PVC decorative film production, conveying and two-way stretching device

Abstract

The utility model relates to the technical field of plastic manufacturing, in particular to a PVC decorative film production conveying two-way stretching device which comprises a machine body, a conveying belt is installed in the machine body, limiting grooves are formed in the front side and the rear side of the interior of the machine body, and two limiting blocks are slidably connected into the limiting grooves. Mounting frames are fixedly connected to the sides, close to each other, of the limiting blocks on the front side and the rear side, a plurality of electric telescopic rods are fixedly connected to the upper sides of the mounting frames, and mounting plates are fixedly connected to the bottom ends of the electric telescopic rods. The PVC film clamping device has the beneficial effects that the extrusion plate is installed on the clamp, and the multiple protruding blocks are installed on the extrusion plate, so that the friction force between the clamp and a PVC film can be increased, the PVC film can be stably clamped without large clamping force, the PVC film is prevented from being damaged by clamping, the clamping stability is high, use is convenient, and the PVC film clamping device is suitable for popularization and application. And therefore, the use economy is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic manufacturing, in particular to a bidirectional stretching device for producing and conveying PVC decorative films. Background Art

[0002] Biaxial stretching is a relatively advanced plastic film production process. The plastic film obtained by biaxial stretching has a smaller thickness and better performance. When biaxial stretching is performed on PVC film, a biaxial stretching device is generally used.

[0003] The biaxial stretching device in the prior art is generally composed of a machine body, a conveyor belt, a cylinder, stretching rollers, a spring rod and other structures. When in use, by starting the cylinder to operate, the two stretching rollers can be pushed downward. When they come into contact with the PVC film, their two sides will come into contact with the clamp, so that the stretching rollers will move to both sides, and at the same time, the spring rods can be pulled to extend to both sides, thereby pushing the clamp to perform biaxial stretching on the PVC film.

[0004] However, in actual use, when the clamp clamps the PVC film and then stretches it, if the clamping force of the clamp is large, the PVC film will be squeezed and damaged at the clamped position; when the clamping force is small, the PVC film will separate from the clamp during biaxial stretching, making it inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a biaxial stretching device for producing and conveying PVC decorative films, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bidirectional stretching device for producing and conveying PVC decorative film, comprising a machine body, a conveyor belt being installed inside the machine body, limit grooves being provided on both the front and rear sides of the machine body, two limit blocks being slidably connected inside the limit grooves, and mounting frames being fixedly connected to the adjacent sides of the limit blocks on the front and rear sides, a plurality of electric telescopic rods being fixedly connected to the upper side of the mounting frame, a mounting plate being fixedly connected to the bottom end of the electric telescopic rod, and an extrusion plate being provided at the bottom end of the mounting plate.

[0007] Preferably, slots are provided on both left and right sides of the mounting plate, connecting plates are fixedly connected to both left and right sides of the top of the extrusion plate, and plug blocks are fixedly connected to adjacent sides of the two connecting plates.

[0008] Preferably, a plurality of slots are provided on the front and rear sides of the conveyor belt, a sleeve is fixedly connected to the bottom end of the limit block, a sliding groove is provided inside the sleeve, a pull rod is slidably connected inside the sliding groove, a spring is sleeved on the outside of the pull rod, a slider is fixedly connected to the adjacent sides of the two pull rods, and a block is fixedly connected to the other end of the slider.

[0009] Preferably, the front and rear sides of the mounting frame are respectively slidably connected to the front and rear sides of the inner wall of the body, and the outside of the mounting plate is slidably connected to the inner side of the mounting frame.

[0010] Preferably, the inner side of the connecting plate fits with the outer side of the mounting plate, the side of the slot away from the connecting plate is designed as an arc, the slot matches the plug-in block, and the plug-in block is engaged with the slot.

[0011] Preferably, the outside of the sleeve is slidably connected to the inside of the body, and the outside of the slider is slidably connected to the inside of the slide groove.

[0012] Preferably, one end of the spring is fixedly connected to the inner wall of the slide groove, and the other end of the spring is fixedly connected to a side of the electric telescopic rod away from the clamping block.

[0013] Preferably, every two of the card blocks form a group, and the two card blocks in each group are symmetrically designed.

