Touch switch assembling machine

Abstract

The invention relates to the technical field of light touch switch assembling machines, in particular to a light touch switch assembling machine which comprises a die frame, a stamping die arranged on the die frame, a tray conveying mechanism arranged on the rear side of the die frame and a winding conveying mechanism arranged on the side of the die frame, and a discharging base is installed on the stamping die; the two ends of the discharging base penetrate to the two sides of the stamping die. The positioning mechanism comprises a material guiding seat installed on the material discharging seat and further comprises a feeding station oppositely arranged at the feeding end of the material guiding seat, and the feeding station is connected with the discharging end of the material disc conveying mechanism and is close to the feeding end of the winding conveying mechanism at the same time. The accuracy of the assembly position is obviously improved, the reject ratio is reduced, the assembled light touch switch can be smoothly and reliably discharged from the material returning hole, and the assembly automation degree, the production efficiency and the product yield of equipment are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of tactile switch assembly machine technology, and particularly to a tactile switch assembly machine. Background Technology

[0002] As a widely used human-machine interface component in electronic devices, the core structure of a tactile switch typically comprises a first assembly (such as the switch body and base) and a second assembly (such as the trigger spring and moving contact). To ensure the switch's electrical performance, tactile feedback, and lifespan, the second assembly, especially the critical trigger spring or moving contact, is often precision-stamped from stainless steel wire with excellent conductivity, elasticity, and corrosion resistance. This stainless steel wire is pre-processed in automated production and carried in an orderly manner on a continuously conveying carrier belt to form finished carrier rolls, facilitating efficient and continuous feeding and positioning in the assembly equipment.

[0003] In existing automated assembly equipment for tactile switches, a key technical challenge arises when using a carrier belt to transport the second assembly section (such as a trigger spring). When the moving die of the stamping mold moves downwards, applying pressure to the second assembly section at the current station on the carrier belt, and combining it with the first assembly section (such as the switch base) supplied by the material tray conveyor within the mold, a tremendous stamping force is applied instantaneously to the carrier belt. Due to the lack of effective reverse restraint on the carrier belt, although the part carrying the second assembly section (the product end) is positioned by the traction device (such as the receiving end of the winding conveyor), the scrap side is prone to undesirable retraction or displacement due to the force applied during stamping. This retraction directly prevents the next second assembly section to be assembled from being accurately and stably positioned directly above the pre-set ejection hole in the mold, severely restricting the ejection accuracy of the tactile switch and affecting production efficiency and yield. Summary of the Invention

[0004] To solve the above problems, the present invention provides a tactile switch assembly machine, including a mold frame, a stamping die disposed on the mold frame, a material tray conveying mechanism disposed on the rear side of the mold frame, and a winding conveying mechanism disposed on the side of the mold frame, wherein a discharge seat is installed on the stamping die; The two ends of the discharge seat extend through to both sides of the stamping die; The discharge seat is provided with a positioning mechanism. The positioning mechanism includes a guide seat installed on the discharge seat and a feeding station disposed opposite to the feeding end of the guide seat. The feeding station is connected to the discharge end of the material tray conveying mechanism and is also close to the feeding end of the winding conveying mechanism. The material guide seat is provided with a material returning hole, and the moving die part of the stamping die is arranged above the material returning hole.

[0005] As a further optimization, the lower die seat of the stamping die is provided with a left-right communicating assembly channel, the material returning seat is arranged in the assembly channel, the moving die part of the stamping die is arranged above the static die part and is driven by a cylinder.

[0006] As a further optimization, the moving die part of the stamping die is arranged above the material returning hole, and the moving die part is lifted relative to the material returning hole.

[0007] As a further optimization, the feeding station comprises a first feeding unit and a second feeding unit, the first feeding unit is connected to the output end of the material disc conveying mechanism, and the second feeding unit is close to the output end of the winding conveying mechanism.

[0008] As a further optimization, the material guide seat is provided with a straight material returning channel, the feeding end of the straight material returning channel is close to the first feeding unit and the second feeding unit, and the discharging end of the straight material returning channel is arranged outside the stamping die.

[0009] As a further optimization, the cross section of the straight material returning channel is T-shaped, the straight material returning channel is provided with two front and rear vertical guide rails, the lock block is arranged in the straight material returning channel, and the front and rear sides of the lock block are provided with positioning parts sliding in the front and rear guide rails.

