CN215203437U

CN215203437U - Polytetrafluoroethylene protective clothing surface fabric processing equipment

Info

Publication number: CN215203437U
Application number: CN202023048990.6U
Authority: CN
Inventors: 徐志梁; 徐掌平; 罗文春; 施亦斐
Original assignee: Zhejiang Saixun Environmental Protection Technology Co ltd
Current assignee: Zhejiang Saixun Environmental Protection Technology Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-12-17
Anticipated expiration: 2030-12-17

Abstract

The utility model relates to a tensile equipment technical field of film, specifically be a polytetrafluoroethylene protective clothing surface fabric processing equipment, including left frame and right frame, install left chain in the frame of a left side, right chain in the frame of a right side, the interval setting is controlled to the right side part of left side chain and the left side part of right chain and forms the passageway of marcing that supplies polytetrafluoroethylene base band to advance forward in the interval department, install the left side that can go up and down on the chain link of left side chain and compress tightly the locating piece, still install in the frame of a left side with left chain can walk in step and be used for supplying polytetrafluoroethylene base band left side limit portion lower surface department to support and cooperate a left side to compress tightly the left side walking end plate that the locating piece pressed tightly polytetrafluoroethylene base band left side limit portion, install the right side that can go up and down on the chain link of right side and compress tightly the right side walking bottom plate that presss from both sides tight polytetrafluoroethylene base band right side limit portion with the right side chain that is used for supplying polytetrafluoroethylene base band right side limit portion lower surface department to support and cooperate the right side locating piece to press tightly pressing tightly polytetrafluoroethylene base band right side limit portion that right side locating piece can walk in step is still installed in the frame The bottom plate has high production efficiency.

Description

Polytetrafluoroethylene protective clothing surface fabric processing equipment

Technical Field

The utility model relates to a film stretching equipment technical field specifically is a polytetrafluoroethylene protective clothing surface fabric processing equipment.

Background

The polytetrafluoroethylene protective clothing fabric is a commonly used film product which is used as one layer of the protective clothing, namely a PT66E film, the existing method for producing the film is carried out by adopting a method of stretching a raw material base band in left and right directions, for example, the application number 201720460569.5 discloses a bidirectional synchronous stretching device, which belongs to the technical field of film stretching equipment, the bidirectional synchronous stretching device is arranged in bilateral symmetry and comprises a base, two strip-shaped rails and a transmission chain clamp, wherein the strip-shaped rails are provided with a preheating section, a stretching section and a shaping section from front to back, the automatic preheating device is characterized in that sliding rails matched with the preheating section and the shaping section are arranged on the lower sides of the two ends of the preheating section and the shaping section respectively, the strip-shaped track is provided with an inner side rail and an outer side rail, a transmission device is arranged between the inner side rail and the outer side rail, a speed regulating motor is arranged on the transmission device, a transmission chain clamp is fixed at the upper end of the transmission device, and the transmission chain clamp is connected with the inner side rail and the outer side rail in a sliding mode; the hinge joint of the stretching section and the shaping section and the tail end of the shaping section are provided with telescopic pieces.

The existing mode of advancing and stretching the film by clamping two sides of the transmission chain clamp is widely adopted, but the existing transmission chain clamp adopts an M-shaped structure, only can stretch one film, but cannot continuously stretch the film, and the use of the clamp needs to be manually adjusted every time, so that the automation degree is not high, and the production efficiency is not enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a polytetrafluoroethylene protective clothing surface fabric processing equipment that production efficiency is high.

