A bag making machine
By using a rotating rod and cam mechanism to achieve continuous cutting and sealing of plastic bags, the problem of poor synchronization and high cost in existing technologies is solved, providing an efficient and low-cost plastic bag processing solution.
Patent Information
- Application Number
- CN202423150078.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing plastic bag making machines cannot perform high-temperature sealing and slitting processes simultaneously, and the existing structure has poor high-speed continuity and high cost.
The system employs a rotating rod and cam mechanism. The cam pushes the pressure plate downward, which in turn drives the heating sealing plate and the cutting blade to simultaneously seal and cut the plastic bag. Continuous operation is achieved using a slider and push spring.
It enables continuous cutting and sealing of plastic bags, with a simple structure and low cost.
Smart Images
Figure CN223605206U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to plastic bag production equipment technical field, especially a make bag machine. BACKGROUND
[0002] Plastic bag is the bag that is made with plastic as main raw material, is the indispensable article in people's daily life, often is used to pack other articles, because its cheap, weight extremely light, capacity, it is widely used with the advantage of being convenient to store, the production process of plastic bag needs to melt raw material and then blow film cooling, after that plastic bag hot pressing is carried out and is rolled up and can complete the production of plastic bag.
[0003] The existing plastic bag making machine needs to be slitting and high-temperature plastic sealing process when processing plastic bags, but the existing high-temperature plastic sealing and slitting process cannot be synchronized, and the existing high-temperature plastic sealing and slitting structure mostly press down plastic bags for plastic sealing or slitting through structures such as air cylinders, electric telescopic cylinders and hydraulic cylinders. This structure has poor high-speed continuity and high cost, so a bag making machine is needed to improve this problem. INVENTION CONTENTS
[0004] The utility model aims at providing a kind of bag making machine to solve the problems raised in the background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of bag making machine, including two vertical boards for bag making machine installation and two tensioning pulleys for plastic bag tensioning, two fixed wheels are rotatably installed between the two vertical boards, and the two tensioning pulleys are respectively located below the two fixed wheels on both sides, and the two fixed wheels and the two tensioning pulleys are parallelly arranged.
[0006] Two fixed plates are fixedly connected between the two vertical boards, and the fixed plate is located between the two fixed wheels, vertical grooves are longitudinally formed on the opposite side walls of the two vertical boards, sliding blocks are slidingly connected in the two vertical grooves, and a pressing plate is fixedly connected between the two sliding blocks, and the bottom of the pressing plate is fixedly connected with a heating plastic sealing plate and a cutting knife.
[0007] Two push springs are fixedly connected to the inner lower ends of the two vertical grooves, and the top surface of the push spring is fixedly connected with the bottom of the sliding block.
[0008] A rotating rod is rotatably installed between the two vertical boards, two cams are symmetrically fixedly sleeved on the rod wall of the rotating rod, the side wall of the cam is slidingly connected with the top surface of the pressing plate, and one side of one of the vertical boards is fixedly installed with a motor, and the rotating shaft of the motor penetrates through the vertical board and is fixedly connected with the rotating rod.
[0009] Preferably, the top surface of the pressing plate is fixedly connected with wear-resistant blocks, and the side wall of the two cams is slidingly attached to the top surface of the wear-resistant blocks.
[0010] Preferably, the top surface of the two wear-resistant blocks is provided with an arc-shaped groove.
[0011] Preferably, the side wall of the sliding block is symmetrically and fixedly connected with a limiting block, and the inner wall of the vertical groove is symmetrically provided with two limiting grooves.
[0012] Preferably, the two limiting blocks fixedly connected with the side wall of the sliding block are respectively slidably connected in the two limiting grooves provided in the inner wall of the vertical groove.
[0013] Preferably, the inner wall of the vertical groove is longitudinally and fixedly connected with two limiting rods, and the two limiting rods are respectively slidably penetrated through the sliding block.
[0014] Compared with the prior art, the technical effects and advantages of the utility model are:
[0015] The bag making machine benefits from the setting of the rotating rod and the cam, so that the rotating rod can drive the cam to rotate, the cam can push the pressing plate combined with the sliding rod downward to press and drive the heating plastic sealing plate and the cutting knife fixedly connected at the bottom of the pressing plate to press and cut the plastic bag on the top surface of the fixed plate, and the plastic bag can be continuously cut and sealed.
[0016] The bag making machine benefits from the setting of the sliding block and the push spring, so that when the cam pushes the pressing plate to the lowest point and the plastic bag is sealed and cut, the rotation of the cam will make the pressing plate and the sliding block lose the downward pressure, at this time, the push spring will push the sliding block and the pressing plate upward to restore to the initial state.
