A pallet wrap cutter

Abstract

The utility model discloses a tray winding film cutting device belongs to packaging machinery technical field, including support seat, installation mechanism, support and cutting mechanism, and installation mechanism is connected with support seat through extension frame, and support is installed between support seat, and cutting mechanism includes guide roller, electric push rod, fixed base and heating wire, and electric push rod is fixed on the support, and the fixed base is fixed to the telescopic end of electric push rod, and heating wire is installed on fixed base, when working, electric push rod drives fixed base to move, makes heating wire contact winding film and realizes heat cutting. The utility model integrates cutting mechanism and winding device, realizes the automation of cutting process, solves the problem that the prior art needs manual operation, and the low efficiency and unsafe problem, has the beneficial effect of remarkable promotion packaging efficiency and operation safety.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and in particular to a pallet wrapping film cutter. Background Technology

[0002] Pallet stretch film is a widely used packaging material in warehousing logistics and product transportation. It tightly wraps goods to pallets, providing stability, dust protection, moisture protection, and product protection. In modern automated production lines, the use of automatic and semi-automatic pallet stretching machines for packaging is widespread. These machines can efficiently complete the stretching operation on pallets. However, in the final stage of the stretching operation, namely the cutting and separation of the stretch film, existing technologies still have significant shortcomings. When the stretching is completed, operators need to hold a cutting tool close to the equipment to manually cut the stretch film. This manual intervention firstly interrupts the automation continuity of the packaging process, creating a bottleneck and significantly reducing overall packaging efficiency. Secondly, operators using sharp tools near the equipment not only pose a safety hazard of cutting themselves but also risk accidentally damaging the goods on the pallet during cutting, resulting in product loss. In addition, the quality of the cuts made manually and the treatment of the film ends are difficult to guarantee consistently, affecting the overall strength and appearance of the packaging.

[0003] Therefore, this utility model proposes a tray wrapping film cutter to overcome the shortcomings of the prior art. Utility Model Content

[0004] In view of the problems of existing pallet wrapping film cutters, such as the separation of wrapping and cutting processes, reliance on manual operation, resulting in low automation and safety hazards, this utility model aims to provide a pallet wrapping film cutter with an improved structure that can effectively solve the above problems.

[0005] This utility model provides a tray wrapping film cutter, including: a support base, a mounting mechanism; and a bracket and a cutting mechanism.

[0006] The cutting mechanism includes an electric push rod, a fixed base, and a heating wire mounted on the fixed base.

[0007] Furthermore, the mounting mechanism is connected to the support base via an extension frame, the bracket is installed between the support bases, the rotating shaft of the cutting mechanism is fixed between the support bases, the guide roller is sleeved on the outer wall of the rotating shaft and can rotate around the rotating shaft, the rear fixed end of the electric push rod is fixed to the bracket, the front telescopic end of the electric push rod is fixed to the same fixed base, and the heating wire is installed on the inner side of the fixed base and corresponds to the position of the guide roller.

[0008] Preferably, the mounting mechanism further includes a support fixed to the top of the end of the extension frame, with a circular groove in the center of the support. The mounting mechanism also includes a bearing and a fixed shaft, with the outer ring of the bearing fixed in the circular groove and the fixed shaft mounted on the support via the inner ring of the bearing. The mounting mechanism further includes a roller with an annular groove in the top of the support, and the roller is rotatably connected in the annular groove.

[0009] Preferably, the number of rotating shafts is four, and the guide rollers are arranged in pairs. The two groups of guide rollers are located on the left and right sides of the two support seats, respectively, to construct a symmetrical and stable membrane material guiding path.

[0010] Preferably, three electric push rods are fixed to the inner side of the bracket, and two heating wires are installed on the inner side of the fixing seat to ensure smooth and reliable cutting action.