The above technical purpose of the present invention can be achieved by the following technical solutions: a polytetrafluoroethylene protective clothing fabric processing device comprises a left rack and a right rack, wherein a left chain which walks back and forth is installed on the left rack, a right chain which walks back and forth is installed on the right rack, the right part of the left chain and the left part of the right chain are arranged at left and right intervals and form a traveling channel for a polytetrafluoroethylene tape to travel forward at intervals, a plurality of left compression positioning blocks which follow the left chain and travel together are installed on chain links of the left chain, are used for abutting against the upper surface of the left side edge of the polytetrafluoroethylene tape and can lift, a left traveling bottom plate which can synchronously travel with the left chain and is used for supporting the lower surface of the left side edge of the polytetrafluoroethylene tape and is matched with the left compression positioning blocks to clamp the left side edge of the polytetrafluoroethylene tape is further installed on the left rack, install a plurality of follow on the chain link of right chain is used for supporting pressing at the right side that polytetrafluoroethylene base area right side limit portion upper surface department and can go up and down that is used for walking together and compresses tightly the locating piece, still install in the frame of the right side and can supply polytetrafluoroethylene base area right side limit portion lower surface department to support and cooperate with what right chain was walked in step right side press from both sides the right side and press from both sides the right side walking end flat board of tight polytetrafluoroethylene base area right side limit portion.

Preferably, the left and right distances of at least one section of the advancing passage are gradually increased from back to front.

As right the utility model discloses a preferred, be connected with on the left side chain and follow the support frame that left side chain walked together, swing joint has on the support frame the left side compresses tightly the locating piece.

As right the utility model discloses a preferred, be connected with the confession on the support frame the left side compresses tightly the locating piece horizontal direction and passes to erect and be used for the confession the left side compresses tightly the suspension support shaft of locating piece luffing motion.

As right the utility model discloses a preferred, left side frame is located two around the left side chain turn to the position and all are provided with a confession left side chain operation with turn to the sprocket of usefulness, left side frame is located left side chain top still is provided with the confession the left side compresses tightly the locating piece upswing guide board that upwards swings and support, a left side compresses tightly the guide post that is connected with upwards extension on the locating piece, the upswing guide board is the arc guide border portion that tiling form and side position formed and supply guide post lateral part contact to support to lean on, the diameter of arc guide border portion is greater than the diameter on the arc route that left side chain turned to.

As right the utility model discloses a preferred, the centre of a circle of arc guide edge portion is in the same axis from top to bottom with one side the centre of a circle of the arc route that left side chain turned to.

As to the utility model discloses a preferred, the guide post be cylindrical form and rotate connect in on the left side compresses tightly the locating piece.

As to the preferred of the present invention, the peripheral side of the arc guide edge portion is a circular arc-shaped curved surface.

As right the utility model discloses a preferred, the guide post with be connected with elastic buffer between the support frame.

As right the utility model discloses a preferred, the left side compresses tightly the locating piece and is the axial along the cylindric structure of horizontal direction.

The utility model has the advantages that: 1. the production continuity is strong, coiled polytetrafluoroethylene tapes can be continuously discharged and stretched, and the automatic operation of clamping the polytetrafluoroethylene tapes is realized;

2. the conveying effect is good, the stretching effect is also good, and the product quality is improved more;

3. stable structure and safe and reliable operation.

Drawings

FIG. 1 is a schematic perspective view of the left side part of the whole apparatus of example 1;

FIG. 2 is a schematic perspective view of the right side part of the whole apparatus of example 1;

fig. 3 is a partial perspective view of the structure of fig. 1 showing the rear upstream end of the left frame in a turning position.

In the figure, 1, a left frame, 2, a right frame, 3, a left chain, 4, a right chain, 12, a traveling channel, 6, a left pressing and positioning block, 7, a left traveling bottom plate, 8, a right pressing and positioning block, 9, a right traveling bottom plate, 101, a support frame, 102, a suspension support shaft, 66, a steering chain wheel, 77, an upward swing guide plate, 1010, a guide column, 771, an arc guide edge part, 31, an arc path, 88 and an elastic buffer device.

