Sheet conveying assembly

Abstract

The utility model relates to a sheet conveying assembly which comprises a sheet feeding unit. The sheet feeding unit is provided with an initial feeding station and a final feeding station; a feeding head cutting station is arranged at the initial feeding station or between the initial feeding station and the final feeding station; a head cutting unit is arranged at the feeding and head cutting station; the device is reasonable in design, compact in structure and convenient to use.

Description

Technical Field

[0001] This utility model relates to a sheet conveying assembly. Background Technology

[0002] A winding machine is used to wind up PP, PVC or other flexible strip sheets of a set length. During winding, in order to ensure a constant length, the ends of the strip sheet need to be cut. The problem with existing technology is that it cannot achieve automatic sizing and cutting of the sheet.

[0003] At the initial stage of winding, the sheet needs to be manually wound onto the sleeve one or several times before it can be automatically wound, resulting in a low degree of automation.

[0004] During the winding process, the existing sheet material, after being cut, falls due to gravity, causing vibrations that affect the beginning and end of the winding and may even cause skewing.

[0005] How to solve the aforementioned drawbacks of existing technologies has become an urgent technical problem to be solved. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a sheet conveying assembly.

[0007] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0008] To achieve continuous automatic output of strip sheets, a sheet conveying assembly includes a sheet feeding unit; the sheet feeding unit has an initial feeding station and a final feeding station;

[0009] A feeding cutter station is set up at the initial feeding station or between the initial feeding station and the final feeding station;

[0010] A cutting unit is installed at the feeding and cutting station.

[0011] As a further improvement to the above technical solution:

[0012] To achieve clamping, fixed-size coiling, and precise feeding of sheet materials, the sheet feeding unit includes an auxiliary feeding guide rail; an auxiliary moving slide is provided on the auxiliary feeding guide rail; and clamping auxiliary rollers and feeding auxiliary rollers are provided at the front and rear of the auxiliary moving slide.

[0013] A movable pressure head is provided on the auxiliary moving slide, and the movable pressure head is close to the clamping auxiliary roller to clamp the sheet.

[0014] The movable pressure head is positioned above the clamping auxiliary roller;

[0015] To increase the clamping force, the lower end face of the auxiliary roller is curved and has a textured surface.

[0016] In order to achieve cutting of the front and rear ends, facilitate normal feeding, and reduce the suspension distance during feeding, the cutting unit includes a fixed blade holder and a movable cutting head seat that moves perpendicularly to the sheet conveying plane and is mounted on the fixed blade holder.

[0017] The movable cutting head has a C-shaped cut for dimensional interlocking of sheets;

[0018] The C-shaped cut has a chamfered opening.

[0019] The initial feeding station receives the sheet material to be cut; the final feeding station sends the cut sheet material into the sleeve installation station.

[0020] In order to control the minimum diameter of the sheet, a winding spindle is set at the sleeve installation station; a sleeve for winding the sheet is fitted on the winding spindle.

[0021] To enable automatic winding of the sheet onto the sleeve, a radial push rod is provided on the winding spindle, and a movable pressure finger is provided on the radial push rod; the movable pressure finger is arranged parallel to one side of the winding spindle.

[0022] An auxiliary support telescopic rod is installed between the initial feeding station and the final feeding station. The auxiliary support telescopic rod moves perpendicularly to the sheet conveying plane.

[0023] In order to achieve a tight fit between the various coils of the sheet, an auxiliary lifting pressure roller is installed on one side of the main shaft of the coil; when the coil is finished, the sheet passing through the auxiliary support telescopic rod and the auxiliary lifting pressure roller is tangent to the coiled sheet roll.

[0024] To enable movement control, the auxiliary moving slide is connected to an auxiliary feeding push rod that is parallel to the auxiliary feeding guide rail.

[0025] In order to cut the sheet, an upper blade and a lower blade are respectively provided at the upper and lower parts of the C-shaped cut.

[0026] In order to cut the sheet, a lifting push rod is provided in the movable cutting head seat;

[0027] The lower end of the lifting push rod is connected to the upper cutter body.

