A slot-type photoelectric switch and slot-type encoder structure and packaging method

Abstract

The present invention relates to the field of optoelectronic technology, and specifically to a slot-type photoelectric switch and slot-type encoder structure and packaging method, including a flexible bracket, two lamp beads, a light-transmitting rubber block 1, and two light-transmitting rubber blocks 2. The flexible bracket can play a role of protective support, and the two lamp beads are fixedly connected on both sides of the top surface of the lamp beads, respectively. The light-transmitting rubber block 1 is fixedly connected on the top surface of the flexible bracket, and the two light-transmitting rubber blocks 2 are fixedly connected on both sides of the top surface of the lamp beads. In the present invention, by arranging the light-transmitting rubber block 1 and the light-transmitting rubber block 2 on the top surface of the flexible bracket, firstly installing the transmitting and receiving lamp beads on the flexible bracket, and then preparing the light-transmitting rubber block 1 and the light-transmitting rubber block 2 on the surface of the flexible bracket. Finally, the flexible bracket is bent into a slot-shaped shape. Compared with the traditional slot-type photoelectric switch and slot-type encoder, the plastic shell or metal shell is reduced, and there is no need to open holes in the light-transmitting shell, and the packaging method has relatively fewer steps.

Description

Technical Field

[0001] The invention relates to the field of optoelectronic technology, in particular to a slot-type photoelectric switch and a slot-type encoder structure and a packaging method. Background Art

[0002] The slot photoelectric switch, also known as the U-type photoelectric switch, is a kind of opposite-beam photoelectric switch. It is composed of an infrared emitting tube and an infrared receiving tube, usually installed on both sides of the slot to form a narrow gap. When the detected object passes through the slot, it will block the light inside the slot, thereby triggering the switching action of the photoelectric switch. The slot encoder usually refers to a photoelectric encoder with a slot structure. It converts the mechanical geometric displacement on the output shaft into a pulse or digital quantity through photoelectric conversion. The existing packaging method of the slot photoelectric switch and the slot encoder includes two major steps. First, prepare the photoelectric element including the transmitting end and the receiving end, and then prepare the integrated structure of the light-transmitting shell and the photoelectric element. Before packaging, it is necessary to prepare a plastic shell or a metal shell by using a mold, etc., and it is necessary to open a hole in the light-transmitting shell. The packaging process is relatively complicated, which is not conducive to the rapid packaging of the slot photoelectric switch and the slot encoder. Summary of the invention

[0003] The object of the present invention is to provide a slot-type photoelectric switch and a slot-type encoder structure and a packaging method to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A slot-type photoelectric switch and slot-type encoder structure, comprising a flexible bracket, two lamp beads, a light-transmitting rubber block 1, and two light-transmitting rubber blocks 2;

[0006] The flexible bracket can play a protective supporting role;

[0007] The two lamp beads are fixedly connected to both sides of the top surface of the lamp bead respectively;

[0008] The light-transmitting rubber block is fixedly connected to the top surface of the flexible bracket;

[0009] The two light-transmitting adhesive blocks 2 are respectively fixedly connected to the two sides of the top surface of the lamp bead, and both sides of the light-transmitting adhesive block 1 and one side of the light-transmitting adhesive block 1 corresponding to the light-transmitting adhesive block 2 are provided with inclined surfaces, and an adhesive layer is provided on the inclined surfaces.

[0010] Furthermore, the packaging method of the slot-type photoelectric switch and the slot-type encoder structure includes the following specific packaging steps:

[0011] Step 1: Connect the two lamp beads for transmitting and receiving to the top surface of the flexible bracket through SMT process;

[0012] Step 2: Encapsulate a light-transmitting rubber block 1 and two light-transmitting rubber blocks 2 on the flexible bracket on which the lamp beads have been installed, wherein the light-transmitting rubber block 1 is located in the middle of the flexible bracket, and the inclined surface of the light-transmitting rubber block 2 is aligned with the light-transmitting rubber block 1;

[0013] Step 3: Insert the flexible bracket encapsulated with the light-transmitting adhesive block 1 and the light-transmitting adhesive block 2 into the clamping module;

[0014] Step 4: Transport the positioning module equipped with the flexible bracket to the molding device, extrude the flexible bracket through the molding device, bend the flexible bracket into a groove shape along both sides of the transparent rubber block one, and bond the inclined surface of the transparent rubber block one to the inclined surface of the transparent rubber block two through the adhesive layer.

[0015] Furthermore, after the flexible bracket is bent in step 4 and the light-transmitting adhesive block 1 is bonded to the light-transmitting adhesive block 2, the positioning module can shape the flexible bracket, and after the adhesive layer is firmly bonded, the flexible bracket is taken out of the positioning module.

[0016] Preferably, the positioning module comprises a first support seat, two second support seats, and two plug-in frames;

[0017] The support seat 1 is arranged on the bottom surface of the flexible bracket, and two side surfaces of the support seat 1 are fixedly connected to two connection blocks;

[0018] The two support seats 2 are respectively arranged on both sides of the support seat 1, the inner side surface of the support seat 2 is rotatably connected with two adjacent connecting blocks, and the inner side surface of the bottom of the support seat 2 is fixedly connected with a spring 1;

[0019] The two plug-in frames are respectively slidably connected to the top surfaces of the two support seats. The back surfaces of the two plug-in frames are fixedly connected with a plug-in seat that is slidably connected to the inner side surface of the two support seats. The side surface of the plug-in seat is fixedly connected to one end of an adjacent spring. The top of the side surface of the plug-in seat is fixedly connected with two sliding rods that are slidably connected to the inner side surface of the two support seats.

[0020] Furthermore, the positioning module further includes four rotating rods and four ratchet rods;

[0021] Four rotating rods are fixedly connected to the inner side surfaces of the four connecting blocks respectively, the side surfaces of the rotating rods are rotatably connected to the inner side surfaces of the adjacent second supporting seats, and the side surfaces of the rotating rods are fixedly connected with ratchet rings corresponding to the second supporting seats;

[0022] The four ratchet rods are respectively meshed with the four ratchet rings, the inner side surface of the second support seat is slidably connected to the side surfaces of two adjacent ratchet rods, and the side surfaces of the ratchet rods are fixedly connected with the second spring fixedly connected to the side surfaces of the adjacent sliding rods.