[0014] Preferably, the separated sides of the two card blocks are designed as arcs, and the adjacent sides of the two card blocks are designed as rectangular blocks. The card blocks match the card slots, and the card blocks are engaged with the card slots.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model proposes a bidirectional stretching device for producing and conveying PVC decorative films. By installing an extrusion plate on a clamp, and installing a plurality of protrusions on the extrusion plate, the friction between the clamp and the PVC film can be increased, and the PVC film can be stably clamped without using a large clamping force, thereby not only avoiding the PVC film from being damaged by clamping, but also making the clamping stability higher, making it more convenient to use and more economical to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 For this utility model Figure 2 Structural cross-section at AA in the middle;

[0020] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the sleeve structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the conveyor belt of the utility model;

[0023] Figure 7 For this utility model Figure 6 Structural cross-section at the middle BB;

[0024] Figure 8 For this utility model Figure 7 Enlarged view of point B in the middle;

[0025] Fig. 9 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0026] Fig.10 For this utility model Fig. 9 Structural cross-section at CC.

[0027] In the figure: 1. body; 2. conveyor belt; 3. card slot; 4. limit slot; 5. limit block; 6. mounting frame; 7. electric telescopic rod; 8. mounting plate; 9. slot; 10. plug block; 11. connecting plate; 12. extrusion plate; 13. sleeve; 14. slide groove; 15. pull rod; 16. spring; 17. slider; 18. card block. DETAILED DESCRIPTION

[0028] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0029] Embodiment 1

[0030] See also Figures 1 to 10The utility model provides a technical solution: a bidirectional stretching device for producing and conveying PVC decorative film, comprising a machine body 1, a conveyor belt 2 is installed inside the machine body 1, and the conveyor belt 2 can convey the PVC film produced by the machine body 1, and the front and rear sides of the machine body 1 are provided with limit grooves 4, and the inside of the limit groove 4 is slidably connected with two limit blocks 5, and the limit blocks 5 are designed in an "L" shape. The limit groove 4 limits the internal limit blocks 5, so that the limit blocks 5 will not be separated from the inside of the limit groove 4, and the adjacent sides of the limit blocks 5 on the front and rear sides are fixedly connected with mounting frames 6, and the front and rear sides of the mounting frames 6 are respectively slidably connected to the front and rear sides of the inner wall of the machine body 1. On the side, the body 1 limits the internal mounting frame 6, so that the mounting frame 6 can slide up and down smoothly. A plurality of electric telescopic rods 7 are fixedly connected to the upper side of the mounting frame 6, and a mounting plate 8 is fixedly connected to the bottom end of the electric telescopic rod 7. By starting the electric telescopic rod 7, the mounting plate 8 can be pushed to move downward, and the outer side of the mounting plate 8 is slidably connected to the inner side of the mounting frame 6. The mounting frame 6 limits the mounting plate 8, so that the mounting plate 8 can slide smoothly. An extrusion plate 12 is provided at the bottom end of the mounting plate 8, and a protrusion is provided at the bottom end of the extrusion plate 12, so that when the friction between the extrusion plate 12 and the PVC film is large.

[0031] When the PVC film needs to be biaxially stretched, the electric telescopic rod 7 is started to push the mounting plate 8 downward, so that the mounting plate 8 can drive the extrusion plate 12 to fit the upper surface of the PVC film. When the two mounting frames 6 move away from each other, the extrusion plate 12 can stably pull the PVC film for biaxial stretching, which not only avoids the PVC film from being clamped and damaged, but also makes the clamping stability higher, making it more convenient to use and more economical to use.

[0032] Embodiment 2

[0033] On the basis of Example 1, in order to facilitate the replacement of the extrusion plate 12, slots 9 are opened on both sides of the mounting plate 8, and connecting plates 11 are fixedly connected to the left and right sides of the top of the extrusion plate 12. The inner side of the connecting plate 11 fits with the outer side of the mounting plate 8, so that the extrusion plate 12 is installed more stably, and the adjacent sides of the two connecting plates 11 are fixedly connected with plug blocks 10. The side of the slot 9 away from the connecting plate 11 is designed as an arc, so that the plug block 10 can easily enter the interior of the slot 9, the slot 9 matches the plug block 10, and the plug block 10 is engaged with the slot 9.

