accommodate a single type of strapping tape roll, resulting in low compatibility.

[0004] To address this problem, we have designed a strapping tape guide and limiting device for a strapping machine. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a strapping tape guide and limiting device for a strapping machine, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a strapping guide and limiting device for a strapping machine, comprising a protective structure, the protective structure comprising a base plate and a protective cover, the base plate being fixedly installed on the side of the main body of the strapping machine, a strapping reel shaft being rotatably installed on the front of the base plate, a first strapping reel baffle being fixedly installed on the strapping reel shaft, a strapping roll support structure being provided on the first strapping reel baffle, a second strapping reel baffle being detachably installed on the strapping reel shaft, and a strapping limiting structure and guide wheels being installed on the front of the base plate;

[0007] Four first positioning posts arranged in a rectangular array are installed on the front side of the base plate near the edge. Four protrusions with the same position distribution as the four first positioning posts are fixed on the inner side of the protective cover. Each protrusion has a positioning hole that can cooperate with the first positioning posts. The protective cover is installed on the base plate through the protrusions, and the base plate and the protective cover are fixed together by two pairs of buckles.

[0008] As a preferred technical solution of this utility model, the packing tape roll support structure includes a slider, a support rod, a first sleeve, a positioning bolt, and a connecting rod. The first tape reel baffle has four radial grooves, and a slider is slidably installed in each groove. The four sliders are arranged in a circular array around the tape reel shaft. A support rod is installed on each of the four sliders. The first sleeve is sleeved on the tape reel shaft and fixed by the positioning bolt. A connecting rod is provided between each of the four support rods and the first sleeve, and the two ends of the connecting rod are rotatably connected to the support rod and the first sleeve, respectively.

[0009] As a preferred technical solution of this utility model, the strapping limit structure is located below the two strapping disc baffles. The strapping limit structure includes a cylinder, a second sleeve, an elastic rod, and a ring. The cylinder is fixed on the base plate, the second sleeve is sleeved on the cylinder and fixed by a nut screw, one end of the elastic rod is fixed on the second sleeve, and the other end is connected to the ring.

[0010] As a preferred embodiment of this utility model, the guide wheel is located below the packing strap limiting structure, and the guide wheel is rotatably mounted on the front of the base plate via a bearing seat.

[0011] As a preferred technical solution of this utility model, two radial second positioning posts are connected to the side of the disc shaft near the end. The second disc baffle is sleeved on the disc shaft. An annular protrusion is provided on the back of the second disc baffle. Two positioning grooves are opened on the annular protrusion corresponding to the positions of the two second positioning posts. The end of the disc shaft is provided with an external thread and connected with a nut. The nut is pressed on the front of the second disc baffle.

[0012] As a preferred technical solution of this utility model, the protective cover is a transparent plastic cover, and the packing strap limiting structure, guide wheel, reel shaft and all components thereon are located inside the protective cover.

[0013] As a preferred embodiment of this utility model, the base plate has a through hole at the position corresponding to the inlet of the strapping machine body for the strapping to pass through, and the guide wheel is located directly in front of the through hole.

[0014] As a preferred embodiment of this utility model, the rotating shaft with a disc has multiple equally spaced screw holes, and the first sleeve has a through hole that can be aligned with the screw holes. The screw of the positioning bolt passes through the through hole on the first sleeve and is connected to one of the screw holes on the rotating shaft with a disc.

[0015] Compared with the prior art, the present invention provides a strapping tape guide and limiting device for a strapping machine, which has the following advantages:

[0016] 1. The strapping guide and limiting device of this strapping machine can protect the strapping by setting a protective cover over the outside of the strapping reel, strapping limiting structure and guide wheel, and prevent the strapping from being damaged or broken due to external factors.

[0017] 2. The strapping guide and limiting device of this strapping machine, by setting a strapping roll support structure, can adjust the support rod to retract inward or outward, so that the strapping reel can be adapted to various strapping rolls of different specifications, thus providing compatibility of the device. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the structure on the base plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the inner structure of the protective cover of this utility model;

[0021] Figure 4 This is a schematic diagram of the packing strap roll support structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the second disc baffle structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the strapping limiting structure of this utility model.