[0023] Preferably, the molding device includes a conveying module and an extrusion module;

[0024] The conveying module can convey the flexible bracket and the clamping module;

[0025] The extrusion module is arranged on the conveying module, and the extrusion module includes a connecting box, two side surfaces of the connecting box are fixedly connected to support frames, an extrusion rod is arranged inside the connecting box, a connecting frame 1 is slidably connected to the side of the extrusion rod, a sliding plate slidably connected to the inner side surface of the connecting box is fixedly connected to the top of the side surface of the connecting frame 1, two abutting frames 1 are fixedly connected to the bottom surface of the connecting frame 1, an opening groove 1 is provided on the bottom surface of the abutting frame 1, and the top of the inner side surface of the opening groove 1 is connected to the inside of the abutting frame 1, a connecting frame 2 slidably connected to the inner side surface of the connecting box is slidably connected to the bottom of the side surface of the connecting frame 1, two abutting frames 2 are fixedly connected to the bottom surface of the connecting frame 2, an opening groove 2 is provided on the bottom surface of the abutting frame 2, and the top of the inner side surface of the opening groove 2 is connected to the inside of the abutting frame 2, and connecting pipes are connected to the tops of the two abutting frames 1 and the two abutting frames 2.

[0026] Furthermore, both sides of the top surface of the connection frame 1 are fixedly connected to a fixing plate 1 that is slidably connected to the side surface of the connection box, and both sides of the top surface of the connection frame 2 are fixedly connected to a fixing plate 2 that is slidably connected to the inner side surface of the connection box;

[0027] A connecting shaft 1 is provided on both sides of the extrusion rod, a connecting gear 1 is fixedly sleeved on the side of the connecting shaft 1, and the connecting gear 1 has two connecting racks 1 in meshing transmission. The two side surfaces of the extrusion rod are fixedly connected to the side of the adjacent connecting rack 1, and the opposite surfaces of the two fixed plates 1 are fixedly connected to the side of the adjacent connecting rack 1. A connecting shaft 2 is provided between the fixed plate 1 and the adjacent fixed plate 2, a connecting gear 2 is fixedly sleeved on the side of the connecting shaft 2, and the connecting gear 2 has two connecting racks 2 in meshing transmission. The opposite back surfaces of the two fixed plates 1 are fixedly connected to the side surfaces of the adjacent connecting racks 2, and the opposite surfaces of the two fixed plates 2 are fixedly connected to the side surfaces of the adjacent connecting racks 2;

[0028] The two inner side surfaces of the connecting box correspond to the connecting shaft 1 and are fixedly connected to two positioning frames 1, both ends of the connecting shaft 1 are fixedly connected to rectangular blocks that are slidably connected to the inner side surfaces of the adjacent positioning frames 1, the two inner side surfaces of the connecting box correspond to the connecting shaft 2 and are fixedly connected to two positioning frames 2, the side surfaces at both ends of the connecting shaft 2 are in contact with the inner side surfaces of the adjacent positioning frames 2, the two side surfaces of the extrusion rod are fixedly connected to two pushing rods 1 that are in contact with the side surfaces of the adjacent connecting shaft 1, and the two side surfaces of the sliding plate are fixedly connected to two pushing rods 2 that are in contact with the side surfaces of the adjacent connecting shaft 2.

[0029] Preferably, the top surface of the extrusion rod is fixedly connected to a sliding block slidably connected to the inner side surface of the connection box, the inner bottom surfaces on both sides of the connection box are fixedly connected to hydraulic rods, and the output end of the hydraulic rod is transmission-connected to an adjustment block fixedly connected to the side surface of the sliding block.

[0030] Preferably, the conveying module includes a base, two side frames, a transmission belt, four transmission rods, two pulling mechanisms, and two support shafts;

[0031] The base can play a supporting role, and the top surface of the base is fixedly connected to the bottom surfaces of the two support frames;

[0032] The two side frames are fixedly connected to the top surface of the base, and a power motor is fixedly connected to the top of the side surface of one side frame;

[0033] The transmission belt is arranged between the two side frames, and a plurality of positioning blocks are fixedly connected to the side of the transmission belt, and the two opposite surfaces of the two support seats are in contact with the side of the adjacent positioning blocks;

[0034] The four transmission rods are all rotatably connected between the two side frames, the inner side of the transmission belt is transmission-connected to the side surfaces of the four transmission rods, and the output end of the power motor is transmission-connected to the end of a transmission rod;

[0035] Two pulling mechanisms are arranged between two side frames;

[0036] The two support shafts are both rotatably connected between the two side frames, and the tops of the side surfaces of the support shafts are in contact with the inner top surface of the transmission belt.

[0037] Furthermore, the pulling mechanism includes a connecting seat, a sliding frame, a connecting rod, and a spring;

[0038] The connecting seat is fixedly connected between the two side frames;

[0039] The sliding frame is slidably connected inside the connecting seat;

[0040] The connecting rod is rotatably connected to the inside of the sliding frame, and the transmission belt passes around the side of the connecting rod;

[0041] The spring three is fixedly connected to the inner side surface of the connecting seat and the inner side surface of the sliding frame.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] By arranging light-transmitting rubber blocks one and two on the top surface of a flexible bracket, first installing transmitting and receiving lamp beads on a flexible bracket such as PFC, and then preparing light-transmitting rubber blocks one and two on the surface of a flexible bracket such as PFC, and finally bending the flexible bracket into a slot-shaped shape, compared with the traditional slot-shaped photoelectric switch and slot-shaped encoder, the plastic shell or metal shell is reduced, and there is no need to open holes in the light-transmitting shell. The plane is directly bent into a slot-shaped structure, the packaging method has relatively few steps, and the packaging method is relatively simple, which is conducive to the rapid packaging of the slot-shaped photoelectric switch and the slot-shaped encoder. At the same time, the functions of the slot-shaped photoelectric switch and the slot-shaped encoder are relatively stable.