[0010] As a further optimization, the top surface of the straight material returning channel is riveted with two front and rear cover plates, the front and rear cover plates are respectively arranged on the front and rear positioning parts, and are used for limiting the upward movement of the lock block.

[0011] As a further optimization, the bottom of the lock block is provided with an arc-shaped bottom surface, the arc-shaped bottom surface comprises an arc-shaped peak position in the middle and steep positions arranged on both sides of the arc-shaped peak position in the middle, the arc-shaped peak position in the middle is in contact with the groove bottom surface of the straight material returning channel at the maximum peak under the action of gravity, the arc-shaped peak positions on both sides form steep spaces between the cavity bottom of the straight material returning channel, and a movement gap is formed between the top surface of the lock block and the cover plate under the action of gravity.

[0012] As a further optimization, a reset spring is connected between the top of the lock block and the cover plate.

[0013] The beneficial effects of the present application compared with the prior art are: By means of the specially designed material discharging seat and positioning mechanism, especially the lock block and the pre-pressing part structure on the top of the lock block, the problem of inaccurate positioning of the next station caused by the retraction of the waste material side of the carrier tape during stamping is effectively overcome. The core beneficial effect is that while the moving die of the stamping die moves downward to perform the assembly action (presses the second assembly part to the first assembly part), the downward path of the moving die will simultaneously contact and press down the pre-pressing part on the top of the lock block, forcing the lock block to move downward and tightly pressing the waste material output end of the carrier tape on the material guide seat. At the same time, the pre-pressing part is heated to melt the carrier tape and bond the compressed micro switch, improving the yield of the micro switch. This action forms a reliable temporary fixing point on the waste material side of the carrier tape at a moment. The fixing point and the fixing point of the winding and conveying mechanism pulling the product end of the carrier tape together form two stable positioning points, forming effective restraint on the carrier tape. This restraint mechanism completely eliminates the retraction phenomenon of the waste material side during stamping stress, ensuring that the second assembly part to be assembled can be accurately and stably conveyed to the exact above of the material discharging hole when the carrier tape steps to the next station. This not only significantly improves the accuracy of the assembly position and reduces the defective rate, but also ensures that the assembled micro switch can be smoothly and reliably discharged from the material discharging hole, greatly improving the assembly automation degree, production efficiency and product yield of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The schematic diagram of the micro switch assembly machine from the first perspective according to the embodiment of the present application is provided. Figure 2 The schematic diagram of the micro switch assembly machine from the second perspective according to the embodiment of the present application is provided. Figure 3 The planar schematic diagram of the micro switch assembly machine according to the embodiment of the present application is provided. Figure 4 The schematic diagram of the material discharging seat of the micro switch assembly machine according to the embodiment of the present application is provided. Figure 5 The schematic diagram of the micro switch assembly machine according to the embodiment of the present application is provided. Figure 4 The exploded schematic diagram of the micro switch assembly machine according to the embodiment of the present application is provided. Figure 6 The partial sectional schematic diagram of the micro switch assembly machine according to the embodiment of the present application is provided. Figure 5

[0015] ​In the figure: 1, die frame; 2, stamping die; 21, assembly channel; 22, air cylinder; 3, tray conveying mechanism; 4, winding conveying mechanism; 5, material discharging seat; 51, material guiding seat; 511, straight material discharging channel; 512, guide rail; 513, cover plate; 52, material feeding station; 521, first material feeding unit; 522, second material feeding unit; 53, material discharging hole; 54, locking block; 541, pre-pressing part; 542, positioning part; 543, arc-shaped bottom surface; 5431, arc-shaped peak position; 5432, steep position; 5433, steep space; 5434, return spring. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0017] In an embodiment, as shown in the figure: Figures 1-6 The present embodiment provides a tactile switch assembly machine, which comprises a die frame 1, a stamping die 2 arranged on the die frame 1, a tray conveying mechanism 3 arranged on the rear side of the die frame 1, and a winding conveying mechanism 4 arranged on the side of the die frame 1, and the stamping die 2 is provided with a material discharging seat 5; the material discharging seat 5 is located between the moving die and the stationary die, the moving die is located above the material discharging seat 5, and the moving die can move relative to the material discharging seat 5 under the driving of the air cylinder; The two ends of the material discharging seat 5 penetrate through the two sides (feeding and discharging sides) of the stamping die 2; The material discharging seat 5 is provided with a positioning mechanism, which comprises a material guiding seat 51 arranged on the material discharging seat 5, and further comprises a material feeding station 52 arranged opposite to the feeding end of the material guiding seat 51, the material feeding station 52 is connected to the discharging end of the tray conveying mechanism 3, and is also close to the feeding end of the winding conveying mechanism 4; The material guiding seat 51 is provided with a material discharging hole 53; The moving die part of the stamping die 2 corresponds to the upper side of the material discharging hole 53, and the moving die part rises and falls relative to the material discharging hole 53; the positioning mechanism further comprises a locking block 54 arranged in the material guiding seat 51, the locking block 54 is close to the material discharging hole 53, and the top surface of the locking block 54 is provided with a pre-pressing part 541 corresponding to the descending path of the moving die.

