A connecting rod type pneumatic inward stripping mechanism and method for strapping machine

Abstract

The embodiment of the present invention discloses a connecting rod type pneumatic inward stripping mechanism for a strapping machine, comprising: a movement mounting plate, a stripping seat, a stripping seat pressure plate, a swing arm pin, a grinding head pressure plate swing arm, a tooth plate, a swing arm connecting rod, a first connecting rod, a second connecting rod, a cylinder support, a stripping cylinder, a top knife rod, a top knife, a limit block and an anti-collision pad, a cylinder piston rod, a floating joint, a swing arm connecting rod, a first connecting rod, a second connecting rod and a grinding head pressure plate swing arm form a connecting rod mechanism, the cylinder piston rod pulls the grinding head pressure plate swing arm to swing right to realize stripping, and the cylinder piston rod pushes the grinding head pressure plate swing arm to move left to press the strapping tape. The present invention is simple and reliable, easy to maintain, compact in structure, small in space, uses a cylinder as a driving force, has adjustable pressure and adjustable stroke, and can be applied to a variety of different working conditions.

Description

Technical Field

[0001] The invention relates to the field of baling machines, and in particular to a connecting rod type pneumatic inward belt-removing mechanism and method for a baling machine. Background Art

[0002] At present, some strapping machine belt guide mechanisms on the market are either complex in structure, large in size, or have a single working condition. Therefore, our company decided to research new products to solve this problem. The present invention aims to provide a simple and effective strapping machine belt removal mechanism to obtain better strapping effect and stability, while occupying less space and having wide applicability. Summary of the invention

[0003] The object of the present invention is to provide a connecting rod type pneumatic inward stripping mechanism for a strapping machine, so as to obtain a better packaging effect and stability, which is simple and effective, occupies a small space and has a wide applicability.

[0004] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0005] A connecting rod type pneumatic inward stripping mechanism for a strapping machine, comprising:

[0006] A movement mounting plate, wherein the movement mounting plate is fixed on the bundling body;

[0007] A belt pressing seat, the belt pressing seat is fixed on the movement mounting plate, and is provided with a groove structure, and knife bar mounting holes are respectively provided on both sides of the groove structure in the vertical direction, and swing arm pin holes are also respectively provided on both sides of the groove structure;

[0008] The belt pressing seat pressing plate has two pieces, which are respectively arranged on the outer sides of the belt pressing seat and are provided with swing arm pin holes corresponding to the belt pressing seat;

[0009] There are two swing arm pins, which are respectively arranged on both sides of the groove structure and pass through the belt pressing seat and the belt pressing seat pressure plate;

[0010] Grinding head pressure plate swing arm, there are two grinding head pressure plate swing arms, which are L-shaped and hinged between the belt pressing seat and the belt pressing seat pressure plate through the swing arm pin;

[0011] The toothed plate bottom plate is fixedly connected between the two grinding head pressure plate swing arms, and the position where the toothed plate bottom plate is connected to the grinding head pressure plate swing arm is at the left end of the grinding head pressure plate swing arm;

[0012] Tooth plates, there are two tooth plates, which are respectively arranged on the bottom plate of the tooth plate at positions corresponding to the top knife;

[0013] The first connecting rod has two first connecting rods, and the left end of the first connecting rod is correspondingly hinged to the right end of the grinding head pressure plate swing arm;

[0014] A second connecting rod, wherein there are two second connecting rods, and the left end of each second connecting rod is correspondingly hinged to the right end of the first connecting rod;

[0015] There are two connecting rod seats, which are fixed on the strapping machine body and hinged to the right end of the second connecting rod;

[0016] A swing arm connecting rod, wherein the lower end of the swing arm connecting rod is simultaneously hinged to the right ends of a pair of first connecting rods and the left ends of a pair of second connecting rods;

[0017] A cylinder support, wherein the cylinder support is fixed on the strapping machine body;

[0018] A belt-release cylinder, which is vertically fixed on a cylinder support and has a protruding piston rod therein;