[0028] In order to achieve auxiliary feeding and avoid bending of the sheet, a feeding support seat is set on the input side of the initial feeding station; several lower support rollers and upper pressure roller groups are staggered on the feeding support seat.

[0029] This utility model protects an improvement on a sheet conveying assembly. In general, it features a reasonable design, low cost, robustness, durability, safety, reliability, simple operation, time and labor saving, cost savings, compact structure, and ease of use. This utility model achieves automated sheet conveying, facilitating the coiling process. It can achieve fixed-size coiling, preventing excessive bending of the sheet and ensuring smooth initial and subsequent coiling. It automates the initial coiling turn, ensuring non-slip feeding. Furthermore, auxiliary support is provided via telescopic rods to accommodate different coil curvature radii. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the auxiliary support telescopic rod of this utility model.

[0031] Figure 2 This is a schematic diagram of the feeding and cutting head station structure of this utility model.

[0032] Figure 3 This is a schematic diagram of the movable cutting head support structure of this utility model.

[0033] Figure 4 This is a schematic diagram of the upper blade body structure of this utility model.

[0034] Figure 5 This is a schematic diagram of the structure of the winding spindle of this utility model.

[0035] The components are as follows: 201, auxiliary support telescopic rod; 202, auxiliary lifting pressure roller; 203, auxiliary feeding guide rail; 204, auxiliary moving slide; 205, feeding auxiliary roller; 206, clamping auxiliary roller; 207, movable pressure head; 208, initial feeding station; 209, final feeding station; 210, feeding cutting station; 211, cutting unit; 212, movable cutting seat; 213, C-shaped cut; 214, chamfered opening; 215, fixed knife holder; 216, auxiliary feeding push rod; 217, lower knife body; 218, upper knife body; 219, lifting push rod; 220, feeding support seat; 221, lower support roller; 222, upper pressure roller group; 402, coiling spindle; 403, radial push rod; 404, movable pressure finger. Detailed Implementation

[0036] like Figure 1-5 As shown, the sheet conveying assembly of this embodiment, as one of the main components of the winding machine, includes a sheet feeding unit; the sheet feeding unit has an initial feeding station 208 and an end feeding station 209; thereby realizing the initial feeding of continuous sheets.

[0037] A feeding cutter station 210, such as B3, is provided at B2 of the initial feeding station 208 or between the initial feeding station 208 and the final feeding station 209, such as B1. The preferred position is B3, thereby achieving spatial misalignment.

[0038] A cutting unit 211 is provided at the feeding and cutting station 210 to cut the ends of the sheet material, thereby facilitating the calculation of the length of the sheet material after coiling.

[0039] The sheet feeding unit includes an auxiliary feeding guide rail 203, which is a linear guide rail, such as a dovetail groove or an I-beam guide rail; an auxiliary moving slide 204 is provided on the auxiliary feeding guide rail 203, which can move on the guide rail; a clamping auxiliary roller 206 and a feeding auxiliary roller 205 are provided at the front and rear of the auxiliary moving slide 204.

[0040] An active pressure head 207 is provided on the auxiliary moving slide 204. The active pressure head 207 is close to the clamping auxiliary roller 206 to clamp the sheet, thereby driving the sheet to be pulled to position B1.

[0041] The movable pressure head 207 is positioned above the clamping auxiliary roller 206, thereby enabling the sheet material to be coiled onto the sleeve.

[0042] The lower end face of the clamping auxiliary roller 206 is curved and has a textured surface. The textured surface increases friction, and the curved surface increases the contact area, thereby preventing slippage and better clamping the sheet forward.

[0043] As a specific improvement, the cutting unit 211 includes a fixed blade holder 215 that is fixedly arranged and a movable cutting head seat 212 that moves perpendicularly to the sheet conveying plane and is arranged on the fixed blade holder 215.

[0044] The movable cutter head 212 has a C-shaped cut 213 for dimensional engagement of the sheet, thereby facilitating engagement of the middle of the moving sheet;

[0045] The C-shaped cutout 213 has a chamfered opening 214, thereby increasing compatibility.

[0046] The initial feeding station 208 receives the sheet material to be cut; the final feeding station 209 sends the cut sheet material into the sleeve installation station.