[0018] ​In use, the storage box is placed at the bottom of the entire mold, the first assembly part (e.g. the main body part) of the micro switch is placed in the tray conveying mechanism 3 to prepare feeding to the feeding station 52 of the guide tray 51, the carrier tape finished product roll of the second assembly part (e.g. the trigger part) of the micro switch is placed on the winding conveying mechanism 4, and the carrier tape release end is introduced into the feeding station 52 of the guide tray 51 to complete the pre-feeding preparation. According to the non-standard automatic intelligent control principle, the tray conveying mechanism 3 and the winding conveying mechanism 4 feed respectively, the carrier tape conveys the second assembly part of the micro switch to the feeding station 52, the tray conveying mechanism 3 conveys the first assembly part of the micro switch to the feeding station 52, and the first assembly part and the second assembly part are matched and then fused together by the heating element (the station has a heating element). At this time, the carrier tape carries the first part to the discharging hole 53, the moving die stamping part is separated from the carrier tape, and the first part is discharged downward. At this time, the end of the waste material (the end separated from the second part) is discharged outward along the discharging side of the guide tray 51 (the side opposite to the winding conveying mechanism 4), the assembled micro switch is dropped downward into the storage box under the action of the die head, and the micro switch is discharged. The above is the non-standard automatic working principle of the micro switch assembly machine, and the punch structure on the moving die is not described in detail. The highlight of the embodiment is mainly reflected on the discharging seat 5, and specifically reflected on the positioning mechanism of the discharging seat 5. For example, the carrier tape waste output is positioned to prevent the second assembly part of the micro switch on the carrier tape from being reversely retracted when the first assembly part of the micro switch is assembled under pressure. When the moving die is lowered and provides assembly power for the second assembly part on the carrier tape, the relative contact position on the moving die is in contact with the top surface of the pre-pressing part 541, and the pre-pressing part 541 is pressed to the top surface of the pre-pressing part 541 when the assembly force is provided. The lock block 54 is lowered by the pre-pressing part 541, and the bottom surface of the lock block 54 is pressed onto the waste output end of the carrier tape, so that the waste output end of the carrier tape is pressed onto the guide tray 51 without retraction, and a temporary fixing point is formed on the waste output end of the carrier tape. The temporary fixing point and the traction point of the carrier tape product end (the end with the second assembly part of the micro switch) on the winding conveying mechanism 4 form two positioning points (stamping and positioning are synchronized). When the die head is lowered to the next step position of the second assembly part of the micro switch on the carrier tape, the second assembly part of the micro switch at the next step position can be accurately positioned at the discharging hole 53, ensuring that the assembled micro switch is effectively discharged after the second assembly part is separated from the carrier tape. This constraint mechanism completely eliminates the retraction phenomenon of the waste side under the action of the stamping force, and ensures that the second assembly part to be assembled can be accurately and stably conveyed to the exact above of the discharging hole 53 when the carrier tape steps to the next station.This not only significantly improves the accuracy of the assembly position, reduces the defective rate, but also ensures that the assembled micro switch can be smoothly and reliably discharged from the material discharge hole 53, greatly improving the equipment assembly automation degree, production efficiency and product yield.

[0019] Specifically, the lower die seat of the stamping die 2 is provided with a left-right communicating assembly channel 21, the material discharge seat 5 is arranged in the assembly channel 21, and the moving die part of the stamping die 2 is arranged above the static die part and is driven to move up and down relative to the lower die through the cylinder 22 mounted on the upper die plate.