[0034] When the extrusion plate 12 needs to be installed, the top of the extrusion plate 12 is fitted with the bottom of the mounting plate 8, and the connecting plate 11 is then fitted with both sides of the mounting plate 8, so that the plug block 10 is inserted into the interior of the slot 9. During this process, the plug block 10 can be squeezed and deformed by the slot 9, and then when the plug block 10 makes a reset movement, the plug block 10 can be filled in the interior of the slot 9, and then can be engaged with the slot 9, so that the extrusion plate 12 can be stably installed. Conversely, the extrusion plate 12 can be conveniently disassembled by pulling the plug block 10 out of the slot 9.

[0035] Embodiment 3

[0036] On the basis of the second embodiment, in order to ensure that the PVC film can maintain the stretched state after being stretched, a plurality of slots 3 are provided on the front and rear sides of the conveyor belt 2, and a sleeve 13 is fixedly connected to the bottom end of the limit block 5, and the outer part of the sleeve 13 is slidably connected to the inside of the body 1, and the body 1 limits the sleeve 13, so that the sleeve 13 can slide smoothly, and a slide groove 14 is provided inside the sleeve 13, and a pull rod 15 is slidably connected to the inside of the slide groove 14, and the slide groove 14 limits the internal pull rod 15, so that it will not deviate when moving, and a spring 16 is sleeved on the outside of the pull rod 15, and a slider 17 is fixedly connected to the adjacent sides of the two pull rods 15, and the outer part of the slider 17 is slidably connected to the inside of the slide groove 14, and the slide groove 14 limits the slider 17, so that the slide The block 17 can slide smoothly, and the other end of the slider 17 is fixedly connected with a card block 18, one end of the spring 16 is fixedly connected to the inner wall of the slide groove 14, and the other end of the spring 16 is fixedly connected to the side of the electric telescopic rod 7 away from the card block 18. Every two card blocks 18 form a group, and the two card blocks 18 in each group are symmetrically designed, the separated sides of the two card blocks 18 are designed as arcs, and the adjacent sides of the two card blocks 18 are designed as rectangular blocks. The card blocks 18 match the card slots 3, and the card blocks 18 are engaged with the card slots 3, so that the two card blocks 18 can move to the separated side, so that the two mounting frames 6 can drive the PVC film to be bidirectionally stretched, and after the stretching is completed, the rectangular block of the card block 18 can be engaged with the inside of the card slot 3, so as to maintain the stretched state of the PVC film.

[0037] When the two mounting brackets 6 move toward the separated side, the mounting bracket 6 can drive the sleeves 13 on the left and right sides to move toward the separated side through the limit block 5, so that the sleeve 13 can drive the blocks 18 on the left and right sides to move toward the separated side, thereby making the arc of the block 18 detach from the inside of the slot 3, and push the slider 17 to squeeze the spring 16 to produce a century, and then when stretched to a suitable position, the spring 16 can make a reset movement, so that the spring 16 can push the block 18 to engage with the inside of the slot 3 through the slider 17. At this time, if the PVC film makes a reset movement, the rectangular block of the block 18 will not detach from the inside of the slot 3, thereby maintaining the stretched state of the PVC film, thereby making the PVC film stretching effect better, thereby making it more economical to use.