Detailed Description

The following specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

In the embodiment, as shown in fig. 1-3, a polytetrafluoroethylene protective clothing fabric processing device comprises a left frame 1 and a right frame 2, wherein a left chain 3 which travels back and forth is installed on the left frame 1, a right chain 4 which travels back and forth is installed on the right frame 2, a right side part of the left chain 3 and a left side part of the right chain 4 are arranged at left and right intervals and form a traveling channel 12 for a polytetrafluoroethylene-based belt to travel forward at the interval, the left chain 3 and the right chain 4 are of a preferred closed loop structure in a horizontal plane, are of a front-back cyclic reciprocating conveying structure similar to a runway, and are also common in the prior art, and form two turning areas at the front end and the rear end of the traveling channel 12, wherein the rear end of the traveling channel 12 is used as an upstream end and is a position for the initial polytetrafluoroethylene-based belt to enter, the front end of the advancing channel 12 is used as a downstream end and is a position where the polytetrafluoroethylene base belt is stretched left and right to become a thinner finished product film, namely, an outlet position of a thinner protective clothing film fabric is formed after the thicker polytetrafluoroethylene base belt is stretched, the advancing channel 12 is a right-rear forward passing path of the polytetrafluoroethylene base belt, and the initially thicker polytetrafluoroethylene base belt is stretched left and right to become a thinner finished product film in the advancing process to the front end. The structural design of the left and right stretched polytetrafluoroethylene-based tape is as follows: a plurality of left pressing positioning blocks 6 which are used for abutting against the upper surface of the left side edge part of the polytetrafluoroethylene tape and can be lifted and pressed and are capable of walking together with the left chain 3 are installed on the chain link of the left chain 3, the number of the left pressing positioning blocks 6 is proper to surround the whole left chain, namely, a plurality of left pressing positioning blocks 6 are designed, so that a plurality of left pressing positioning blocks 6 can be pressed on the left side part of the polytetrafluoroethylene tape, of course, the left frame 1 is also provided with a left walking bottom plate 7 which can synchronously walk with the left chain 3 and is used for supporting the lower surface of the left side edge part of the polytetrafluoroethylene tape and is matched with the left pressing positioning blocks 6 to clamp the left side edge part of the polytetrafluoroethylene tape, the left pressing positioning blocks 6 and the left walking bottom plate 7 can press the left side edge part of the polytetrafluoroethylene tape up and down, and the left and right chains are stretched by prolonging the distance between the left and right chains in the walking process, the clamping structure advancing along with the chain enables the polytetrafluoroethylene tape to be continuously output in a coiled mode and stretched left and right to form a film finished product, and production efficiency can be greatly improved. In the same way, the structural design on the right frame can refer to the structure on the left side, the same structural design can be adopted, but the left structure can keep the mirror symmetry pattern as far as possible, so the right side has a corresponding structure, a plurality of right pressing positioning blocks 8 which are used for abutting against the upper surface of the right side edge part of the polytetrafluoroethylene tape and can lift are installed on the chain links of the right chain 4 and follow the right chain 4 to walk together, the right frame 2 is also provided with a right walking bottom plate 9 which can synchronously walk with the right chain 4 and is used for supporting the lower surface of the right side edge part of the polytetrafluoroethylene tape and is matched with the right pressing positioning blocks 8 to clamp the right side edge part of the polytetrafluoroethylene tape, the right pressing positioning blocks 8 and the right walking bottom plate 9 can vertically clamp the right side part of the polytetrafluoroethylene tape to carry and stretch, wherein the left walking bottom plate 7 can be installed together with the left pressing positioning blocks 6 through corresponding supporting structures, the left walking bottom plate 7 and the left pressing positioning block 6 can run synchronously, or a left lower side chain below the left chain 3 is further installed on the left rack 1, the left walking bottom plate 7 can be installed on a chain link of the left lower side chain, but the synchronism of the two chains needs to be ensured, because each chain is driven by a front steering sprocket 66 and a rear steering sprocket 66, one of the chains is connected to a motor shaft as a driving sprocket, for example, the left chain 3 and the left lower side chain can be configured with the steering sprockets 66 with the same size at the rear positions and arranged up and down, and then the synchronism of the two chains can be maintained by being connected to the motor shaft of the same motor or other transmission equipment, so that the synchronism of the left walking bottom plate 7 and the left pressing positioning block 6 is ensured. The right side can be equipped with a right walking bottom plate 9 with reference to the structure on the left side. As mentioned above, the left press-and-locate block 6 is liftable because the left press-and-locate block 6 cannot be always clamped with the left-hand bottom plate 7, the left press-and-locate block 6 and the left-hand bottom plate 7 are preferably equal in number and opposite up and down, one left press-and-locate block 6 and one left-hand bottom plate 7 are arranged as a set up with up and down opposite, and in each set of left press-and-locate block 6 and left-hand bottom plate 7, the height of the left-hand bottom plate 7 can be kept constant, but when the left press-and-locate block 6 is at the rear end of the travel path, it should be lifted up first, because at this time, the teflon base band starts to enter, and when he enters a part first and then the left press-and-locate block 6 falls to press the left side of the base band, thus, the automatic press can be realized, and the left side of the base band can not be damaged, the press state is always kept during the travel, and when the base band is stretched in the course and is output downstream, the left pressing positioning block 6 needs to be lifted upwards, so that the film product can be smoothly output, in brief, the left pressing positioning block 6 can be lifted at two turning positions in the front and at the back of the left chain 3, the left pressing positioning block can fall at the two turning positions to achieve the design purpose, and the specific structure will be further described later. And the right side structure is also so, and the right side compresses tightly locating piece 8 also needs can go up and down, and the synchronous lift and the operation of cooperation left side compress tightly locating piece 6 for the better tight baseband left and right sides of clamp of left and right sides limit portion drives and carries and stretch.