[0020] The feeding station 52 includes a first feeding unit 521 connected to the output end of the tray conveying mechanism 3 and a second feeding unit 522 close to the output end of the winding conveying mechanism 4. The first feeding unit 521 and the second feeding unit 522 are provided with a collection place relative to the feeding end of the die, and the collection place communicates with the straight material discharge channel 511 on the material guide seat 51.

[0021] The tray conveying mechanism 3 conveys the first assembly part constituting the micro switch into the first feeding unit 521, and the winding conveying mechanism 4 conveys the second assembly part constituting the micro switch into the second feeding unit 522. They are finally collected at the collection place of the straight material discharge channel 511 and form a pre-assembly condition one by one, and then enter the stamping die 2 to complete the assembly and discharge through the stamping movement of the moving die to the static die. The first feeding unit 521 is vertically backward, which limits the tray conveying mechanism 3 at the rear side of the stamping die 2, and the second feeding unit 522 is vertically on the right-hand side of the first feeding unit 521, which limits the winding conveying mechanism 4 at the right-hand side of the stamping die 2, which is reasonable in layout and reduces the occupied space. The pre-pressing part 541 is provided with a heating module, and the heating module is used to make the pre-pressing part 541 work at a preset temperature; The material of the carrier tape is configured as a hot melt type carrier bonding material, so that the carrier tape is melted into a molten state when passing through the pre-pressing part. The hot melt type carrier bonding material is a material that is solid at room temperature, melts into glue when heated, and solidifies after cooling. It can be selected as: modified hot melt polyurethane (PU) elastomer sheet, low melting point polyamide (PA) hot melt adhesive film / sheet, ethylene-vinyl acetate copolymer (EVA) sheet. This carrier tape has stability in the solidified state and can be easily transmitted by rollers. When forming, the pre-pressing part melts so that the shape of this part does not affect the shape change of other parts, ensuring that the shape of the carrier tape will not be greatly affected. The formation of the glue liquid structure through melting can make the micro switch after stamping have a certain fixed shape and will not deform in rebound, thereby ensuring the stamping effect and yield.

[0022] The controller is further coupled with a feedback unit configured to collect processing information, and the controller generates execution instructions according to the processing information to control the cylinder 22 and the heating module to work.

[0023] The feedback unit is configured as an image processing module configured to collect image information of the hot-pressed carrier tape, and to generate deviation information according to comparison between the image information of the hot-pressed carrier tape and a preset reference image, the deviation information including position offset data and hot-melt deviation data, the controller generating a cylinder execution time according to the position offset data, and generating a deviation correction temperature according to the hot-melt deviation data, the execution instructions including the cylinder execution time and the deviation correction temperature. In order to improve the accuracy and adaptability to different micro switches, first, the image processing unit is configured to collect the image of the hot-pressed carrier tape, and to call the reference image by analyzing the image of the carrier tape, so as to know whether the last stamping position and melting efficiency affect the final product forming, because if the position is offset, the product is not located at the center of the glue liquid, and the stamping effect is poor, so the corresponding stamping position can be adjusted by image recognition, and specifically, the image is first calibrated in position to make the relative positions of the two images the same, and then the edge of the stamping hole after stamping is recognized to judge whether there is a position deviation to obtain corresponding position offset data, because it is on the carrier tape, so the left and right positions have been limited, so the cylinder execution time can be adjusted to correct the offset, on the other hand, the melting effect can be judged by the hole area size and the edge adhesion feature, and the temperature is adjusted, for example, if the temperature is too low, the edge adhesion is large, which affects the melting effect, so the adhesion feature can be identified by the abnormal feature comparison method, and then whether the hole area deviates from the reference value is combined to obtain the deviation correction temperature, preferably, the upper die can also be provided with a temperature module for heating to improve the melting efficiency, and the deviation correction temperature can correspond to the first pressing part 541 and also to the upper die.