[0017] Compared with the prior art, the device can continuously cut and seal the plastic bag, the mechanism for continuously sealing and cutting the plastic bag is relatively simple, and the manufacturing cost is relatively low. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 It is a structural schematic diagram of the utility model;
[0020] Figure 2 It is a structural schematic diagram of the tensioning wheel, the fixed wheel and the fixed plate in the utility model;
[0021] Figure 3 It is a connection schematic diagram of the pressing plate, the rotating rod and the cam in the utility model;
[0022] Figure 4 For the utility model Figure 2 A part structure amplification schematic view in the middle;
[0023] Figure 5 For the utility model Figure 3 B part structure amplification schematic view in the middle.
[0024] Mark explanation:
[0025] In the drawing: 1, vertical plate; 2, tensioning wheel; 3, fixed wheel; 4, fixed plate; 5, vertical groove; 6, sliding block; 7, pressing plate; 8, heating plastic sealing plate; 9, cutting knife; 10, push spring; 11, rotating rod; 12, cam; 13, motor; 14, wear-resistant block; 15, limiting block; 16, limiting rod. Specific implementation
[0026] In the following description, a large number of specific details are given in order to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.
[0027] Unless the direction indicated by the single definition, the directions such as up, down, left, right, front, back, inside and outside involved in this paper are based on the directions such as up, down, left, right, front, back, inside and outside in the drawing shown by the utility model, which is explained here.
[0028] The connection mode can adopt existing modes such as bonding, welding, bolt connection and the like, and the actual needs are accurate.
[0029] As Figures 1 to 5 The main structure of a bag making machine shown in the drawing is two vertical plates 1 for bag making machine installation and two tensioning wheels 2 for plastic bag tensioning, the fixed wheel 3 is rotatably installed between the two vertical plates 1, and the two tensioning wheels 2 are respectively located below the two sides of the two fixed wheels 3, and the two fixed wheels 3 and the two tensioning wheels 2 are parallelly arranged, the plastic bag is wound to the outside of the two tensioning wheels 2 and the two fixed wheels 3, so that the plastic bag can be tensioned and can also be horizontally parallelly slid and fixed to the top surface of the fixed plate 4;
[0030] The fixed plate 4 is fixedly connected between the two vertical plates 1, and the fixed plate 4 is located between the two fixed wheels 3, the vertical grooves 5 are longitudinally formed on the opposite side walls of the two vertical plates 1, the sliding blocks 6 are slidably connected in the two vertical grooves 5, and the pressing plate 7 is fixedly connected between the two sliding blocks 6, thanks to the setting of the sliding blocks 6 and the vertical grooves 5, the sliding direction of the pressing plate 7 can be effectively limited, and the stability of the pressing plate 7 when sliding is further improved;
[0031] The bottom of the pressing plate 7 is fixedly connected with a heating plastic sealing plate 8 and a cutting knife 9, and the cutting knife 9 is provided in the form of a rack, so that the cut plastic bags can be connected and easily separated by tearing.
[0032] The inner lower end of the two vertical grooves 5 is fixedly connected with a push spring 10, and the top surface of the push spring 10 is fixedly connected with the bottom of the sliding block 6. Due to the arrangement of the sliding block 6 and the push spring 10, when the cam 12 pushes the pressing plate 7 to the lowest point and seals and cuts the plastic bags, the rotation of the cam 12 will make the pressing plate 7 and the sliding block 6 lose the downward pressure, and at this time the push spring 10 will push the sliding block 6 and the pressing plate 7 upward to restore to the initial state.
[0033] The two vertical plates 1 are rotatably connected with a rotating rod 11, and two cams 12 are symmetrically fixedly sleeved on the rod wall of the rotating rod 11, and the side wall of the cam 12 is slidably connected with the top surface of the pressing plate 7. One side of one of the vertical plates 1 is fixedly connected with a motor 13, and the rotating shaft of the motor 13 penetrates through the vertical plate 1 and is fixedly connected with the rotating rod 11. Due to the arrangement of the rotating rod 11 and the cam 12, the rotating rod 11 can drive the cam 12 to rotate, and the cam 12 can push the pressing plate 7 which is slidably connected with the cam 12 to press downward and drive the heating plastic sealing plate 8 and the cutting knife 9 fixedly connected with the bottom of the pressing plate 7 to press downward and seal and cut the plastic bags on the top surface of the fixed plate 4.
[0034] The top surface of the pressing plate 7 is fixedly connected with two wear-resistant blocks 14, and the side wall of the two cams 12 is slidably connected with the top surface of the wear-resistant block 14. The top surface of each of the two wear-resistant blocks 14 is provided with an arc-shaped groove. Due to the arrangement of the wear-resistant block 14, the pressing plate 7 and the cam 12 are not directly connected and slid, so as to avoid the friction loss between the pressing plate 7 and the cam 12, thereby improving the service life of the structure.