As described above, the conveying of the base band is performed by clamping the left and right sides of the base band by the left and right clamping structures, and it is relatively simple to perform the stretching operation, that is, the distance between the right side portion of the left chain and the left side portion of the right chain is controlled to be increased, generally, as long as the distance between the left and right sides of at least one section of the traveling channel 12 is increased gradually, and mainly, the distance between the right side portion of the left chain and the left side portion of the right chain is increased, and since the chains are connected with the pressing and positioning blocks, the distance between the left pressing and positioning block 6 and the right pressing and positioning block 8 is also increased gradually, so as to stretch the base band left and right.

The concrete automatic lifting tightening operation is realized as follows, taking the left side as an example, because the right side is designed to be the same as the left side structure and is symmetrical in left and right mirror images:

be connected with on the left side chain 3 can follow the support frame 101 that the left side chain 3 walked together, swing joint has on the support frame 101 the left side compresses tightly locating piece 6. The support frame 101 may be of different metal frame structures, and the support frame 101 may be fixed to the side of the chain link by means of a pin, a bolt, or direct welding. The movable connection of the left pressing positioning block 6 means that the left pressing positioning block can move at least up and down, and the lifting at the corresponding position can be realized. The specific movable connection structure is as follows: the support frame 101 is connected with a suspension support shaft 102 for allowing the left compression positioning block 6 to pass through the horizontal direction to be erected and used for allowing the left compression positioning block 6 to swing up and down, namely the support frame 101 is required to be fixedly connected with the suspension support shaft 102, the suspension support shaft 102 extends in the horizontal direction, the left compression positioning block 6 is provided with a corresponding shaft hole penetrating in the horizontal direction and sleeved on the suspension support shaft 102, when clamping conveying and stretching are not performed, the left compression positioning block 6 swings and lifts to the right upper side to not clamp the left edge part of a polytetrafluoroethylene base band, when a middle section of a traveling channel needs to clamp the base band, the left compression positioning block 6 swings downwards to be matched with the left traveling bottom plate 7 to clamp the base band for conveying and subsequent stretching, and the suspension support shaft 102 is equivalent to a shaft for allowing the left compression positioning block 6 to swing up and down. In addition, the left walking bottom plate 7 can be directly installed and fixed on the support frame 101 and is positioned below the left pressing positioning block 6, so that synchronous operation can be realized, and in this way, another chain is not needed to be arranged for synchronously driving the left walking bottom plate 7. Of course, these structures are necessary conditions for realizing the automatic lifting of the left pressing positioning block 6, and a corresponding matching structure is also needed to enable the left pressing positioning block to automatically lift, and certainly, the existing electric products such as an air cylinder controlled by automatic control equipment can be adopted, but in this way, a lot of installation parts are needed, and the supporting, steering, the self space and the like of the chain cannot be well realized, so the following optimization scheme of the embodiment is more beneficial to realizing the automatic lifting function.