[0024] In another embodiment, the material guide base 51 is provided with a straight material return channel 511, the material inlet end of the straight material return channel 511 is close to the first material feeding unit 521 and the second material feeding unit 522, and the material outlet end of the straight material return channel 511 reaches outside the stamping die 2. The cross-sectional shape of the straight material return channel 511 is T-shaped, the material guide base 5 is provided with a cavity, the bottom of the straight material return channel 511 is in communication with the cavity of the material guide base 5 in an up-down manner, so that the first part of the assembled microswitch enters the material return hole 53 along their communication position, the straight material return channel 511 is provided with front and rear vertical guide rails 512, the lock block 54 is located in the straight material return channel 511, and the front and rear sides of the lock block 54 are provided with positioning portions 542 sliding in the front and rear guide rails 512. When the lock block 54 is pressed downward, the cooperation between the two positioning portions 542 and the guide rails 512 improves the stability, and also ensures that the lock block 54 does not deflect when it is pressed downward.

[0025] In another embodiment, the top surface of the straight material return channel 511 is riveted with front and rear cover plates 513, the front and rear cover plates 513 are respectively covered on the front and rear positioning portions 542, so as to limit the excessive upward movement of the lock block 54, that is, there is a gap between the top surface of the lock block 54 and the bottom surface of the cover plate 513, but the bottom of the lock block 54 falls on the groove bottom surface of the straight material return channel 511 under the action of gravity, and when the relevant position on the moving die rises to separate from the top surface of the lock block 54, the bottom surface of the lock block 54 is pressed on the waste section of the carrier tape, but does not hinder the outward conveying of the waste section of the carrier tape.

[0026] In another embodiment, the bottom of the lock block 54 is provided with an arc-shaped bottom surface 543, which includes an intermediate arc-shaped peak position 5431 and steep positions 5432 arranged on both sides of the intermediate arc-shaped peak position 5431. Under the action of gravity, the maximum peak of the arc-shaped peak position 5431 is in contact with the groove bottom surface of the straight material return channel 511, so that the arc-shaped peak positions 5431 on both sides form steep spaces 5433 with the cavity bottom of the straight material return channel 511, and a movement gap is formed between the top surface of the lock block 54 and the cover plate 513 under the action of gravity. When the lock block 54 is pressed, the arc-shaped bottom surface 543 is pressed on the waste section of the carrier tape, the contact area of the arc-shaped bottom surface 543 is small, and when the lock block 54 is raised and reset, it is ensured that the lock block 54 does not press the waste section of the carrier tape, at this time, the outward conveying of the carrier tape is ensured.

[0027] In another embodiment, a reset spring 5434 is connected between the top of the locking block 54 and the cover plate 513, when the locking block 54 is pressed down to press the arc-shaped peak position 5431 against the waste section of the carrier tape, the reset spring 5434 is stretched and lengthened downward along the movement gap; when the pressure on the locking block 54 is removed, the reset spring 5434 rebounds upward and pulls the locking block 54 back upward, at this time, the arc-shaped peak position 5431 is away from the groove bottom of the straight-line material return channel 511, and the normal material return of the waste section of the carrier tape is maintained.

[0028] Further, the moving die lifting action mentioned in the present application is controlled by the non-standard automatic control system of the assembling machine to complete the cylinder 22, and is matched with linkage control according to the step feeding mode of the material disc conveying mechanism 3 and the winding conveying mechanism 4. This control mode is the conventional control mode of the existing non-standard automation, and the present application will not be described again.

[0029] Further, the material return hole 53 mentioned in the present application is not limited to a certain shape, for example, a material return auxiliary structure is arranged in the material return hole 53, and the above orientation designation does not represent the specific orientation of each component in the present embodiment. The present embodiment is only for the convenience of description of the scheme, and is described and set relatively by referring to the orientation in the drawing. The specific orientation of each component is according to the actual installation and actual use and the orientation description habit of the person skilled in the art, and this is stated.

[0030] The above specific embodiments further detail the purposes, technical solutions and advantages of the present application. It should be understood that the above description is only a specific embodiment of the present application, and is not used to limit the protection scope of the present application. It is particularly pointed out that any modification, equivalent replacement, improvement, etc. made by the person skilled in the art within the spirit and principles of the present application should be included in the protection scope of the present application.