[0035] The side wall of the sliding block 6 is fixedly connected with two limiting blocks 15, and the inner wall of the vertical groove 5 is symmetrically provided with two limiting grooves. The two limiting blocks 15 fixedly connected with the side wall of the sliding block 6 are slidably connected in the two limiting grooves provided in the inner wall of the vertical groove 5. Due to the arrangement of the limiting block 15, the sliding direction of the sliding block 6 can be effectively limited, and the stability of the sliding block 6 during sliding is further improved.
[0036] The inner wall of the vertical groove 5 is fixedly connected with two limiting rods 16 in a longitudinal and symmetrical manner, and the two limiting rods 16 are slidably penetrated through the sliding block 6. Due to the arrangement of the limiting rod 16, the sliding direction of the sliding block 6 can be effectively limited.
[0037] Working principle
[0038] The bag making machine, in use, first winds the plastic bag between the two tensioning wheels 2 and the fixed wheel 3, then makes the plastic bag slide in parallel on the top surface of the fixed plate 4, then starts the motor 13, rotates the rotating rod 11 fixed at the end of the output shaft of the motor 13, at the same time rotates the cam 12 fixed on the side wall of the rotating rod 11, at this time, the cam 12 rotates to push the wear-resistant block 14 and the pressing plate 7 at the lower end of the wear-resistant block 14 below to move downward and drive the heating plastic sealing plate 8 and the cutting knife 9 at the bottom of the pressing plate 7 to move downward and extrude and simultaneously plastic seal and cut the plastic bag, and the cutting knife 9 is provided in the form of a rack, so that the cut plastic bags can be connected while being easily separated by tearing, and at the same time the cam 12 pushes the pressing plate 7 downward, the sliding block 6 fixed on the side wall of the pressing plate 7 is driven to slide along the vertical groove 5 and extrude the push spring 10; when the cam 12 pushes the pressing plate 7 to the lowest point, the downward pressure on the pressing plate 7 will be lost with the rotation of the cam 12, at this time the sliding block 6 is pushed by the push spring 10 to drive the pressing plate 7 to return to the initial state upward, so that the pressing plate 7 can be continuously pushed up and down with the continuous rotation of the cam 12, thereby realizing the simultaneous and continuous plastic sealing and cutting of the plastic bag.
[0039] It should be noted that, in this document, the terms such as "one" and "the" are not intended to limit the entity or operation to a single entity or to one entity. Rather, such terms are intended to cover one or more entities or operations without excluding any such many- entity or many-operation. Further, the term "includes", "including", "comprises" or "comprising", or any other variation thereof, is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement "includes one...... limited element" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the stated element.
[0040] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A bag making machine comprising two vertical plates (1) for bag making machine installation and two tensioning wheels (2) for plastic bag tensioning, characterized by: Two said vertical plate (1) between the rotating installation of fixed wheel (3), and two tension wheel (2) are respectively located below two fixed wheel (3) both sides, and two fixed wheel (3) and two tension wheel (2) are parallelly arranged; Two said vertical plate (1) between the fixed connection has fixed plate (4), and fixed plate (4) is located between two fixed wheel (3), two said vertical plate (1) opposite side wall on all are longitudinally set up vertical groove (5), two said vertical groove (5) all are slidingly connected with sliding block (6), and two said sliding block (6) between the fixed connection has pressing plate (7), the bottom of pressing plate (7) is respectively fixedly connected with heating plastic sealing plate (8) and cutting knife (9); Two said vertical groove (5) inside lower end fixedly connected with push spring (10), the top surface of push spring (10) and the bottom of sliding block (6) are fixedly connected; Two vertical plate (1) between the rotating installation has rotating shaft (11), the rod wall of rotating shaft (11) is fixedly sleeved with two cams (12) symmetrically, and the side wall of cam (12) and the top surface of pressing plate (7) are slidingly connected, one of said vertical plate (1) one side fixedly installed motor (13), and the rotating shaft of motor (13) rotates through vertical plate (1) and is fixedly connected with rotating shaft (11).
2. A bag making machine according to claim 1, characterized in that: The top surface of said pressing plate (7) is fixedly connected with wear-resistant block (14) symmetrically, and the side wall of two said cam (12) is slidingly attached to the top surface of wear-resistant block (14).
3. A bag making machine according to claim 2, characterized in that: The top surface of two said wear-resistant block (14) is provided with arc-shaped groove.
4. A bag making machine according to claim 1, characterized in that: The side wall of said sliding block (6) is fixedly connected with limiting block (15), and the inner wall of said vertical groove (5) is symmetrically provided with two limiting grooves.
5. A bag making machine according to claim 4, characterized in that: The two limiting blocks (15) fixedly connected with the side wall of said sliding block (6) are respectively slidingly connected in the two limiting grooves provided in the inner wall of vertical groove (5).
6. A bag making machine according to claim 1, characterized in that: The inner wall of said vertical groove (5) is longitudinally fixedly connected with two limiting rods (16), and two said limiting rods (16) are respectively slidingly penetrated into sliding block (6).