In the foregoing, a steering sprocket 66 is also mentioned, that is, the left frame 1 is provided with a steering sprocket 66 for operating and steering the left chain 3 at both front and rear steering positions of the left chain 3, and the left chain is tensioned and driven by the front and rear steering sprockets 66. A more specific design is made in this embodiment, specifically, as follows, the left frame 1 is further provided with an upward swing guide plate 77 located above the left chain 3 for the left press positioning block 6 to swing upward and support, the left frame 1 can be connected with a support rod to carry this upward swing guide plate 77, the left press positioning block 6 is connected with an upward extending guide post 1010, the upward swing guide plate 77 is flat and the side part forms an arc-shaped guide edge 771 for the side part of the guide post 1010 to contact and abut against, the diameter of the arc-shaped guide edge 771 is greater than the diameter of the arc-shaped path 31 to which the left chain 3 turns, basically, the upward swing guide plate 77 can be designed into a pie-shaped structure and the diameter is greater than the turning sprocket 66, which makes the diameter of the arc-shaped guide edge 771 greater than the arc-shaped path 31 to which the left chain 3 turns, such a design makes the left pressing and positioning block 6 on the left and right non-turning sections between the front and back of the original left chain from being in a lowering state to a turning position, so that the guide post 1010 is inclined, and the left pressing and positioning block 6 is lifted to swing upwards, wherein in the structural design, the left pressing and positioning block 6 and the guide post 1010 on the non-turning sections are in a vertically suspended state, namely in a lowering state to clamp the base belt, namely the right side part of the left chain, of course, the left side part is also in a vertically lower state, but the left side part is a section of the left chain which returns back before and then, and is in an unloaded state, so that the two sections can be understood as a lowering pressing state. And when the left chain turned to, because the guide post 1010 originally the place turned to the route and is unanimous with arc route 31, but because there was the design of pendulum guide plate 77, make him in the process of turning to touch the arc guide border portion 771 of pendulum guide plate 77 and will be followed the vertical state and extruded to the periphery slope and strut, and the lower part of guide post 1010 will be lifted, thereby drive left side and compress tightly the pendulum on locating piece 6, after turning to the end, because the guide post 1010 does not receive the guide that the pendulum guide plate 77 strut expands, will be because the gravity lower hem just can cooperate the tight baseband left part of left walking bottom plate 7 clamp. Preferably, the center of the arc-shaped guide edge 771 and the center of the arc-shaped path 31 of the left chain 3 on the same side are on the same axis up and down, so that the structure is optimized, the operation can be more stable, the lifting height is not high, the lifting angle of the guide column 1010 is not too large, the general swing amplitude is controlled within 30 degrees, and the left pressing and positioning block 6 is lifted too high as far as possible, so long as the left pressing and positioning block can be separated from the upper surface of the left part of the base band basically.

As mentioned above, the guiding column 1010 can be directly and fixedly connected to the top of the left press positioning block 6, but it can be further optimized that the guiding column 1010 is cylindrical and can be rotatably connected to the left press positioning block 6, the rotation direction here is in horizontal or near horizontal direction, and the axis extending direction of the guiding column 1010 should be kept locked with the left press positioning block 6, the guiding column 1010 can rotate so that the guiding column 1010 can perform rolling friction on the arc guiding edge 771 during the steering process, similar to the structure of a roller, so that the problems of insufficient smooth operation and much noise caused by fixed sliding friction are solved, in particular, an upwardly extending positioning shaft can be further fixedly connected to the top of the left press positioning block 6, the guiding column 1010 is in a structure with upper and lower shaft holes and is sleeved on the positioning shaft, the rolling type guide lifting left pressing positioning block 6 can be realized.