[0044] An extrusion rod is arranged inside the connection box. After the flexible bracket and the clamping module are transported to the bottom of the extrusion rod through the transport module, the extrusion rod, the connection frame 1 and the connection frame 2 can be moved downward. The connection frame 2 will first contact the inclined surface of the light-transmitting rubber block 2. The adhesive can be transported to the inclined surface of the light-transmitting rubber block 2 through the inside of the connection frame 2 and the opening groove 2. Then the connection frame 2 is moved upward, and the connection frame 1 is moved downward to abut against the inclined surface of the light-transmitting rubber block 1. The adhesive is transported to the inclined surface of the light-transmitting rubber block 1 through the connection frame 1. Then, the connection frame 1 can be moved downward. By squeezing, the flexible bracket is bent along the bottom of the connecting frame, and then the connecting frame is moved upward to move the squeezing rod downward, and the light-transmitting rubber block is squeezed by the squeezing rod to make the flexible bracket completely bent into a groove shape. By abutting and bending with the connecting frame, the flexible bracket can be bent at a predetermined bending position more accurately. It is relatively simple to bend the flexible bracket into shape, and after bending, the state of the flexible bracket can be maintained by the clamping module. After the light-transmitting rubber block 1 and the light-transmitting rubber block 2 are firmly bonded by the adhesive, the flexible bracket can be removed from the clamping module. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the overall structure of the slot-type photoelectric switch and the slot-type encoder structure of the present invention;

[0046] Figure 2 It is a schematic diagram of the flexible support structure in the present invention;

[0047] Figure 3 It is a partial structural schematic diagram of the card slot module in the present invention;

[0048] Figure 4 It is a schematic diagram of the internal structure of the support seat 2 in the present invention;

[0049] Figure 5 It is a schematic diagram of the internal top view of the rotating rod in the present invention;

[0050] Figure 6 It is a structural schematic diagram of the molding device in the present invention;

[0051] Figure 7 It is a schematic diagram of the internal structure of the conveying module in the present invention;

[0052] Figure 8 It is a schematic diagram of the internal top view of the pulling mechanism in the present invention;

[0053] Fig. 9 It is a schematic diagram of the structure of the extrusion module in the present invention;

[0054] Fig.10 It is a schematic diagram of the internal structure of the abutment frame 1 in the present invention;

[0055] Fig.11 yes Fig.10 A magnified image of point A;

[0056] Fig.12 It is a schematic diagram of the internal structure of the connection box in the present invention;

[0057] Fig.13 It is a schematic diagram of the internal structure of the extrusion rod in the present invention;

[0058] Fig.14 It is a structural schematic diagram of a connection frame in the present invention;

[0059] Fig.15 It is a schematic diagram of the hydraulic rod structure in the present invention.

[0060] In the figure: 100, flexible bracket; 110, lamp beads; 120, light-transmitting rubber block 1; 130, light-transmitting rubber block 2; 200, positioning module; 210, support seat 1; 211, connecting block; 220, support seat 2; 221, spring 1; 230, plug-in frame; 231, plug-in seat; 232, sliding rod; 240, rotating rod; 241, ratchet ring; 250, ratchet rod; 251, spring 2; 300, conveying module; 310, base; 320, side frame; 321, power motor; 330, transmission belt; 331, positioning block; 340, transmission rod; 350, pulling mechanism; 351, connecting seat; 352, sliding frame; 353, connecting rod; 354, spring 3; 360, support shaft; 40 0. Extrusion module; 410. Connection box; 411. Support frame; 412. Positioning frame one; 413. Positioning frame two; 420. Extrusion rod; 421. Sliding block; 422. Push rod one; 430. Connection frame one; 431. Abutment frame one; 432. Opening slot one; 433. Sliding plate; 434. Fixed plate one; 435. Push rod two; 440. Connection frame two; 441. Abutment frame two; 442. Opening slot two; 443. Fixed plate two; 450. Connection shaft one; 451. Connection gear one; 452. Connection rack one; 453. Rectangular block; 460. Connection shaft two; 461. Connection gear two; 462. Connection rack two; 470. Hydraulic rod; 471. Adjustment block; 480. Connection pipe. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] See also Figure 1-3In an embodiment of the present invention, a slot-type photoelectric switch and a slot-type encoder structure include a flexible bracket 100, two lamp beads 110, a light-transmitting rubber block 1 120, and two light-transmitting rubber blocks 2 130;

[0063] The flexible bracket 100 can play a role of protective support, and the two lamp beads 110 are respectively fixedly connected on both sides of the top surface of the lamp beads 110. The two lamp beads 110 are respectively used for transmitting and receiving. The light-transmitting rubber block 120 is fixedly connected on the top surface of the flexible bracket 100, and the two light-transmitting rubber blocks 130 are respectively fixedly connected on both sides of the top surface of the lamp beads 110. Both sides of the light-transmitting rubber block 120 and one side of the light-transmitting rubber block 120 corresponding to the light-transmitting rubber block 130 are provided with inclined surfaces, and an adhesive layer is provided on the inclined surface. After the flexible bracket 100 is bent, the light-transmitting rubber block 120 and the light-transmitting rubber block 2 130 can be bonded and fixed by the adhesive layer.

[0064] The specific packaging steps of the slot-type photoelectric switch and slot-type encoder structure are as follows:

[0065] Step 1: Connect two lamp beads 110 for transmitting and receiving to the top surface of the flexible bracket 100 through the SMT process;

[0066] Step 2: Encapsulate the light-transmitting rubber block 120 and two light-transmitting rubber blocks 130 on the flexible bracket 100 on which the lamp beads 110 have been installed, wherein the light-transmitting rubber block 120 is located in the middle of the flexible bracket 100, and the inclined surface of the light-transmitting rubber block 130 is aligned with the light-transmitting rubber block 120;

[0067] Step 3: Insert the flexible bracket 100 encapsulated with the light-transmitting adhesive block 1 120 and the light-transmitting adhesive block 2 130 into the interior of the clamping module 200;

[0068] Step 4: Transport the positioning module 200 equipped with the flexible bracket 100 to the molding device, extrude the flexible bracket 100 through the molding device, bend the flexible bracket 100 into a groove shape along both sides of the transparent rubber block 1 120, and bond the inclined surface of the transparent rubber block 1 120 and the inclined surface of the transparent rubber block 2 130 through the adhesive layer.

[0069] In step 4, after the flexible bracket 100 is bent and the transparent adhesive block 120 and the transparent adhesive block 2 130 are bonded, the clamping module 200 can shape the flexible bracket 100 . After the adhesive layer is firmly bonded, the flexible bracket 100 is taken out of the clamping module 200 .