[0047] A coiling spindle 402 is provided at the sleeve installation station; a sleeve for coiling sheet material is fitted on the coiling spindle 402; the coiling spindle 402 drives the sleeve to rotate, thereby pulling and coiling the sheet.

[0048] A radial push rod 403 is provided on the main shaft 402 of the coil, and a movable pressure finger 404 is provided on the radial push rod 403. The movable pressure finger 404 is arranged parallel to one side of the main shaft 402 of the coil, so as to press on the end of the sheet, and then the radial centripetal movement drives the coil.

[0049] An auxiliary support telescopic rod 201 is installed between the initial feeding station 208 and the final feeding station 209. The auxiliary support telescopic rod 201 moves vertically relative to the sheet conveying plane, which lifts the sheet during coiling, thereby reducing the suspended section and vibration, and thus achieving better coiling, especially for the support of the end section, to avoid skewing.

[0050] An auxiliary lifting pressure roller 202 is provided on one side of the main winding shaft 402; when the winding reaches a set number of turns, the auxiliary support telescopic rod 201 extends out to support the lower surface of the sheet; when the winding ends, the sheet passing through the auxiliary support telescopic rod 201 and the auxiliary lifting pressure roller 202 is tangent to the wound sheet roll.

[0051] The auxiliary moving slide 204 is connected to an auxiliary feeding push rod 216 that is parallel to the auxiliary feeding guide rail 203, thereby driving the slide to move linearly along the guide rail.

[0052] An upper blade body 218 and a lower blade body 217 are respectively provided in the upper and lower parts of the C-shaped cut 213;

[0053] A lifting push rod 219 is provided in the movable head cutter 212;

[0054] The lower end of the lifting push rod 219 is connected to the upper blade body 218. The lifting push rod 219 drives the upper blade body 218 to move downward and engage with the lower blade body 217 to achieve cutting.

[0055] A feeding support seat 220 is provided on the input side of the initial feeding station 208; several lower support rollers 221 and upper pressure roller groups 222 are staggered on the feeding support seat 220 to achieve auxiliary lifting of the input sheet.

[0056] When the coiling begins, after the auxiliary moving slide 204 reaches the feeding end station 209, the end of the sheet output by the auxiliary moving slide 204 reaches above the sleeve of the coiling spindle 402, and the end of the sheet is located between the movable pressure finger 404 and the sleeve, and the radial push rod 403 is in the extended state.

[0057] Its working principle is as follows: First, the sheet material moves forward under the guidance of the lower support roller 221 and the upper pressure roller group 222 of the feeding support seat 220; at the initial feeding station 208, along the auxiliary feeding guide rail 203, the sheet material reaches the auxiliary moving slide 204, and reaches the clamping auxiliary roller 206 through the feeding auxiliary roller 205; then, the movable pressure head 207 moves downward, pressing the front part of the sheet material onto the clamping auxiliary roller 206; second, under the action of the auxiliary feeding push rod 216, the auxiliary moving slide 204 reaches the feeding cutting head station 210; third, supported by the fixed knife holder 215, the movable cutting head seat 212 moves from position C2 to position C1, and by using the enlarged opening of the chamfered opening 214, the C-shaped cut 213 engages with the front end of the sheet material. Because the sheet material remains straight due to its own hardness and rigidity, it is easy to cut; then, the cutting head unit 211 engages and cuts the sheet material. The lifting push rod 219 drives the upper cutter body 218 and the lower cutter body 217 to engage and cut. Next, the movable cutter head 212 moves from position C1 to position C2, thereby opening the passage so that the auxiliary movable slide 204 can reach position B1 of the feeding endpoint 209. Then, the winding spindle 402 rotates to a set position, driving the movable pressure finger 404 to the corresponding position of the feeding endpoint 209. The radial push rod 403 retracts, causing the movable pressure finger 404 to press down to the end of the sheet above the sleeve. Next, the winding spindle 402 rotates, and at the same time, the auxiliary support telescopic rod 201 and the auxiliary lifting pressure roller 202 drive the strip sheet to continuously wind and coil. Next, after winding to a set number of turns (which can be converted to length), the tail of the sheet is cut again by the movable cutter head 212. Then, the remaining sheet is coiled, and finally, the sleeve with the coiled sheet is removed from the axis.