[0024] Reference numerals: 1. Base plate; 2. Protective cover; 3. First positioning post; 4. Protrusion; 5. Buckle; 6. Reel shaft; 7. First reel baffle; 8. Strapping roll support structure; 81. Slider; 82. Support rod; 83. First sleeve; 84. Positioning bolt; 85. Connecting rod; 9. Second reel baffle; 10. Strapping limiting structure; 101. Cylinder; 102. Second sleeve; 103. Elastic rod; 104. Ring; 11. Guide wheel; 12. Second positioning post; 13. Annular protrusion; 14. Nut; 15. Strapping machine body. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figures 1-6The base plate 1 of the strapping guide and limiting device is fixed to the side of the strapping machine body 15 by bolts. A strapping reel shaft 6 is rotatably mounted on the front of the base plate 1. A first strapping reel baffle 7 is fixedly mounted on the shaft 6. A second strapping reel baffle 9 is sleeved on the shaft 6. An annular protrusion 13 is provided on the back of the second strapping reel baffle 9. Two positioning grooves are opened on the annular protrusion 13, and these two positioning grooves cooperate with two second positioning pins 12 on the shaft 6. The end of the shaft 6 is provided with an external thread and connected to a nut 14. By tightening the nut 14, the second strapping reel baffle 9 can be fixed on the shaft 6. The shaft 6, the first strapping reel baffle 7, and the second strapping reel baffle 9 together constitute the strapping reel of the device. When installing strapping on the reel, firstly... The tape reel is inserted into the tape reel shaft 6, and then the second tape reel baffle 9 is fitted onto the tape reel shaft 6, so that the second positioning post 12 engages with the positioning groove on the annular protrusion 13. Finally, the nut 14 is connected and tightened. At this time, the two tape reel baffles can restrict the axial movement of the reel, and the tape reel shaft 6 can restrict the radial movement of the reel, so as to ensure that the tape reel can rotate stably when the baling machine is working. The front of the base plate 1 is also equipped with a strapping tape limiting structure 10 and a guide wheel 11. The strapping tape limiting structure 10 is located below the two tape reel baffles. It includes a cylinder 101, a second sleeve 102, an elastic rod 103, and an annulus 104. The cylinder 101 is fixed on the base plate 1, and the second sleeve 102 is fitted onto the cylinder 101 and fixed by a nut screw. One end of the elastic rod 103 is fixed to the second sleeve 102, and the other end is connected to the ring 104. The guide wheel 11 is located below the strapping tape limiting structure 10. The guide wheel 11 is rotatably mounted on the front of the base plate 1 through the bearing seat. The base plate 1 has a through hole for the strapping tape to pass through at the position corresponding to the strapping tape inlet of the strapping machine body 15. The guide wheel 11 is located directly in front of the through hole. After the strapping tape is installed, the end of the strapping tape is led out and passes through the ring 104 of the strapping tape limiting structure 10 and the guide wheel 11 in sequence. Finally, it enters the strapping tape inlet of the strapping machine body 15 through the through hole on the base plate 1, thus completing the strapping tape threading operation. Four first positioning posts 3 are installed in a rectangular array near the edge of the front of the base plate 1. The inner side of the protective cover 2 Four protrusions 4 are fixed in the same position as the four first positioning posts 3. Each protrusion 4 has a positioning hole that can cooperate with the first positioning post 3. The protective cover 2 is installed on the base plate 1 through the protrusions 4. The base plate 1 and the protective cover 2 are fixed together by two pairs of buckles 5. The protective cover 2 is made of transparent plastic. The strapping limit structure 10, guide wheel 11, strapping reel shaft 6 and all its components are located inside the protective cover 2. After the strapping is threaded, the protective cover 2 is engaged with the first positioning post 3 through the positioning hole of the protrusion 4, and then the two pairs of buckles 5 are closed to fix it. The protective cover 2 can protect the strapping and prevent it from breaking due to external factors. The transparent material of the protective cover 2 makes it easy for the user to observe the working status of the device.