[0070] Specifically, the transmitting and receiving lamp beads 110 are first installed on the flexible bracket 100 such as PFC, and then a translucent shell of a translucent rubber block 120 and a translucent rubber block 2 130 is prepared on the surface of the flexible bracket 100 such as PFC, and finally the flexible bracket 100 is bent into a slot-shaped shape. Compared with the existing slot-type photoelectric switch and slot-type encoder packaging method, there is no need to use a plastic shell or a metal shell, and there is no need to open holes in the translucent shell. The lamp beads 110 are directly bent from a plane into a slot-shaped structure. The packaging method has relatively few steps and is relatively simple, which is conducive to the rapid packaging of the slot-type photoelectric switch and the slot-type encoder, and can ensure the functional stability of the slot-type photoelectric switch and the slot-type encoder. Embodiment 1

[0071] like Figure 3-5 As shown, in this embodiment, the positioning module 200 includes a support seat 1 210, two support seats 220, two plug-in frames 230, four rotating rods 240, and four ratchet rods 250;

[0072] The support seat 1 210 is arranged on the bottom surface of the flexible bracket 100, and two connecting blocks 211 are fixedly connected to the two side surfaces of the support seat 1 210, and the two supporting seats 220 are respectively arranged on both sides of the support seat 1 210, and the inner side surface of the supporting seat 220 is rotatably connected to the two adjacent connecting blocks 211, and the inner side surface of the bottom of the supporting seat 220 is fixedly connected with a spring 1 221, and the two plug-in frames 230 are respectively slidably connected to the top surfaces of the two supporting seats 220, and the back surfaces of the two plug-in frames 230 are fixedly connected with a plug-in seat 231 which is slidably connected to the inner side surface of the supporting seat 220, and the side surface of the plug-in seat 231 is fixedly connected to the end of the adjacent spring 1 221, and under the action of the spring 1 221, the position of the plug-in seat 231 and the plug-in frame 230 can be limited, so that the plug-in frame 230 can stably cover the flexible bracket 100 and the light-transmitting rubber block 2 130, and the top of the side surface of the plug-in seat 231 is fixedly connected with two sliding rods 232 which are slidably connected to the inner side surface of the supporting seat 220;

[0073] The four rotating rods 240 are respectively fixedly connected to the inner side surfaces of the four connecting blocks 211, and the side surfaces of the rotating rod 240 are rotatably connected to the inner side surfaces of the adjacent supporting seats 220. The side surfaces of the rotating rod 240 corresponding to the supporting seats 220 are fixedly connected with ratchet rings 241, and the four ratchet rods 250 are respectively meshed with the four ratchet rings 241. The inner side surfaces of the supporting seats 220 are slidingly connected to the side surfaces of two adjacent ratchet rods 250. The side surfaces of the ratchet rods 250 are fixedly connected with springs 251 fixedly connected to the sides of the adjacent sliding rods 232. The sliding rod 232 can limit the angle of the ratchet ring 241 through the springs 251, so that the ratchet ring 241 and the rotating rod 240 can only rotate in one direction.

[0074] In the specific implementation, the plug-in frame 230 can be pulled to move the plug-in frame 230 away from the support seat 1 210, and then the flexible bracket 100 with the lamp beads 110, the light-transmitting rubber block 120, and the light-transmitting rubber block 2 130 installed can be placed on the support seat 1 210 and the support seat 2 220. After the plug-in frame 230 is released, the plug-in frame 230 can be covered with the light-transmitting rubber block 2 130 under the action of the spring 1 221, so as to position the flexible bracket 100, and at this time, the sliding rod 232 The ratchet rod 250 can be squeezed by the spring 251 to keep the ratchet rod 250 engaged with the ratchet ring 241. When the flexible bracket 100 is bent, the support seat 220 will rotate upward with the rotating rod 240 as the center, so that the flexible bracket 100 is bent upward at the position between the light-transmitting rubber block 120 and the light-transmitting rubber block 2 130, thereby bending both sides of the flexible bracket 100 upward to bend the flexible bracket 100 into a groove shape. The first 210 and the second support seat 220 support and position the flexible bracket 100. After the second transparent rubber block 130 contacts the inclined surface on the first transparent rubber block 120, the first transparent rubber block 120 and the second transparent rubber block 130 can be bonded and fixed by an adhesive. At this time, the rotating rod 240 can prevent the ratchet rod 250 from rotating in the opposite direction, thereby preventing the second support seat 220 from rotating in the opposite direction. In this way, the flexible bracket 100 can be shaped by the positioning module 200. After being firmly bonded to the second light-transmitting rubber block 130, the plug-in frame 230 can be pulled upward to separate the plug-in frame 230 from the second light-transmitting rubber block 130, and then the flexible bracket 100 can be removed from the positioning module 200, and when the plug-in frame 230 moves, it can drive the sliding rod 232 to move, and the sliding rod 232 can pull the ratchet rod 250 to move through the second spring 251, so that the ratchet rod 250 is separated from the rotating rod 240, and then the support seat 220 can be rotated in the opposite direction to its original position.

[0075] like Figure 6-15 As shown, in this embodiment, the molding device includes a conveying module 300 and an extrusion module 400;

[0076] The conveying module 300 can convey the flexible bracket 100 and the clamping module 200;

[0077] The extrusion module 400 is arranged on the conveying module 300, and the extrusion module 400 includes a connection box 410, and the two sides of the connection box 410 are fixedly connected to the support frame 411, and the connection box 410 is provided with an extrusion rod 420 inside, and the side of the extrusion rod 420 is slidably connected to the connection frame 1 430, and the top of the side of the connection frame 1 430 is fixedly connected to a sliding plate 433 that is slidably connected to the inner side of the connection box 410, and the bottom surface of the connection frame 1 430 is fixedly connected to two abutment frames 1 431, and the bottom surface of the abutment frame 1 431 is provided with an opening groove 1 432, and the inner side of the opening groove 1 432 The top is connected to the inside of the abutment frame 431, the bottom of the side of the connection frame 430 is slidably connected to the connection frame 440 that is slidably connected to the inner side of the connection box 410, the bottom of the connection frame 440 is fixedly connected to two abutment frames 441, the bottom of the abutment frame 441 is provided with an opening groove 442, the top of the inner side of the opening groove 442 is connected to the inside of the abutment frame 441, the two abutment frames 431 and the top of the side of the two abutment frames 441 are both connected with a connection pipe 480, the connection pipe 480 is a three-way pipe, and the connection pipe 480 can be connected to the matching conveying structure through a hose;

[0078] The top surface of the extrusion rod 420 is fixedly connected to a sliding block 421 slidably connected to the inner side surface of the connecting box 410, and the inner bottom surfaces on both sides of the connecting box 410 are fixedly connected to hydraulic rods 470. The output end of the hydraulic rod 470 is transmission-connected to an adjustment block 471 fixedly connected to the side of the sliding block 421.