[0038] In actual use, firstly, the top of the extrusion plate 12 is fitted with the bottom end of the mounting plate 8, and then the connecting plate 11 is fitted with the two sides of the mounting plate 8, so that the plug block 10 is inserted into the interior of the slot 9. In this process, the plug block 10 can be squeezed and deformed by the slot 9, and then when the plug block 10 makes a reset movement, the plug block 10 can be filled in the interior of the slot 9, and then can be engaged with the slot 9, so that the extrusion plate 12 can be stably installed, and then by starting the operation of the electric telescopic rod 7, the electric telescopic rod 7 can push the mounting plate 8 to move downward, so that the mounting plate 8 can drive the extrusion plate 12 to fit with the upper surface of the PVC film, and then when the two mounting frames 6 move away from each other, the extrusion plate 12 can stably pull the PVC film for bidirectional stretching, thereby not only avoiding the PVC film from being clamped and damaged, It also makes the clamping stability higher, making it more convenient to use, and thus making it more economical to use. At this time, the mounting frame 6 can drive the sleeves 13 on the left and right sides to move away from each other through the limit block 5, so that the sleeve 13 can drive the blocks 18 on the left and right sides to move away from each other, so that the arc of the block 18 can be separated from the inside of the slot 3, and push the slider 17 to squeeze the spring 16 to produce a century, and then when stretched to a suitable position, the spring 16 can make a reset movement, so that the spring 16 can push the block 18 to engage with the inside of the slot 3 through the slider 17. At this time, if the PVC film makes a reset movement, the rectangular block of the block 18 will not be separated from the inside of the slot 3, and then the stretched state of the PVC film can be maintained, so that the PVC film stretching effect is better, and thus the economical to use is higher.

[0039] 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 biaxial stretching device for producing and conveying PVC decorative film, comprising a machine body (1), wherein a conveyor belt (2) is installed inside the machine body (1), characterized in that: The body (1) is provided with limit slots (4) on both the front and rear sides thereof, two limit blocks (5) are slidably connected inside the limit slots (4), and adjacent sides of the limit blocks (5) on the front and rear sides are fixedly connected with mounting frames (6), the upper side of the mounting frames (6) is fixedly connected with a plurality of electric telescopic rods (7), the bottom ends of the electric telescopic rods (7) are fixedly connected with mounting plates (8), and the bottom end of the mounting plates (8) is provided with a pressing plate (12).

2. A biaxial stretching device for producing and conveying PVC decorative film according to claim 1, characterized in that: Slots (9) are provided on both the left and right sides of the mounting plate (8), connecting plates (11) are fixedly connected to both the left and right sides of the top of the extrusion plate (12), and plug blocks (10) are fixedly connected to the adjacent sides of the two connecting plates (11).

3. A biaxial stretching device for producing and conveying PVC decorative film according to claim 2, characterized in that: The conveyor belt (2) is provided with a plurality of slots (3) on both the front and rear sides; the bottom end of the limit block (5) is fixedly connected with a sleeve (13); a slide groove (14) is provided inside the sleeve (13); a pull rod (15) is slidably connected inside the slide groove (14); a spring (16) is sleeved on the outside of the pull rod (15); a slider (17) is fixedly connected to the adjacent sides of the two pull rods (15); and a block (18) is fixedly connected to the other end of the slider (17).

4. The biaxial stretching device for producing and conveying PVC decorative film according to claim 1, characterized in that: The front and rear sides of the mounting frame (6) are respectively slidably connected to the front and rear sides of the inner wall of the machine body (1), and the outside of the mounting plate (8) is slidably connected to the inside of the mounting frame (6).

5. The biaxial stretching device for producing and conveying PVC decorative film according to claim 2, characterized in that: The inner side of the connecting plate (11) is fitted with the outer side of the mounting plate (8); the side of the slot (9) away from the connecting plate (11) is designed as an arc; the slot (9) matches the plug-in block (10); and the plug-in block (10) is engaged with the slot (9).

6. The biaxial stretching device for producing and conveying PVC decorative film according to claim 3, characterized in that: The outside of the sleeve (13) is slidably connected to the inside of the machine body (1), and the outside of the sliding block (17) is slidably connected to the inside of the sliding groove (14).

7. The biaxial stretching device for producing and conveying PVC decorative film according to claim 3, characterized in that: One end of the spring (16) is fixedly connected to the inner wall of the slide groove (14), and the other end of the spring (16) is fixedly connected to a side of the electric telescopic rod (7) away from the block (18).

8. The biaxial stretching device for producing and conveying PVC decorative film according to claim 3, characterized in that: Every two of the card blocks (18) form a group, and the two card blocks (18) in each group are symmetrically designed.

9. The biaxial stretching device for producing and conveying PVC decorative film according to claim 3, characterized in that: The separated sides of the two card blocks (18) are designed as arcs, and the adjacent sides of the two card blocks (18) are designed as rectangular blocks. The card blocks (18) match the card slots (3), and the card blocks (18) are engaged with the card slots (3).

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