Preferably, the outer peripheral side surface of the arc-shaped guide edge portion 771 is a circular arc-shaped curved surface, and first, the path of the arc-shaped guide edge portion 771 is preferably circular arc-shaped, and further, the side surface thereof is designed to have a curved surface structure that is arched in a lateral circular arc shape, which is also a more optimized structure, thereby reducing mechanical wear and improving the stability of operation.

In order to improve the stability of the upward swinging and falling actions of the left pressing positioning block 6, further, the guide column 1010 and the support frame 101 are connected with an elastic buffer device 88 or a damping device, and a spring structure or an air rod structure is adopted, so that the mechanical impact is reduced, the clamping and the transportation can be better performed, and of course, the elastic force of the elastic buffer device 88 is not too large, otherwise, the use of the normal left pressing positioning block 6 is influenced.

The left pressing positioning block 6 is made of steel blocks with the weight of more than 1 kg, but does not exceed 10 kg, and only can realize stable falling motion. As for the shape of the left press positioning block 6, a cylindrical structure axially along the horizontal direction may be adopted. But further preferred, left side compresses tightly locating piece 6 and can design into an upright platelike structure, the centre is the structure of rectangle, the structure and the axial that the upper and lower side formed the semicircle post are also along the horizontal direction, set up the shaft hole that corresponding horizontal direction link up around in the semicircle post structure of upside and overlap and establish on hanging support shaft 102, it can be fixed with the lateral connecting rod of horizontal extension to hang support shaft 102 both ends between the support frame, the semicircle post structure of upside just can overlap and can also obtain spacingly on hanging support shaft 102, the fixed mode of connecting rod can adopt the bolt, detachable modes such as round pin axle, make things convenient for dismouting maintenance like this.

The right pressing and positioning block 8 on the right side and the connection structure for swinging and falling can adopt the structure of the left pressing and positioning block 6 on the left side of the device and the connection structure for swinging and falling, and the structure is consistent and arranged in mirror symmetry.

The whole equipment is simple to operate, a coiled polytetrafluoroethylene base band is placed at the rear end turning position of the equipment, the machine stops at the beginning, a part of the base band is pulled forwards from a roller in the left and right directions along the axial direction to be used as a first section and is placed at the position of left and right rear turning ready for forward conveying, namely, a left walking bottom plate 7 and a right walking bottom plate 9 which are close to the rear end in the left and right sides of a walking channel, chain turning at the left and right sides is not completed because of the initial section close to the rear, in this time, a left pressing positioning block 6 and a right pressing positioning block 8 which are at the position are lifted by an upper swing table, the left and right edges of the base band are placed on the left walking bottom plate 7 and the right walking bottom plate 9 at the position, then the equipment is started, the left walking bottom plate 7 and the right walking bottom plate 9 at the position support the base band to convey forwards, the steering is immediately finished, the corresponding left pressing and positioning block 6 and the right pressing and positioning block 8 in the same group can fall to press the base band, the left pressing and positioning block 6, the left walking plate 7, the right pressing and positioning block 8 and the right walking plate 9 in each group in the following process can do the same action from non-clamping to clamping the base band, and the action is continuously carried out, and then the stretching in the advancing process can be carried out in the area with the left-right distance expanded in the advancing channel in front. The whole process is more automatic, and the efficiency is higher. And each group of the left pressing and positioning block 6, the left walking bottom plate 7, the right pressing and positioning block 8 and the right walking bottom plate 9 which are conveyed forwards to the downstream of the outlet can be continuously circulated back to carry out the next circle of operation flow. The track of the operation is that the left chain runs anticlockwise, and the right chain runs clockwise.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a polytetrafluoroethylene protective clothing surface fabric processing equipment, a serial communication port, including left frame (1) and right frame (2), install a left chain (3) of making a round trip to walk around in the front on left frame (1), install a right chain (4) of making a round trip to walk around in the front on right frame (2), the right side part of left side chain (3) with the interval sets up and forms at the interval department about the left side part of right chain (4) and supplies polytetrafluoroethylene base area marcing forward marcing passageway (12), install a plurality of follow on the chain link of left side chain (3) walk together be used for to press at polytetrafluoroethylene base area left side limit portion upper surface department and can the left side compress tightly locating piece (6), still install on left frame (1) and can walk with left side chain (3) in step be used for supplying polytetrafluoroethylene base area left side limit portion lower surface department to support and cooperate left side locating piece (6) compress tightly locating piece (6) ) Press from both sides the end flat board (7) of walking on the left side of tight polytetrafluoroethylene base area left side limit portion, install a plurality of follow on the chain link of right side chain (4) be used for of walking together support press at polytetrafluoroethylene base area right side limit portion upper surface department and can go up and down right side compress tightly locating piece (8), still install on right side frame (2) and can walk in step with right side chain (4) be used for supplying polytetrafluoroethylene base area right side limit portion lower surface department to support and cooperate the right side compresses tightly end flat board (9) of walking on the right side of locating piece (8) clamp tight polytetrafluoroethylene base area right side limit portion.