[0031] The relational terms such as first and second and the like that are used in the context can only be used to distinguish one entity or action from another entity or action, and do not necessarily require or imply that these entities or actions have any such actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0032] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A tactile switch assembly machine, comprising a mold frame (1), a stamping die (2) disposed on the mold frame (1), a material tray conveying mechanism (3) disposed on the rear side of the mold frame (1), and a winding conveying mechanism (4) disposed on the side of the mold frame (1), characterized in that, The stamping die (2) is equipped with a discharge seat (5); The two ends of the discharge seat (5) extend to both sides of the stamping die (2); The discharge seat (5) is provided with a positioning mechanism. The positioning mechanism includes a guide seat (51) installed on the discharge seat (5). The positioning mechanism also includes a feeding station (52) arranged opposite to the feeding end of the guide seat (51). The feeding station (52) is connected to the discharge end of the tray conveying mechanism (3) and is also close to the feeding end of the winding conveying mechanism (4). The guide seat (51) is provided with a material ejection hole (53), and the moving part of the stamping die (2) is located above the material ejection hole (53). The positioning mechanism also includes a locking block (54) disposed in the guide seat (51). The locking block (54) is close to the material ejection hole (53), and the top surface of the locking block (54) is provided with a pre-pressing part (541) corresponding to the downward path of the moving die. The pre-pressing section (541) is provided with a heating module, which is used to make the pre-pressing section (541) work at a preset temperature; The carrier tape is configured as a hot-melt type carrier adhesive material so that it is melted into a molten state when it passes through the pre-pressing section (541).

2. The tactile switch assembly machine according to claim 1, characterized in that, The lower die base of the stamping die (2) is provided with an assembly channel (21) that is open to the left and right. The material discharge seat (5) is set in the assembly channel (21). The moving die part of the stamping die (2) is set above the stationary die part and is driven by a cylinder (22).

3. The tactile switch assembly machine according to claim 2, characterized in that, The moving part of the stamping die (2) is located above the ejector hole (53), and the moving part moves up and down relative to the ejector hole (53).

4. The tactile switch assembly machine according to claim 3, characterized in that, The feeding station (52) includes a first feeding unit (521) and a second feeding unit (522). The first feeding unit (521) is connected to the output end of the tray conveying mechanism (3), and the second feeding unit (522) is close to the output end of the winding conveying mechanism (4).

5. The tactile switch assembly machine according to claim 4, characterized in that, A straight ejection channel (511) is provided on the guide seat (51). The feeding end of the straight ejection channel (511) is close to the first feeding unit (521) and the second feeding unit (522), and the discharge end of the straight ejection channel (511) reaches outside the stamping die (2).

6. The tactile switch assembly machine according to claim 5, characterized in that, The straight material ejection channel (511) has a T-shaped cross section. The straight material ejection channel (511) is provided with two vertical guide rails (512) at the front and rear. The locking block (54) is located inside the straight material ejection channel (511). The locking block (54) has a positioning part (542) on its front and rear sides that slides in the two guide rails (512). The discharge seat (5) has a cavity that communicates vertically with the straight material ejection channel (511). The cavity reaches at least the ejection hole (53).

7. The tactile switch assembly machine according to claim 6, characterized in that, Two cover plates (513) are riveted to the top surface of the linear unloading channel (511). The two cover plates (513) cover the front and rear positioning parts (542) respectively to restrict the upward movement of the locking block (54).

8. The tactile switch assembly machine according to claim 7, characterized in that, The bottom of the locking block (54) is provided with an arc-shaped bottom surface (543). The arc-shaped bottom surface (543) includes a central arc-shaped peak position (5431) and steep positions (5432) on both sides of the central arc-shaped peak position (5431). Under the action of gravity, the maximum peak of the arc-shaped peak position (5431) contacts the bottom surface of the groove of the straight material ejection channel (511), so that a steep space is formed between the arc-shaped peak positions (5431) on both sides and the bottom of the cavity of the straight material ejection channel (511). Under the action of gravity, a movement gap is formed between the top surface of the locking block (54) and the cover plate (513).

9. The tactile switch assembly machine according to claim 8, characterized in that, It also includes a controller, the cylinder (22) and the heating module are coupled to the controller, the controller is also coupled to a feedback unit, the feedback unit is used to collect processing information, and the controller generates execution instructions based on the processing information to control the cylinder (22) and the heating module to work.

10. The tactile switch assembly machine according to claim 9, characterized in that, The feedback unit is configured as an image processing module. The image processing module is used to acquire image information of the hot-pressed carrier belt and compare it with a preset reference image to generate deviation information. The deviation information includes position offset data and hot melt deviation data. The controller generates cylinder execution time based on position offset data and generates deviation correction temperature based on hot melt deviation data. The execution command includes cylinder execution time and deviation correction temperature.

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