[0019] A floating joint, wherein the floating joint is connected to the lower end of the piston rod of the belt-release cylinder and the upper end of the swing arm connecting rod;

[0020] There are two top knife rods, which are respectively vertically arranged in the knife rod mounting holes on the belt pressing seat and are controlled by the belt pressing cylinder of the belt pressing mechanism and can slide up and down under the action of the belt pressing cylinder;

[0021] There are two top knives, each of which is fixed at the lower end of the top knife rod;

[0022] Limit blocks, there are two limit blocks, which are respectively arranged directly below the swing arm connecting rod to limit the stroke of the swing arm connecting rod;

[0023] There are two anti-collision pads, which are respectively arranged on the limit blocks to buffer the impact of the swing arm connecting rod on the limit blocks;

[0024] When pressing the strap, the top knife and the tooth plate are in a mutually perpendicular position, and a certain gap is left to allow the strapping strap to pass through. The cylinder piston rod, floating joint, swing arm connecting rod, first connecting rod, second connecting rod and grinding head pressure plate swing arm form a connecting rod mechanism. When the stripping cylinder is exhausted, the cylinder piston rod pulls the grinding head pressure plate swing arm to swing right, driving the tooth plate to move right to achieve stripping; when the stripping cylinder is inhaled, the cylinder piston rod pushes the grinding head pressure plate swing arm to move left, driving the tooth plate to move left, so that the tooth plate returns to a perpendicular position with the top knife, and the top knife rod is pressed down to make the top knife press the strapping strap.

[0025] Furthermore, both ends of the floating joint are screw rods equipped with nuts, and the length of the swing arm connecting rod can be adjusted by the nuts, thereby adjusting the gap between the tooth plate and the top knife after wear during belt pressing to meet the belt pressing requirements.

[0026] Accordingly, an embodiment of the present invention further provides a method for connecting rod type pneumatic inward stripping of a strapping machine, comprising:

[0027] Step 1: Adjust the floating joint so that the swing arm connecting rod can push out the first connecting rod and form a straight line with the second connecting rod when the belt-release cylinder is inhaled;

[0028] Step 2: Adjust the belt pressing structure so that when the first connecting rod and the second connecting rod form a straight line, the top knife position satisfies the gap between the top knife and the tooth plate required for the belt pressing;

[0029] Step 3: Set the strapping tape under the top knife;

[0030] Step 4: The belt-removing cylinder is inflated until the first connecting rod and the second connecting rod form a straight line, so that the tooth plate and the top knife are in a vertical state, and the belt pressing cylinder of the belt pressing mechanism drives the top knife rod to slide down, thereby pressing the top knife down to compact the strapping belt;

[0031] Step 5: The belt-releasing cylinder releases air until the grinding head pressure plate swing arm drives the tooth plate to loosen the strapping belt.

[0032] Beneficial effects of the present invention:

[0033] The beneficial effects of the present invention are: simple and reliable structure, easy maintenance, compact structure, small space occupation, using cylinder as driving force, adjustable pressure, the top cutter rod can adjust the stroke range of rising or pressing down, the floating joint can adjust the stroke range of the tooth plate to meet the requirements of complete engagement between the top cutter and the tooth plate, especially when the top cutter or the tooth plate is worn, the stroke is adjustable, and it can be applied to a variety of different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a three-dimensional structural diagram of an embodiment of the present invention;

[0035] Figure 2 is a view of the embodiment of the present invention when the belt is pressed;

[0036] Figure 3 is a view of an embodiment of the present invention when the belt is removed;

[0037] Figure 4 is another view of the embodiment of the present invention;

[0038] The following are the descriptions of the reference numerals:

[0039] 1. Cylinder support

[0040] 2. Take-off cylinder

[0041] 201.Piston rod

[0042] 3. Floating joint

[0043] 301. Nut

[0044] 4. Swing arm connecting rod

[0045] 401.Limiting block

[0046] 402. Crash pad

[0047] 5. First connecting rod

[0048] 6. Second connecting rod

[0049] 601.Connecting rod seat

[0050] 7. Grinding head pressure plate swing arm

[0051] 8. Tooth plate bottom plate

[0052] 801. Tooth plate

[0053] 9. Belt pressing seat

[0054] 901. Groove structure

[0055] 902.Arbor mounting hole

[0056] 10. Pressing plate of belt press seat

[0057] 11. Top tool bar

[0058] 12. Top knife

[0059] 13. Swing arm pin

[0060] 1301.Swing arm pin hole

[0061] 14. Movement mounting plate. DETAILED DESCRIPTION

[0062] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention is further described in detail below in conjunction with the drawings and specific embodiments.

[0063] In the embodiments of the present invention, if there are directional indications (such as up, down, left, right, front, back, etc.), they are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0064] In addition, in the embodiments of the present invention, the descriptions involving "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0065] Please refer to Figures 1 to 4A connecting rod type pneumatic inward stripping mechanism for a strapping machine includes: a movement mounting plate 14, a belt pressing seat 9, a belt pressing seat pressing plate 10, a swing arm pin 13, a grinding head pressing plate swing arm 7, a tooth plate bottom plate 8, a tooth plate 801, a first connecting rod 5, a second connecting rod 6, a connecting rod seat 601, a swing arm connecting rod 4, a cylinder support 1, a stripping cylinder 2, a floating joint 3, a top knife rod 11, a top knife 12, a limit block 401 and an anti-collision pad 402.

[0066] The movement mounting plate 14 is fixed on the strapping machine body, and the belt pressing seat 9 is fixed on the movement mounting plate 14, on which a groove structure 901 is provided, and top knife rod mounting holes 902 are respectively provided on both sides of the groove structure 901 in the vertical direction, and swing arm pin holes 1301 are also respectively provided on both sides of the groove structure 901; the belt pressing seat pressing plate 10 has two pieces, which are respectively arranged on the outer sides of the belt pressing seat 9 on both sides, and swing arm pin holes 1301 corresponding to the belt pressing seat are provided on it; there are two swing arm pins 13, which are respectively arranged on both sides of the groove structure 901, and pass through the belt pressing seat 9 and The belt press seat pressure plate 10; there are two grinding head pressure plate swing arms 7, which are L-shaped and are hinged between the belt press seat 9 and the belt press seat pressure plate 10 through the swing arm pin 13; the tooth plate bottom plate 8 is connected between the two grinding head pressure plate swing arms 7 (it can be fixed by bolts or mortise and tenon connection), and the position where it is connected to the grinding head pressure plate swing arm 7 is at the left end of the grinding head pressure plate swing arm 7; there are two tooth plates 801, which are respectively arranged on the tooth plate bottom plate 8 at the positions corresponding to the top knife 12; there are two first connecting rods 5, and the left end of each of them is correspondingly hinged to the grinding head pressure plate swing arm 7; there are two second connecting rods 6, and the left end of the second connecting rod 6 is correspondingly hinged to the right end of the first connecting rod 5; there are two connecting rod seats 601, which are fixed to the strapping machine body, and the connecting rod seats 601 are correspondingly hinged to the right end of the second connecting rod 6; the lower end of the swing arm connecting rod 5 is simultaneously hinged to a pair of right ends of the first connecting rod 5 and a pair of left ends of the second connecting rod 6; the cylinder support 1 is fixed to the strapping machine body; the stripping cylinder 2 is vertically fixed to the cylinder support 1, and a protruding piston rod 201 is provided in the stripping cylinder 2; the floating joint 3 is connected to the piston rod of the stripping cylinder The lower end of 201 is connected to the upper end of the swing arm connecting rod 4; there are two top knife rods 11, which are respectively vertically arranged in the knife rod mounting holes 902 on the belt pressing seat, and are controlled by the belt pressing cylinder of the belt pressing mechanism, and can slide up and down under the action of the belt pressing cylinder; there are two top knives 12, which are respectively fixed to the lower ends of the top knife rod 11; there are two limit blocks 401, which are respectively arranged directly below the swing arm connecting rod 4 to limit the stroke of the swing arm connecting rod; there are two anti-collision pads 402, which are respectively arranged on the limit blocks 401 to buffer the impact of the swing arm connecting rod 4 on the limit blocks 401.