[0011] This utility model has the following beneficial effects: 1. This utility model solves the problem in the prior art that the winding and cutting processes are separated, requiring manual cutting of the wrapping film, resulting in low automation, cumbersome operation, and safety hazards. It achieves the technical effect of integrating winding and cutting, automating the cutting process, and significantly improving packaging efficiency and operational safety.

[0012] 2. This utility model solves the problems of unstable cutting execution leading to cutting failure, large pallet rotation resistance, and film material deviation and wrinkling in the prior art by using multiple electric push rods to drive the fixed base together, and by setting bearings and rollers in the installation mechanism and cooperating with guide rollers to guide the film material. It achieves the technical effect of precise and reliable cutting action, smooth pallet rotation, stable film material transportation, and effectively ensuring the overall packaging quality. Attached Figure Description

[0013] Figure 1 This is a perspective view of a tray wrapping film cutter proposed in this utility model; Figure 2 This is an exploded view of the support base in a tray wrapping film cutter proposed in this utility model; Figure 3 This is a split view of the support in a tray wrapping film cutter proposed in this utility model; Figure 4 This is a schematic diagram of the installation mechanism in a tray wrapping film cutter proposed in this utility model.

[0014] Legend: 1. Bracket; 2. Support base; 3. Cutting mechanism; 31. Rotating shaft; 32. Guide roller; 33. Electric actuator; 34. Fixed base; 35. Heating wire; 4. Mounting mechanism; 41. Extension frame; 42. Support; 43. Bearing; 44. Fixed shaft; 45. Roller. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Example: Please refer to Figure 1 , Figure 2 and Figure 4 As shown, a pallet wrapping film cutter includes a support base 2, preferably a top support base 2 and a bottom support base 2, and an installation mechanism 4. The installation mechanism 4 is connected to the bottom support base 2 via an extension frame 41. The support base 2 serves as the mounting base for the entire device and is used to construct a vertical frame. The installation mechanism 4 is used to support palletized goods and allow the pallet to rotate. One end of the extension frame 41 is fixedly connected to the bottom support base 2, and the other end of the extension frame 41 is connected to the installation mechanism 4. The installation mechanism 4 also includes a support 42, which is fixed to the top of the end of the extension frame 41. A circular groove is formed in the center of the support 42. The installation mechanism 4 also includes a bearing 43 and a fixed shaft 44. The outer ring of the bearing 43 is fixed in the circular groove, and the fixed shaft 44 is mounted on the support 42 via the inner ring of the bearing 43. The fixed shaft 44 is used to fit the pallet. The installation mechanism 4 also includes a roller 45, which is rotatably connected to the top of the support 42 via an annular groove and is used to support the bottom of the pallet.

[0017] Please refer to Figure 1 , Figure 2 and Figure 3The bracket 1 is installed between the top support 2 and the bottom support 2. The cutting mechanism 3 includes a rotating shaft 31, a guide roller 32, an electric push rod 33, a fixed seat 34, and a heating wire 35. The four rotating shafts 31 are vertically fixed between the two support seats 2. The guide rollers 32 are sleeved on the outer wall of the rotating shafts 31 and can rotate around the rotating shafts 31. The guide rollers 32 are arranged in pairs and the two sets of guide rollers 32 are located on the left and right sides of the two support seats 2 respectively. The guide rollers 32 are used to guide the smooth transport of the wrapping film. The three electric push rods 33 are fixed in the horizontal direction on the inner side of the bracket 1. The rear fixed end of the electric push rod 33 is fixedly connected to the bracket 1. The front telescopic ends of the three electric push rods 33 are all fixed with the same fixed seat 34. The two heating wires 35 are installed on the inner side of the fixed seat 34, and the position of the heating wires 35 corresponds to the position of the guide rollers 32. The electric push rods 33 telescopically drive the fixed seat 34, thereby driving the heating wires 35 to move horizontally, so as to realize the contact thermal cutting of the wrapping film.