[0079] In a specific implementation, the hydraulic rod 470 can be used to move the adjustment block 471 and the sliding block 421 downward, so that the extrusion rod 420 moves downward, and the connecting frame 1 430 and the connecting frame 2 440 are moved downward, and the abutting frame 2 441 will first contact the inclined surface of the light-transmitting rubber block 130, and the adhesive can be transported into the hose through the conveying structure, and then the adhesive is transported to the inside of the abutting frame 2 441 through the connecting pipe 480, and the adhesive inside the connecting frame 2 440 can flow to the inclined surface of the light-transmitting rubber block 130 through the opening groove 2 442, so that the adhesive gradually covers the inclined surface of the light-transmitting rubber block 130, and then the connecting frame 2 440 is moved upward, and the connecting frame 1 430 is moved downward to abut the inclined surface of the light-transmitting rubber block 120, and the connecting pipe 480 on the abutting frame 1 431 transports the adhesive to the hose. The light-transmitting adhesive block 120 is sent to the abutting frame 431, and the adhesive in the connecting frame 430 can flow through the corresponding opening groove 432 to the inclined surface of the light-transmitting adhesive block 120. At the same time, the light-transmitting adhesive block 120 can be squeezed downward by the connecting frame 430 to make the flexible bracket 100 bend along the side of the connecting frame 430. After the flexible bracket 100 is bent at a certain angle, the connecting frame 430 is moved upward to move the squeezing rod 420 downward, and the light-transmitting adhesive block 120 is continuously squeezed by the squeezing rod 420 to make the flexible bracket 100 completely bent into a groove shape. By abutting and bending with the connecting frame 430, the flexible bracket 100 can be bent at a predetermined bending position more accurately, and it is relatively simple to bend the flexible bracket 100 into shape, and the adhesive can be applied and the bending can be performed at the same time, which is conducive to the rapid molding of the flexible bracket 100. Embodiment 2

[0080] Based on the first embodiment, Figure 12-14 As shown, in this embodiment, both sides of the top surface of the connection frame 430 are fixedly connected with a fixing plate 434 that is slidably connected to the side of the connection box 410, and both sides of the top surface of the connection frame 440 are fixedly connected with a fixing plate 443 that is slidably connected to the inner side of the connection box 410;

[0081] A connecting shaft 1 450 is provided on both sides of the extrusion rod 420, and a connecting gear 1 451 is fixedly sleeved on the side of the connecting shaft 1 450, and the connecting gear 1 451 is meshed with two connecting racks 1 452 for transmission, and the two side surfaces of the extrusion rod 420 are fixedly connected to the side of the adjacent connecting rack 1 452, and the opposite surfaces of the two fixed plates 1 434 are fixedly connected to the side of the adjacent connecting rack 1 452, and a connecting shaft 2 460 is provided between the fixed plate 1 434 and the adjacent fixed plate 2 443, and a connecting gear 2 461 is fixedly sleeved on the side of the connecting shaft 2 460, and the connecting gear 2 461 is meshed with two connecting racks 2 462 for transmission, and the opposite back surfaces of the two fixed plates 1 434 are fixedly connected to the side of the adjacent connecting rack 2 462, and the opposite surfaces of the two fixed plates 2 443 are fixedly connected to the side of the adjacent connecting rack 2 462;

[0082] The two inner sides of the connection box 410 correspond to the connection shaft 1 450, and are fixedly connected to two positioning frames 1 412. Both ends of the connection shaft 1 450 are fixedly connected to rectangular blocks 453 that are slidably connected to the inner sides of the adjacent positioning frames 1 412. The rectangular blocks 453 can slide up and down inside the positioning frame 1 412. The top of the positioning frame 1 412 is a straight section, and the bottom is round. The straight section of the positioning frame 1 412 can prevent the rectangular block 453 from rotating. After the rectangular block 453 moves to the round bottom of the positioning frame 1 412, the rectangular block 453 can rotate in the round bottom of the positioning frame 1 412. The two inner sides of the connection box 410 correspond to the connection shaft 2 460. Both sides of the extrusion rod 420 are fixedly connected with two positioning frames 413, and the side surfaces at both ends of the connecting shaft 460 are in contact with the inner side surfaces of the adjacent positioning frames 413. The connecting shaft 460 can move up and down along the positioning frame 413, and the connecting gear 461 can be selectively rotatably connected to the inside of the positioning frame 413, so as to avoid the inner wall of the positioning frame 413 causing a certain resistance to the rotation of the connecting gear 461. The two sides of the extrusion rod 420 are fixedly connected with two pushing rods 422 in contact with the sides of the adjacent connecting shaft 450, and the two sides of the sliding plate 433 are fixedly connected with two pushing rods 435 in contact with the sides of the adjacent connecting shaft 460.