2. The processing equipment for the polytetrafluoroethylene protective clothing fabric according to claim 1, wherein the left-right spacing of at least one section of the traveling channel (12) is gradually increased from back to front.

3. The processing equipment for the polytetrafluoroethylene protective clothing fabric according to claim 1, wherein a supporting frame (101) capable of walking along with the left chain (3) is connected to the left chain (3), and the left pressing positioning block (6) is movably connected to the supporting frame (101).

4. The processing equipment for the polytetrafluoroethylene protective clothing fabric according to claim 3, wherein a suspension support shaft (102) for the left pressing positioning block (6) to pass through and be erected in the horizontal direction and for the left pressing positioning block (6) to swing up and down is connected to the support frame (101).

5. The processing equipment of the polytetrafluoroethylene protective clothing fabric according to claim 4, the left frame (1) is provided with a steering chain wheel (66) for the left chain (3) to run and steer at the front and the rear steering positions of the left chain (3), an upper swing guide plate (77) which is used for the left pressing positioning block (6) to swing upwards and support is also arranged above the left chain (3) of the left frame (1), the left pressing positioning block (6) is connected with a guide post (1010) extending upwards, the upper swing guide plate (77) is in a flat laying shape, the side part forms an arc-shaped guide edge part (771) for the side part of the guide post (1010) to contact and lean against, the diameter of the arc-shaped leading edge part (771) is larger than the diameter of the arc-shaped path (31) to which the left chain (3) turns.

6. The processing equipment for the polytetrafluoroethylene protective clothing fabric according to claim 5, wherein the circle center of the arc-shaped guide edge portion (771) and the circle center of the arc-shaped path (31) of the left chain (3) on the same side are on the same axis up and down.

7. The processing equipment of the polytetrafluoroethylene protective clothing fabric according to claim 5, wherein the guide column (1010) is cylindrical and is rotatably connected to the left pressing positioning block (6).

8. The processing equipment of the polytetrafluoroethylene protective clothing fabric according to claim 5, wherein the peripheral side face of the arc-shaped guide edge portion (771) is a circular arc-shaped curved face.

9. The processing equipment for the polytetrafluoroethylene protective clothing fabric according to claim 5, wherein an elastic buffer device (88) is connected between the guide column (1010) and the support frame (101).

10. The processing equipment for the polytetrafluoroethylene protective clothing fabric according to claim 1, wherein the left compression positioning block (6) is of a cylindrical structure axially along the horizontal direction.