[0058] This utility model is described in detail for the purpose of making the disclosure clearer, and the prior art will not be listed one by one.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. It is obvious to those skilled in the art that multiple technical solutions of this utility model can be combined. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. All technical contents not described in detail in this utility model are publicly known technologies.

Claims

1. A sheet transport assembly, characterized by: The sheet feeding unit comprises a feeding initial station (208) and a feeding terminal station (209); A feeding tail cutting station (210) is arranged at the feeding initial station (208) or between the feeding initial station (208) and the feeding terminal station (209); A tail cutting unit (211) is arranged at the feeding tail cutting station (210).

2. The sheet transport assembly of claim 1, wherein: The sheet feeding unit comprises an auxiliary feeding guide rail (203); an auxiliary moving slide (204) is arranged on the auxiliary feeding guide rail (203); a clamping auxiliary roller (206) and a feeding auxiliary roller (205) are arranged on the auxiliary moving slide (204) in front and back directions; An active pressing head (207) is arranged on the auxiliary moving slide (204), and the active pressing head (207) is close to the clamping auxiliary roller (206) so as to clamp the sheet.

3. The sheet transport assembly of claim 2, wherein: The active pressing head (207) is arranged above the clamping auxiliary roller (206); The lower end surface of the clamping auxiliary roller (206) is arc-shaped and has a net pattern.

4. The sheet transport assembly of claim 3, wherein: The tail cutting unit (211) comprises a fixed knife holder (215) arranged fixedly and a moving tail cutting seat (212) arranged on the fixed knife holder (215) and vertically moving relative to the sheet conveying plane; The moving tail cutting seat (212) has a c-shaped cutout (213) for size cutting and sheet clamping; The c-shaped cutout (213) has a chamfered opening (214).

5. The sheet transport assembly of claim 4, wherein: The sheet to be cut is received at the feeding initial station (208); the cut sheet is sent to a sleeve mounting station at the feeding terminal station (209); A coiling main shaft (402) is arranged at the sleeve mounting station; a sleeve for coiling the sheet is arranged on the coiling main shaft (402); A radial push rod (403) is arranged on the coiling main shaft (402), and an active pressing finger (404) is arranged on the radial push rod (403); the active pressing finger (404) is arranged in parallel on one side of the coiling main shaft (402); When the auxiliary moving slide (204) reaches the feeding terminal station (209) at the beginning of coiling, the end of the sheet output by the auxiliary moving slide (204) is above the sleeve of the coiling main shaft (402), the end of the sheet is between the active pressing finger (404) and the sleeve, and the radial push rod (403) is in an extended state.

6. The sheet transport assembly of claim 5, wherein: An auxiliary supporting telescopic rod (201) is arranged between the feeding initial station (208) and the feeding terminal station (209), and the auxiliary supporting telescopic rod (201) vertically moves relative to the sheet conveying plane; When the coiling reaches a set number of turns, the auxiliary supporting telescopic rod (201) extends to support the lower surface of the sheet.

7. The sheet transport assembly of claim 6, wherein: An auxiliary lifting pressing wheel (202) is arranged on one side of the coiling main shaft (402); when the coiling is finished, the sheet passing through the auxiliary supporting telescopic rod (201) and the auxiliary lifting pressing wheel (202) is tangent to the coiled sheet roll.

8. The sheet transport assembly of claim 5, wherein: The auxiliary moving slide (204) is connected with an auxiliary feeding push rod (216) parallel to the auxiliary feeding guide rail (203).

9. The sheet transport assembly of claim 5, wherein: An upper knife body (218) and a lower knife body (217) are arranged on the upper and lower parts of the c-shaped cutout (213), respectively; A lifting push rod (219) is arranged in the moving tail cutting seat (212); The lower end of the lifting push rod (219) is connected with the upper knife body (218).

10. The sheet transport assembly of claim 1, wherein: The feeding support seat (220) is arranged on the input side of the feeding initial station (208); the lower support rollers (221) and the upper compression roller groups (222) are arranged staggeredly on the feeding support seat (220).

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