[0018] Please refer to Figure 4 In a preferred embodiment, to construct a stable rotating support platform, the mounting mechanism 4 also includes a support 42, which is fixed to the top of the end of the extension frame 41. To achieve low-resistance rotation of the pallet, a circular groove is provided in the center of the support 42. The mounting mechanism 4 also includes a bearing 43 and a fixed shaft 44. The outer ring of the bearing 43 is fixed in the circular groove by a tight fit. The fixed shaft 44 is vertically arranged, and the lower end of the fixed shaft 44 is mounted on the support 42 through the inner ring of the bearing 43. The fixed shaft 44 is used to fit and fix the pallet. To further reduce friction and distribute the load, an annular groove is provided on the top of the support 42 around the circular groove. The mounting mechanism 4 also includes rollers 45, which can be multiple and arranged in an array and rotatably connected in the annular groove. The upper surface of the rollers 45 is used to support the bottom of the pallet.

[0019] As another preferred embodiment, please refer to Figure 2 and Figure 3 To construct a stable and symmetrical membrane material guiding path, four rotating shafts 31 are used. The four rotating shafts 31 are fixed vertically and parallel between the top support 2 and the bottom support 2 in pairs. Correspondingly, the guide rollers 32 are also set in pairs. The two sets of guide rollers 32 are located on the left and right sides of the two support 2 respectively, forming a symmetrical guiding structure. In order to ensure the smoothness of the cutting action and the uniformity of the thrust, three electric push rods 33 are fixed on the inner side of the bracket 1. The three electric push rods 33 are arranged in an array along the vertical direction. The front telescopic ends of the three electric push rods 33 are jointly fixedly connected to the fixed seat 34. In order to ensure the reliability of the cutting and the instantaneous melting effect, two heating wires 35 are installed on the inner side of the fixed seat 34. The two heating wires 35 are arranged parallel to each other and are spaced apart, corresponding to the position of the membrane material path of the guide rollers 32.

[0020] Working principle: Before wrapping, the palletized goods are first placed on the mounting mechanism 4. Specifically, the center hole of the pallet is aligned and fitted onto the fixed shaft 44. The fixed shaft 44 is mounted on the support 42 via the inner ring of the bearing 43. The outer ring of the bearing 43 is fixed in the circular groove at the center of the support 42. The bottom of the pallet rests stably on the rollers 45. The rollers 45 are rotatably connected to the annular groove at the top of the support 42. There can be multiple rollers 45. The cooperation between the rollers 45 and the bearings 43 allows the palletized goods to be driven to rotate by an external power source with extremely low friction. 2. Fixed at the top end of the extension frame 41, the extension frame 41 is connected to the bottom support 2, thereby connecting the mounting mechanism 4 to the vertical frame of the entire device. The preparation work also includes pulling out the free end of the wrapping film, so that the wrapping film passes through the guide rollers 32 set between the two support seats 2 in sequence. Four rotating shafts 31 are vertically fixed between the two support seats 2. The outer wall of each rotating shaft 31 is fitted with a guide roller 32. The four guide rollers 32 are divided into two groups. The two groups of guide rollers 32 are located on the left and right sides of the two support seats 2 respectively, forming a symmetrical guide path. When the wrapping operation begins, the fixed shaft 4... 4. The palletized goods begin to rotate, and the stretch film is pulled out. Under tension, the stretch film drives the guide roller 32 to rotate freely around the shaft 31. The rotation of the guide roller 32 ensures that the stretch film remains stable and smooth during high-speed transport, and is not prone to wrinkling or deviation. The stretch film rotates with the pallet and is evenly wrapped around the surface of the palletized goods. When the wrapping operation is completed and the stretch film needs to be cut, the cutting mechanism 3 is activated. At this time, the three electric push rods 33 installed inside the bracket 1 are activated and begin to extend synchronously. The bracket 1 is installed between the two support seats 2, providing a stable mounting base for the electric push rods 33. The front telescopic ends of the three electric push rods 33 are all fixed with the same fixed seat 34. As the electric push rods 33 extend, the fixed seat 34 is pushed forward smoothly. The two heating wires 35 installed inside the fixed seat 34 also move forward. The positions of the two heating wires 35 correspond to the winding film path guided by the guide roller 32. At the same time as the electric push rods 33 push the fixed seat 34, the two heating wires 35 are energized and rapidly heated to a high temperature sufficient to melt the film material. When the high temperature heating wires 35 come into contact with the stretched winding film, the winding film is instantly melted, completing the cutting operation. The parallel arrangement of the three electric push rods 33 ensures that the fixed seat 34 is subjected to uniform force during the advancement process, preventing tilting or jamming and ensuring the accuracy and reliability of the cutting action. The parallel arrangement of the two heating wires 35 provides double insurance, ensuring successful cutting on the first attempt. After cutting, the three electric push rods 33 retract synchronously, and the rear fixed end of the electric push rod 33 is fixed on the bracket 1. The retraction of the electric push rod 33 drives the fixed seat 34 and the two heating wires 35 to reset backward, disengaging from the working path of the wrapping film. At the same time, the power supply to the heating wires 35 is cut off, allowing them to cool down and await the next cutting command. This utility model integrates the mounting mechanism 4 for rotating trays, the guide roller 32 for guiding film material, and the cutting mechanism 3 for automatic cutting onto a unified frame composed of the support seat 2 and the bracket 1, realizing an automated process from wrapping to cutting. This solves the technical problems of existing technologies where cutting relies on manual operation, has a low degree of automation, poses safety hazards, and the packaging process is not continuous.