[0083] In specific implementation, since the straight section at the top of the positioning frame 412 can prevent the rectangular block 453 from rotating, and the push rod 422 prevents the connecting shaft 450 from moving downward relative to the extrusion rod 420, the height of the fixing plate 434 and the connecting frame 430 can be maintained by connecting the gear 451 and the connecting rack 452, and the push rod 435 can prevent the connecting shaft 460 from moving downward relative to the connecting frame 430, so that the connecting frame 430 can maintain the height of the connecting frame 440 by connecting the gear 461 and the connecting rack 462. When the hydraulic rod 470 moves the extrusion rod 420 downward, the connecting frame 430 and the connecting frame 440 can follow the extrusion rod 420 to move downward, and at the same time, the connecting shaft 450 moves downward. When the abutting frame 441 first falls on the light-transmitting rubber block 130, the connecting shaft 460 will move to the positioning frame At the bottom of the second 413, after applying adhesive to the inclined surface of the second light-transmitting rubber block 130, the extrusion rod 420 and the connection frame 1 430 can continue to move downward. Since the positioning frame 1 412 prevents the connection gear 1 451 from rotating, the extrusion rod 420 can push the connection frame 1 430 to move downward through the connection gear 1 451 and the connection rack 1 452, so that the fixed plate 1 434 moves downward. At this time, the positioning frame 2 413 supports the second connection shaft 460, so that the fixed plate 1 434 will drive the connection rack 2 462 thereon to move downward relative to the connection gear 2 461, thereby driving the connection gear 2 461 to rotate, and the connection gear 2 461 can drive the connection rack 2 462 on the fixed plate 2 443 to move, so that the fixed plate 2 443 drives the connection frame 2 440 to move upward, thereby causing the abutment frame 2 441 to move upward and disengage from the second light-transmitting rubber block 130;

[0084] After the connecting frame 430 moves downward and the abutting frame 431 contacts the inclined surface of the light-transmitting adhesive block 120, adhesive can be applied to the inclined surface of the light-transmitting adhesive block 120, and the squeezing rod 420 continues to move the connecting frame 430 downward, and the connecting frame 430 can squeeze the light-transmitting adhesive block 120 downward through the abutting frame 431 to bend the flexible bracket 100. After the connecting shaft 450 drives the rectangular block 453 to move downward and the rectangular block 453 moves to the circular bottom of the positioning frame 412, the positioning frame 412 can prevent the connecting shaft 450 from moving downward, and the rectangular block 453 can rotate in the circular bottom of the positioning frame 412, so that when the squeezing rod 420 continues to move downward, the squeezing rod 420 can drive the connecting shaft 450 to move downward. The connecting rack 1 452 on it is moved downward relative to the connecting gear 1 451, so that the connecting gear 1 451 and the connecting shaft 1 450 rotate, and the connecting gear 1 451 can move the connecting gear 1 451 on the fixing plate 1 434 downward, so that the connecting frame 1 430 and the fixing plate 1 434 can move upward, so that the abutting frame 1 431 is separated from the transparent rubber block 120, and then the squeezing rod 420 continues to move and will contact the top surface of the transparent rubber block 120, and the transparent rubber block 120 is continuously squeezed by the squeezing rod 420, so that the flexible bracket 100 is completely bent and formed, and when the squeezing rod 420 moves the connecting frame 1 430 upward, the connecting frame 1 430 can make the connecting frame 2 440 move downward again through the connecting gear 2 461;

[0085] After the flexible bracket 100 is formed, the extrusion rod 420 can be moved upward by the hydraulic rod 470, and the connecting frame 1 430 will be moved downward, and the connecting frame 2 440 will be moved upward again. When the extrusion rod 420 moves upward and the top surface of the push rod 1 422 contacts the bottom of the side of the connecting shaft 1 450, the extrusion rod 420 can push the connecting shaft 1 450 to move upward through the push rod 1 422. Since the extrusion rod 420 moves a fixed distance, the rectangular block 453 will be opposite to the straight section of the positioning frame 1 412, so that the rectangular block 453 can be smoothly inserted into the straight section of the positioning frame 1 412. At this time, the positioning frame 1 412 prevents the connecting shaft 1 450 from rotating through the rectangular block 453, and the push rod 1 422 prevents the connecting shaft 1 450 from moving downward. Therefore, the extrusion rod 420 can drive the connecting frame 1 430 to move upward through the connecting gear 1 451 and the connecting rack 1 452, and the connecting frame 2 440 will move downward. 40, the bottom ends are at the same height, the flexible bracket 100 is moved out from the bottom of the extrusion module 400, and the connecting frame 1 430 continues to move upward, so that the top surface of the pushing rod 2 435 contacts the bottom of the side of the connecting shaft 2 460, and the connecting frame 1 430 can push the connecting shaft 2 460 to move upward through the pushing rod 2 435. Since the pushing rod 2 435 prevents the connecting shaft 2 460 from moving downward relative to the fixing plate 1 434, this will prevent the connecting shaft 2 460 from rotating. The connecting shaft 2 460 can move the fixing plate 2 443 upward through the connecting rack 2 462, thereby moving the connecting frame 2 440 upward, and then the next flexible bracket 100 can be moved to the bottom of the extrusion module 400 for extrusion molding. The positions of the connecting frame 1 430 and the connecting frame 2 440 can be adjusted only by moving the extrusion rod 420 up and down. First, apply adhesive to the light-transmitting rubber block 1 120 and the light-transmitting rubber block 2 130, and then bend the flexible bracket 100 to form. The operation is simple and easy to use.

[0086] The distance between the bottom ends of the second abutting frame 441 and the first abutting frame 431 is greater than the distance between the bottom ends of the abutting frame 431 and the squeezing rod 420 to prevent the second abutting frame 441 from abutting against the plug-in frame 230 when the squeezing rod 420 squeezes the transparent rubber block 120 downward.

[0087] like Figure 6-8 As shown, in this embodiment, the conveying module 300 includes a base 310, two side frames 320, a transmission belt 330, four transmission rods 340, two pulling mechanisms 350, and two support shafts 360;

[0088] The base 310 can play a supporting role. The top surface of the base 310 is fixedly connected to the bottom surfaces of the two support frames 411. The two side frames 320 are fixedly connected to the top surface of the base 310. The base 310 can support the side frames 320. The base 310 can support the connection box 410 through the support frames 411. A power motor 321 is fixedly connected to the top of the side of one side frame 320. The transmission belt 330 is arranged between the two side frames 320. A plurality of positioning blocks 331 are fixedly connected to the side of the transmission belt 330. The plurality of positioning blocks 331 are equidistant in pairs. Distributed on the transmission belt 330, the opposite surfaces of the two support seats 220 are in contact with the side surfaces of the adjacent positioning blocks 331, the four transmission rods 340 are rotatably connected between the two side frames 320, the inner side of the transmission belt 330 is transmission-connected with the sides of the four transmission rods 340, the output end of the power motor 321 is transmission-connected with the end of one transmission rod 340, the two pulling mechanisms 350 are arranged between the two side frames 320, the two support shafts 360 are rotationally connected between the two side frames 320, and the top of the side of the support shaft 360 is in contact with the inner top surface of the transmission belt 330;