[0027] Example 2: This example addresses the need for compatibility with multiple specifications of packing reels by improving the reel structure. A packing reel support structure 8 is provided on the first reel baffle 7. The packing reel support structure 8 includes a slider 81, a support rod 82, a first sleeve 83, a positioning bolt 84, and a connecting rod 85. The first reel baffle 7 has four radial grooves, and a slider 81 is slidably installed in each groove. The four sliders 81 are arranged in a circular array around the reel shaft 6. Support rods 82 are installed on each of the four sliders 81. The first sleeve 83 is fitted onto the reel shaft 6 and fixed by the positioning bolt 84. The reel shaft 6 has multiple equally spaced screw holes. The first sleeve 83 has a through hole that aligns with the screw holes. The screw of the positioning bolt 84 passes through the first sleeve 83. The through hole is connected to one of the screw holes on the reel shaft 6. Each of the four support rods 82 and the first sleeve 83 is provided with a connecting rod 85. The two ends of the connecting rod 85 are rotatably connected to the support rod 82 and the first sleeve 83 respectively. When installing the packing strap, the packing strap roll is inserted into the packing strap roll support structure 8, so that the support rod 82 is supported on the inner side wall of the roll, and the support rod 82 restricts the radial movement of the roll. When adapting to other specifications of rolls, the positioning bolt 84 on the first sleeve 83 can be removed first, and then the first sleeve 83 can be slid along the reel shaft 6. The connecting rod 85 drives the four sliders 81 and the four support rods 82 to retract or expand synchronously. The position of the support rod 82 can be adjusted according to the inner diameter of the roll. Finally, the positioning bolt 84 is connected to the corresponding screw hole.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bale wrap guide and restraint device for a baler, comprising a protective structure, characterised in that: The protection structure includes a bottom plate (1) and a protective cover (2), the bottom plate (1) is fixedly installed on the side of the packing machine body (15), the front of the bottom plate (1) is rotatably installed with a belt disc rotating shaft (6), the first belt disc baffle (7) is fixedly installed on the belt disc rotating shaft (6), the packing belt reel supporting structure (8) is arranged on the first belt disc baffle (7), the second belt disc baffle (9) is detachably installed on the belt disc rotating shaft (6), and the front of the bottom plate (1) is also installed with a packing belt limiting structure (10) and a guide wheel (11); The front of the bottom plate (1) is installed with four first positioning columns (3) in a rectangular array near the edge position, the inner side of the protective cover (2) is fixed with four protrusions (4) which are arranged in the same position as the four first positioning columns (3), a positioning hole matched with the first positioning column (3) is formed in each protrusion (4), the protective cover (2) is installed on the bottom plate (1) through the protrusions (4), and the bottom plate (1) and the protective cover (2) are fixed through two pairs of buckles (5).

2. The bale wrap guide and containment apparatus of claim 1, wherein: The packing belt reel supporting structure (8) includes a sliding block (81), a supporting rod (82), a first sleeve (83), a positioning bolt (84) and a connecting rod (85), four radial sliding grooves are formed in the first belt disc baffle (7), and the sliding block (81) is slidably installed in each sliding groove, the four sliding blocks (81) are arranged in an annular array with the belt disc rotating shaft (6) as the shaft, the supporting rod (82) is installed on each sliding block (81), the first sleeve (83) is sleeved on the belt disc rotating shaft (6) and is fixed through the positioning bolt (84), and the connecting rod (85) is arranged between each supporting rod (82) and the first sleeve (83), and the two ends of the connecting rod (85) are rotatably connected to the supporting rod (82) and the first sleeve (83) respectively.

3. The bale wrap guide and containment apparatus of claim 1, wherein: The packing belt limiting structure (10) is located below the two belt disc baffles, and the packing belt limiting structure (10) includes a cylinder (101), a second sleeve (102), an elastic rod (103) and a circular ring (104), the cylinder (101) is fixed on the bottom plate (1), the second sleeve (102) is sleeved on the cylinder (101) and is fixed through a machine screw, one end of the elastic rod (103) is fixed to the second sleeve (102), and the other end is connected to the circular ring (104).

4. The bale wrap guide and containment apparatus of claim 1, wherein: The guide wheel (11) is located below the packing belt limiting structure (10) and is rotatably installed on the front of the bottom plate (1) through a bearing seat.

5. The bale wrap guide and containment apparatus of claim 1, wherein: Two radial second positioning columns (12) are connected to the side of the end of the belt disc rotating shaft (6), the second belt disc baffle (9) is sleeved on the belt disc rotating shaft (6), the back of the second belt disc baffle (9) is provided with an annular protrusion (13), two positioning grooves matched with the two second positioning columns (12) are formed in the annular protrusion (13), the end of the belt disc rotating shaft (6) is provided with an external thread and is connected to a nut (14), and the nut (14) is pressed on the front of the second belt disc baffle (9).

6. The packing tape guide stopper of claim 1, wherein: The protective cover (2) is made of transparent plastic cover, the packing belt limiting structure (10), the guide wheel (11), the belt disc rotating shaft (6) and all the components thereon are located inside the protective cover (2).

7. The bale wrap guide and containment apparatus of claim 1, wherein: The bottom plate (1) is provided with a through hole corresponding to the position of the belt inlet of the packing machine body (15) for the packing belt to pass through, and the guide wheel (11) is arranged in front of the through hole.

8. The packing tape guide stopper of claim 2, wherein: A plurality of equidistantly distributed screw holes are formed on the belt disc rotating shaft (6), a through hole aligned with the screw holes is formed on the first sleeve (83), the screw rod of the positioning bolt (84) passes through the through hole on the first sleeve (83) and is connected with one of the screw holes on the belt disc rotating shaft (6).

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