[0067] When pressing the belt, the top knife 12 and the tooth plate 801 are in a meshing position, and the cylinder piston rod 201, the floating joint 3, the swing arm connecting rod 4, the first connecting rod 5, the second connecting rod 6 and the grinding head pressure plate swing arm 7 form a connecting rod mechanism. When the belt stripping cylinder is exhausted, the cylinder piston rod 201 pulls the grinding head pressure plate swing arm 7 to swing right, driving the tooth plate 801 to move right to achieve belt stripping; when the belt stripping cylinder 2 is inhaled, the cylinder piston rod 201 pushes the grinding head pressure plate swing arm 7 to move left, driving the tooth plate 801 to move left, so that the tooth plate 801 returns to the meshing position with the top knife 12, and compresses the strapping belt.

[0068] As an implementation mode, both ends of the floating joint 3 are screw rods equipped with nuts 301, and the nut 301 can be used to adjust the extension length of the swing arm connecting rod 4, thereby adjusting the gap between the tooth plate 801 and the top knife 12 after wear during belt pressing to meet the belt pressing requirements.

[0069] The embodiment of the present invention further provides a method for connecting rod type pneumatic inward belt removal of a strapping machine, which is applied to the connecting rod type pneumatic inward belt removal mechanism of the strapping machine provided in the embodiment of the present invention, and comprises:

[0070] Step 1: Adjust the floating joint 3 so that the swing arm connecting rod 4 can push out the first connecting rod 5 and the second connecting rod 6 to form a straight line when the belt-release cylinder 2 is inhaled;

[0071] Step 2: Adjust the belt pressing structure so that when the first connecting rod 5 and the second connecting rod 6 form a straight line, the position of the top knife 12 satisfies the gap between the top knife 12 and the tooth plate 801 required for belt pressing;

[0072] Step 3: Set the strapping tape to pass under the top knife 12;

[0073] Step 4: The stripping cylinder 2 is inflated until the first connecting rod 5 and the second connecting rod 6 form a straight line, so that the tooth plate 801 and the top knife 12 are in a vertical state, and the belt pressing cylinder of the belt pressing mechanism drives the top knife rod 11 to slide down, thereby pressing the top knife 12 downward to compact the strapping belt;

[0074] Step 5: The belt-releasing cylinder 2 releases air until the grinding head pressure plate swing arm 7 drives the tooth plate 801 to loosen the strapping belt.

[0075] Beneficial effects of the embodiments of the present invention:

[0076] The beneficial effects of the present invention are: simple and reliable structure, easy maintenance, compact structure, small space occupation, using cylinder as driving force, adjustable pressure, the top cutter rod can adjust the stroke range of rising or pressing down, the floating joint can adjust the stroke range of the tooth plate to meet the requirements of complete engagement between the top cutter and the tooth plate, especially when the top cutter or the tooth plate is worn, the stroke is adjustable, and it can be applied to a variety of different working conditions.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connecting rod type pneumatic inward stripping mechanism for a strapping machine, characterized in that: include: A movement mounting plate, wherein the movement mounting plate is fixed on the bundling body; A belt pressing seat, the belt pressing seat is fixed on the movement mounting plate, and is provided with a groove structure, and knife bar mounting holes are respectively provided on both sides of the groove structure in the vertical direction, and swing arm pin holes are also respectively provided on both sides of the groove structure; The belt pressing seat pressing plate has two pieces, which are respectively arranged on the outer sides of the belt pressing seat and are provided with swing arm pin holes corresponding to the belt pressing seat; There are two swing arm pins, which are respectively arranged on both sides of the groove structure and pass through the belt pressing seat and the belt pressing seat pressure plate; Grinding head pressure plate swing arm, there are two grinding head pressure plate swing arms, which are L-shaped and hinged between the belt pressing seat and the belt pressing seat pressure plate through the swing arm pin; The toothed plate bottom plate is fixedly connected between the two grinding head pressure plate swing arms, and the position where the toothed plate bottom plate is connected to the grinding head pressure plate swing arm is at the left end of the grinding head pressure plate swing arm; Tooth plates, there are two tooth plates, which are respectively arranged on the bottom plate of the tooth plate at positions corresponding to the top knife; The first connecting rod has two first connecting rods, and the left end of the first connecting rod is correspondingly hinged to the right end of the grinding head pressure plate swing arm; A second connecting rod, wherein there are two second connecting rods, and the left end of each second connecting rod is correspondingly hinged to the right end of the first connecting rod; There are two connecting rod seats, which are fixed on the strapping machine body and hinged to the right end of the second connecting rod; A swing arm connecting rod, wherein the lower end of the swing arm connecting rod is simultaneously hinged to the right ends of a pair of first connecting rods and the left ends of a pair of second connecting rods; A cylinder support, wherein the cylinder support is fixed on the strapping machine body; A belt-release cylinder, which is vertically fixed on a cylinder support and has a protruding piston rod therein; A floating joint, wherein the floating joint is connected to the lower end of the piston rod of the belt-release cylinder and the upper end of the swing arm connecting rod; There are two top knife rods, which are respectively vertically arranged in the knife rod mounting holes on the belt pressing seat and are controlled by the belt pressing cylinder of the belt pressing mechanism and can slide up and down under the action of the belt pressing cylinder; There are two top knives, each of which is fixed at the lower end of the top knife rod; Limit blocks, there are two limit blocks, which are respectively arranged directly below the swing arm connecting rod to limit the stroke of the swing arm connecting rod; There are two anti-collision pads, which are respectively arranged on the limit blocks to buffer the impact of the swing arm connecting rod on the limit blocks; When pressing the belt, the top knife and the tooth plate are in a mutually perpendicular position, and a certain gap is left to satisfy the passage of the strapping belt. The cylinder piston rod, the floating joint, the swing arm connecting rod, the first connecting rod, the second connecting rod and the grinding head pressure plate swing arm form a connecting rod mechanism. When the air is discharged from the belt-taking cylinder, the cylinder piston rod pulls the grinding head pressure plate swing arm to swing right, driving the tooth plate to move right to achieve belt taking off; when the belt-taking cylinder is inhaled, the cylinder piston rod pushes the grinding head pressure plate swing arm to move left, driving the tooth plate to move left, so that the tooth plate returns to a perpendicular position with the top knife, and the top knife rod is pressed down to make the top knife press the strapping belt tightly. The two ends of the floating joint are screws equipped with nuts, and the length of the swing arm connecting rod can be adjusted by the nut, and then the gap between the tooth plate and the top knife after wear is generated during belt pressing is adjusted to meet the belt pressing requirements. The cylinder is used as the driving force, and the pressure is adjustable. The top knife rod can adjust the stroke range of the rise or press, and the floating joint can adjust the stroke range of the tooth plate. include: Step 1: Adjust the floating joint so that the swing arm connecting rod can push out the first connecting rod and form a straight line with the second connecting rod when the belt-release cylinder is inhaled; Step 2: Adjust the belt pressing structure so that when the first connecting rod and the second connecting rod form a straight line, the top knife position satisfies the gap between the top knife and the tooth plate required for the belt pressing; Step 3: Set the strapping tape under the top knife; Step 4: The belt-removing cylinder is inflated until the first connecting rod and the second connecting rod form a straight line, so that the tooth plate and the top knife are in a vertical state, and the belt pressing cylinder of the belt pressing mechanism drives the top knife rod to slide down, thereby pressing the top knife down to compact the strapping belt; Step 5: The belt-releasing cylinder releases air until the grinding head pressure plate swing arm drives the tooth plate to loosen the strapping belt.

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