[0089] The pulling mechanism 350 includes a connecting seat 351, a sliding frame 352, a connecting rod 353, and a spring 354;

[0090] The connecting seat 351 is fixedly connected between the two side frames 320, the sliding frame 352 is slidably connected inside the connecting seat 351, the connecting rod 353 is rotatably connected inside the sliding frame 352, the transmission belt 330 passes around the side of the connecting rod 353, and a groove is provided in the middle of the connecting rod 353 corresponding to the positioning block 331, so that the positioning block 331 can pass through the connecting rod 353. The spring three 354 is fixedly connected to the inner side surface of the connecting seat 351 and the inner side surface of the sliding frame 352. Under the action of the spring three 354, the position of the sliding frame 352 can be limited, thereby limiting the position of the connecting rod 353. The connecting rod 353 can pull the transmission belt 330 to tighten the transmission belt 330.

[0091] During specific implementation, the positioning module 200 equipped with the flexible bracket 100 can be placed on the transmission belt 330, so that a group of two positioning blocks 331 are in contact with the corresponding support seat 220, and the position of the positioning module 200 is limited by the positioning block 331. The power motor 321 can drive a transmission rod 340 to rotate, and the transmission rod 340 can drive the transmission belt 330 to rotate, so that the flexible bracket 100 and the positioning module 200 are transported by the transmission belt 330. After the positioning module 200 is transported to the bottom of the extrusion module 400, the positioning module 200 will be located between the two support shafts 360. When the extrusion rod 420 and the connecting frame 1 430 extrude and bend the flexible bracket 100, the positioning module 200 can squeeze the transmission belt 330 to make the connecting frame 1 430 The connecting rod 353 moves away from the connecting seat 351, reducing the bending degree of the transmission belt 330 at the connecting rod 353, so that the transmission belt 330 can be recessed between the two support shafts 360, thereby allowing the flexible bracket 100 to bend downward smoothly. After the bending is completed, when the extrusion rod 420 and the connecting frame 1 430 move upward, under the action of the spring three 354, the sliding frame 352 can drive the connecting rod 353 to move toward the connecting seat 351, so that the transmission belt 330 continues to be taut through the connecting rod 353. By bending the transmission belt 330, the flexible bracket 100 can be directly transported to the bending position through the transmission belt 330, and after the bending is completed, the flexible bracket 100 can be immediately continued to be transported, which is beneficial to the continuous processing of the flexible bracket 100.

[0092] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0093] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A packaging method for a slot-type photoelectric switch and a slot-type encoder structure, characterized in that: The slot type photoelectric switch and slot type encoder structure include: The flexible support (100) can play a protective supporting role; Two lamp beads (110) are respectively fixedly connected to two sides of the top surface of the lamp bead (110); A light-transmitting rubber block (120) fixedly connected to the top surface of the flexible bracket (100); Two light-transmitting adhesive blocks (130) are respectively fixedly connected to the two sides of the top surface of the lamp bead (110), and both sides of the light-transmitting adhesive block (120) and one side of the light-transmitting adhesive block (120) corresponding to the light-transmitting adhesive block (130) are provided with inclined surfaces, and an adhesive layer is provided on the inclined surfaces; The specific packaging steps of the packaging method of the slot-type photoelectric switch and slot-type encoder structure are as follows: Step 1: Connect two lamp beads (110) for transmitting and receiving to the top surface of the flexible bracket (100) through the SMT process; Step 2: Encapsulating a light-transmitting rubber block 1 (120) and two light-transmitting rubber blocks 2 (130) on the flexible bracket (100) on which the lamp beads (110) have been installed, wherein the light-transmitting rubber block 1 (120) is located in the middle of the flexible bracket (100), and the inclined surface of the light-transmitting rubber block 2 (130) is aligned with the light-transmitting rubber block 1 (120); Step three: inserting the flexible bracket (100) encapsulating the light-transmitting adhesive block 1 (120) and the light-transmitting adhesive block 2 (130) into the interior of the locking module (200); Step 4: The positioning module (200) equipped with the flexible bracket (100) is transported to a molding device, and the flexible bracket (100) is extruded and molded by the molding device, and the flexible bracket (100) is bent into a groove shape along the two sides of the light-transmitting rubber block (120), and the inclined surface of the light-transmitting rubber block (120) is bonded to the inclined surface of the light-transmitting rubber block (130) through an adhesive layer.

2. The packaging method of the slot-type photoelectric switch and slot-type encoder structure according to claim 1, characterized in that: In step 4, after the flexible bracket (100) is bent and the light-transmitting adhesive block 1 (120) is bonded to the light-transmitting adhesive block 2 (130), the positioning module (200) can shape the flexible bracket (100), and after the adhesive layer is firmly bonded, the flexible bracket (100) is removed from the positioning module (200).

3. The packaging method of the slot-type photoelectric switch and slot-type encoder structure according to claim 1, characterized in that: The positioning module (200) comprises: A support seat 1 (210) is arranged on the bottom surface of the flexible bracket (100), and two side surfaces of the support seat 1 (210) are fixedly connected to two connection blocks (211); Two support seats 2 (220) are respectively arranged on both sides of the support seat 1 (210); the inner side surface of the support seat 2 (220) is rotatably connected to two adjacent connection blocks (211); and the inner side surface of the bottom of the support seat 2 (220) is fixedly connected to the spring 1 (221); The two plug-in frames (230) are respectively slidably connected to the top surfaces of the two support seats (220); the back surfaces of the two plug-in frames (230) are fixedly connected with plug-in seats (231) slidably connected to the inner side surface of the support seat (220); the side surface of the plug-in seat (231) is fixedly connected to the end of the adjacent spring (221); and the top of the side surface of the plug-in seat (231) is fixedly connected with two sliding rods (232) slidably connected to the inner side surface of the support seat (220).