Claims

1. A pallet wrapping film cutter, comprising: Support base (2), mounting mechanism (4), the mounting mechanism (4) is connected to the support base (2) via an extension frame (41); Its features are, The tray wrapping film cutter further includes a bracket (1), which is installed between the support seats (2); and a cutting mechanism (3), which includes a rotating shaft (31), a guide roller (32), an electric push rod (33), a fixed seat (34), and a heating wire (35). The rotating shaft (31) is fixed between the support seats (2), the guide roller (32) is sleeved on the outer wall of the rotating shaft (31) and can rotate around the rotating shaft (31), the rear fixed end of the electric push rod (33) is fixed to the bracket (1), and the front telescopic end of the electric push rod (33) is fixed to the same fixed seat (34). The heating wire (35) is installed on the inner side of the fixed seat (34), and the heating wire (35) corresponds to the position of the guide roller (32).

2. A pallet wrap cutter according to claim 1, wherein, The mounting mechanism (4) also includes a support (42) which is fixed to the top of the end of the extension frame (41).

3. A tray wrapping film cutter according to claim 2, characterized in that, The support (42) has a circular groove in the center. The mounting mechanism (4) also includes a bearing (43) and a fixed shaft (44). The outer ring of the bearing (43) is fixed in the circular groove, and the fixed shaft (44) is mounted on the support (42) through the inner ring of the bearing (43).

4. A tray wrapping film cutter according to claim 3, characterized in that, The mounting mechanism (4) also includes a roller (45), and the top of the support (42) is provided with an annular groove, and the roller (45) is rotatably connected in the annular groove.

5. A tray wrapping film cutter according to claim 1, characterized in that, The number of the rotating shafts (31) is four.

6. A pallet wrap cutter according to claim 1, wherein, The guide rollers (32) are arranged in pairs.

7. A tray wrapping film cutter according to claim 6, characterized in that, The two sets of guide rollers (32) are located on the left and right sides of the two support seats (2), respectively.

8. A tray wrapping film cutter according to claim 1, characterized in that, Three electric actuators (33) are fixed on the inner side of the bracket (1).

9. A tray wrapping film cutter according to claim 1, characterized in that, Two heating wires (35) are installed on the inner side of the fixing base (34).

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