4. The packaging method of the slot-type photoelectric switch and slot-type encoder structure according to claim 3, characterized in that: The positioning module (200) further includes: Four rotating rods (240) are respectively fixedly connected to the inner side surfaces of the four connecting blocks (211); the side surfaces of the rotating rods (240) are rotatably connected to the inner side surfaces of the adjacent second supporting seats (220); and the side surfaces of the rotating rods (240) are fixedly connected to the corresponding second supporting seats (220) with ratchet rings (241); The four ratchet rods (250) are respectively meshed with the four ratchet rings (241); the inner side surface of the second support seat (220) is slidably connected to the side surfaces of two adjacent ratchet rods (250); and the side surfaces of the ratchet rods (250) are fixedly connected to the second spring (251) fixedly connected to the side surfaces of the adjacent sliding rods (232).

5. The packaging method of the slot-type photoelectric switch and slot-type encoder structure according to claim 3, characterized in that: The molding device includes: A conveying module (300) capable of conveying the flexible bracket (100) and the clamping module (200); The extrusion module (400) is arranged on the conveying module (300), and the extrusion module (400) comprises a connection box (410), and the two sides of the connection box (410) are fixedly connected to the support frame (411), and the connection box (410) is provided with an extrusion rod (420) inside, and the side of the extrusion rod (420) is slidably connected to the connection frame 1 (430), and the top of the side of the connection frame 1 (430) is fixedly connected to a sliding plate (433) that is slidably connected to the inner side of the connection box (410), and the bottom surface of the connection frame 1 (430) is fixedly connected to two abutment frames 1 (431), and the bottom surface of the abutment frame 1 (431) is provided with an opening The first opening groove (432) is provided, and the top of the inner side surface of the first opening groove (432) is connected to the inside of the first abutment frame (431); the bottom of the side surface of the first connection frame (430) is slidably connected to a second connection frame (440) slidably connected to the inner side surface of the connection box (410); the bottom surface of the second connection frame (440) is fixedly connected to two second abutment frames (441); the bottom surface of the second abutment frame (441) is provided with a second opening groove (442); the top of the inner side surface of the second opening groove (442) is connected to the inside of the second abutment frame (441); the two first abutment frames (431) and the top of the side surfaces of the two second abutment frames (441) are both connected to a connecting pipe (480).

6. The packaging method of the slot-type photoelectric switch and slot-type encoder structure according to claim 5, characterized in that: Both sides of the top surface of the first connection frame (430) are fixedly connected to a first fixing plate (434) slidably connected to the side surface of the connection box (410), and both sides of the top surface of the second connection frame (440) are fixedly connected to a second fixing plate (443) slidably connected to the inner side surface of the connection box (410); A connecting shaft 1 (450) is provided on both sides of the extrusion rod (420), a connecting gear 1 (451) is fixedly sleeved on the side of the connecting shaft 1 (450), and the connecting gear 1 (451) is meshed with two connecting racks 1 (452) for transmission, and the two side surfaces of the extrusion rod (420) are fixedly connected to the side of the adjacent connecting rack 1 (452), and the opposite surfaces of the two fixing plates 1 (434) are fixedly connected to the side of the adjacent connecting rack 1 (452), and a connecting shaft 2 (460) is provided between the fixing plate 1 (434) and the adjacent fixing plate 2 (443), a connecting gear 2 (461) is fixedly sleeved on the side of the connecting shaft 2 (460), and the connecting gear 2 (461) is meshed with two connecting racks 2 (462), and the opposite surfaces of the two fixing plates 1 (434) are fixedly connected to the side of the adjacent connecting rack 2 (462), and the opposite surfaces of the two fixing plates 2 (443) are fixedly connected to the side of the adjacent connecting rack 2 (462); Two inner side surfaces of the connection box (410) corresponding to the connection shaft one (450) are fixedly connected to two positioning frames one (412), and both ends of the connection shaft one (450) are fixedly connected to rectangular blocks (453) that are slidably connected to the inner side surfaces of adjacent positioning frames one (412). Two inner side surfaces of the connection box (410) corresponding to the connection shaft two (460) are fixedly connected to two positioning frames two (413), and both end side surfaces of the connection shaft two (460) are in contact with the inner side surfaces of adjacent positioning frames two (413). Two side surfaces of the extrusion rod (420) are fixedly connected to two push rods one (422) that are in contact with the side surfaces of the adjacent connection shaft one (450), and two side surfaces of the sliding plate (433) are fixedly connected to two push rods two (435) that are in contact with the side surfaces of the adjacent connection shaft two (460).

7. The packaging method of the slot-type photoelectric switch and slot-type encoder structure according to claim 5, characterized in that: The top surface of the extrusion rod (420) is fixedly connected to a sliding block (421) slidably connected to the inner side surface of the connection box (410), the inner bottom surfaces on both sides of the connection box (410) are fixedly connected to hydraulic rods (470), and the output end of the hydraulic rod (470) is transmission-connected to an adjustment block (471) fixedly connected to the side surface of the sliding block (421).

8. The packaging method of the slot-type photoelectric switch and slot-type encoder structure according to claim 5, characterized in that: The conveying module (300) comprises: The base (310) can play a supporting role, and the top surface of the base (310) is fixedly connected to the bottom surfaces of the two support frames (411); Two side frames (320) are both fixedly connected to the top surface of the base (310), and a power motor (321) is fixedly connected to the top of the side surface of one side frame (320); A transmission belt (330) is arranged between the two side frames (320), a plurality of positioning blocks (331) are fixedly connected to the side of the transmission belt (330), and the opposite surfaces of the two support seats (220) are in contact with the side of the adjacent positioning blocks (331); Four transmission rods (340) are all rotatably connected between the two side frames (320); the inner side surface of the transmission belt (330) is transmission-connected to the side surfaces of the four transmission rods (340); and the output end of the power motor (321) is transmission-connected to the end of one transmission rod (340); Two pulling mechanisms (350) are arranged between the two side frames (320); The two support shafts (360) are both rotatably connected between the two side frames (320), and the top of the side surface of the support shaft (360) abuts against the inner top surface of the transmission belt (330).

9. The packaging method of the slot-type photoelectric switch and slot-type encoder structure according to claim 8, characterized in that: The pulling mechanism (350) comprises: A connecting seat (351) fixedly connected between the two side frames (320); A sliding frame (352) is slidably connected inside the connecting seat (351); A connecting rod (353) is rotatably connected to the inside of the sliding frame (352), and a transmission belt (330) passes around a side of the connecting rod (353); The spring three (354) is fixedly connected to the inner side surface of the connecting seat (351) and the inner side surface of the sliding frame (352).

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